Elliott Hughes | 0f3c553 | 2012-03-30 14:51:51 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 17 | #include "asm_support_arm.S" |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 18 | |
Mathieu Chartier | 7410f29 | 2013-11-24 13:17:35 -0800 | [diff] [blame] | 19 | #include "arch/quick_alloc_entrypoints.S" |
| 20 | |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 21 | /* Deliver the given exception */ |
| 22 | .extern artDeliverExceptionFromCode |
| 23 | /* Deliver an exception pending on a thread */ |
| 24 | .extern artDeliverPendingException |
| 25 | |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 26 | /* |
Andreas Gampe | 76914b0 | 2015-07-17 20:14:50 -0700 | [diff] [blame] | 27 | * Macro to spill the GPRs. |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 28 | */ |
Andreas Gampe | 76914b0 | 2015-07-17 20:14:50 -0700 | [diff] [blame] | 29 | .macro SPILL_ALL_CALLEE_SAVE_GPRS |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 30 | push {r4-r11, lr} @ 9 words (36 bytes) of callee saves. |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 31 | .cfi_adjust_cfa_offset 36 |
| 32 | .cfi_rel_offset r4, 0 |
| 33 | .cfi_rel_offset r5, 4 |
| 34 | .cfi_rel_offset r6, 8 |
| 35 | .cfi_rel_offset r7, 12 |
| 36 | .cfi_rel_offset r8, 16 |
| 37 | .cfi_rel_offset r9, 20 |
| 38 | .cfi_rel_offset r10, 24 |
| 39 | .cfi_rel_offset r11, 28 |
| 40 | .cfi_rel_offset lr, 32 |
Andreas Gampe | 76914b0 | 2015-07-17 20:14:50 -0700 | [diff] [blame] | 41 | .endm |
| 42 | |
| 43 | /* |
| 44 | * Macro that sets up the callee save frame to conform with |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 45 | * Runtime::CreateCalleeSaveMethod(kSaveAllCalleeSaves) |
Andreas Gampe | 76914b0 | 2015-07-17 20:14:50 -0700 | [diff] [blame] | 46 | */ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 47 | .macro SETUP_SAVE_ALL_CALLEE_SAVES_FRAME rTemp |
Andreas Gampe | 76914b0 | 2015-07-17 20:14:50 -0700 | [diff] [blame] | 48 | SPILL_ALL_CALLEE_SAVE_GPRS @ 9 words (36 bytes) of callee saves. |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 49 | vpush {s16-s31} @ 16 words (64 bytes) of floats. |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 50 | .cfi_adjust_cfa_offset 64 |
| 51 | sub sp, #12 @ 3 words of space, bottom word will hold Method* |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 52 | .cfi_adjust_cfa_offset 12 |
Vladimir Marko | 3098c8c | 2016-06-14 17:43:17 +0100 | [diff] [blame] | 53 | RUNTIME_CURRENT1 \rTemp @ Load Runtime::Current into rTemp. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 54 | @ Load kSaveAllCalleeSaves Method* into rTemp. |
| 55 | ldr \rTemp, [\rTemp, #RUNTIME_SAVE_ALL_CALLEE_SAVES_METHOD_OFFSET] |
Vladimir Marko | 3098c8c | 2016-06-14 17:43:17 +0100 | [diff] [blame] | 56 | str \rTemp, [sp, #0] @ Place Method* at bottom of stack. |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 57 | str sp, [r9, #THREAD_TOP_QUICK_FRAME_OFFSET] @ Place sp in Thread::Current()->top_quick_frame. |
Andreas Gampe | 5c1e435 | 2014-04-21 19:28:24 -0700 | [diff] [blame] | 58 | |
| 59 | // Ugly compile-time check, but we only have the preprocessor. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 60 | #if (FRAME_SIZE_SAVE_ALL_CALLEE_SAVES != 36 + 64 + 12) |
| 61 | #error "FRAME_SIZE_SAVE_ALL_CALLEE_SAVES(ARM) size not as expected." |
Andreas Gampe | 5c1e435 | 2014-04-21 19:28:24 -0700 | [diff] [blame] | 62 | #endif |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 63 | .endm |
| 64 | |
| 65 | /* |
| 66 | * Macro that sets up the callee save frame to conform with |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 67 | * Runtime::CreateCalleeSaveMethod(kSaveRefsOnly). |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 68 | */ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 69 | .macro SETUP_SAVE_REFS_ONLY_FRAME rTemp |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 70 | push {r5-r8, r10-r11, lr} @ 7 words of callee saves |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 71 | .cfi_adjust_cfa_offset 28 |
| 72 | .cfi_rel_offset r5, 0 |
| 73 | .cfi_rel_offset r6, 4 |
| 74 | .cfi_rel_offset r7, 8 |
| 75 | .cfi_rel_offset r8, 12 |
| 76 | .cfi_rel_offset r10, 16 |
| 77 | .cfi_rel_offset r11, 20 |
| 78 | .cfi_rel_offset lr, 24 |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 79 | sub sp, #4 @ bottom word will hold Method* |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 80 | .cfi_adjust_cfa_offset 4 |
Vladimir Marko | 3098c8c | 2016-06-14 17:43:17 +0100 | [diff] [blame] | 81 | RUNTIME_CURRENT2 \rTemp @ Load Runtime::Current into rTemp. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 82 | @ Load kSaveRefsOnly Method* into rTemp. |
| 83 | ldr \rTemp, [\rTemp, #RUNTIME_SAVE_REFS_ONLY_METHOD_OFFSET] |
Vladimir Marko | 3098c8c | 2016-06-14 17:43:17 +0100 | [diff] [blame] | 84 | str \rTemp, [sp, #0] @ Place Method* at bottom of stack. |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 85 | str sp, [r9, #THREAD_TOP_QUICK_FRAME_OFFSET] @ Place sp in Thread::Current()->top_quick_frame. |
Andreas Gampe | 5c1e435 | 2014-04-21 19:28:24 -0700 | [diff] [blame] | 86 | |
| 87 | // Ugly compile-time check, but we only have the preprocessor. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 88 | #if (FRAME_SIZE_SAVE_REFS_ONLY != 28 + 4) |
| 89 | #error "FRAME_SIZE_SAVE_REFS_ONLY(ARM) size not as expected." |
Andreas Gampe | 5c1e435 | 2014-04-21 19:28:24 -0700 | [diff] [blame] | 90 | #endif |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 91 | .endm |
| 92 | |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 93 | .macro RESTORE_SAVE_REFS_ONLY_FRAME |
Mathieu Chartier | 2a6c7b7 | 2013-10-16 11:16:33 -0700 | [diff] [blame] | 94 | add sp, #4 @ bottom word holds Method* |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 95 | .cfi_adjust_cfa_offset -4 |
Mathieu Chartier | 2a6c7b7 | 2013-10-16 11:16:33 -0700 | [diff] [blame] | 96 | pop {r5-r8, r10-r11, lr} @ 7 words of callee saves |
Dave Allison | bbb32c2 | 2013-11-05 18:25:18 -0800 | [diff] [blame] | 97 | .cfi_restore r5 |
| 98 | .cfi_restore r6 |
| 99 | .cfi_restore r7 |
| 100 | .cfi_restore r8 |
| 101 | .cfi_restore r10 |
| 102 | .cfi_restore r11 |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 103 | .cfi_restore lr |
| 104 | .cfi_adjust_cfa_offset -28 |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 105 | .endm |
| 106 | |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 107 | .macro RESTORE_SAVE_REFS_ONLY_FRAME_AND_RETURN |
| 108 | RESTORE_SAVE_REFS_ONLY_FRAME |
Mathieu Chartier | 2a6c7b7 | 2013-10-16 11:16:33 -0700 | [diff] [blame] | 109 | bx lr @ return |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 110 | .endm |
| 111 | |
| 112 | /* |
| 113 | * Macro that sets up the callee save frame to conform with |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 114 | * Runtime::CreateCalleeSaveMethod(kSaveRefsAndArgs). |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 115 | */ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 116 | .macro SETUP_SAVE_REFS_AND_ARGS_FRAME_REGISTERS_ONLY |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 117 | push {r1-r3, r5-r8, r10-r11, lr} @ 10 words of callee saves and args. |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 118 | .cfi_adjust_cfa_offset 40 |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 119 | .cfi_rel_offset r1, 0 |
| 120 | .cfi_rel_offset r2, 4 |
| 121 | .cfi_rel_offset r3, 8 |
| 122 | .cfi_rel_offset r5, 12 |
| 123 | .cfi_rel_offset r6, 16 |
| 124 | .cfi_rel_offset r7, 20 |
| 125 | .cfi_rel_offset r8, 24 |
| 126 | .cfi_rel_offset r10, 28 |
| 127 | .cfi_rel_offset r11, 32 |
| 128 | .cfi_rel_offset lr, 36 |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 129 | vpush {s0-s15} @ 16 words of float args. |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 130 | .cfi_adjust_cfa_offset 64 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 131 | sub sp, #8 @ 2 words of space, alignment padding and Method* |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 132 | .cfi_adjust_cfa_offset 8 |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 133 | // Ugly compile-time check, but we only have the preprocessor. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 134 | #if (FRAME_SIZE_SAVE_REFS_AND_ARGS != 40 + 64 + 8) |
| 135 | #error "FRAME_SIZE_SAVE_REFS_AND_ARGS(ARM) size not as expected." |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 136 | #endif |
| 137 | .endm |
| 138 | |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 139 | .macro SETUP_SAVE_REFS_AND_ARGS_FRAME rTemp |
| 140 | SETUP_SAVE_REFS_AND_ARGS_FRAME_REGISTERS_ONLY |
Vladimir Marko | 3098c8c | 2016-06-14 17:43:17 +0100 | [diff] [blame] | 141 | RUNTIME_CURRENT3 \rTemp @ Load Runtime::Current into rTemp. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 142 | @ Load kSaveRefsAndArgs Method* into rTemp. |
| 143 | ldr \rTemp, [\rTemp, #RUNTIME_SAVE_REFS_AND_ARGS_METHOD_OFFSET] |
Vladimir Marko | 3098c8c | 2016-06-14 17:43:17 +0100 | [diff] [blame] | 144 | str \rTemp, [sp, #0] @ Place Method* at bottom of stack. |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 145 | str sp, [r9, #THREAD_TOP_QUICK_FRAME_OFFSET] @ Place sp in Thread::Current()->top_quick_frame. |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 146 | .endm |
| 147 | |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 148 | .macro SETUP_SAVE_REFS_AND_ARGS_FRAME_WITH_METHOD_IN_R0 |
| 149 | SETUP_SAVE_REFS_AND_ARGS_FRAME_REGISTERS_ONLY |
| 150 | str r0, [sp, #0] @ Store ArtMethod* to bottom of stack. |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 151 | str sp, [r9, #THREAD_TOP_QUICK_FRAME_OFFSET] @ Place sp in Thread::Current()->top_quick_frame. |
| 152 | .endm |
| 153 | |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 154 | .macro RESTORE_SAVE_REFS_AND_ARGS_FRAME |
Mathieu Chartier | 2a6c7b7 | 2013-10-16 11:16:33 -0700 | [diff] [blame] | 155 | add sp, #8 @ rewind sp |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 156 | .cfi_adjust_cfa_offset -8 |
| 157 | vpop {s0-s15} |
| 158 | .cfi_adjust_cfa_offset -64 |
Mathieu Chartier | 2a6c7b7 | 2013-10-16 11:16:33 -0700 | [diff] [blame] | 159 | pop {r1-r3, r5-r8, r10-r11, lr} @ 10 words of callee saves |
Dave Allison | bbb32c2 | 2013-11-05 18:25:18 -0800 | [diff] [blame] | 160 | .cfi_restore r1 |
| 161 | .cfi_restore r2 |
| 162 | .cfi_restore r3 |
| 163 | .cfi_restore r5 |
| 164 | .cfi_restore r6 |
| 165 | .cfi_restore r7 |
| 166 | .cfi_restore r8 |
| 167 | .cfi_restore r10 |
| 168 | .cfi_restore r11 |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 169 | .cfi_restore lr |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 170 | .cfi_adjust_cfa_offset -40 |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 171 | .endm |
| 172 | |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 173 | /* |
| 174 | * Macro that sets up the callee save frame to conform with |
| 175 | * Runtime::CreateCalleeSaveMethod(kSaveEverything) |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 176 | * when core registers are already saved. |
| 177 | */ |
| 178 | .macro SETUP_SAVE_EVERYTHING_FRAME_CORE_REGS_SAVED rTemp |
| 179 | @ 14 words of callee saves and args already saved. |
| 180 | vpush {d0-d15} @ 32 words, 2 for each of the 16 saved doubles. |
| 181 | .cfi_adjust_cfa_offset 128 |
| 182 | sub sp, #8 @ 2 words of space, alignment padding and Method* |
| 183 | .cfi_adjust_cfa_offset 8 |
| 184 | RUNTIME_CURRENT1 \rTemp @ Load Runtime::Current into rTemp. |
| 185 | @ Load kSaveEverything Method* into rTemp. |
| 186 | ldr \rTemp, [\rTemp, #RUNTIME_SAVE_EVERYTHING_METHOD_OFFSET] |
| 187 | str \rTemp, [sp, #0] @ Place Method* at bottom of stack. |
| 188 | str sp, [r9, #THREAD_TOP_QUICK_FRAME_OFFSET] @ Place sp in Thread::Current()->top_quick_frame. |
| 189 | |
| 190 | // Ugly compile-time check, but we only have the preprocessor. |
| 191 | #if (FRAME_SIZE_SAVE_EVERYTHING != 56 + 128 + 8) |
| 192 | #error "FRAME_SIZE_SAVE_EVERYTHING(ARM) size not as expected." |
| 193 | #endif |
| 194 | .endm |
| 195 | |
| 196 | /* |
| 197 | * Macro that sets up the callee save frame to conform with |
| 198 | * Runtime::CreateCalleeSaveMethod(kSaveEverything) |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 199 | */ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 200 | .macro SETUP_SAVE_EVERYTHING_FRAME rTemp |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 201 | push {r0-r12, lr} @ 14 words of callee saves and args. |
| 202 | .cfi_adjust_cfa_offset 56 |
| 203 | .cfi_rel_offset r0, 0 |
| 204 | .cfi_rel_offset r1, 4 |
| 205 | .cfi_rel_offset r2, 8 |
| 206 | .cfi_rel_offset r3, 12 |
| 207 | .cfi_rel_offset r4, 16 |
| 208 | .cfi_rel_offset r5, 20 |
| 209 | .cfi_rel_offset r6, 24 |
| 210 | .cfi_rel_offset r7, 28 |
| 211 | .cfi_rel_offset r8, 32 |
| 212 | .cfi_rel_offset r9, 36 |
| 213 | .cfi_rel_offset r10, 40 |
| 214 | .cfi_rel_offset r11, 44 |
| 215 | .cfi_rel_offset ip, 48 |
| 216 | .cfi_rel_offset lr, 52 |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 217 | SETUP_SAVE_EVERYTHING_FRAME_CORE_REGS_SAVED \rTemp |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 218 | .endm |
| 219 | |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 220 | .macro RESTORE_SAVE_EVERYTHING_FRAME |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 221 | add sp, #8 @ rewind sp |
| 222 | .cfi_adjust_cfa_offset -8 |
Vladimir Marko | de5f194 | 2016-08-10 12:30:05 +0100 | [diff] [blame] | 223 | vpop {d0-d15} |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 224 | .cfi_adjust_cfa_offset -128 |
| 225 | pop {r0-r12, lr} @ 14 words of callee saves |
| 226 | .cfi_restore r0 |
| 227 | .cfi_restore r1 |
| 228 | .cfi_restore r2 |
| 229 | .cfi_restore r3 |
| 230 | .cfi_restore r5 |
| 231 | .cfi_restore r6 |
| 232 | .cfi_restore r7 |
| 233 | .cfi_restore r8 |
| 234 | .cfi_restore r9 |
| 235 | .cfi_restore r10 |
| 236 | .cfi_restore r11 |
| 237 | .cfi_restore r12 |
| 238 | .cfi_restore lr |
| 239 | .cfi_adjust_cfa_offset -56 |
| 240 | .endm |
| 241 | |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 242 | .macro RESTORE_SAVE_EVERYTHING_FRAME_KEEP_R0 |
| 243 | add sp, #8 @ rewind sp |
| 244 | .cfi_adjust_cfa_offset -8 |
| 245 | vpop {d0-d15} |
| 246 | .cfi_adjust_cfa_offset -128 |
| 247 | add sp, #4 @ skip r0 |
| 248 | .cfi_adjust_cfa_offset -4 |
| 249 | .cfi_restore r0 @ debugger can no longer restore caller's r0 |
| 250 | pop {r1-r12, lr} @ 13 words of callee saves |
| 251 | .cfi_restore r1 |
| 252 | .cfi_restore r2 |
| 253 | .cfi_restore r3 |
| 254 | .cfi_restore r5 |
| 255 | .cfi_restore r6 |
| 256 | .cfi_restore r7 |
| 257 | .cfi_restore r8 |
| 258 | .cfi_restore r9 |
| 259 | .cfi_restore r10 |
| 260 | .cfi_restore r11 |
| 261 | .cfi_restore r12 |
| 262 | .cfi_restore lr |
| 263 | .cfi_adjust_cfa_offset -52 |
| 264 | .endm |
| 265 | |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 266 | .macro RETURN_IF_RESULT_IS_ZERO |
| 267 | cbnz r0, 1f @ result non-zero branch over |
| 268 | bx lr @ return |
| 269 | 1: |
| 270 | .endm |
| 271 | |
| 272 | .macro RETURN_IF_RESULT_IS_NON_ZERO |
| 273 | cbz r0, 1f @ result zero branch over |
| 274 | bx lr @ return |
| 275 | 1: |
| 276 | .endm |
| 277 | |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 278 | /* |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 279 | * Macro that calls through to artDeliverPendingExceptionFromCode, where the pending |
| 280 | * exception is Thread::Current()->exception_ when the runtime method frame is ready. |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 281 | */ |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 282 | .macro DELIVER_PENDING_EXCEPTION_FRAME_READY |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 283 | mov r0, r9 @ pass Thread::Current |
Vladimir Marko | 908eb22 | 2016-09-14 10:29:18 +0100 | [diff] [blame] | 284 | bl artDeliverPendingExceptionFromCode @ artDeliverPendingExceptionFromCode(Thread*) |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 285 | .endm |
| 286 | |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 287 | /* |
| 288 | * Macro that calls through to artDeliverPendingExceptionFromCode, where the pending |
| 289 | * exception is Thread::Current()->exception_. |
| 290 | */ |
| 291 | .macro DELIVER_PENDING_EXCEPTION |
| 292 | SETUP_SAVE_ALL_CALLEE_SAVES_FRAME r0 @ save callee saves for throw |
| 293 | DELIVER_PENDING_EXCEPTION_FRAME_READY |
| 294 | .endm |
| 295 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 296 | .macro NO_ARG_RUNTIME_EXCEPTION c_name, cxx_name |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 297 | .extern \cxx_name |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 298 | ENTRY \c_name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 299 | SETUP_SAVE_ALL_CALLEE_SAVES_FRAME r0 @ save all registers as basis for long jump context |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 300 | mov r0, r9 @ pass Thread::Current |
Vladimir Marko | 908eb22 | 2016-09-14 10:29:18 +0100 | [diff] [blame] | 301 | bl \cxx_name @ \cxx_name(Thread*) |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 302 | END \c_name |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 303 | .endm |
buzbee | 44b412b | 2012-02-04 08:50:53 -0800 | [diff] [blame] | 304 | |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 305 | .macro NO_ARG_RUNTIME_EXCEPTION_SAVE_EVERYTHING c_name, cxx_name |
| 306 | .extern \cxx_name |
| 307 | ENTRY \c_name |
| 308 | SETUP_SAVE_EVERYTHING_FRAME r0 @ save all registers as basis for long jump context |
| 309 | mov r0, r9 @ pass Thread::Current |
| 310 | bl \cxx_name @ \cxx_name(Thread*) |
| 311 | END \c_name |
| 312 | .endm |
| 313 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 314 | .macro ONE_ARG_RUNTIME_EXCEPTION c_name, cxx_name |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 315 | .extern \cxx_name |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 316 | ENTRY \c_name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 317 | SETUP_SAVE_ALL_CALLEE_SAVES_FRAME r1 @ save all registers as basis for long jump context |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 318 | mov r1, r9 @ pass Thread::Current |
Vladimir Marko | 908eb22 | 2016-09-14 10:29:18 +0100 | [diff] [blame] | 319 | bl \cxx_name @ \cxx_name(Thread*) |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 320 | END \c_name |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 321 | .endm |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 322 | |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 323 | .macro TWO_ARG_RUNTIME_EXCEPTION_SAVE_EVERYTHING c_name, cxx_name |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 324 | .extern \cxx_name |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 325 | ENTRY \c_name |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 326 | SETUP_SAVE_EVERYTHING_FRAME r2 @ save all registers as basis for long jump context |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 327 | mov r2, r9 @ pass Thread::Current |
Vladimir Marko | 908eb22 | 2016-09-14 10:29:18 +0100 | [diff] [blame] | 328 | bl \cxx_name @ \cxx_name(Thread*) |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 329 | END \c_name |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 330 | .endm |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 331 | |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 332 | .macro RETURN_OR_DELIVER_PENDING_EXCEPTION_REG reg |
| 333 | ldr \reg, [r9, #THREAD_EXCEPTION_OFFSET] // Get exception field. |
| 334 | cbnz \reg, 1f |
| 335 | bx lr |
| 336 | 1: |
| 337 | DELIVER_PENDING_EXCEPTION |
| 338 | .endm |
| 339 | |
| 340 | .macro RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 341 | RETURN_OR_DELIVER_PENDING_EXCEPTION_REG r1 |
| 342 | .endm |
| 343 | |
| 344 | .macro RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
| 345 | RETURN_IF_RESULT_IS_ZERO |
| 346 | DELIVER_PENDING_EXCEPTION |
| 347 | .endm |
| 348 | |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 349 | .macro RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| 350 | RETURN_IF_RESULT_IS_NON_ZERO |
| 351 | DELIVER_PENDING_EXCEPTION |
| 352 | .endm |
| 353 | |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 354 | // Macros taking opportunity of code similarities for downcalls with referrer for non-wide fields. |
| 355 | .macro ONE_ARG_REF_DOWNCALL name, entrypoint, return |
| 356 | .extern \entrypoint |
| 357 | ENTRY \name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 358 | SETUP_SAVE_REFS_ONLY_FRAME r1 @ save callee saves in case of GC |
| 359 | ldr r1, [sp, #FRAME_SIZE_SAVE_REFS_ONLY] @ pass referrer |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 360 | mov r2, r9 @ pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 361 | bl \entrypoint @ (uint32_t field_idx, const Method* referrer, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 362 | RESTORE_SAVE_REFS_ONLY_FRAME |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 363 | \return |
| 364 | END \name |
| 365 | .endm |
| 366 | |
| 367 | .macro TWO_ARG_REF_DOWNCALL name, entrypoint, return |
| 368 | .extern \entrypoint |
| 369 | ENTRY \name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 370 | SETUP_SAVE_REFS_ONLY_FRAME r2 @ save callee saves in case of GC |
| 371 | ldr r2, [sp, #FRAME_SIZE_SAVE_REFS_ONLY] @ pass referrer |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 372 | mov r3, r9 @ pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 373 | bl \entrypoint @ (field_idx, Object*, referrer, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 374 | RESTORE_SAVE_REFS_ONLY_FRAME |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 375 | \return |
| 376 | END \name |
| 377 | .endm |
| 378 | |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 379 | .macro THREE_ARG_REF_DOWNCALL name, entrypoint, return |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 380 | .extern \entrypoint |
| 381 | ENTRY \name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 382 | SETUP_SAVE_REFS_ONLY_FRAME r3 @ save callee saves in case of GC |
| 383 | ldr r3, [sp, #FRAME_SIZE_SAVE_REFS_ONLY] @ pass referrer |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 384 | str r9, [sp, #-16]! @ expand the frame and pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 385 | .cfi_adjust_cfa_offset 16 |
| 386 | bl \entrypoint @ (field_idx, Object*, new_val, referrer, Thread*) |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 387 | add sp, #16 @ release out args |
| 388 | .cfi_adjust_cfa_offset -16 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 389 | RESTORE_SAVE_REFS_ONLY_FRAME @ TODO: we can clearly save an add here |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 390 | \return |
| 391 | END \name |
| 392 | .endm |
| 393 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 394 | /* |
| 395 | * Called by managed code, saves callee saves and then calls artThrowException |
| 396 | * that will place a mock Method* at the bottom of the stack. Arg1 holds the exception. |
| 397 | */ |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 398 | ONE_ARG_RUNTIME_EXCEPTION art_quick_deliver_exception, artDeliverExceptionFromCode |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 399 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 400 | /* |
| 401 | * Called by managed code to create and deliver a NullPointerException. |
| 402 | */ |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 403 | NO_ARG_RUNTIME_EXCEPTION_SAVE_EVERYTHING art_quick_throw_null_pointer_exception, artThrowNullPointerExceptionFromCode |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 404 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 405 | /* |
Nicolas Geoffray | e8e1127 | 2016-06-28 18:08:46 +0100 | [diff] [blame] | 406 | * Call installed by a signal handler to create and deliver a NullPointerException. |
| 407 | */ |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 408 | .extern art_quick_throw_null_pointer_exception_from_signal |
| 409 | ENTRY art_quick_throw_null_pointer_exception_from_signal |
| 410 | // The fault handler pushes the gc map address, i.e. "return address", to stack |
| 411 | // and passes the fault address in LR. So we need to set up the CFI info accordingly. |
| 412 | .cfi_def_cfa_offset __SIZEOF_POINTER__ |
| 413 | .cfi_rel_offset lr, 0 |
| 414 | push {r0-r12} @ 13 words of callee saves and args; LR already saved. |
| 415 | .cfi_adjust_cfa_offset 52 |
| 416 | .cfi_rel_offset r0, 0 |
| 417 | .cfi_rel_offset r1, 4 |
| 418 | .cfi_rel_offset r2, 8 |
| 419 | .cfi_rel_offset r3, 12 |
| 420 | .cfi_rel_offset r4, 16 |
| 421 | .cfi_rel_offset r5, 20 |
| 422 | .cfi_rel_offset r6, 24 |
| 423 | .cfi_rel_offset r7, 28 |
| 424 | .cfi_rel_offset r8, 32 |
| 425 | .cfi_rel_offset r9, 36 |
| 426 | .cfi_rel_offset r10, 40 |
| 427 | .cfi_rel_offset r11, 44 |
| 428 | .cfi_rel_offset ip, 48 |
| 429 | |
| 430 | @ save all registers as basis for long jump context |
| 431 | SETUP_SAVE_EVERYTHING_FRAME_CORE_REGS_SAVED r1 |
| 432 | mov r0, lr @ pass the fault address stored in LR by the fault handler. |
| 433 | mov r1, r9 @ pass Thread::Current |
Vladimir Marko | 908eb22 | 2016-09-14 10:29:18 +0100 | [diff] [blame] | 434 | bl artThrowNullPointerExceptionFromSignal @ (Thread*) |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 435 | END art_quick_throw_null_pointer_exception_from_signal |
Nicolas Geoffray | e8e1127 | 2016-06-28 18:08:46 +0100 | [diff] [blame] | 436 | |
| 437 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 438 | * Called by managed code to create and deliver an ArithmeticException. |
| 439 | */ |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 440 | NO_ARG_RUNTIME_EXCEPTION_SAVE_EVERYTHING art_quick_throw_div_zero, artThrowDivZeroFromCode |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 441 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 442 | /* |
| 443 | * Called by managed code to create and deliver an ArrayIndexOutOfBoundsException. Arg1 holds |
| 444 | * index, arg2 holds limit. |
| 445 | */ |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 446 | TWO_ARG_RUNTIME_EXCEPTION_SAVE_EVERYTHING art_quick_throw_array_bounds, artThrowArrayBoundsFromCode |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 447 | |
| 448 | /* |
Vladimir Marko | 87f3fcb | 2016-04-28 15:52:11 +0100 | [diff] [blame] | 449 | * Called by managed code to create and deliver a StringIndexOutOfBoundsException |
| 450 | * as if thrown from a call to String.charAt(). Arg1 holds index, arg2 holds limit. |
| 451 | */ |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 452 | TWO_ARG_RUNTIME_EXCEPTION_SAVE_EVERYTHING art_quick_throw_string_bounds, artThrowStringBoundsFromCode |
Vladimir Marko | 87f3fcb | 2016-04-28 15:52:11 +0100 | [diff] [blame] | 453 | |
| 454 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 455 | * Called by managed code to create and deliver a StackOverflowError. |
| 456 | */ |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 457 | NO_ARG_RUNTIME_EXCEPTION art_quick_throw_stack_overflow, artThrowStackOverflowFromCode |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 458 | |
| 459 | /* |
Ian Rogers | c8b306f | 2012-02-17 21:34:44 -0800 | [diff] [blame] | 460 | * All generated callsites for interface invokes and invocation slow paths will load arguments |
| 461 | * as usual - except instead of loading arg0/r0 with the target Method*, arg0/r0 will contain |
Nicolas Geoffray | 7ea6a17 | 2015-05-19 18:58:54 +0100 | [diff] [blame] | 462 | * the method_idx. This wrapper will save arg1-arg3, and call the appropriate C helper. |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 463 | * NOTE: "this" is first visible argument of the target, and so can be found in arg1/r1. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 464 | * |
Ian Rogers | c8b306f | 2012-02-17 21:34:44 -0800 | [diff] [blame] | 465 | * The helper will attempt to locate the target and return a 64-bit result in r0/r1 consisting |
| 466 | * of the target Method* in r0 and method->code_ in r1. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 467 | * |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 468 | * If unsuccessful, the helper will return null/null. There will bea pending exception in the |
Ian Rogers | c8b306f | 2012-02-17 21:34:44 -0800 | [diff] [blame] | 469 | * thread and we branch to another stub to deliver it. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 470 | * |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 471 | * On success this wrapper will restore arguments and *jump* to the target, leaving the lr |
| 472 | * pointing back to the original caller. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 473 | */ |
Andreas Gampe | 3031c8d | 2015-07-13 20:11:06 -0700 | [diff] [blame] | 474 | .macro INVOKE_TRAMPOLINE_BODY cxx_name |
Ian Rogers | c8b306f | 2012-02-17 21:34:44 -0800 | [diff] [blame] | 475 | .extern \cxx_name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 476 | SETUP_SAVE_REFS_AND_ARGS_FRAME r2 @ save callee saves in case allocation triggers GC |
Nicolas Geoffray | 7ea6a17 | 2015-05-19 18:58:54 +0100 | [diff] [blame] | 477 | mov r2, r9 @ pass Thread::Current |
| 478 | mov r3, sp |
Andreas Gampe | 3031c8d | 2015-07-13 20:11:06 -0700 | [diff] [blame] | 479 | bl \cxx_name @ (method_idx, this, Thread*, SP) |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 480 | mov r12, r1 @ save Method*->code_ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 481 | RESTORE_SAVE_REFS_AND_ARGS_FRAME |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 482 | cbz r0, 1f @ did we find the target? if not go to exception delivery |
| 483 | bx r12 @ tail call to target |
| 484 | 1: |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 485 | DELIVER_PENDING_EXCEPTION |
Andreas Gampe | 3031c8d | 2015-07-13 20:11:06 -0700 | [diff] [blame] | 486 | .endm |
| 487 | .macro INVOKE_TRAMPOLINE c_name, cxx_name |
| 488 | ENTRY \c_name |
| 489 | INVOKE_TRAMPOLINE_BODY \cxx_name |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 490 | END \c_name |
Ian Rogers | c8b306f | 2012-02-17 21:34:44 -0800 | [diff] [blame] | 491 | .endm |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 492 | |
Logan Chien | 8dbb708 | 2013-01-25 20:31:17 +0800 | [diff] [blame] | 493 | INVOKE_TRAMPOLINE art_quick_invoke_interface_trampoline_with_access_check, artInvokeInterfaceTrampolineWithAccessCheck |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 494 | |
Logan Chien | 8dbb708 | 2013-01-25 20:31:17 +0800 | [diff] [blame] | 495 | INVOKE_TRAMPOLINE art_quick_invoke_static_trampoline_with_access_check, artInvokeStaticTrampolineWithAccessCheck |
| 496 | INVOKE_TRAMPOLINE art_quick_invoke_direct_trampoline_with_access_check, artInvokeDirectTrampolineWithAccessCheck |
| 497 | INVOKE_TRAMPOLINE art_quick_invoke_super_trampoline_with_access_check, artInvokeSuperTrampolineWithAccessCheck |
| 498 | INVOKE_TRAMPOLINE art_quick_invoke_virtual_trampoline_with_access_check, artInvokeVirtualTrampolineWithAccessCheck |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 499 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 500 | /* |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 501 | * Quick invocation stub internal. |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 502 | * On entry: |
| 503 | * r0 = method pointer |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 504 | * r1 = argument array or null for no argument methods |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 505 | * r2 = size of argument array in bytes |
| 506 | * r3 = (managed) thread pointer |
| 507 | * [sp] = JValue* result |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 508 | * [sp + 4] = result_in_float |
| 509 | * [sp + 8] = core register argument array |
| 510 | * [sp + 12] = fp register argument array |
| 511 | * +-------------------------+ |
| 512 | * | uint32_t* fp_reg_args | |
| 513 | * | uint32_t* core_reg_args | |
| 514 | * | result_in_float | <- Caller frame |
| 515 | * | Jvalue* result | |
| 516 | * +-------------------------+ |
| 517 | * | lr | |
| 518 | * | r11 | |
| 519 | * | r9 | |
| 520 | * | r4 | <- r11 |
| 521 | * +-------------------------+ |
| 522 | * | uint32_t out[n-1] | |
| 523 | * | : : | Outs |
| 524 | * | uint32_t out[0] | |
| 525 | * | StackRef<ArtMethod> | <- SP value=null |
| 526 | * +-------------------------+ |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 527 | */ |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 528 | ENTRY art_quick_invoke_stub_internal |
Andreas Gampe | 76914b0 | 2015-07-17 20:14:50 -0700 | [diff] [blame] | 529 | SPILL_ALL_CALLEE_SAVE_GPRS @ spill regs (9) |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 530 | mov r11, sp @ save the stack pointer |
| 531 | .cfi_def_cfa_register r11 |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 532 | |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 533 | mov r9, r3 @ move managed thread pointer into r9 |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 534 | |
| 535 | add r4, r2, #4 @ create space for method pointer in frame |
| 536 | sub r4, sp, r4 @ reserve & align *stack* to 16 bytes: native calling |
| 537 | and r4, #0xFFFFFFF0 @ convention only aligns to 8B, so we have to ensure ART |
| 538 | mov sp, r4 @ 16B alignment ourselves. |
| 539 | |
| 540 | mov r4, r0 @ save method* |
| 541 | add r0, sp, #4 @ pass stack pointer + method ptr as dest for memcpy |
| 542 | bl memcpy @ memcpy (dest, src, bytes) |
| 543 | mov ip, #0 @ set ip to 0 |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 544 | str ip, [sp] @ store null for method* at bottom of frame |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 545 | |
Nicolas Geoffray | 4808846 | 2014-12-12 10:29:38 +0000 | [diff] [blame] | 546 | ldr ip, [r11, #48] @ load fp register argument array pointer |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 547 | vldm ip, {s0-s15} @ copy s0 - s15 |
| 548 | |
Nicolas Geoffray | 4808846 | 2014-12-12 10:29:38 +0000 | [diff] [blame] | 549 | ldr ip, [r11, #44] @ load core register argument array pointer |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 550 | mov r0, r4 @ restore method* |
| 551 | add ip, ip, #4 @ skip r0 |
| 552 | ldm ip, {r1-r3} @ copy r1 - r3 |
| 553 | |
Wei Jin | 04f4d8a | 2014-05-29 18:04:29 -0700 | [diff] [blame] | 554 | #ifdef ARM_R4_SUSPEND_FLAG |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 555 | mov r4, #SUSPEND_CHECK_INTERVAL @ reset r4 to suspend check interval |
Wei Jin | 04f4d8a | 2014-05-29 18:04:29 -0700 | [diff] [blame] | 556 | #endif |
Andreas Gampe | 6e49869 | 2014-08-18 16:43:12 -0700 | [diff] [blame] | 557 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 558 | ldr ip, [r0, #ART_METHOD_QUICK_CODE_OFFSET_32] @ get pointer to the code |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 559 | blx ip @ call the method |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 560 | |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 561 | mov sp, r11 @ restore the stack pointer |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 562 | .cfi_def_cfa_register sp |
| 563 | |
Nicolas Geoffray | 4808846 | 2014-12-12 10:29:38 +0000 | [diff] [blame] | 564 | ldr r4, [sp, #40] @ load result_is_float |
| 565 | ldr r9, [sp, #36] @ load the result pointer |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 566 | cmp r4, #0 |
| 567 | ite eq |
| 568 | strdeq r0, [r9] @ store r0/r1 into result pointer |
| 569 | vstrne d0, [r9] @ store s0-s1/d0 into result pointer |
| 570 | |
Nicolas Geoffray | 4808846 | 2014-12-12 10:29:38 +0000 | [diff] [blame] | 571 | pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} @ restore spill regs |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 572 | END art_quick_invoke_stub_internal |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 573 | |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 574 | /* |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 575 | * On stack replacement stub. |
| 576 | * On entry: |
| 577 | * r0 = stack to copy |
| 578 | * r1 = size of stack |
| 579 | * r2 = pc to call |
| 580 | * r3 = JValue* result |
| 581 | * [sp] = shorty |
| 582 | * [sp + 4] = thread |
| 583 | */ |
| 584 | ENTRY art_quick_osr_stub |
| 585 | SPILL_ALL_CALLEE_SAVE_GPRS @ Spill regs (9) |
| 586 | mov r11, sp @ Save the stack pointer |
| 587 | mov r10, r1 @ Save size of stack |
| 588 | ldr r9, [r11, #40] @ Move managed thread pointer into r9 |
| 589 | mov r8, r2 @ Save the pc to call |
Nicolas Geoffray | d9994f0 | 2016-02-11 17:35:55 +0000 | [diff] [blame] | 590 | sub r7, sp, #12 @ Reserve space for stack pointer, |
| 591 | @ JValue* result, and ArtMethod* slot. |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 592 | and r7, #0xFFFFFFF0 @ Align stack pointer |
| 593 | mov sp, r7 @ Update stack pointer |
| 594 | str r11, [sp, #4] @ Save old stack pointer |
Nicolas Geoffray | d9994f0 | 2016-02-11 17:35:55 +0000 | [diff] [blame] | 595 | str r3, [sp, #8] @ Save JValue* result |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 596 | mov ip, #0 |
| 597 | str ip, [sp] @ Store null for ArtMethod* at bottom of frame |
| 598 | sub sp, sp, r1 @ Reserve space for callee stack |
| 599 | mov r2, r1 |
| 600 | mov r1, r0 |
| 601 | mov r0, sp |
| 602 | bl memcpy @ memcpy (dest r0, src r1, bytes r2) |
| 603 | bl .Losr_entry @ Call the method |
Nicolas Geoffray | d9994f0 | 2016-02-11 17:35:55 +0000 | [diff] [blame] | 604 | ldr r10, [sp, #8] @ Restore JValue* result |
| 605 | ldr sp, [sp, #4] @ Restore saved stack pointer |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 606 | ldr r4, [sp, #36] @ load shorty |
Nicolas Geoffray | d9bc433 | 2016-02-05 23:32:25 +0000 | [diff] [blame] | 607 | ldrb r4, [r4, #0] @ load return type |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 608 | cmp r4, #68 @ Test if result type char == 'D'. |
| 609 | beq .Losr_fp_result |
| 610 | cmp r4, #70 @ Test if result type char == 'F'. |
| 611 | beq .Losr_fp_result |
| 612 | strd r0, [r10] @ Store r0/r1 into result pointer |
| 613 | b .Losr_exit |
| 614 | .Losr_fp_result: |
| 615 | vstr d0, [r10] @ Store s0-s1/d0 into result pointer |
| 616 | .Losr_exit: |
| 617 | pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} |
| 618 | .Losr_entry: |
| 619 | sub r10, r10, #4 |
| 620 | str lr, [sp, r10] @ Store link register per the compiler ABI |
| 621 | bx r8 |
| 622 | END art_quick_osr_stub |
| 623 | |
| 624 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 625 | * On entry r0 is uint32_t* gprs_ and r1 is uint32_t* fprs_ |
| 626 | */ |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 627 | ARM_ENTRY art_quick_do_long_jump |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 628 | vldm r1, {s0-s31} @ load all fprs from argument fprs_ |
| 629 | ldr r2, [r0, #60] @ r2 = r15 (PC from gprs_ 60=4*15) |
Jeff Hao | 467f816 | 2014-08-05 18:59:16 -0700 | [diff] [blame] | 630 | ldr r14, [r0, #56] @ (LR from gprs_ 56=4*14) |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 631 | add r0, r0, #12 @ increment r0 to skip gprs_[0..2] 12=4*3 |
Jeff Hao | 467f816 | 2014-08-05 18:59:16 -0700 | [diff] [blame] | 632 | ldm r0, {r3-r13} @ load remaining gprs from argument gprs_ |
Andreas Gampe | 639bdd1 | 2015-06-03 11:22:45 -0700 | [diff] [blame] | 633 | ldr r0, [r0, #-12] @ load r0 value |
| 634 | mov r1, #0 @ clear result register r1 |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 635 | bx r2 @ do long jump |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 636 | END art_quick_do_long_jump |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 637 | |
Ian Rogers | 60db5ab | 2012-02-20 17:02:00 -0800 | [diff] [blame] | 638 | /* |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 639 | * Entry from managed code that calls artHandleFillArrayDataFromCode and delivers exception on |
| 640 | * failure. |
| 641 | */ |
Ian Rogers | 832336b | 2014-10-08 15:35:22 -0700 | [diff] [blame] | 642 | TWO_ARG_REF_DOWNCALL art_quick_handle_fill_data, artHandleFillArrayDataFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 643 | |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 644 | /* |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 645 | * Entry from managed code that calls artLockObjectFromCode, may block for GC. r0 holds the |
| 646 | * possibly null object to lock. |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 647 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 648 | .extern artLockObjectFromCode |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 649 | ENTRY art_quick_lock_object |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 650 | cbz r0, .Lslow_lock |
| 651 | .Lretry_lock: |
Mathieu Chartier | 4e6a31e | 2013-10-31 10:35:05 -0700 | [diff] [blame] | 652 | ldr r2, [r9, #THREAD_ID_OFFSET] |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 653 | ldrex r1, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 654 | mov r3, r1 |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 655 | and r3, #LOCK_WORD_GC_STATE_MASK_SHIFTED_TOGGLED @ zero the gc bits |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 656 | cbnz r3, .Lnot_unlocked @ already thin locked |
| 657 | @ unlocked case - r1: original lock word that's zero except for the read barrier bits. |
| 658 | orr r2, r1, r2 @ r2 holds thread id with count of 0 with preserved read barrier bits |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 659 | strex r3, r2, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 660 | cbnz r3, .Llock_strex_fail @ store failed, retry |
Andreas Gampe | 675967d | 2014-05-14 16:28:34 -0700 | [diff] [blame] | 661 | dmb ish @ full (LoadLoad|LoadStore) memory barrier |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 662 | bx lr |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 663 | .Lnot_unlocked: @ r1: original lock word, r2: thread_id with count of 0 and zero read barrier bits |
| 664 | lsr r3, r1, LOCK_WORD_STATE_SHIFT |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 665 | cbnz r3, .Lslow_lock @ if either of the top two bits are set, go slow path |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 666 | eor r2, r1, r2 @ lock_word.ThreadId() ^ self->ThreadId() |
| 667 | uxth r2, r2 @ zero top 16 bits |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 668 | cbnz r2, .Lslow_lock @ lock word and self thread id's match -> recursive lock |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 669 | @ else contention, go to slow path |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 670 | mov r3, r1 @ copy the lock word to check count overflow. |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 671 | and r3, #LOCK_WORD_GC_STATE_MASK_SHIFTED_TOGGLED @ zero the gc bits. |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 672 | add r2, r3, #LOCK_WORD_THIN_LOCK_COUNT_ONE @ increment count in lock word placing in r2 to check overflow |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 673 | lsr r3, r2, #LOCK_WORD_GC_STATE_SHIFT @ if the first gc state bit is set, we overflowed. |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 674 | cbnz r3, .Lslow_lock @ if we overflow the count go slow path |
| 675 | add r2, r1, #LOCK_WORD_THIN_LOCK_COUNT_ONE @ increment count for real |
| 676 | strex r3, r2, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] @ strex necessary for read barrier bits |
| 677 | cbnz r3, .Llock_strex_fail @ strex failed, retry |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 678 | bx lr |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 679 | .Llock_strex_fail: |
| 680 | b .Lretry_lock @ retry |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 681 | .Lslow_lock: |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 682 | SETUP_SAVE_REFS_ONLY_FRAME r1 @ save callee saves in case we block |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 683 | mov r1, r9 @ pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 684 | bl artLockObjectFromCode @ (Object* obj, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 685 | RESTORE_SAVE_REFS_ONLY_FRAME |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 686 | RETURN_IF_RESULT_IS_ZERO |
| 687 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 688 | END art_quick_lock_object |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 689 | |
Andreas Gampe | c7ed09b | 2016-04-25 20:08:55 -0700 | [diff] [blame] | 690 | ENTRY art_quick_lock_object_no_inline |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 691 | SETUP_SAVE_REFS_ONLY_FRAME r1 @ save callee saves in case we block |
Andreas Gampe | c7ed09b | 2016-04-25 20:08:55 -0700 | [diff] [blame] | 692 | mov r1, r9 @ pass Thread::Current |
| 693 | bl artLockObjectFromCode @ (Object* obj, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 694 | RESTORE_SAVE_REFS_ONLY_FRAME |
Andreas Gampe | c7ed09b | 2016-04-25 20:08:55 -0700 | [diff] [blame] | 695 | RETURN_IF_RESULT_IS_ZERO |
| 696 | DELIVER_PENDING_EXCEPTION |
| 697 | END art_quick_lock_object_no_inline |
| 698 | |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 699 | /* |
| 700 | * Entry from managed code that calls artUnlockObjectFromCode and delivers exception on failure. |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 701 | * r0 holds the possibly null object to lock. |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 702 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 703 | .extern artUnlockObjectFromCode |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 704 | ENTRY art_quick_unlock_object |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 705 | cbz r0, .Lslow_unlock |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 706 | .Lretry_unlock: |
| 707 | #ifndef USE_READ_BARRIER |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 708 | ldr r1, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 709 | #else |
| 710 | ldrex r1, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] @ Need to use atomic instructions for read barrier |
| 711 | #endif |
| 712 | lsr r2, r1, #LOCK_WORD_STATE_SHIFT |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 713 | cbnz r2, .Lslow_unlock @ if either of the top two bits are set, go slow path |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 714 | ldr r2, [r9, #THREAD_ID_OFFSET] |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 715 | mov r3, r1 @ copy lock word to check thread id equality |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 716 | and r3, #LOCK_WORD_GC_STATE_MASK_SHIFTED_TOGGLED @ zero the gc bits |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 717 | eor r3, r3, r2 @ lock_word.ThreadId() ^ self->ThreadId() |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 718 | uxth r3, r3 @ zero top 16 bits |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 719 | cbnz r3, .Lslow_unlock @ do lock word and self thread id's match? |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 720 | mov r3, r1 @ copy lock word to detect transition to unlocked |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 721 | and r3, #LOCK_WORD_GC_STATE_MASK_SHIFTED_TOGGLED @ zero the gc bits |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 722 | cmp r3, #LOCK_WORD_THIN_LOCK_COUNT_ONE |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 723 | bpl .Lrecursive_thin_unlock |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 724 | @ transition to unlocked |
| 725 | mov r3, r1 |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 726 | and r3, #LOCK_WORD_GC_STATE_MASK_SHIFTED @ r3: zero except for the preserved gc bits |
Andreas Gampe | 675967d | 2014-05-14 16:28:34 -0700 | [diff] [blame] | 727 | dmb ish @ full (LoadStore|StoreStore) memory barrier |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 728 | #ifndef USE_READ_BARRIER |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 729 | str r3, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 730 | #else |
| 731 | strex r2, r3, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] @ strex necessary for read barrier bits |
| 732 | cbnz r2, .Lunlock_strex_fail @ store failed, retry |
| 733 | #endif |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 734 | bx lr |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 735 | .Lrecursive_thin_unlock: @ r1: original lock word |
| 736 | sub r1, r1, #LOCK_WORD_THIN_LOCK_COUNT_ONE @ decrement count |
| 737 | #ifndef USE_READ_BARRIER |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 738 | str r1, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 739 | #else |
| 740 | strex r2, r1, [r0, #MIRROR_OBJECT_LOCK_WORD_OFFSET] @ strex necessary for read barrier bits |
| 741 | cbnz r2, .Lunlock_strex_fail @ store failed, retry |
| 742 | #endif |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 743 | bx lr |
Hiroshi Yamauchi | e15ea08 | 2015-02-09 17:11:42 -0800 | [diff] [blame] | 744 | .Lunlock_strex_fail: |
| 745 | b .Lretry_unlock @ retry |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 746 | .Lslow_unlock: |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 747 | @ save callee saves in case exception allocation triggers GC |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 748 | SETUP_SAVE_REFS_ONLY_FRAME r1 |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 749 | mov r1, r9 @ pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 750 | bl artUnlockObjectFromCode @ (Object* obj, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 751 | RESTORE_SAVE_REFS_ONLY_FRAME |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 752 | RETURN_IF_RESULT_IS_ZERO |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 753 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 754 | END art_quick_unlock_object |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 755 | |
Andreas Gampe | c7ed09b | 2016-04-25 20:08:55 -0700 | [diff] [blame] | 756 | ENTRY art_quick_unlock_object_no_inline |
| 757 | @ save callee saves in case exception allocation triggers GC |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 758 | SETUP_SAVE_REFS_ONLY_FRAME r1 |
Andreas Gampe | c7ed09b | 2016-04-25 20:08:55 -0700 | [diff] [blame] | 759 | mov r1, r9 @ pass Thread::Current |
| 760 | bl artUnlockObjectFromCode @ (Object* obj, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 761 | RESTORE_SAVE_REFS_ONLY_FRAME |
Andreas Gampe | c7ed09b | 2016-04-25 20:08:55 -0700 | [diff] [blame] | 762 | RETURN_IF_RESULT_IS_ZERO |
| 763 | DELIVER_PENDING_EXCEPTION |
| 764 | END art_quick_unlock_object_no_inline |
| 765 | |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 766 | /* |
Mathieu Chartier | b99f4d6 | 2016-11-07 16:17:26 -0800 | [diff] [blame] | 767 | * Entry from managed code that calls artInstanceOfFromCode and on failure calls |
| 768 | * artThrowClassCastExceptionForObject. |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 769 | */ |
Mathieu Chartier | b99f4d6 | 2016-11-07 16:17:26 -0800 | [diff] [blame] | 770 | .extern artInstanceOfFromCode |
| 771 | .extern artThrowClassCastExceptionForObject |
| 772 | ENTRY art_quick_check_instance_of |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 773 | push {r0-r1, lr} @ save arguments, link register and pad |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 774 | .cfi_adjust_cfa_offset 12 |
| 775 | .cfi_rel_offset r0, 0 |
| 776 | .cfi_rel_offset r1, 4 |
| 777 | .cfi_rel_offset lr, 8 |
| 778 | sub sp, #4 |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 779 | .cfi_adjust_cfa_offset 4 |
Mathieu Chartier | b99f4d6 | 2016-11-07 16:17:26 -0800 | [diff] [blame] | 780 | bl artInstanceOfFromCode |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 781 | cbz r0, .Lthrow_class_cast_exception |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 782 | add sp, #4 |
| 783 | .cfi_adjust_cfa_offset -4 |
| 784 | pop {r0-r1, pc} |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 785 | .cfi_adjust_cfa_offset 4 @ Reset unwind info so following code unwinds. |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 786 | .Lthrow_class_cast_exception: |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 787 | add sp, #4 |
| 788 | .cfi_adjust_cfa_offset -4 |
| 789 | pop {r0-r1, lr} |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 790 | .cfi_adjust_cfa_offset -12 |
Dave Allison | bbb32c2 | 2013-11-05 18:25:18 -0800 | [diff] [blame] | 791 | .cfi_restore r0 |
| 792 | .cfi_restore r1 |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 793 | .cfi_restore lr |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 794 | SETUP_SAVE_ALL_CALLEE_SAVES_FRAME r2 @ save all registers as basis for long jump context |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 795 | mov r2, r9 @ pass Thread::Current |
Mathieu Chartier | b99f4d6 | 2016-11-07 16:17:26 -0800 | [diff] [blame] | 796 | bl artThrowClassCastExceptionForObject @ (Object*, Class*, Thread*) |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 797 | bkpt |
Mathieu Chartier | b99f4d6 | 2016-11-07 16:17:26 -0800 | [diff] [blame] | 798 | END art_quick_check_instance_of |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 799 | |
Man Cao | 1aee900 | 2015-07-14 22:31:42 -0700 | [diff] [blame] | 800 | // Restore rReg's value from [sp, #offset] if rReg is not the same as rExclude. |
| 801 | .macro POP_REG_NE rReg, offset, rExclude |
| 802 | .ifnc \rReg, \rExclude |
| 803 | ldr \rReg, [sp, #\offset] @ restore rReg |
| 804 | .cfi_restore \rReg |
| 805 | .endif |
| 806 | .endm |
| 807 | |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 808 | // Save rReg's value to [sp, #offset]. |
| 809 | .macro PUSH_REG rReg, offset |
| 810 | str \rReg, [sp, #\offset] @ save rReg |
| 811 | .cfi_rel_offset \rReg, \offset |
| 812 | .endm |
| 813 | |
Man Cao | 1aee900 | 2015-07-14 22:31:42 -0700 | [diff] [blame] | 814 | /* |
| 815 | * Macro to insert read barrier, only used in art_quick_aput_obj. |
| 816 | * rObj and rDest are registers, offset is a defined literal such as MIRROR_OBJECT_CLASS_OFFSET. |
| 817 | * TODO: When read barrier has a fast path, add heap unpoisoning support for the fast path. |
| 818 | */ |
| 819 | .macro READ_BARRIER rDest, rObj, offset |
| 820 | #ifdef USE_READ_BARRIER |
| 821 | push {r0-r3, ip, lr} @ 6 words for saved registers (used in art_quick_aput_obj) |
| 822 | .cfi_adjust_cfa_offset 24 |
| 823 | .cfi_rel_offset r0, 0 |
| 824 | .cfi_rel_offset r1, 4 |
| 825 | .cfi_rel_offset r2, 8 |
| 826 | .cfi_rel_offset r3, 12 |
| 827 | .cfi_rel_offset ip, 16 |
| 828 | .cfi_rel_offset lr, 20 |
| 829 | sub sp, #8 @ push padding |
| 830 | .cfi_adjust_cfa_offset 8 |
Man Cao | 6306921 | 2015-08-21 15:51:39 -0700 | [diff] [blame] | 831 | @ mov r0, \rRef @ pass ref in r0 (no-op for now since parameter ref is unused) |
Man Cao | 1aee900 | 2015-07-14 22:31:42 -0700 | [diff] [blame] | 832 | .ifnc \rObj, r1 |
| 833 | mov r1, \rObj @ pass rObj |
| 834 | .endif |
| 835 | mov r2, #\offset @ pass offset |
| 836 | bl artReadBarrierSlow @ artReadBarrierSlow(ref, rObj, offset) |
| 837 | @ No need to unpoison return value in r0, artReadBarrierSlow() would do the unpoisoning. |
| 838 | .ifnc \rDest, r0 |
| 839 | mov \rDest, r0 @ save return value in rDest |
| 840 | .endif |
| 841 | add sp, #8 @ pop padding |
| 842 | .cfi_adjust_cfa_offset -8 |
| 843 | POP_REG_NE r0, 0, \rDest @ conditionally restore saved registers |
| 844 | POP_REG_NE r1, 4, \rDest |
| 845 | POP_REG_NE r2, 8, \rDest |
| 846 | POP_REG_NE r3, 12, \rDest |
| 847 | POP_REG_NE ip, 16, \rDest |
| 848 | add sp, #20 |
| 849 | .cfi_adjust_cfa_offset -20 |
| 850 | pop {lr} @ restore lr |
| 851 | .cfi_adjust_cfa_offset -4 |
| 852 | .cfi_restore lr |
| 853 | #else |
| 854 | ldr \rDest, [\rObj, #\offset] |
| 855 | UNPOISON_HEAP_REF \rDest |
| 856 | #endif // USE_READ_BARRIER |
| 857 | .endm |
| 858 | |
Ian Rogers | e51a511 | 2011-09-23 14:16:35 -0700 | [diff] [blame] | 859 | /* |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 860 | * Entry from managed code for array put operations of objects where the value being stored |
| 861 | * needs to be checked for compatibility. |
| 862 | * r0 = array, r1 = index, r2 = value |
Ian Rogers | e51a511 | 2011-09-23 14:16:35 -0700 | [diff] [blame] | 863 | */ |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 864 | ENTRY art_quick_aput_obj_with_null_and_bound_check |
| 865 | tst r0, r0 |
Dan Albert | d842648 | 2014-08-07 17:40:03 -0700 | [diff] [blame] | 866 | bne art_quick_aput_obj_with_bound_check |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 867 | b art_quick_throw_null_pointer_exception |
| 868 | END art_quick_aput_obj_with_null_and_bound_check |
| 869 | |
Dan Albert | 58bea4a | 2014-08-09 18:08:07 -0700 | [diff] [blame] | 870 | .hidden art_quick_aput_obj_with_bound_check |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 871 | ENTRY art_quick_aput_obj_with_bound_check |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 872 | ldr r3, [r0, #MIRROR_ARRAY_LENGTH_OFFSET] |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 873 | cmp r3, r1 |
Dan Albert | d842648 | 2014-08-07 17:40:03 -0700 | [diff] [blame] | 874 | bhi art_quick_aput_obj |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 875 | mov r0, r1 |
| 876 | mov r1, r3 |
| 877 | b art_quick_throw_array_bounds |
| 878 | END art_quick_aput_obj_with_bound_check |
| 879 | |
Man Cao | 1aee900 | 2015-07-14 22:31:42 -0700 | [diff] [blame] | 880 | #ifdef USE_READ_BARRIER |
| 881 | .extern artReadBarrierSlow |
| 882 | #endif |
Dan Albert | 58bea4a | 2014-08-09 18:08:07 -0700 | [diff] [blame] | 883 | .hidden art_quick_aput_obj |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 884 | ENTRY art_quick_aput_obj |
Man Cao | 1aee900 | 2015-07-14 22:31:42 -0700 | [diff] [blame] | 885 | #ifdef USE_READ_BARRIER |
| 886 | @ The offset to .Ldo_aput_null is too large to use cbz due to expansion from READ_BARRIER macro. |
| 887 | tst r2, r2 |
| 888 | beq .Ldo_aput_null |
| 889 | #else |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 890 | cbz r2, .Ldo_aput_null |
Man Cao | 1aee900 | 2015-07-14 22:31:42 -0700 | [diff] [blame] | 891 | #endif // USE_READ_BARRIER |
| 892 | READ_BARRIER r3, r0, MIRROR_OBJECT_CLASS_OFFSET |
| 893 | READ_BARRIER ip, r2, MIRROR_OBJECT_CLASS_OFFSET |
| 894 | READ_BARRIER r3, r3, MIRROR_CLASS_COMPONENT_TYPE_OFFSET |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 895 | cmp r3, ip @ value's type == array's component type - trivial assignability |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 896 | bne .Lcheck_assignability |
| 897 | .Ldo_aput: |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 898 | add r3, r0, #MIRROR_OBJECT_ARRAY_DATA_OFFSET |
Hiroshi Yamauchi | bfa5eb6 | 2015-05-29 15:04:41 -0700 | [diff] [blame] | 899 | POISON_HEAP_REF r2 |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 900 | str r2, [r3, r1, lsl #2] |
| 901 | ldr r3, [r9, #THREAD_CARD_TABLE_OFFSET] |
| 902 | lsr r0, r0, #7 |
| 903 | strb r3, [r3, r0] |
| 904 | blx lr |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 905 | .Ldo_aput_null: |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 906 | add r3, r0, #MIRROR_OBJECT_ARRAY_DATA_OFFSET |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 907 | str r2, [r3, r1, lsl #2] |
| 908 | blx lr |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 909 | .Lcheck_assignability: |
| 910 | push {r0-r2, lr} @ save arguments |
Andreas Gampe | 525cde2 | 2014-04-22 15:44:50 -0700 | [diff] [blame] | 911 | .cfi_adjust_cfa_offset 16 |
| 912 | .cfi_rel_offset r0, 0 |
| 913 | .cfi_rel_offset r1, 4 |
| 914 | .cfi_rel_offset r2, 8 |
| 915 | .cfi_rel_offset lr, 12 |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 916 | mov r1, ip |
| 917 | mov r0, r3 |
| 918 | bl artIsAssignableFromCode |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 919 | cbz r0, .Lthrow_array_store_exception |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 920 | pop {r0-r2, lr} |
Andreas Gampe | 525cde2 | 2014-04-22 15:44:50 -0700 | [diff] [blame] | 921 | .cfi_restore r0 |
| 922 | .cfi_restore r1 |
| 923 | .cfi_restore r2 |
| 924 | .cfi_restore lr |
| 925 | .cfi_adjust_cfa_offset -16 |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 926 | add r3, r0, #MIRROR_OBJECT_ARRAY_DATA_OFFSET |
Hiroshi Yamauchi | bfa5eb6 | 2015-05-29 15:04:41 -0700 | [diff] [blame] | 927 | POISON_HEAP_REF r2 |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 928 | str r2, [r3, r1, lsl #2] |
| 929 | ldr r3, [r9, #THREAD_CARD_TABLE_OFFSET] |
| 930 | lsr r0, r0, #7 |
| 931 | strb r3, [r3, r0] |
| 932 | blx lr |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 933 | .Lthrow_array_store_exception: |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 934 | pop {r0-r2, lr} |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 935 | /* No need to repeat restore cfi directives, the ones above apply here. */ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 936 | SETUP_SAVE_ALL_CALLEE_SAVES_FRAME r3 |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 937 | mov r1, r2 |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 938 | mov r2, r9 @ pass Thread::Current |
Vladimir Marko | 908eb22 | 2016-09-14 10:29:18 +0100 | [diff] [blame] | 939 | bl artThrowArrayStoreException @ (Class*, Class*, Thread*) |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 940 | bkpt @ unreached |
Ian Rogers | a9a8254 | 2013-10-04 11:17:26 -0700 | [diff] [blame] | 941 | END art_quick_aput_obj |
Ian Rogers | e51a511 | 2011-09-23 14:16:35 -0700 | [diff] [blame] | 942 | |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 943 | // Macro to facilitate adding new allocation entrypoints. |
Vladimir Marko | 5ea536a | 2015-04-20 20:11:30 +0100 | [diff] [blame] | 944 | .macro ONE_ARG_DOWNCALL name, entrypoint, return |
| 945 | .extern \entrypoint |
| 946 | ENTRY \name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 947 | SETUP_SAVE_REFS_ONLY_FRAME r1 @ save callee saves in case of GC |
Vladimir Marko | 5ea536a | 2015-04-20 20:11:30 +0100 | [diff] [blame] | 948 | mov r1, r9 @ pass Thread::Current |
| 949 | bl \entrypoint @ (uint32_t type_idx, Method* method, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 950 | RESTORE_SAVE_REFS_ONLY_FRAME |
Vladimir Marko | 5ea536a | 2015-04-20 20:11:30 +0100 | [diff] [blame] | 951 | \return |
| 952 | END \name |
| 953 | .endm |
| 954 | |
| 955 | // Macro to facilitate adding new allocation entrypoints. |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 956 | .macro TWO_ARG_DOWNCALL name, entrypoint, return |
| 957 | .extern \entrypoint |
| 958 | ENTRY \name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 959 | SETUP_SAVE_REFS_ONLY_FRAME r2 @ save callee saves in case of GC |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 960 | mov r2, r9 @ pass Thread::Current |
| 961 | bl \entrypoint @ (uint32_t type_idx, Method* method, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 962 | RESTORE_SAVE_REFS_ONLY_FRAME |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 963 | \return |
| 964 | END \name |
| 965 | .endm |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 966 | |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 967 | // Macro to facilitate adding new array allocation entrypoints. |
| 968 | .macro THREE_ARG_DOWNCALL name, entrypoint, return |
| 969 | .extern \entrypoint |
| 970 | ENTRY \name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 971 | SETUP_SAVE_REFS_ONLY_FRAME r3 @ save callee saves in case of GC |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 972 | mov r3, r9 @ pass Thread::Current |
| 973 | @ (uint32_t type_idx, Method* method, int32_t component_count, Thread*) |
| 974 | bl \entrypoint |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 975 | RESTORE_SAVE_REFS_ONLY_FRAME |
Andreas Gampe | 1cc7dba | 2014-12-17 18:43:01 -0800 | [diff] [blame] | 976 | \return |
| 977 | END \name |
| 978 | .endm |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 979 | |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 980 | // Macro to facilitate adding new allocation entrypoints. |
| 981 | .macro FOUR_ARG_DOWNCALL name, entrypoint, return |
| 982 | .extern \entrypoint |
| 983 | ENTRY \name |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 984 | SETUP_SAVE_REFS_ONLY_FRAME r12 @ save callee saves in case of GC |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 985 | str r9, [sp, #-16]! @ expand the frame and pass Thread::Current |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 986 | .cfi_adjust_cfa_offset 16 |
| 987 | bl \entrypoint |
| 988 | add sp, #16 @ strip the extra frame |
| 989 | .cfi_adjust_cfa_offset -16 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 990 | RESTORE_SAVE_REFS_ONLY_FRAME |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 991 | \return |
| 992 | END \name |
| 993 | .endm |
| 994 | |
Vladimir Marko | 5ea536a | 2015-04-20 20:11:30 +0100 | [diff] [blame] | 995 | ONE_ARG_DOWNCALL art_quick_initialize_static_storage, artInitializeStaticStorageFromCode, RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| 996 | ONE_ARG_DOWNCALL art_quick_initialize_type, artInitializeTypeFromCode, RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| 997 | ONE_ARG_DOWNCALL art_quick_initialize_type_and_verify_access, artInitializeTypeAndVerifyAccessFromCode, RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
Ian Rogers | b093c6b | 2011-10-31 16:19:55 -0700 | [diff] [blame] | 998 | |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 999 | /* |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1000 | * Called by managed code to resolve a static field and load a non-wide value. |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1001 | */ |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1002 | ONE_ARG_REF_DOWNCALL art_quick_get_byte_static, artGetByteStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1003 | ONE_ARG_REF_DOWNCALL art_quick_get_boolean_static, artGetBooleanStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1004 | ONE_ARG_REF_DOWNCALL art_quick_get_short_static, artGetShortStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1005 | ONE_ARG_REF_DOWNCALL art_quick_get_char_static, artGetCharStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1006 | ONE_ARG_REF_DOWNCALL art_quick_get32_static, artGet32StaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1007 | ONE_ARG_REF_DOWNCALL art_quick_get_obj_static, artGetObjStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1008 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 1009 | * Called by managed code to resolve a static field and load a 64-bit primitive value. |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1010 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1011 | .extern artGet64StaticFromCode |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1012 | ENTRY art_quick_get64_static |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1013 | SETUP_SAVE_REFS_ONLY_FRAME r2 @ save callee saves in case of GC |
| 1014 | ldr r1, [sp, #FRAME_SIZE_SAVE_REFS_ONLY] @ pass referrer |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1015 | mov r2, r9 @ pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1016 | bl artGet64StaticFromCode @ (uint32_t field_idx, const Method* referrer, Thread*) |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1017 | ldr r2, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1018 | RESTORE_SAVE_REFS_ONLY_FRAME |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1019 | cbnz r2, 1f @ success if no exception pending |
| 1020 | bx lr @ return on success |
| 1021 | 1: |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1022 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1023 | END art_quick_get64_static |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1024 | |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1025 | /* |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1026 | * Called by managed code to resolve an instance field and load a non-wide value. |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1027 | */ |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1028 | TWO_ARG_REF_DOWNCALL art_quick_get_byte_instance, artGetByteInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1029 | TWO_ARG_REF_DOWNCALL art_quick_get_boolean_instance, artGetBooleanInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1030 | TWO_ARG_REF_DOWNCALL art_quick_get_short_instance, artGetShortInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1031 | TWO_ARG_REF_DOWNCALL art_quick_get_char_instance, artGetCharInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1032 | TWO_ARG_REF_DOWNCALL art_quick_get32_instance, artGet32InstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
| 1033 | TWO_ARG_REF_DOWNCALL art_quick_get_obj_instance, artGetObjInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION_R1 |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1034 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 1035 | * Called by managed code to resolve an instance field and load a 64-bit primitive value. |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1036 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1037 | .extern artGet64InstanceFromCode |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1038 | ENTRY art_quick_get64_instance |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1039 | SETUP_SAVE_REFS_ONLY_FRAME r2 @ save callee saves in case of GC |
| 1040 | ldr r2, [sp, #FRAME_SIZE_SAVE_REFS_ONLY] @ pass referrer |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1041 | mov r3, r9 @ pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1042 | bl artGet64InstanceFromCode @ (field_idx, Object*, referrer, Thread*) |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1043 | ldr r2, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1044 | RESTORE_SAVE_REFS_ONLY_FRAME |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1045 | cbnz r2, 1f @ success if no exception pending |
| 1046 | bx lr @ return on success |
| 1047 | 1: |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1048 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1049 | END art_quick_get64_instance |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1050 | |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1051 | /* |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1052 | * Called by managed code to resolve a static field and store a non-wide value. |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1053 | */ |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1054 | TWO_ARG_REF_DOWNCALL art_quick_set8_static, artSet8StaticFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
| 1055 | TWO_ARG_REF_DOWNCALL art_quick_set16_static, artSet16StaticFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
| 1056 | TWO_ARG_REF_DOWNCALL art_quick_set32_static, artSet32StaticFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
| 1057 | TWO_ARG_REF_DOWNCALL art_quick_set_obj_static, artSetObjStaticFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1058 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 1059 | * Called by managed code to resolve a static field and store a 64-bit primitive value. |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 1060 | * On entry r0 holds field index, r2:r3 hold new_val |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1061 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1062 | .extern artSet64StaticFromCode |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1063 | ENTRY art_quick_set64_static |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1064 | SETUP_SAVE_REFS_ONLY_FRAME r1 @ save callee saves in case of GC |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 1065 | @ r2:r3 contain the wide argument |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1066 | ldr r1, [sp, #FRAME_SIZE_SAVE_REFS_ONLY] @ pass referrer |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1067 | str r9, [sp, #-16]! @ expand the frame and pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1068 | .cfi_adjust_cfa_offset 16 |
| 1069 | bl artSet64StaticFromCode @ (field_idx, referrer, new_val, Thread*) |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1070 | add sp, #16 @ release out args |
Dave Allison | bbb32c2 | 2013-11-05 18:25:18 -0800 | [diff] [blame] | 1071 | .cfi_adjust_cfa_offset -16 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1072 | RESTORE_SAVE_REFS_ONLY_FRAME @ TODO: we can clearly save an add here |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1073 | RETURN_IF_RESULT_IS_ZERO |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1074 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1075 | END art_quick_set64_static |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1076 | |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1077 | /* |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1078 | * Called by managed code to resolve an instance field and store a non-wide value. |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 1079 | */ |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1080 | THREE_ARG_REF_DOWNCALL art_quick_set8_instance, artSet8InstanceFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
| 1081 | THREE_ARG_REF_DOWNCALL art_quick_set16_instance, artSet16InstanceFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
| 1082 | THREE_ARG_REF_DOWNCALL art_quick_set32_instance, artSet32InstanceFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
| 1083 | THREE_ARG_REF_DOWNCALL art_quick_set_obj_instance, artSetObjInstanceFromCode, RETURN_IF_RESULT_IS_ZERO_OR_DELIVER |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1084 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 1085 | * Called by managed code to resolve an instance field and store a 64-bit primitive value. |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1086 | */ |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1087 | .extern artSet64InstanceFromCode |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1088 | ENTRY art_quick_set64_instance |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1089 | SETUP_SAVE_REFS_ONLY_FRAME r12 @ save callee saves in case of GC |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 1090 | @ r2:r3 contain the wide argument |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1091 | ldr r12, [sp, #FRAME_SIZE_SAVE_REFS_ONLY] @ pass referrer |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1092 | str r9, [sp, #-12]! @ expand the frame and pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1093 | .cfi_adjust_cfa_offset 12 |
| 1094 | str r12, [sp, #-4]! @ expand the frame and pass the referrer |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1095 | .cfi_adjust_cfa_offset 4 |
| 1096 | bl artSet64InstanceFromCode @ (field_idx, Object*, new_val, Method* referrer, Thread*) |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1097 | add sp, #16 @ release out args |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1098 | .cfi_adjust_cfa_offset -16 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1099 | RESTORE_SAVE_REFS_ONLY_FRAME @ TODO: we can clearly save an add here |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1100 | RETURN_IF_RESULT_IS_ZERO |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1101 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1102 | END art_quick_set64_instance |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1103 | |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 1104 | /* |
Christina Wadsworth | 35ef14b | 2016-08-19 11:24:48 -0700 | [diff] [blame] | 1105 | * Entry from managed code to resolve a string, this stub will |
| 1106 | * check the dex cache for a matching string (the fast path), and if not found, |
| 1107 | * it will allocate a String and deliver an exception on error. |
| 1108 | * On success the String is returned. R0 holds the string index. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1109 | */ |
Christina Wadsworth | 35ef14b | 2016-08-19 11:24:48 -0700 | [diff] [blame] | 1110 | |
| 1111 | ENTRY art_quick_resolve_string |
Nicolas Geoffray | fbc75db | 2016-11-10 15:30:47 +0000 | [diff] [blame] | 1112 | SETUP_SAVE_EVERYTHING_FRAME r1 @ save everything in case of GC |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1113 | mov r1, r9 @ pass Thread::Current |
| 1114 | bl artResolveStringFromCode @ (uint32_t type_idx, Thread*) |
| 1115 | cbz r0, 1f @ If result is null, deliver the OOME. |
| 1116 | .cfi_remember_state |
| 1117 | RESTORE_SAVE_EVERYTHING_FRAME_KEEP_R0 |
Christina Wadsworth | 56ece93 | 2016-08-22 18:16:15 -0700 | [diff] [blame] | 1118 | bx lr |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1119 | .cfi_restore_state |
| 1120 | 1: |
| 1121 | DELIVER_PENDING_EXCEPTION_FRAME_READY |
Christina Wadsworth | 35ef14b | 2016-08-19 11:24:48 -0700 | [diff] [blame] | 1122 | END art_quick_resolve_string |
Ian Rogers | b886da8 | 2011-09-23 16:27:54 -0700 | [diff] [blame] | 1123 | |
Mathieu Chartier | 7410f29 | 2013-11-24 13:17:35 -0800 | [diff] [blame] | 1124 | // Generate the allocation entrypoints for each allocator. |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1125 | GENERATE_ALLOC_ENTRYPOINTS_FOR_EACH_ALLOCATOR |
Hiroshi Yamauchi | 7e1ce28 | 2015-12-11 15:46:19 -0800 | [diff] [blame] | 1126 | |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1127 | // A hand-written override for GENERATE_ALLOC_ENTRYPOINTS_ALLOC_RESOLVED_OBJECT(_rosalloc, RosAlloc). |
| 1128 | ENTRY art_quick_alloc_object_resolved_rosalloc |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1129 | // Fast path rosalloc allocation. |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1130 | // r0: type/return value, r9: Thread::Current |
| 1131 | // r1, r2, r3, r12: free. |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1132 | ldr r3, [r9, #THREAD_LOCAL_ALLOC_STACK_TOP_OFFSET] // Check if the thread local |
| 1133 | // allocation stack has room. |
| 1134 | // TODO: consider using ldrd. |
| 1135 | ldr r12, [r9, #THREAD_LOCAL_ALLOC_STACK_END_OFFSET] |
| 1136 | cmp r3, r12 |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1137 | bhs .Lart_quick_alloc_object_resolved_rosalloc_slow_path |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1138 | |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1139 | ldr r3, [r0, #MIRROR_CLASS_OBJECT_SIZE_ALLOC_FAST_PATH_OFFSET] // Load the object size (r3) |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1140 | cmp r3, #ROSALLOC_MAX_THREAD_LOCAL_BRACKET_SIZE // Check if the size is for a thread |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 1141 | // local allocation. Also does the |
| 1142 | // initialized and finalizable checks. |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1143 | bhs .Lart_quick_alloc_object_resolved_rosalloc_slow_path |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1144 | // Compute the rosalloc bracket index |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 1145 | // from the size. Since the size is |
| 1146 | // already aligned we can combine the |
| 1147 | // two shifts together. |
| 1148 | add r12, r9, r3, lsr #(ROSALLOC_BRACKET_QUANTUM_SIZE_SHIFT - POINTER_SIZE_SHIFT) |
| 1149 | // Subtract pointer size since ther |
| 1150 | // are no runs for 0 byte allocations |
| 1151 | // and the size is already aligned. |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1152 | // Load the rosalloc run (r12) |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 1153 | ldr r12, [r12, #(THREAD_ROSALLOC_RUNS_OFFSET - __SIZEOF_POINTER__)] |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1154 | // Load the free list head (r3). This |
| 1155 | // will be the return val. |
| 1156 | ldr r3, [r12, #(ROSALLOC_RUN_FREE_LIST_OFFSET + ROSALLOC_RUN_FREE_LIST_HEAD_OFFSET)] |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1157 | cbz r3, .Lart_quick_alloc_object_resolved_rosalloc_slow_path |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1158 | // "Point of no slow path". Won't go to the slow path from here on. OK to clobber r0 and r1. |
| 1159 | ldr r1, [r3, #ROSALLOC_SLOT_NEXT_OFFSET] // Load the next pointer of the head |
| 1160 | // and update the list head with the |
| 1161 | // next pointer. |
| 1162 | str r1, [r12, #(ROSALLOC_RUN_FREE_LIST_OFFSET + ROSALLOC_RUN_FREE_LIST_HEAD_OFFSET)] |
| 1163 | // Store the class pointer in the |
| 1164 | // header. This also overwrites the |
| 1165 | // next pointer. The offsets are |
| 1166 | // asserted to match. |
| 1167 | #if ROSALLOC_SLOT_NEXT_OFFSET != MIRROR_OBJECT_CLASS_OFFSET |
| 1168 | #error "Class pointer needs to overwrite next pointer." |
| 1169 | #endif |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1170 | POISON_HEAP_REF r0 |
| 1171 | str r0, [r3, #MIRROR_OBJECT_CLASS_OFFSET] |
Mathieu Chartier | 011dc2c | 2016-07-18 11:11:45 -0700 | [diff] [blame] | 1172 | // Fence. This is "ish" not "ishst" so |
| 1173 | // that it also ensures ordering of |
| 1174 | // the class status load with respect |
| 1175 | // to later accesses to the class |
| 1176 | // object. Alternatively we could use |
| 1177 | // "ishst" if we use load-acquire for |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 1178 | // the object size load. |
Mathieu Chartier | 011dc2c | 2016-07-18 11:11:45 -0700 | [diff] [blame] | 1179 | // Needs to be done before pushing on |
| 1180 | // allocation since Heap::VisitObjects |
| 1181 | // relies on seeing the class pointer. |
| 1182 | // b/28790624 |
| 1183 | dmb ish |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1184 | // Push the new object onto the thread |
| 1185 | // local allocation stack and |
| 1186 | // increment the thread local |
| 1187 | // allocation stack top. |
| 1188 | ldr r1, [r9, #THREAD_LOCAL_ALLOC_STACK_TOP_OFFSET] |
| 1189 | str r3, [r1], #COMPRESSED_REFERENCE_SIZE // (Increment r1 as a side effect.) |
| 1190 | str r1, [r9, #THREAD_LOCAL_ALLOC_STACK_TOP_OFFSET] |
| 1191 | // Decrement the size of the free list |
| 1192 | ldr r1, [r12, #(ROSALLOC_RUN_FREE_LIST_OFFSET + ROSALLOC_RUN_FREE_LIST_SIZE_OFFSET)] |
| 1193 | sub r1, #1 |
| 1194 | // TODO: consider combining this store |
| 1195 | // and the list head store above using |
| 1196 | // strd. |
| 1197 | str r1, [r12, #(ROSALLOC_RUN_FREE_LIST_OFFSET + ROSALLOC_RUN_FREE_LIST_SIZE_OFFSET)] |
Mathieu Chartier | 011dc2c | 2016-07-18 11:11:45 -0700 | [diff] [blame] | 1198 | |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1199 | mov r0, r3 // Set the return value and return. |
| 1200 | bx lr |
| 1201 | |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1202 | .Lart_quick_alloc_object_resolved_rosalloc_slow_path: |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1203 | SETUP_SAVE_REFS_ONLY_FRAME r2 @ save callee saves in case of GC |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1204 | mov r1, r9 @ pass Thread::Current |
| 1205 | bl artAllocObjectFromCodeResolvedRosAlloc @ (mirror::Class* cls, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1206 | RESTORE_SAVE_REFS_ONLY_FRAME |
Hiroshi Yamauchi | dc412b6 | 2015-10-15 12:26:57 -0700 | [diff] [blame] | 1207 | RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1208 | END art_quick_alloc_object_resolved_rosalloc |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 1209 | |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1210 | // The common fast path code for art_quick_alloc_object_resolved_tlab |
| 1211 | // and art_quick_alloc_object_resolved_region_tlab. |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1212 | // |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1213 | // r0: type r9: Thread::Current, r1, r2, r3, r12: free. |
| 1214 | // Need to preserve r0 to the slow path. |
| 1215 | .macro ALLOC_OBJECT_RESOLVED_TLAB_FAST_PATH slowPathLabel |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1216 | // Load thread_local_pos (r12) and |
| 1217 | // thread_local_end (r3) with ldrd. |
| 1218 | // Check constraints for ldrd. |
| 1219 | #if !((THREAD_LOCAL_POS_OFFSET + 4 == THREAD_LOCAL_END_OFFSET) && (THREAD_LOCAL_POS_OFFSET % 8 == 0)) |
| 1220 | #error "Thread::thread_local_pos/end must be consecutive and are 8 byte aligned for performance" |
| 1221 | #endif |
| 1222 | ldrd r12, r3, [r9, #THREAD_LOCAL_POS_OFFSET] |
| 1223 | sub r12, r3, r12 // Compute the remaining buf size. |
Mathieu Chartier | 93bbee0 | 2016-08-31 09:38:40 -0700 | [diff] [blame] | 1224 | ldr r3, [r2, #MIRROR_CLASS_OBJECT_SIZE_ALLOC_FAST_PATH_OFFSET] // Load the object size (r3). |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 1225 | cmp r3, r12 // Check if it fits. |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1226 | bhi \slowPathLabel |
| 1227 | // "Point of no slow path". Won't go to the slow path from here on. OK to clobber r0 and r1. |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1228 | // Reload old thread_local_pos (r0) |
| 1229 | // for the return value. |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1230 | ldr r2, [r9, #THREAD_LOCAL_POS_OFFSET] |
| 1231 | add r1, r2, r3 |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1232 | str r1, [r9, #THREAD_LOCAL_POS_OFFSET] // Store new thread_local_pos. |
| 1233 | ldr r1, [r9, #THREAD_LOCAL_OBJECTS_OFFSET] // Increment thread_local_objects. |
| 1234 | add r1, r1, #1 |
| 1235 | str r1, [r9, #THREAD_LOCAL_OBJECTS_OFFSET] |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1236 | POISON_HEAP_REF r0 |
| 1237 | str r0, [r2, #MIRROR_OBJECT_CLASS_OFFSET] // Store the class pointer. |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1238 | // Fence. This is "ish" not "ishst" so |
| 1239 | // that the code after this allocation |
| 1240 | // site will see the right values in |
| 1241 | // the fields of the class. |
| 1242 | // Alternatively we could use "ishst" |
| 1243 | // if we use load-acquire for the |
Mathieu Chartier | 93bbee0 | 2016-08-31 09:38:40 -0700 | [diff] [blame] | 1244 | // object size load.) |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1245 | mov r0, r2 |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1246 | dmb ish |
| 1247 | bx lr |
| 1248 | .endm |
| 1249 | |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1250 | // A hand-written override for GENERATE_ALLOC_ENTRYPOINTS_ALLOC_RESOLVED_OBJECT(_tlab, TLAB). |
| 1251 | ENTRY art_quick_alloc_object_resolved_tlab |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1252 | // Fast path tlab allocation. |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1253 | // r0: type, r9: Thread::Current |
| 1254 | // r1, r2, r3, r12: free. |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1255 | #if defined(USE_READ_BARRIER) |
Hiroshi Yamauchi | d72945c | 2016-03-16 11:23:10 -0700 | [diff] [blame] | 1256 | mvn r0, #0 // Read barrier not supported here. |
| 1257 | bx lr // Return -1. |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1258 | #endif |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1259 | ALLOC_OBJECT_RESOLVED_TLAB_FAST_PATH .Lart_quick_alloc_object_resolved_tlab_slow_path |
| 1260 | .Lart_quick_alloc_object_resolved_tlab_slow_path: |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1261 | SETUP_SAVE_REFS_ONLY_FRAME r2 // Save callee saves in case of GC. |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1262 | mov r1, r9 // Pass Thread::Current. |
| 1263 | bl artAllocObjectFromCodeResolvedTLAB // (mirror::Class* klass, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1264 | RESTORE_SAVE_REFS_ONLY_FRAME |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1265 | RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1266 | END art_quick_alloc_object_resolved_tlab |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1267 | |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1268 | // A hand-written override for GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_region_tlab, RegionTLAB) |
| 1269 | ENTRY art_quick_alloc_object_resolved_region_tlab |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1270 | // Fast path tlab allocation. |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1271 | // r0: type, r9: Thread::Current, r1, r2, r3, r12: free. |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1272 | #if !defined(USE_READ_BARRIER) |
| 1273 | eor r0, r0, r0 // Read barrier must be enabled here. |
| 1274 | sub r0, r0, #1 // Return -1. |
| 1275 | bx lr |
| 1276 | #endif |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1277 | ALLOC_OBJECT_RESOLVED_TLAB_FAST_PATH .Lart_quick_alloc_object_resolved_region_tlab_slow_path |
| 1278 | .Lart_quick_alloc_object_resolved_region_tlab_slow_path: |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1279 | SETUP_SAVE_REFS_ONLY_FRAME r2 // Save callee saves in case of GC. |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1280 | mov r1, r9 // Pass Thread::Current. |
| 1281 | bl artAllocObjectFromCodeResolvedRegionTLAB // (mirror::Class* klass, Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1282 | RESTORE_SAVE_REFS_ONLY_FRAME |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1283 | RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
Nicolas Geoffray | 2b615ba | 2017-01-06 14:40:07 +0000 | [diff] [blame] | 1284 | END art_quick_alloc_object_resolved_region_tlab |
Hiroshi Yamauchi | 10d4c08 | 2016-02-24 12:51:18 -0800 | [diff] [blame] | 1285 | |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 1286 | /* |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 1287 | * Called by managed code when the value in rSUSPEND has been decremented to 0. |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 1288 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1289 | .extern artTestSuspendFromCode |
| 1290 | ENTRY art_quick_test_suspend |
Wei Jin | 04f4d8a | 2014-05-29 18:04:29 -0700 | [diff] [blame] | 1291 | #ifdef ARM_R4_SUSPEND_FLAG |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 1292 | ldrh rSUSPEND, [rSELF, #THREAD_FLAGS_OFFSET] |
| 1293 | cbnz rSUSPEND, 1f @ check Thread::Current()->suspend_count_ == 0 |
| 1294 | mov rSUSPEND, #SUSPEND_CHECK_INTERVAL @ reset rSUSPEND to SUSPEND_CHECK_INTERVAL |
| 1295 | bx lr @ return if suspend_count_ == 0 |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1296 | 1: |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 1297 | mov rSUSPEND, #SUSPEND_CHECK_INTERVAL @ reset rSUSPEND to SUSPEND_CHECK_INTERVAL |
Wei Jin | 04f4d8a | 2014-05-29 18:04:29 -0700 | [diff] [blame] | 1298 | #endif |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1299 | SETUP_SAVE_EVERYTHING_FRAME r0 @ save everything for GC stack crawl |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 1300 | mov r0, rSELF |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 1301 | bl artTestSuspendFromCode @ (Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1302 | RESTORE_SAVE_EVERYTHING_FRAME |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 1303 | bx lr |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1304 | END art_quick_test_suspend |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 1305 | |
Dave Allison | 8325296 | 2014-04-03 16:33:48 -0700 | [diff] [blame] | 1306 | ENTRY art_quick_implicit_suspend |
| 1307 | mov r0, rSELF |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1308 | SETUP_SAVE_REFS_ONLY_FRAME r1 @ save callee saves for stack crawl |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1309 | bl artTestSuspendFromCode @ (Thread*) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1310 | RESTORE_SAVE_REFS_ONLY_FRAME_AND_RETURN |
Dave Allison | 8325296 | 2014-04-03 16:33:48 -0700 | [diff] [blame] | 1311 | END art_quick_implicit_suspend |
| 1312 | |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 1313 | /* |
| 1314 | * Called by managed code that is attempting to call a method on a proxy class. On entry |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 1315 | * r0 holds the proxy method and r1 holds the receiver; r2 and r3 may contain arguments. The |
| 1316 | * frame size of the invoked proxy method agrees with a ref and args callee save frame. |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 1317 | */ |
Jeff Hao | 5fa60c3 | 2013-04-04 17:57:01 -0700 | [diff] [blame] | 1318 | .extern artQuickProxyInvokeHandler |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1319 | ENTRY art_quick_proxy_invoke_handler |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1320 | SETUP_SAVE_REFS_AND_ARGS_FRAME_WITH_METHOD_IN_R0 |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 1321 | mov r2, r9 @ pass Thread::Current |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 1322 | mov r3, sp @ pass SP |
Jeff Hao | 5fa60c3 | 2013-04-04 17:57:01 -0700 | [diff] [blame] | 1323 | blx artQuickProxyInvokeHandler @ (Method* proxy method, receiver, Thread*, SP) |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1324 | ldr r2, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1325 | // Tear down the callee-save frame. Skip arg registers. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1326 | add sp, #(FRAME_SIZE_SAVE_REFS_AND_ARGS - FRAME_SIZE_SAVE_REFS_ONLY) |
| 1327 | .cfi_adjust_cfa_offset -(FRAME_SIZE_SAVE_REFS_AND_ARGS - FRAME_SIZE_SAVE_REFS_ONLY) |
| 1328 | RESTORE_SAVE_REFS_ONLY_FRAME |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1329 | cbnz r2, 1f @ success if no exception is pending |
| 1330 | vmov d0, r0, r1 @ store into fpr, for when it's a fpr return... |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1331 | bx lr @ return on success |
| 1332 | 1: |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 1333 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1334 | END art_quick_proxy_invoke_handler |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 1335 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1336 | /* |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 1337 | * Called to resolve an imt conflict. |
| 1338 | * r0 is the conflict ArtMethod. |
| 1339 | * r12 is a hidden argument that holds the target interface method's dex method index. |
| 1340 | * |
| 1341 | * Note that this stub writes to r0, r4, and r12. |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1342 | */ |
| 1343 | ENTRY art_quick_imt_conflict_trampoline |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 1344 | ldr r4, [sp, #0] // Load referrer |
| 1345 | ldr r4, [r4, #ART_METHOD_DEX_CACHE_METHODS_OFFSET_32] // Load dex cache methods array |
| 1346 | ldr r12, [r4, r12, lsl #POINTER_SIZE_SHIFT] // Load interface method |
| 1347 | ldr r0, [r0, #ART_METHOD_JNI_OFFSET_32] // Load ImtConflictTable |
| 1348 | ldr r4, [r0] // Load first entry in ImtConflictTable. |
| 1349 | .Limt_table_iterate: |
| 1350 | cmp r4, r12 |
| 1351 | // Branch if found. Benchmarks have shown doing a branch here is better. |
| 1352 | beq .Limt_table_found |
| 1353 | // If the entry is null, the interface method is not in the ImtConflictTable. |
| 1354 | cbz r4, .Lconflict_trampoline |
| 1355 | // Iterate over the entries of the ImtConflictTable. |
| 1356 | ldr r4, [r0, #(2 * __SIZEOF_POINTER__)]! |
| 1357 | b .Limt_table_iterate |
| 1358 | .Limt_table_found: |
Goran Jakovljevic | 59028d9 | 2016-03-29 18:05:03 +0200 | [diff] [blame] | 1359 | // We successfully hit an entry in the table. Load the target method |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 1360 | // and jump to it. |
| 1361 | ldr r0, [r0, #__SIZEOF_POINTER__] |
| 1362 | ldr pc, [r0, #ART_METHOD_QUICK_CODE_OFFSET_32] |
| 1363 | .Lconflict_trampoline: |
| 1364 | // Call the runtime stub to populate the ImtConflictTable and jump to the |
| 1365 | // resolved method. |
Andreas Gampe | 3031c8d | 2015-07-13 20:11:06 -0700 | [diff] [blame] | 1366 | INVOKE_TRAMPOLINE_BODY artInvokeInterfaceTrampoline |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1367 | END art_quick_imt_conflict_trampoline |
| 1368 | |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1369 | .extern artQuickResolutionTrampoline |
| 1370 | ENTRY art_quick_resolution_trampoline |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1371 | SETUP_SAVE_REFS_AND_ARGS_FRAME r2 |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1372 | mov r2, r9 @ pass Thread::Current |
| 1373 | mov r3, sp @ pass SP |
| 1374 | blx artQuickResolutionTrampoline @ (Method* called, receiver, Thread*, SP) |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1375 | cbz r0, 1f @ is code pointer null? goto exception |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1376 | mov r12, r0 |
| 1377 | ldr r0, [sp, #0] @ load resolved method in r0 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1378 | RESTORE_SAVE_REFS_AND_ARGS_FRAME |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1379 | bx r12 @ tail-call into actual code |
| 1380 | 1: |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1381 | RESTORE_SAVE_REFS_AND_ARGS_FRAME |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1382 | DELIVER_PENDING_EXCEPTION |
| 1383 | END art_quick_resolution_trampoline |
| 1384 | |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1385 | /* |
| 1386 | * Called to do a generic JNI down-call |
| 1387 | */ |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 1388 | ENTRY art_quick_generic_jni_trampoline |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1389 | SETUP_SAVE_REFS_AND_ARGS_FRAME_WITH_METHOD_IN_R0 |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1390 | |
| 1391 | // Save rSELF |
| 1392 | mov r11, rSELF |
| 1393 | // Save SP , so we can have static CFI info. r10 is saved in ref_and_args. |
| 1394 | mov r10, sp |
| 1395 | .cfi_def_cfa_register r10 |
| 1396 | |
| 1397 | sub sp, sp, #5120 |
| 1398 | |
| 1399 | // prepare for artQuickGenericJniTrampoline call |
| 1400 | // (Thread*, SP) |
| 1401 | // r0 r1 <= C calling convention |
| 1402 | // rSELF r10 <= where they are |
| 1403 | |
| 1404 | mov r0, rSELF // Thread* |
| 1405 | mov r1, r10 |
| 1406 | blx artQuickGenericJniTrampoline // (Thread*, sp) |
| 1407 | |
| 1408 | // The C call will have registered the complete save-frame on success. |
| 1409 | // The result of the call is: |
| 1410 | // r0: pointer to native code, 0 on error. |
| 1411 | // r1: pointer to the bottom of the used area of the alloca, can restore stack till there. |
| 1412 | |
| 1413 | // Check for error = 0. |
Nicolas Geoffray | 126d659 | 2015-03-03 14:28:35 +0000 | [diff] [blame] | 1414 | cbz r0, .Lexception_in_native |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1415 | |
| 1416 | // Release part of the alloca. |
| 1417 | mov sp, r1 |
| 1418 | |
| 1419 | // Save the code pointer |
| 1420 | mov r12, r0 |
| 1421 | |
| 1422 | // Load parameters from frame into registers. |
| 1423 | pop {r0-r3} |
| 1424 | |
| 1425 | // Softfloat. |
| 1426 | // TODO: Change to hardfloat when supported. |
| 1427 | |
| 1428 | blx r12 // native call. |
| 1429 | |
| 1430 | // result sign extension is handled in C code |
| 1431 | // prepare for artQuickGenericJniEndTrampoline call |
| 1432 | // (Thread*, result, result_f) |
Nicolas Geoffray | 54accbc | 2014-08-13 03:40:45 +0100 | [diff] [blame] | 1433 | // r0 r2,r3 stack <= C calling convention |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1434 | // r11 r0,r1 r0,r1 <= where they are |
Nicolas Geoffray | 54accbc | 2014-08-13 03:40:45 +0100 | [diff] [blame] | 1435 | sub sp, sp, #8 // Stack alignment. |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1436 | |
Nicolas Geoffray | 54accbc | 2014-08-13 03:40:45 +0100 | [diff] [blame] | 1437 | push {r0-r1} |
| 1438 | mov r3, r1 |
| 1439 | mov r2, r0 |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1440 | mov r0, r11 |
| 1441 | |
| 1442 | blx artQuickGenericJniEndTrampoline |
| 1443 | |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1444 | // Restore self pointer. |
| 1445 | mov r9, r11 |
| 1446 | |
| 1447 | // Pending exceptions possible. |
| 1448 | ldr r2, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
| 1449 | cbnz r2, .Lexception_in_native |
| 1450 | |
Nicolas Geoffray | 126d659 | 2015-03-03 14:28:35 +0000 | [diff] [blame] | 1451 | // Tear down the alloca. |
| 1452 | mov sp, r10 |
| 1453 | .cfi_def_cfa_register sp |
| 1454 | |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1455 | // Tear down the callee-save frame. Skip arg registers. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1456 | add sp, #FRAME_SIZE_SAVE_REFS_AND_ARGS-FRAME_SIZE_SAVE_REFS_ONLY |
| 1457 | .cfi_adjust_cfa_offset -(FRAME_SIZE_SAVE_REFS_AND_ARGS-FRAME_SIZE_SAVE_REFS_ONLY) |
| 1458 | RESTORE_SAVE_REFS_ONLY_FRAME |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1459 | |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1460 | // store into fpr, for when it's a fpr return... |
| 1461 | vmov d0, r0, r1 |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1462 | bx lr // ret |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 1463 | // Undo the unwinding information from above since it doesn't apply below. |
| 1464 | .cfi_def_cfa_register r10 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1465 | .cfi_adjust_cfa_offset FRAME_SIZE_SAVE_REFS_AND_ARGS-FRAME_SIZE_SAVE_REFS_ONLY |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1466 | |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1467 | .Lexception_in_native: |
Nicolas Geoffray | 126d659 | 2015-03-03 14:28:35 +0000 | [diff] [blame] | 1468 | ldr sp, [r9, #THREAD_TOP_QUICK_FRAME_OFFSET] |
| 1469 | .cfi_def_cfa_register sp |
| 1470 | # This will create a new save-all frame, required by the runtime. |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1471 | DELIVER_PENDING_EXCEPTION |
Andreas Gampe | c200a4a | 2014-06-16 18:39:09 -0700 | [diff] [blame] | 1472 | END art_quick_generic_jni_trampoline |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1473 | |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1474 | .extern artQuickToInterpreterBridge |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 1475 | ENTRY art_quick_to_interpreter_bridge |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1476 | SETUP_SAVE_REFS_AND_ARGS_FRAME r1 |
Ian Rogers | 7db619b | 2013-01-16 18:35:48 -0800 | [diff] [blame] | 1477 | mov r1, r9 @ pass Thread::Current |
| 1478 | mov r2, sp @ pass SP |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1479 | blx artQuickToInterpreterBridge @ (Method* method, Thread*, SP) |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1480 | ldr r2, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1481 | // Tear down the callee-save frame. Skip arg registers. |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1482 | add sp, #(FRAME_SIZE_SAVE_REFS_AND_ARGS - FRAME_SIZE_SAVE_REFS_ONLY) |
| 1483 | .cfi_adjust_cfa_offset -(FRAME_SIZE_SAVE_REFS_AND_ARGS - FRAME_SIZE_SAVE_REFS_ONLY) |
| 1484 | RESTORE_SAVE_REFS_ONLY_FRAME |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1485 | cbnz r2, 1f @ success if no exception is pending |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1486 | vmov d0, r0, r1 @ store into fpr, for when it's a fpr return... |
| 1487 | bx lr @ return on success |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1488 | 1: |
Ian Rogers | 7db619b | 2013-01-16 18:35:48 -0800 | [diff] [blame] | 1489 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1490 | END art_quick_to_interpreter_bridge |
Ian Rogers | 7db619b | 2013-01-16 18:35:48 -0800 | [diff] [blame] | 1491 | |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 1492 | /* |
jeffhao | 0791adc | 2012-04-04 11:14:32 -0700 | [diff] [blame] | 1493 | * Routine that intercepts method calls and returns. |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 1494 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1495 | .extern artInstrumentationMethodEntryFromCode |
| 1496 | .extern artInstrumentationMethodExitFromCode |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1497 | ENTRY art_quick_instrumentation_entry |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1498 | @ Make stack crawlable and clobber r2 and r3 (post saving) |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1499 | SETUP_SAVE_REFS_AND_ARGS_FRAME r2 |
| 1500 | @ preserve r0 (not normally an arg) knowing there is a spare slot in kSaveRefsAndArgs. |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1501 | str r0, [sp, #4] |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1502 | mov r2, r9 @ pass Thread::Current |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1503 | mov r3, lr @ pass LR |
| 1504 | blx artInstrumentationMethodEntryFromCode @ (Method*, Object*, Thread*, LR) |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1505 | mov r12, r0 @ r12 holds reference to code |
| 1506 | ldr r0, [sp, #4] @ restore r0 |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1507 | RESTORE_SAVE_REFS_AND_ARGS_FRAME |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1508 | blx r12 @ call method with lr set to art_quick_instrumentation_exit |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1509 | @ Deliberate fall-through into art_quick_instrumentation_exit. |
Ian Rogers | 468532e | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1510 | .type art_quick_instrumentation_exit, #function |
| 1511 | .global art_quick_instrumentation_exit |
| 1512 | art_quick_instrumentation_exit: |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1513 | mov lr, #0 @ link register is to here, so clobber with 0 for later checks |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1514 | SETUP_SAVE_REFS_ONLY_FRAME r2 @ set up frame knowing r2 and r3 must be dead on exit |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1515 | mov r12, sp @ remember bottom of caller's frame |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 1516 | push {r0-r1} @ save return value |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1517 | .cfi_adjust_cfa_offset 8 |
| 1518 | .cfi_rel_offset r0, 0 |
| 1519 | .cfi_rel_offset r1, 4 |
Andreas Gampe | c89b047 | 2015-06-23 23:28:59 -0700 | [diff] [blame] | 1520 | vpush {d0} @ save fp return value |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1521 | .cfi_adjust_cfa_offset 8 |
Andreas Gampe | c89b047 | 2015-06-23 23:28:59 -0700 | [diff] [blame] | 1522 | sub sp, #8 @ space for return value argument. Note: AAPCS stack alignment is 8B, no |
| 1523 | @ need to align by 16. |
| 1524 | .cfi_adjust_cfa_offset 8 |
| 1525 | vstr d0, [sp] @ d0 -> [sp] for fpr_res |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1526 | mov r2, r0 @ pass return value as gpr_res |
| 1527 | mov r3, r1 |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1528 | mov r0, r9 @ pass Thread::Current |
| 1529 | mov r1, r12 @ pass SP |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1530 | blx artInstrumentationMethodExitFromCode @ (Thread*, SP, gpr_res, fpr_res) |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1531 | add sp, #8 |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1532 | .cfi_adjust_cfa_offset -8 |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1533 | |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1534 | mov r2, r0 @ link register saved by instrumentation |
| 1535 | mov lr, r1 @ r1 is holding link register if we're to bounce to deoptimize |
Andreas Gampe | c89b047 | 2015-06-23 23:28:59 -0700 | [diff] [blame] | 1536 | vpop {d0} @ restore fp return value |
| 1537 | .cfi_adjust_cfa_offset -8 |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 1538 | pop {r0, r1} @ restore return value |
Christopher Ferris | d0a0b3e | 2014-10-30 19:04:13 -0700 | [diff] [blame] | 1539 | .cfi_adjust_cfa_offset -8 |
Dave Allison | bbb32c2 | 2013-11-05 18:25:18 -0800 | [diff] [blame] | 1540 | .cfi_restore r0 |
| 1541 | .cfi_restore r1 |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1542 | add sp, #32 @ remove callee save frame |
| 1543 | .cfi_adjust_cfa_offset -32 |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1544 | bx r2 @ return |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1545 | END art_quick_instrumentation_entry |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1546 | |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1547 | /* |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1548 | * Instrumentation has requested that we deoptimize into the interpreter. The deoptimization |
| 1549 | * will long jump to the upcall with a special exception of -1. |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 1550 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1551 | .extern artDeoptimize |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1552 | ENTRY art_quick_deoptimize |
Vladimir Marko | fd36f1f | 2016-08-03 18:49:58 +0100 | [diff] [blame] | 1553 | SETUP_SAVE_ALL_CALLEE_SAVES_FRAME r0 |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1554 | mov r0, r9 @ Set up args. |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1555 | blx artDeoptimize @ artDeoptimize(Thread*) |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1556 | END art_quick_deoptimize |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 1557 | |
Ian Rogers | 324e190 | 2012-09-09 12:17:52 -0700 | [diff] [blame] | 1558 | /* |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 1559 | * Compiled code has requested that we deoptimize into the interpreter. The deoptimization |
Andreas Gampe | 639bdd1 | 2015-06-03 11:22:45 -0700 | [diff] [blame] | 1560 | * will long jump to the interpreter bridge. |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 1561 | */ |
| 1562 | .extern artDeoptimizeFromCompiledCode |
| 1563 | ENTRY art_quick_deoptimize_from_compiled_code |
Vladimir Marko | 239d6ea | 2016-09-05 10:44:04 +0100 | [diff] [blame] | 1564 | SETUP_SAVE_EVERYTHING_FRAME r0 |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 1565 | mov r0, r9 @ Set up args. |
| 1566 | blx artDeoptimizeFromCompiledCode @ artDeoptimizeFromCompiledCode(Thread*) |
| 1567 | END art_quick_deoptimize_from_compiled_code |
| 1568 | |
| 1569 | /* |
Ian Rogers | 324e190 | 2012-09-09 12:17:52 -0700 | [diff] [blame] | 1570 | * Signed 64-bit integer multiply. |
| 1571 | * |
| 1572 | * Consider WXxYZ (r1r0 x r3r2) with a long multiply: |
| 1573 | * WX |
| 1574 | * x YZ |
| 1575 | * -------- |
| 1576 | * ZW ZX |
| 1577 | * YW YX |
| 1578 | * |
| 1579 | * The low word of the result holds ZX, the high word holds |
| 1580 | * (ZW+YX) + (the high overflow from ZX). YW doesn't matter because |
| 1581 | * it doesn't fit in the low 64 bits. |
| 1582 | * |
| 1583 | * Unlike most ARM math operations, multiply instructions have |
| 1584 | * restrictions on using the same register more than once (Rd and Rm |
| 1585 | * cannot be the same). |
| 1586 | */ |
| 1587 | /* mul-long vAA, vBB, vCC */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1588 | ENTRY art_quick_mul_long |
Ian Rogers | 324e190 | 2012-09-09 12:17:52 -0700 | [diff] [blame] | 1589 | push {r9 - r10} |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1590 | .cfi_adjust_cfa_offset 8 |
| 1591 | .cfi_rel_offset r9, 0 |
| 1592 | .cfi_rel_offset r10, 4 |
Ian Rogers | 324e190 | 2012-09-09 12:17:52 -0700 | [diff] [blame] | 1593 | mul ip, r2, r1 @ ip<- ZxW |
| 1594 | umull r9, r10, r2, r0 @ r9/r10 <- ZxX |
| 1595 | mla r2, r0, r3, ip @ r2<- YxX + (ZxW) |
| 1596 | add r10, r2, r10 @ r10<- r10 + low(ZxW + (YxX)) |
| 1597 | mov r0,r9 |
| 1598 | mov r1,r10 |
| 1599 | pop {r9 - r10} |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1600 | .cfi_adjust_cfa_offset -8 |
Dave Allison | bbb32c2 | 2013-11-05 18:25:18 -0800 | [diff] [blame] | 1601 | .cfi_restore r9 |
| 1602 | .cfi_restore r10 |
Ian Rogers | 324e190 | 2012-09-09 12:17:52 -0700 | [diff] [blame] | 1603 | bx lr |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1604 | END art_quick_mul_long |
Ian Rogers | 324e190 | 2012-09-09 12:17:52 -0700 | [diff] [blame] | 1605 | |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1606 | /* |
| 1607 | * Long integer shift. This is different from the generic 32/64-bit |
| 1608 | * binary operations because vAA/vBB are 64-bit but vCC (the shift |
| 1609 | * distance) is 32-bit. Also, Dalvik requires us to ignore all but the low |
| 1610 | * 6 bits. |
| 1611 | * On entry: |
| 1612 | * r0: low word |
| 1613 | * r1: high word |
| 1614 | * r2: shift count |
| 1615 | */ |
| 1616 | /* shl-long vAA, vBB, vCC */ |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1617 | ARM_ENTRY art_quick_shl_long @ ARM code as thumb code requires spills |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1618 | and r2, r2, #63 @ r2<- r2 & 0x3f |
| 1619 | mov r1, r1, asl r2 @ r1<- r1 << r2 |
| 1620 | rsb r3, r2, #32 @ r3<- 32 - r2 |
| 1621 | orr r1, r1, r0, lsr r3 @ r1<- r1 | (r0 << (32-r2)) |
| 1622 | subs ip, r2, #32 @ ip<- r2 - 32 |
| 1623 | movpl r1, r0, asl ip @ if r2 >= 32, r1<- r0 << (r2-32) |
| 1624 | mov r0, r0, asl r2 @ r0<- r0 << r2 |
| 1625 | bx lr |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1626 | END art_quick_shl_long |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1627 | |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1628 | /* |
| 1629 | * Long integer shift. This is different from the generic 32/64-bit |
| 1630 | * binary operations because vAA/vBB are 64-bit but vCC (the shift |
| 1631 | * distance) is 32-bit. Also, Dalvik requires us to ignore all but the low |
| 1632 | * 6 bits. |
| 1633 | * On entry: |
| 1634 | * r0: low word |
| 1635 | * r1: high word |
| 1636 | * r2: shift count |
| 1637 | */ |
| 1638 | /* shr-long vAA, vBB, vCC */ |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1639 | ARM_ENTRY art_quick_shr_long @ ARM code as thumb code requires spills |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1640 | and r2, r2, #63 @ r0<- r0 & 0x3f |
| 1641 | mov r0, r0, lsr r2 @ r0<- r2 >> r2 |
| 1642 | rsb r3, r2, #32 @ r3<- 32 - r2 |
| 1643 | orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2)) |
| 1644 | subs ip, r2, #32 @ ip<- r2 - 32 |
| 1645 | movpl r0, r1, asr ip @ if r2 >= 32, r0<-r1 >> (r2-32) |
| 1646 | mov r1, r1, asr r2 @ r1<- r1 >> r2 |
| 1647 | bx lr |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1648 | END art_quick_shr_long |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1649 | |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1650 | /* |
| 1651 | * Long integer shift. This is different from the generic 32/64-bit |
| 1652 | * binary operations because vAA/vBB are 64-bit but vCC (the shift |
| 1653 | * distance) is 32-bit. Also, Dalvik requires us to ignore all but the low |
| 1654 | * 6 bits. |
| 1655 | * On entry: |
| 1656 | * r0: low word |
| 1657 | * r1: high word |
| 1658 | * r2: shift count |
| 1659 | */ |
| 1660 | /* ushr-long vAA, vBB, vCC */ |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1661 | ARM_ENTRY art_quick_ushr_long @ ARM code as thumb code requires spills |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 1662 | and r2, r2, #63 @ r0<- r0 & 0x3f |
| 1663 | mov r0, r0, lsr r2 @ r0<- r2 >> r2 |
| 1664 | rsb r3, r2, #32 @ r3<- 32 - r2 |
| 1665 | orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2)) |
| 1666 | subs ip, r2, #32 @ ip<- r2 - 32 |
| 1667 | movpl r0, r1, lsr ip @ if r2 >= 32, r0<-r1 >>> (r2-32) |
| 1668 | mov r1, r1, lsr r2 @ r1<- r1 >>> r2 |
| 1669 | bx lr |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1670 | END art_quick_ushr_long |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1671 | |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1672 | /* |
| 1673 | * String's indexOf. |
| 1674 | * |
| 1675 | * On entry: |
| 1676 | * r0: string object (known non-null) |
jeffhao | 86e4671 | 2012-08-08 17:30:59 -0700 | [diff] [blame] | 1677 | * r1: char to match (known <= 0xFFFF) |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1678 | * r2: Starting offset in string data |
| 1679 | */ |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1680 | ENTRY art_quick_indexof |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1681 | push {r4, r10-r11, lr} @ 4 words of callee saves |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1682 | .cfi_adjust_cfa_offset 16 |
| 1683 | .cfi_rel_offset r4, 0 |
| 1684 | .cfi_rel_offset r10, 4 |
| 1685 | .cfi_rel_offset r11, 8 |
| 1686 | .cfi_rel_offset lr, 12 |
Vladimir Marko | fdaf0f4 | 2016-10-13 19:29:53 +0100 | [diff] [blame] | 1687 | #if (STRING_COMPRESSION_FEATURE) |
| 1688 | ldr r4, [r0, #MIRROR_STRING_COUNT_OFFSET] |
| 1689 | #else |
Ian Rogers | 1d8cdbc | 2014-09-22 22:51:09 -0700 | [diff] [blame] | 1690 | ldr r3, [r0, #MIRROR_STRING_COUNT_OFFSET] |
Vladimir Marko | fdaf0f4 | 2016-10-13 19:29:53 +0100 | [diff] [blame] | 1691 | #endif |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 1692 | add r0, #MIRROR_STRING_VALUE_OFFSET |
jessicahandojo | 0576575 | 2016-09-09 19:01:32 -0700 | [diff] [blame] | 1693 | #if (STRING_COMPRESSION_FEATURE) |
| 1694 | /* r4 count (with flag) and r3 holds actual length */ |
Vladimir Marko | fdaf0f4 | 2016-10-13 19:29:53 +0100 | [diff] [blame] | 1695 | lsr r3, r4, #1 |
jessicahandojo | 0576575 | 2016-09-09 19:01:32 -0700 | [diff] [blame] | 1696 | #endif |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1697 | /* Clamp start to [0..count] */ |
| 1698 | cmp r2, #0 |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1699 | it lt |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1700 | movlt r2, #0 |
| 1701 | cmp r2, r3 |
Ian Rogers | 637859c | 2013-08-27 14:35:54 -0700 | [diff] [blame] | 1702 | it gt |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1703 | movgt r2, r3 |
| 1704 | |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1705 | /* Save a copy in r12 to later compute result */ |
| 1706 | mov r12, r0 |
| 1707 | |
| 1708 | /* Build pointer to start of data to compare and pre-bias */ |
jessicahandojo | 0576575 | 2016-09-09 19:01:32 -0700 | [diff] [blame] | 1709 | #if (STRING_COMPRESSION_FEATURE) |
Vladimir Marko | fdaf0f4 | 2016-10-13 19:29:53 +0100 | [diff] [blame] | 1710 | lsrs r4, r4, #1 |
| 1711 | bcc .Lstring_indexof_compressed |
jessicahandojo | 0576575 | 2016-09-09 19:01:32 -0700 | [diff] [blame] | 1712 | #endif |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1713 | add r0, r0, r2, lsl #1 |
| 1714 | sub r0, #2 |
| 1715 | |
| 1716 | /* Compute iteration count */ |
| 1717 | sub r2, r3, r2 |
| 1718 | |
| 1719 | /* |
| 1720 | * At this point we have: |
| 1721 | * r0: start of data to test |
| 1722 | * r1: char to compare |
| 1723 | * r2: iteration count |
jessicahandojo | 0576575 | 2016-09-09 19:01:32 -0700 | [diff] [blame] | 1724 | * r4: compression style (used temporarily) |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1725 | * r12: original start of string data |
| 1726 | * r3, r4, r10, r11 available for loading string data |
| 1727 | */ |
| 1728 | |
| 1729 | subs r2, #4 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1730 | blt .Lindexof_remainder |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1731 | |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1732 | .Lindexof_loop4: |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1733 | ldrh r3, [r0, #2]! |
| 1734 | ldrh r4, [r0, #2]! |
| 1735 | ldrh r10, [r0, #2]! |
| 1736 | ldrh r11, [r0, #2]! |
| 1737 | cmp r3, r1 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1738 | beq .Lmatch_0 |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1739 | cmp r4, r1 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1740 | beq .Lmatch_1 |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1741 | cmp r10, r1 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1742 | beq .Lmatch_2 |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1743 | cmp r11, r1 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1744 | beq .Lmatch_3 |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1745 | subs r2, #4 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1746 | bge .Lindexof_loop4 |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1747 | |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1748 | .Lindexof_remainder: |
| 1749 | adds r2, #4 |
| 1750 | beq .Lindexof_nomatch |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1751 | |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1752 | .Lindexof_loop1: |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1753 | ldrh r3, [r0, #2]! |
| 1754 | cmp r3, r1 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1755 | beq .Lmatch_3 |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1756 | subs r2, #1 |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1757 | bne .Lindexof_loop1 |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1758 | |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1759 | .Lindexof_nomatch: |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1760 | mov r0, #-1 |
| 1761 | pop {r4, r10-r11, pc} |
| 1762 | |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1763 | .Lmatch_0: |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1764 | sub r0, #6 |
| 1765 | sub r0, r12 |
| 1766 | asr r0, r0, #1 |
| 1767 | pop {r4, r10-r11, pc} |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1768 | .Lmatch_1: |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1769 | sub r0, #4 |
| 1770 | sub r0, r12 |
| 1771 | asr r0, r0, #1 |
| 1772 | pop {r4, r10-r11, pc} |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1773 | .Lmatch_2: |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1774 | sub r0, #2 |
| 1775 | sub r0, r12 |
| 1776 | asr r0, r0, #1 |
| 1777 | pop {r4, r10-r11, pc} |
Ian Rogers | 5d885c8 | 2014-02-21 20:06:23 -0800 | [diff] [blame] | 1778 | .Lmatch_3: |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1779 | sub r0, r12 |
| 1780 | asr r0, r0, #1 |
| 1781 | pop {r4, r10-r11, pc} |
jessicahandojo | 0576575 | 2016-09-09 19:01:32 -0700 | [diff] [blame] | 1782 | #if (STRING_COMPRESSION_FEATURE) |
| 1783 | .Lstring_indexof_compressed: |
| 1784 | add r0, r0, r2 |
| 1785 | sub r0, #1 |
| 1786 | sub r2, r3, r2 |
| 1787 | .Lstring_indexof_compressed_loop: |
| 1788 | subs r2, #1 |
| 1789 | blt .Lindexof_nomatch |
| 1790 | ldrb r3, [r0, #1]! |
| 1791 | cmp r3, r1 |
| 1792 | beq .Lstring_indexof_compressed_matched |
| 1793 | b .Lstring_indexof_compressed_loop |
| 1794 | .Lstring_indexof_compressed_matched: |
| 1795 | sub r0, r12 |
| 1796 | pop {r4, r10-r11, pc} |
| 1797 | #endif |
Ian Rogers | 9329bbb | 2013-02-08 19:56:30 -0800 | [diff] [blame] | 1798 | END art_quick_indexof |
buzbee | fc9e6fa | 2012-03-23 15:14:29 -0700 | [diff] [blame] | 1799 | |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1800 | /* Assembly routines used to handle ABI differences. */ |
| 1801 | |
| 1802 | /* double fmod(double a, double b) */ |
| 1803 | .extern fmod |
| 1804 | ENTRY art_quick_fmod |
| 1805 | push {lr} |
| 1806 | .cfi_adjust_cfa_offset 4 |
| 1807 | .cfi_rel_offset lr, 0 |
| 1808 | sub sp, #4 |
| 1809 | .cfi_adjust_cfa_offset 4 |
| 1810 | vmov r0, r1, d0 |
| 1811 | vmov r2, r3, d1 |
| 1812 | bl fmod |
| 1813 | vmov d0, r0, r1 |
| 1814 | add sp, #4 |
| 1815 | .cfi_adjust_cfa_offset -4 |
| 1816 | pop {pc} |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1817 | END art_quick_fmod |
| 1818 | |
| 1819 | /* float fmodf(float a, float b) */ |
| 1820 | .extern fmodf |
| 1821 | ENTRY art_quick_fmodf |
| 1822 | push {lr} |
| 1823 | .cfi_adjust_cfa_offset 4 |
| 1824 | .cfi_rel_offset lr, 0 |
| 1825 | sub sp, #4 |
| 1826 | .cfi_adjust_cfa_offset 4 |
| 1827 | vmov r0, r1, d0 |
| 1828 | bl fmodf |
| 1829 | vmov s0, r0 |
| 1830 | add sp, #4 |
| 1831 | .cfi_adjust_cfa_offset -4 |
| 1832 | pop {pc} |
Goran Jakovljevic | ab4c64b | 2016-04-14 11:46:58 +0200 | [diff] [blame] | 1833 | END art_quick_fmodf |
Zheng Xu | 5667fdb | 2014-10-23 18:29:55 +0800 | [diff] [blame] | 1834 | |
| 1835 | /* int64_t art_d2l(double d) */ |
| 1836 | .extern art_d2l |
| 1837 | ENTRY art_quick_d2l |
| 1838 | vmov r0, r1, d0 |
| 1839 | b art_d2l |
| 1840 | END art_quick_d2l |
| 1841 | |
| 1842 | /* int64_t art_f2l(float f) */ |
| 1843 | .extern art_f2l |
| 1844 | ENTRY art_quick_f2l |
| 1845 | vmov r0, s0 |
| 1846 | b art_f2l |
| 1847 | END art_quick_f2l |
Roland Levillain | 5b3ee56 | 2015-04-14 16:02:41 +0100 | [diff] [blame] | 1848 | |
| 1849 | /* float art_l2f(int64_t l) */ |
| 1850 | .extern art_l2f |
| 1851 | ENTRY art_quick_l2f |
| 1852 | push {lr} |
| 1853 | .cfi_adjust_cfa_offset 4 |
| 1854 | .cfi_rel_offset lr, 0 |
| 1855 | sub sp, #4 |
| 1856 | .cfi_adjust_cfa_offset 4 |
| 1857 | bl art_l2f |
| 1858 | vmov s0, r0 |
| 1859 | add sp, #4 |
| 1860 | .cfi_adjust_cfa_offset -4 |
| 1861 | pop {pc} |
| 1862 | END art_quick_l2f |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 1863 | |
Mathieu Chartier | 36c2271 | 2016-08-12 13:19:44 -0700 | [diff] [blame] | 1864 | .macro CONDITIONAL_CBZ reg, reg_if, dest |
| 1865 | .ifc \reg, \reg_if |
| 1866 | cbz \reg, \dest |
| 1867 | .endif |
| 1868 | .endm |
| 1869 | |
| 1870 | .macro CONDITIONAL_CMPBZ reg, reg_if, dest |
| 1871 | .ifc \reg, \reg_if |
| 1872 | cmp \reg, #0 |
| 1873 | beq \dest |
| 1874 | .endif |
| 1875 | .endm |
| 1876 | |
| 1877 | // Use CBZ if the register is in {r0, r7} otherwise compare and branch. |
| 1878 | .macro SMART_CBZ reg, dest |
| 1879 | CONDITIONAL_CBZ \reg, r0, \dest |
| 1880 | CONDITIONAL_CBZ \reg, r1, \dest |
| 1881 | CONDITIONAL_CBZ \reg, r2, \dest |
| 1882 | CONDITIONAL_CBZ \reg, r3, \dest |
| 1883 | CONDITIONAL_CBZ \reg, r4, \dest |
| 1884 | CONDITIONAL_CBZ \reg, r5, \dest |
| 1885 | CONDITIONAL_CBZ \reg, r6, \dest |
| 1886 | CONDITIONAL_CBZ \reg, r7, \dest |
| 1887 | CONDITIONAL_CMPBZ \reg, r8, \dest |
| 1888 | CONDITIONAL_CMPBZ \reg, r9, \dest |
| 1889 | CONDITIONAL_CMPBZ \reg, r10, \dest |
| 1890 | CONDITIONAL_CMPBZ \reg, r11, \dest |
| 1891 | CONDITIONAL_CMPBZ \reg, r12, \dest |
| 1892 | CONDITIONAL_CMPBZ \reg, r13, \dest |
| 1893 | CONDITIONAL_CMPBZ \reg, r14, \dest |
| 1894 | CONDITIONAL_CMPBZ \reg, r15, \dest |
| 1895 | .endm |
| 1896 | |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 1897 | /* |
| 1898 | * Create a function `name` calling the ReadBarrier::Mark routine, |
| 1899 | * getting its argument and returning its result through register |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1900 | * `reg`, saving and restoring all caller-save registers. |
| 1901 | * |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1902 | * IP is clobbered; `reg` must not be IP. |
| 1903 | * |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1904 | * If `reg` is different from `r0`, the generated function follows a |
| 1905 | * non-standard runtime calling convention: |
| 1906 | * - register `reg` is used to pass the (sole) argument of this |
| 1907 | * function (instead of R0); |
| 1908 | * - register `reg` is used to return the result of this function |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 1909 | * (instead of R0); |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 1910 | * - R0 is treated like a normal (non-argument) caller-save register; |
| 1911 | * - everything else is the same as in the standard runtime calling |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1912 | * convention (e.g. standard callee-save registers are preserved). |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 1913 | */ |
| 1914 | .macro READ_BARRIER_MARK_REG name, reg |
| 1915 | ENTRY \name |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 1916 | // Null check so that we can load the lock word. |
Mathieu Chartier | 36c2271 | 2016-08-12 13:19:44 -0700 | [diff] [blame] | 1917 | SMART_CBZ \reg, .Lret_rb_\name |
| 1918 | // Check lock word for mark bit, if marked return. Use IP for scratch since it is blocked. |
| 1919 | ldr ip, [\reg, MIRROR_OBJECT_LOCK_WORD_OFFSET] |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1920 | tst ip, #LOCK_WORD_MARK_BIT_MASK_SHIFTED |
Mathieu Chartier | 6f198e3 | 2016-11-03 11:15:04 -0700 | [diff] [blame] | 1921 | beq .Lnot_marked_rb_\name |
Mathieu Chartier | 36c2271 | 2016-08-12 13:19:44 -0700 | [diff] [blame] | 1922 | // Already marked, return right away. |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1923 | .Lret_rb_\name: |
Mathieu Chartier | 36c2271 | 2016-08-12 13:19:44 -0700 | [diff] [blame] | 1924 | bx lr |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 1925 | |
Mathieu Chartier | 6f198e3 | 2016-11-03 11:15:04 -0700 | [diff] [blame] | 1926 | .Lnot_marked_rb_\name: |
| 1927 | // Test that both the forwarding state bits are 1. |
| 1928 | mvn ip, ip |
| 1929 | tst ip, #(LOCK_WORD_STATE_FORWARDING_ADDRESS << LOCK_WORD_STATE_SHIFT) |
| 1930 | beq .Lret_forwarding_address\name |
| 1931 | |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 1932 | .Lslow_rb_\name: |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1933 | // Save IP: the kSaveEverything entrypoint art_quick_resolve_string makes a tail call here. |
| 1934 | push {r0-r4, r9, ip, lr} @ save return address, core caller-save registers and ip |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1935 | .cfi_adjust_cfa_offset 32 |
| 1936 | .cfi_rel_offset r0, 0 |
| 1937 | .cfi_rel_offset r1, 4 |
| 1938 | .cfi_rel_offset r2, 8 |
| 1939 | .cfi_rel_offset r3, 12 |
| 1940 | .cfi_rel_offset r4, 16 |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1941 | .cfi_rel_offset r9, 20 |
| 1942 | .cfi_rel_offset ip, 24 |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1943 | .cfi_rel_offset lr, 28 |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1944 | |
| 1945 | .ifnc \reg, r0 |
| 1946 | mov r0, \reg @ pass arg1 - obj from `reg` |
| 1947 | .endif |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1948 | |
| 1949 | vpush {s0-s15} @ save floating-point caller-save registers |
| 1950 | .cfi_adjust_cfa_offset 64 |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1951 | bl artReadBarrierMark @ r0 <- artReadBarrierMark(obj) |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 1952 | vpop {s0-s15} @ restore floating-point registers |
| 1953 | .cfi_adjust_cfa_offset -64 |
Vladimir Marko | 94ce9c2 | 2016-09-30 14:50:51 +0100 | [diff] [blame] | 1954 | |
| 1955 | .ifc \reg, r0 @ Save result to the stack slot or destination register. |
| 1956 | str r0, [sp, #0] |
| 1957 | .else |
| 1958 | .ifc \reg, r1 |
| 1959 | str r0, [sp, #4] |
| 1960 | .else |
| 1961 | .ifc \reg, r2 |
| 1962 | str r0, [sp, #8] |
| 1963 | .else |
| 1964 | .ifc \reg, r3 |
| 1965 | str r0, [sp, #12] |
| 1966 | .else |
| 1967 | .ifc \reg, r4 |
| 1968 | str r0, [sp, #16] |
| 1969 | .else |
| 1970 | .ifc \reg, r9 |
| 1971 | str r0, [sp, #20] |
| 1972 | .else |
| 1973 | mov \reg, r0 |
| 1974 | .endif |
| 1975 | .endif |
| 1976 | .endif |
| 1977 | .endif |
| 1978 | .endif |
| 1979 | .endif |
| 1980 | |
| 1981 | pop {r0-r4, r9, ip, lr} @ restore caller-save registers |
| 1982 | .cfi_adjust_cfa_offset -32 |
| 1983 | .cfi_restore r0 |
| 1984 | .cfi_restore r1 |
| 1985 | .cfi_restore r2 |
| 1986 | .cfi_restore r3 |
| 1987 | .cfi_restore r4 |
| 1988 | .cfi_restore r9 |
| 1989 | .cfi_restore ip |
| 1990 | .cfi_restore lr |
Mathieu Chartier | 36a270a | 2016-07-28 18:08:51 -0700 | [diff] [blame] | 1991 | bx lr |
Mathieu Chartier | 6f198e3 | 2016-11-03 11:15:04 -0700 | [diff] [blame] | 1992 | .Lret_forwarding_address\name: |
| 1993 | // Shift left by the forwarding address shift. This clears out the state bits since they are |
| 1994 | // in the top 2 bits of the lock word. |
| 1995 | mvn ip, ip |
| 1996 | lsl \reg, ip, #LOCK_WORD_STATE_FORWARDING_ADDRESS_SHIFT |
| 1997 | bx lr |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 1998 | END \name |
| 1999 | .endm |
| 2000 | |
Roland Levillain | 4359e61 | 2016-07-20 11:32:19 +0100 | [diff] [blame] | 2001 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg00, r0 |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 2002 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg01, r1 |
| 2003 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg02, r2 |
| 2004 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg03, r3 |
| 2005 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg04, r4 |
| 2006 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg05, r5 |
| 2007 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg06, r6 |
| 2008 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg07, r7 |
| 2009 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg08, r8 |
| 2010 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg09, r9 |
| 2011 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg10, r10 |
| 2012 | READ_BARRIER_MARK_REG art_quick_read_barrier_mark_reg11, r11 |
Orion Hodson | 02e3092 | 2016-12-01 10:33:51 +0000 | [diff] [blame] | 2013 | |
| 2014 | .extern artInvokePolymorphic |
| 2015 | ENTRY art_quick_invoke_polymorphic |
| 2016 | SETUP_SAVE_REFS_AND_ARGS_FRAME r2 |
| 2017 | mov r2, r9 @ pass Thread::Current |
| 2018 | mov r3, sp @ pass SP |
| 2019 | mov r0, #0 @ initialize 64-bit JValue as zero. |
| 2020 | str r0, [sp, #-4]! |
| 2021 | .cfi_adjust_cfa_offset 4 |
| 2022 | str r0, [sp, #-4]! |
| 2023 | .cfi_adjust_cfa_offset 4 |
| 2024 | mov r0, sp @ pass JValue for return result as first argument. |
| 2025 | bl artInvokePolymorphic @ artInvokePolymorphic(JValue, receiver, Thread*, SP) |
| 2026 | sub r0, 'A' @ return value is descriptor of handle's return type. |
| 2027 | cmp r0, 'Z' - 'A' @ check if value is in bounds of handler table |
| 2028 | bgt .Lcleanup_and_return @ and clean-up if not. |
| 2029 | adr r1, .Lhandler_table |
| 2030 | tbb [r0, r1] @ branch to handler for return value based on return type. |
| 2031 | |
| 2032 | .Lstart_of_handlers: |
| 2033 | .Lstore_boolean_result: |
| 2034 | ldrb r0, [sp] @ Copy boolean value to return value of this function. |
| 2035 | b .Lcleanup_and_return |
| 2036 | .Lstore_char_result: |
| 2037 | ldrh r0, [sp] @ Copy char value to return value of this function. |
| 2038 | b .Lcleanup_and_return |
| 2039 | .Lstore_float_result: |
| 2040 | vldr s0, [sp] @ Copy float value from JValue result to the context restored by |
| 2041 | vstr s0, [sp, #16] @ RESTORE_SAVE_REFS_AND_ARGS_FRAME. |
| 2042 | b .Lcleanup_and_return |
| 2043 | .Lstore_double_result: |
| 2044 | vldr d0, [sp] @ Copy double value from JValue result to the context restored by |
| 2045 | vstr d0, [sp, #16] @ RESTORE_SAVE_REFS_AND_ARGS_FRAME. |
| 2046 | b .Lcleanup_and_return |
| 2047 | .Lstore_long_result: |
| 2048 | ldr r1, [sp, #4] @ Copy the upper bits from JValue result to the context restored by |
| 2049 | str r1, [sp, #80] @ RESTORE_SAVE_REFS_AND_ARGS_FRAME. |
| 2050 | // Fall-through for lower bits. |
| 2051 | .Lstore_int_result: |
| 2052 | ldr r0, [sp] @ Copy int value to return value of this function. |
| 2053 | // Fall-through to clean up and return. |
| 2054 | .Lcleanup_and_return: |
| 2055 | add sp, #8 |
| 2056 | .cfi_adjust_cfa_offset -8 |
| 2057 | RESTORE_SAVE_REFS_AND_ARGS_FRAME |
| 2058 | RETURN_OR_DELIVER_PENDING_EXCEPTION_REG r2 |
| 2059 | |
| 2060 | .macro HANDLER_TABLE_OFFSET handler_label |
| 2061 | .byte (\handler_label - .Lstart_of_handlers) / 2 |
| 2062 | .endm |
| 2063 | |
| 2064 | .Lhandler_table: |
| 2065 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // A |
| 2066 | HANDLER_TABLE_OFFSET(.Lstore_int_result) // B (byte) |
| 2067 | HANDLER_TABLE_OFFSET(.Lstore_char_result) // C (char) |
| 2068 | HANDLER_TABLE_OFFSET(.Lstore_double_result) // D (double) |
| 2069 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // E |
| 2070 | HANDLER_TABLE_OFFSET(.Lstore_float_result) // F (float) |
| 2071 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // G |
| 2072 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // H |
| 2073 | HANDLER_TABLE_OFFSET(.Lstore_int_result) // I (int) |
| 2074 | HANDLER_TABLE_OFFSET(.Lstore_long_result) // J (long) |
| 2075 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // K |
| 2076 | HANDLER_TABLE_OFFSET(.Lstore_long_result) // L (object) |
| 2077 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // M |
| 2078 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // N |
| 2079 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // O |
| 2080 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // P |
| 2081 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // Q |
| 2082 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // R |
| 2083 | HANDLER_TABLE_OFFSET(.Lstore_int_result) // S (short) |
| 2084 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // T |
| 2085 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // U |
| 2086 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // V (void) |
| 2087 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // W |
| 2088 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // X |
| 2089 | HANDLER_TABLE_OFFSET(.Lcleanup_and_return) // Y |
| 2090 | HANDLER_TABLE_OFFSET(.Lstore_boolean_result) // Z (boolean) |
| 2091 | .purgem HANDLER_TABLE_OFFSET |
| 2092 | END art_quick_invoke_polymorphic |