Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 1 | #include "asm_support.h" |
| 2 | |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 3 | #if defined(__arm__) |
| 4 | |
| 5 | .balign 4 |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 6 | |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 7 | /* Deliver the given exception */ |
| 8 | .extern artDeliverExceptionFromCode |
| 9 | /* Deliver an exception pending on a thread */ |
| 10 | .extern artDeliverPendingException |
| 11 | |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 12 | /* |
| 13 | * Macro that sets up the callee save frame to conform with |
| 14 | * Runtime::CreateCalleeSaveMethod(kSaveAll) |
| 15 | */ |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 16 | .macro SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 17 | push {r4-r11, lr} @ 9 words of callee saves |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 18 | vpush {s0-s31} |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 19 | sub sp, #12 @ 3 words of space, bottom word will hold Method* |
| 20 | .endm |
| 21 | |
| 22 | /* |
| 23 | * Macro that sets up the callee save frame to conform with |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 24 | * Runtime::CreateCalleeSaveMethod(kRefsOnly). Restoration assumes non-moving GC. |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 25 | */ |
| 26 | .macro SETUP_REF_ONLY_CALLEE_SAVE_FRAME |
| 27 | push {r5-r8, r10-r11, lr} @ 7 words of callee saves |
| 28 | sub sp, #4 @ bottom word will hold Method* |
| 29 | .endm |
| 30 | |
| 31 | .macro RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 32 | ldr lr, [sp, #28] @ restore lr for return |
| 33 | add sp, #32 @ unwind stack |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 34 | .endm |
| 35 | |
| 36 | .macro RESTORE_REF_ONLY_CALLEE_SAVE_FRAME_AND_RETURN |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 37 | ldr lr, [sp, #28] @ restore lr for return |
| 38 | add sp, #32 @ unwind stack |
| 39 | bx lr @ return |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 40 | .endm |
| 41 | |
| 42 | /* |
| 43 | * Macro that sets up the callee save frame to conform with |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 44 | * Runtime::CreateCalleeSaveMethod(kRefsAndArgs). Restoration assumes non-moving GC. |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 45 | */ |
| 46 | .macro SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 47 | push {r1-r3, r5-r8, r10-r11, lr} @ 10 words of callee saves |
| 48 | sub sp, #8 @ 2 words of space, bottom word will hold Method* |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 49 | .endm |
| 50 | |
| 51 | .macro RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 52 | ldr r1, [sp, #8] @ restore non-callee save r1 |
| 53 | ldrd r2, [sp, #12] @ restore non-callee saves r2-r3 |
| 54 | ldr lr, [sp, #44] @ restore lr |
| 55 | add sp, #48 @ rewind sp |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 56 | .endm |
| 57 | |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 58 | /* |
| 59 | * Macro that set calls through to artDeliverPendingExceptionFromCode, where the pending |
| 60 | * exception is Thread::Current()->exception_ |
| 61 | */ |
| 62 | .macro DELIVER_PENDING_EXCEPTION |
| 63 | SETUP_CALLEE_SAVE_FRAME @ save callee saves for throw |
| 64 | mov r0, r9 @ pass Thread::Current |
| 65 | mov r1, sp @ pass SP |
| 66 | b artDeliverPendingExceptionFromCode @ artDeliverPendingExceptionFromCode(Thread*, SP) |
| 67 | .endm |
| 68 | |
Brian Carlstrom | 6f495f2 | 2011-10-10 15:05:03 -0700 | [diff] [blame] | 69 | .global art_do_long_jump |
Brian Carlstrom | 6f495f2 | 2011-10-10 15:05:03 -0700 | [diff] [blame] | 70 | /* |
| 71 | * On entry r0 is uint32_t* gprs_ and r1 is uint32_t* fprs_ |
| 72 | */ |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 73 | art_do_long_jump: |
Brian Carlstrom | 6f495f2 | 2011-10-10 15:05:03 -0700 | [diff] [blame] | 74 | vldm r1, {s0-s31} @ load all fprs from argument fprs_ |
| 75 | ldr r2, [r0, #60] @ r2 = r15 (PC from gprs_ 60=4*15) |
| 76 | add r0, r0, #12 @ increment r0 to skip gprs_[0..2] 12=4*3 |
| 77 | ldm r0, {r3-r14} @ load remaining gprs from argument gprs_ |
| 78 | mov r0, #0 @ clear result registers r0 and r1 |
| 79 | mov r1, #0 |
| 80 | bx r2 @ do long jump |
| 81 | |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 82 | .global art_deliver_exception_from_code |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 83 | /* |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 84 | * Called by managed code, saves mosts registers (forms basis of long jump context) and passes |
| 85 | * the bottom of the stack. artDeliverExceptionFromCode will place the callee save Method* at |
| 86 | * the bottom of the thread. On entry r0 holds Throwable* |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 87 | */ |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 88 | art_deliver_exception_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 89 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 90 | mov r1, r9 @ pass Thread::Current |
| 91 | mov r2, sp @ pass SP |
| 92 | b artDeliverExceptionFromCode @ artDeliverExceptionFromCode(Throwable*, Thread*, SP) |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 93 | |
| 94 | .global art_throw_null_pointer_exception_from_code |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 95 | .extern artThrowNullPointerExceptionFromCode |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 96 | /* |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 97 | * Called by managed code to create and deliver a NullPointerException |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 98 | */ |
| 99 | art_throw_null_pointer_exception_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 100 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 101 | mov r0, r9 @ pass Thread::Current |
| 102 | mov r1, sp @ pass SP |
| 103 | b artThrowNullPointerExceptionFromCode @ artThrowNullPointerExceptionFromCode(Thread*, SP) |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 104 | |
| 105 | .global art_throw_div_zero_from_code |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 106 | .extern artThrowDivZeroFromCode |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 107 | /* |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 108 | * Called by managed code to create and deliver an ArithmeticException |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 109 | */ |
| 110 | art_throw_div_zero_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 111 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 112 | mov r0, r9 @ pass Thread::Current |
| 113 | mov r1, sp @ pass SP |
| 114 | b artThrowDivZeroFromCode @ artThrowDivZeroFromCode(Thread*, SP) |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 115 | |
| 116 | .global art_throw_array_bounds_from_code |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 117 | .extern artThrowArrayBoundsFromCode |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 118 | /* |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 119 | * Called by managed code to create and deliver an ArrayIndexOutOfBoundsException |
Ian Rogers | 9651f42 | 2011-09-19 20:26:07 -0700 | [diff] [blame] | 120 | */ |
| 121 | art_throw_array_bounds_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 122 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 123 | mov r2, r9 @ pass Thread::Current |
| 124 | mov r3, sp @ pass SP |
| 125 | b artThrowArrayBoundsFromCode @ artThrowArrayBoundsFromCode(index, limit, Thread*, SP) |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 126 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 127 | .global art_throw_stack_overflow_from_code |
| 128 | .extern artThrowStackOverflowFromCode |
| 129 | art_throw_stack_overflow_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 130 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 131 | mov r1, r9 @ pass Thread::Current |
| 132 | mov r2, sp @ pass SP |
| 133 | b artThrowStackOverflowFromCode @ artThrowStackOverflowFromCode(method, Thread*, SP) |
| 134 | |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 135 | .global art_throw_neg_array_size_from_code |
| 136 | .extern artThrowNegArraySizeFromCode |
| 137 | art_throw_neg_array_size_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 138 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 139 | mov r1, r9 @ pass Thread::Current |
| 140 | mov r2, sp @ pass SP |
| 141 | b artThrowNegArraySizeFromCode @ artThrowNegArraySizeFromCode(size, Thread*, SP) |
| 142 | |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 143 | .global art_throw_no_such_method_from_code |
| 144 | .extern artThrowNoSuchMethodFromCode |
| 145 | art_throw_no_such_method_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 146 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 147 | mov r1, r9 @ pass Thread::Current |
| 148 | mov r2, sp @ pass SP |
| 149 | b artThrowNoSuchMethodFromCode @ artThrowNoSuchMethodFromCode(method_idx, Thread*, SP) |
| 150 | |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 151 | .global art_throw_verification_error_from_code |
| 152 | .extern artThrowVerificationErrorFromCode |
| 153 | art_throw_verification_error_from_code: |
Ian Rogers | 15fdb8c | 2011-09-25 15:45:07 -0700 | [diff] [blame] | 154 | SETUP_CALLEE_SAVE_FRAME |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 155 | mov r2, r9 @ pass Thread::Current |
| 156 | mov r3, sp @ pass SP |
Elliott Hughes | 6c8867d | 2011-10-03 16:34:05 -0700 | [diff] [blame] | 157 | b artThrowVerificationErrorFromCode @ artThrowVerificationErrorFromCode(kind, ref, Thread*, SP) |
Ian Rogers | c0c8dc8 | 2011-09-24 18:15:59 -0700 | [diff] [blame] | 158 | |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 159 | .global art_invoke_interface_trampoline |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 160 | .extern artFindInterfaceMethodInCacheFromCode |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 161 | /* |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 162 | * All generated callsites for interface invokes will load arguments as usual - except instead |
| 163 | * of loading arg0/r0 with the target Method*, arg0/r0 will contain the method_idx. This |
| 164 | * wrapper will save arg1-arg3, load the caller's Method*, align the stack and call the helper |
| 165 | * artFindInterfaceMethodInCacheFromCode(idx, this, method); |
| 166 | * NOTE: "this" is first visable argument of the target, and so can be found in arg1/r1. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 167 | * |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 168 | * artFindInterfaceMethodInCacheFromCode will attempt to locate the target and return a 64-bit |
| 169 | * result in r0/r1 consisting of the target Method* in r0 and method->code_ in r1. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 170 | * |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 171 | * If unsuccessful, artFindInterfaceMethodInCacheFromCode will return NULL/NULL. There will be |
| 172 | * a pending exception in the thread and we branch to another stub to deliver it. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 173 | * |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 174 | * On success this wrapper will restore arguments and *jump* to the target, leaving the lr |
| 175 | * pointing back to the original caller. |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 176 | */ |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 177 | art_invoke_interface_trampoline: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 178 | SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME @ save callee saves in case allocation triggers GC |
Ian Rogers | caab8c4 | 2011-10-12 12:11:18 -0700 | [diff] [blame] | 179 | ldr r2, [sp, #48] @ pass caller Method* |
| 180 | mov r3, r9 @ pass Thread::Current |
| 181 | str sp, [sp, #0] @ pass SP |
| 182 | bl artFindInterfaceMethodInCacheFromCode @ (method_idx, this, caller, Thread*, SP) |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 183 | mov r12, r1 @ save r0->code_ |
| 184 | RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME |
| 185 | cmp r0, #0 @ did we find the target? |
| 186 | bxne r12 @ tail call to target if so |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 187 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 188 | |
| 189 | .global art_handle_fill_data_from_code |
| 190 | .extern artHandleFillArrayDataFromCode |
| 191 | /* |
| 192 | * Entry from managed code that calls artHandleFillArrayDataFromCode and delivers exception on |
| 193 | * failure. |
| 194 | */ |
| 195 | art_handle_fill_data_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 196 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC |
| 197 | mov r2, r9 @ pass Thread::Current |
| 198 | mov r3, sp @ pass SP |
| 199 | bl artHandleFillArrayDataFromCode @ (Array* array, const uint16_t* table, Thread*, SP) |
| 200 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 201 | cmp r0, #0 @ success? |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 202 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 203 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 204 | |
| 205 | .global art_lock_object_from_code |
| 206 | .extern artLockObjectFromCode |
| 207 | /* |
| 208 | * Entry from managed code that calls artLockObjectFromCode, may block for GC |
| 209 | */ |
| 210 | art_lock_object_from_code: |
| 211 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case we block |
| 212 | mov r1, r9 @ pass Thread::Current |
| 213 | mov r2, sp @ pass SP |
| 214 | bl artLockObjectFromCode @ (Object* obj, Thread*, SP) |
| 215 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME_AND_RETURN |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 216 | |
| 217 | .global art_unlock_object_from_code |
| 218 | .extern artUnlockObjectFromCode |
| 219 | /* |
| 220 | * Entry from managed code that calls artUnlockObjectFromCode and delivers exception on failure. |
| 221 | */ |
| 222 | art_unlock_object_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 223 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC |
| 224 | mov r1, r9 @ pass Thread::Current |
| 225 | mov r2, sp @ pass SP |
| 226 | bl artUnlockObjectFromCode @ (Object* obj, Thread*, SP) |
| 227 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 228 | cmp r0, #0 @ success? |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 229 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 230 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 231 | |
| 232 | .global art_check_cast_from_code |
| 233 | .extern artCheckCastFromCode |
| 234 | /* |
| 235 | * Entry from managed code that calls artCheckCastFromCode and delivers exception on failure. |
| 236 | */ |
| 237 | art_check_cast_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 238 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC |
| 239 | mov r2, r9 @ pass Thread::Current |
| 240 | mov r3, sp @ pass SP |
| 241 | bl artCheckCastFromCode @ (Class* a, Class* b, Thread*, SP) |
| 242 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 243 | cmp r0, #0 @ success? |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 244 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 245 | DELIVER_PENDING_EXCEPTION |
buzbee | 4a3164f | 2011-09-03 11:25:10 -0700 | [diff] [blame] | 246 | |
Ian Rogers | e51a511 | 2011-09-23 14:16:35 -0700 | [diff] [blame] | 247 | .global art_can_put_array_element_from_code |
| 248 | .extern artCanPutArrayElementFromCode |
| 249 | /* |
| 250 | * Entry from managed code that calls artCanPutArrayElementFromCode and delivers exception on |
| 251 | * failure. |
| 252 | */ |
| 253 | art_can_put_array_element_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 254 | cmp r0, #0 @ return if element == NULL |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 255 | bxeq lr |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 256 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC |
| 257 | mov r2, r9 @ pass Thread::Current |
| 258 | mov r3, sp @ pass SP |
| 259 | bl artCanPutArrayElementFromCode @ (Object* element, Class* array_class, Thread*, SP) |
| 260 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 261 | cmp r0, #0 @ success? |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 262 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 263 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | e51a511 | 2011-09-23 14:16:35 -0700 | [diff] [blame] | 264 | |
Ian Rogers | cbba6ac | 2011-09-22 16:28:37 -0700 | [diff] [blame] | 265 | .global art_initialize_static_storage_from_code |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 266 | .extern artInitializeStaticStorageFromCode |
Ian Rogers | cbba6ac | 2011-09-22 16:28:37 -0700 | [diff] [blame] | 267 | /* |
| 268 | * Entry from managed code when uninitialized static storage, this stub will run the class |
| 269 | * initializer and deliver the exception on error. On success the static storage base is |
| 270 | * returned. |
| 271 | */ |
| 272 | art_initialize_static_storage_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 273 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 274 | mov r2, r9 @ pass Thread::Current |
| 275 | mov r3, sp @ pass SP |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 276 | @ artInitializeStaticStorageFromCode(uint32_t type_idx, Method* referrer, Thread*, SP) |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 277 | bl artInitializeStaticStorageFromCode |
| 278 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 279 | cmp r0, #0 @ success if result is non-null |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 280 | bxne lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 281 | DELIVER_PENDING_EXCEPTION |
| 282 | |
| 283 | .global art_find_instance_field_from_code |
| 284 | .extern artFindInstanceFieldFromCode |
| 285 | /* |
| 286 | * Called by managed code to resolve a field of an object |
| 287 | */ |
| 288 | art_find_instance_field_from_code: |
| 289 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 290 | mov r2, r9 @ pass Thread::Current |
| 291 | mov r3, sp @ pass SP |
| 292 | bl artFindInstanceFieldFromCode @ (uint32_t field_idx, const Method* referrer, Thread*, SP) |
| 293 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 294 | cmp r0, #0 @ success if result is non-null |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 295 | bxne lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 296 | DELIVER_PENDING_EXCEPTION |
| 297 | |
| 298 | .global art_get32_static_from_code |
| 299 | .extern artGet32StaticFromCode |
| 300 | /* |
| 301 | * Called by managed code to resolve a static field and load a 32-bit primitive value |
| 302 | */ |
| 303 | art_get32_static_from_code: |
| 304 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 305 | mov r2, r9 @ pass Thread::Current |
| 306 | mov r3, sp @ pass SP |
| 307 | bl artGet32StaticFromCode @ (uint32_t field_idx, const Method* referrer, Thread*, SP) |
| 308 | ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
| 309 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 310 | cmp r12, #0 @ success if no exception is pending |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 311 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 312 | DELIVER_PENDING_EXCEPTION |
| 313 | |
| 314 | .global art_get64_static_from_code |
| 315 | .extern artGet64StaticFromCode |
| 316 | /* |
| 317 | * Called by managed code to resolve a static field and load a 64-bit primitive value |
| 318 | */ |
| 319 | art_get64_static_from_code: |
| 320 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 321 | mov r2, r9 @ pass Thread::Current |
| 322 | mov r3, sp @ pass SP |
| 323 | bl artGet64StaticFromCode @ (uint32_t field_idx, const Method* referrer, Thread*, SP) |
| 324 | ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
| 325 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 326 | cmp r12, #0 @ success if no exception is pending |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 327 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 328 | DELIVER_PENDING_EXCEPTION |
| 329 | |
| 330 | .global art_get_obj_static_from_code |
| 331 | .extern artGetObjStaticFromCode |
| 332 | /* |
| 333 | * Called by managed code to resolve a static field and load an object reference |
| 334 | */ |
| 335 | art_get_obj_static_from_code: |
| 336 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 337 | mov r2, r9 @ pass Thread::Current |
| 338 | mov r3, sp @ pass SP |
| 339 | bl artGetObjStaticFromCode @ (uint32_t field_idx, const Method* referrer, Thread*, SP) |
| 340 | ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
| 341 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 342 | cmp r12, #0 @ success if no exception is pending |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 343 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 344 | DELIVER_PENDING_EXCEPTION |
| 345 | |
| 346 | .global art_set32_static_from_code |
| 347 | .extern artSet32StaticFromCode |
| 348 | /* |
| 349 | * Called by managed code to resolve a static field and store a 32-bit primitive value |
| 350 | */ |
| 351 | art_set32_static_from_code: |
| 352 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 353 | mov r3, r9 @ pass Thread::Current |
| 354 | str sp, [sp, #0] @ pass SP |
| 355 | bl artSet32StaticFromCode @ (field_idx, referrer, new_val, Thread*, SP) |
| 356 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 357 | cmp r0, #0 @ success if result is 0 |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 358 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 359 | DELIVER_PENDING_EXCEPTION |
| 360 | |
| 361 | .global art_set64_static_from_code |
| 362 | .extern artSet32StaticFromCode |
| 363 | /* |
| 364 | * Called by managed code to resolve a static field and store a 64-bit primitive value |
| 365 | */ |
| 366 | art_set64_static_from_code: |
| 367 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 368 | mov r12, sp @ save SP |
| 369 | sub sp, #8 @ grow frame for alignment with stack args |
| 370 | push {r9, r12} @ pass Thread::Current and SP |
| 371 | bl artSet64StaticFromCode @ (field_idx, referrer, new_val, Thread*, SP) |
| 372 | add sp, #16 @ release out args |
| 373 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME @ TODO: we can clearly save an add here |
| 374 | cmp r0, #0 @ success if result is 0 |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 375 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 376 | DELIVER_PENDING_EXCEPTION |
| 377 | |
| 378 | .global art_set_obj_static_from_code |
| 379 | .extern artSetObjStaticFromCode |
| 380 | /* |
| 381 | * Called by managed code to resolve a static field and store an object reference |
| 382 | */ |
| 383 | art_set_obj_static_from_code: |
| 384 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 385 | mov r3, r9 @ pass Thread::Current |
| 386 | str sp, [sp, #0] @ pass SP |
| 387 | bl artSetObjStaticFromCode @ (field_idx, referrer, new_val, Thread*, SP) |
| 388 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 389 | cmp r0, #0 @ success if result is 0 |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 390 | bxeq lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 391 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | cbba6ac | 2011-09-22 16:28:37 -0700 | [diff] [blame] | 392 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 393 | .global art_resolve_string_from_code |
| 394 | .extern artResolveStringFromCode |
| 395 | /* |
Ian Rogers | caab8c4 | 2011-10-12 12:11:18 -0700 | [diff] [blame] | 396 | * Entry from managed code to resolve a string, this stub will allocate a String and deliver an |
| 397 | * exception on error. On success the String is returned. R0 holds the referring method, |
| 398 | * R1 holds the string index. The fast path check for hit in strings cache has already been |
| 399 | * performed. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 400 | */ |
Brian Carlstrom | 6f495f2 | 2011-10-10 15:05:03 -0700 | [diff] [blame] | 401 | art_resolve_string_from_code: |
Ian Rogers | caab8c4 | 2011-10-12 12:11:18 -0700 | [diff] [blame] | 402 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 403 | mov r2, r9 @ pass Thread::Current |
| 404 | mov r3, sp @ pass SP |
| 405 | @ artResolveStringFromCode(Method* referrer, uint32_t string_idx, Thread*, SP) |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 406 | bl artResolveStringFromCode |
| 407 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
Ian Rogers | caab8c4 | 2011-10-12 12:11:18 -0700 | [diff] [blame] | 408 | cmp r0, #0 @ success if result is non-null |
| 409 | bxne lr @ return on success |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 410 | DELIVER_PENDING_EXCEPTION |
| 411 | |
Brian Carlstrom | 6fd03fb | 2011-10-17 16:11:00 -0700 | [diff] [blame] | 412 | .global art_object_init_from_code |
| 413 | .extern artObjectInitFromCode |
| 414 | /* |
| 415 | * Entry from managed code to perform Object.<init> string. R0 holds the object to initialize. |
| 416 | * On success, 0 is returned. Otherwise there is a pending exception to deliver. |
| 417 | */ |
| 418 | art_object_init_from_code: |
| 419 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 420 | mov r1, r9 @ pass Thread::Current |
| 421 | mov r2, sp @ pass SP |
| 422 | @ artObjectInitFromCode(Object* o, Thread*, SP) |
| 423 | bl artObjectInitFromCode |
| 424 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 425 | cmp r0, #0 @ success if result is zero |
| 426 | bxeq lr @ return on success |
| 427 | DELIVER_PENDING_EXCEPTION |
| 428 | |
Ian Rogers | 21d9e83 | 2011-09-23 17:05:09 -0700 | [diff] [blame] | 429 | .global art_alloc_object_from_code |
| 430 | .extern artAllocObjectFromCode |
| 431 | /* |
| 432 | * Called by managed code to allocate an object |
| 433 | */ |
| 434 | art_alloc_object_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 435 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 436 | mov r2, r9 @ pass Thread::Current |
| 437 | mov r3, sp @ pass SP |
| 438 | bl artAllocObjectFromCode @ (uint32_t type_idx, Method* method, Thread*, SP) |
| 439 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 440 | cmp r0, #0 @ success if result is non-null |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 441 | bxne lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 442 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | 21d9e83 | 2011-09-23 17:05:09 -0700 | [diff] [blame] | 443 | |
Elliott Hughes | b408de7 | 2011-10-04 14:35:05 -0700 | [diff] [blame] | 444 | .global art_alloc_array_from_code |
| 445 | .extern artAllocArrayFromCode |
Ian Rogers | b886da8 | 2011-09-23 16:27:54 -0700 | [diff] [blame] | 446 | /* |
| 447 | * Called by managed code to allocate an array |
| 448 | */ |
Elliott Hughes | b408de7 | 2011-10-04 14:35:05 -0700 | [diff] [blame] | 449 | art_alloc_array_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 450 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 451 | mov r3, r9 @ pass Thread::Current |
| 452 | str sp, [sp, #0] @ pass SP |
| 453 | @ artAllocArrayFromCode(uint32_t type_idx, Method* method, int32_t component_count, Thread*, SP) |
| 454 | bl artAllocArrayFromCode |
| 455 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
| 456 | cmp r0, #0 @ success if result is non-null |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 457 | bxne lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 458 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | b886da8 | 2011-09-23 16:27:54 -0700 | [diff] [blame] | 459 | |
Elliott Hughes | b408de7 | 2011-10-04 14:35:05 -0700 | [diff] [blame] | 460 | .global art_check_and_alloc_array_from_code |
| 461 | .extern artCheckAndAllocArrayFromCode |
Ian Rogers | b886da8 | 2011-09-23 16:27:54 -0700 | [diff] [blame] | 462 | /* |
| 463 | * Called by managed code to allocate an array |
| 464 | */ |
Elliott Hughes | b408de7 | 2011-10-04 14:35:05 -0700 | [diff] [blame] | 465 | art_check_and_alloc_array_from_code: |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 466 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC |
| 467 | mov r3, r9 @ pass Thread::Current |
| 468 | str sp, [sp, #0] @ pass SP |
| 469 | @ artCheckAndAllocArrayFromCode(uint32_t type_idx, Method* method, int32_t count, Thread* , SP) |
| 470 | bl artCheckAndAllocArrayFromCode |
| 471 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 472 | cmp r0, #0 @ success if result is non-null |
Ian Rogers | ae67599 | 2011-10-09 17:10:22 -0700 | [diff] [blame] | 473 | bxne lr @ return on success |
Ian Rogers | ce9eca6 | 2011-10-07 17:11:03 -0700 | [diff] [blame] | 474 | DELIVER_PENDING_EXCEPTION |
Ian Rogers | b886da8 | 2011-09-23 16:27:54 -0700 | [diff] [blame] | 475 | |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 476 | .global art_test_suspend |
Ian Rogers | 4a510d8 | 2011-10-09 14:30:24 -0700 | [diff] [blame] | 477 | .extern artTestSuspendFromCode |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 478 | /* |
| 479 | * Called by managed code when the value in rSUSPEND has been decremented to 0 |
| 480 | */ |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 481 | art_test_suspend: |
| 482 | ldr r0, [rSELF, #THREAD_SUSPEND_COUNT_OFFSET] |
| 483 | mov rSUSPEND, #SUSPEND_CHECK_INTERVAL @ reset rSUSPEND to SUSPEND_CHECK_INTERVAL |
| 484 | cmp r0, #0 @ check Thread::Current()->suspend_count_ == 0 |
| 485 | bxeq rLR @ return if suspend_count_ == 0 |
| 486 | mov r0, rSELF |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 487 | SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves for stack crawl |
buzbee | c10717a | 2011-10-09 14:40:13 -0700 | [diff] [blame] | 488 | mov r1, sp |
Ian Rogers | 4a510d8 | 2011-10-09 14:30:24 -0700 | [diff] [blame] | 489 | bl artTestSuspendFromCode @ (Thread*, SP) |
Ian Rogers | 4f0d07c | 2011-10-06 23:38:47 -0700 | [diff] [blame] | 490 | RESTORE_REF_ONLY_CALLEE_SAVE_FRAME_AND_RETURN |
| 491 | |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 492 | .global art_proxy_invoke_handler |
| 493 | .extern artProxyInvokeHandler |
| 494 | /* |
| 495 | * Called by managed code that is attempting to call a method on a proxy class. On entry |
| 496 | * r0 holds the proxy method; r1, r2 and r3 may contain arguments |
| 497 | */ |
| 498 | art_proxy_invoke_handler: |
| 499 | SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME |
| 500 | str r0, [sp, #0] @ place proxy method at bottom of frame |
| 501 | mov r2, r9 @ pass Thread::Current |
| 502 | add r3, sp, #12 @ pointer to r2/r3/LR/caller's Method**/out-args as second arg |
| 503 | blx artProxyInvokeHandler @ (Method* proxy method, receiver, Thread*, args...) |
| 504 | ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_ |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 505 | ldr lr, [sp, #44] @ restore lr |
| 506 | ldrd r0, [sp, #12] @ load r0/r1 from r2/r3 that were overwritten with the out args |
| 507 | add sp, #48 @ pop frame |
Ian Rogers | dfcdf1a | 2011-10-10 17:50:35 -0700 | [diff] [blame] | 508 | cmp r12, #0 @ success if no exception is pending |
| 509 | bxeq lr @ return on success |
| 510 | DELIVER_PENDING_EXCEPTION |
| 511 | |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 512 | .global art_shl_long |
| 513 | art_shl_long: |
| 514 | /* |
| 515 | * Long integer shift. This is different from the generic 32/64-bit |
| 516 | * binary operations because vAA/vBB are 64-bit but vCC (the shift |
| 517 | * distance) is 32-bit. Also, Dalvik requires us to ignore all but the low |
| 518 | * 6 bits. |
| 519 | * On entry: |
| 520 | * r0: low word |
| 521 | * r1: high word |
| 522 | * r2: shift count |
| 523 | */ |
| 524 | /* shl-long vAA, vBB, vCC */ |
| 525 | and r2, r2, #63 @ r2<- r2 & 0x3f |
| 526 | mov r1, r1, asl r2 @ r1<- r1 << r2 |
| 527 | rsb r3, r2, #32 @ r3<- 32 - r2 |
| 528 | orr r1, r1, r0, lsr r3 @ r1<- r1 | (r0 << (32-r2)) |
| 529 | subs ip, r2, #32 @ ip<- r2 - 32 |
| 530 | movpl r1, r0, asl ip @ if r2 >= 32, r1<- r0 << (r2-32) |
| 531 | mov r0, r0, asl r2 @ r0<- r0 << r2 |
| 532 | bx lr |
| 533 | |
| 534 | .balign 4 |
| 535 | .global art_shr_long |
| 536 | art_shr_long: |
| 537 | /* |
| 538 | * Long integer shift. This is different from the generic 32/64-bit |
| 539 | * binary operations because vAA/vBB are 64-bit but vCC (the shift |
| 540 | * distance) is 32-bit. Also, Dalvik requires us to ignore all but the low |
| 541 | * 6 bits. |
| 542 | * On entry: |
| 543 | * r0: low word |
| 544 | * r1: high word |
| 545 | * r2: shift count |
| 546 | */ |
| 547 | /* shr-long vAA, vBB, vCC */ |
| 548 | and r2, r2, #63 @ r0<- r0 & 0x3f |
| 549 | mov r0, r0, lsr r2 @ r0<- r2 >> r2 |
| 550 | rsb r3, r2, #32 @ r3<- 32 - r2 |
| 551 | orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2)) |
| 552 | subs ip, r2, #32 @ ip<- r2 - 32 |
| 553 | movpl r0, r1, asr ip @ if r2 >= 32, r0<-r1 >> (r2-32) |
| 554 | mov r1, r1, asr r2 @ r1<- r1 >> r2 |
| 555 | bx lr |
| 556 | |
| 557 | .balign 4 |
| 558 | .global art_ushr_long |
| 559 | art_ushr_long: |
| 560 | /* |
| 561 | * Long integer shift. This is different from the generic 32/64-bit |
| 562 | * binary operations because vAA/vBB are 64-bit but vCC (the shift |
| 563 | * distance) is 32-bit. Also, Dalvik requires us to ignore all but the low |
| 564 | * 6 bits. |
| 565 | * On entry: |
| 566 | * r0: low word |
| 567 | * r1: high word |
| 568 | * r2: shift count |
| 569 | */ |
| 570 | /* ushr-long vAA, vBB, vCC */ |
| 571 | and r2, r2, #63 @ r0<- r0 & 0x3f |
| 572 | mov r0, r0, lsr r2 @ r0<- r2 >> r2 |
| 573 | rsb r3, r2, #32 @ r3<- 32 - r2 |
| 574 | orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2)) |
| 575 | subs ip, r2, #32 @ ip<- r2 - 32 |
| 576 | movpl r0, r1, lsr ip @ if r2 >= 32, r0<-r1 >>> (r2-32) |
| 577 | mov r1, r1, lsr r2 @ r1<- r1 >>> r2 |
| 578 | bx lr |
| 579 | |
| 580 | #endif |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 581 | |
| 582 | #if defined(__i386__) |
| 583 | |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 584 | .global art_deliver_exception_from_code |
| 585 | .extern artDeliverExceptionFromCode |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 586 | /* |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 587 | * Called by managed code, saves callee saves and then calls artThrowException |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 588 | * that will place a mock Method* at the bottom of the stack. |
| 589 | * EAX holds the exception. |
| 590 | */ |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 591 | art_deliver_exception_from_code: |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 592 | // Create frame |
| 593 | pushl %edi // Save callee saves |
| 594 | pushl %esi |
| 595 | pushl %ebp |
| 596 | pushl %ebx |
| 597 | pushl $0 |
| 598 | pushl $0 |
| 599 | pushl $0 // Will be clobbered to be Method* |
| 600 | mov %esp, %ecx |
| 601 | // Outgoing argument set up |
Ian Rogers | ff1ed47 | 2011-09-20 13:46:24 -0700 | [diff] [blame] | 602 | pushl $0 // Alignment padding |
| 603 | pushl %ecx // pass SP |
| 604 | pushl %fs:THREAD_SELF_OFFSET // pass fs:offsetof(Thread,self_) |
| 605 | pushl %eax // pass Throwable* |
| 606 | call artDeliverExceptionFromCode // artDeliverExceptionFromCode(Throwable*, Thread*, SP) |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 607 | int3 |
| 608 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 609 | // TODO |
| 610 | .global art_proxy_invoke_handler |
| 611 | art_proxy_invoke_handler: |
| 612 | int3 |
| 613 | |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 614 | #endif |