Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 1 | // This file is generated from a similarly-named Perl script in the BoringSSL |
| 2 | // source tree. Do not edit by hand. |
| 3 | |
| 4 | #if defined(__has_feature) |
| 5 | #if __has_feature(memory_sanitizer) && !defined(OPENSSL_NO_ASM) |
| 6 | #define OPENSSL_NO_ASM |
| 7 | #endif |
| 8 | #endif |
| 9 | |
| 10 | #if !defined(OPENSSL_NO_ASM) |
| 11 | #if defined(BORINGSSL_PREFIX) |
| 12 | #include <boringssl_prefix_symbols_asm.h> |
| 13 | #endif |
| 14 | .syntax unified |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | .text |
| 20 | |
| 21 | @ abi_test_trampoline loads callee-saved registers from |state|, calls |func| |
| 22 | @ with |argv|, then saves the callee-saved registers into |state|. It returns |
| 23 | @ the result of |func|. The |unwind| argument is unused. |
| 24 | @ uint32_t abi_test_trampoline(void (*func)(...), CallerState *state, |
| 25 | @ const uint32_t *argv, size_t argc, |
| 26 | @ int unwind); |
| 27 | |
| 28 | .globl _abi_test_trampoline |
| 29 | .private_extern _abi_test_trampoline |
| 30 | .align 4 |
| 31 | _abi_test_trampoline: |
| 32 | Labi_test_trampoline_begin: |
| 33 | @ Save parameters and all callee-saved registers. For convenience, we |
| 34 | @ save r9 on iOS even though it's volatile. |
| 35 | vstmdb sp!, {d8,d9,d10,d11,d12,d13,d14,d15} |
| 36 | stmdb sp!, {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,lr} |
| 37 | |
| 38 | @ Reserve stack space for six (10-4) stack parameters, plus an extra 4 |
| 39 | @ bytes to keep it 8-byte-aligned (see AAPCS, section 5.3). |
| 40 | sub sp, sp, #28 |
| 41 | |
| 42 | @ Every register in AAPCS is either non-volatile or a parameter (except |
| 43 | @ r9 on iOS), so this code, by the actual call, loses all its scratch |
| 44 | @ registers. First fill in stack parameters while there are registers |
| 45 | @ to spare. |
| 46 | cmp r3, #4 |
| 47 | bls Lstack_args_done |
| 48 | mov r4, sp @ r4 is the output pointer. |
| 49 | add r5, r2, r3, lsl #2 @ Set r5 to the end of argv. |
| 50 | add r2, r2, #16 @ Skip four arguments. |
| 51 | Lstack_args_loop: |
| 52 | ldr r6, [r2], #4 |
| 53 | cmp r2, r5 |
| 54 | str r6, [r4], #4 |
| 55 | bne Lstack_args_loop |
| 56 | |
| 57 | Lstack_args_done: |
| 58 | @ Load registers from |r1|. |
| 59 | vldmia r1!, {d8,d9,d10,d11,d12,d13,d14,d15} |
| 60 | #if defined(__APPLE__) |
| 61 | @ r9 is not volatile on iOS. |
| 62 | ldmia r1!, {r4,r5,r6,r7,r8,r10-r11} |
| 63 | #else |
| 64 | ldmia r1!, {r4,r5,r6,r7,r8,r9,r10,r11} |
| 65 | #endif |
| 66 | |
| 67 | @ Load register parameters. This uses up our remaining registers, so we |
| 68 | @ repurpose lr as scratch space. |
| 69 | ldr r3, [sp, #40] @ Reload argc. |
| 70 | ldr lr, [sp, #36] @ Load argv into lr. |
| 71 | cmp r3, #3 |
| 72 | bhi Larg_r3 |
| 73 | beq Larg_r2 |
| 74 | cmp r3, #1 |
| 75 | bhi Larg_r1 |
| 76 | beq Larg_r0 |
| 77 | b Largs_done |
| 78 | |
| 79 | Larg_r3: |
| 80 | ldr r3, [lr, #12] @ argv[3] |
| 81 | Larg_r2: |
| 82 | ldr r2, [lr, #8] @ argv[2] |
| 83 | Larg_r1: |
| 84 | ldr r1, [lr, #4] @ argv[1] |
| 85 | Larg_r0: |
| 86 | ldr r0, [lr] @ argv[0] |
| 87 | Largs_done: |
| 88 | |
| 89 | @ With every other register in use, load the function pointer into lr |
| 90 | @ and call the function. |
| 91 | ldr lr, [sp, #28] |
| 92 | blx lr |
| 93 | |
| 94 | @ r1-r3 are free for use again. The trampoline only supports |
| 95 | @ single-return functions. Pass r4-r11 to the caller. |
| 96 | ldr r1, [sp, #32] |
| 97 | vstmia r1!, {d8,d9,d10,d11,d12,d13,d14,d15} |
| 98 | #if defined(__APPLE__) |
| 99 | @ r9 is not volatile on iOS. |
| 100 | stmia r1!, {r4,r5,r6,r7,r8,r10-r11} |
| 101 | #else |
| 102 | stmia r1!, {r4,r5,r6,r7,r8,r9,r10,r11} |
| 103 | #endif |
| 104 | |
| 105 | @ Unwind the stack and restore registers. |
| 106 | add sp, sp, #44 @ 44 = 28+16 |
| 107 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10,r11,lr} @ Skip r0-r3 (see +16 above). |
| 108 | vldmia sp!, {d8,d9,d10,d11,d12,d13,d14,d15} |
| 109 | |
| 110 | bx lr |
| 111 | |
| 112 | |
| 113 | .globl _abi_test_clobber_r0 |
| 114 | .private_extern _abi_test_clobber_r0 |
| 115 | .align 4 |
| 116 | _abi_test_clobber_r0: |
| 117 | mov r0, #0 |
| 118 | bx lr |
| 119 | |
| 120 | |
| 121 | .globl _abi_test_clobber_r1 |
| 122 | .private_extern _abi_test_clobber_r1 |
| 123 | .align 4 |
| 124 | _abi_test_clobber_r1: |
| 125 | mov r1, #0 |
| 126 | bx lr |
| 127 | |
| 128 | |
| 129 | .globl _abi_test_clobber_r2 |
| 130 | .private_extern _abi_test_clobber_r2 |
| 131 | .align 4 |
| 132 | _abi_test_clobber_r2: |
| 133 | mov r2, #0 |
| 134 | bx lr |
| 135 | |
| 136 | |
| 137 | .globl _abi_test_clobber_r3 |
| 138 | .private_extern _abi_test_clobber_r3 |
| 139 | .align 4 |
| 140 | _abi_test_clobber_r3: |
| 141 | mov r3, #0 |
| 142 | bx lr |
| 143 | |
| 144 | |
| 145 | .globl _abi_test_clobber_r4 |
| 146 | .private_extern _abi_test_clobber_r4 |
| 147 | .align 4 |
| 148 | _abi_test_clobber_r4: |
| 149 | mov r4, #0 |
| 150 | bx lr |
| 151 | |
| 152 | |
| 153 | .globl _abi_test_clobber_r5 |
| 154 | .private_extern _abi_test_clobber_r5 |
| 155 | .align 4 |
| 156 | _abi_test_clobber_r5: |
| 157 | mov r5, #0 |
| 158 | bx lr |
| 159 | |
| 160 | |
| 161 | .globl _abi_test_clobber_r6 |
| 162 | .private_extern _abi_test_clobber_r6 |
| 163 | .align 4 |
| 164 | _abi_test_clobber_r6: |
| 165 | mov r6, #0 |
| 166 | bx lr |
| 167 | |
| 168 | |
| 169 | .globl _abi_test_clobber_r7 |
| 170 | .private_extern _abi_test_clobber_r7 |
| 171 | .align 4 |
| 172 | _abi_test_clobber_r7: |
| 173 | mov r7, #0 |
| 174 | bx lr |
| 175 | |
| 176 | |
| 177 | .globl _abi_test_clobber_r8 |
| 178 | .private_extern _abi_test_clobber_r8 |
| 179 | .align 4 |
| 180 | _abi_test_clobber_r8: |
| 181 | mov r8, #0 |
| 182 | bx lr |
| 183 | |
| 184 | |
| 185 | .globl _abi_test_clobber_r9 |
| 186 | .private_extern _abi_test_clobber_r9 |
| 187 | .align 4 |
| 188 | _abi_test_clobber_r9: |
| 189 | mov r9, #0 |
| 190 | bx lr |
| 191 | |
| 192 | |
| 193 | .globl _abi_test_clobber_r10 |
| 194 | .private_extern _abi_test_clobber_r10 |
| 195 | .align 4 |
| 196 | _abi_test_clobber_r10: |
| 197 | mov r10, #0 |
| 198 | bx lr |
| 199 | |
| 200 | |
| 201 | .globl _abi_test_clobber_r11 |
| 202 | .private_extern _abi_test_clobber_r11 |
| 203 | .align 4 |
| 204 | _abi_test_clobber_r11: |
| 205 | mov r11, #0 |
| 206 | bx lr |
| 207 | |
| 208 | |
| 209 | .globl _abi_test_clobber_r12 |
| 210 | .private_extern _abi_test_clobber_r12 |
| 211 | .align 4 |
| 212 | _abi_test_clobber_r12: |
| 213 | mov r12, #0 |
| 214 | bx lr |
| 215 | |
| 216 | |
| 217 | .globl _abi_test_clobber_d0 |
| 218 | .private_extern _abi_test_clobber_d0 |
| 219 | .align 4 |
| 220 | _abi_test_clobber_d0: |
| 221 | mov r0, #0 |
| 222 | vmov s0, r0 |
| 223 | vmov s1, r0 |
| 224 | bx lr |
| 225 | |
| 226 | |
| 227 | .globl _abi_test_clobber_d1 |
| 228 | .private_extern _abi_test_clobber_d1 |
| 229 | .align 4 |
| 230 | _abi_test_clobber_d1: |
| 231 | mov r0, #0 |
| 232 | vmov s2, r0 |
| 233 | vmov s3, r0 |
| 234 | bx lr |
| 235 | |
| 236 | |
| 237 | .globl _abi_test_clobber_d2 |
| 238 | .private_extern _abi_test_clobber_d2 |
| 239 | .align 4 |
| 240 | _abi_test_clobber_d2: |
| 241 | mov r0, #0 |
| 242 | vmov s4, r0 |
| 243 | vmov s5, r0 |
| 244 | bx lr |
| 245 | |
| 246 | |
| 247 | .globl _abi_test_clobber_d3 |
| 248 | .private_extern _abi_test_clobber_d3 |
| 249 | .align 4 |
| 250 | _abi_test_clobber_d3: |
| 251 | mov r0, #0 |
| 252 | vmov s6, r0 |
| 253 | vmov s7, r0 |
| 254 | bx lr |
| 255 | |
| 256 | |
| 257 | .globl _abi_test_clobber_d4 |
| 258 | .private_extern _abi_test_clobber_d4 |
| 259 | .align 4 |
| 260 | _abi_test_clobber_d4: |
| 261 | mov r0, #0 |
| 262 | vmov s8, r0 |
| 263 | vmov s9, r0 |
| 264 | bx lr |
| 265 | |
| 266 | |
| 267 | .globl _abi_test_clobber_d5 |
| 268 | .private_extern _abi_test_clobber_d5 |
| 269 | .align 4 |
| 270 | _abi_test_clobber_d5: |
| 271 | mov r0, #0 |
| 272 | vmov s10, r0 |
| 273 | vmov s11, r0 |
| 274 | bx lr |
| 275 | |
| 276 | |
| 277 | .globl _abi_test_clobber_d6 |
| 278 | .private_extern _abi_test_clobber_d6 |
| 279 | .align 4 |
| 280 | _abi_test_clobber_d6: |
| 281 | mov r0, #0 |
| 282 | vmov s12, r0 |
| 283 | vmov s13, r0 |
| 284 | bx lr |
| 285 | |
| 286 | |
| 287 | .globl _abi_test_clobber_d7 |
| 288 | .private_extern _abi_test_clobber_d7 |
| 289 | .align 4 |
| 290 | _abi_test_clobber_d7: |
| 291 | mov r0, #0 |
| 292 | vmov s14, r0 |
| 293 | vmov s15, r0 |
| 294 | bx lr |
| 295 | |
| 296 | |
| 297 | .globl _abi_test_clobber_d8 |
| 298 | .private_extern _abi_test_clobber_d8 |
| 299 | .align 4 |
| 300 | _abi_test_clobber_d8: |
| 301 | mov r0, #0 |
| 302 | vmov s16, r0 |
| 303 | vmov s17, r0 |
| 304 | bx lr |
| 305 | |
| 306 | |
| 307 | .globl _abi_test_clobber_d9 |
| 308 | .private_extern _abi_test_clobber_d9 |
| 309 | .align 4 |
| 310 | _abi_test_clobber_d9: |
| 311 | mov r0, #0 |
| 312 | vmov s18, r0 |
| 313 | vmov s19, r0 |
| 314 | bx lr |
| 315 | |
| 316 | |
| 317 | .globl _abi_test_clobber_d10 |
| 318 | .private_extern _abi_test_clobber_d10 |
| 319 | .align 4 |
| 320 | _abi_test_clobber_d10: |
| 321 | mov r0, #0 |
| 322 | vmov s20, r0 |
| 323 | vmov s21, r0 |
| 324 | bx lr |
| 325 | |
| 326 | |
| 327 | .globl _abi_test_clobber_d11 |
| 328 | .private_extern _abi_test_clobber_d11 |
| 329 | .align 4 |
| 330 | _abi_test_clobber_d11: |
| 331 | mov r0, #0 |
| 332 | vmov s22, r0 |
| 333 | vmov s23, r0 |
| 334 | bx lr |
| 335 | |
| 336 | |
| 337 | .globl _abi_test_clobber_d12 |
| 338 | .private_extern _abi_test_clobber_d12 |
| 339 | .align 4 |
| 340 | _abi_test_clobber_d12: |
| 341 | mov r0, #0 |
| 342 | vmov s24, r0 |
| 343 | vmov s25, r0 |
| 344 | bx lr |
| 345 | |
| 346 | |
| 347 | .globl _abi_test_clobber_d13 |
| 348 | .private_extern _abi_test_clobber_d13 |
| 349 | .align 4 |
| 350 | _abi_test_clobber_d13: |
| 351 | mov r0, #0 |
| 352 | vmov s26, r0 |
| 353 | vmov s27, r0 |
| 354 | bx lr |
| 355 | |
| 356 | |
| 357 | .globl _abi_test_clobber_d14 |
| 358 | .private_extern _abi_test_clobber_d14 |
| 359 | .align 4 |
| 360 | _abi_test_clobber_d14: |
| 361 | mov r0, #0 |
| 362 | vmov s28, r0 |
| 363 | vmov s29, r0 |
| 364 | bx lr |
| 365 | |
| 366 | |
| 367 | .globl _abi_test_clobber_d15 |
| 368 | .private_extern _abi_test_clobber_d15 |
| 369 | .align 4 |
| 370 | _abi_test_clobber_d15: |
| 371 | mov r0, #0 |
| 372 | vmov s30, r0 |
| 373 | vmov s31, r0 |
| 374 | bx lr |
| 375 | |
| 376 | #endif // !OPENSSL_NO_ASM |