Chromium Code Reviews Chromium Code Reviews
Issue 476143002:
Implement the Oilpan pushAllRegisters on MIPS64 (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master| OLD | NEW |
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| (Empty) | |
| 1 /* | |
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haraken
2014/08/15 14:43:21
Use the following 3-line copyright.
// Copyright
petarj
2014/08/15 14:59:54
Done.
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| 2 * Copyright (C) 2014 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 | |
| 32 /* | |
| 33 * typedef void (*PushAllRegistersCallback)(SafePointBarrier*, ThreadState*, int ptr_t*); | |
| 34 * extern "C" void pushAllRegisters(SafePointBarrier*, ThreadState*, PushAllRegi stersCallback) | |
| 35 */ | |
| 36 | |
| 37 .type pushAllRegisters, %function | |
| 38 .global pushAllRegisters | |
| 39 .hidden pushAllRegisters | |
| 40 pushAllRegisters: | |
| 41 // Push all callee-saves registers to get them | |
| 42 // on the stack for conservative stack scanning. | |
| 43 // Reserve space for callee-saved registers and return address. | |
| 44 daddiu $sp,$sp,-80 | |
| 45 // Save the callee-saved registers and the return address. | |
| 46 sd $s0,0($sp) | |
| 47 sd $s1,8($sp) | |
| 48 sd $s2,16($sp) | |
| 49 sd $s3,24($sp) | |
| 50 sd $s4,32($sp) | |
| 51 sd $s5,40($sp) | |
| 52 sd $s6,48($sp) | |
| 53 sd $s7,56($sp) | |
| 54 sd $ra,64($sp) | |
| 55 // Note: the callee-saved floating point registers do not need to be | |
| 56 // copied to the stack, because fp registers never hold heap pointers | |
| 57 // and so do not need to be kept visible to the garbage collector. | |
| 58 // Pass the two first arguments untouched in a0 and a1 and the | |
| 59 // stack pointer to the callback. | |
| 60 move $t9,$a2 | |
| 61 move $a2,$sp | |
| 62 jal $t9 | |
| 63 // Restore return address, adjust stack and return. | |
| 64 // Note: the copied registers do not need to be reloaded here, | |
| 65 // because they were preserved by the called routine. | |
| 66 ld $ra,64($sp) | |
| 67 daddiu $sp,$sp,80 | |
| 68 jr $ra | |
| OLD | NEW |
