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author | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2018-05-15 10:20:33 +0200 |
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committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2018-05-15 10:28:57 +0000 |
commit | d17ea114e5ef69ad5d5d7413280a13e6428098aa (patch) | |
tree | 2c01a75df69f30d27b1432467cfe7c1467a498da /chromium/third_party/blink/renderer/platform/heap/asm/SaveRegisters_mips64.S | |
parent | 8c5c43c7b138c9b4b0bf56d946e61d3bbc111bec (diff) | |
download | qtwebengine-chromium-d17ea114e5ef69ad5d5d7413280a13e6428098aa.tar.gz |
BASELINE: Update Chromium to 67.0.3396.47
Change-Id: Idcb1341782e417561a2473eeecc82642dafda5b7
Reviewed-by: Michal Klocek <michal.klocek@qt.io>
Diffstat (limited to 'chromium/third_party/blink/renderer/platform/heap/asm/SaveRegisters_mips64.S')
-rw-r--r-- | chromium/third_party/blink/renderer/platform/heap/asm/SaveRegisters_mips64.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/platform/heap/asm/SaveRegisters_mips64.S b/chromium/third_party/blink/renderer/platform/heap/asm/SaveRegisters_mips64.S new file mode 100644 index 00000000000..71d04553403 --- /dev/null +++ b/chromium/third_party/blink/renderer/platform/heap/asm/SaveRegisters_mips64.S @@ -0,0 +1,41 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +/* + * typedef void (*PushAllRegistersCallback)(SafePointBarrier*, ThreadState*, intptr_t*); + * extern "C" void PushAllRegisters(SafePointBarrier*, ThreadState*, PushAllRegistersCallback) + */ + +.type PushAllRegisters, %function +.global PushAllRegisters +.hidden PushAllRegisters +PushAllRegisters: + // Push all callee-saves registers to get them + // on the stack for conservative stack scanning. + // Reserve space for callee-saved registers and return address. + daddiu $sp,$sp,-80 + // Save the callee-saved registers and the return address. + sd $s0,0($sp) + sd $s1,8($sp) + sd $s2,16($sp) + sd $s3,24($sp) + sd $s4,32($sp) + sd $s5,40($sp) + sd $s6,48($sp) + sd $s7,56($sp) + sd $ra,64($sp) + // Note: the callee-saved floating point registers do not need to be + // copied to the stack, because fp registers never hold heap pointers + // and so do not need to be kept visible to the garbage collector. + // Pass the two first arguments untouched in a0 and a1 and the + // stack pointer to the callback. + move $t9,$a2 + move $a2,$sp + jalr $t9 + // Restore return address, adjust stack and return. + // Note: the copied registers do not need to be reloaded here, + // because they were preserved by the called routine. + ld $ra,64($sp) + daddiu $sp,$sp,80 + jr $ra |