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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
136 lines
3.5 KiB
ArmAsm
136 lines
3.5 KiB
ArmAsm
//===-- xray_trampoline_mips64.s --------------------------------*- ASM -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of XRay, a dynamic runtime instrumentation system.
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//
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// This implements the MIPS64-specific assembler for the trampolines.
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//
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//===----------------------------------------------------------------------===//
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.text
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.file "xray_trampoline_mips64.S"
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.globl __xray_FunctionEntry
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.p2align 2
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.type __xray_FunctionEntry,@function
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__xray_FunctionEntry:
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.cfi_startproc
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// Save argument registers before doing any actual work.
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.cfi_def_cfa_offset 144
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daddiu $sp, $sp, -144
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sd $ra, 136($sp)
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.cfi_offset 31, -8
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sd $gp, 128($sp)
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sd $a7, 120($sp)
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sd $a6, 112($sp)
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sd $a5, 104($sp)
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sd $a4, 96($sp)
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sd $a3, 88($sp)
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sd $a2, 80($sp)
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sd $a1, 72($sp)
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sd $a0, 64($sp)
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sdc1 $f19, 56($sp)
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sdc1 $f18, 48($sp)
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sdc1 $f17, 40($sp)
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sdc1 $f16, 32($sp)
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sdc1 $f15, 24($sp)
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sdc1 $f14, 16($sp)
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sdc1 $f13, 8($sp)
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sdc1 $f12, 0($sp)
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lui $gp, %hi(%neg(%gp_rel(__xray_FunctionEntry)))
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daddu $gp, $gp, $t9
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daddiu $gp ,$gp, %lo(%neg(%gp_rel(__xray_FunctionEntry)))
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dla $t9, _ZN6__xray19XRayPatchedFunctionE
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ld $t9, 0($t9)
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beqz $t9, FunctionEntry_restore
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// a1=0 means that we are tracing an entry event
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move $a1, $zero
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// Function ID is in t0 (the first parameter).
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move $a0, $t0
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jalr $t9
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FunctionEntry_restore:
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// Restore argument registers
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ldc1 $f12, 0($sp)
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ldc1 $f13, 8($sp)
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ldc1 $f14, 16($sp)
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ldc1 $f15, 24($sp)
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ldc1 $f16, 32($sp)
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ldc1 $f17, 40($sp)
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ldc1 $f18, 48($sp)
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ldc1 $f19, 56($sp)
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ld $a0, 64($sp)
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ld $a1, 72($sp)
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ld $a2, 80($sp)
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ld $a3, 88($sp)
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ld $a4, 96($sp)
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ld $a5, 104($sp)
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ld $a6, 112($sp)
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ld $a7, 120($sp)
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ld $gp, 128($sp)
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ld $ra, 136($sp)
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daddiu $sp, $sp, 144
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jr $ra
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FunctionEntry_end:
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.size __xray_FunctionEntry, FunctionEntry_end-__xray_FunctionEntry
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.cfi_endproc
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.text
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.globl __xray_FunctionExit
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.p2align 2
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.type __xray_FunctionExit,@function
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__xray_FunctionExit:
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.cfi_startproc
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// Save return registers before doing any actual work.
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.cfi_def_cfa_offset 64
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daddiu $sp, $sp, -64
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sd $ra, 56($sp)
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.cfi_offset 31, -8
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sd $gp, 48($sp)
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sd $a0, 40($sp)
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sd $v1, 32($sp)
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sd $v0, 24($sp)
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sdc1 $f2, 16($sp)
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sdc1 $f1, 8($sp)
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sdc1 $f0, 0($sp)
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lui $gp, %hi(%neg(%gp_rel(__xray_FunctionExit)))
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daddu $gp, $gp, $t9
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daddiu $gp ,$gp, %lo(%neg(%gp_rel(__xray_FunctionExit)))
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dla $t9, _ZN6__xray19XRayPatchedFunctionE
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ld $t9, 0($t9)
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beqz $t9, FunctionExit_restore
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// a1=1 means that we are tracing an exit event
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li $a1, 1
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// Function ID is in t0 (the first parameter).
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move $a0, $t0
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jalr $t9
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FunctionExit_restore:
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// Restore return registers
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ldc1 $f0, 0($sp)
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ldc1 $f1, 8($sp)
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ldc1 $f2, 16($sp)
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ld $v0, 24($sp)
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ld $v1, 32($sp)
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ld $a0, 40($sp)
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ld $gp, 48($sp)
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ld $ra, 56($sp)
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daddiu $sp, $sp, 64
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jr $ra
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FunctionExit_end:
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.size __xray_FunctionExit, FunctionExit_end-__xray_FunctionExit
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.cfi_endproc
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