diff options
Diffstat (limited to 'contrib/compiler-rt/lib/xray/xray_trampoline_mips64.S')
-rw-r--r-- | contrib/compiler-rt/lib/xray/xray_trampoline_mips64.S | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/contrib/compiler-rt/lib/xray/xray_trampoline_mips64.S b/contrib/compiler-rt/lib/xray/xray_trampoline_mips64.S new file mode 100644 index 000000000000..9cbc7e181d9d --- /dev/null +++ b/contrib/compiler-rt/lib/xray/xray_trampoline_mips64.S @@ -0,0 +1,136 @@ +//===-- xray_trampoline_mips64.s --------------------------------*- ASM -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file is a part of XRay, a dynamic runtime instrumentation system. +// +// This implements the MIPS64-specific assembler for the trampolines. +// +//===----------------------------------------------------------------------===// + + .text + .file "xray_trampoline_mips64.S" + .globl __xray_FunctionEntry + .p2align 2 + .type __xray_FunctionEntry,@function +__xray_FunctionEntry: + .cfi_startproc + // Save argument registers before doing any actual work. + .cfi_def_cfa_offset 144 + daddiu $sp, $sp, -144 + sd $ra, 136($sp) + .cfi_offset 31, -8 + sd $gp, 128($sp) + sd $a7, 120($sp) + sd $a6, 112($sp) + sd $a5, 104($sp) + sd $a4, 96($sp) + sd $a3, 88($sp) + sd $a2, 80($sp) + sd $a1, 72($sp) + sd $a0, 64($sp) + sdc1 $f19, 56($sp) + sdc1 $f18, 48($sp) + sdc1 $f17, 40($sp) + sdc1 $f16, 32($sp) + sdc1 $f15, 24($sp) + sdc1 $f14, 16($sp) + sdc1 $f13, 8($sp) + sdc1 $f12, 0($sp) + + lui $gp, %hi(%neg(%gp_rel(__xray_FunctionEntry))) + daddu $gp, $gp, $t9 + daddiu $gp ,$gp, %lo(%neg(%gp_rel(__xray_FunctionEntry))) + + dla $t9, _ZN6__xray19XRayPatchedFunctionE + ld $t9, 0($t9) + + beqz $t9, FunctionEntry_restore + + // a1=0 means that we are tracing an entry event + move $a1, $zero + // Function ID is in t0 (the first parameter). + move $a0, $t0 + jalr $t9 + +FunctionEntry_restore: + // Restore argument registers + ldc1 $f12, 0($sp) + ldc1 $f13, 8($sp) + ldc1 $f14, 16($sp) + ldc1 $f15, 24($sp) + ldc1 $f16, 32($sp) + ldc1 $f17, 40($sp) + ldc1 $f18, 48($sp) + ldc1 $f19, 56($sp) + ld $a0, 64($sp) + ld $a1, 72($sp) + ld $a2, 80($sp) + ld $a3, 88($sp) + ld $a4, 96($sp) + ld $a5, 104($sp) + ld $a6, 112($sp) + ld $a7, 120($sp) + ld $gp, 128($sp) + ld $ra, 136($sp) + daddiu $sp, $sp, 144 + jr $ra +FunctionEntry_end: + .size __xray_FunctionEntry, FunctionEntry_end-__xray_FunctionEntry + .cfi_endproc + + .text + .globl __xray_FunctionExit + .p2align 2 + .type __xray_FunctionExit,@function +__xray_FunctionExit: + .cfi_startproc + // Save return registers before doing any actual work. + .cfi_def_cfa_offset 64 + daddiu $sp, $sp, -64 + sd $ra, 56($sp) + .cfi_offset 31, -8 + sd $gp, 48($sp) + sd $a0, 40($sp) + sd $v1, 32($sp) + sd $v0, 24($sp) + sdc1 $f2, 16($sp) + sdc1 $f1, 8($sp) + sdc1 $f0, 0($sp) + + lui $gp, %hi(%neg(%gp_rel(__xray_FunctionExit))) + daddu $gp, $gp, $t9 + daddiu $gp ,$gp, %lo(%neg(%gp_rel(__xray_FunctionExit))) + + dla $t9, _ZN6__xray19XRayPatchedFunctionE + ld $t9, 0($t9) + + beqz $t9, FunctionExit_restore + + // a1=1 means that we are tracing an exit event + li $a1, 1 + // Function ID is in t0 (the first parameter). + move $a0, $t0 + jalr $t9 + +FunctionExit_restore: + // Restore return registers + ldc1 $f0, 0($sp) + ldc1 $f1, 8($sp) + ldc1 $f2, 16($sp) + ld $v0, 24($sp) + ld $v1, 32($sp) + ld $a0, 40($sp) + ld $gp, 48($sp) + ld $ra, 56($sp) + daddiu $sp, $sp, 64 + jr $ra + +FunctionExit_end: + .size __xray_FunctionExit, FunctionExit_end-__xray_FunctionExit + .cfi_endproc |