| //===-- 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 |