mirror of
https://github.com/jart/cosmopolitan.git
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109 lines
3.4 KiB
ArmAsm
109 lines
3.4 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.internal.h"
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.privileged
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ftrace_hook:
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#ifdef __x86_64__
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cmp $0,__ftrace(%rip)
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jg 1f
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ret
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1: push %rbp
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mov %rsp,%rbp
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and $-16,%rsp
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sub $0x80,%rsp
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movaps %xmm0,0x00(%rsp)
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movaps %xmm1,0x10(%rsp)
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movaps %xmm2,0x20(%rsp)
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movaps %xmm3,0x30(%rsp)
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movaps %xmm4,0x40(%rsp)
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movaps %xmm5,0x50(%rsp)
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movaps %xmm6,0x60(%rsp)
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movaps %xmm7,0x70(%rsp)
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push %rax
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push %rax
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push %rdi
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push %rsi
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push %rdx
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push %rcx
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push %r8
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push %r9
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push %r10
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push %r11
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call ftracer
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pop %r11
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pop %r10
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pop %r9
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pop %r8
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pop %rcx
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pop %rdx
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pop %rsi
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pop %rdi
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pop %rax
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pop %rax
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movaps 0x00(%rsp),%xmm0
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movaps 0x10(%rsp),%xmm1
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movaps 0x20(%rsp),%xmm2
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movaps 0x30(%rsp),%xmm3
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movaps 0x40(%rsp),%xmm4
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movaps 0x50(%rsp),%xmm5
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movaps 0x60(%rsp),%xmm6
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movaps 0x70(%rsp),%xmm7
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leave
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#elif defined(__aarch64__)
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stp x0,x1,[sp,#-16]!
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stp x2,x3,[sp,#-16]!
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stp x4,x5,[sp,#-16]!
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stp x6,x7,[sp,#-16]!
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stp x8,x9,[sp,#-16]!
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stp x10,x11,[sp,#-16]!
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stp x12,x13,[sp,#-16]!
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stp x14,x15,[sp,#-16]!
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stp x16,x17,[sp,#-16]!
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stp x18,x19,[sp,#-16]!
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stp x20,x21,[sp,#-16]!
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stp x22,x23,[sp,#-16]!
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stp x24,x25,[sp,#-16]!
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stp x26,x27,[sp,#-16]!
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stp x28,x29,[sp,#-16]!
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str x30,[sp,#-16]!
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bl ftracer
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ldr x30,[sp,#16]!
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ldp x28,x29,[sp,#16]!
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ldp x26,x27,[sp,#16]!
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ldp x24,x25,[sp,#16]!
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ldp x22,x23,[sp,#16]!
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ldp x20,x21,[sp,#16]!
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ldp x18,x19,[sp,#16]!
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ldp x16,x17,[sp,#16]!
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ldp x14,x15,[sp,#16]!
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ldp x12,x13,[sp,#16]!
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ldp x10,x11,[sp,#16]!
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ldp x8,x9,[sp,#16]!
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ldp x6,x7,[sp,#16]!
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ldp x4,x5,[sp,#16]!
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ldp x2,x3,[sp,#16]!
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ldp x0,x1,[sp,#16]!
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#endif /* __x86_64__ */
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ret
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.endfn ftrace_hook,globl
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