236 lines
6.0 KiB
ArmAsm
236 lines
6.0 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 2020 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.h"
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.privileged
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.source __FILE__
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/ @fileoverview Address Sanitizer Thunks
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/
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/ This has tiny code size and reduces API surface area
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/ since ASAN has the same stylistic hugeness as UBSAN.
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/ We also guard all the functions, against reentrancy.
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__asan_report_load1:
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push $1
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jmp OnReportLoad
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.endfn __asan_report_load1,globl
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__asan_report_load2:
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push $2
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jmp OnReportLoad
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.endfn __asan_report_load2,globl
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__asan_report_load4:
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push $4
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jmp OnReportLoad
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.endfn __asan_report_load4,globl
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__asan_report_load8:
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push $8
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jmp OnReportLoad
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.endfn __asan_report_load8,globl
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__asan_report_load16:
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push $16
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn __asan_report_load16,globl
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OnReportLoad:
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pop %rsi
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ezlea __asan_report_load_n,ax
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jmp __asan_report_noreentry
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.endfn OnReportLoad
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__asan_report_store1:
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push $1
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jmp ReportStore
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.endfn __asan_report_store1,globl
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__asan_report_store2:
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push $2
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jmp ReportStore
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.endfn __asan_report_store2,globl
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__asan_report_store4:
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push $4
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jmp ReportStore
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.endfn __asan_report_store4,globl
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__asan_report_store8:
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push $8
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jmp ReportStore
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.endfn __asan_report_store8,globl
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__asan_report_store16:
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push $16
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jmp ReportStore
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.endfn __asan_report_store16,globl
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__asan_report_store32:
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push $32
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn __asan_report_store32,globl
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ReportStore:
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pop %rsi
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ezlea __asan_report_store_n,ax
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn ReportStore
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__asan_report_noreentry:
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push %rbp
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mov %rsp,%rbp
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cmpb $0,noreentry(%rip)
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jnz 2f
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incb noreentry(%rip)
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call *%rax
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decb noreentry(%rip)
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pop %rbp
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ret
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2: call abort
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.endfn __asan_report_noreentry
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__asan_stack_free_0:
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push $0
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jmp OnStackFree
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.endfn __asan_stack_free_0,globl
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__asan_stack_free_1:
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push $1
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jmp OnStackFree
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.endfn __asan_stack_free_1,globl
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__asan_stack_free_2:
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push $2
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jmp OnStackFree
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.endfn __asan_stack_free_2,globl
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__asan_stack_free_3:
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push $3
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jmp OnStackFree
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.endfn __asan_stack_free_3,globl
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__asan_stack_free_4:
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push $4
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jmp OnStackFree
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.endfn __asan_stack_free_4,globl
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__asan_stack_free_5:
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push $5
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jmp OnStackFree
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.endfn __asan_stack_free_5,globl
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__asan_stack_free_6:
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push $6
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jmp OnStackFree
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.endfn __asan_stack_free_6,globl
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__asan_stack_free_7:
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push $7
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jmp OnStackFree
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.endfn __asan_stack_free_7,globl
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__asan_stack_free_8:
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push $8
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jmp OnStackFree
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.endfn __asan_stack_free_8,globl
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__asan_stack_free_9:
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push $9
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jmp OnStackFree
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.endfn __asan_stack_free_9,globl
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__asan_stack_free_10:
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push $10
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn __asan_stack_free_10,globl
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OnStackFree:
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pop %rdx
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jmp __asan_stack_free
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.endfn OnStackFree
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__asan_stack_malloc_0:
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push $0
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_0,globl
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__asan_stack_malloc_1:
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push $1
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_1,globl
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__asan_stack_malloc_2:
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push $2
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_2,globl
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__asan_stack_malloc_3:
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push $3
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_3,globl
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__asan_stack_malloc_4:
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push $4
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_4,globl
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__asan_stack_malloc_5:
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push $5
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_5,globl
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__asan_stack_malloc_6:
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push $6
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_6,globl
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__asan_stack_malloc_7:
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push $7
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_7,globl
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__asan_stack_malloc_8:
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push $8
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_8,globl
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__asan_stack_malloc_9:
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push $9
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jmp OnStackMalloc
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.endfn __asan_stack_malloc_9,globl
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__asan_stack_malloc_10:
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push $10
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn __asan_stack_malloc_10,globl
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OnStackMalloc:
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pop %rsi
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jmp __asan_stack_malloc
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.endfn OnStackMalloc
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__asan_handle_no_return:
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ret
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.endfn __asan_handle_no_return,globl
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__asan_before_dynamic_init:
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ret
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.endfn __asan_before_dynamic_init,globl
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__asan_after_dynamic_init:
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ret
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.endfn __asan_after_dynamic_init,globl
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__asan_version_mismatch_check_v8:
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ret
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.endfn __asan_version_mismatch_check_v8,globl
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/ Initializes Address Sanitizer runtime earlier if linked.
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.init.start 301,_init_asan
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push %rdi
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push %rsi
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mov %r12,%rdi
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mov %r13,%rsi
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mov %r14,%rdx
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mov %r15,%rcx
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call __asan_init
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pop %rsi
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pop %rdi
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.init.end 301,_init_asan
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.rodata.cst4
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__asan_option_detect_stack_use_after_return:
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.long 0
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.endobj __asan_option_detect_stack_use_after_return,globl
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.previous
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.bss
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noreentry:
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.byte 0
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.endobj noreentry
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.previous
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