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Get address sanitizer mostly working

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Justine Tunney
2020-09-03 05:44:37 -07:00
parent 1f1f3cd477
commit 7327c345f9
149 changed files with 3777 additions and 3457 deletions
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libc/log/somanyasan.S Normal file
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
.privileged
.source __FILE__
/ @fileoverview Address Sanitizer Thunks
/
/ This has tiny code size and reduces API surface area
/ since ASAN has the same stylistic hugeness as UBSAN.
/ We also guard all the functions, against reentrancy.
__asan_load1:
push $1
jmp OnLoad
.endfn __asan_load1,globl
__asan_load2:
push $2
jmp OnLoad
.endfn __asan_load2,globl
__asan_load4:
push $4
jmp OnLoad
.endfn __asan_load4,globl
__asan_load8:
push $8
jmp OnLoad
.endfn __asan_load8,globl
__asan_load16:
push $16
jmp OnLoad
.endfn __asan_load16,globl
__asan_load32:
push $32
/ 𝑠𝑙𝑖𝑑𝑒
.endfn __asan_load32,globl
OnLoad: pop %rsi
ezlea __asan_loadN,ax
jmp __asan_report_noreentry
.endfn OnStore
__asan_store1:
push $1
jmp OnStore
.endfn __asan_store1,globl
__asan_store2:
push $2
jmp OnStore
.endfn __asan_store2,globl
__asan_store4:
push $4
jmp OnStore
.endfn __asan_store4,globl
__asan_store8:
push $8
jmp OnStore
.endfn __asan_store8,globl
__asan_store16:
push $16
jmp OnStore
.endfn __asan_store16,globl
__asan_store32:
push $32
/ 𝑠𝑙𝑖𝑑𝑒
.endfn __asan_store32,globl
OnStore:pop %rsi
ezlea __asan_storeN,ax
jmp __asan_report_noreentry
.endfn OnStore
__asan_report_load1:
push $1
jmp OnReportLoad
.endfn __asan_report_load1,globl
__asan_report_load2:
push $2
jmp OnReportLoad
.endfn __asan_report_load2,globl
__asan_report_load4:
push $4
jmp OnReportLoad
.endfn __asan_report_load4,globl
__asan_report_load8:
push $8
jmp OnReportLoad
.endfn __asan_report_load8,globl
__asan_report_load16:
push $16
/ 𝑠𝑙𝑖𝑑𝑒
.endfn __asan_report_load16,globl
OnReportLoad:
pop %rsi
ezlea __asan_report_load_n,ax
jmp __asan_report_noreentry
.endfn OnReportLoad
__asan_report_store1:
push $1
jmp ReportStore
.endfn __asan_report_store1,globl
__asan_report_store2:
push $2
jmp ReportStore
.endfn __asan_report_store2,globl
__asan_report_store4:
push $4
jmp ReportStore
.endfn __asan_report_store4,globl
__asan_report_store8:
push $8
jmp ReportStore
.endfn __asan_report_store8,globl
__asan_report_store16:
push $16
jmp ReportStore
.endfn __asan_report_store16,globl
__asan_report_store32:
push $32
/ 𝑠𝑙𝑖𝑑𝑒
.endfn __asan_report_store32,globl
ReportStore:
pop %rsi
ezlea __asan_report_store_n,ax
/ 𝑠𝑙𝑖𝑑𝑒
.endfn ReportStore
__asan_report_noreentry:
push %rbp
mov %rsp,%rbp
cmpb $0,noreentry(%rip)
jnz 2f
incb noreentry(%rip)
call *%rax
decb noreentry(%rip)
pop %rbp
ret
2: call abort
.endfn __asan_report_noreentry
__asan_stack_free_0:
push $0
jmp OnStackFree
.endfn __asan_stack_free_0,globl
__asan_stack_free_1:
push $1
jmp OnStackFree
.endfn __asan_stack_free_1,globl
__asan_stack_free_2:
push $2
jmp OnStackFree
.endfn __asan_stack_free_2,globl
__asan_stack_free_3:
push $3
jmp OnStackFree
.endfn __asan_stack_free_3,globl
__asan_stack_free_4:
push $4
jmp OnStackFree
.endfn __asan_stack_free_4,globl
__asan_stack_free_5:
push $5
jmp OnStackFree
.endfn __asan_stack_free_5,globl
__asan_stack_free_6:
push $6
jmp OnStackFree
.endfn __asan_stack_free_6,globl
__asan_stack_free_7:
push $7
jmp OnStackFree
.endfn __asan_stack_free_7,globl
__asan_stack_free_8:
push $8
jmp OnStackFree
.endfn __asan_stack_free_8,globl
__asan_stack_free_9:
push $9
jmp OnStackFree
.endfn __asan_stack_free_9,globl
__asan_stack_free_10:
push $10
/ 𝑠𝑙𝑖𝑑𝑒
.endfn __asan_stack_free_10,globl
OnStackFree:
pop %rdx
jmp __asan_stack_free
.endfn OnStackFree
__asan_stack_malloc_0:
push $0
jmp OnStackMalloc
.endfn __asan_stack_malloc_0,globl
__asan_stack_malloc_1:
push $1
jmp OnStackMalloc
.endfn __asan_stack_malloc_1,globl
__asan_stack_malloc_2:
push $2
jmp OnStackMalloc
.endfn __asan_stack_malloc_2,globl
__asan_stack_malloc_3:
push $3
jmp OnStackMalloc
.endfn __asan_stack_malloc_3,globl
__asan_stack_malloc_4:
push $4
jmp OnStackMalloc
.endfn __asan_stack_malloc_4,globl
__asan_stack_malloc_5:
push $5
jmp OnStackMalloc
.endfn __asan_stack_malloc_5,globl
__asan_stack_malloc_6:
push $6
jmp OnStackMalloc
.endfn __asan_stack_malloc_6,globl
__asan_stack_malloc_7:
push $7
jmp OnStackMalloc
.endfn __asan_stack_malloc_7,globl
__asan_stack_malloc_8:
push $8
jmp OnStackMalloc
.endfn __asan_stack_malloc_8,globl
__asan_stack_malloc_9:
push $9
jmp OnStackMalloc
.endfn __asan_stack_malloc_9,globl
__asan_stack_malloc_10:
push $10
/ 𝑠𝑙𝑖𝑑𝑒
.endfn __asan_stack_malloc_10,globl
OnStackMalloc:
pop %rsi
jmp __asan_stack_malloc
.endfn OnStackMalloc
__asan_handle_no_return:
ret
.endfn __asan_handle_no_return,globl
__asan_before_dynamic_init:
ret
.endfn __asan_before_dynamic_init,globl
__asan_after_dynamic_init:
ret
.endfn __asan_after_dynamic_init,globl
__asan_unregister_globals:
ret
.endfn __asan_unregister_globals,globl
__asan_version_mismatch_check_v8:
ret
.endfn __asan_version_mismatch_check_v8,globl
/ Initializes Address Sanitizer runtime earlier if linked.
.init.start 301,_init_asan
push %rdi
push %rsi
mov %r12,%rdi
mov %r13,%rsi
mov %r14,%rdx
mov %r15,%rcx
call __asan_init
pop %rsi
pop %rdi
.init.end 301,_init_asan
.rodata.cst4
__asan_option_detect_stack_use_after_return:
.long 1
.endobj __asan_option_detect_stack_use_after_return,globl
.previous
.bss
noreentry:
.byte 0
.endobj noreentry
.previous