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cosmopolitan/libc/intrin/somanyasan.S

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Polish up repository and other revisions
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
Initial import
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
Change license
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│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
Initial import
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│ │
Change license
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
Initial import
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╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
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.source __FILE__
Initial import
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/ @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.
Initial import
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__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
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/ 𝑠𝑙𝑖𝑑𝑒
Initial import
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.endfn __asan_report_load16,globl
OnReportLoad:
pop %rsi
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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/ 𝑠𝑙𝑖𝑑𝑒
Initial import
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.endfn OnReportLoad
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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__asan_report_load_n:
lea __asan_report_load_impl(%rip),%r11
jmp __asan_report_noreentry
.endfn __asan_report_load_n,globl
Initial import
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__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
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/ 𝑠𝑙𝑖𝑑𝑒
Initial import
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.endfn __asan_report_store32,globl
ReportStore:
pop %rsi
Get address sanitizer mostly working
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/ 𝑠𝑙𝑖𝑑𝑒
Initial import
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.endfn ReportStore
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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__asan_report_store_n:
lea __asan_report_store_impl(%rip),%r11
/ 𝑠𝑙𝑖𝑑𝑒
.endfn __asan_report_store_n,globl
Initial import
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__asan_report_noreentry:
push %rbp
mov %rsp,%rbp
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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xor %eax,%eax
mov $1,%r10b
cmpxchg %r10b,__asan_noreentry(%rip)
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jnz 2f
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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call *%r11
decb __asan_noreentry(%rip)
2: pop %rbp
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ret
.endfn __asan_report_noreentry
Initial import
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__asan_stack_free_0:
push $0
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jmp OnStackFree
Initial import
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.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
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/ 𝑠𝑙𝑖𝑑𝑒
Initial import
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.endfn __asan_stack_free_10,globl
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OnStackFree:
pop %rdx
jmp __asan_stack_free
.endfn OnStackFree
Initial import
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__asan_stack_malloc_0:
push $0
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jmp OnStackMalloc
Initial import
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.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
Get address sanitizer mostly working
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/ 𝑠𝑙𝑖𝑑𝑒
Initial import
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.endfn __asan_stack_malloc_10,globl
Get address sanitizer mostly working
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OnStackMalloc:
pop %rsi
jmp __asan_stack_malloc
.endfn OnStackMalloc
__asan_handle_no_return:
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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push %rbp
mov %rsp,%rbp
lea 8(%rsp),%rdi
call __asan_handle_no_return_impl
pop %rbp
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ret
.endfn __asan_handle_no_return,globl
__asan_before_dynamic_init:
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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push %rbp
mov %rsp,%rbp
ud2
pop %rbp
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ret
.endfn __asan_before_dynamic_init,globl
__asan_after_dynamic_init:
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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push %rbp
mov %rsp,%rbp
ud2
pop %rbp
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ret
.endfn __asan_after_dynamic_init,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
Initial import
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.rodata.cst4
__asan_option_detect_stack_use_after_return:
Make improvements - Emulator can now test the αcτµαlly pδrταblε εxεcµταblε bootloader - Whipped up a webserver named redbean. It services 150k requests per second on a single core. Bundling assets inside zip enables extremely fast serving for two reasons. The first is that zip central directory lookups go faster than stat() system calls. The second is that both zip and gzip content-encoding use DEFLATE, therefore, compressed responses can be served via the sendfile() system call which does an in-kernel copy directly from the zip executable structure. Also note that red bean zip executables can be deployed easily to all platforms, since these native executables work on Linux, Mac, BSD, and Windows. - Address sanitizer now works very well
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.long 0
Initial import
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.endobj __asan_option_detect_stack_use_after_return,globl
.previous
Get address sanitizer mostly working
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.bss
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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__asan_noreentry:
Get address sanitizer mostly working
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.byte 0
Make C memory safe like Rust This change enables Address Sanitizer systemically w/ `make MODE=dbg`. Our version of Rust's `unsafe` keyword is named `noasan` which is used for two functions that do aligned memory chunking, like `strcpy.c` and we need to fix the tiny DEFLATE code, but that's it everything else is fabulous you can have all the fischer price security blankets you need Best of all is we're now able to use the ASAN data in Blinkenlights to colorize the memory dumps. See the screenshot below of a test program: https://justine.lol/blinkenlights/asan.png Which is operating on float arrays stored on the stack, with red areas indicating poisoned memory, and the green areas indicate valid memory.
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.endobj __asan_noreentry
Get address sanitizer mostly working
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.previous
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