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https://github.com/jart/cosmopolitan.git
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1ff9ab95ac
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.
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_RUNTIME_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_RUNTIME_INTERNAL_H_
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#ifndef __STRICT_ANSI__
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#include "libc/dce.h"
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#include "libc/elf/struct/ehdr.h"
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#include "libc/runtime/ezmap.internal.h"
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#include "libc/runtime/runtime.h"
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#define STACK_CEIL 0x700000000000ul
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#define STACK_SIZE FRAMESIZE
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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extern hidden bool _mmap_asan_mode;
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extern hidden char **g_freebsdhint;
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extern hidden void *g_stacktop;
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void _init(void) hidden;
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void _piro(int) hidden;
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void *__cxa_finalize(void *) hidden;
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void cosmo(int, char **, char **, long (*)[2]) hidden wontreturn;
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void __stack_chk_fail(void) wontreturn relegated;
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void __stack_chk_fail_local(void) wontreturn relegated hidden;
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void _jmpstack(void *, void *, ...) hidden wontreturn;
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long _setstack(void *, void *, ...) hidden;
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int GetDosArgv(const char16_t *, char *, size_t, char **, size_t) hidden;
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Elf64_Ehdr *MapElfRead(const char *, struct MappedFile *) hidden;
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int GetDosEnviron(const char16_t *, char *, size_t, char **, size_t) hidden;
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* ANSI */
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#endif /* COSMOPOLITAN_LIBC_RUNTIME_INTERNAL_H_ */
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