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cosmopolitan/libc/intrin/asan.internal.h

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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.
2021-02-01 11:33:13 +00:00
#ifndef COSMOPOLITAN_LIBC_INTRIN_ASAN_H_
#define COSMOPOLITAN_LIBC_INTRIN_ASAN_H_
Make redbean StoreAsset() work better - Better UBSAN error messages - POSIX Advisory Locks polyfills - Move redbean manual to /.help.txt - System call memory safety in ASAN mode - Character classification now does UNICODE
2021-05-14 12:36:58 +00:00
#include "libc/calls/struct/iovec.h"
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.
2021-02-01 11:33:13 +00:00
#define kAsanScale 3
#define kAsanMagic 0x7fff8000
#define kAsanHeapFree -1
#define kAsanStackFree -2
#define kAsanRelocated -3
#define kAsanHeapUnderrun -4
#define kAsanHeapOverrun -5
#define kAsanGlobalOverrun -6
#define kAsanGlobalUnregistered -7
#define kAsanStackUnderrun -8
#define kAsanStackOverrun -9
#define kAsanAllocaUnderrun -10
#define kAsanAllocaOverrun -11
#define kAsanUnscoped -12
#define kAsanUnmapped -13
Make redbean StoreAsset() work better - Better UBSAN error messages - POSIX Advisory Locks polyfills - Move redbean manual to /.help.txt - System call memory safety in ASAN mode - Character classification now does UNICODE
2021-05-14 12:36:58 +00:00
#define SHADOW(x) ((signed char *)(((uintptr_t)(x) >> kAsanScale) + kAsanMagic))
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.
2021-02-01 11:33:13 +00:00
void __asan_map_shadow(uintptr_t, size_t);
void __asan_poison(uintptr_t, size_t, int);
void __asan_unpoison(uintptr_t, size_t);
Make redbean StoreAsset() work better - Better UBSAN error messages - POSIX Advisory Locks polyfills - Move redbean manual to /.help.txt - System call memory safety in ASAN mode - Character classification now does UNICODE
2021-05-14 12:36:58 +00:00
bool __asan_is_valid(const void *, size_t);
bool __asan_is_valid_iov(const struct iovec *, int);
Import some Lua documentation I personally find it easier to read the documentation in Emacs using JavaDoc style comments.
2021-08-22 22:02:18 +00:00
bool __asan_is_valid_strlist(char *const *);
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.
2021-02-01 11:33:13 +00:00
#endif /* COSMOPOLITAN_LIBC_INTRIN_ASAN_H_ */
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