mirror of
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.
104 lines
7.6 KiB
C
104 lines
7.6 KiB
C
#ifndef COSMOPOLITAN_LIBC_X_H_
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#define COSMOPOLITAN_LIBC_X_H_
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#include "libc/calls/struct/sigaction.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/fmt/pflink.h"
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#include "libc/stdio/stdio.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│─╝
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Standard Library veneers for folks not building embedded RTOS */
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#define _XPNN paramsnonnull()
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#define _XRET nothrow nocallback nodiscard returnsnonnull
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#define _XMAL returnspointerwithnoaliases _XRET
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#define _XMALPG returnsaligned((PAGESIZE)) _XMAL
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » system calls ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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int xsigaction(int, void *, uint64_t, uint64_t, struct sigaction *);
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int xwrite(int, const void *, uint64_t);
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » memory ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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void xdie(void) wontreturn;
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char *xdtoa(long double) _XMAL;
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char *xasprintf(const char *, ...) printfesque(1) paramsnonnull((1)) _XMAL;
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char *xvasprintf(const char *, va_list) _XPNN _XMAL;
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char *xgetline(struct FILE *) _XPNN mallocesque;
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void *xmalloc(size_t) attributeallocsize((1)) _XMAL;
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void *xrealloc(void *, size_t) attributeallocsize((2)) _XRET;
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void *xcalloc(size_t, size_t) attributeallocsize((1, 2)) _XMAL;
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void *xvalloc(size_t) attributeallocsize((1)) _XMALPG;
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void *xmemalign(size_t, size_t) attributeallocalign((1))
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attributeallocsize((2)) _XMAL;
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void *xmemalignzero(size_t, size_t) attributeallocalign((1))
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attributeallocsize((2)) _XMAL;
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char *xstrdup(const char *) _XPNN _XMAL;
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char *xstrndup(const char *, size_t) _XPNN _XMAL;
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char *xstrcat(const char *, ...) paramsnonnull((1)) nullterminated() _XMAL;
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char *xstrmul(const char *, size_t) paramsnonnull((1)) _XMAL;
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char *xinet_ntop(int, const void *) _XPNN _XMAL;
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void *xunbinga(size_t, const char16_t *) attributeallocalign((1)) _XMAL _XRET;
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void *xunbing(const char16_t *) _XMAL _XRET;
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » files ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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int rmrf(const char *);
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int makedirs(const char *, unsigned);
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char *xdirname(const char *) paramsnonnull() _XMAL;
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char *xjoinpaths(const char *, const char *) paramsnonnull() _XMAL;
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » time ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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char *xiso8601i(int) mallocesque;
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char *xiso8601tv(struct timeval *) mallocesque;
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char *xiso8601ts(struct timespec *) mallocesque;
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » input / output ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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char *xslurp(const char *, size_t *) paramsnonnull((1)) _XMALPG nodiscard;
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int xbarf(const char *, const void *, size_t);
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » safety ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#define xstrcat(...) (xstrcat)(__VA_ARGS__, NULL)
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » generic typing ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#if __STDC_VERSION__ + 0 >= 201112
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#define xiso8601(TS) \
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_Generic(*(TS), struct timeval : xiso8601tv, default : xiso8601ts)(TS)
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#endif /* C11 */
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § eXtended apis » link-time optimizations ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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#define xasprintf(FMT, ...) (xasprintf)(PFLINK(FMT), ##__VA_ARGS__)
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#define xvasprintf(FMT, VA) (xvasprintf)(PFLINK(FMT), VA)
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_X_H_ */
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