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https://github.com/jart/cosmopolitan.git
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ccbae7799e
This change also found a few POSIX compliance bugs with errnos. Another bug was discovered where, on Windows, pread() and pwrite() could modify the file position in cases where ReadFile() returned an error e.g. when seeking past the end of file. We also have more tests!
24 lines
748 B
C
24 lines
748 B
C
#ifndef COSMOPOLITAN_LIBC_CALLS_ASAN_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_CALLS_ASAN_INTERNAL_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/intrin/asmflag.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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forceinline bool __asan_is_valid_timespec(const struct timespec *ts) {
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bool zf;
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asm(ZFLAG_ASM("cmpw\t$0,0x7fff8000(%1)")
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: ZFLAG_CONSTRAINT(zf)
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: "r"((intptr_t)ts >> 3)
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: "memory");
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return zf;
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}
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forceinline bool __asan_is_valid_timeval(const struct timeval *tv) {
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return __asan_is_valid_timespec((const struct timespec *)tv);
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}
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CALLS_ASAN_INTERNAL_H_ */
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