Dmitry V. Levin
f9b455cfd2
* time.c (current_time_t_is_int32): Define. (sys_time): Use it, printnum_int, and printnum_int64 instead of printnum_long. * tests/time.c: New file. * tests/time.test: New test. * tests/Makefile.am (check_PROGRAMS): Add time. (TESTS): Add time.test. * tests/.gitignore: Add time.
44 lines
712 B
C
44 lines
712 B
C
#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <time.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/syscall.h>
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#ifdef __NR_time
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int
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main(void)
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{
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const size_t page_len = sysconf(_SC_PAGESIZE);
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void *p = mmap(NULL, page_len * 2, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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if (p == MAP_FAILED || mprotect(p + page_len, page_len, PROT_NONE))
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return 77;
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time_t *p_t = p + page_len - sizeof(time_t);
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time_t t = syscall(__NR_time, p_t);
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if ((time_t) -1 == t || t != *p_t)
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return 77;
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printf("time\\(\\[%jd\\]\\) += %jd\n", (intmax_t) t, (intmax_t) t);
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return 0;
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}
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#else
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int
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main(void)
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{
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return 77;
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}
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#endif
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