diff options
Diffstat (limited to 'tools/testing/selftests/vDSO/vdso_standalone_test_x86.c')
l---------[-rw-r--r--] | tools/testing/selftests/vDSO/vdso_standalone_test_x86.c | 59 |
1 files changed, 1 insertions, 58 deletions
diff --git a/tools/testing/selftests/vDSO/vdso_standalone_test_x86.c b/tools/testing/selftests/vDSO/vdso_standalone_test_x86.c index 9ce795b806f0..4d3d96f1e440 100644..120000 --- a/tools/testing/selftests/vDSO/vdso_standalone_test_x86.c +++ b/tools/testing/selftests/vDSO/vdso_standalone_test_x86.c @@ -1,58 +1 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * vdso_test_gettimeofday.c: Sample code to test parse_vdso.c and - * vDSO gettimeofday() - * Copyright (c) 2014 Andy Lutomirski - * - * Compile with: - * gcc -std=gnu99 vdso_test_gettimeofday.c parse_vdso_gettimeofday.c - * - * Tested on x86, 32-bit and 64-bit. It may work on other architectures, too. - */ - -#include <stdio.h> -#ifndef NOLIBC -#include <sys/auxv.h> -#include <sys/time.h> -#endif - -#include "../kselftest.h" -#include "parse_vdso.h" -#include "vdso_config.h" -#include "vdso_call.h" - -int main(int argc, char **argv) -{ - const char *version = versions[VDSO_VERSION]; - const char **name = (const char **)&names[VDSO_NAMES]; - - unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR); - if (!sysinfo_ehdr) { - printf("AT_SYSINFO_EHDR is not present!\n"); - return KSFT_SKIP; - } - - vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR)); - - /* Find gettimeofday. */ - typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz); - gtod_t gtod = (gtod_t)vdso_sym(version, name[0]); - - if (!gtod) { - printf("Could not find %s\n", name[0]); - return KSFT_SKIP; - } - - struct timeval tv; - long ret = VDSO_CALL(gtod, 2, &tv, 0); - - if (ret == 0) { - printf("The time is %lld.%06lld\n", - (long long)tv.tv_sec, (long long)tv.tv_usec); - } else { - printf("%s failed\n", name[0]); - return KSFT_FAIL; - } - - return 0; -} +vdso_test_gettimeofday.c
\ No newline at end of file |