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e6fbd1759c
This follow-up patch completes centralization of kselftest.h and ksefltest_harness.h includes in remaining seltests files, replacing all relative paths with a non-relative paths using shared -I include path in lib.mk Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on riscv, arm64, x86_64 and powerpc arch. [reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h] Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/ Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Günther Noack <gnoack@google.com> Cc: Jakub Kacinski <kuba@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mickael Salaun <mic@digikod.net> Cc: Ming Lei <ming.lei@redhat.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Simon Horman <horms@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* vdso_test_getcpu.c: Sample code to test parse_vdso.c and vDSO getcpu()
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*
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* Copyright (c) 2020 Arm Ltd
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*/
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#include <stdint.h>
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#include <elf.h>
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#include <stdio.h>
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#include <sys/auxv.h>
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#include <sys/time.h>
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#include "kselftest.h"
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#include "parse_vdso.h"
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#include "vdso_config.h"
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#include "vdso_call.h"
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struct getcpu_cache;
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typedef long (*getcpu_t)(unsigned int *, unsigned int *,
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struct getcpu_cache *);
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int main(int argc, char **argv)
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{
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const char *version = versions[VDSO_VERSION];
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const char **name = (const char **)&names[VDSO_NAMES];
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unsigned long sysinfo_ehdr;
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unsigned int cpu, node;
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getcpu_t get_cpu;
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long ret;
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sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR);
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if (!sysinfo_ehdr) {
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printf("AT_SYSINFO_EHDR is not present!\n");
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return KSFT_SKIP;
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}
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vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR));
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get_cpu = (getcpu_t)vdso_sym(version, name[4]);
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if (!get_cpu) {
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printf("Could not find %s\n", name[4]);
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return KSFT_SKIP;
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}
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ret = VDSO_CALL(get_cpu, 3, &cpu, &node, 0);
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if (ret == 0) {
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printf("Running on CPU %u node %u\n", cpu, node);
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} else {
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printf("%s failed\n", name[4]);
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return KSFT_FAIL;
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}
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return 0;
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}
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