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7c1e94f5dc
There's some expressed interest in having the compiler flag -Wconversion detect at build time certain kinds of potential problems: https://lore.kernel.org/lkml/20250103182532.GB781381@e132581.arm.com/ As feature detection passes -Wconversion from CFLAGS when set, the feature detection compile tests need to not fail because of -Wconversion as the failure will be interpretted as a missing feature. Switch various types to avoid the -Wconversion issue, the exact meaning of the code is unimportant as it is typically looking for header file definitions. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: James Clark <james.clark@linaro.org> Link: https://lore.kernel.org/r/20250106215443.198633-1-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
56 lines
1 KiB
C
56 lines
1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdlib.h>
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#include <dwarf.h>
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#include <elfutils/libdw.h>
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#include <elfutils/libdwfl.h>
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#include <elfutils/version.h>
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int test_libdw(void)
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{
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Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
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return dbg == NULL;
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}
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int test_libdw_unwind(void)
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{
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/*
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* This function is guarded via: __nonnull_attribute__ (1, 2).
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* Passing '1' as arguments value. This code is never executed,
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* only compiled.
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*/
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dwfl_thread_getframes((void *) 1, (void *) 1, NULL);
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return 0;
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}
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int test_libdw_getlocations(void)
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{
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Dwarf_Addr base, start, end;
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Dwarf_Attribute attr;
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Dwarf_Op *op;
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size_t nops;
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ptrdiff_t offset = 0;
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return (int)dwarf_getlocations(&attr, offset, &base, &start, &end, &op, &nops);
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}
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int test_libdw_getcfi(void)
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{
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Dwarf *dwarf = NULL;
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return dwarf_getcfi(dwarf) == NULL;
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}
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int test_elfutils(void)
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{
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Dwarf_CFI *cfi = NULL;
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dwarf_cfi_end(cfi);
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return 0;
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}
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int main(void)
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{
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return test_libdw() + test_libdw_unwind() + test_libdw_getlocations() +
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test_libdw_getcfi() + test_elfutils();
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}
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