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4924734570
If not, tell the user that: config/Makefile:273: Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157 And return -ENOTSUPP in die_get_var_range(), failing features that need it, like the one pointed out above. This fixes the build on older systems, such as Ubuntu 12.04.5. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Vinson Lee <vlee@freedesktop.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-9l7luqkq4gfnx7vrklkq4obs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
12 lines
268 B
C
12 lines
268 B
C
#include <stdlib.h>
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#include <elfutils/libdw.h>
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int main(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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