perf probe: Use dwarf_getcfi_elf() instead of dwarf_getcfi()
The dwarf_getcfi() only checks .debug_frame section for CFI, but as most binaries only have .eh_frame it'd return NULL and it makes some variables inaccessible. Using dwarf_getcfi_elf (along with dwarf_getelf()) allows to show and add probe to more variables. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Link: http://lkml.kernel.org/r/1396854348-9296-1-git-send-email-namhyung@kernel.org Signed-off-by: Jiri Olsa <jolsa@redhat.com>
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@ -985,7 +985,7 @@ static int debuginfo__find_probes(struct debuginfo *dbg,
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#if _ELFUTILS_PREREQ(0, 142)
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/* Get the call frame information from this dwarf */
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pf->cfi = dwarf_getcfi(dbg->dbg);
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pf->cfi = dwarf_getcfi_elf(dwarf_getelf(dbg->dbg));
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#endif
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off = 0;
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