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| author |   Masami Hiramatsu <mhiramat@redhat.com> | 2010-05-10 13:12:07 -0400 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-05-17 22:13:51 -0300 |
| commit | 7752f1b096e13991f20b59fd11ba73da3809d93c (patch) | |
| tree | 9a30ef1d2a8f665bc0d1d00d2011e5036b21ef73 /tools/perf/util/probe-finder.c | |
| parent | perf tools: Add mode to build without newt support (diff) | |
| download | linux-dev-7752f1b096e13991f20b59fd11ba73da3809d93c.tar.xz linux-dev-7752f1b096e13991f20b59fd11ba73da3809d93c.zip | |
perf probe: Don't compile CFI related code if elfutils is old
Check elfutils version, and if it is old don't compile CFI analysis code. This
allows to compile perf with old elfutils.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Tested-by: Stephane Eranian <eranian@google.com>
Reported-by: Robert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20100510171207.26029.97604.stgit@localhost6.localdomain6>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-finder.c')
| -rw-r--r-- | tools/perf/util/probe-finder.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 562b1443e785..93583eb19cd6 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -668,6 +668,7 @@ static int convert_probe_point(Dwarf_Die *sp_die, struct probe_finder *pf) ret = dwarf_getlocation_addr(&fb_attr, pf->addr, &pf->fb_ops, &nops, 1); if (ret <= 0 || nops == 0) { pf->fb_ops = NULL; +#if _ELFUTILS_PREREQ(0, 142) } else if (nops == 1 && pf->fb_ops[0].atom == DW_OP_call_frame_cfa && pf->cfi != NULL) { Dwarf_Frame *frame; @@ -677,6 +678,7 @@ static int convert_probe_point(Dwarf_Die *sp_die, struct probe_finder *pf) (uintmax_t)pf->addr); return -ENOENT; } +#endif } /* Find each argument */ @@ -956,8 +958,10 @@ int find_kprobe_trace_events(int fd, struct perf_probe_event *pev, return -EBADF; } +#if _ELFUTILS_PREREQ(0, 142) /* Get the call frame information from this dwarf */ pf.cfi = dwarf_getcfi(dbg); +#endif off = 0; line_list__init(&pf.lcache); |