summaryrefslogtreecommitdiff
path: root/tools/perf/util/probe-finder.c
diff options
context:
space:
mode:
authorMasami Hiramatsu <mhiramat@redhat.com>2010-05-10 17:12:07 (GMT)
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-05-18 01:13:51 (GMT)
commit7752f1b096e13991f20b59fd11ba73da3809d93c (patch)
tree9a30ef1d2a8f665bc0d1d00d2011e5036b21ef73 /tools/perf/util/probe-finder.c
parent94f3ca95787ada3d64339a4ecb2754236ab563f6 (diff)
downloadlinux-fsl-qoriq-7752f1b096e13991f20b59fd11ba73da3809d93c.tar.xz
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.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 562b144..93583eb 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);