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authorJiri Olsa <jolsa@redhat.com>2014-01-07 16:47:28 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-02-18 16:34:48 +0400
commit9ff125d132001c02d32a193a9423be0690526e11 (patch)
tree608fc071ded7d3b182df10641d2316ed0d9c5044 /tools/perf/util/unwind.h
parentea3da69df959dfa1c807586c061bfcc4ec7e5e17 (diff)
downloadlinux-9ff125d132001c02d32a193a9423be0690526e11.tar.xz
perf callchain: Introduce HAVE_DWARF_UNWIND_SUPPORT macro
Introducing global macro HAVE_DWARF_UNWIND_SUPPORT to indicate we have dwarf unwind support. Any library providing the dwarf post unwind support will enable this macro. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Jean Pihet <jean.pihet@linaro.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1389098853-14466-12-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/unwind.h')
-rw-r--r--tools/perf/util/unwind.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h
index 18f33b475c46..b031316f221a 100644
--- a/tools/perf/util/unwind.h
+++ b/tools/perf/util/unwind.h
@@ -13,12 +13,15 @@ struct unwind_entry {
typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
-#ifdef HAVE_LIBUNWIND_SUPPORT
+#ifdef HAVE_DWARF_UNWIND_SUPPORT
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
struct machine *machine,
struct thread *thread,
struct perf_sample *data, int max_stack);
+/* libunwind specific */
+#ifdef HAVE_LIBUNWIND_SUPPORT
int libunwind__arch_reg_id(int regnum);
+#endif
#else
static inline int
unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
@@ -30,5 +33,5 @@ unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
{
return 0;
}
-#endif /* HAVE_LIBUNWIND_SUPPORT */
+#endif /* HAVE_DWARF_UNWIND_SUPPORT */
#endif /* __UNWIND_H */