perf: Support setting the disassembler style

Add -M option to report/annotate to pass directly to objdump.  This
allows to use -M intel for intel style disassembler syntax, which is
useful for people who are very used to the Intel syntax.

Link: http://lkml.kernel.org/r/1316122302-24306-2-git-send-email-andi@firstfloor.org
[committer note: Add missing Documentation bits, fixup conflicts with 3e6a2a7]
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 7 insertions, 1 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 01d36ba54053..bc8f4773d4d8 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -16,6 +16,8 @@
 #include "annotate.h"
 #include <pthread.h>
 
+const char      *disassembler_style;
+
 int symbol__annotate_init(struct map *map __used, struct symbol *sym)
 {
         struct annotation *notes = symbol__annotation(sym);
@@ -323,9 +325,11 @@ fallback:
                  dso, dso->long_name, sym, sym->name);
 
         snprintf(command, sizeof(command),
-                 "objdump --start-address=0x%016" PRIx64
+                 "objdump %s%s --start-address=0x%016" PRIx64
                  " --stop-address=0x%016" PRIx64
                  " -d %s %s -C %s|grep -v %s|expand",
+                 disassembler_style ? "-M " : "",
+                 disassembler_style ? disassembler_style : "",
                  map__rip_2objdump(map, sym->start),
                  map__rip_2objdump(map, sym->end),
                  symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index c2c286896801..6ede1286ee71 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -100,4 +100,6 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
                          int refresh);
 #endif
 
+extern const char       *disassembler_style;
+
 #endif  /* __PERF_ANNOTATE_H */