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>

6 files changed, 17 insertions, 1 deletions

diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index 98a31e3181a5..0102d83600db 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -83,6 +83,9 @@ OPTIONS
 --symfs=<directory>::
         Look for files with symbols relative to this directory.
 
+-M::
+--disassembler-style=:: Set disassembler style for objdump.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-report[1]
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 04253c07d19a..6349b6c0e3ec 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -134,6 +134,9 @@ OPTIONS
         CPUs are specified with -: 0-2. Default is to report samples on all
         CPUs.
 
+-M::
+--disassembler-style=:: Set disassembler style for objdump.
+
 SEE ALSO
 --------
 linkperf:perf-stat[1]
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index c5be28851f01..cf68819f7453 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -273,6 +273,8 @@ static const struct option options[] = {
                     "Interleave source code with assembly code (default)"),
         OPT_BOOLEAN('0', "asm-raw", &symbol_conf.annotate_asm_raw,
                     "Display raw encoding of assembly instructions (default)"),
+        OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
+                   "Specify disassembler style (e.g. -M intel for intel syntax)"),
         OPT_END()
 };
 
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index d7ff277bdb78..a0673eeeae8d 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -487,6 +487,8 @@ static const struct option options[] = {
         OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
                     "Look for files with symbols relative to this directory"),
         OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
+        OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
+                   "Specify disassembler style (e.g. -M intel for intel syntax)"),
         OPT_END()
 };
 
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 */