[PATCH] perf: introduce new two options for objdump.

[Martin Liška]

Newly introduced options usedfull for off-box usage:
  --objdump-prefix: specify prefix to add to the absolute paths
  where objdump looks for source files.
  --objdump-prefix-strip: indicate how many initial directory names
  to strip off the hardwired absolute paths, passed to objdump.
  It has no effect without --objdump-prefix.

Signed-off-by: Martin Liska <mliska@xxxxxxx>

---
 tools/perf/Documentation/perf-annotate.txt |  6 ++++++
 tools/perf/Documentation/perf-report.txt   |  6 ++++++
 tools/perf/Documentation/perf-top.txt      | 10 ++++++++++
 tools/perf/builtin-annotate.c              |  5 +++++
 tools/perf/builtin-report.c                |  5 +++++
 tools/perf/builtin-top.c                   |  5 +++++
 tools/perf/util/annotate.c                 |  8 +++++++-
 tools/perf/util/annotate.h                 |  2 ++
 8 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index e9cd39a..4d2a5be 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -90,6 +90,12 @@ OPTIONS
 --objdump=<path>::
         Path to objdump binary.
 
+--objdump-prefix=<path>::
+	Specify prefix to add to the absolute paths where objdump looks for source files.
+
+--objdump-prefix-strip=<level>::
+	Indicate how many initial directory names to strip off the hardwired absolute paths, passed to objdump. It has no effect without --objdump-prefix.
+
 --skip-missing::
 	Skip symbols that cannot be annotated.
 
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index dd7cccd..8e1ed80 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -279,6 +279,12 @@ OPTIONS
 --objdump=<path>::
         Path to objdump binary.
 
+--objdump-prefix=<path>::
+	Specify prefix to add to the absolute paths where objdump looks for source files.
+
+--objdump-prefix-strip=<level>::
+	Indicate how many initial directory names to strip off the hardwired absolute paths, passed to objdump. It has no effect without --objdump-prefix.
+
 --group::
 	Show event group information together.
 
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 3265b10..6e71045 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -157,6 +157,16 @@ Default is to monitor all CPUS.
 --asm-raw::
 	Show raw instruction encoding of assembly instructions.
 
+--objdump=<path>::
+        Path to objdump binary.
+
+--objdump-prefix=<path>::
+	Specify prefix to add to the absolute paths where objdump looks for source files.
+
+--objdump-prefix-strip=<level>::
+	Indicate how many initial directory names to strip off the hardwired absolute paths, passed to objdump. It has no effect without --objdump-prefix.
+
+
 -g::
 	Enables call-graph (stack chain/backtrace) recording.
 
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 747f861..25b84b1 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -322,6 +322,11 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 		   "Specify disassembler style (e.g. -M intel for intel syntax)"),
 	OPT_STRING(0, "objdump", &objdump_path, "path",
 		   "objdump binary to use for disassembly and annotations"),
+	OPT_STRING(0, "objdump-prefix", &objdump_prefix_path, "path",
+		   "prefix to the absolute paths where objdump looks for source files"),
+	OPT_STRING(0, "objdump-prefix-strip", &objdump_prefix_strip, "level",
+		   "Indicate how many initial directory names to strip off the hardwired "
+		   "absolute paths, passed to objdump."),
 	OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
 		    "Show event group information together"),
 	OPT_END()
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 072ae8a..c4f2c2f 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -712,6 +712,11 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "add last branch records to call history"),
 	OPT_STRING(0, "objdump", &objdump_path, "path",
 		   "objdump binary to use for disassembly and annotations"),
+	OPT_STRING(0, "objdump-prefix", &objdump_prefix_path, "path",
+		   "prefix to the absolute paths where objdump looks for source files"),
+	OPT_STRING(0, "objdump-prefix-strip", &objdump_prefix_strip, "level",
+		   "Indicate how many initial directory names to strip off the hardwired "
+		   "absolute paths, passed to objdump."),
 	OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
 		    "Disable symbol demangling"),
 	OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 616f0fc..ac70949 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1147,6 +1147,11 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "Enable kernel symbol demangling"),
 	OPT_STRING(0, "objdump", &objdump_path, "path",
 		    "objdump binary to use for disassembly and annotations"),
+	OPT_STRING(0, "objdump-prefix", &objdump_prefix_path, "path",
+		   "prefix to the absolute paths where objdump looks for source files"),
+	OPT_STRING(0, "objdump-prefix-strip", &objdump_prefix_strip, "level",
+		   "Indicate how many initial directory names to strip off the hardwired "
+		   "absolute paths, passed to objdump."),
 	OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
 		   "Specify disassembler style (e.g. -M intel for intel syntax)"),
 	OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 79999ce..ec62c0b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -23,6 +23,8 @@
 
 const char 	*disassembler_style;
 const char	*objdump_path;
+const char	*objdump_prefix_path;
+const char	*objdump_prefix_strip;
 static regex_t	 file_lineno;
 
 static struct ins *ins__find(const char *name);
@@ -1001,12 +1003,16 @@ fallback:
 	}
 
 	snprintf(command, sizeof(command),
-		 "%s %s%s --start-address=0x%016" PRIx64
+		 "%s %s%s %s%s %s%s --start-address=0x%016" PRIx64
 		 " --stop-address=0x%016" PRIx64
 		 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
 		 objdump_path ? objdump_path : "objdump",
 		 disassembler_style ? "-M " : "",
 		 disassembler_style ? disassembler_style : "",
+		 objdump_prefix_path ? "--prefix=" : "",
+		 objdump_prefix_path ? objdump_prefix_path : "",
+		 objdump_prefix_strip ? "--prefix-strip=" : "",
+		 objdump_prefix_strip ? objdump_prefix_strip : "",
 		 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 cadbdc9..fd9782e 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -168,5 +168,7 @@ static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
 #endif
 
 extern const char	*disassembler_style;
+extern const char	*objdump_prefix_path;
+extern const char	*objdump_prefix_strip;
 
 #endif	/* __PERF_ANNOTATE_H */
--
2.1.2

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