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Message-Id: <1349678613-7045-7-git-send-email-irina.tirdea@gmail.com>
Date: Mon, 8 Oct 2012 09:43:31 +0300
From: Irina Tirdea <irina.tirdea@...il.com>
To: Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
Ingo Molnar <mingo@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: LKML <linux-kernel@...r.kernel.org>,
Paul Mackerras <paulus@...ba.org>,
David Ahern <dsahern@...il.com>,
Namhyung Kim <namhyung@...nel.org>,
Pekka Enberg <penberg@...nel.org>,
Jiri Olsa <jolsa@...hat.com>,
Namhyung Kim <namhyung.kim@....com>,
Irina Tirdea <irina.tirdea@...el.com>
Subject: [PATCH v3 6/8] perf tools: Try to find cross-built objdump path
From: Namhyung Kim <namhyung.kim@....com>
As we have architecture information of saved perf.data file, we can
try to find cross-built objdump path.
The triplets include support for Android (arm, x86 and mips architectures).
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Signed-off-by: Irina Tirdea <irina.tirdea@...el.com>
---
tools/perf/Makefile | 2 +
tools/perf/arch/common.c | 159 +++++++++++++++++++++++++++++++++++++++++
tools/perf/arch/common.h | 10 +++
tools/perf/builtin-annotate.c | 4 ++
tools/perf/builtin-report.c | 1 +
tools/perf/util/annotate.h | 1 -
6 files changed, 176 insertions(+), 1 deletion(-)
create mode 100644 tools/perf/arch/common.c
create mode 100644 tools/perf/arch/common.h
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 29caf9a..5149b8a 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -426,6 +426,8 @@ LIB_OBJS += $(OUTPUT)ui/helpline.o
LIB_OBJS += $(OUTPUT)ui/hist.o
LIB_OBJS += $(OUTPUT)ui/stdio/hist.o
+LIB_OBJS += $(OUTPUT)arch/common.o
+
BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
BUILTIN_OBJS += $(OUTPUT)builtin-bench.o
# Benchmark modules
diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
new file mode 100644
index 0000000..1db891f
--- /dev/null
+++ b/tools/perf/arch/common.c
@@ -0,0 +1,159 @@
+#include <stdio.h>
+#include <sys/utsname.h>
+#include "common.h"
+
+const char *const arm_triplets[] = {
+ "arm-eabi-",
+ "arm-linux-androideabi-",
+ "arm-unknown-linux-",
+ "arm-unknown-linux-gnu-",
+ "arm-unknown-linux-gnueabi-",
+ NULL
+};
+
+const char *const powerpc_triplets[] = {
+ "powerpc-unknown-linux-gnu-",
+ "powerpc64-unknown-linux-gnu-",
+ NULL
+};
+
+const char *const s390_triplets[] = {
+ "s390-ibm-linux-",
+ NULL
+};
+
+const char *const sh_triplets[] = {
+ "sh-unknown-linux-gnu-",
+ "sh64-unknown-linux-gnu-",
+ NULL
+};
+
+const char *const sparc_triplets[] = {
+ "sparc-unknown-linux-gnu-",
+ "sparc64-unknown-linux-gnu-",
+ NULL
+};
+
+const char *const x86_triplets[] = {
+ "x86_64-pc-linux-gnu-",
+ "x86_64-unknown-linux-gnu-",
+ "i686-pc-linux-gnu-",
+ "i586-pc-linux-gnu-",
+ "i486-pc-linux-gnu-",
+ "i386-pc-linux-gnu-",
+ "i686-linux-android-",
+ "i686-android-linux-",
+ NULL
+};
+
+const char *const mips_triplets[] = {
+ "mips-unknown-linux-gnu-",
+ "mipsel-linux-android-",
+ NULL
+};
+
+static bool lookup_path(char *name)
+{
+ bool found = false;
+ char *path, *tmp;
+ char buf[PATH_MAX];
+ char *env = getenv("PATH");
+
+ if (!env)
+ return false;
+
+ env = strdup(env);
+ if (!env)
+ return false;
+
+ path = strtok_r(env, ":", &tmp);
+ while (path) {
+ scnprintf(buf, sizeof(buf), "%s/%s", path, name);
+ if (access(buf, F_OK) == 0) {
+ found = true;
+ break;
+ }
+ path = strtok_r(NULL, ":", &tmp);
+ }
+ free(env);
+ return found;
+}
+
+static int lookup_triplets(const char *const *triplets, const char *name)
+{
+ int i;
+ char buf[PATH_MAX];
+
+ for (i = 0; triplets[i] != NULL; i++) {
+ scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name);
+ if (lookup_path(buf))
+ return i;
+ }
+ return -1;
+}
+
+static char *try_binutils_path(struct perf_session *session, const char *name)
+{
+ int idx;
+ char *arch, *env;
+ struct utsname uts;
+ const char *const *path_list;
+ char buf[PATH_MAX];
+
+ if (uname(&uts) < 0)
+ return NULL;
+
+ /*
+ * We don't need to try to find objdump path for native system.
+ * Just use default "objdump".
+ */
+ if (!strcmp(uts.machine, session->header.env.arch))
+ return NULL;
+
+ env = getenv("CROSS_COMPILE");
+ if (env) {
+ scnprintf(buf, sizeof(buf), "%s%s", env, name);
+ if (buf[0] == '/') {
+ if (access(buf, F_OK) == 0)
+ return strdup(buf);
+
+ return NULL;
+ }
+
+ if (lookup_path(buf))
+ return strdup(buf);
+ }
+
+ arch = session->header.env.arch;
+
+ if (!strcmp(arch, "arm"))
+ path_list = arm_triplets;
+ else if (!strcmp(arch, "powerpc"))
+ path_list = powerpc_triplets;
+ else if (!strcmp(arch, "sh"))
+ path_list = sh_triplets;
+ else if (!strcmp(arch, "s390"))
+ path_list = s390_triplets;
+ else if (!strcmp(arch, "sparc"))
+ path_list = sparc_triplets;
+ else if (!strcmp(arch, "x86") || !strcmp(arch, "i386") ||
+ !strcmp(arch, "i486") || !strcmp(arch, "i586") ||
+ !strcmp(arch, "i686"))
+ path_list = x86_triplets;
+ else if (!strcmp(arch, "mips"))
+ path_list = mips_triplets;
+ else
+ BUG_ON(1);
+
+ idx = lookup_triplets(path_list, name);
+ if (idx < 0)
+ return NULL;
+
+ scnprintf(buf, sizeof(buf), "%s%s", path_list[idx], name);
+ return strdup(buf);
+}
+
+void try_objdump_path(struct perf_session *session)
+{
+ objdump_path = try_binutils_path(session, "objdump");
+}
diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h
new file mode 100644
index 0000000..d88ecc3
--- /dev/null
+++ b/tools/perf/arch/common.h
@@ -0,0 +1,10 @@
+#ifndef ARCH_PERF_COMMON_H
+#define ARCH_PERF_COMMON_H
+
+#include "session.h"
+
+extern const char *objdump_path;
+
+void try_objdump_path(struct perf_session *session);
+
+#endif /* ARCH_PERF_COMMON_H */
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 9ea3854..8d90ab5 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -28,6 +28,7 @@
#include "util/hist.h"
#include "util/session.h"
#include "util/tool.h"
+#include "arch/common.h"
#include <linux/bitmap.h>
@@ -186,6 +187,9 @@ static int __cmd_annotate(struct perf_annotate *ann)
goto out_delete;
}
+ if (!objdump_path)
+ try_objdump_path(session);
+
ret = perf_session__process_events(session, &ann->tool);
if (ret)
goto out_delete;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index a61725d..e1549bc 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -33,6 +33,7 @@
#include "util/thread.h"
#include "util/sort.h"
#include "util/hist.h"
+#include "arch/common.h"
#include <linux/bitmap.h>
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 39242dc..a4dd25a 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -154,6 +154,5 @@ static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
#endif
extern const char *disassembler_style;
-extern const char *objdump_path;
#endif /* __PERF_ANNOTATE_H */
--
1.7.9.5
--
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