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authorNamhyung Kim <namhyung.kim@lge.com>2012-11-02 14:50:04 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-11-05 14:03:58 -0300
commit48ed0ece1b8063313284812ef048b26c3c4250af (patch)
tree8ff3851d73b25874bc695477e3d85944f84e5acd /tools/perf/arch
parentb84800a31502ab75c0032192de01e61a0d517f38 (diff)
downloadop-kernel-dev-48ed0ece1b8063313284812ef048b26c3c4250af.zip
op-kernel-dev-48ed0ece1b8063313284812ef048b26c3c4250af.tar.gz
perf tools: Use normalized arch name for searching objdump path
David reported that perf report for i686 target data on x86_64 host failed to work because it tried to find out cross-compiled objdump. However objdump for x86_64 is compatible to i686 so that it doesn't need to do it at all. To prevent similar artifacts, normalize arch name when comparing host and file architectures. Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Irina Tirdea <irina.tirdea@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351835406-15208-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/arch')
-rw-r--r--tools/perf/arch/common.c40
1 files changed, 33 insertions, 7 deletions
diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
index 2367b25..5683529 100644
--- a/tools/perf/arch/common.c
+++ b/tools/perf/arch/common.c
@@ -93,16 +93,46 @@ static int lookup_triplets(const char *const *triplets, const char *name)
return -1;
}
+/*
+ * Return architecture name in a normalized form.
+ * The conversion logic comes from the Makefile.
+ */
+static const char *normalize_arch(char *arch)
+{
+ if (!strcmp(arch, "x86_64"))
+ return "x86";
+ if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
+ return "x86";
+ if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
+ return "sparc";
+ if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
+ return "arm";
+ if (!strncmp(arch, "s390", 4))
+ return "s390";
+ if (!strncmp(arch, "parisc", 6))
+ return "parisc";
+ if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
+ return "powerpc";
+ if (!strncmp(arch, "mips", 4))
+ return "mips";
+ if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
+ return "sh";
+
+ return arch;
+}
+
static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
const char *name,
const char **path)
{
int idx;
- char *arch, *cross_env;
+ const char *arch, *cross_env;
struct utsname uts;
const char *const *path_list;
char *buf = NULL;
+ arch = normalize_arch(env->arch);
+
if (uname(&uts) < 0)
goto out;
@@ -110,7 +140,7 @@ static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
* We don't need to try to find objdump path for native system.
* Just use default binutils path (e.g.: "objdump").
*/
- if (!strcmp(uts.machine, env->arch))
+ if (!strcmp(normalize_arch(uts.machine), arch))
goto out;
cross_env = getenv("CROSS_COMPILE");
@@ -127,8 +157,6 @@ static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
free(buf);
}
- arch = env->arch;
-
if (!strcmp(arch, "arm"))
path_list = arm_triplets;
else if (!strcmp(arch, "powerpc"))
@@ -139,9 +167,7 @@ static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
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"))
+ else if (!strcmp(arch, "x86"))
path_list = x86_triplets;
else if (!strcmp(arch, "mips"))
path_list = mips_triplets;
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