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authorArnaldo Carvalho de Melo <acme@redhat.com>2017-12-11 14:47:49 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-12-27 12:15:52 -0300
commit4e8fbc1c975c667c61a3073da81b338b9bf61c37 (patch)
treee4a27eb5ee86c43a49e898ac8416487f5c68a6e5 /tools/perf/arch
parent3285debaf5992f9729ba33e3f31eff5253d29dc4 (diff)
downloadlinux-4e8fbc1c975c667c61a3073da81b338b9bf61c37.tar.bz2
perf env: Adopt perf_env__arch() from the annotate code
And use it in the libunwind case, with both passing a valid perf_env to extract the arch to be normalized from and passing NULL with the same semantic as in the annotate code: to get it from uname() uts.machine. Now the code to generate per arch errno translation tables (int/string) can use it to decode perf.data files recorded in a different arch than that where 'perf trace' (or any other analysis tool) runs. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Thomas Richter <tmricht@linux.vnet.ibm.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-p2epffgash69w38kvj3ntpc9@git.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.c44
-rw-r--r--tools/perf/arch/common.h1
2 files changed, 3 insertions, 42 deletions
diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
index 8c0cfeb55f8e..c6f373508a4f 100644
--- a/tools/perf/arch/common.c
+++ b/tools/perf/arch/common.c
@@ -1,12 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
-#include <sys/utsname.h>
#include "common.h"
+#include "../util/env.h"
#include "../util/util.h"
#include "../util/debug.h"
-#include "sane_ctype.h"
-
const char *const arm_triplets[] = {
"arm-eabi-",
"arm-linux-androideabi-",
@@ -120,55 +118,19 @@ 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.
- */
-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 (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64"))
- return "arm64";
- 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_env__lookup_binutils_path(struct perf_env *env,
const char *name, const char **path)
{
int idx;
- const char *arch, *cross_env;
- struct utsname uts;
+ const char *arch = perf_env__arch(env), *cross_env;
const char *const *path_list;
char *buf = NULL;
- arch = normalize_arch(env->arch);
-
- if (uname(&uts) < 0)
- goto out;
-
/*
* We don't need to try to find objdump path for native system.
* Just use default binutils path (e.g.: "objdump").
*/
- if (!strcmp(normalize_arch(uts.machine), arch))
+ if (!strcmp(perf_env__arch(NULL), arch))
goto out;
cross_env = getenv("CROSS_COMPILE");
diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h
index a1546509ad24..2d875baa92e6 100644
--- a/tools/perf/arch/common.h
+++ b/tools/perf/arch/common.h
@@ -7,6 +7,5 @@
extern const char *objdump_path;
int perf_env__lookup_objdump(struct perf_env *env);
-const char *normalize_arch(char *arch);
#endif /* ARCH_PERF_COMMON_H */