Define macro for each normalized arch name and use them instead
of using arch name as string.

Signed-off-by: Ravi Bangoria <ravi.bango...@linux.vnet.ibm.com>
---
Changes in v5:
  - No changes.

 tools/perf/arch/common.c           | 36 ++++++++++++++++++------------------
 tools/perf/arch/common.h           | 11 +++++++++++
 tools/perf/util/unwind-libunwind.c |  4 ++--
 3 files changed, 31 insertions(+), 20 deletions(-)

diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
index 886dd2a..f763666 100644
--- a/tools/perf/arch/common.c
+++ b/tools/perf/arch/common.c
@@ -123,25 +123,25 @@ static int lookup_triplets(const char *const *triplets, 
const char *name)
 const char *normalize_arch(char *arch)
 {
        if (!strcmp(arch, "x86_64"))
-               return "x86";
+               return NORM_X86;
        if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
-               return "x86";
+               return NORM_X86;
        if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
-               return "sparc";
+               return NORM_SPARC;
        if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64"))
-               return "arm64";
+               return NORM_ARM64;
        if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
-               return "arm";
+               return NORM_ARM;
        if (!strncmp(arch, "s390", 4))
-               return "s390";
+               return NORM_S390;
        if (!strncmp(arch, "parisc", 6))
-               return "parisc";
+               return NORM_PARISC;
        if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
-               return "powerpc";
+               return NORM_POWERPC;
        if (!strncmp(arch, "mips", 4))
-               return "mips";
+               return NORM_MIPS;
        if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
-               return "sh";
+               return NORM_SH;
 
        return arch;
 }
@@ -181,21 +181,21 @@ static int perf_env__lookup_binutils_path(struct perf_env 
*env,
                zfree(&buf);
        }
 
-       if (!strcmp(arch, "arm"))
+       if (!strcmp(arch, NORM_ARM))
                path_list = arm_triplets;
-       else if (!strcmp(arch, "arm64"))
+       else if (!strcmp(arch, NORM_ARM64))
                path_list = arm64_triplets;
-       else if (!strcmp(arch, "powerpc"))
+       else if (!strcmp(arch, NORM_POWERPC))
                path_list = powerpc_triplets;
-       else if (!strcmp(arch, "sh"))
+       else if (!strcmp(arch, NORM_SH))
                path_list = sh_triplets;
-       else if (!strcmp(arch, "s390"))
+       else if (!strcmp(arch, NORM_S390))
                path_list = s390_triplets;
-       else if (!strcmp(arch, "sparc"))
+       else if (!strcmp(arch, NORM_SPARC))
                path_list = sparc_triplets;
-       else if (!strcmp(arch, "x86"))
+       else if (!strcmp(arch, NORM_X86))
                path_list = x86_triplets;
-       else if (!strcmp(arch, "mips"))
+       else if (!strcmp(arch, NORM_MIPS))
                path_list = mips_triplets;
        else {
                ui__error("binutils for %s not supported.\n", arch);
diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h
index 6b01c73..14ca8ca 100644
--- a/tools/perf/arch/common.h
+++ b/tools/perf/arch/common.h
@@ -5,6 +5,17 @@
 
 extern const char *objdump_path;
 
+/* Macro for normalized arch names */
+#define NORM_X86       "x86"
+#define NORM_SPARC     "sparc"
+#define NORM_ARM64     "arm64"
+#define NORM_ARM       "arm"
+#define NORM_S390      "s390"
+#define NORM_PARISC    "parisc"
+#define NORM_POWERPC   "powerpc"
+#define NORM_MIPS      "mips"
+#define NORM_SH                "sh"
+
 int perf_env__lookup_objdump(struct perf_env *env);
 const char *normalize_arch(char *arch);
 
diff --git a/tools/perf/util/unwind-libunwind.c 
b/tools/perf/util/unwind-libunwind.c
index 6d542a4..6199102 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -40,10 +40,10 @@ int unwind__prepare_access(struct thread *thread, struct 
map *map,
 
        arch = normalize_arch(thread->mg->machine->env->arch);
 
-       if (!strcmp(arch, "x86")) {
+       if (!strcmp(arch, NORM_X86)) {
                if (dso_type != DSO__TYPE_64BIT)
                        ops = x86_32_unwind_libunwind_ops;
-       } else if (!strcmp(arch, "arm64") || !strcmp(arch, "arm")) {
+       } else if (!strcmp(arch, NORM_ARM64) || !strcmp(arch, NORM_ARM)) {
                if (dso_type == DSO__TYPE_64BIT)
                        ops = arm64_unwind_libunwind_ops;
        }
-- 
2.5.5

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