2 #include <sys/utsname.h>
4 #include "../util/debug.h"
6 const char *const arm_triplets[] = {
8 "arm-linux-androideabi-",
10 "arm-unknown-linux-gnu-",
11 "arm-unknown-linux-gnueabi-",
15 const char *const arm64_triplets[] = {
16 "aarch64-linux-android-",
20 const char *const powerpc_triplets[] = {
21 "powerpc-unknown-linux-gnu-",
22 "powerpc64-unknown-linux-gnu-",
26 const char *const s390_triplets[] = {
31 const char *const sh_triplets[] = {
32 "sh-unknown-linux-gnu-",
33 "sh64-unknown-linux-gnu-",
37 const char *const sparc_triplets[] = {
38 "sparc-unknown-linux-gnu-",
39 "sparc64-unknown-linux-gnu-",
43 const char *const x86_triplets[] = {
44 "x86_64-pc-linux-gnu-",
45 "x86_64-unknown-linux-gnu-",
50 "i686-linux-android-",
51 "i686-android-linux-",
55 const char *const mips_triplets[] = {
56 "mips-unknown-linux-gnu-",
57 "mipsel-linux-android-",
61 static bool lookup_path(char *name)
64 char *path, *tmp = NULL;
66 char *env = getenv("PATH");
75 path = strtok_r(env, ":", &tmp);
77 scnprintf(buf, sizeof(buf), "%s/%s", path, name);
78 if (access(buf, F_OK) == 0) {
82 path = strtok_r(NULL, ":", &tmp);
88 static int lookup_triplets(const char *const *triplets, const char *name)
93 for (i = 0; triplets[i] != NULL; i++) {
94 scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name);
102 * Return architecture name in a normalized form.
103 * The conversion logic comes from the Makefile.
105 static const char *normalize_arch(char *arch)
107 if (!strcmp(arch, "x86_64"))
109 if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
111 if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
113 if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64"))
115 if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
117 if (!strncmp(arch, "s390", 4))
119 if (!strncmp(arch, "parisc", 6))
121 if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
123 if (!strncmp(arch, "mips", 4))
125 if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
131 static int perf_env__lookup_binutils_path(struct perf_env *env,
132 const char *name, const char **path)
135 const char *arch, *cross_env;
137 const char *const *path_list;
140 arch = normalize_arch(env->arch);
146 * We don't need to try to find objdump path for native system.
147 * Just use default binutils path (e.g.: "objdump").
149 if (!strcmp(normalize_arch(uts.machine), arch))
152 cross_env = getenv("CROSS_COMPILE");
154 if (asprintf(&buf, "%s%s", cross_env, name) < 0)
157 if (access(buf, F_OK) == 0)
161 if (lookup_path(buf))
166 if (!strcmp(arch, "arm"))
167 path_list = arm_triplets;
168 else if (!strcmp(arch, "arm64"))
169 path_list = arm64_triplets;
170 else if (!strcmp(arch, "powerpc"))
171 path_list = powerpc_triplets;
172 else if (!strcmp(arch, "sh"))
173 path_list = sh_triplets;
174 else if (!strcmp(arch, "s390"))
175 path_list = s390_triplets;
176 else if (!strcmp(arch, "sparc"))
177 path_list = sparc_triplets;
178 else if (!strcmp(arch, "x86"))
179 path_list = x86_triplets;
180 else if (!strcmp(arch, "mips"))
181 path_list = mips_triplets;
183 ui__error("binutils for %s not supported.\n", arch);
187 idx = lookup_triplets(path_list, name);
189 ui__error("Please install %s for %s.\n"
190 "You can add it to PATH, set CROSS_COMPILE or "
191 "override the default using --%s.\n",
196 if (asprintf(&buf, "%s%s", path_list[idx], name) < 0)
208 int perf_env__lookup_objdump(struct perf_env *env)
211 * For live mode, env->arch will be NULL and we can use
212 * the native objdump tool.
214 if (env->arch == NULL)
217 return perf_env__lookup_binutils_path(env, "objdump", &objdump_path);