2 #include <sys/utsname.h>
4 #include "../util/util.h"
5 #include "../util/debug.h"
7 const char *const arm_triplets[] = {
9 "arm-linux-androideabi-",
11 "arm-unknown-linux-gnu-",
12 "arm-unknown-linux-gnueabi-",
14 "arm-linux-gnueabihf-",
19 const char *const arm64_triplets[] = {
20 "aarch64-linux-android-",
25 const char *const powerpc_triplets[] = {
26 "powerpc-unknown-linux-gnu-",
27 "powerpc64-unknown-linux-gnu-",
28 "powerpc64-linux-gnu-",
29 "powerpc64le-linux-gnu-",
33 const char *const s390_triplets[] = {
39 const char *const sh_triplets[] = {
40 "sh-unknown-linux-gnu-",
41 "sh64-unknown-linux-gnu-",
47 const char *const sparc_triplets[] = {
48 "sparc-unknown-linux-gnu-",
49 "sparc64-unknown-linux-gnu-",
54 const char *const x86_triplets[] = {
55 "x86_64-pc-linux-gnu-",
56 "x86_64-unknown-linux-gnu-",
61 "i686-linux-android-",
62 "i686-android-linux-",
68 const char *const mips_triplets[] = {
69 "mips-unknown-linux-gnu-",
70 "mipsel-linux-android-",
73 "mips64el-linux-gnuabi64-",
74 "mips64-linux-gnuabi64-",
79 static bool lookup_path(char *name)
82 char *path, *tmp = NULL;
84 char *env = getenv("PATH");
93 path = strtok_r(env, ":", &tmp);
95 scnprintf(buf, sizeof(buf), "%s/%s", path, name);
96 if (access(buf, F_OK) == 0) {
100 path = strtok_r(NULL, ":", &tmp);
106 static int lookup_triplets(const char *const *triplets, const char *name)
111 for (i = 0; triplets[i] != NULL; i++) {
112 scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name);
113 if (lookup_path(buf))
120 * Return architecture name in a normalized form.
121 * The conversion logic comes from the Makefile.
123 const char *normalize_arch(char *arch)
125 if (!strcmp(arch, "x86_64"))
127 if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
129 if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
131 if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64"))
133 if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
135 if (!strncmp(arch, "s390", 4))
137 if (!strncmp(arch, "parisc", 6))
139 if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
141 if (!strncmp(arch, "mips", 4))
143 if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
149 static int perf_env__lookup_binutils_path(struct perf_env *env,
150 const char *name, const char **path)
153 const char *arch, *cross_env;
155 const char *const *path_list;
158 arch = normalize_arch(env->arch);
164 * We don't need to try to find objdump path for native system.
165 * Just use default binutils path (e.g.: "objdump").
167 if (!strcmp(normalize_arch(uts.machine), arch))
170 cross_env = getenv("CROSS_COMPILE");
172 if (asprintf(&buf, "%s%s", cross_env, name) < 0)
175 if (access(buf, F_OK) == 0)
179 if (lookup_path(buf))
184 if (!strcmp(arch, "arm"))
185 path_list = arm_triplets;
186 else if (!strcmp(arch, "arm64"))
187 path_list = arm64_triplets;
188 else if (!strcmp(arch, "powerpc"))
189 path_list = powerpc_triplets;
190 else if (!strcmp(arch, "sh"))
191 path_list = sh_triplets;
192 else if (!strcmp(arch, "s390"))
193 path_list = s390_triplets;
194 else if (!strcmp(arch, "sparc"))
195 path_list = sparc_triplets;
196 else if (!strcmp(arch, "x86"))
197 path_list = x86_triplets;
198 else if (!strcmp(arch, "mips"))
199 path_list = mips_triplets;
201 ui__error("binutils for %s not supported.\n", arch);
205 idx = lookup_triplets(path_list, name);
207 ui__error("Please install %s for %s.\n"
208 "You can add it to PATH, set CROSS_COMPILE or "
209 "override the default using --%s.\n",
214 if (asprintf(&buf, "%s%s", path_list[idx], name) < 0)
226 int perf_env__lookup_objdump(struct perf_env *env)
229 * For live mode, env->arch will be NULL and we can use
230 * the native objdump tool.
232 if (env->arch == NULL)
235 return perf_env__lookup_binutils_path(env, "objdump", &objdump_path);