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1#include <stdio.h>
2#include <sys/utsname.h>
3#include "common.h"
4#include "../util/debug.h"
5
6const char *const arm_triplets[] = {
7 "arm-eabi-",
8 "arm-linux-androideabi-",
9 "arm-unknown-linux-",
10 "arm-unknown-linux-gnu-",
11 "arm-unknown-linux-gnueabi-",
12 NULL
13};
14
15const char *const arm64_triplets[] = {
16 "aarch64-linux-android-",
17 NULL
18};
19
20const char *const powerpc_triplets[] = {
21 "powerpc-unknown-linux-gnu-",
22 "powerpc64-unknown-linux-gnu-",
23 NULL
24};
25
26const char *const s390_triplets[] = {
27 "s390-ibm-linux-",
28 NULL
29};
30
31const char *const sh_triplets[] = {
32 "sh-unknown-linux-gnu-",
33 "sh64-unknown-linux-gnu-",
34 NULL
35};
36
37const char *const sparc_triplets[] = {
38 "sparc-unknown-linux-gnu-",
39 "sparc64-unknown-linux-gnu-",
40 NULL
41};
42
43const char *const x86_triplets[] = {
44 "x86_64-pc-linux-gnu-",
45 "x86_64-unknown-linux-gnu-",
46 "i686-pc-linux-gnu-",
47 "i586-pc-linux-gnu-",
48 "i486-pc-linux-gnu-",
49 "i386-pc-linux-gnu-",
50 "i686-linux-android-",
51 "i686-android-linux-",
52 NULL
53};
54
55const char *const mips_triplets[] = {
56 "mips-unknown-linux-gnu-",
57 "mipsel-linux-android-",
58 NULL
59};
60
61static bool lookup_path(char *name)
62{
63 bool found = false;
64 char *path, *tmp = NULL;
65 char buf[PATH_MAX];
66 char *env = getenv("PATH");
67
68 if (!env)
69 return false;
70
71 env = strdup(env);
72 if (!env)
73 return false;
74
75 path = strtok_r(env, ":", &tmp);
76 while (path) {
77 scnprintf(buf, sizeof(buf), "%s/%s", path, name);
78 if (access(buf, F_OK) == 0) {
79 found = true;
80 break;
81 }
82 path = strtok_r(NULL, ":", &tmp);
83 }
84 free(env);
85 return found;
86}
87
88static int lookup_triplets(const char *const *triplets, const char *name)
89{
90 int i;
91 char buf[PATH_MAX];
92
93 for (i = 0; triplets[i] != NULL; i++) {
94 scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name);
95 if (lookup_path(buf))
96 return i;
97 }
98 return -1;
99}
100
101/*
102 * Return architecture name in a normalized form.
103 * The conversion logic comes from the Makefile.
104 */
105static const char *normalize_arch(char *arch)
106{
107 if (!strcmp(arch, "x86_64"))
108 return "x86";
109 if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
110 return "x86";
111 if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
112 return "sparc";
113 if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64"))
114 return "arm64";
115 if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
116 return "arm";
117 if (!strncmp(arch, "s390", 4))
118 return "s390";
119 if (!strncmp(arch, "parisc", 6))
120 return "parisc";
121 if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
122 return "powerpc";
123 if (!strncmp(arch, "mips", 4))
124 return "mips";
125 if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
126 return "sh";
127
128 return arch;
129}
130
131static int perf_env__lookup_binutils_path(struct perf_env *env,
132 const char *name, const char **path)
133{
134 int idx;
135 const char *arch, *cross_env;
136 struct utsname uts;
137 const char *const *path_list;
138 char *buf = NULL;
139
140 arch = normalize_arch(env->arch);
141
142 if (uname(&uts) < 0)
143 goto out;
144
145 /*
146 * We don't need to try to find objdump path for native system.
147 * Just use default binutils path (e.g.: "objdump").
148 */
149 if (!strcmp(normalize_arch(uts.machine), arch))
150 goto out;
151
152 cross_env = getenv("CROSS_COMPILE");
153 if (cross_env) {
154 if (asprintf(&buf, "%s%s", cross_env, name) < 0)
155 goto out_error;
156 if (buf[0] == '/') {
157 if (access(buf, F_OK) == 0)
158 goto out;
159 goto out_error;
160 }
161 if (lookup_path(buf))
162 goto out;
163 zfree(&buf);
164 }
165
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;
182 else {
183 ui__error("binutils for %s not supported.\n", arch);
184 goto out_error;
185 }
186
187 idx = lookup_triplets(path_list, name);
188 if (idx < 0) {
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",
192 name, arch, name);
193 goto out_error;
194 }
195
196 if (asprintf(&buf, "%s%s", path_list[idx], name) < 0)
197 goto out_error;
198
199out:
200 *path = buf;
201 return 0;
202out_error:
203 free(buf);
204 *path = NULL;
205 return -1;
206}
207
208int perf_env__lookup_objdump(struct perf_env *env)
209{
210 /*
211 * For live mode, env->arch will be NULL and we can use
212 * the native objdump tool.
213 */
214 if (env->arch == NULL)
215 return 0;
216
217 return perf_env__lookup_binutils_path(env, "objdump", &objdump_path);
218}
1#include <stdio.h>
2#include <sys/utsname.h>
3#include "common.h"
4#include "../util/debug.h"
5
6const char *const arm_triplets[] = {
7 "arm-eabi-",
8 "arm-linux-androideabi-",
9 "arm-unknown-linux-",
10 "arm-unknown-linux-gnu-",
11 "arm-unknown-linux-gnueabi-",
12 NULL
13};
14
15const char *const powerpc_triplets[] = {
16 "powerpc-unknown-linux-gnu-",
17 "powerpc64-unknown-linux-gnu-",
18 NULL
19};
20
21const char *const s390_triplets[] = {
22 "s390-ibm-linux-",
23 NULL
24};
25
26const char *const sh_triplets[] = {
27 "sh-unknown-linux-gnu-",
28 "sh64-unknown-linux-gnu-",
29 NULL
30};
31
32const char *const sparc_triplets[] = {
33 "sparc-unknown-linux-gnu-",
34 "sparc64-unknown-linux-gnu-",
35 NULL
36};
37
38const char *const x86_triplets[] = {
39 "x86_64-pc-linux-gnu-",
40 "x86_64-unknown-linux-gnu-",
41 "i686-pc-linux-gnu-",
42 "i586-pc-linux-gnu-",
43 "i486-pc-linux-gnu-",
44 "i386-pc-linux-gnu-",
45 "i686-linux-android-",
46 "i686-android-linux-",
47 NULL
48};
49
50const char *const mips_triplets[] = {
51 "mips-unknown-linux-gnu-",
52 "mipsel-linux-android-",
53 NULL
54};
55
56static bool lookup_path(char *name)
57{
58 bool found = false;
59 char *path, *tmp;
60 char buf[PATH_MAX];
61 char *env = getenv("PATH");
62
63 if (!env)
64 return false;
65
66 env = strdup(env);
67 if (!env)
68 return false;
69
70 path = strtok_r(env, ":", &tmp);
71 while (path) {
72 scnprintf(buf, sizeof(buf), "%s/%s", path, name);
73 if (access(buf, F_OK) == 0) {
74 found = true;
75 break;
76 }
77 path = strtok_r(NULL, ":", &tmp);
78 }
79 free(env);
80 return found;
81}
82
83static int lookup_triplets(const char *const *triplets, const char *name)
84{
85 int i;
86 char buf[PATH_MAX];
87
88 for (i = 0; triplets[i] != NULL; i++) {
89 scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name);
90 if (lookup_path(buf))
91 return i;
92 }
93 return -1;
94}
95
96/*
97 * Return architecture name in a normalized form.
98 * The conversion logic comes from the Makefile.
99 */
100static const char *normalize_arch(char *arch)
101{
102 if (!strcmp(arch, "x86_64"))
103 return "x86";
104 if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
105 return "x86";
106 if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
107 return "sparc";
108 if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
109 return "arm";
110 if (!strncmp(arch, "s390", 4))
111 return "s390";
112 if (!strncmp(arch, "parisc", 6))
113 return "parisc";
114 if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
115 return "powerpc";
116 if (!strncmp(arch, "mips", 4))
117 return "mips";
118 if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
119 return "sh";
120
121 return arch;
122}
123
124static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
125 const char *name,
126 const char **path)
127{
128 int idx;
129 const char *arch, *cross_env;
130 struct utsname uts;
131 const char *const *path_list;
132 char *buf = NULL;
133
134 arch = normalize_arch(env->arch);
135
136 if (uname(&uts) < 0)
137 goto out;
138
139 /*
140 * We don't need to try to find objdump path for native system.
141 * Just use default binutils path (e.g.: "objdump").
142 */
143 if (!strcmp(normalize_arch(uts.machine), arch))
144 goto out;
145
146 cross_env = getenv("CROSS_COMPILE");
147 if (cross_env) {
148 if (asprintf(&buf, "%s%s", cross_env, name) < 0)
149 goto out_error;
150 if (buf[0] == '/') {
151 if (access(buf, F_OK) == 0)
152 goto out;
153 goto out_error;
154 }
155 if (lookup_path(buf))
156 goto out;
157 zfree(&buf);
158 }
159
160 if (!strcmp(arch, "arm"))
161 path_list = arm_triplets;
162 else if (!strcmp(arch, "powerpc"))
163 path_list = powerpc_triplets;
164 else if (!strcmp(arch, "sh"))
165 path_list = sh_triplets;
166 else if (!strcmp(arch, "s390"))
167 path_list = s390_triplets;
168 else if (!strcmp(arch, "sparc"))
169 path_list = sparc_triplets;
170 else if (!strcmp(arch, "x86"))
171 path_list = x86_triplets;
172 else if (!strcmp(arch, "mips"))
173 path_list = mips_triplets;
174 else {
175 ui__error("binutils for %s not supported.\n", arch);
176 goto out_error;
177 }
178
179 idx = lookup_triplets(path_list, name);
180 if (idx < 0) {
181 ui__error("Please install %s for %s.\n"
182 "You can add it to PATH, set CROSS_COMPILE or "
183 "override the default using --%s.\n",
184 name, arch, name);
185 goto out_error;
186 }
187
188 if (asprintf(&buf, "%s%s", path_list[idx], name) < 0)
189 goto out_error;
190
191out:
192 *path = buf;
193 return 0;
194out_error:
195 free(buf);
196 *path = NULL;
197 return -1;
198}
199
200int perf_session_env__lookup_objdump(struct perf_session_env *env)
201{
202 /*
203 * For live mode, env->arch will be NULL and we can use
204 * the native objdump tool.
205 */
206 if (env->arch == NULL)
207 return 0;
208
209 return perf_session_env__lookup_binutils_path(env, "objdump",
210 &objdump_path);
211}