This source file includes following definitions.
- lookup_path
- lookup_triplets
- perf_env__lookup_binutils_path
- perf_env__lookup_objdump
- perf_env__single_address_space
1
2 #include <limits.h>
3 #include <stdio.h>
4 #include <stdlib.h>
5 #include <string.h>
6 #include <unistd.h>
7 #include "common.h"
8 #include "../util/env.h"
9 #include "../util/debug.h"
10 #include <linux/zalloc.h>
11
12 const char *const arc_triplets[] = {
13 "arc-linux-",
14 "arc-snps-linux-uclibc-",
15 "arc-snps-linux-gnu-",
16 NULL
17 };
18
19 const char *const arm_triplets[] = {
20 "arm-eabi-",
21 "arm-linux-androideabi-",
22 "arm-unknown-linux-",
23 "arm-unknown-linux-gnu-",
24 "arm-unknown-linux-gnueabi-",
25 "arm-linux-gnu-",
26 "arm-linux-gnueabihf-",
27 "arm-none-eabi-",
28 NULL
29 };
30
31 const char *const arm64_triplets[] = {
32 "aarch64-linux-android-",
33 "aarch64-linux-gnu-",
34 NULL
35 };
36
37 const char *const powerpc_triplets[] = {
38 "powerpc-unknown-linux-gnu-",
39 "powerpc-linux-gnu-",
40 "powerpc64-unknown-linux-gnu-",
41 "powerpc64-linux-gnu-",
42 "powerpc64le-linux-gnu-",
43 NULL
44 };
45
46 const char *const s390_triplets[] = {
47 "s390-ibm-linux-",
48 "s390x-linux-gnu-",
49 NULL
50 };
51
52 const char *const sh_triplets[] = {
53 "sh-unknown-linux-gnu-",
54 "sh64-unknown-linux-gnu-",
55 "sh-linux-gnu-",
56 "sh64-linux-gnu-",
57 NULL
58 };
59
60 const char *const sparc_triplets[] = {
61 "sparc-unknown-linux-gnu-",
62 "sparc64-unknown-linux-gnu-",
63 "sparc64-linux-gnu-",
64 NULL
65 };
66
67 const char *const x86_triplets[] = {
68 "x86_64-pc-linux-gnu-",
69 "x86_64-unknown-linux-gnu-",
70 "i686-pc-linux-gnu-",
71 "i586-pc-linux-gnu-",
72 "i486-pc-linux-gnu-",
73 "i386-pc-linux-gnu-",
74 "i686-linux-android-",
75 "i686-android-linux-",
76 "x86_64-linux-gnu-",
77 "i586-linux-gnu-",
78 NULL
79 };
80
81 const char *const mips_triplets[] = {
82 "mips-unknown-linux-gnu-",
83 "mipsel-linux-android-",
84 "mips-linux-gnu-",
85 "mips64-linux-gnu-",
86 "mips64el-linux-gnuabi64-",
87 "mips64-linux-gnuabi64-",
88 "mipsel-linux-gnu-",
89 NULL
90 };
91
92 static bool lookup_path(char *name)
93 {
94 bool found = false;
95 char *path, *tmp = NULL;
96 char buf[PATH_MAX];
97 char *env = getenv("PATH");
98
99 if (!env)
100 return false;
101
102 env = strdup(env);
103 if (!env)
104 return false;
105
106 path = strtok_r(env, ":", &tmp);
107 while (path) {
108 scnprintf(buf, sizeof(buf), "%s/%s", path, name);
109 if (access(buf, F_OK) == 0) {
110 found = true;
111 break;
112 }
113 path = strtok_r(NULL, ":", &tmp);
114 }
115 free(env);
116 return found;
117 }
118
119 static int lookup_triplets(const char *const *triplets, const char *name)
120 {
121 int i;
122 char buf[PATH_MAX];
123
124 for (i = 0; triplets[i] != NULL; i++) {
125 scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name);
126 if (lookup_path(buf))
127 return i;
128 }
129 return -1;
130 }
131
132 static int perf_env__lookup_binutils_path(struct perf_env *env,
133 const char *name, const char **path)
134 {
135 int idx;
136 const char *arch = perf_env__arch(env), *cross_env;
137 const char *const *path_list;
138 char *buf = NULL;
139
140
141
142
143
144 if (!strcmp(perf_env__arch(NULL), arch))
145 goto out;
146
147 cross_env = getenv("CROSS_COMPILE");
148 if (cross_env) {
149 if (asprintf(&buf, "%s%s", cross_env, name) < 0)
150 goto out_error;
151 if (buf[0] == '/') {
152 if (access(buf, F_OK) == 0)
153 goto out;
154 goto out_error;
155 }
156 if (lookup_path(buf))
157 goto out;
158 zfree(&buf);
159 }
160
161 if (!strcmp(arch, "arc"))
162 path_list = arc_triplets;
163 else if (!strcmp(arch, "arm"))
164 path_list = arm_triplets;
165 else if (!strcmp(arch, "arm64"))
166 path_list = arm64_triplets;
167 else if (!strcmp(arch, "powerpc"))
168 path_list = powerpc_triplets;
169 else if (!strcmp(arch, "sh"))
170 path_list = sh_triplets;
171 else if (!strcmp(arch, "s390"))
172 path_list = s390_triplets;
173 else if (!strcmp(arch, "sparc"))
174 path_list = sparc_triplets;
175 else if (!strcmp(arch, "x86"))
176 path_list = x86_triplets;
177 else if (!strcmp(arch, "mips"))
178 path_list = mips_triplets;
179 else {
180 ui__error("binutils for %s not supported.\n", arch);
181 goto out_error;
182 }
183
184 idx = lookup_triplets(path_list, name);
185 if (idx < 0) {
186 ui__error("Please install %s for %s.\n"
187 "You can add it to PATH, set CROSS_COMPILE or "
188 "override the default using --%s.\n",
189 name, arch, name);
190 goto out_error;
191 }
192
193 if (asprintf(&buf, "%s%s", path_list[idx], name) < 0)
194 goto out_error;
195
196 out:
197 *path = buf;
198 return 0;
199 out_error:
200 free(buf);
201 *path = NULL;
202 return -1;
203 }
204
205 int perf_env__lookup_objdump(struct perf_env *env, const char **path)
206 {
207
208
209
210
211 if (env->arch == NULL)
212 return 0;
213
214 return perf_env__lookup_binutils_path(env, "objdump", path);
215 }
216
217
218
219
220
221
222 bool perf_env__single_address_space(struct perf_env *env)
223 {
224 return strcmp(perf_env__arch(env), "sparc");
225 }