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