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-rw-r--r--tools/perf/tests/vmlinux-kallsyms.c61
1 files changed, 34 insertions, 27 deletions
diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index e63abab7d5a1..a5082331f246 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -8,14 +8,6 @@
8#include "debug.h" 8#include "debug.h"
9#include "machine.h" 9#include "machine.h"
10 10
11static int vmlinux_matches_kallsyms_filter(struct map *map __maybe_unused,
12 struct symbol *sym)
13{
14 bool *visited = symbol__priv(sym);
15 *visited = true;
16 return 0;
17}
18
19#define UM(x) kallsyms_map->unmap_ip(kallsyms_map, (x)) 11#define UM(x) kallsyms_map->unmap_ip(kallsyms_map, (x))
20 12
21int test__vmlinux_matches_kallsyms(int subtest __maybe_unused) 13int test__vmlinux_matches_kallsyms(int subtest __maybe_unused)
@@ -28,6 +20,7 @@ int test__vmlinux_matches_kallsyms(int subtest __maybe_unused)
28 enum map_type type = MAP__FUNCTION; 20 enum map_type type = MAP__FUNCTION;
29 struct maps *maps = &vmlinux.kmaps.maps[type]; 21 struct maps *maps = &vmlinux.kmaps.maps[type];
30 u64 mem_start, mem_end; 22 u64 mem_start, mem_end;
23 bool header_printed;
31 24
32 /* 25 /*
33 * Step 1: 26 * Step 1:
@@ -61,7 +54,7 @@ int test__vmlinux_matches_kallsyms(int subtest __maybe_unused)
61 * be compacted against the list of modules found in the "vmlinux" 54 * be compacted against the list of modules found in the "vmlinux"
62 * code and with the one got from /proc/modules from the "kallsyms" code. 55 * code and with the one got from /proc/modules from the "kallsyms" code.
63 */ 56 */
64 if (__machine__load_kallsyms(&kallsyms, "/proc/kallsyms", type, true, NULL) <= 0) { 57 if (__machine__load_kallsyms(&kallsyms, "/proc/kallsyms", type, true) <= 0) {
65 pr_debug("dso__load_kallsyms "); 58 pr_debug("dso__load_kallsyms ");
66 goto out; 59 goto out;
67 } 60 }
@@ -99,8 +92,7 @@ int test__vmlinux_matches_kallsyms(int subtest __maybe_unused)
99 * maps__reloc_vmlinux will notice and set proper ->[un]map_ip routines 92 * maps__reloc_vmlinux will notice and set proper ->[un]map_ip routines
100 * to fixup the symbols. 93 * to fixup the symbols.
101 */ 94 */
102 if (machine__load_vmlinux_path(&vmlinux, type, 95 if (machine__load_vmlinux_path(&vmlinux, type) <= 0) {
103 vmlinux_matches_kallsyms_filter) <= 0) {
104 pr_debug("Couldn't find a vmlinux that matches the kernel running on this machine, skipping test\n"); 96 pr_debug("Couldn't find a vmlinux that matches the kernel running on this machine, skipping test\n");
105 err = TEST_SKIP; 97 err = TEST_SKIP;
106 goto out; 98 goto out;
@@ -126,7 +118,7 @@ int test__vmlinux_matches_kallsyms(int subtest __maybe_unused)
126 mem_end = vmlinux_map->unmap_ip(vmlinux_map, sym->end); 118 mem_end = vmlinux_map->unmap_ip(vmlinux_map, sym->end);
127 119
128 first_pair = machine__find_kernel_symbol(&kallsyms, type, 120 first_pair = machine__find_kernel_symbol(&kallsyms, type,
129 mem_start, NULL, NULL); 121 mem_start, NULL);
130 pair = first_pair; 122 pair = first_pair;
131 123
132 if (pair && UM(pair->start) == mem_start) { 124 if (pair && UM(pair->start) == mem_start) {
@@ -143,7 +135,7 @@ next_pair:
143 */ 135 */
144 s64 skew = mem_end - UM(pair->end); 136 s64 skew = mem_end - UM(pair->end);
145 if (llabs(skew) >= page_size) 137 if (llabs(skew) >= page_size)
146 pr_debug("%#" PRIx64 ": diff end addr for %s v: %#" PRIx64 " k: %#" PRIx64 "\n", 138 pr_debug("WARN: %#" PRIx64 ": diff end addr for %s v: %#" PRIx64 " k: %#" PRIx64 "\n",
147 mem_start, sym->name, mem_end, 139 mem_start, sym->name, mem_end,
148 UM(pair->end)); 140 UM(pair->end));
149 141
@@ -154,22 +146,23 @@ next_pair:
154 * kallsyms. 146 * kallsyms.
155 */ 147 */
156 continue; 148 continue;
157
158 } else { 149 } else {
159 pair = machine__find_kernel_symbol_by_name(&kallsyms, type, sym->name, NULL, NULL); 150 pair = machine__find_kernel_symbol_by_name(&kallsyms, type, sym->name, NULL);
160 if (pair) { 151 if (pair) {
161 if (UM(pair->start) == mem_start) 152 if (UM(pair->start) == mem_start)
162 goto next_pair; 153 goto next_pair;
163 154
164 pr_debug("%#" PRIx64 ": diff name v: %s k: %s\n", 155 pr_debug("WARN: %#" PRIx64 ": diff name v: %s k: %s\n",
165 mem_start, sym->name, pair->name); 156 mem_start, sym->name, pair->name);
166 } else { 157 } else {
167 pr_debug("%#" PRIx64 ": diff name v: %s k: %s\n", 158 pr_debug("WARN: %#" PRIx64 ": diff name v: %s k: %s\n",
168 mem_start, sym->name, first_pair->name); 159 mem_start, sym->name, first_pair->name);
169 } 160 }
161
162 continue;
170 } 163 }
171 } else 164 } else
172 pr_debug("%#" PRIx64 ": %s not on kallsyms\n", 165 pr_debug("ERR : %#" PRIx64 ": %s not on kallsyms\n",
173 mem_start, sym->name); 166 mem_start, sym->name);
174 167
175 err = -1; 168 err = -1;
@@ -178,7 +171,7 @@ next_pair:
178 if (!verbose) 171 if (!verbose)
179 goto out; 172 goto out;
180 173
181 pr_info("Maps only in vmlinux:\n"); 174 header_printed = false;
182 175
183 for (map = maps__first(maps); map; map = map__next(map)) { 176 for (map = maps__first(maps); map; map = map__next(map)) {
184 struct map * 177 struct map *
@@ -192,13 +185,18 @@ next_pair:
192 (map->dso->kernel ? 185 (map->dso->kernel ?
193 map->dso->short_name : 186 map->dso->short_name :
194 map->dso->name)); 187 map->dso->name));
195 if (pair) 188 if (pair) {
196 pair->priv = 1; 189 pair->priv = 1;
197 else 190 } else {
191 if (!header_printed) {
192 pr_info("WARN: Maps only in vmlinux:\n");
193 header_printed = true;
194 }
198 map__fprintf(map, stderr); 195 map__fprintf(map, stderr);
196 }
199 } 197 }
200 198
201 pr_info("Maps in vmlinux with a different name in kallsyms:\n"); 199 header_printed = false;
202 200
203 for (map = maps__first(maps); map; map = map__next(map)) { 201 for (map = maps__first(maps); map; map = map__next(map)) {
204 struct map *pair; 202 struct map *pair;
@@ -211,24 +209,33 @@ next_pair:
211 continue; 209 continue;
212 210
213 if (pair->start == mem_start) { 211 if (pair->start == mem_start) {
214 pair->priv = 1; 212 if (!header_printed) {
215 pr_info(" %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as", 213 pr_info("WARN: Maps in vmlinux with a different name in kallsyms:\n");
214 header_printed = true;
215 }
216
217 pr_info("WARN: %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as",
216 map->start, map->end, map->pgoff, map->dso->name); 218 map->start, map->end, map->pgoff, map->dso->name);
217 if (mem_end != pair->end) 219 if (mem_end != pair->end)
218 pr_info(":\n*%" PRIx64 "-%" PRIx64 " %" PRIx64, 220 pr_info(":\nWARN: *%" PRIx64 "-%" PRIx64 " %" PRIx64,
219 pair->start, pair->end, pair->pgoff); 221 pair->start, pair->end, pair->pgoff);
220 pr_info(" %s\n", pair->dso->name); 222 pr_info(" %s\n", pair->dso->name);
221 pair->priv = 1; 223 pair->priv = 1;
222 } 224 }
223 } 225 }
224 226
225 pr_info("Maps only in kallsyms:\n"); 227 header_printed = false;
226 228
227 maps = &kallsyms.kmaps.maps[type]; 229 maps = &kallsyms.kmaps.maps[type];
228 230
229 for (map = maps__first(maps); map; map = map__next(map)) { 231 for (map = maps__first(maps); map; map = map__next(map)) {
230 if (!map->priv) 232 if (!map->priv) {
233 if (!header_printed) {
234 pr_info("WARN: Maps only in kallsyms:\n");
235 header_printed = true;
236 }
231 map__fprintf(map, stderr); 237 map__fprintf(map, stderr);
238 }
232 } 239 }
233out: 240out:
234 machine__exit(&kallsyms); 241 machine__exit(&kallsyms);