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-rw-r--r--tools/perf/tests/vmlinux-kallsyms.c181
1 files changed, 98 insertions, 83 deletions
diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index 1078a93b01..822f893e67 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -112,18 +112,92 @@ static bool is_ignored_symbol(const char *name, char type)
return false;
}
+struct test__vmlinux_matches_kallsyms_cb_args {
+ struct machine kallsyms;
+ struct map *vmlinux_map;
+ bool header_printed;
+};
+
+static int test__vmlinux_matches_kallsyms_cb1(struct map *map, void *data)
+{
+ struct test__vmlinux_matches_kallsyms_cb_args *args = data;
+ struct dso *dso = map__dso(map);
+ /*
+ * If it is the kernel, kallsyms is always "[kernel.kallsyms]", while
+ * the kernel will have the path for the vmlinux file being used, so use
+ * the short name, less descriptive but the same ("[kernel]" in both
+ * cases.
+ */
+ struct map *pair = maps__find_by_name(args->kallsyms.kmaps,
+ (dso->kernel ? dso->short_name : dso->name));
+
+ if (pair)
+ map__set_priv(pair, 1);
+ else {
+ if (!args->header_printed) {
+ pr_info("WARN: Maps only in vmlinux:\n");
+ args->header_printed = true;
+ }
+ map__fprintf(map, stderr);
+ }
+ return 0;
+}
+
+static int test__vmlinux_matches_kallsyms_cb2(struct map *map, void *data)
+{
+ struct test__vmlinux_matches_kallsyms_cb_args *args = data;
+ struct map *pair;
+ u64 mem_start = map__unmap_ip(args->vmlinux_map, map__start(map));
+ u64 mem_end = map__unmap_ip(args->vmlinux_map, map__end(map));
+
+ pair = maps__find(args->kallsyms.kmaps, mem_start);
+ if (pair == NULL || map__priv(pair))
+ return 0;
+
+ if (map__start(pair) == mem_start) {
+ struct dso *dso = map__dso(map);
+
+ if (!args->header_printed) {
+ pr_info("WARN: Maps in vmlinux with a different name in kallsyms:\n");
+ args->header_printed = true;
+ }
+
+ pr_info("WARN: %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as",
+ map__start(map), map__end(map), map__pgoff(map), dso->name);
+ if (mem_end != map__end(pair))
+ pr_info(":\nWARN: *%" PRIx64 "-%" PRIx64 " %" PRIx64,
+ map__start(pair), map__end(pair), map__pgoff(pair));
+ pr_info(" %s\n", dso->name);
+ map__set_priv(pair, 1);
+ }
+ return 0;
+}
+
+static int test__vmlinux_matches_kallsyms_cb3(struct map *map, void *data)
+{
+ struct test__vmlinux_matches_kallsyms_cb_args *args = data;
+
+ if (!map__priv(map)) {
+ if (!args->header_printed) {
+ pr_info("WARN: Maps only in kallsyms:\n");
+ args->header_printed = true;
+ }
+ map__fprintf(map, stderr);
+ }
+ return 0;
+}
+
static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
int err = TEST_FAIL;
struct rb_node *nd;
struct symbol *sym;
- struct map *kallsyms_map, *vmlinux_map;
- struct map_rb_node *rb_node;
- struct machine kallsyms, vmlinux;
+ struct map *kallsyms_map;
+ struct machine vmlinux;
struct maps *maps;
u64 mem_start, mem_end;
- bool header_printed;
+ struct test__vmlinux_matches_kallsyms_cb_args args;
/*
* Step 1:
@@ -131,7 +205,7 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
* Init the machines that will hold kernel, modules obtained from
* both vmlinux + .ko files and from /proc/kallsyms split by modules.
*/
- machine__init(&kallsyms, "", HOST_KERNEL_ID);
+ machine__init(&args.kallsyms, "", HOST_KERNEL_ID);
machine__init(&vmlinux, "", HOST_KERNEL_ID);
maps = machine__kernel_maps(&vmlinux);
@@ -143,7 +217,7 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
* load /proc/kallsyms. Also create the modules maps from /proc/modules
* and find the .ko files that match them in /lib/modules/`uname -r`/.
*/
- if (machine__create_kernel_maps(&kallsyms) < 0) {
+ if (machine__create_kernel_maps(&args.kallsyms) < 0) {
pr_debug("machine__create_kernel_maps failed");
err = TEST_SKIP;
goto out;
@@ -160,7 +234,7 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
* be compacted against the list of modules found in the "vmlinux"
* code and with the one got from /proc/modules from the "kallsyms" code.
*/
- if (machine__load_kallsyms(&kallsyms, "/proc/kallsyms") <= 0) {
+ if (machine__load_kallsyms(&args.kallsyms, "/proc/kallsyms") <= 0) {
pr_debug("machine__load_kallsyms failed");
err = TEST_SKIP;
goto out;
@@ -174,7 +248,7 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
* to see if the running kernel was relocated by checking if it has the
* same value in the vmlinux file we load.
*/
- kallsyms_map = machine__kernel_map(&kallsyms);
+ kallsyms_map = machine__kernel_map(&args.kallsyms);
/*
* Step 5:
@@ -186,7 +260,7 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
goto out;
}
- vmlinux_map = machine__kernel_map(&vmlinux);
+ args.vmlinux_map = machine__kernel_map(&vmlinux);
/*
* Step 6:
@@ -213,7 +287,7 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
* in the kallsyms dso. For the ones that are in both, check its names and
* end addresses too.
*/
- map__for_each_symbol(vmlinux_map, sym, nd) {
+ map__for_each_symbol(args.vmlinux_map, sym, nd) {
struct symbol *pair, *first_pair;
sym = rb_entry(nd, struct symbol, rb_node);
@@ -221,10 +295,10 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
if (sym->start == sym->end)
continue;
- mem_start = map__unmap_ip(vmlinux_map, sym->start);
- mem_end = map__unmap_ip(vmlinux_map, sym->end);
+ mem_start = map__unmap_ip(args.vmlinux_map, sym->start);
+ mem_end = map__unmap_ip(args.vmlinux_map, sym->end);
- first_pair = machine__find_kernel_symbol(&kallsyms, mem_start, NULL);
+ first_pair = machine__find_kernel_symbol(&args.kallsyms, mem_start, NULL);
pair = first_pair;
if (pair && UM(pair->start) == mem_start) {
@@ -253,7 +327,8 @@ next_pair:
*/
continue;
} else {
- pair = machine__find_kernel_symbol_by_name(&kallsyms, sym->name, NULL);
+ pair = machine__find_kernel_symbol_by_name(&args.kallsyms,
+ sym->name, NULL);
if (pair) {
if (UM(pair->start) == mem_start)
goto next_pair;
@@ -267,7 +342,7 @@ next_pair:
continue;
}
- } else if (mem_start == map__end(kallsyms.vmlinux_map)) {
+ } else if (mem_start == map__end(args.kallsyms.vmlinux_map)) {
/*
* Ignore aliases to _etext, i.e. to the end of the kernel text area,
* such as __indirect_thunk_end.
@@ -289,78 +364,18 @@ next_pair:
if (verbose <= 0)
goto out;
- header_printed = false;
-
- maps__for_each_entry(maps, rb_node) {
- struct map *map = rb_node->map;
- struct dso *dso = map__dso(map);
- /*
- * If it is the kernel, kallsyms is always "[kernel.kallsyms]", while
- * the kernel will have the path for the vmlinux file being used,
- * so use the short name, less descriptive but the same ("[kernel]" in
- * both cases.
- */
- struct map *pair = maps__find_by_name(kallsyms.kmaps, (dso->kernel ?
- dso->short_name :
- dso->name));
- if (pair) {
- map__set_priv(pair, 1);
- } else {
- if (!header_printed) {
- pr_info("WARN: Maps only in vmlinux:\n");
- header_printed = true;
- }
- map__fprintf(map, stderr);
- }
- }
-
- header_printed = false;
-
- maps__for_each_entry(maps, rb_node) {
- struct map *pair, *map = rb_node->map;
-
- mem_start = map__unmap_ip(vmlinux_map, map__start(map));
- mem_end = map__unmap_ip(vmlinux_map, map__end(map));
+ args.header_printed = false;
+ maps__for_each_map(maps, test__vmlinux_matches_kallsyms_cb1, &args);
- pair = maps__find(kallsyms.kmaps, mem_start);
- if (pair == NULL || map__priv(pair))
- continue;
-
- if (map__start(pair) == mem_start) {
- struct dso *dso = map__dso(map);
-
- if (!header_printed) {
- pr_info("WARN: Maps in vmlinux with a different name in kallsyms:\n");
- header_printed = true;
- }
-
- pr_info("WARN: %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as",
- map__start(map), map__end(map), map__pgoff(map), dso->name);
- if (mem_end != map__end(pair))
- pr_info(":\nWARN: *%" PRIx64 "-%" PRIx64 " %" PRIx64,
- map__start(pair), map__end(pair), map__pgoff(pair));
- pr_info(" %s\n", dso->name);
- map__set_priv(pair, 1);
- }
- }
-
- header_printed = false;
-
- maps = machine__kernel_maps(&kallsyms);
+ args.header_printed = false;
+ maps__for_each_map(maps, test__vmlinux_matches_kallsyms_cb2, &args);
- maps__for_each_entry(maps, rb_node) {
- struct map *map = rb_node->map;
+ args.header_printed = false;
+ maps = machine__kernel_maps(&args.kallsyms);
+ maps__for_each_map(maps, test__vmlinux_matches_kallsyms_cb3, &args);
- if (!map__priv(map)) {
- if (!header_printed) {
- pr_info("WARN: Maps only in kallsyms:\n");
- header_printed = true;
- }
- map__fprintf(map, stderr);
- }
- }
out:
- machine__exit(&kallsyms);
+ machine__exit(&args.kallsyms);
machine__exit(&vmlinux);
return err;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 01:08:28 +0000