| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1335958638-5160-8-git-send-email-jolsa@redhat.com>
Date: Wed, 2 May 2012 13:37:08 +0200
From: Jiri Olsa <jolsa@...hat.com>
To: acme@...hat.com, a.p.zijlstra@...llo.nl, mingo@...e.hu,
paulus@...ba.org, cjashfor@...ux.vnet.ibm.com, fweisbec@...il.com
Cc: eranian@...gle.com, gorcunov@...nvz.org, tzanussi@...il.com,
mhiramat@...hat.com, robert.richter@....com, fche@...hat.com,
linux-kernel@...r.kernel.org, masami.hiramatsu.pt@...achi.com,
drepper@...il.com, asharma@...com, Jiri Olsa <jolsa@...hat.com>
Subject: [PATCH 07/17] perf, tool: Factor DSO symtab types to generic binary types
Adding interface to access DSOs so it could be used
from another place.
New DSO binary type is added - making current SYMTAB__*
types more general:
DSO_BINARY_TYPE__* = SYMTAB__*
Folowing function is added to return path based on the specified
binary type:
dso__binary_type_file
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
tools/perf/builtin-top.c | 2 +-
tools/perf/util/annotate.c | 2 +-
tools/perf/util/symbol.c | 181 +++++++++++++++++++++++++++-----------------
tools/perf/util/symbol.h | 32 ++++----
4 files changed, 129 insertions(+), 88 deletions(-)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 8ef59f8..10184f6 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -125,7 +125,7 @@ static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
/*
* We can't annotate with just /proc/kallsyms
*/
- if (map->dso->symtab_type == SYMTAB__KALLSYMS) {
+ if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS) {
pr_err("Can't annotate %s: No vmlinux file was found in the "
"path\n", sym->name);
sleep(1);
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 5eb3412..bf41cf8 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -500,7 +500,7 @@ fallback:
free_filename = false;
}
- if (dso->symtab_type == SYMTAB__KALLSYMS) {
+ if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS) {
char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
char *build_id_msg = NULL;
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index ab9867b..fdc4e70 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -48,6 +48,22 @@ struct symbol_conf symbol_conf = {
.symfs = "",
};
+static enum dso_binary_type binary_type_symtab[] = {
+ DSO_BINARY_TYPE__KALLSYMS,
+ DSO_BINARY_TYPE__GUEST_KALLSYMS,
+ DSO_BINARY_TYPE__JAVA_JIT,
+ DSO_BINARY_TYPE__BUILD_ID_CACHE,
+ DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
+ DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
+ DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
+ DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
+ DSO_BINARY_TYPE__GUEST_KMODULE,
+ DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
+ DSO_BINARY_TYPE__NOT_FOUND,
+};
+
+#define DSO_BINARY_TYPE__SYMTAB_CNT sizeof(binary_type_symtab)
+
int dso__name_len(const struct dso *dso)
{
if (!dso)
@@ -318,7 +334,7 @@ struct dso *dso__new(const char *name)
dso__set_short_name(dso, dso->name);
for (i = 0; i < MAP__NR_TYPES; ++i)
dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
- dso->symtab_type = SYMTAB__NOT_FOUND;
+ dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND;
dso->loaded = 0;
dso->sorted_by_name = 0;
dso->has_build_id = 0;
@@ -805,9 +821,9 @@ int dso__load_kallsyms(struct dso *dso, const char *filename,
symbols__fixup_end(&dso->symbols[map->type]);
if (dso->kernel == DSO_TYPE_GUEST_KERNEL)
- dso->symtab_type = SYMTAB__GUEST_KALLSYMS;
+ dso->symtab_type = DSO_BINARY_TYPE__GUEST_KALLSYMS;
else
- dso->symtab_type = SYMTAB__KALLSYMS;
+ dso->symtab_type = DSO_BINARY_TYPE__KALLSYMS;
return dso__split_kallsyms(dso, map, filter);
}
@@ -1562,31 +1578,96 @@ out:
char dso__symtab_origin(const struct dso *dso)
{
static const char origin[] = {
- [SYMTAB__KALLSYMS] = 'k',
- [SYMTAB__JAVA_JIT] = 'j',
- [SYMTAB__BUILD_ID_CACHE] = 'B',
- [SYMTAB__FEDORA_DEBUGINFO] = 'f',
- [SYMTAB__UBUNTU_DEBUGINFO] = 'u',
- [SYMTAB__BUILDID_DEBUGINFO] = 'b',
- [SYMTAB__SYSTEM_PATH_DSO] = 'd',
- [SYMTAB__SYSTEM_PATH_KMODULE] = 'K',
- [SYMTAB__GUEST_KALLSYMS] = 'g',
- [SYMTAB__GUEST_KMODULE] = 'G',
+ [DSO_BINARY_TYPE__KALLSYMS] = 'k',
+ [DSO_BINARY_TYPE__JAVA_JIT] = 'j',
+ [DSO_BINARY_TYPE__BUILD_ID_CACHE] = 'B',
+ [DSO_BINARY_TYPE__FEDORA_DEBUGINFO] = 'f',
+ [DSO_BINARY_TYPE__UBUNTU_DEBUGINFO] = 'u',
+ [DSO_BINARY_TYPE__BUILDID_DEBUGINFO] = 'b',
+ [DSO_BINARY_TYPE__SYSTEM_PATH_DSO] = 'd',
+ [DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE] = 'K',
+ [DSO_BINARY_TYPE__GUEST_KALLSYMS] = 'g',
+ [DSO_BINARY_TYPE__GUEST_KMODULE] = 'G',
};
- if (dso == NULL || dso->symtab_type == SYMTAB__NOT_FOUND)
+ if (dso == NULL || dso->symtab_type == DSO_BINARY_TYPE__NOT_FOUND)
return '!';
return origin[dso->symtab_type];
}
+int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
+ char *root_dir, char *file, size_t size)
+{
+ char build_id_hex[BUILD_ID_SIZE * 2 + 1];
+ int ret = 0;
+
+ switch (type) {
+ case DSO_BINARY_TYPE__BUILD_ID_CACHE:
+ /* skip the locally configured cache if a symfs is given */
+ if (symbol_conf.symfs[0] ||
+ (dso__build_id_filename(dso, file, size) == NULL))
+ ret = -1;
+ break;
+
+ case DSO_BINARY_TYPE__FEDORA_DEBUGINFO:
+ snprintf(file, size, "%s/usr/lib/debug%s.debug",
+ symbol_conf.symfs, dso->long_name);
+ break;
+
+ case DSO_BINARY_TYPE__UBUNTU_DEBUGINFO:
+ snprintf(file, size, "%s/usr/lib/debug%s",
+ symbol_conf.symfs, dso->long_name);
+ break;
+
+ case DSO_BINARY_TYPE__BUILDID_DEBUGINFO:
+ if (!dso->has_build_id) {
+ ret = -1;
+ break;
+ }
+
+ build_id__sprintf(dso->build_id,
+ sizeof(dso->build_id),
+ build_id_hex);
+ snprintf(file, size,
+ "%s/usr/lib/debug/.build-id/%.2s/%s.debug",
+ symbol_conf.symfs, build_id_hex, build_id_hex + 2);
+ break;
+
+ case DSO_BINARY_TYPE__SYSTEM_PATH_DSO:
+ snprintf(file, size, "%s%s",
+ symbol_conf.symfs, dso->long_name);
+ break;
+
+ case DSO_BINARY_TYPE__GUEST_KMODULE:
+ snprintf(file, size, "%s%s%s", symbol_conf.symfs,
+ root_dir, dso->long_name);
+ break;
+
+ case DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE:
+ snprintf(file, size, "%s%s", symbol_conf.symfs,
+ dso->long_name);
+ break;
+
+ default:
+ case DSO_BINARY_TYPE__KALLSYMS:
+ case DSO_BINARY_TYPE__GUEST_KALLSYMS:
+ case DSO_BINARY_TYPE__JAVA_JIT:
+ case DSO_BINARY_TYPE__NOT_FOUND:
+ ret = -1;
+ break;
+ }
+
+ return ret;
+}
+
int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter)
{
- int size = PATH_MAX;
char *name;
int ret = -1;
int fd;
+ u_int i;
struct machine *machine;
- const char *root_dir;
+ char *root_dir = (char *) "";
int want_symtab;
dso__set_loaded(dso, map->type);
@@ -1601,7 +1682,7 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter)
else
machine = NULL;
- name = malloc(size);
+ name = malloc(PATH_MAX);
if (!name)
return -1;
@@ -1620,69 +1701,27 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter)
}
ret = dso__load_perf_map(dso, map, filter);
- dso->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT :
- SYMTAB__NOT_FOUND;
+ dso->symtab_type = ret > 0 ? DSO_BINARY_TYPE__JAVA_JIT :
+ DSO_BINARY_TYPE__NOT_FOUND;
return ret;
}
+ if (machine)
+ root_dir = machine->root_dir;
+
/* Iterate over candidate debug images.
* On the first pass, only load images if they have a full symtab.
* Failing that, do a second pass where we accept .dynsym also
*/
want_symtab = 1;
restart:
- for (dso->symtab_type = SYMTAB__BUILD_ID_CACHE;
- dso->symtab_type != SYMTAB__NOT_FOUND;
- dso->symtab_type++) {
- switch (dso->symtab_type) {
- case SYMTAB__BUILD_ID_CACHE:
- /* skip the locally configured cache if a symfs is given */
- if (symbol_conf.symfs[0] ||
- (dso__build_id_filename(dso, name, size) == NULL)) {
- continue;
- }
- break;
- case SYMTAB__FEDORA_DEBUGINFO:
- snprintf(name, size, "%s/usr/lib/debug%s.debug",
- symbol_conf.symfs, dso->long_name);
- break;
- case SYMTAB__UBUNTU_DEBUGINFO:
- snprintf(name, size, "%s/usr/lib/debug%s",
- symbol_conf.symfs, dso->long_name);
- break;
- case SYMTAB__BUILDID_DEBUGINFO: {
- char build_id_hex[BUILD_ID_SIZE * 2 + 1];
-
- if (!dso->has_build_id)
- continue;
+ for (i = 0; i < DSO_BINARY_TYPE__SYMTAB_CNT; i++) {
- build_id__sprintf(dso->build_id,
- sizeof(dso->build_id),
- build_id_hex);
- snprintf(name, size,
- "%s/usr/lib/debug/.build-id/%.2s/%s.debug",
- symbol_conf.symfs, build_id_hex, build_id_hex + 2);
- }
- break;
- case SYMTAB__SYSTEM_PATH_DSO:
- snprintf(name, size, "%s%s",
- symbol_conf.symfs, dso->long_name);
- break;
- case SYMTAB__GUEST_KMODULE:
- if (map->groups && machine)
- root_dir = machine->root_dir;
- else
- root_dir = "";
- snprintf(name, size, "%s%s%s", symbol_conf.symfs,
- root_dir, dso->long_name);
- break;
+ dso->symtab_type = binary_type_symtab[i];
- case SYMTAB__SYSTEM_PATH_KMODULE:
- snprintf(name, size, "%s%s", symbol_conf.symfs,
- dso->long_name);
- break;
- default:;
- }
+ if (dso__binary_type_file(dso, dso->symtab_type,
+ root_dir, name, PATH_MAX))
+ continue;
/* Name is now the name of the next image to try */
fd = open(name, O_RDONLY);
@@ -1899,9 +1938,9 @@ struct map *machine__new_module(struct machine *machine, u64 start,
return NULL;
if (machine__is_host(machine))
- dso->symtab_type = SYMTAB__SYSTEM_PATH_KMODULE;
+ dso->symtab_type = DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE;
else
- dso->symtab_type = SYMTAB__GUEST_KMODULE;
+ dso->symtab_type = DSO_BINARY_TYPE__GUEST_KMODULE;
map_groups__insert(&machine->kmaps, map);
return map;
}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 1f00388..a86e9de 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -154,6 +154,20 @@ struct addr_location {
s32 cpu;
};
+enum dso_binary_type {
+ DSO_BINARY_TYPE__KALLSYMS = 0,
+ DSO_BINARY_TYPE__GUEST_KALLSYMS,
+ DSO_BINARY_TYPE__JAVA_JIT,
+ DSO_BINARY_TYPE__BUILD_ID_CACHE,
+ DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
+ DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
+ DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
+ DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
+ DSO_BINARY_TYPE__GUEST_KMODULE,
+ DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
+ DSO_BINARY_TYPE__NOT_FOUND,
+};
+
enum dso_kernel_type {
DSO_TYPE_USER = 0,
DSO_TYPE_KERNEL,
@@ -165,13 +179,13 @@ struct dso {
struct rb_root symbols[MAP__NR_TYPES];
struct rb_root symbol_names[MAP__NR_TYPES];
enum dso_kernel_type kernel;
+ enum dso_binary_type symtab_type;
u8 adjust_symbols:1;
u8 has_build_id:1;
u8 hit:1;
u8 annotate_warned:1;
u8 sname_alloc:1;
u8 lname_alloc:1;
- unsigned char symtab_type;
u8 sorted_by_name;
u8 loaded;
u8 build_id[BUILD_ID_SIZE];
@@ -223,20 +237,6 @@ size_t dso__fprintf_symbols_by_name(struct dso *dso,
enum map_type type, FILE *fp);
size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
-enum symtab_type {
- SYMTAB__KALLSYMS = 0,
- SYMTAB__GUEST_KALLSYMS,
- SYMTAB__JAVA_JIT,
- SYMTAB__BUILD_ID_CACHE,
- SYMTAB__FEDORA_DEBUGINFO,
- SYMTAB__UBUNTU_DEBUGINFO,
- SYMTAB__BUILDID_DEBUGINFO,
- SYMTAB__SYSTEM_PATH_DSO,
- SYMTAB__GUEST_KMODULE,
- SYMTAB__SYSTEM_PATH_KMODULE,
- SYMTAB__NOT_FOUND,
-};
-
char dso__symtab_origin(const struct dso *dso);
void dso__set_long_name(struct dso *dso, char *name);
void dso__set_build_id(struct dso *dso, void *build_id);
@@ -272,4 +272,6 @@ bool symbol_type__is_a(char symbol_type, enum map_type map_type);
size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
+int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
+ char *root_dir, char *file, size_t size);
#endif /* __PERF_SYMBOL */
--
1.7.7.6
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists