[perf/core PATCH v2 1/4] perf-buildid-cache: Remove unneeded debugdir parameters

Masami Hiramatsu
2015-02-10T09:21:11Z

Functions related to buildid-cache subcommand use debugdir
parameters for passing buildid cache directory path. However
all callers just pass buildid_dir global variable. Moreover,
other functions which refer buildid cache use buildid_dir
directly.
This removes unneeded debugdir parameters from those functions
and use buildid_dir if needed.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
---
tools/perf/builtin-buildid-cache.c | 37 +++++++++++++-----------------
tools/perf/util/build-id.c | 44 ++++++++++++++++--------------------
tools/perf/util/build-id.h | 4 ++-
3 files changed, 38 insertions(+), 47 deletions(-)

diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 50e6b66..d929d95 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -125,8 +125,7 @@ static int build_id_cache__kcore_existing(const char *from_dir, char *to_dir,
return ret;
}

-static int build_id_cache__add_kcore(const char *filename, const char *debugdir,
- bool force)
+static int build_id_cache__add_kcore(const char *filename, bool force)
{
char dir[32], sbuildid[BUILD_ID_SIZE * 2 + 1];
char from_dir[PATH_MAX], to_dir[PATH_MAX];
@@ -143,7 +142,7 @@ static int build_id_cache__add_kcore(const char *filename, const char *debugdir,
return -1;

scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
- debugdir, sbuildid);
+ buildid_dir, sbuildid);

if (!force &&
!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
@@ -155,7 +154,7 @@ static int build_id_cache__add_kcore(const char *filename, const char *debugdir,
return -1;

scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
- debugdir, sbuildid, dir);
+ buildid_dir, sbuildid, dir);

if (mkdir_p(to_dir, 0755))
return -1;
@@ -183,7 +182,7 @@ static int build_id_cache__add_kcore(const char *filename, const char *debugdir,
return 0;
}

-static int build_id_cache__add_file(const char *filename, const char *debugdir)
+static int build_id_cache__add_file(const char *filename)
{
char sbuild_id[BUILD_ID_SIZE * 2 + 1];
u8 build_id[BUILD_ID_SIZE];
@@ -195,7 +194,7 @@ static int build_id_cache__add_file(const char *filename, const char *debugdir)
}

build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
- err = build_id_cache__add_s(sbuild_id, debugdir, filename,
+ err = build_id_cache__add_s(sbuild_id, filename,
false, false);
if (verbose)
pr_info("Adding %s %s: %s\n", sbuild_id, filename,
@@ -203,8 +202,7 @@ static int build_id_cache__add_file(const char *filename, const char *debugdir)
return err;
}

-static int build_id_cache__remove_file(const char *filename,
- const char *debugdir)
+static int build_id_cache__remove_file(const char *filename)
{
u8 build_id[BUILD_ID_SIZE];
char sbuild_id[BUILD_ID_SIZE * 2 + 1];
@@ -217,7 +215,7 @@ static int build_id_cache__remove_file(const char *filename,
}

build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
- err = build_id_cache__remove_s(sbuild_id, debugdir);
+ err = build_id_cache__remove_s(sbuild_id);
if (verbose)
pr_info("Removing %s %s: %s\n", sbuild_id, filename,
err ? "FAIL" : "Ok");
@@ -252,8 +250,7 @@ static int build_id_cache__fprintf_missing(struct perf_session *session, FILE *f
return 0;
}

-static int build_id_cache__update_file(const char *filename,
- const char *debugdir)
+static int build_id_cache__update_file(const char *filename)
{
u8 build_id[BUILD_ID_SIZE];
char sbuild_id[BUILD_ID_SIZE * 2 + 1];
@@ -266,11 +263,10 @@ static int build_id_cache__update_file(const char *filename,
}

build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
- err = build_id_cache__remove_s(sbuild_id, debugdir);
- if (!err) {
- err = build_id_cache__add_s(sbuild_id, debugdir, filename,
- false, false);
- }
+ err = build_id_cache__remove_s(sbuild_id);
+ if (!err)
+ err = build_id_cache__add_s(sbuild_id, filename, false, false);
+
if (verbose)
pr_info("Updating %s %s: %s\n", sbuild_id, filename,
err ? "FAIL" : "Ok");
@@ -338,7 +334,7 @@ int cmd_buildid_cache(int argc, const char **argv,
list = strlist__new(true, add_name_list_str);
if (list) {
strlist__for_each(pos, list)
- if (build_id_cache__add_file(pos->s, buildid_dir)) {
+ if (build_id_cache__add_file(pos->s)) {
if (errno == EEXIST) {
pr_debug("%s already in the cache\n",
pos->s);
@@ -356,7 +352,7 @@ int cmd_buildid_cache(int argc, const char **argv,
list = strlist__new(true, remove_name_list_str);
if (list) {
strlist__for_each(pos, list)
- if (build_id_cache__remove_file(pos->s, buildid_dir)) {
+ if (build_id_cache__remove_file(pos->s)) {
if (errno == ENOENT) {
pr_debug("%s wasn't in the cache\n",
pos->s);
@@ -377,7 +373,7 @@ int cmd_buildid_cache(int argc, const char **argv,
list = strlist__new(true, update_name_list_str);
if (list) {
strlist__for_each(pos, list)
- if (build_id_cache__update_file(pos->s, buildid_dir)) {
+ if (build_id_cache__update_file(pos->s)) {
if (errno == ENOENT) {
pr_debug("%s wasn't in the cache\n",
pos->s);
@@ -391,8 +387,7 @@ int cmd_buildid_cache(int argc, const char **argv,
}
}

- if (kcore_filename &&
- build_id_cache__add_kcore(kcore_filename, buildid_dir, force))
+ if (kcore_filename && build_id_cache__add_kcore(kcore_filename, force))
pr_warning("Couldn't add %s\n", kcore_filename);

out:
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 0c72680..9f764f6 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -259,8 +259,8 @@ void disable_buildid_cache(void)
no_buildid_cache = true;
}

-int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
- const char *name, bool is_kallsyms, bool is_vdso)
+int build_id_cache__add_s(const char *sbuild_id, const char *name,
+ bool is_kallsyms, bool is_vdso)
{
const size_t size = PATH_MAX;
char *realname, *filename = zalloc(size),
@@ -282,7 +282,7 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
goto out_free;

len = scnprintf(filename, size, "%s%s%s",
- debugdir, slash ? "/" : "",
+ buildid_dir, slash ? "/" : "",
is_vdso ? DSO__NAME_VDSO : realname);
if (mkdir_p(filename, 0755))
goto out_free;
@@ -298,13 +298,13 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
}

len = scnprintf(linkname, size, "%s/.build-id/%.2s",
- debugdir, sbuild_id);
+ buildid_dir, sbuild_id);

if (access(linkname, X_OK) && mkdir_p(linkname, 0755))
goto out_free;

snprintf(linkname + len, size - len, "/%s", sbuild_id + 2);
- targetname = filename + strlen(debugdir) - 5;
+ targetname = filename + strlen(buildid_dir) - 5;
memcpy(targetname, "../..", 5);

if (symlink(targetname, linkname) == 0)
@@ -318,18 +318,17 @@ out_free:
}

static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
- const char *name, const char *debugdir,
- bool is_kallsyms, bool is_vdso)
+ const char *name, bool is_kallsyms,
+ bool is_vdso)
{
char sbuild_id[BUILD_ID_SIZE * 2 + 1];

build_id__sprintf(build_id, build_id_size, sbuild_id);

- return build_id_cache__add_s(sbuild_id, debugdir, name,
- is_kallsyms, is_vdso);
+ return build_id_cache__add_s(sbuild_id, name, is_kallsyms, is_vdso);
}

-int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir)
+int build_id_cache__remove_s(const char *sbuild_id)
{
const size_t size = PATH_MAX;
char *filename = zalloc(size),
@@ -340,7 +339,7 @@ int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir)
goto out_free;

snprintf(linkname, size, "%s/.build-id/%.2s/%s",
- debugdir, sbuild_id, sbuild_id + 2);
+ buildid_dir, sbuild_id, sbuild_id + 2);

if (access(linkname, F_OK))
goto out_free;
@@ -355,7 +354,7 @@ int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir)
* Since the link is relative, we must make it absolute:
*/
snprintf(linkname, size, "%s/.build-id/%.2s/%s",
- debugdir, sbuild_id, filename);
+ buildid_dir, sbuild_id, filename);

if (unlink(linkname))
goto out_free;
@@ -367,8 +366,7 @@ out_free:
return err;
}

-static int dso__cache_build_id(struct dso *dso, struct machine *machine,
- const char *debugdir)
+static int dso__cache_build_id(struct dso *dso, struct machine *machine)
{
bool is_kallsyms = dso->kernel && dso->long_name[0] != '/';
bool is_vdso = dso__is_vdso(dso);
@@ -381,28 +379,26 @@ static int dso__cache_build_id(struct dso *dso, struct machine *machine,
name = nm;
}
return build_id_cache__add_b(dso->build_id, sizeof(dso->build_id), name,
- debugdir, is_kallsyms, is_vdso);
+ is_kallsyms, is_vdso);
}

static int __dsos__cache_build_ids(struct list_head *head,
- struct machine *machine, const char *debugdir)
+ struct machine *machine)
{
struct dso *pos;
int err = 0;

dsos__for_each_with_build_id(pos, head)
- if (dso__cache_build_id(pos, machine, debugdir))
+ if (dso__cache_build_id(pos, machine))
err = -1;

return err;
}

-static int machine__cache_build_ids(struct machine *machine, const char *debugdir)
+static int machine__cache_build_ids(struct machine *machine)
{
- int ret = __dsos__cache_build_ids(&machine->kernel_dsos.head, machine,
- debugdir);
- ret |= __dsos__cache_build_ids(&machine->user_dsos.head, machine,
- debugdir);
+ int ret = __dsos__cache_build_ids(&machine->kernel_dsos.head, machine);
+ ret |= __dsos__cache_build_ids(&machine->user_dsos.head, machine);
return ret;
}

@@ -417,11 +413,11 @@ int perf_session__cache_build_ids(struct perf_session *session)
if (mkdir(buildid_dir, 0755) != 0 && errno != EEXIST)
return -1;

- ret = machine__cache_build_ids(&session->machines.host, buildid_dir);
+ ret = machine__cache_build_ids(&session->machines.host);

for (nd = rb_first(&session->machines.guests); nd; nd = rb_next(nd)) {
struct machine *pos = rb_entry(nd, struct machine, rb_node);
- ret |= machine__cache_build_ids(pos, buildid_dir);
+ ret |= machine__cache_build_ids(pos);
}
return ret ? -1 : 0;
}
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index 8236319..31b3c63 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -22,9 +22,9 @@ bool perf_session__read_build_ids(struct perf_session *session, bool with_hits);
int perf_session__write_buildid_table(struct perf_session *session, int fd);
int perf_session__cache_build_ids(struct perf_session *session);

-int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
+int build_id_cache__add_s(const char *sbuild_id,
const char *name, bool is_kallsyms, bool is_vdso);
-int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
+int build_id_cache__remove_s(const char *sbuild_id);
void disable_buildid_cache(void);

#endif