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authorIngo Molnar <mingo@kernel.org>2015-09-15 08:50:59 +0200
committerIngo Molnar <mingo@kernel.org>2015-09-15 08:50:59 +0200
commit9059b284caecb628fac826c2c5cc8ee85708eec1 (patch)
treeb3b772a434395bb16fe9b8b4156a46f0508eb250 /tools/lib/api/fs/debugfs.c
parentperf/core: Drop PERF_EVENT_TXN (diff)
parentperf test: Add entry for hists socket filter (diff)
downloadlinux-9059b284caecb628fac826c2c5cc8ee85708eec1.tar.gz
linux-9059b284caecb628fac826c2c5cc8ee85708eec1.zip
Merge tag 'perf-core-for-mingo-2' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Add 'socket' sort entry, to sort by the processor socket in 'perf top' and 'perf report'. (Kan Liang) - Introduce --socket-filter to 'perf report', for filtering by processor socket. (Kan Liang) - Add new "Zoom into Processor Socket" operation in the perf hists browser, used in 'perf top' and 'perf report'. (Kan Liang) - Fix the 'CPU' hist browser column width calculation. (Arnaldo Carvalho de Melo) Infrastructure changes: - 'perf test' fixes for the object code reading entry. (Jan Stancek) - Add processor socket and cpu topology 'perf test' entries. (Kan Liang) - Introduce more sysfs__read_TYPE() helpers. (Arnaldo Carvalho de Melo) - Group cpu information reading functions in tools/lib/api/cpu.[ch], starting with cpu__get_max_freq() from a patchkit by Kan Liang. (Arnaldo Carvalho de Melo) - Retrieve the MSR PMU type from a perf.data file header and store it in struct perf_env. (Kan Liang) - Add tools/include into CTAGS file list. (Jiri Olsa) - Add iterator function for perf tests. (Matt Fleming) - Switch to tracing_patch interface. (Jiri Olsa) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/lib/api/fs/debugfs.c')
-rw-r--r--tools/lib/api/fs/debugfs.c77
1 files changed, 0 insertions, 77 deletions
diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
deleted file mode 100644
index c707cfb32782..000000000000
--- a/tools/lib/api/fs/debugfs.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#define _GNU_SOURCE
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <sys/vfs.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mount.h>
-#include <linux/kernel.h>
-
-#include "debugfs.h"
-#include "tracefs.h"
-
-#ifndef DEBUGFS_DEFAULT_PATH
-#define DEBUGFS_DEFAULT_PATH "/sys/kernel/debug"
-#endif
-
-char debugfs_mountpoint[PATH_MAX + 1] = DEBUGFS_DEFAULT_PATH;
-
-static const char * const debugfs_known_mountpoints[] = {
- DEBUGFS_DEFAULT_PATH,
- "/debug",
- 0,
-};
-
-static bool debugfs_found;
-
-bool debugfs_configured(void)
-{
- return debugfs_find_mountpoint() != NULL;
-}
-
-/* find the path to the mounted debugfs */
-const char *debugfs_find_mountpoint(void)
-{
- const char *ret;
-
- if (debugfs_found)
- return (const char *)debugfs_mountpoint;
-
- ret = find_mountpoint("debugfs", (long) DEBUGFS_MAGIC,
- debugfs_mountpoint, PATH_MAX + 1,
- debugfs_known_mountpoints);
- if (ret)
- debugfs_found = true;
-
- return ret;
-}
-
-/* mount the debugfs somewhere if it's not mounted */
-char *debugfs_mount(const char *mountpoint)
-{
- /* see if it's already mounted */
- if (debugfs_find_mountpoint())
- goto out;
-
- /* if not mounted and no argument */
- if (mountpoint == NULL) {
- /* see if environment variable set */
- mountpoint = getenv(PERF_DEBUGFS_ENVIRONMENT);
- /* if no environment variable, use default */
- if (mountpoint == NULL)
- mountpoint = DEBUGFS_DEFAULT_PATH;
- }
-
- if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0)
- return NULL;
-
- /* save the mountpoint */
- debugfs_found = true;
- strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint));
-out:
- return debugfs_mountpoint;
-}