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-rw-r--r--tools/lib/lk/Makefile35
-rw-r--r--tools/lib/lk/debugfs.c101
-rw-r--r--tools/lib/lk/debugfs.h29
-rw-r--r--tools/lib/traceevent/Makefile2
-rw-r--r--tools/lib/traceevent/event-parse.c49
-rw-r--r--tools/lib/traceevent/event-parse.h3
-rw-r--r--tools/lib/traceevent/event-utils.h3
-rw-r--r--tools/lib/traceevent/parse-filter.c3
-rw-r--r--tools/lib/traceevent/parse-utils.c19
-rw-r--r--tools/lib/traceevent/trace-seq.c3
10 files changed, 232 insertions, 15 deletions
diff --git a/tools/lib/lk/Makefile b/tools/lib/lk/Makefile
new file mode 100644
index 00000000000..926cbf3efc7
--- /dev/null
+++ b/tools/lib/lk/Makefile
@@ -0,0 +1,35 @@
+include ../../scripts/Makefile.include
+
+# guard against environment variables
+LIB_H=
+LIB_OBJS=
+
+LIB_H += debugfs.h
+
+LIB_OBJS += $(OUTPUT)debugfs.o
+
+LIBFILE = liblk.a
+
+CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
+EXTLIBS = -lpthread -lrt -lelf -lm
+ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
+ALL_LDFLAGS = $(LDFLAGS)
+
+RM = rm -f
+
+$(LIBFILE): $(LIB_OBJS)
+ $(QUIET_AR)$(RM) $@ && $(AR) rcs $(OUTPUT)$@ $(LIB_OBJS)
+
+$(LIB_OBJS): $(LIB_H)
+
+$(OUTPUT)%.o: %.c
+ $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
+$(OUTPUT)%.s: %.c
+ $(QUIET_CC)$(CC) -S $(ALL_CFLAGS) $<
+$(OUTPUT)%.o: %.S
+ $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
+
+clean:
+ $(RM) $(LIB_OBJS) $(LIBFILE)
+
+.PHONY: clean
diff --git a/tools/lib/lk/debugfs.c b/tools/lib/lk/debugfs.c
new file mode 100644
index 00000000000..099e7cd022e
--- /dev/null
+++ b/tools/lib/lk/debugfs.c
@@ -0,0 +1,101 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <sys/vfs.h>
+#include <sys/mount.h>
+#include <linux/magic.h>
+#include <linux/kernel.h>
+
+#include "debugfs.h"
+
+char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug";
+
+static const char * const debugfs_known_mountpoints[] = {
+ "/sys/kernel/debug/",
+ "/debug/",
+ 0,
+};
+
+static bool debugfs_found;
+
+/* find the path to the mounted debugfs */
+const char *debugfs_find_mountpoint(void)
+{
+ const char * const *ptr;
+ char type[100];
+ FILE *fp;
+
+ if (debugfs_found)
+ return (const char *)debugfs_mountpoint;
+
+ ptr = debugfs_known_mountpoints;
+ while (*ptr) {
+ if (debugfs_valid_mountpoint(*ptr) == 0) {
+ debugfs_found = true;
+ strcpy(debugfs_mountpoint, *ptr);
+ return debugfs_mountpoint;
+ }
+ ptr++;
+ }
+
+ /* give up and parse /proc/mounts */
+ fp = fopen("/proc/mounts", "r");
+ if (fp == NULL)
+ return NULL;
+
+ while (fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
+ debugfs_mountpoint, type) == 2) {
+ if (strcmp(type, "debugfs") == 0)
+ break;
+ }
+ fclose(fp);
+
+ if (strcmp(type, "debugfs") != 0)
+ return NULL;
+
+ debugfs_found = true;
+
+ return debugfs_mountpoint;
+}
+
+/* verify that a mountpoint is actually a debugfs instance */
+
+int debugfs_valid_mountpoint(const char *debugfs)
+{
+ struct statfs st_fs;
+
+ if (statfs(debugfs, &st_fs) < 0)
+ return -ENOENT;
+ else if (st_fs.f_type != (long) DEBUGFS_MAGIC)
+ return -ENOENT;
+
+ return 0;
+}
+
+/* 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 = "/sys/kernel/debug";
+ }
+
+ 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;
+}
diff --git a/tools/lib/lk/debugfs.h b/tools/lib/lk/debugfs.h
new file mode 100644
index 00000000000..935c59bdb44
--- /dev/null
+++ b/tools/lib/lk/debugfs.h
@@ -0,0 +1,29 @@
+#ifndef __LK_DEBUGFS_H__
+#define __LK_DEBUGFS_H__
+
+#define _STR(x) #x
+#define STR(x) _STR(x)
+
+/*
+ * On most systems <limits.h> would have given us this, but not on some systems
+ * (e.g. GNU/Hurd).
+ */
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
+#ifndef DEBUGFS_MAGIC
+#define DEBUGFS_MAGIC 0x64626720
+#endif
+
+#ifndef PERF_DEBUGFS_ENVIRONMENT
+#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
+#endif
+
+const char *debugfs_find_mountpoint(void);
+int debugfs_valid_mountpoint(const char *debugfs);
+char *debugfs_mount(const char *mountpoint);
+
+extern char debugfs_mountpoint[];
+
+#endif /* __LK_DEBUGFS_H__ */
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index a20e3203343..0b0a90787db 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -122,7 +122,7 @@ export Q VERBOSE
EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
-INCLUDES = -I. -I/usr/local/include $(CONFIG_INCLUDES)
+INCLUDES = -I. $(CONFIG_INCLUDES)
# Set compile option CFLAGS if not set elsewhere
CFLAGS ?= -g -Wall
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 5a824e355d0..82b0606dcb8 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -13,8 +13,7 @@
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
@@ -1224,6 +1223,34 @@ static int field_is_long(struct format_field *field)
return 0;
}
+static unsigned int type_size(const char *name)
+{
+ /* This covers all FIELD_IS_STRING types. */
+ static struct {
+ const char *type;
+ unsigned int size;
+ } table[] = {
+ { "u8", 1 },
+ { "u16", 2 },
+ { "u32", 4 },
+ { "u64", 8 },
+ { "s8", 1 },
+ { "s16", 2 },
+ { "s32", 4 },
+ { "s64", 8 },
+ { "char", 1 },
+ { },
+ };
+ int i;
+
+ for (i = 0; table[i].type; i++) {
+ if (!strcmp(table[i].type, name))
+ return table[i].size;
+ }
+
+ return 0;
+}
+
static int event_read_fields(struct event_format *event, struct format_field **fields)
{
struct format_field *field = NULL;
@@ -1233,6 +1260,8 @@ static int event_read_fields(struct event_format *event, struct format_field **f
int count = 0;
do {
+ unsigned int size_dynamic = 0;
+
type = read_token(&token);
if (type == EVENT_NEWLINE) {
free_token(token);
@@ -1391,6 +1420,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
field->type = new_type;
strcat(field->type, " ");
strcat(field->type, field->name);
+ size_dynamic = type_size(field->name);
free_token(field->name);
strcat(field->type, brackets);
field->name = token;
@@ -1463,7 +1493,8 @@ static int event_read_fields(struct event_format *event, struct format_field **f
if (read_expect_type(EVENT_ITEM, &token))
goto fail;
- /* add signed type */
+ if (strtoul(token, NULL, 0))
+ field->flags |= FIELD_IS_SIGNED;
free_token(token);
if (read_expected(EVENT_OP, ";") < 0)
@@ -1478,10 +1509,14 @@ static int event_read_fields(struct event_format *event, struct format_field **f
if (field->flags & FIELD_IS_ARRAY) {
if (field->arraylen)
field->elementsize = field->size / field->arraylen;
+ else if (field->flags & FIELD_IS_DYNAMIC)
+ field->elementsize = size_dynamic;
else if (field->flags & FIELD_IS_STRING)
field->elementsize = 1;
- else
- field->elementsize = event->pevent->long_size;
+ else if (field->flags & FIELD_IS_LONG)
+ field->elementsize = event->pevent ?
+ event->pevent->long_size :
+ sizeof(long);
} else
field->elementsize = field->size;
@@ -1785,6 +1820,8 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
strcmp(token, "/") == 0 ||
strcmp(token, "<") == 0 ||
strcmp(token, ">") == 0 ||
+ strcmp(token, "<=") == 0 ||
+ strcmp(token, ">=") == 0 ||
strcmp(token, "==") == 0 ||
strcmp(token, "!=") == 0) {
@@ -2481,7 +2518,7 @@ process_dynamic_array(struct event_format *event, struct print_arg *arg, char **
free_token(token);
arg = alloc_arg();
- if (!field) {
+ if (!arg) {
do_warning("%s: not enough memory!", __func__);
*tok = NULL;
return EVENT_ERROR;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 24a4bbabc5d..7be7e89533e 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -13,8 +13,7 @@
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
diff --git a/tools/lib/traceevent/event-utils.h b/tools/lib/traceevent/event-utils.h
index bc075006966..e76c9acb92c 100644
--- a/tools/lib/traceevent/event-utils.h
+++ b/tools/lib/traceevent/event-utils.h
@@ -13,8 +13,7 @@
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 5ea4326ad11..2500e75583f 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -13,8 +13,7 @@
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
diff --git a/tools/lib/traceevent/parse-utils.c b/tools/lib/traceevent/parse-utils.c
index f023a133abb..bba701cf10e 100644
--- a/tools/lib/traceevent/parse-utils.c
+++ b/tools/lib/traceevent/parse-utils.c
@@ -1,3 +1,22 @@
+/*
+ * Copyright (C) 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License (not later!)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
diff --git a/tools/lib/traceevent/trace-seq.c b/tools/lib/traceevent/trace-seq.c
index b1ccc923e8a..a57db805136 100644
--- a/tools/lib/traceevent/trace-seq.c
+++ b/tools/lib/traceevent/trace-seq.c
@@ -13,8 +13,7 @@
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-06-03 00:10:21 +0000