@@ -28,10 +28,15 @@ FOPTS := -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \
-fasynchronous-unwind-tables -fstack-clash-protection
WOPTS := -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
+ifeq ($(CC),clang)
+ FOPTS := $(filter-out -ffat-lto-objects, $(FOPTS))
+ WOPTS := $(filter-out -Wno-maybe-uninitialized, $(WOPTS))
+endif
+
TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs)
CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS)
-LDFLAGS := -ggdb $(EXTRA_LDFLAGS)
+LDFLAGS := -flto=auto -ggdb $(EXTRA_LDFLAGS)
LIBS := $$($(PKG_CONFIG) --libs libtracefs)
SRC := $(wildcard src/*.c)
@@ -135,8 +135,7 @@ static void osnoise_hist_update_multiple(struct osnoise_tool *tool, int cpu,
if (params->output_divisor)
duration = duration / params->output_divisor;
- if (data->bucket_size)
- bucket = duration / data->bucket_size;
+ bucket = duration / data->bucket_size;
total_duration = duration * count;
@@ -480,7 +479,11 @@ static void osnoise_hist_usage(char *usage)
for (i = 0; msg[i]; i++)
fprintf(stderr, "%s\n", msg[i]);
- exit(1);
+
+ if (usage)
+ exit(EXIT_FAILURE);
+
+ exit(EXIT_SUCCESS);
}
/*
@@ -331,7 +331,11 @@ static void osnoise_top_usage(struct osnoise_top_params *params, char *usage)
for (i = 0; msg[i]; i++)
fprintf(stderr, "%s\n", msg[i]);
- exit(1);
+
+ if (usage)
+ exit(EXIT_FAILURE);
+
+ exit(EXIT_SUCCESS);
}
/*
@@ -178,8 +178,7 @@ timerlat_hist_update(struct osnoise_tool *tool, int cpu,
if (params->output_divisor)
latency = latency / params->output_divisor;
- if (data->bucket_size)
- bucket = latency / data->bucket_size;
+ bucket = latency / data->bucket_size;
if (!context) {
hist = data->hist[cpu].irq;
@@ -546,7 +545,11 @@ static void timerlat_hist_usage(char *usage)
for (i = 0; msg[i]; i++)
fprintf(stderr, "%s\n", msg[i]);
- exit(1);
+
+ if (usage)
+ exit(EXIT_FAILURE);
+
+ exit(EXIT_SUCCESS);
}
/*
@@ -375,7 +375,11 @@ static void timerlat_top_usage(char *usage)
for (i = 0; msg[i]; i++)
fprintf(stderr, "%s\n", msg[i]);
- exit(1);
+
+ if (usage)
+ exit(EXIT_FAILURE);
+
+ exit(EXIT_SUCCESS);
}
/*
@@ -238,12 +238,6 @@ static inline int sched_setattr(pid_t pid, const struct sched_attr *attr,
return syscall(__NR_sched_setattr, pid, attr, flags);
}
-static inline int sched_getattr(pid_t pid, struct sched_attr *attr,
- unsigned int size, unsigned int flags)
-{
- return syscall(__NR_sched_getattr, pid, attr, size, flags);
-}
-
int __set_sched_attr(int pid, struct sched_attr *attr)
{
int flags = 0;
@@ -479,13 +473,13 @@ int parse_prio(char *arg, struct sched_attr *sched_param)
if (prio == INVALID_VAL)
return -1;
- if (prio < sched_get_priority_min(SCHED_OTHER))
+ if (prio < MIN_NICE)
return -1;
- if (prio > sched_get_priority_max(SCHED_OTHER))
+ if (prio > MAX_NICE)
return -1;
sched_param->sched_policy = SCHED_OTHER;
- sched_param->sched_priority = prio;
+ sched_param->sched_nice = prio;
break;
default:
return -1;
@@ -536,7 +530,7 @@ int set_cpu_dma_latency(int32_t latency)
*/
static const int find_mount(const char *fs, char *mp, int sizeof_mp)
{
- char mount_point[MAX_PATH];
+ char mount_point[MAX_PATH+1];
char type[100];
int found = 0;
FILE *fp;
@@ -9,6 +9,8 @@
*/
#define BUFF_U64_STR_SIZE 24
#define MAX_PATH 1024
+#define MAX_NICE 20
+#define MIN_NICE -19
#define container_of(ptr, type, member)({ \
const typeof(((type *)0)->member) *__mptr = (ptr); \
@@ -28,10 +28,15 @@ FOPTS := -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \
-fasynchronous-unwind-tables -fstack-clash-protection
WOPTS := -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
+ifeq ($(CC),clang)
+ FOPTS := $(filter-out -ffat-lto-objects, $(FOPTS))
+ WOPTS := $(filter-out -Wno-maybe-uninitialized, $(WOPTS))
+endif
+
TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs)
CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS) -I include
-LDFLAGS := -ggdb $(EXTRA_LDFLAGS)
+LDFLAGS := -flto=auto -ggdb $(EXTRA_LDFLAGS)
LIBS := $$($(PKG_CONFIG) --libs libtracefs)
SRC := $(wildcard src/*.c)
@@ -210,9 +210,9 @@ static char *ikm_read_reactor(char *monitor_name)
static char *ikm_get_current_reactor(char *monitor_name)
{
char *reactors = ikm_read_reactor(monitor_name);
+ char *curr_reactor = NULL;
char *start;
char *end;
- char *curr_reactor;
if (!reactors)
return NULL;
Steven, Tracing tooling updates for 6.8-rc4 RTLA: - rtla tools are exiting with a positive value when usage() is called. Make them return 0 if the usage was called via -h/--help. - the -P priority sets the sched priority for rtla workload. When the SCHED_OTHER scheduler is selected, it sets the rt_priority instead of the nice parameter. Setting the nice value is the correct thing, so fix it. - rtla is failing to compile with clang due to unsupported options from gcc. Adjusting the compiler/linker options makes clang work properly. - Remove the sched_getattr() unused function on utils.c. - Fixes on variable initialization and size, reported by clang. Verification: - rv is failing to compile with clang due to unsupported options from gcc. Adjusting the compiler/linker options makes clang work properly. - Fix an uninitialized variable on in_kernel.c reported by clang. Please pull the latest trace-tools-fixes-v6.8-rc4 tree, which can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/bristot/linux.git trace-tools-fixes-v6.8-rc4 Tag SHA1: 63f0522db203c7d138595e760b9a237bc02990fa Head SHA1: b5f319360371087d52070d8f3fc7789e80ce69a6 Daniel Bristot de Oliveira (6): tools/rtla: Fix Makefile compiler options for clang tools/rtla: Fix uninitialized bucket/data->bucket_size warning tools/rtla: Fix clang warning about mount_point var size tools/rtla: Remove unused sched_getattr() function tools/rv: Fix Makefile compiler options for clang tools/rv: Fix curr_reactor uninitialized variable John Kacur (1): tools/rtla: Exit with EXIT_SUCCESS when help is invoked limingming3 (1): tools/rtla: Replace setting prio with nice for SCHED_OTHER ---- tools/tracing/rtla/Makefile | 7 ++++++- tools/tracing/rtla/src/osnoise_hist.c | 9 ++++++--- tools/tracing/rtla/src/osnoise_top.c | 6 +++++- tools/tracing/rtla/src/timerlat_hist.c | 9 ++++++--- tools/tracing/rtla/src/timerlat_top.c | 6 +++++- tools/tracing/rtla/src/utils.c | 14 ++++---------- tools/tracing/rtla/src/utils.h | 2 ++ tools/verification/rv/Makefile | 7 ++++++- tools/verification/rv/src/in_kernel.c | 2 +- 9 files changed, 41 insertions(+), 21 deletions(-) ---------------------------