From: Jan Stancek jstancek@redhat.com
[ Upstream commit 0eecee340672c4b512f6f4a8c6add26df05d130c ]
glibc commit 21571ca0d703 ("Linux: Add the sched_setattr and sched_getattr functions") now also provides 'struct sched_attr' and sched_setattr() which collide with the ones from rtla.
In file included from src/trace.c:11: src/utils.h:49:8: error: redefinition of ‘struct sched_attr’ 49 | struct sched_attr { | ^~~~~~~~~~ In file included from /usr/include/bits/sched.h:60, from /usr/include/sched.h:43, from /usr/include/tracefs/tracefs.h:10, from src/trace.c:4: /usr/include/linux/sched/types.h:98:8: note: originally defined here 98 | struct sched_attr { | ^~~~~~~~~~
Define 'struct sched_attr' conditionally, similar to what strace did: https://lore.kernel.org/all/20240930222913.3981407-1-raj.khem@gmail.com/ and rename rtla's version of sched_setattr() to avoid collision.
Link: https://lore.kernel.org/8088f66a7a57c1b209cd8ae0ae7c336a7f8c930d.1728572865.... Signed-off-by: Jan Stancek jstancek@redhat.com Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/tracing/rtla/src/utils.c | 4 ++-- tools/tracing/rtla/src/utils.h | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/tracing/rtla/src/utils.c b/tools/tracing/rtla/src/utils.c index 8c8d63c7196cf..02194773ef12d 100644 --- a/tools/tracing/rtla/src/utils.c +++ b/tools/tracing/rtla/src/utils.c @@ -238,7 +238,7 @@ long parse_ns_duration(char *val)
#define SCHED_DEADLINE 6
-static inline int sched_setattr(pid_t pid, const struct sched_attr *attr, +static inline int syscall_sched_setattr(pid_t pid, const struct sched_attr *attr, unsigned int flags) { return syscall(__NR_sched_setattr, pid, attr, flags); } @@ -248,7 +248,7 @@ int __set_sched_attr(int pid, struct sched_attr *attr) int flags = 0; int retval;
- retval = sched_setattr(pid, attr, flags); + retval = syscall_sched_setattr(pid, attr, flags); if (retval < 0) { err_msg("Failed to set sched attributes to the pid %d: %s\n", pid, strerror(errno)); diff --git a/tools/tracing/rtla/src/utils.h b/tools/tracing/rtla/src/utils.h index 92da41aaf4c4c..e445ccf15e701 100644 --- a/tools/tracing/rtla/src/utils.h +++ b/tools/tracing/rtla/src/utils.h @@ -44,6 +44,7 @@ update_sum(unsigned long long *a, unsigned long long *b) *a += *b; }
+#ifndef SCHED_ATTR_SIZE_VER0 struct sched_attr { uint32_t size; uint32_t sched_policy; @@ -54,6 +55,7 @@ struct sched_attr { uint64_t sched_deadline; uint64_t sched_period; }; +#endif /* SCHED_ATTR_SIZE_VER0 */
int parse_prio(char *arg, struct sched_attr *sched_param); int set_comm_sched_attr(const char *comm_prefix, struct sched_attr *attr);