GuillaumeHemmen/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2024-11-01 04:53:36 +01:00
Code Issues Projects Releases Packages Wiki Activity

perf augmented_raw_syscalls.bpf: Move 'struct timespec64' to vmlinux.h

Browse source 
If we instead decide to generate vmlinux.h from BTF info, it will be
there:

  $ pahole timespec64
  struct timespec64 {
  	time64_t                   tv_sec;               /*     0     8 */
  	long int                   tv_nsec;              /*     8     8 */

  	/* size: 16, cachelines: 1, members: 2 */
  	/* last cacheline: 16 bytes */
  };

  $

pahole manages to find it from /sys/kernel/btf/vmlinux, that is
generated from the kernel types.

With this linux/bpf.h doesn't need to be included, as its already in the
minimalistic tools/perf/util/bpf_skel/vmlinux/vmlinux.h file or what we
need comes when generating a vmlinux.h file from BTF info, i.e. when
using GEN_VMLINUX_H=1, as noticed by Namyung in a build break before
removing linux/bpf.h.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/Zc_fp6CgDClPhS_O@x1
This commit is contained in:
Arnaldo Carvalho de Melo 2024-02-16 19:20:23 -03:00 committed by Namhyung Kim
parent f512e08fd0
commit 29d16de26d
2 changed files with 8 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c
View file

@ -6,7 +6,7 @@
* payload expected by the 'perf trace' beautifiers.
*/
#include <linux/bpf.h>
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <linux/limits.h>
@ -22,19 +22,6 @@
#define MAX_CPUS 4096
// FIXME: These should come from system headers
#ifndef bool
typedef char bool;
#endif
typedef int pid_t;
typedef long long int __s64;
typedef __s64 time64_t;
struct timespec64 {
time64_t tv_sec;
long int tv_nsec;
};
/* bpf-output associated map */
struct __augmented_syscalls__ {
__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);

7
tools/perf/util/bpf_skel/vmlinux/vmlinux.h
View file

@ -20,6 +20,13 @@ typedef __s64 s64;
typedef int pid_t;
typedef __s64 time64_t;
struct timespec64 {
time64_t tv_sec;
long int tv_nsec;
};
enum cgroup_subsys_id {
perf_event_cgrp_id = 8,
};