From: Namhyung Kim <namhyung@kernel.org> Some helper functions will be used for cgroup counting too. Move them to a header file for sharing. Committer notes: Fix the build on older systems with: - struct bpf_map_info map_info = {0}; + struct bpf_map_info map_info = { .id = 0, }; This wasn't breaking the build in such systems as bpf_counter.c isn't built due to: tools/perf/util/Build: perf-$(CONFIG_PERF_BPF_SKEL) += bpf_counter.o The bpf_counter.h file on the other hand is included from places that are built everywhere. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20210625071826.608504-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/bpf_counter.c | 52 ----------------------------------- tools/perf/util/bpf_counter.h | 52 +++++++++++++++++++++++++++++++++++ 2 files changed, 52 insertions(+), 52 deletions(-) diff --git a/tools/perf/util/bpf_counter.c b/tools/perf/util/bpf_counter.c index ddb52f748c8e..da75793ed986 100644 --- a/tools/perf/util/bpf_counter.c +++ b/tools/perf/util/bpf_counter.c @@ -7,12 +7,8 @@ #include <unistd.h> #include <sys/file.h> #include <sys/time.h> -#include <sys/resource.h> #include <linux/err.h> #include <linux/zalloc.h> -#include <bpf/bpf.h> -#include <bpf/btf.h> -#include <bpf/libbpf.h> #include <api/fs/fs.h> #include <perf/bpf_perf.h> @@ -37,13 +33,6 @@ static inline void *u64_to_ptr(__u64 ptr) return (void *)(unsigned long)ptr; } -static void set_max_rlimit(void) -{ - struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; - - setrlimit(RLIMIT_MEMLOCK, &rinf); -} - static struct bpf_counter *bpf_counter_alloc(void) { struct bpf_counter *counter; @@ -297,33 +286,6 @@ struct bpf_counter_ops bpf_program_profiler_ops = { .install_pe = bpf_program_profiler__install_pe, }; -static __u32 bpf_link_get_id(int fd) -{ - struct bpf_link_info link_info = {0}; - __u32 link_info_len = sizeof(link_info); - - bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len); - return link_info.id; -} - -static __u32 bpf_link_get_prog_id(int fd) -{ - struct bpf_link_info link_info = {0}; - __u32 link_info_len = sizeof(link_info); - - bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len); - return link_info.prog_id; -} - -static __u32 bpf_map_get_id(int fd) -{ - struct bpf_map_info map_info = {0}; - __u32 map_info_len = sizeof(map_info); - - bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len); - return map_info.id; -} - static bool bperf_attr_map_compatible(int attr_map_fd) { struct bpf_map_info map_info = {0}; @@ -385,20 +347,6 @@ static int bperf_lock_attr_map(struct target *target) return map_fd; } -/* trigger the leader program on a cpu */ -static int bperf_trigger_reading(int prog_fd, int cpu) -{ - DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts, - .ctx_in = NULL, - .ctx_size_in = 0, - .flags = BPF_F_TEST_RUN_ON_CPU, - .cpu = cpu, - .retval = 0, - ); - - return bpf_prog_test_run_opts(prog_fd, &opts); -} - static int bperf_check_target(struct evsel *evsel, struct target *target, enum bperf_filter_type *filter_type, diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h index dac052b16ecf..434ded6749d6 100644 --- a/tools/perf/util/bpf_counter.h +++ b/tools/perf/util/bpf_counter.h @@ -3,6 +3,10 @@ #define __PERF_BPF_COUNTER_H 1 #include <linux/list.h> +#include <sys/resource.h> +#include <bpf/bpf.h> +#include <bpf/btf.h> +#include <bpf/libbpf.h> struct evsel; struct target; @@ -76,4 +80,52 @@ static inline int bpf_counter__install_pe(struct evsel *evsel __maybe_unused, #endif /* HAVE_BPF_SKEL */ +static inline void set_max_rlimit(void) +{ + struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; + + setrlimit(RLIMIT_MEMLOCK, &rinf); +} + +static inline __u32 bpf_link_get_id(int fd) +{ + struct bpf_link_info link_info = { .id = 0, }; + __u32 link_info_len = sizeof(link_info); + + bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len); + return link_info.id; +} + +static inline __u32 bpf_link_get_prog_id(int fd) +{ + struct bpf_link_info link_info = { .id = 0, }; + __u32 link_info_len = sizeof(link_info); + + bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len); + return link_info.prog_id; +} + +static inline __u32 bpf_map_get_id(int fd) +{ + struct bpf_map_info map_info = { .id = 0, }; + __u32 map_info_len = sizeof(map_info); + + bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len); + return map_info.id; +} + +/* trigger the leader program on a cpu */ +static inline int bperf_trigger_reading(int prog_fd, int cpu) +{ + DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts, + .ctx_in = NULL, + .ctx_size_in = 0, + .flags = BPF_F_TEST_RUN_ON_CPU, + .cpu = cpu, + .retval = 0, + ); + + return bpf_prog_test_run_opts(prog_fd, &opts); +} + #endif /* __PERF_BPF_COUNTER_H */ -- 2.34.1