diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2019-10-17 12:59:09 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-10-19 15:35:01 -0300 |
| commit | 6eb65f7a5cc553f5dffb5cea3a874f1087524d99 (patch) | |
| tree | 0a51ce3888aae612aeba90891f78c261fc0c361c /tools/perf/lib/include | |
| parent | 6a5f3d94cb69a185b921cb92c39888dc31009acb (diff) | |
| download | linux-6eb65f7a5cc553f5dffb5cea3a874f1087524d99.tar.gz linux-6eb65f7a5cc553f5dffb5cea3a874f1087524d99.tar.bz2 linux-6eb65f7a5cc553f5dffb5cea3a874f1087524d99.zip | |
libperf: Introduce perf_evlist__for_each_mmap()
Add the perf_evlist__for_each_mmap() function and export it in the
perf/evlist.h header, so that the user can iterate through 'struct
perf_mmap' objects.
Add a internal perf_mmap__link() function to do the actual linking.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20191017105918.20873-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/lib/include')
| -rw-r--r-- | tools/perf/lib/include/internal/evlist.h | 2 | ||||
| -rw-r--r-- | tools/perf/lib/include/internal/mmap.h | 5 | ||||
| -rw-r--r-- | tools/perf/lib/include/perf/evlist.h | 9 |
3 files changed, 14 insertions, 2 deletions
diff --git a/tools/perf/lib/include/internal/evlist.h b/tools/perf/lib/include/internal/evlist.h index be0b25a70730..20d90e29fc0e 100644 --- a/tools/perf/lib/include/internal/evlist.h +++ b/tools/perf/lib/include/internal/evlist.h @@ -25,6 +25,8 @@ struct perf_evlist { struct hlist_head heads[PERF_EVLIST__HLIST_SIZE]; struct perf_mmap *mmap; struct perf_mmap *mmap_ovw; + struct perf_mmap *mmap_first; + struct perf_mmap *mmap_ovw_first; }; typedef void diff --git a/tools/perf/lib/include/internal/mmap.h b/tools/perf/lib/include/internal/mmap.h index ee536c4441bb..be7556e0a2b2 100644 --- a/tools/perf/lib/include/internal/mmap.h +++ b/tools/perf/lib/include/internal/mmap.h @@ -32,6 +32,7 @@ struct perf_mmap { u64 flush; libperf_unmap_cb_t unmap_cb; char event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8); + struct perf_mmap *next; }; struct perf_mmap_param { @@ -41,8 +42,8 @@ struct perf_mmap_param { size_t perf_mmap__mmap_len(struct perf_mmap *map); -void perf_mmap__init(struct perf_mmap *map, bool overwrite, - libperf_unmap_cb_t unmap_cb); +void perf_mmap__init(struct perf_mmap *map, struct perf_mmap *prev, + bool overwrite, libperf_unmap_cb_t unmap_cb); int perf_mmap__mmap(struct perf_mmap *map, struct perf_mmap_param *mp, int fd, int cpu); void perf_mmap__munmap(struct perf_mmap *map); diff --git a/tools/perf/lib/include/perf/evlist.h b/tools/perf/lib/include/perf/evlist.h index 16f526e74d13..8c4b3c28535e 100644 --- a/tools/perf/lib/include/perf/evlist.h +++ b/tools/perf/lib/include/perf/evlist.h @@ -3,6 +3,7 @@ #define __LIBPERF_EVLIST_H #include <perf/core.h> +#include <stdbool.h> struct perf_evlist; struct perf_evsel; @@ -38,4 +39,12 @@ LIBPERF_API int perf_evlist__filter_pollfd(struct perf_evlist *evlist, LIBPERF_API int perf_evlist__mmap(struct perf_evlist *evlist, int pages); LIBPERF_API void perf_evlist__munmap(struct perf_evlist *evlist); +LIBPERF_API struct perf_mmap *perf_evlist__next_mmap(struct perf_evlist *evlist, + struct perf_mmap *map, + bool overwrite); +#define perf_evlist__for_each_mmap(evlist, pos, overwrite) \ + for ((pos) = perf_evlist__next_mmap((evlist), NULL, overwrite); \ + (pos) != NULL; \ + (pos) = perf_evlist__next_mmap((evlist), (pos), overwrite)) + #endif /* __LIBPERF_EVLIST_H */ |