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authorAndrii Nakryiko <andrii@kernel.org>2022-06-27 14:15:18 -0700
committerAlexei Starovoitov <ast@kernel.org>2022-06-28 13:13:32 -0700
commit22dd7a58b2e9965c1a612b6a09c4a6146cbb5873 (patch)
tree1a4ff5567f5ff89138f416b609687e30f84cb567 /tools/lib
parentaaf6886d9b53d34f0a3d2f577ddc1224026d12ab (diff)
downloadlinux-22dd7a58b2e9965c1a612b6a09c4a6146cbb5873.tar.bz2
libbpf: clean up perfbuf APIs
Remove deprecated perfbuf APIs and clean up opts structs. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20220627211527.2245459-7-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/bpf/libbpf.c54
-rw-r--r--tools/lib/bpf/libbpf.h71
-rw-r--r--tools/lib/bpf/libbpf.map5
3 files changed, 18 insertions, 112 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index c0150a7dbd81..38dc00e440c3 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -11975,6 +11975,9 @@ struct bpf_link *bpf_map__attach_struct_ops(const struct bpf_map *map)
return link;
}
+typedef enum bpf_perf_event_ret (*bpf_perf_event_print_t)(struct perf_event_header *hdr,
+ void *private_data);
+
static enum bpf_perf_event_ret
perf_event_read_simple(void *mmap_mem, size_t mmap_size, size_t page_size,
void **copy_mem, size_t *copy_size,
@@ -12023,12 +12026,6 @@ perf_event_read_simple(void *mmap_mem, size_t mmap_size, size_t page_size,
return libbpf_err(ret);
}
-__attribute__((alias("perf_event_read_simple")))
-enum bpf_perf_event_ret
-bpf_perf_event_read_simple(void *mmap_mem, size_t mmap_size, size_t page_size,
- void **copy_mem, size_t *copy_size,
- bpf_perf_event_print_t fn, void *private_data);
-
struct perf_buffer;
struct perf_buffer_params {
@@ -12162,12 +12159,11 @@ error:
static struct perf_buffer *__perf_buffer__new(int map_fd, size_t page_cnt,
struct perf_buffer_params *p);
-DEFAULT_VERSION(perf_buffer__new_v0_6_0, perf_buffer__new, LIBBPF_0.6.0)
-struct perf_buffer *perf_buffer__new_v0_6_0(int map_fd, size_t page_cnt,
- perf_buffer_sample_fn sample_cb,
- perf_buffer_lost_fn lost_cb,
- void *ctx,
- const struct perf_buffer_opts *opts)
+struct perf_buffer *perf_buffer__new(int map_fd, size_t page_cnt,
+ perf_buffer_sample_fn sample_cb,
+ perf_buffer_lost_fn lost_cb,
+ void *ctx,
+ const struct perf_buffer_opts *opts)
{
struct perf_buffer_params p = {};
struct perf_event_attr attr = {};
@@ -12189,22 +12185,10 @@ struct perf_buffer *perf_buffer__new_v0_6_0(int map_fd, size_t page_cnt,
return libbpf_ptr(__perf_buffer__new(map_fd, page_cnt, &p));
}
-COMPAT_VERSION(perf_buffer__new_deprecated, perf_buffer__new, LIBBPF_0.0.4)
-struct perf_buffer *perf_buffer__new_deprecated(int map_fd, size_t page_cnt,
- const struct perf_buffer_opts *opts)
-{
- return perf_buffer__new_v0_6_0(map_fd, page_cnt,
- opts ? opts->sample_cb : NULL,
- opts ? opts->lost_cb : NULL,
- opts ? opts->ctx : NULL,
- NULL);
-}
-
-DEFAULT_VERSION(perf_buffer__new_raw_v0_6_0, perf_buffer__new_raw, LIBBPF_0.6.0)
-struct perf_buffer *perf_buffer__new_raw_v0_6_0(int map_fd, size_t page_cnt,
- struct perf_event_attr *attr,
- perf_buffer_event_fn event_cb, void *ctx,
- const struct perf_buffer_raw_opts *opts)
+struct perf_buffer *perf_buffer__new_raw(int map_fd, size_t page_cnt,
+ struct perf_event_attr *attr,
+ perf_buffer_event_fn event_cb, void *ctx,
+ const struct perf_buffer_raw_opts *opts)
{
struct perf_buffer_params p = {};
@@ -12224,20 +12208,6 @@ struct perf_buffer *perf_buffer__new_raw_v0_6_0(int map_fd, size_t page_cnt,
return libbpf_ptr(__perf_buffer__new(map_fd, page_cnt, &p));
}
-COMPAT_VERSION(perf_buffer__new_raw_deprecated, perf_buffer__new_raw, LIBBPF_0.0.4)
-struct perf_buffer *perf_buffer__new_raw_deprecated(int map_fd, size_t page_cnt,
- const struct perf_buffer_raw_opts *opts)
-{
- LIBBPF_OPTS(perf_buffer_raw_opts, inner_opts,
- .cpu_cnt = opts->cpu_cnt,
- .cpus = opts->cpus,
- .map_keys = opts->map_keys,
- );
-
- return perf_buffer__new_raw_v0_6_0(map_fd, page_cnt, opts->attr,
- opts->event_cb, opts->ctx, &inner_opts);
-}
-
static struct perf_buffer *__perf_buffer__new(int map_fd, size_t page_cnt,
struct perf_buffer_params *p)
{
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 71b19ae1659c..5dc4271fcdb7 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -1269,17 +1269,7 @@ typedef void (*perf_buffer_lost_fn)(void *ctx, int cpu, __u64 cnt);
/* common use perf buffer options */
struct perf_buffer_opts {
- union {
- size_t sz;
- struct { /* DEPRECATED: will be removed in v1.0 */
- /* if specified, sample_cb is called for each sample */
- perf_buffer_sample_fn sample_cb;
- /* if specified, lost_cb is called for each batch of lost samples */
- perf_buffer_lost_fn lost_cb;
- /* ctx is provided to sample_cb and lost_cb */
- void *ctx;
- };
- };
+ size_t sz;
};
#define perf_buffer_opts__last_field sz
@@ -1300,21 +1290,6 @@ perf_buffer__new(int map_fd, size_t page_cnt,
perf_buffer_sample_fn sample_cb, perf_buffer_lost_fn lost_cb, void *ctx,
const struct perf_buffer_opts *opts);
-LIBBPF_API struct perf_buffer *
-perf_buffer__new_v0_6_0(int map_fd, size_t page_cnt,
- perf_buffer_sample_fn sample_cb, perf_buffer_lost_fn lost_cb, void *ctx,
- const struct perf_buffer_opts *opts);
-
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use new variant of perf_buffer__new() instead")
-struct perf_buffer *perf_buffer__new_deprecated(int map_fd, size_t page_cnt,
- const struct perf_buffer_opts *opts);
-
-#define perf_buffer__new(...) ___libbpf_overload(___perf_buffer_new, __VA_ARGS__)
-#define ___perf_buffer_new6(map_fd, page_cnt, sample_cb, lost_cb, ctx, opts) \
- perf_buffer__new(map_fd, page_cnt, sample_cb, lost_cb, ctx, opts)
-#define ___perf_buffer_new3(map_fd, page_cnt, opts) \
- perf_buffer__new_deprecated(map_fd, page_cnt, opts)
-
enum bpf_perf_event_ret {
LIBBPF_PERF_EVENT_DONE = 0,
LIBBPF_PERF_EVENT_ERROR = -1,
@@ -1328,21 +1303,9 @@ typedef enum bpf_perf_event_ret
/* raw perf buffer options, giving most power and control */
struct perf_buffer_raw_opts {
- union {
- struct {
- size_t sz;
- long :0;
- long :0;
- };
- struct { /* DEPRECATED: will be removed in v1.0 */
- /* perf event attrs passed directly into perf_event_open() */
- struct perf_event_attr *attr;
- /* raw event callback */
- perf_buffer_event_fn event_cb;
- /* ctx is provided to event_cb */
- void *ctx;
- };
- };
+ size_t sz;
+ long :0;
+ long :0;
/* if cpu_cnt == 0, open all on all possible CPUs (up to the number of
* max_entries of given PERF_EVENT_ARRAY map)
*/
@@ -1354,26 +1317,13 @@ struct perf_buffer_raw_opts {
};
#define perf_buffer_raw_opts__last_field map_keys
+struct perf_event_attr;
+
LIBBPF_API struct perf_buffer *
perf_buffer__new_raw(int map_fd, size_t page_cnt, struct perf_event_attr *attr,
perf_buffer_event_fn event_cb, void *ctx,
const struct perf_buffer_raw_opts *opts);
-LIBBPF_API struct perf_buffer *
-perf_buffer__new_raw_v0_6_0(int map_fd, size_t page_cnt, struct perf_event_attr *attr,
- perf_buffer_event_fn event_cb, void *ctx,
- const struct perf_buffer_raw_opts *opts);
-
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use new variant of perf_buffer__new_raw() instead")
-struct perf_buffer *perf_buffer__new_raw_deprecated(int map_fd, size_t page_cnt,
- const struct perf_buffer_raw_opts *opts);
-
-#define perf_buffer__new_raw(...) ___libbpf_overload(___perf_buffer_new_raw, __VA_ARGS__)
-#define ___perf_buffer_new_raw6(map_fd, page_cnt, attr, event_cb, ctx, opts) \
- perf_buffer__new_raw(map_fd, page_cnt, attr, event_cb, ctx, opts)
-#define ___perf_buffer_new_raw3(map_fd, page_cnt, opts) \
- perf_buffer__new_raw_deprecated(map_fd, page_cnt, opts)
-
LIBBPF_API void perf_buffer__free(struct perf_buffer *pb);
LIBBPF_API int perf_buffer__epoll_fd(const struct perf_buffer *pb);
LIBBPF_API int perf_buffer__poll(struct perf_buffer *pb, int timeout_ms);
@@ -1382,15 +1332,6 @@ LIBBPF_API int perf_buffer__consume_buffer(struct perf_buffer *pb, size_t buf_id
LIBBPF_API size_t perf_buffer__buffer_cnt(const struct perf_buffer *pb);
LIBBPF_API int perf_buffer__buffer_fd(const struct perf_buffer *pb, size_t buf_idx);
-typedef enum bpf_perf_event_ret
- (*bpf_perf_event_print_t)(struct perf_event_header *hdr,
- void *private_data);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use perf_buffer__poll() or perf_buffer__consume() instead")
-LIBBPF_API enum bpf_perf_event_ret
-bpf_perf_event_read_simple(void *mmap_mem, size_t mmap_size, size_t page_size,
- void **copy_mem, size_t *copy_size,
- bpf_perf_event_print_t fn, void *private_data);
-
struct bpf_prog_linfo;
struct bpf_prog_info;
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index ff5fba17764b..f327adc66933 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -46,7 +46,6 @@ LIBBPF_0.0.1 {
bpf_object__unload;
bpf_object__unpin_maps;
bpf_object__unpin_programs;
- bpf_perf_event_read_simple;
bpf_prog_attach;
bpf_prog_detach;
bpf_prog_detach2;
@@ -144,8 +143,6 @@ LIBBPF_0.0.4 {
btf__parse_elf;
libbpf_num_possible_cpus;
perf_buffer__free;
- perf_buffer__new;
- perf_buffer__new_raw;
perf_buffer__poll;
} LIBBPF_0.0.3;
@@ -369,9 +366,7 @@ LIBBPF_0.6.0 {
libbpf_minor_version;
libbpf_version_string;
perf_buffer__new;
- perf_buffer__new_deprecated;
perf_buffer__new_raw;
- perf_buffer__new_raw_deprecated;
} LIBBPF_0.5.0;
LIBBPF_0.7.0 {