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Date: Mon, 9 Jan 2023 12:34:24 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Andres Freund <andres@...razel.de>,
Quentin Monnet <quentin@...valent.com>,
Roberto Sassu <roberto.sassu@...wei.com>,
Christy Lee <christylee@...com>,
Andrii Nakryiko <andrii@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
bpf@...r.kernel.org
Cc: Ian Rogers <irogers@...gle.com>
Subject: [PATCH v1 3/3] perf bpf: Remove pre libbpf 1.0 conditional logic
Tests are no longer applicable as libbpf 1.0 can be assumed.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/Makefile.config | 9 -----
tools/perf/util/bpf-event.c | 66 -----------------------------------
tools/perf/util/bpf-loader.c | 18 ----------
tools/perf/util/bpf_counter.c | 18 ----------
4 files changed, 111 deletions(-)
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 399e03338613..2197970bd503 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -566,15 +566,6 @@ ifndef NO_LIBELF
# detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
$(call feature_check,libbpf)
- # Feature test requires libbpf 1.0 so we can assume the following:
- CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
- CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
- CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
- CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
- CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
- CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
- CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
-
ifdef LIBBPF_DYNAMIC
ifeq ($(feature-libbpf), 1)
EXTLIBS += -lbpf
diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index cc7c1f90cf62..025f331b3867 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -22,72 +22,6 @@
#include "record.h"
#include "util/synthetic-events.h"
-#ifndef HAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
-struct btf *btf__load_from_kernel_by_id(__u32 id)
-{
- struct btf *btf;
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- int err = btf__get_from_id(id, &btf);
-#pragma GCC diagnostic pop
-
- return err ? ERR_PTR(err) : btf;
-}
-#endif
-
-#ifndef HAVE_LIBBPF_BPF_PROG_LOAD
-LIBBPF_API int bpf_load_program(enum bpf_prog_type type,
- const struct bpf_insn *insns, size_t insns_cnt,
- const char *license, __u32 kern_version,
- char *log_buf, size_t log_buf_sz);
-
-int bpf_prog_load(enum bpf_prog_type prog_type,
- const char *prog_name __maybe_unused,
- const char *license,
- const struct bpf_insn *insns, size_t insn_cnt,
- const struct bpf_prog_load_opts *opts)
-{
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- return bpf_load_program(prog_type, insns, insn_cnt, license,
- opts->kern_version, opts->log_buf, opts->log_size);
-#pragma GCC diagnostic pop
-}
-#endif
-
-#ifndef HAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
-struct bpf_program *
-bpf_object__next_program(const struct bpf_object *obj, struct bpf_program *prev)
-{
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- return bpf_program__next(prev, obj);
-#pragma GCC diagnostic pop
-}
-#endif
-
-#ifndef HAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
-struct bpf_map *
-bpf_object__next_map(const struct bpf_object *obj, const struct bpf_map *prev)
-{
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- return bpf_map__next(prev, obj);
-#pragma GCC diagnostic pop
-}
-#endif
-
-#ifndef HAVE_LIBBPF_BTF__RAW_DATA
-const void *
-btf__raw_data(const struct btf *btf_ro, __u32 *size)
-{
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- return btf__get_raw_data(btf_ro, size);
-#pragma GCC diagnostic pop
-}
-#endif
-
static int snprintf_hex(char *buf, size_t size, unsigned char *data, size_t len)
{
int ret = 0;
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 6e9b06cf06ee..44cde27d6389 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -32,24 +32,6 @@
#include <internal/xyarray.h>
-#ifndef HAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
-int bpf_program__set_insns(struct bpf_program *prog __maybe_unused,
- struct bpf_insn *new_insns __maybe_unused, size_t new_insn_cnt __maybe_unused)
-{
- pr_err("%s: not support, update libbpf\n", __func__);
- return -ENOTSUP;
-}
-
-int libbpf_register_prog_handler(const char *sec __maybe_unused,
- enum bpf_prog_type prog_type __maybe_unused,
- enum bpf_attach_type exp_attach_type __maybe_unused,
- const struct libbpf_prog_handler_opts *opts __maybe_unused)
-{
- pr_err("%s: not support, update libbpf\n", __func__);
- return -ENOTSUP;
-}
-#endif
-
/* temporarily disable libbpf deprecation warnings */
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
diff --git a/tools/perf/util/bpf_counter.c b/tools/perf/util/bpf_counter.c
index eeee899fcf34..aa78a15a6f0a 100644
--- a/tools/perf/util/bpf_counter.c
+++ b/tools/perf/util/bpf_counter.c
@@ -312,24 +312,6 @@ static bool bperf_attr_map_compatible(int attr_map_fd)
(map_info.value_size == sizeof(struct perf_event_attr_map_entry));
}
-#ifndef HAVE_LIBBPF_BPF_MAP_CREATE
-LIBBPF_API int bpf_create_map(enum bpf_map_type map_type, int key_size,
- int value_size, int max_entries, __u32 map_flags);
-int
-bpf_map_create(enum bpf_map_type map_type,
- const char *map_name __maybe_unused,
- __u32 key_size,
- __u32 value_size,
- __u32 max_entries,
- const struct bpf_map_create_opts *opts __maybe_unused)
-{
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- return bpf_create_map(map_type, key_size, value_size, max_entries, 0);
-#pragma GCC diagnostic pop
-}
-#endif
-
static int bperf_lock_attr_map(struct target *target)
{
char path[PATH_MAX];
--
2.39.0.314.g84b9a713c41-goog
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