diff options
24 files changed, 318 insertions, 194 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index 622568c7a9b8..31dfef6a4121 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -177,7 +177,8 @@ $(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF) -I$(if $(OUTPUT),$(OUTPUT),.) \ -I$(srctree)/tools/include/uapi/ \ -I$(LIBBPF_INCLUDE) \ - -g -O2 -Wall -target bpf -c $< -o $@ && $(LLVM_STRIP) -g $@ + -g -O2 -Wall -target bpf -c $< -o $@ + $(Q)$(LLVM_STRIP) -g $@ $(OUTPUT)%.skel.h: $(OUTPUT)%.bpf.o $(BPFTOOL_BOOTSTRAP) $(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) gen skeleton $< > $@ @@ -192,10 +193,10 @@ endif CFLAGS += $(if $(BUILD_BPF_SKELS),,-DBPFTOOL_WITHOUT_SKELETONS) $(BOOTSTRAP_OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c - $(QUIET_CC)$(HOSTCC) $(CFLAGS) -c -MMD -o $@ $< + $(QUIET_CC)$(HOSTCC) $(CFLAGS) -c -MMD $< -o $@ $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c - $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $< + $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD $< -o $@ $(OUTPUT)feature.o: ifneq ($(feature-zlib), 1) @@ -203,17 +204,16 @@ ifneq ($(feature-zlib), 1) endif $(BPFTOOL_BOOTSTRAP): $(BOOTSTRAP_OBJS) $(LIBBPF_BOOTSTRAP) - $(QUIET_LINK)$(HOSTCC) $(CFLAGS) $(LDFLAGS) -o $@ $(BOOTSTRAP_OBJS) \ - $(LIBS_BOOTSTRAP) + $(QUIET_LINK)$(HOSTCC) $(CFLAGS) $(LDFLAGS) $(BOOTSTRAP_OBJS) $(LIBS_BOOTSTRAP) -o $@ $(OUTPUT)bpftool: $(OBJS) $(LIBBPF) - $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS) $(LIBS) + $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) $(LIBS) -o $@ $(BOOTSTRAP_OUTPUT)%.o: %.c $(LIBBPF_INTERNAL_HDRS) | $(BOOTSTRAP_OUTPUT) - $(QUIET_CC)$(HOSTCC) $(CFLAGS) -c -MMD -o $@ $< + $(QUIET_CC)$(HOSTCC) $(CFLAGS) -c -MMD $< -o $@ $(OUTPUT)%.o: %.c - $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $< + $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD $< -o $@ feature-detect-clean: $(call QUIET_CLEAN, feature-detect) diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c index 015d2758f826..223ac7676027 100644 --- a/tools/bpf/bpftool/btf.c +++ b/tools/bpf/bpftool/btf.c @@ -418,7 +418,7 @@ static int dump_btf_c(const struct btf *btf, struct btf_dump *d; int err = 0, i; - d = btf_dump__new(btf, NULL, NULL, btf_dump_printf); + d = btf_dump__new(btf, btf_dump_printf, NULL, NULL); if (IS_ERR(d)) return PTR_ERR(d); diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c index 5c18351290f0..89f0e828bbfa 100644 --- a/tools/bpf/bpftool/gen.c +++ b/tools/bpf/bpftool/gen.c @@ -218,7 +218,7 @@ static int codegen_datasecs(struct bpf_object *obj, const char *obj_name) char sec_ident[256], map_ident[256]; int i, err = 0; - d = btf_dump__new(btf, NULL, NULL, codegen_btf_dump_printf); + d = btf_dump__new(btf, codegen_btf_dump_printf, NULL, NULL); if (IS_ERR(d)) return PTR_ERR(d); diff --git a/tools/bpf/bpftool/map_perf_ring.c b/tools/bpf/bpftool/map_perf_ring.c index b98ea702d284..6b0c410152de 100644 --- a/tools/bpf/bpftool/map_perf_ring.c +++ b/tools/bpf/bpftool/map_perf_ring.c @@ -124,7 +124,7 @@ int do_event_pipe(int argc, char **argv) .wakeup_events = 1, }; struct bpf_map_info map_info = {}; - struct perf_buffer_raw_opts opts = {}; + LIBBPF_OPTS(perf_buffer_raw_opts, opts); struct event_pipe_ctx ctx = { .all_cpus = true, .cpu = -1, @@ -190,14 +190,11 @@ int do_event_pipe(int argc, char **argv) ctx.idx = 0; } - opts.attr = &perf_attr; - opts.event_cb = print_bpf_output; - opts.ctx = &ctx; opts.cpu_cnt = ctx.all_cpus ? 0 : 1; opts.cpus = &ctx.cpu; opts.map_keys = &ctx.idx; - - pb = perf_buffer__new_raw(map_fd, MMAP_PAGE_CNT, &opts); + pb = perf_buffer__new_raw(map_fd, MMAP_PAGE_CNT, &perf_attr, + print_bpf_output, &ctx, &opts); err = libbpf_get_error(pb); if (err) { p_err("failed to create perf buffer: %s (%d)", diff --git a/tools/bpf/runqslower/runqslower.c b/tools/bpf/runqslower/runqslower.c index d89715844952..2414cc764461 100644 --- a/tools/bpf/runqslower/runqslower.c +++ b/tools/bpf/runqslower/runqslower.c @@ -123,7 +123,6 @@ int main(int argc, char **argv) .parser = parse_arg, .doc = argp_program_doc, }; - struct perf_buffer_opts pb_opts; struct perf_buffer *pb = NULL; struct runqslower_bpf *obj; int err; @@ -165,9 +164,8 @@ int main(int argc, char **argv) printf("Tracing run queue latency higher than %llu us\n", env.min_us); printf("%-8s %-16s %-6s %14s\n", "TIME", "COMM", "PID", "LAT(us)"); - pb_opts.sample_cb = handle_event; - pb_opts.lost_cb = handle_lost_events; - pb = perf_buffer__new(bpf_map__fd(obj->maps.events), 64, &pb_opts); + pb = perf_buffer__new(bpf_map__fd(obj->maps.events), 64, + handle_event, handle_lost_events, NULL, NULL); err = libbpf_get_error(pb); if (err) { pb = NULL; diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c index 7e4c5586bd87..fcec27622e7a 100644 --- a/tools/lib/bpf/btf.c +++ b/tools/lib/bpf/btf.c @@ -2846,8 +2846,7 @@ __u32 btf_ext__line_info_rec_size(const struct btf_ext *btf_ext) struct btf_dedup; -static struct btf_dedup *btf_dedup_new(struct btf *btf, struct btf_ext *btf_ext, - const struct btf_dedup_opts *opts); +static struct btf_dedup *btf_dedup_new(struct btf *btf, const struct btf_dedup_opts *opts); static void btf_dedup_free(struct btf_dedup *d); static int btf_dedup_prep(struct btf_dedup *d); static int btf_dedup_strings(struct btf_dedup *d); @@ -2994,12 +2993,17 @@ static int btf_dedup_remap_types(struct btf_dedup *d); * deduplicating structs/unions is described in greater details in comments for * `btf_dedup_is_equiv` function. */ -int btf__dedup(struct btf *btf, struct btf_ext *btf_ext, - const struct btf_dedup_opts *opts) + +DEFAULT_VERSION(btf__dedup_v0_6_0, btf__dedup, LIBBPF_0.6.0) +int btf__dedup_v0_6_0(struct btf *btf, const struct btf_dedup_opts *opts) { - struct btf_dedup *d = btf_dedup_new(btf, btf_ext, opts); + struct btf_dedup *d; int err; + if (!OPTS_VALID(opts, btf_dedup_opts)) + return libbpf_err(-EINVAL); + + d = btf_dedup_new(btf, opts); if (IS_ERR(d)) { pr_debug("btf_dedup_new failed: %ld", PTR_ERR(d)); return libbpf_err(-EINVAL); @@ -3051,6 +3055,19 @@ done: return libbpf_err(err); } +COMPAT_VERSION(bpf__dedup_deprecated, btf__dedup, LIBBPF_0.0.2) +int btf__dedup_deprecated(struct btf *btf, struct btf_ext *btf_ext, const void *unused_opts) +{ + LIBBPF_OPTS(btf_dedup_opts, opts, .btf_ext = btf_ext); + + if (unused_opts) { + pr_warn("please use new version of btf__dedup() that supports options\n"); + return libbpf_err(-ENOTSUP); + } + + return btf__dedup(btf, &opts); +} + #define BTF_UNPROCESSED_ID ((__u32)-1) #define BTF_IN_PROGRESS_ID ((__u32)-2) @@ -3163,8 +3180,7 @@ static bool btf_dedup_equal_fn(const void *k1, const void *k2, void *ctx) return k1 == k2; } -static struct btf_dedup *btf_dedup_new(struct btf *btf, struct btf_ext *btf_ext, - const struct btf_dedup_opts *opts) +static struct btf_dedup *btf_dedup_new(struct btf *btf, const struct btf_dedup_opts *opts) { struct btf_dedup *d = calloc(1, sizeof(struct btf_dedup)); hashmap_hash_fn hash_fn = btf_dedup_identity_hash_fn; @@ -3173,13 +3189,11 @@ static struct btf_dedup *btf_dedup_new(struct btf *btf, struct btf_ext *btf_ext, if (!d) return ERR_PTR(-ENOMEM); - d->opts.dont_resolve_fwds = opts && opts->dont_resolve_fwds; - /* dedup_table_size is now used only to force collisions in tests */ - if (opts && opts->dedup_table_size == 1) + if (OPTS_GET(opts, force_collisions, false)) hash_fn = btf_dedup_collision_hash_fn; d->btf = btf; - d->btf_ext = btf_ext; + d->btf_ext = OPTS_GET(opts, btf_ext, NULL); d->dedup_table = hashmap__new(hash_fn, btf_dedup_equal_fn, NULL); if (IS_ERR(d->dedup_table)) { @@ -3708,8 +3722,6 @@ static int btf_dedup_prim_type(struct btf_dedup *d, __u32 type_id) new_id = cand_id; break; } - if (d->opts.dont_resolve_fwds) - continue; if (btf_compat_enum(t, cand)) { if (btf_is_enum_fwd(t)) { /* resolve fwd to full enum */ @@ -3952,8 +3964,7 @@ static int btf_dedup_is_equiv(struct btf_dedup *d, __u32 cand_id, return 0; /* FWD <--> STRUCT/UNION equivalence check, if enabled */ - if (!d->opts.dont_resolve_fwds - && (cand_kind == BTF_KIND_FWD || canon_kind == BTF_KIND_FWD) + if ((cand_kind == BTF_KIND_FWD || canon_kind == BTF_KIND_FWD) && cand_kind != canon_kind) { __u16 real_kind; __u16 fwd_kind; @@ -3979,10 +3990,7 @@ static int btf_dedup_is_equiv(struct btf_dedup *d, __u32 cand_id, return btf_equal_int_tag(cand_type, canon_type); case BTF_KIND_ENUM: - if (d->opts.dont_resolve_fwds) - return btf_equal_enum(cand_type, canon_type); - else - return btf_compat_enum(cand_type, canon_type); + return btf_compat_enum(cand_type, canon_type); case BTF_KIND_FWD: case BTF_KIND_FLOAT: diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h index bc005ba3ceec..45310c65e865 100644 --- a/tools/lib/bpf/btf.h +++ b/tools/lib/bpf/btf.h @@ -245,25 +245,80 @@ LIBBPF_API int btf__add_decl_tag(struct btf *btf, const char *value, int ref_typ int component_idx); struct btf_dedup_opts { - unsigned int dedup_table_size; - bool dont_resolve_fwds; + size_t sz; + /* optional .BTF.ext info to dedup along the main BTF info */ + struct btf_ext *btf_ext; + /* force hash collisions (used for testing) */ + bool force_collisions; + size_t :0; }; +#define btf_dedup_opts__last_field force_collisions + +LIBBPF_API int btf__dedup(struct btf *btf, const struct btf_dedup_opts *opts); -LIBBPF_API int btf__dedup(struct btf *btf, struct btf_ext *btf_ext, - const struct btf_dedup_opts *opts); +LIBBPF_API int btf__dedup_v0_6_0(struct btf *btf, const struct btf_dedup_opts *opts); + +LIBBPF_DEPRECATED_SINCE(0, 7, "use btf__dedup() instead") +LIBBPF_API int btf__dedup_deprecated(struct btf *btf, struct btf_ext *btf_ext, const void *opts); +#define btf__dedup(...) ___libbpf_overload(___btf_dedup, __VA_ARGS__) +#define ___btf_dedup3(btf, btf_ext, opts) btf__dedup_deprecated(btf, btf_ext, opts) +#define ___btf_dedup2(btf, opts) btf__dedup(btf, opts) struct btf_dump; struct btf_dump_opts { - void *ctx; + union { + size_t sz; + void *ctx; /* DEPRECATED: will be gone in v1.0 */ + }; }; typedef void (*btf_dump_printf_fn_t)(void *ctx, const char *fmt, va_list args); LIBBPF_API struct btf_dump *btf_dump__new(const struct btf *btf, - const struct btf_ext *btf_ext, - const struct btf_dump_opts *opts, - btf_dump_printf_fn_t printf_fn); + btf_dump_printf_fn_t printf_fn, + void *ctx, + const struct btf_dump_opts *opts); + +LIBBPF_API struct btf_dump *btf_dump__new_v0_6_0(const struct btf *btf, + btf_dump_printf_fn_t printf_fn, + void *ctx, + const struct btf_dump_opts *opts); + +LIBBPF_API struct btf_dump *btf_dump__new_deprecated(const struct btf *btf, + const struct btf_ext *btf_ext, + const struct btf_dump_opts *opts, + btf_dump_printf_fn_t printf_fn); + +/* Choose either btf_dump__new() or btf_dump__new_deprecated() based on the + * type of 4th argument. If it's btf_dump's print callback, use deprecated + * API; otherwise, choose the new btf_dump__new(). ___libbpf_override() + * doesn't work here because both variants have 4 input arguments. + * + * (void *) casts are necessary to avoid compilation warnings about type + * mismatches, because even though __builtin_choose_expr() only ever evaluates + * one side the other side still has to satisfy type constraints (this is + * compiler implementation limitation which might be lifted eventually, + * according to the documentation). So passing struct btf_ext in place of + * btf_dump_printf_fn_t would be generating compilation warning. Casting to + * void * avoids this issue. + * + * Also, two type compatibility checks for a function and function pointer are + * required because passing function reference into btf_dump__new() as + * btf_dump__new(..., my_callback, ...) and as btf_dump__new(..., + * &my_callback, ...) (not explicit ampersand in the latter case) actually + * differs as far as __builtin_types_compatible_p() is concerned. Thus two + * checks are combined to detect callback argument. + * + * The rest works just like in case of ___libbpf_override() usage with symbol + * versioning. + */ +#define btf_dump__new(a1, a2, a3, a4) __builtin_choose_expr( \ + __builtin_types_compatible_p(typeof(a4), btf_dump_printf_fn_t) || \ + __builtin_types_compatible_p(typeof(a4), void(void *, const char *, va_list)), \ + btf_dump__new_deprecated((void *)a1, (void *)a2, (void *)a3, (void *)a4), \ + btf_dump__new((void *)a1, (void *)a2, (void *)a3, (void *)a4)) + LIBBPF_API void btf_dump__free(struct btf_dump *d); LIBBPF_API int btf_dump__dump_type(struct btf_dump *d, __u32 id); diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c index 17db62b5002e..b8cd7e4f557a 100644 --- a/tools/lib/bpf/btf_dump.c +++ b/tools/lib/bpf/btf_dump.c @@ -77,9 +77,8 @@ struct btf_dump_data { struct btf_dump { const struct btf *btf; - const struct btf_ext *btf_ext; btf_dump_printf_fn_t printf_fn; - struct btf_dump_opts opts; + void *cb_ctx; int ptr_sz; bool strip_mods; bool skip_anon_defs; @@ -138,29 +137,32 @@ static void btf_dump_printf(const struct btf_dump *d, const char *fmt, ...) va_list args; va_start(args, fmt); - d->printf_fn(d->opts.ctx, fmt, args); + d->printf_fn(d->cb_ctx, fmt, args); va_end(args); } static int btf_dump_mark_referenced(struct btf_dump *d); static int btf_dump_resize(struct btf_dump *d); -struct btf_dump *btf_dump__new(const struct btf *btf, - const struct btf_ext *btf_ext, - const struct btf_dump_opts *opts, - btf_dump_printf_fn_t printf_fn) +DEFAULT_VERSION(btf_dump__new_v0_6_0, btf_dump__new, LIBBPF_0.6.0) +struct btf_dump *btf_dump__new_v0_6_0(const struct btf *btf, + btf_dump_printf_fn_t printf_fn, + void *ctx, + const struct btf_dump_opts *opts) { struct btf_dump *d; int err; + if (!printf_fn) + return libbpf_err_ptr(-EINVAL); + d = calloc(1, sizeof(struct btf_dump)); if (!d) return libbpf_err_ptr(-ENOMEM); d->btf = btf; - d->btf_ext = btf_ext; d->printf_fn = printf_fn; - d->opts.ctx = opts ? opts->ctx : NULL; + d->cb_ctx = ctx; d->ptr_sz = btf__pointer_size(btf) ? : sizeof(void *); d->type_names = hashmap__new(str_hash_fn, str_equal_fn, NULL); @@ -186,6 +188,17 @@ err: return libbpf_err_ptr(err); } +COMPAT_VERSION(btf_dump__new_deprecated, btf_dump__new, LIBBPF_0.0.4) +struct btf_dump *btf_dump__new_deprecated(const struct btf *btf, + const struct btf_ext *btf_ext, + const struct btf_dump_opts *opts, + btf_dump_printf_fn_t printf_fn) +{ + if (!printf_fn) + return libbpf_err_ptr(-EINVAL); + return btf_dump__new_v0_6_0(btf, printf_fn, opts ? opts->ctx : NULL, opts); +} + static int btf_dump_resize(struct btf_dump *d) { int err, last_id = btf__type_cnt(d->btf) - 1; diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index a823b5ed705b..7db14859b27c 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -10578,11 +10578,18 @@ error: static struct perf_buffer *__perf_buffer__new(int map_fd, size_t page_cnt, struct perf_buffer_params *p); -struct perf_buffer *perf_buffer__new(int map_fd, size_t page_cnt, - const struct perf_buffer_opts *opts) +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_params p = {}; - struct perf_event_attr attr = { 0, }; + struct perf_event_attr attr = {}; + + if (!OPTS_VALID(opts, perf_buffer_opts)) + return libbpf_err_ptr(-EINVAL); attr.config = PERF_COUNT_SW_BPF_OUTPUT; attr.type = PERF_TYPE_SOFTWARE; @@ -10591,29 +10598,62 @@ struct perf_buffer *perf_buffer__new(int map_fd, size_t page_cnt, attr.wakeup_events = 1; p.attr = &attr; - p.sample_cb = opts ? opts->sample_cb : NULL; - p.lost_cb = opts ? opts->lost_cb : NULL; - p.ctx = opts ? opts->ctx : NULL; + p.sample_cb = sample_cb; + p.lost_cb = lost_cb; + p.ctx = ctx; return libbpf_ptr(__perf_buffer__new(map_fd, page_cnt, &p)); } -struct perf_buffer * -perf_buffer__new_raw(int map_fd, size_t page_cnt, - const struct perf_buffer_raw_opts *opts) +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_params p = {}; - p.attr = opts->attr; - p.event_cb = opts->event_cb; - p.ctx = opts->ctx; - p.cpu_cnt = opts->cpu_cnt; - p.cpus = opts->cpus; - p.map_keys = opts->map_keys; + if (page_cnt == 0 || !attr) + return libbpf_err_ptr(-EINVAL); + + if (!OPTS_VALID(opts, perf_buffer_raw_opts)) + return libbpf_err_ptr(-EINVAL); + + p.attr = attr; + p.event_cb = event_cb; + p.ctx = ctx; + p.cpu_cnt = OPTS_GET(opts, cpu_cnt, 0); + p.cpus = OPTS_GET(opts, cpus, NULL); + p.map_keys = OPTS_GET(opts, map_keys, NULL); 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 f69512ae8505..4ec69f224342 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -778,18 +778,52 @@ typedef void (*perf_buffer_lost_fn)(void *ctx, int cpu, __u64 cnt); /* common use perf buffer options */ struct perf_buffer_opts { - /* 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; + 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; + }; + }; }; +#define perf_buffer_opts__last_field sz +/** + * @brief **perf_buffer__new()** creates BPF perfbuf manager for a specified + * BPF_PERF_EVENT_ARRAY map + * @param map_fd FD of BPF_PERF_EVENT_ARRAY BPF map that will be used by BPF + * code to send data over to user-space + * @param page_cnt number of memory pages allocated for each per-CPU buffer + * @param sample_cb function called on each received data record + * @param lost_cb function called when record loss has occurred + * @param ctx user-provided extra context passed into *sample_cb* and *lost_cb* + * @return a new instance of struct perf_buffer on success, NULL on error with + * *errno* containing an error code + */ LIBBPF_API 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); +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, @@ -803,12 +837,21 @@ typedef enum bpf_perf_event_ret /* raw perf buffer options, giving most power and control */ struct perf_buffer_raw_opts { - /* 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; + 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; + }; + }; /* if cpu_cnt == 0, open all on all possible CPUs (up to the number of * max_entries of given PERF_EVENT_ARRAY map) */ @@ -818,11 +861,28 @@ struct perf_buffer_raw_opts { /* if cpu_cnt > 0, map_keys specify map keys to set per-CPU FDs for */ int *map_keys; }; +#define perf_buffer_raw_opts__last_field map_keys LIBBPF_API struct perf_buffer * -perf_buffer__new_raw(int map_fd, size_t page_cnt, +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); diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index 256d5d4be951..9e91aa8da303 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -403,6 +403,14 @@ LIBBPF_0.6.0 { bpf_program__set_extra_flags; btf__add_btf; btf__add_decl_tag; + btf__dedup; + btf__dedup_deprecated; btf__raw_data; btf__type_cnt; + btf_dump__new; + btf_dump__new_deprecated; + perf_buffer__new; + perf_buffer__new_deprecated; + perf_buffer__new_raw; + perf_buffer__new_raw_deprecated; } LIBBPF_0.5.0; diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c index f677dccdeae4..594b206fa674 100644 --- a/tools/lib/bpf/linker.c +++ b/tools/lib/bpf/linker.c @@ -2650,6 +2650,7 @@ static int emit_elf_data_sec(struct bpf_linker *linker, const char *sec_name, static int finalize_btf(struct bpf_linker *linker) { + LIBBPF_OPTS(btf_dedup_opts, opts); struct btf *btf = linker->btf; const void *raw_data; int i, j, id, err; @@ -2686,7 +2687,8 @@ static int finalize_btf(struct bpf_linker *linker) return err; } - err = btf__dedup(linker->btf, linker->btf_ext, NULL); + opts.btf_ext = linker->btf_ext; + err = btf__dedup(linker->btf, &opts); if (err) { pr_warn("BTF dedup failed: %d\n", err); return err; diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 0468ea57650d..0470802c907c 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -45,10 +45,8 @@ ifneq ($(BPF_GCC),) TEST_GEN_PROGS += test_progs-bpf_gcc endif -TEST_GEN_FILES = test_lwt_ip_encap.o \ - test_tc_edt.o -TEST_FILES = xsk_prereqs.sh \ - $(wildcard progs/btf_dump_test_case_*.c) +TEST_GEN_FILES = test_lwt_ip_encap.o test_tc_edt.o +TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) # Order correspond to 'make run_tests' order TEST_PROGS := test_kmod.sh \ @@ -107,7 +105,10 @@ endif OVERRIDE_TARGETS := 1 override define CLEAN $(call msg,CLEAN) - $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) + $(Q)$(RM) -r $(TEST_GEN_PROGS) + $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) + $(Q)$(RM) -r $(TEST_GEN_FILES) + $(Q)$(RM) -r $(EXTRA_CLEAN) $(Q)$(MAKE) -C bpf_testmod clean $(Q)$(MAKE) docs-clean endef @@ -169,7 +170,7 @@ $(OUTPUT)/%:%.c $(OUTPUT)/urandom_read: urandom_read.c $(call msg,BINARY,,$@) - $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1 + $(Q)$(CC) $(LDFLAGS) $< $(LDLIBS) -Wl,--build-id=sha1 -o $@ $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) $(call msg,MOD,,$@) @@ -232,16 +233,16 @@ docs-clean: prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ - ../../../include/uapi/linux/bpf.h \ + $(APIDIR)/linux/bpf.h \ | $(BUILD_DIR)/libbpf $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ EXTRA_CFLAGS='-g -O0' \ DESTDIR=$(SCRATCH_DIR) prefix= all install_headers ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) -$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ - ../../../include/uapi/linux/bpf.h \ - | $(HOST_BUILD_DIR)/libbpf +$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ + $(APIDIR)/linux/bpf.h \ + | $(HOST_BUILD_DIR)/libbpf $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ EXTRA_CFLAGS='-g -O0' \ OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \ @@ -305,12 +306,12 @@ $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h # $3 - CFLAGS define CLANG_BPF_BUILD_RULE $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) - $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v3 + $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v3 -o $2 endef # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 define CLANG_NOALU32_BPF_BUILD_RULE $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) - $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v2 + $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v2 -o $2 endef # Build BPF object using GCC define GCC_BPF_BUILD_RULE @@ -472,13 +473,12 @@ TRUNNER_TESTS_DIR := prog_tests TRUNNER_BPF_PROGS_DIR := progs TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ network_helpers.c testing_helpers.c \ - btf_helpers.c flow_dissector_load.h + btf_helpers.c flow_dissector_load.h TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ ima_setup.sh \ $(wildcard progs/btf_dump_test_case_*.c) TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE -TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -TRUNNER_BPF_CFLAGS += -DENABLE_ATOMICS_TESTS +TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS $(eval $(call DEFINE_TEST_RUNNER,test_progs)) # Define test_progs-no_alu32 test runner. @@ -540,7 +540,7 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \ $(OUTPUT)/bench_ringbufs.o \ $(OUTPUT)/bench_bloom_filter_map.o $(call msg,BINARY,,$@) - $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS) + $(Q)$(CC) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ prog_tests/tests.h map_tests/tests.h verifier/tests.h \ diff --git a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c index d167bffac679..52d4a2f91dbd 100644 --- a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c +++ b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c @@ -394,11 +394,6 @@ static void perfbuf_libbpf_setup() { struct perfbuf_libbpf_ctx *ctx = &perfbuf_libbpf_ctx; struct perf_event_attr attr; - struct perf_buffer_raw_opts pb_opts = { - .event_cb = perfbuf_process_sample_raw, - .ctx = (void *)(long)0, - .attr = &attr, - }; struct bpf_link *link; ctx->skel = perfbuf_setup_skeleton(); @@ -423,7 +418,8 @@ static void perfbuf_libbpf_setup() } ctx->perfbuf = perf_buffer__new_raw(bpf_map__fd(ctx->skel->maps.perfbuf), - args.perfbuf_sz, &pb_opts); + args.perfbuf_sz, &attr, + perfbuf_process_sample_raw, NULL, NULL); if (!ctx->perfbuf) { fprintf(stderr, "failed to create perfbuf\n"); exit(1); diff --git a/tools/testing/selftests/bpf/btf_helpers.c b/tools/testing/selftests/bpf/btf_helpers.c index 3d1a748d09d8..acb59202486d 100644 --- a/tools/testing/selftests/bpf/btf_helpers.c +++ b/tools/testing/selftests/bpf/btf_helpers.c @@ -238,7 +238,6 @@ const char *btf_type_c_dump(const struct btf *btf) static char buf[16 * 1024]; FILE *buf_file; struct btf_dump *d = NULL; - struct btf_dump_opts opts = {}; int err, i; buf_file = fmemopen(buf, sizeof(buf) - 1, "w"); @@ -247,8 +246,7 @@ const char *btf_type_c_dump(const struct btf *btf) return NULL; } - opts.ctx = buf_file; - d = btf_dump__new(btf, NULL, &opts, btf_dump_printf); + d = btf_dump__new(btf, btf_dump_printf, buf_file, NULL); if (libbpf_get_error(d)) { fprintf(stderr, "Failed to create btf_dump instance: %ld\n", libbpf_get_error(d)); goto err_out; diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c index ebd1aa4d09d6..1e8b36d74df2 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf.c +++ b/tools/testing/selftests/bpf/prog_tests/btf.c @@ -6627,7 +6627,7 @@ struct btf_dedup_test { struct btf_dedup_opts opts; }; -const struct btf_dedup_test dedup_tests[] = { +static struct btf_dedup_test dedup_tests[] = { { .descr = "dedup: unused strings filtering", @@ -6647,9 +6647,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0int\0long"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: strings deduplication", @@ -6672,9 +6669,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0int\0long int"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: struct example #1", @@ -6755,9 +6749,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0a\0b\0c\0d\0int\0float\0next\0s"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: struct <-> fwd resolution w/ hash collision", @@ -6800,8 +6791,7 @@ const struct btf_dedup_test dedup_tests[] = { BTF_STR_SEC("\0s\0x"), }, .opts = { - .dont_resolve_fwds = false, - .dedup_table_size = 1, /* force hash collisions */ + .force_collisions = true, /* force hash collisions */ }, }, { @@ -6847,8 +6837,7 @@ const struct btf_dedup_test dedup_tests[] = { BTF_STR_SEC("\0s\0x"), }, .opts = { - .dont_resolve_fwds = false, - .dedup_table_size = 1, /* force hash collisions */ + .force_collisions = true, /* force hash collisions */ }, }, { @@ -6911,9 +6900,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: no int/float duplicates", @@ -6965,9 +6951,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0int\0some other int\0float"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: enum fwd resolution", @@ -7009,9 +6992,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: datasec and vars pass-through", @@ -7054,8 +7034,7 @@ const struct btf_dedup_test dedup_tests[] = { BTF_STR_SEC("\0.bss\0t"), }, .opts = { - .dont_resolve_fwds = false, - .dedup_table_size = 1 + .force_collisions = true }, }, { @@ -7099,9 +7078,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: func/func_param tags", @@ -7152,9 +7128,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: struct/struct_member tags", @@ -7200,9 +7173,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, { .descr = "dedup: typedef tags", @@ -7233,9 +7203,6 @@ const struct btf_dedup_test dedup_tests[] = { }, BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"), }, - .opts = { - .dont_resolve_fwds = false, - }, }, }; @@ -7293,7 +7260,7 @@ static void dump_btf_strings(const char *strs, __u32 len) static void do_test_dedup(unsigned int test_num) { - const struct btf_dedup_test *test = &dedup_tests[test_num - 1]; + struct btf_dedup_test *test = &dedup_tests[test_num - 1]; __u32 test_nr_types, expect_nr_types, test_btf_size, expect_btf_size; const struct btf_header *test_hdr, *expect_hdr; struct btf *test_btf = NULL, *expect_btf = NULL; @@ -7337,7 +7304,8 @@ static void do_test_dedup(unsigned int test_num) goto done; } - err = btf__dedup(test_btf, NULL, &test->opts); + test->opts.sz = sizeof(test->opts); + err = btf__dedup(test_btf, &test->opts); if (CHECK(err, "btf_dedup failed errno:%d", err)) { err = -1; goto done; diff --git a/tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c b/tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c index 64554fd33547..9d3b8d7a1537 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c +++ b/tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c @@ -92,7 +92,7 @@ struct s2 {\n\ int *f3;\n\ };\n\n", "c_dump"); - err = btf__dedup(btf2, NULL, NULL); + err = btf__dedup(btf2, NULL); if (!ASSERT_OK(err, "btf_dedup")) goto cleanup; @@ -186,7 +186,7 @@ static void test_split_fwd_resolve() { "\t'f1' type_id=7 bits_offset=0\n" "\t'f2' type_id=9 bits_offset=64"); - err = btf__dedup(btf2, NULL, NULL); + err = btf__dedup(btf2, NULL); if (!ASSERT_OK(err, "btf_dedup")) goto cleanup; @@ -283,7 +283,7 @@ static void test_split_struct_duped() { "[13] STRUCT 's3' size=8 vlen=1\n" "\t'f1' type_id=12 bits_offset=0"); - err = btf__dedup(btf2, NULL, NULL); + err = btf__dedup(btf2, NULL); if (!ASSERT_OK(err, "btf_dedup")) goto cleanup; diff --git a/tools/testing/selftests/bpf/prog_tests/btf_dump.c b/tools/testing/selftests/bpf/prog_tests/btf_dump.c index a04961942dfa..d6272013a5a3 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf_dump.c +++ b/tools/testing/selftests/bpf/prog_tests/btf_dump.c @@ -13,25 +13,23 @@ static struct btf_dump_test_case { const char *name; const char *file; bool known_ptr_sz; - struct btf_dump_opts opts; } btf_dump_test_cases[] = { - {"btf_dump: syntax", "btf_dump_test_case_syntax", true, {}}, - {"btf_dump: ordering", "btf_dump_test_case_ordering", false, {}}, - {"btf_dump: padding", "btf_dump_test_case_padding", true, {}}, - {"btf_dump: packing", "btf_dump_test_case_packing", true, {}}, - {"btf_dump: bitfields", "btf_dump_test_case_bitfields", true, {}}, - {"btf_dump: multidim", "btf_dump_test_case_multidim", false, {}}, - {"btf_dump: namespacing", "btf_dump_test_case_namespacing", false, {}}, + {"btf_dump: syntax", "btf_dump_test_case_syntax", true}, + {"btf_dump: ordering", "btf_dump_test_case_ordering", false}, + {"btf_dump: padding", "btf_dump_test_case_padding", true}, + {"btf_dump: packing", "btf_dump_test_case_packing", true}, + {"btf_dump: bitfields", "btf_dump_test_case_bitfields", true}, + {"btf_dump: multidim", "btf_dump_test_case_multidim", false}, + {"btf_dump: namespacing", "btf_dump_test_case_namespacing", false}, }; -static int btf_dump_all_types(const struct btf *btf, - const struct btf_dump_opts *opts) +static int btf_dump_all_types(const struct btf *btf, void *ctx) { size_t type_cnt = btf__type_cnt(btf); struct btf_dump *d; int err = 0, id; - d = btf_dump__new(btf, NULL, opts, btf_dump_printf); + d = btf_dump__new(btf, btf_dump_printf, ctx, NULL); err = libbpf_get_error(d); if (err) return err; @@ -88,8 +86,7 @@ static int test_btf_dump_case(int n, struct btf_dump_test_case *t) goto done; } - t->opts.ctx = f; - err = btf_dump_all_types(btf, &t->opts); + err = btf_dump_all_types(btf, f); fclose(f); close(fd); if (CHECK(err, "btf_dump", "failure during C dumping: %d\n", err)) { @@ -137,7 +134,6 @@ static void test_btf_dump_incremental(void) { struct btf *btf = NULL; struct btf_dump *d = NULL; - struct btf_dump_opts opts; int id, err, i; dump_buf_file = open_memstream(&dump_buf, &dump_buf_sz); @@ -146,8 +142,7 @@ static void test_btf_dump_incremental(void) btf = btf__new_empty(); if (!ASSERT_OK_PTR(btf, "new_empty")) goto err_out; - opts.ctx = dump_buf_file; - d = btf_dump__new(btf, NULL, &opts, btf_dump_printf); + d = btf_dump__new(btf, btf_dump_printf, dump_buf_file, NULL); if (!ASSERT_OK(libbpf_get_error(d), "btf_dump__new")) goto err_out; @@ -815,7 +810,6 @@ static void test_btf_datasec(struct btf *btf, struct btf_dump *d, char *str, static void test_btf_dump_datasec_data(char *str) { struct btf *btf; - struct btf_dump_opts opts = { .ctx = str }; char license[4] = "GPL"; struct btf_dump *d; @@ -823,7 +817,7 @@ static void test_btf_dump_datasec_data(char *str) if (!ASSERT_OK_PTR(btf, "xdping_kern.o BTF not found")) return; - d = btf_dump__new(btf, NULL, &opts, btf_dump_snprintf); + d = btf_dump__new(btf, btf_dump_snprintf, str, NULL); if (!ASSERT_OK_PTR(d, "could not create BTF dump")) goto out; @@ -837,7 +831,6 @@ out: void test_btf_dump() { char str[STRSIZE]; - struct btf_dump_opts opts = { .ctx = str }; struct btf_dump *d; struct btf *btf; int i; @@ -857,7 +850,7 @@ void test_btf_dump() { if (!ASSERT_OK_PTR(btf, "no kernel BTF found")) return; - d = btf_dump__new(btf, NULL, &opts, btf_dump_snprintf); + d = btf_dump__new(btf, btf_dump_snprintf, str, NULL); if (!ASSERT_OK_PTR(d, "could not create BTF dump")) return; diff --git a/tools/testing/selftests/bpf/prog_tests/btf_split.c b/tools/testing/selftests/bpf/prog_tests/btf_split.c index b1ffe61f2aa9..eef1158676ed 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf_split.c +++ b/tools/testing/selftests/bpf/prog_tests/btf_split.c @@ -13,7 +13,6 @@ static void btf_dump_printf(void *ctx, const char *fmt, va_list args) } void test_btf_split() { - struct btf_dump_opts opts; struct btf_dump *d = NULL; const struct btf_type *t; struct btf *btf1, *btf2; @@ -68,8 +67,7 @@ void test_btf_split() { dump_buf_file = open_memstream(&dump_buf, &dump_buf_sz); if (!ASSERT_OK_PTR(dump_buf_file, "dump_memstream")) return; - opts.ctx = dump_buf_file; - d = btf_dump__new(btf2, NULL, &opts, btf_dump_printf); + d = btf_dump__new(btf2, btf_dump_printf, dump_buf_file, NULL); if (!ASSERT_OK_PTR(d, "btf_dump__new")) goto cleanup; for (i = 1; i < btf__type_cnt(btf2); i++) { diff --git a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c index 569fcc6ed660..4184c399d4c6 100644 --- a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c +++ b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c @@ -85,7 +85,6 @@ void test_get_stack_raw_tp(void) const char *file_err = "./test_get_stack_rawtp_err.o"; const char *prog_name = "raw_tracepoint/sys_enter"; int i, err, prog_fd, exp_cnt = MAX_CNT_RAWTP; - struct perf_buffer_opts pb_opts = {}; struct perf_buffer *pb = NULL; struct bpf_link *link = NULL; struct timespec tv = {0, 10}; @@ -124,8 +123,8 @@ void test_get_stack_raw_tp(void) if (!ASSERT_OK_PTR(link, "attach_raw_tp")) goto close_prog; - pb_opts.sample_cb = get_stack_print_output; - pb = perf_buffer__new(bpf_map__fd(map), 8, &pb_opts); + pb = perf_buffer__new(bpf_map__fd(map), 8, get_stack_print_output, + NULL, NULL, NULL); if (!ASSERT_OK_PTR(pb, "perf_buf__new")) goto close_prog; diff --git a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c index 885413ed5c96..2a49f8fcde06 100644 --- a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c +++ b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c @@ -66,7 +66,6 @@ void serial_test_kfree_skb(void) struct bpf_map *perf_buf_map, *global_data; struct bpf_program *prog, *fentry, *fexit; struct bpf_object *obj, *obj2 = NULL; - struct perf_buffer_opts pb_opts = {}; struct perf_buffer *pb = NULL; int err, kfree_skb_fd; bool passed = false; @@ -112,9 +111,8 @@ void serial_test_kfree_skb(void) goto close_prog; /* set up perf buffer */ - pb_opts.sample_cb = on_sample; - pb_opts.ctx = &passed; - pb = perf_buffer__new(bpf_map__fd(perf_buf_map), 1, &pb_opts); + pb = perf_buffer__new(bpf_map__fd(perf_buf_map), 1, + on_sample, NULL, &passed, NULL); if (!ASSERT_OK_PTR(pb, "perf_buf__new")) goto close_prog; diff --git a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c index 4e32f3586a75..5fc2b3a0711e 100644 --- a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c +++ b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c @@ -47,7 +47,6 @@ void serial_test_perf_buffer(void) { int err, on_len, nr_on_cpus = 0, nr_cpus, i, j; int zero = 0, my_pid = getpid(); - struct perf_buffer_opts pb_opts = {}; struct test_perf_buffer *skel; cpu_set_t cpu_seen; struct perf_buffer *pb; @@ -82,9 +81,8 @@ void serial_test_perf_buffer(void) goto out_close; /* set up perf buffer */ - pb_opts.sample_cb = on_sample; - pb_opts.ctx = &cpu_seen; - pb = perf_buffer__new(bpf_map__fd(skel->maps.perf_buf_map), 1, &pb_opts); + pb = perf_buffer__new(bpf_map__fd(skel->maps.perf_buf_map), 1, + on_sample, NULL, &cpu_seen, NULL); if (!ASSERT_OK_PTR(pb, "perf_buf__new")) goto out_close; diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c index 3bd5904b4db5..f99386d1dc4c 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c @@ -49,7 +49,6 @@ void test_xdp_bpf2bpf(void) struct vip key4 = {.protocol = 6, .family = AF_INET}; struct bpf_program *prog; struct perf_buffer *pb = NULL; - struct perf_buffer_opts pb_opts = {}; /* Load XDP program to introspect */ pkt_skel = test_xdp__open_and_load(); @@ -86,10 +85,8 @@ void test_xdp_bpf2bpf(void) goto out; /* Set up perf buffer */ - pb_opts.sample_cb = on_sample; - pb_opts.ctx = &passed; - pb = perf_buffer__new(bpf_map__fd(ftrace_skel->maps.perf_buf_map), - 1, &pb_opts); + pb = perf_buffer__new(bpf_map__fd(ftrace_skel->maps.perf_buf_map), 1, + on_sample, NULL, &passed, NULL); if (!ASSERT_OK_PTR(pb, "perf_buf__new")) goto out; diff --git a/tools/testing/selftests/bpf/test_tcpnotify_user.c b/tools/testing/selftests/bpf/test_tcpnotify_user.c index 63111cb082fe..4c5114765b23 100644 --- a/tools/testing/selftests/bpf/test_tcpnotify_user.c +++ b/tools/testing/selftests/bpf/test_tcpnotify_user.c @@ -72,7 +72,6 @@ int main(int argc, char **argv) { const char *file = "test_tcpnotify_kern.o"; struct bpf_map *perf_map, *global_map; - struct perf_buffer_opts pb_opts = {}; struct tcpnotify_globals g = {0}; struct perf_buffer *pb = NULL; const char *cg_path = "/foo"; @@ -117,8 +116,7 @@ int main(int argc, char **argv) return -1; } - pb_opts.sample_cb = dummyfn; - pb = perf_buffer__new(bpf_map__fd(perf_map), 8, &pb_opts); + pb = perf_buffer__new(bpf_map__fd(perf_map), 8, dummyfn, NULL, NULL, NULL); if (!pb) goto err; |