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-rw-r--r--tools/bpf/bpftool/btf.c2
-rw-r--r--tools/bpf/bpftool/cgroup.c6
-rw-r--r--tools/bpf/bpftool/common.c44
-rw-r--r--tools/bpf/bpftool/gen.c14
-rw-r--r--tools/bpf/bpftool/link.c3
-rw-r--r--tools/bpf/bpftool/main.c9
-rw-r--r--tools/bpf/bpftool/main.h4
-rw-r--r--tools/bpf/bpftool/map.c2
-rw-r--r--tools/bpf/bpftool/net.c2
-rw-r--r--tools/bpf/bpftool/pids.c3
-rw-r--r--tools/bpf/bpftool/prog.c30
-rw-r--r--tools/bpf/bpftool/struct_ops.c4
-rw-r--r--tools/bpf/resolve_btfids/Makefile6
13 files changed, 98 insertions, 31 deletions
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 59833125ac0a..a2c665beda87 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -902,7 +902,7 @@ static int do_show(int argc, char **argv)
equal_fn_for_key_as_id, NULL);
btf_map_table = hashmap__new(hash_fn_for_key_as_id,
equal_fn_for_key_as_id, NULL);
- if (!btf_prog_table || !btf_map_table) {
+ if (IS_ERR(btf_prog_table) || IS_ERR(btf_map_table)) {
hashmap__free(btf_prog_table);
hashmap__free(btf_map_table);
if (fd >= 0)
diff --git a/tools/bpf/bpftool/cgroup.c b/tools/bpf/bpftool/cgroup.c
index 3571a281c43f..effe136119d7 100644
--- a/tools/bpf/bpftool/cgroup.c
+++ b/tools/bpf/bpftool/cgroup.c
@@ -50,6 +50,7 @@ static int show_bpf_prog(int id, enum bpf_attach_type attach_type,
const char *attach_flags_str,
int level)
{
+ char prog_name[MAX_PROG_FULL_NAME];
struct bpf_prog_info info = {};
__u32 info_len = sizeof(info);
int prog_fd;
@@ -63,6 +64,7 @@ static int show_bpf_prog(int id, enum bpf_attach_type attach_type,
return -1;
}
+ get_prog_full_name(&info, prog_fd, prog_name, sizeof(prog_name));
if (json_output) {
jsonw_start_object(json_wtr);
jsonw_uint_field(json_wtr, "id", info.id);
@@ -73,7 +75,7 @@ static int show_bpf_prog(int id, enum bpf_attach_type attach_type,
jsonw_uint_field(json_wtr, "attach_type", attach_type);
jsonw_string_field(json_wtr, "attach_flags",
attach_flags_str);
- jsonw_string_field(json_wtr, "name", info.name);
+ jsonw_string_field(json_wtr, "name", prog_name);
jsonw_end_object(json_wtr);
} else {
printf("%s%-8u ", level ? " " : "", info.id);
@@ -81,7 +83,7 @@ static int show_bpf_prog(int id, enum bpf_attach_type attach_type,
printf("%-15s", attach_type_name[attach_type]);
else
printf("type %-10u", attach_type);
- printf(" %-15s %-15s\n", attach_flags_str, info.name);
+ printf(" %-15s %-15s\n", attach_flags_str, prog_name);
}
close(prog_fd);
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index fa8eb8134344..111dff809c7b 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -24,6 +24,7 @@
#include <bpf/bpf.h>
#include <bpf/hashmap.h>
#include <bpf/libbpf.h> /* libbpf_num_possible_cpus */
+#include <bpf/btf.h>
#include "main.h"
@@ -304,6 +305,49 @@ const char *get_fd_type_name(enum bpf_obj_type type)
return names[type];
}
+void get_prog_full_name(const struct bpf_prog_info *prog_info, int prog_fd,
+ char *name_buff, size_t buff_len)
+{
+ const char *prog_name = prog_info->name;
+ const struct btf_type *func_type;
+ const struct bpf_func_info finfo;
+ struct bpf_prog_info info = {};
+ __u32 info_len = sizeof(info);
+ struct btf *prog_btf = NULL;
+
+ if (buff_len <= BPF_OBJ_NAME_LEN ||
+ strlen(prog_info->name) < BPF_OBJ_NAME_LEN - 1)
+ goto copy_name;
+
+ if (!prog_info->btf_id || prog_info->nr_func_info == 0)
+ goto copy_name;
+
+ info.nr_func_info = 1;
+ info.func_info_rec_size = prog_info->func_info_rec_size;
+ if (info.func_info_rec_size > sizeof(finfo))
+ info.func_info_rec_size = sizeof(finfo);
+ info.func_info = ptr_to_u64(&finfo);
+
+ if (bpf_obj_get_info_by_fd(prog_fd, &info, &info_len))
+ goto copy_name;
+
+ prog_btf = btf__load_from_kernel_by_id(info.btf_id);
+ if (!prog_btf)
+ goto copy_name;
+
+ func_type = btf__type_by_id(prog_btf, finfo.type_id);
+ if (!func_type || !btf_is_func(func_type))
+ goto copy_name;
+
+ prog_name = btf__name_by_offset(prog_btf, func_type->name_off);
+
+copy_name:
+ snprintf(name_buff, buff_len, "%s", prog_name);
+
+ if (prog_btf)
+ btf__free(prog_btf);
+}
+
int get_fd_type(int fd)
{
char path[PATH_MAX];
diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c
index b4695df2ea3d..43e3f8700ecc 100644
--- a/tools/bpf/bpftool/gen.c
+++ b/tools/bpf/bpftool/gen.c
@@ -227,7 +227,7 @@ static int codegen_datasecs(struct bpf_object *obj, const char *obj_name)
/* only generate definitions for memory-mapped internal maps */
if (!bpf_map__is_internal(map))
continue;
- if (!(bpf_map__def(map)->map_flags & BPF_F_MMAPABLE))
+ if (!(bpf_map__map_flags(map) & BPF_F_MMAPABLE))
continue;
if (!get_map_ident(map, map_ident, sizeof(map_ident)))
@@ -468,7 +468,7 @@ static void codegen_destroy(struct bpf_object *obj, const char *obj_name)
if (!get_map_ident(map, ident, sizeof(ident)))
continue;
if (bpf_map__is_internal(map) &&
- (bpf_map__def(map)->map_flags & BPF_F_MMAPABLE))
+ (bpf_map__map_flags(map) & BPF_F_MMAPABLE))
printf("\tmunmap(skel->%1$s, %2$zd);\n",
ident, bpf_map_mmap_sz(map));
codegen("\
@@ -536,7 +536,7 @@ static int gen_trace(struct bpf_object *obj, const char *obj_name, const char *h
continue;
if (!bpf_map__is_internal(map) ||
- !(bpf_map__def(map)->map_flags & BPF_F_MMAPABLE))
+ !(bpf_map__map_flags(map) & BPF_F_MMAPABLE))
continue;
codegen("\
@@ -600,10 +600,10 @@ static int gen_trace(struct bpf_object *obj, const char *obj_name, const char *h
continue;
if (!bpf_map__is_internal(map) ||
- !(bpf_map__def(map)->map_flags & BPF_F_MMAPABLE))
+ !(bpf_map__map_flags(map) & BPF_F_MMAPABLE))
continue;
- if (bpf_map__def(map)->map_flags & BPF_F_RDONLY_PROG)
+ if (bpf_map__map_flags(map) & BPF_F_RDONLY_PROG)
mmap_flags = "PROT_READ";
else
mmap_flags = "PROT_READ | PROT_WRITE";
@@ -927,7 +927,6 @@ static int do_skeleton(int argc, char **argv)
s = (struct bpf_object_skeleton *)calloc(1, sizeof(*s));\n\
if (!s) \n\
goto err; \n\
- obj->skeleton = s; \n\
\n\
s->sz = sizeof(*s); \n\
s->name = \"%1$s\"; \n\
@@ -962,7 +961,7 @@ static int do_skeleton(int argc, char **argv)
i, bpf_map__name(map), i, ident);
/* memory-mapped internal maps */
if (bpf_map__is_internal(map) &&
- (bpf_map__def(map)->map_flags & BPF_F_MMAPABLE)) {
+ (bpf_map__map_flags(map) & BPF_F_MMAPABLE)) {
printf("\ts->maps[%zu].mmaped = (void **)&obj->%s;\n",
i, ident);
}
@@ -1000,6 +999,7 @@ static int do_skeleton(int argc, char **argv)
\n\
s->data = (void *)%2$s__elf_bytes(&s->data_sz); \n\
\n\
+ obj->skeleton = s; \n\
return 0; \n\
err: \n\
bpf_object__destroy_skeleton(s); \n\
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index 2c258db0d352..97dec81950e5 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -2,6 +2,7 @@
/* Copyright (C) 2020 Facebook */
#include <errno.h>
+#include <linux/err.h>
#include <net/if.h>
#include <stdio.h>
#include <unistd.h>
@@ -306,7 +307,7 @@ static int do_show(int argc, char **argv)
if (show_pinned) {
link_table = hashmap__new(hash_fn_for_key_as_id,
equal_fn_for_key_as_id, NULL);
- if (!link_table) {
+ if (IS_ERR(link_table)) {
p_err("failed to create hashmap for pinned paths");
return -1;
}
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 020e91a542d5..9d01fa9de033 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -478,7 +478,14 @@ int main(int argc, char **argv)
}
if (!legacy_libbpf) {
- ret = libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+ enum libbpf_strict_mode mode;
+
+ /* Allow legacy map definitions for skeleton generation.
+ * It will still be rejected if users use LIBBPF_STRICT_ALL
+ * mode for loading generated skeleton.
+ */
+ mode = (__LIBBPF_STRICT_LAST - 1) & ~LIBBPF_STRICT_MAP_DEFINITIONS;
+ ret = libbpf_set_strict_mode(mode);
if (ret)
p_err("failed to enable libbpf strict mode: %d", ret);
}
diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h
index 8d76d937a62b..0c3840596b5a 100644
--- a/tools/bpf/bpftool/main.h
+++ b/tools/bpf/bpftool/main.h
@@ -140,6 +140,10 @@ struct cmd {
int cmd_select(const struct cmd *cmds, int argc, char **argv,
int (*help)(int argc, char **argv));
+#define MAX_PROG_FULL_NAME 128
+void get_prog_full_name(const struct bpf_prog_info *prog_info, int prog_fd,
+ char *name_buff, size_t buff_len);
+
int get_fd_type(int fd);
const char *get_fd_type_name(enum bpf_obj_type type);
char *get_fdinfo(int fd, const char *key);
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index cc530a229812..c66a3c979b7a 100644
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -699,7 +699,7 @@ static int do_show(int argc, char **argv)
if (show_pinned) {
map_table = hashmap__new(hash_fn_for_key_as_id,
equal_fn_for_key_as_id, NULL);
- if (!map_table) {
+ if (IS_ERR(map_table)) {
p_err("failed to create hashmap for pinned paths");
return -1;
}
diff --git a/tools/bpf/bpftool/net.c b/tools/bpf/bpftool/net.c
index 649053704bd7..526a332c48e6 100644
--- a/tools/bpf/bpftool/net.c
+++ b/tools/bpf/bpftool/net.c
@@ -551,7 +551,7 @@ static int do_attach_detach_xdp(int progfd, enum net_attach_type attach_type,
if (attach_type == NET_ATTACH_TYPE_XDP_OFFLOAD)
flags |= XDP_FLAGS_HW_MODE;
- return bpf_set_link_xdp_fd(ifindex, progfd, flags);
+ return bpf_xdp_attach(ifindex, progfd, flags, NULL);
}
static int do_attach(int argc, char **argv)
diff --git a/tools/bpf/bpftool/pids.c b/tools/bpf/bpftool/pids.c
index 56b598eee043..7c384d10e95f 100644
--- a/tools/bpf/bpftool/pids.c
+++ b/tools/bpf/bpftool/pids.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (C) 2020 Facebook */
#include <errno.h>
+#include <linux/err.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
@@ -101,7 +102,7 @@ int build_obj_refs_table(struct hashmap **map, enum bpf_obj_type type)
libbpf_print_fn_t default_print;
*map = hashmap__new(hash_fn_for_key_as_id, equal_fn_for_key_as_id, NULL);
- if (!*map) {
+ if (IS_ERR(*map)) {
p_err("failed to create hashmap for PID references");
return -1;
}
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index 2a21d50516bc..cf935c63e6f5 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -424,8 +424,10 @@ out_free:
free(value);
}
-static void print_prog_header_json(struct bpf_prog_info *info)
+static void print_prog_header_json(struct bpf_prog_info *info, int fd)
{
+ char prog_name[MAX_PROG_FULL_NAME];
+
jsonw_uint_field(json_wtr, "id", info->id);
if (info->type < ARRAY_SIZE(prog_type_name))
jsonw_string_field(json_wtr, "type",
@@ -433,8 +435,10 @@ static void print_prog_header_json(struct bpf_prog_info *info)
else
jsonw_uint_field(json_wtr, "type", info->type);
- if (*info->name)
- jsonw_string_field(json_wtr, "name", info->name);
+ if (*info->name) {
+ get_prog_full_name(info, fd, prog_name, sizeof(prog_name));
+ jsonw_string_field(json_wtr, "name", prog_name);
+ }
jsonw_name(json_wtr, "tag");
jsonw_printf(json_wtr, "\"" BPF_TAG_FMT "\"",
@@ -455,7 +459,7 @@ static void print_prog_json(struct bpf_prog_info *info, int fd)
char *memlock;
jsonw_start_object(json_wtr);
- print_prog_header_json(info);
+ print_prog_header_json(info, fd);
print_dev_json(info->ifindex, info->netns_dev, info->netns_ino);
if (info->load_time) {
@@ -507,16 +511,20 @@ static void print_prog_json(struct bpf_prog_info *info, int fd)
jsonw_end_object(json_wtr);
}
-static void print_prog_header_plain(struct bpf_prog_info *info)
+static void print_prog_header_plain(struct bpf_prog_info *info, int fd)
{
+ char prog_name[MAX_PROG_FULL_NAME];
+
printf("%u: ", info->id);
if (info->type < ARRAY_SIZE(prog_type_name))
printf("%s ", prog_type_name[info->type]);
else
printf("type %u ", info->type);
- if (*info->name)
- printf("name %s ", info->name);
+ if (*info->name) {
+ get_prog_full_name(info, fd, prog_name, sizeof(prog_name));
+ printf("name %s ", prog_name);
+ }
printf("tag ");
fprint_hex(stdout, info->tag, BPF_TAG_SIZE, "");
@@ -534,7 +542,7 @@ static void print_prog_plain(struct bpf_prog_info *info, int fd)
{
char *memlock;
- print_prog_header_plain(info);
+ print_prog_header_plain(info, fd);
if (info->load_time) {
char buf[32];
@@ -641,7 +649,7 @@ static int do_show(int argc, char **argv)
if (show_pinned) {
prog_table = hashmap__new(hash_fn_for_key_as_id,
equal_fn_for_key_as_id, NULL);
- if (!prog_table) {
+ if (IS_ERR(prog_table)) {
p_err("failed to create hashmap for pinned paths");
return -1;
}
@@ -972,10 +980,10 @@ static int do_dump(int argc, char **argv)
if (json_output && nb_fds > 1) {
jsonw_start_object(json_wtr); /* prog object */
- print_prog_header_json(&info);
+ print_prog_header_json(&info, fds[i]);
jsonw_name(json_wtr, "insns");
} else if (nb_fds > 1) {
- print_prog_header_plain(&info);
+ print_prog_header_plain(&info, fds[i]);
}
err = prog_dump(&info, mode, filepath, opcodes, visual, linum);
diff --git a/tools/bpf/bpftool/struct_ops.c b/tools/bpf/bpftool/struct_ops.c
index 2f693b082bdb..e08a6ff2866c 100644
--- a/tools/bpf/bpftool/struct_ops.c
+++ b/tools/bpf/bpftool/struct_ops.c
@@ -480,7 +480,6 @@ static int do_unregister(int argc, char **argv)
static int do_register(int argc, char **argv)
{
LIBBPF_OPTS(bpf_object_open_opts, open_opts);
- const struct bpf_map_def *def;
struct bpf_map_info info = {};
__u32 info_len = sizeof(info);
int nr_errs = 0, nr_maps = 0;
@@ -510,8 +509,7 @@ static int do_register(int argc, char **argv)
}
bpf_object__for_each_map(map, obj) {
- def = bpf_map__def(map);
- if (def->type != BPF_MAP_TYPE_STRUCT_OPS)
+ if (bpf_map__type(map) != BPF_MAP_TYPE_STRUCT_OPS)
continue;
link = bpf_map__attach_struct_ops(map);
diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile
index 9ddeca947635..a7f87cdf11da 100644
--- a/tools/bpf/resolve_btfids/Makefile
+++ b/tools/bpf/resolve_btfids/Makefile
@@ -20,6 +20,8 @@ LD = $(HOSTLD)
ARCH = $(HOSTARCH)
RM ?= rm
CROSS_COMPILE =
+CFLAGS := $(KBUILD_HOSTCFLAGS)
+LDFLAGS := $(KBUILD_HOSTLDFLAGS)
OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
@@ -47,10 +49,10 @@ $(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd
$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OUT)
$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(LIBBPF_OUT) \
- DESTDIR=$(LIBBPF_DESTDIR) prefix= \
+ DESTDIR=$(LIBBPF_DESTDIR) prefix= EXTRA_CFLAGS="$(CFLAGS)" \
$(abspath $@) install_headers
-CFLAGS := -g \
+CFLAGS += -g \
-I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi \
-I$(LIBBPF_INCLUDE) \
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-15 16:45:20 +0000