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authorDaniel Borkmann <daniel@iogearbox.net>2019-03-01 00:53:46 +0100
committerDaniel Borkmann <daniel@iogearbox.net>2019-03-01 00:53:47 +0100
commit74b388190874ecf718e488825e9268d5ff8f2631 (patch)
treee383e81cfd7496422209c1b80375fa5eddcb99fb /tools/lib
parentebace0e981b2aa6b2c0eb9bee0df3676fd690d8b (diff)
parent771744f9dc9742dc4259eb57f3a687d1630e1159 (diff)
Merge branch 'bpf-samples-improvements'
Jakub Kicinski says: ==================== This set is next part of a quest to get rid of the bpf_load ELF loader. It fixes some minor issues with the samples and starts the conversion. First patch fixes ping invocations, ping localhost defaults to IPv6 on modern setups. Next load_sock_ops sample is removed and users are directed towards using bpftool directly. Patch 4 removes the use of bpf_load from samples which don't need the auto-attachment functionality at all. Patch 5 improves symbol counting in libbpf, it's not currently an issue but it will be when anyone adds a symbol with a long name. Let's make sure that person doesn't have to spend time scratching their head and wondering why .a and .so symbol counts don't match. v2: - specify prog_type where possible (Andrii). ==================== Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/bpf/Makefile4
-rw-r--r--tools/lib/bpf/libbpf.c8
-rw-r--r--tools/lib/bpf/libbpf.h3
3 files changed, 8 insertions, 7 deletions
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index 761691bd72ad..a05c43468bd0 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -132,9 +132,9 @@ BPF_IN := $(OUTPUT)libbpf-in.o
LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
VERSION_SCRIPT := libbpf.map
-GLOBAL_SYM_COUNT = $(shell readelf -s $(BPF_IN) | \
+GLOBAL_SYM_COUNT = $(shell readelf -s --wide $(BPF_IN) | \
awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {s++} END{print s}')
-VERSIONED_SYM_COUNT = $(shell readelf -s $(OUTPUT)libbpf.so | \
+VERSIONED_SYM_COUNT = $(shell readelf -s --wide $(OUTPUT)libbpf.so | \
grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | sort -u | wc -l)
CMD_TARGETS = $(LIB_FILE)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index b38dcbe7460a..f5eb60379c8d 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -2100,7 +2100,7 @@ int bpf_object__pin_maps(struct bpf_object *obj, const char *path)
if (err)
return err;
- bpf_map__for_each(map, obj) {
+ bpf_object__for_each_map(map, obj) {
char buf[PATH_MAX];
int len;
@@ -2147,7 +2147,7 @@ int bpf_object__unpin_maps(struct bpf_object *obj, const char *path)
if (!obj)
return -ENOENT;
- bpf_map__for_each(map, obj) {
+ bpf_object__for_each_map(map, obj) {
char buf[PATH_MAX];
int len;
@@ -2835,7 +2835,7 @@ bpf_object__find_map_by_name(struct bpf_object *obj, const char *name)
{
struct bpf_map *pos;
- bpf_map__for_each(pos, obj) {
+ bpf_object__for_each_map(pos, obj) {
if (pos->name && !strcmp(pos->name, name))
return pos;
}
@@ -2928,7 +2928,7 @@ int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr,
first_prog = prog;
}
- bpf_map__for_each(map, obj) {
+ bpf_object__for_each_map(map, obj) {
if (!bpf_map__is_offload_neutral(map))
map->map_ifindex = attr->ifindex;
}
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 6c0168f8bba5..b4652aa1a58a 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -278,10 +278,11 @@ bpf_object__find_map_by_offset(struct bpf_object *obj, size_t offset);
LIBBPF_API struct bpf_map *
bpf_map__next(struct bpf_map *map, struct bpf_object *obj);
-#define bpf_map__for_each(pos, obj) \
+#define bpf_object__for_each_map(pos, obj) \
for ((pos) = bpf_map__next(NULL, (obj)); \
(pos) != NULL; \
(pos) = bpf_map__next((pos), (obj)))
+#define bpf_map__for_each bpf_object__for_each_map
LIBBPF_API struct bpf_map *
bpf_map__prev(struct bpf_map *map, struct bpf_object *obj);