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tools: libbpf: add bpf_object__find_program_by_title() 

Allow users to find programs by section names.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2018-07-26 14:32:19 -07:00 committed by Daniel Borkmann
parent 1e960043e8
commit 6d4b198b0b
2 changed files with 15 additions and 0 deletions
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12
tools/lib/bpf/libbpf.c
View File

@ -873,6 +873,18 @@ bpf_object__find_prog_by_idx(struct bpf_object *obj, int idx)
return NULL; return NULL;
} }
struct bpf_program *
bpf_object__find_program_by_title(struct bpf_object *obj, const char *title)
{
struct bpf_program *pos;
bpf_object__for_each_program(pos, obj) {
if (pos->section_name && !strcmp(pos->section_name, title))
return pos;
}
return NULL;
}
static int static int
bpf_program__collect_reloc(struct bpf_program *prog, GElf_Shdr *shdr, bpf_program__collect_reloc(struct bpf_program *prog, GElf_Shdr *shdr,
Elf_Data *data, struct bpf_object *obj) Elf_Data *data, struct bpf_object *obj)

3
tools/lib/bpf/libbpf.h
View File

@ -86,6 +86,9 @@ const char *bpf_object__name(struct bpf_object *obj);
unsigned int bpf_object__kversion(struct bpf_object *obj); unsigned int bpf_object__kversion(struct bpf_object *obj);
int bpf_object__btf_fd(const struct bpf_object *obj); int bpf_object__btf_fd(const struct bpf_object *obj);
struct bpf_program *
bpf_object__find_program_by_title(struct bpf_object *obj, const char *title);
struct bpf_object *bpf_object__next(struct bpf_object *prev); struct bpf_object *bpf_object__next(struct bpf_object *prev);
#define bpf_object__for_each_safe(pos, tmp) \ #define bpf_object__for_each_safe(pos, tmp) \
for ((pos) = bpf_object__next(NULL), \ for ((pos) = bpf_object__next(NULL), \