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libbpf: Add elf_open/elf_close functions

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Adding elf_open/elf_close functions and using it in
elf_find_func_offset_from_file function. It will be
used in following changes to save some common code.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230809083440.3209381-10-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiri Olsa
2023-08-09 10:34:21 +02:00
committed by Alexei Starovoitov
parent 5c74272504
commit f90eb70d44
3 changed files with 57 additions and 42 deletions
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8
tools/lib/bpf/libbpf_internal.h
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@@ -581,4 +581,12 @@ int sys_bpf_prog_load(union bpf_attr *attr, unsigned int size, int attempts);
long elf_find_func_offset(Elf *elf, const char *binary_path, const char *name);
long elf_find_func_offset_from_file(const char *binary_path, const char *name);
struct elf_fd {
Elf *elf;
int fd;
};
int elf_open(const char *binary_path, struct elf_fd *elf_fd);
void elf_close(struct elf_fd *elf_fd);
#endif /* __LIBBPF_LIBBPF_INTERNAL_H */