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libbpf: Stringify errno in log messages in the remaining code

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Convert numeric error codes into the string representations in log
messages in the rest of libbpf source files.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241111212919.368971-5-mykyta.yatsenko5@gmail.com
This commit is contained in:
Mykyta Yatsenko
2024-11-11 21:29:19 +00:00
committed by Andrii Nakryiko
parent da7d63a690
commit db73e46709
6 changed files with 56 additions and 53 deletions
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4
src/elf.c
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@@ -24,7 +24,6 @@
int elf_open(const char *binary_path, struct elf_fd *elf_fd)
{
char errmsg[STRERR_BUFSIZE];
int fd, ret;
Elf *elf;
@@ -38,8 +37,7 @@ int elf_open(const char *binary_path, struct elf_fd *elf_fd)
fd = open(binary_path, O_RDONLY | O_CLOEXEC);
if (fd < 0) {
ret = -errno;
pr_warn("elf: failed to open %s: %s\n", binary_path,
libbpf_strerror_r(ret, errmsg, sizeof(errmsg)));
pr_warn("elf: failed to open %s: %s\n", binary_path, errstr(ret));
return ret;
}
elf = elf_begin(fd, ELF_C_READ_MMAP, NULL);