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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
commit01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch)
treeb406c5242a088c4f59c6e4b719b783f43aca6ae9 /tools/lib/bpf/libbpf_internal.h
parentAdding upstream version 6.7.12. (diff)
downloadlinux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz
linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/lib/bpf/libbpf_internal.h')
-rw-r--r--tools/lib/bpf/libbpf_internal.h17
1 files changed, 16 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index 57dec645d6..878a0d0b51 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -569,6 +569,20 @@ static inline int ensure_good_fd(int fd)
return fd;
}
+/* Point *fixed_fd* to the same file that *tmp_fd* points to.
+ * Regardless of success, *tmp_fd* is closed.
+ * Whatever *fixed_fd* pointed to is closed silently.
+ */
+static inline int reuse_fd(int fixed_fd, int tmp_fd)
+{
+ int err;
+
+ err = dup2(tmp_fd, fixed_fd);
+ err = err < 0 ? -errno : 0;
+ close(tmp_fd); /* clean up temporary FD */
+ return err;
+}
+
/* The following two functions are exposed to bpftool */
int bpf_core_add_cands(struct bpf_core_cand *local_cand,
size_t local_essent_len,
@@ -608,7 +622,8 @@ int elf_open(const char *binary_path, struct elf_fd *elf_fd);
void elf_close(struct elf_fd *elf_fd);
int elf_resolve_syms_offsets(const char *binary_path, int cnt,
- const char **syms, unsigned long **poffsets);
+ const char **syms, unsigned long **poffsets,
+ int st_type);
int elf_resolve_pattern_offsets(const char *binary_path, const char *pattern,
unsigned long **poffsets, size_t *pcnt);