[PATCH v2] libbpf: Ignore exception frame section

[Tw <tw19881113@gmail.com>]

Exception handling in BPF program is not supported right now, let's skip it.
BTW, I found this when building BPF with Zig compiler[1].

[1]: https://github.com/tw4452852/bb

Signed-off-by: Tw <tw19881113@gmail.com>
---
v2:
 Revise the commit message.

 tools/lib/bpf/libbpf.c | 3 ++-
 tools/lib/bpf/linker.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index b749c0174..05727c418 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -3867,7 +3867,8 @@ static Elf64_Rel *elf_rel_by_idx(Elf_Data *data, size_t idx)
 static bool is_sec_name_dwarf(const char *name)
 {
 	/* approximation, but the actual list is too long */
-	return str_has_pfx(name, ".debug_");
+	return str_has_pfx(name, ".debug_") ||
+		   strcmp(name, ".eh_frame") == 0;
 }
 
 static bool ignore_elf_section(Elf64_Shdr *hdr, const char *name)
diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
index 78f92c392..1fb0efdbf 100644
--- a/tools/lib/bpf/linker.c
+++ b/tools/lib/bpf/linker.c
@@ -599,7 +599,8 @@ int bpf_linker__add_buf(struct bpf_linker *linker, void *buf, size_t buf_sz,
 static bool is_dwarf_sec_name(const char *name)
 {
 	/* approximation, but the actual list is too long */
-	return strncmp(name, ".debug_", sizeof(".debug_") - 1) == 0;
+	return strncmp(name, ".debug_", sizeof(".debug_") - 1) == 0 ||
+		   strcmp(name, ".eh_frame") == 0;
 }
 
 static bool is_ignored_sec(struct src_sec *sec)
-- 
2.54.0