As long as I am using CONFIG_DEBUG_INFO_BTF=y with LLVM/Clang
I have noticed the below macros where defined unconsistently.
See here pahole latest Git...
[ pahole:dwarf_loader ]
/* Match the define in linux:include/linux/elfnote.h */
#define LINUX_ELFNOTE_BUILD_LTO 0x101
...and latest Linus v6.2-rc4+ Git:
[ linux:include/linux/elfnote-lto.h ]
#define LINUX_ELFNOTE_LTO_INFO 0x101
Yonghong Song says:
> Ya, LINUX_ELFNOTE_BUILD_LTO is initially proposed macro name but later
> the formal kernel patch used LINUX_ELFNOTE_LTO_INFO. Could you submit
> a pahole for this so it is consistent with kernel? Thanks!
Fix this by syncing the pahole macro with the one from linux-kernel.
Suggested-by: Yonghong Song <yhs@xxxxxxxx>
Signed-off-by: Sedat Dilek <sedat.dilek@xxxxxxxxx>
---
dwarf_loader.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/dwarf_loader.c b/dwarf_loader.c
index 5a74035c5708..96ce5db4f5bc 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -2808,8 +2808,8 @@ static int __cus__load_debug_types(struct conf_load *conf, Dwfl_Module *mod, Dwa
return 0;
}
-/* Match the define in linux:include/linux/elfnote.h */
-#define LINUX_ELFNOTE_BUILD_LTO 0x101
+/* Match the define in linux:include/linux/elfnote-lto.h */
+#define LINUX_ELFNOTE_LTO_INFO 0x101
static bool cus__merging_cu(Dwarf *dw, Elf *elf)
{
@@ -2827,7 +2827,7 @@ static bool cus__merging_cu(Dwarf *dw, Elf *elf)
size_t name_off, desc_off, offset = 0;
GElf_Nhdr hdr;
while ((offset = gelf_getnote(data, offset, &hdr, &name_off, &desc_off)) != 0) {
- if (hdr.n_type != LINUX_ELFNOTE_BUILD_LTO)
+ if (hdr.n_type != LINUX_ELFNOTE_LTO_INFO)
continue;
/* owner is Linux */
--
2.39.0
