pahole: New version 1.25 release?

[Sedat Dilek <sedat.dilek@xxxxxxxxx>]

Hi Arnaldo,

I use CONFIG_DEBUG_INFO_BTF=y with LLVM-15.

Darkly, I remember I needed some post-v1.24 fixes.

Currently, I use:

$ git describe
v1.24-26-gb72f5188856d

commit b72f5188856d
"dwarves: Zero-initialize struct cu in cu__new() to prevent incorrect BTF types"

Any plans to release a pahole version 1.25?

Thanks.

Best regards,
-Sedat-

P.S.: I still carry this diff around (attached as diff as Gmail might
truncate the following lines):

$ cd /path/to/pahole.git

$ git diff dwarf_loader.c
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 */

$ cd /path/to/linux.git

$ git describe
v6.2-rc4-77-gd368967cb103

$ git grep LINUX_ELFNOTE_LTO_INFO include/linux/elfnote-lto.h
include/linux/elfnote-lto.h:#define LINUX_ELFNOTE_LTO_INFO      0x101
include/linux/elfnote-lto.h:#define BUILD_LTO_INFO
ELFNOTE32("Linux", LINUX_ELFNOTE_LTO_INFO, 1)
include/linux/elfnote-lto.h:#define BUILD_LTO_INFO
ELFNOTE32("Linux", LINUX_ELFNOTE_LTO_INFO, 0)
dileks@iniza:~/src/linux/git$ git describe
v6.2-rc4-195-gf609936e078d

-EOT-

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 */