From: Alan Modra <amodra@gmail.com>
Date: Sun, 9 Feb 2025 22:00:51 +0000 (+1030)
Subject: PR32664, compressed debug section naming confusion
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=79e6242a1cd8d63663c7a875cbdb7805e374710f;p=thirdparty%2Fbinutils-gdb.git

PR32664, compressed debug section naming confusion

The pr326664 fuzzer testcase has two .debug_info sections, one
SHF_ALLOC, one not.  SEC_DEBUGGING is never set for SHF_ALLOC sections
that happen to be named .debug_info, nor are they compressed.  However
in this case we get an output section that is both SEC_ALLOC and
SEC_DEBUGGING which confuses code setting up the output section names
(.zdebug_* for compressed debug sections), resulting in a -1u index
into a string table.

	PR 32664
	* elf.c (elf_fake_sections): Do not delay naming of SEC_ALLOC
	sections.
---

diff --git a/bfd/elf.c b/bfd/elf.c
index 0e40d6d1d30..129cac58382 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -3542,6 +3542,7 @@ elf_fake_sections (bfd *abfd, asection *asect, void *fsarg)
   if (arg->link_info
       && (abfd->flags & BFD_COMPRESS) != 0
       && (asect->flags & SEC_DEBUGGING) != 0
+      && (asect->flags & SEC_ALLOC) == 0
       && name[1] == 'd'
       && name[6] == '_')
     {