From: Alan Modra <amodra@gmail.com>
Date: Wed, 12 Jan 2022 05:11:22 +0000 (+1030)
Subject: Re: Set SEC_ELF_REVERSE_COPY earlier
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0ae1246717ffbabda5d54be8def95f4424147c0f;p=binutils-gdb.git

Re: Set SEC_ELF_REVERSE_COPY earlier

Let's not rely on .init/.fini having relocs for the size sanity check.
This is mainly to squash reports of "my fuzzed object made ld hang".
---

diff --git a/bfd/elflink.c b/bfd/elflink.c
index 107480286f3..4529f83dbca 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -11834,9 +11834,10 @@ elf_link_input_bfd (struct elf_final_link_info *flinfo, bfd *input_bfd)
 		  {
 		    /* Reverse-copy input section to output.  */
 
-		    if (o->reloc_count != 0
-			&& (o->size * bed->s->int_rels_per_ext_rel
-			    != o->reloc_count * address_size))
+		    if ((o->size & (address_size - 1)) != 0
+			|| (o->reloc_count != 0
+			    && (o->size * bed->s->int_rels_per_ext_rel
+				!= o->reloc_count * address_size)))
 		      {
 			_bfd_error_handler
 			  /* xgettext:c-format */