[binutils-gdb/binutils-2_33-branch] powerpc64-ld infinite loop

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=5251ab5f608ef47b83cc39625191cad9884a4581

commit 5251ab5f608ef47b83cc39625191cad9884a4581
Author: Alan Modra <amodra@gmail.com>
Date:   Wed Mar 11 14:43:16 2020 +1030

    powerpc64-ld infinite loop
    
    If this code dealing with possible conversion of inline plt sequences
    is ever executed, ld will hang.  A binary with such sequences and of
    code size larger than approximately 90% the reach of an unconditional
    branch is the trigger.  Oops.
    
            * elf64-ppc.c (ppc64_elf_inline_plt): Do increment rel in for loop.
    
    (cherry picked from commit 435edf0bf231240ccecb474b74ebb49dc8db2633)

Diff:
---
 bfd/ChangeLog   | 4 ++++
 bfd/elf64-ppc.c | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 67342f1e984..2ce56080919 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-11  Alan Modra  <amodra@gmail.com>
+
+	* elf64-ppc.c (ppc64_elf_inline_plt): Do increment rel in for loop.
+
 2020-01-15  Alan Modra  <amodra@gmail.com>
 
 	PR 25384
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index c093612d081..fcb5dea1264 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -7469,7 +7469,7 @@ ppc64_elf_inline_plt (struct bfd_link_info *info)
 	      return FALSE;
 
 	    relend = relstart + sec->reloc_count;
-	    for (rel = relstart; rel < relend; )
+	    for (rel = relstart; rel < relend; rel++)
 	      {
 		enum elf_ppc64_reloc_type r_type;
 		unsigned long r_symndx;