59 lines
2.0 KiB
Diff
59 lines
2.0 KiB
Diff
From f9d91515971443b754b9c9eaac45a293d0e620c1 Mon Sep 17 00:00:00 2001
|
|
From: Alan Modra <amodra@gmail.com>
|
|
Date: Sun, 8 Nov 2015 09:29:00 -0800
|
|
Subject: ELF unexec: R_*_NONE relocs
|
|
|
|
Emacs should build on ppc64el. A problem with the bss has been fixed.
|
|
|
|
This upstream patch has been added [6/10]:
|
|
|
|
ELF unexec: R_*_NONE relocs
|
|
|
|
These should be ignored on all targets.
|
|
|
|
* unexelf.c (unexec): Ignore R_*_NONE relocs for any target,
|
|
not just Alpha. Comment on reloc size assumption.
|
|
|
|
Origin: upstream, commit: 8285c2ab8050de218c0c06182659ee0a7b23a0f6
|
|
Bug: http://debbugs.gnu.org/20614
|
|
Bug-Debian: http://bugs.debian.org/808347
|
|
Added-by: Rob Browning <rlb@defaultvalue.org>
|
|
---
|
|
src/unexelf.c | 14 +++++++-------
|
|
1 file changed, 7 insertions(+), 7 deletions(-)
|
|
|
|
Index: emacs-24.5/src/unexelf.c
|
|
===================================================================
|
|
--- emacs-24.5.orig/src/unexelf.c
|
|
+++ emacs-24.5/src/unexelf.c
|
|
@@ -1203,7 +1203,7 @@ temacs:
|
|
}
|
|
|
|
/* This loop seeks out relocation sections for the data section, so
|
|
- that it can undo relocations performed by the runtime linker. */
|
|
+ that it can undo relocations performed by the runtime loader. */
|
|
for (n = new_file_h->e_shnum; 0 < --n; )
|
|
{
|
|
ElfW (Shdr) *rel_shdr = &NEW_SECTION_H (n);
|
|
@@ -1236,14 +1236,14 @@ temacs:
|
|
reloc += rel_shdr->sh_entsize)
|
|
{
|
|
ElfW (Addr) addr = ((ElfW (Rel) *) reloc)->r_offset - offset;
|
|
-#ifdef __alpha__
|
|
- /* The Alpha ELF binutils currently have a bug that
|
|
- sometimes results in relocs that contain all
|
|
- zeroes. Work around this for now... */
|
|
+ /* Ignore R_*_NONE relocs. */
|
|
if (((ElfW (Rel) *) reloc)->r_offset == 0)
|
|
continue;
|
|
-#endif
|
|
- memcpy (new_base + addr, old_base + addr, sizeof (ElfW (Addr)));
|
|
+ /* Assume reloc applies to a word.
|
|
+ ??? This is not always true, eg. TLS module/index
|
|
+ pair in .got which occupies two words. */
|
|
+ memcpy (new_base + addr, old_base + addr,
|
|
+ sizeof (ElfW (Addr)));
|
|
}
|
|
}
|
|
break;
|