|
 |
bb3be4 |
From c00b42d59c296ef9b0660afd7b31e1d3c10972e7 Mon Sep 17 00:00:00 2001
|
|
|
bb3be4 |
From: Alan Modra <amodra@gmail.com>
|
|
|
bb3be4 |
Date: Sun, 8 Nov 2015 09:29:00 -0800
|
|
|
bb3be4 |
Subject: [PATCH 07/11] ELF unexec: R_*_NONE relocs
|
|
|
bb3be4 |
|
|
|
bb3be4 |
These should be ignored on all targets.
|
|
|
bb3be4 |
|
|
|
bb3be4 |
* unexelf.c (unexec): Ignore R_*_NONE relocs for any target,
|
|
|
bb3be4 |
not just Alpha. Comment on reloc size assumption.
|
|
|
bb3be4 |
---
|
|
|
bb3be4 |
src/unexelf.c | 14 +++++++-------
|
|
|
bb3be4 |
1 file changed, 7 insertions(+), 7 deletions(-)
|
|
|
bb3be4 |
|
|
|
bb3be4 |
diff --git a/src/unexelf.c b/src/unexelf.c
|
|
|
bb3be4 |
index df99f92..15a4cde 100644
|
|
|
bb3be4 |
--- a/src/unexelf.c
|
|
|
bb3be4 |
+++ b/src/unexelf.c
|
|
|
bb3be4 |
@@ -1202,7 +1202,7 @@ temacs:
|
|
|
bb3be4 |
}
|
|
|
bb3be4 |
|
|
|
bb3be4 |
/* This loop seeks out relocation sections for the data section, so
|
|
|
bb3be4 |
- that it can undo relocations performed by the runtime linker. */
|
|
|
bb3be4 |
+ that it can undo relocations performed by the runtime loader. */
|
|
|
bb3be4 |
for (n = new_file_h->e_shnum; 0 < --n; )
|
|
|
bb3be4 |
{
|
|
|
bb3be4 |
ElfW (Shdr) *rel_shdr = &NEW_SECTION_H (n);
|
|
|
bb3be4 |
@@ -1235,14 +1235,14 @@ temacs:
|
|
|
bb3be4 |
reloc += rel_shdr->sh_entsize)
|
|
|
bb3be4 |
{
|
|
|
bb3be4 |
ElfW (Addr) addr = ((ElfW (Rel) *) reloc)->r_offset - offset;
|
|
|
bb3be4 |
-#ifdef __alpha__
|
|
|
bb3be4 |
- /* The Alpha ELF binutils currently have a bug that
|
|
|
bb3be4 |
- sometimes results in relocs that contain all
|
|
|
bb3be4 |
- zeroes. Work around this for now... */
|
|
|
bb3be4 |
+ /* Ignore R_*_NONE relocs. */
|
|
|
bb3be4 |
if (((ElfW (Rel) *) reloc)->r_offset == 0)
|
|
|
bb3be4 |
continue;
|
|
|
bb3be4 |
-#endif
|
|
|
bb3be4 |
- memcpy (new_base + addr, old_base + addr, sizeof (ElfW (Addr)));
|
|
|
bb3be4 |
+ /* Assume reloc applies to a word.
|
|
|
bb3be4 |
+ ??? This is not always true, eg. TLS module/index
|
|
|
bb3be4 |
+ pair in .got which occupies two words. */
|
|
|
bb3be4 |
+ memcpy (new_base + addr, old_base + addr,
|
|
|
bb3be4 |
+ sizeof (ElfW (Addr)));
|
|
|
bb3be4 |
}
|
|
|
bb3be4 |
}
|
|
|
bb3be4 |
break;
|
|
|
bb3be4 |
--
|
|
|
bb3be4 |
2.7.4
|
|
|
bb3be4 |
|