binutils: Don't generate .PPC.EMB.apuinfo sections for 64-bit output
This can cause issues building ppc64/eabi kernel. For details see the patch header (From OE-Core rev: 3c6622e22b0e1b2a8ceea6465ea84c6fb8299518) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
parent
6da3aca59b
commit
a8f92290f1
|
@ -47,6 +47,7 @@ BACKPORT = "\
|
|||
file://backport/0001-ld.texinfo-Replace-with-when-it-is-part-of-the-text.patch \
|
||||
file://backport/binutils-fix-ineffectual-zero-of-cache.patch \
|
||||
file://backport/binutils-replace-strncat-with-strcat.patch \
|
||||
file://backport/0001-config-tc-ppc.c-md_assemble-Do-not-generate-APUinfo-.patch \
|
||||
"
|
||||
SRC_URI[md5sum] = "33adb18c3048d057ac58d07a3f1adb38"
|
||||
SRC_URI[sha256sum] = "2ab2e5b03e086d12c6295f831adad46b3e1410a3a234933a2e8fac66cb2e7a19"
|
||||
|
|
|
@ -0,0 +1,46 @@
|
|||
The powerpc assembler can generate .PPC.EMB.apuinfo sections in some
|
||||
circumstances. These originate, I think, from the old e500 ABI; in
|
||||
any case, they are only defined for 32-bit ABIs, and there is a
|
||||
significant amount of code in bfd/elf32-ppc.c to handle them
|
||||
appropriately, none of which is in elf64-ppc.c. However, the
|
||||
assembler can generate them when building 64-bit code for processors
|
||||
such as e5500 (which uses PPC_OPCODE_E500MC). In such circumstances,
|
||||
they get generated as PROGBITS rather than NOTE sections, which
|
||||
reportedly can cause problems in a Linux kernel build.
|
||||
|
||||
Since these sections are only defined in 32-bit ABIs, I think it's
|
||||
most appropriate to avoid generating them for 64-bit output, which
|
||||
this patch does.
|
||||
|
||||
Upstream-Status: Backport
|
||||
|
||||
-Khem 2013/03/25
|
||||
|
||||
From d77411f56a85225e3f7b674e7172c712f6cd61cb Mon Sep 17 00:00:00 2001
|
||||
From: Joseph Myers <joseph@codesourcery.com>
|
||||
Date: Fri, 25 Jan 2013 02:02:20 +0000
|
||||
Subject: [PATCH] * config/tc-ppc.c (md_assemble): Do not generate
|
||||
APUinfo sections for 64-bit output.
|
||||
|
||||
---
|
||||
gas/ChangeLog | 5 +++++
|
||||
gas/config/tc-ppc.c | 3 ++-
|
||||
2 files changed, 7 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
|
||||
index fd15bea..0929e52 100644
|
||||
--- a/gas/config/tc-ppc.c
|
||||
+++ b/gas/config/tc-ppc.c
|
||||
@@ -3249,7 +3249,8 @@ md_assemble (char *str)
|
||||
|
||||
#ifdef OBJ_ELF
|
||||
/* Do we need/want an APUinfo section? */
|
||||
- if ((ppc_cpu & (PPC_OPCODE_E500 | PPC_OPCODE_E500MC | PPC_OPCODE_VLE)) != 0)
|
||||
+ if ((ppc_cpu & (PPC_OPCODE_E500 | PPC_OPCODE_E500MC | PPC_OPCODE_VLE)) != 0
|
||||
+ && !ppc_obj64)
|
||||
{
|
||||
/* These are all version "1". */
|
||||
if (opcode->flags & PPC_OPCODE_SPE)
|
||||
--
|
||||
1.7.9.5
|
||||
|
Loading…
Reference in New Issue