From 668e5292203015b67e4485084d71f6aa6ff6f9f0 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Sat, 2 Feb 2013 09:30:47 +0000
Subject: [PATCH] generic: fix gc_sections patch
Due to the patch, essential '.data..*' sections are merged
into the '.data' section:
--- vmlinux.good.sect 2013-02-01 23:49:16.000000000 +0100
+++ vmlinux.bad.sect 2013-02-01 23:49:02.000000000 +0100
@@ -1,5 +1,5 @@
-vmlinux.good: file format elf32-powerpc
+vmlinux.bad: file format elf32-powerpc
Sections:
Idx Name Size VMA LMA File off Algn
@@ -53,43 +53,35 @@
CONTENTS, ALLOC, LOAD, READONLY, DATA
24 .machine.desc 00000460 c04e1000 004e1000 004f1000 2**2
CONTENTS, ALLOC, LOAD, DATA
- 25 .data 0000f6a0 c04e2000 004e2000 004f2000 2**12
+ 25 .data 0001635c c04e2000 004e2000 004f2000 2**12
CONTENTS, ALLOC, LOAD, DATA
- 26 .data..init_task 00002000 c04f2000 004f2000 00502000 2**3
- CONTENTS, ALLOC, LOAD, DATA
- 27 .data..page_aligned 00002000 c04f4000 004f4000 00504000 2**12
- CONTENTS, ALLOC, LOAD, DATA
- 28 .data..cacheline_aligned 00000c00 c04f6000 004f6000 00506000
2**5
- CONTENTS, ALLOC, LOAD, DATA
- 29 .data..read_mostly 000015e0 c04f6c00 004f6c00 00506c00 2**3
- CONTENTS, ALLOC, LOAD, DATA
- 30 .sbss 000002e0 c04f9000 004f9000 005081e0 2**3
+ 26 .sbss 000002e0 c04fa000 004fa000 0050835c 2**3
<...>
This causes boot hang on powerpc. Modify the patch to
ensure that the kernel specific '.data..*' sections
remain separate.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 35447
---
target/linux/generic/patches-3.7/220-gc_sections.patch | 2 +-
target/linux/generic/patches-3.8/220-gc_sections.patch | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/linux/generic/patches-3.7/220-gc_sections.patch b/target/linux/generic/patches-3.7/220-gc_sections.patch
index 8a52a1eec8..bdafdfe9c6 100644
--- a/target/linux/generic/patches-3.7/220-gc_sections.patch
+++ b/target/linux/generic/patches-3.7/220-gc_sections.patch
@@ -115,7 +115,7 @@
BRANCH_PROFILE() \
- TRACE_PRINTKS()
+ TRACE_PRINTKS() \
-+ *(.data.*)
++ *(.data.[a-zA-Z_]*)
/*
* Data section helpers
diff --git a/target/linux/generic/patches-3.8/220-gc_sections.patch b/target/linux/generic/patches-3.8/220-gc_sections.patch
index 19c0f15923..0edba22757 100644
--- a/target/linux/generic/patches-3.8/220-gc_sections.patch
+++ b/target/linux/generic/patches-3.8/220-gc_sections.patch
@@ -115,7 +115,7 @@
BRANCH_PROFILE() \
- TRACE_PRINTKS()
+ TRACE_PRINTKS() \
-+ *(.data.*)
++ *(.data.[a-zA-Z_]*)
/*
* Data section helpers
--
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