The patch titled
m32r: fix kernel entry address of vmlinux
has been added to the -mm tree. Its filename is
m32r-fix-kernel-entry-address-of-vmlinux.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: m32r: fix kernel entry address of vmlinux
From: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
This patch fixes the kernel entry point address of vmlinux.
The m32r kernel entry address is 0x08002000 (physical).
But, so far, the ENTRY point written in vmlinux.lds.S was not point
the correct kernel entry address.
(before fix)
$ objdump -x vmlinux
vmlinux: file format elf32-m32r-linux
vmlinux
architecture: m32r2, flags 0x00000112:
EXEC_P, HAS_SYMS, D_PAGED
start address 0x88002090 /* NG */
:
Sections:
Idx Name Size VMA LMA File off Algn
0 .empty_zero_page 00001000 88001000 88001000 00001000 2**12
CONTENTS, ALLOC, LOAD, DATA
1 .boot 0000008c 88002000 88002000 00002000 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
2 .text 001ab694 88002090 88002090 00002090 2**4
CONTENTS, ALLOC, LOAD, READONLY, CODE
:
(after fix)
$ objdump -x vmlinux
vmlinux: file format elf32-m32r-linux
vmlinux
architecture: m32r2, flags 0x00000112:
EXEC_P, HAS_SYMS, D_PAGED
start address 0x08002000 /* OK */
:
This fix also remedies the following GDB error message (of gdb-6.4 or after)
at the first operation of kernel debugging:
"Previous frame identical to this frame (corrupt stack?)".
Signed-off-by: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/m32r/Makefile | 2 +-
arch/m32r/kernel/vmlinux.lds.S | 5 ++++-
2 files changed, 5 insertions(+), 2 deletions(-)
diff -puN arch/m32r/Makefile~m32r-fix-kernel-entry-address-of-vmlinux arch/m32r/Makefile
--- a/arch/m32r/Makefile~m32r-fix-kernel-entry-address-of-vmlinux
+++ a/arch/m32r/Makefile
@@ -7,7 +7,7 @@
LDFLAGS :=
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
-LDFLAGS_vmlinux := -e startup_32
+LDFLAGS_vmlinux :=
CFLAGS += -pipe -fno-schedule-insns
CFLAGS_KERNEL += -mmodel=medium
diff -puN arch/m32r/kernel/vmlinux.lds.S~m32r-fix-kernel-entry-address-of-vmlinux arch/m32r/kernel/vmlinux.lds.S
--- a/arch/m32r/kernel/vmlinux.lds.S~m32r-fix-kernel-entry-address-of-vmlinux
+++ a/arch/m32r/kernel/vmlinux.lds.S
@@ -6,12 +6,15 @@
#include <asm/page.h>
OUTPUT_ARCH(m32r)
-ENTRY(startup_32)
#if defined(__LITTLE_ENDIAN__)
jiffies = jiffies_64;
#else
jiffies = jiffies_64 + 4;
#endif
+
+kernel_entry = boot - 0x80000000;
+ENTRY(kernel_entry)
+
SECTIONS
{
. = CONFIG_MEMORY_START + __PAGE_OFFSET;
_
Patches currently in -mm which might be from takata@xxxxxxxxxxxxxx are
m32r-build-fix-for-processors-without-isa_dsp_level2.patch
m32r-fix-do_page_fault-and-update_mmu_cache.patch
m32r-update-defconfig-files-for-v2619.patch
m32r-fix-kernel-entry-address-of-vmlinux.patch
m32r-cosmetic-updates-and-trivial-fixes.patch
-
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