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authorMichael Ellerman <michael@ellerman.id.au>2005-11-03 16:03:06 +1100
committerMichael Ellerman <michael@ellerman.id.au>2005-11-03 16:03:06 +1100
commite19e4ab4154a831788365c07e7a10d9114bba46c (patch)
tree63c61be402940f0731d6810b2d1d7372b61a9815 /arch/powerpc
parent358c86fda080a5e7c66dcaad3707061f32fff7cc (diff)
downloadop-kernel-dev-e19e4ab4154a831788365c07e7a10d9114bba46c.zip
op-kernel-dev-e19e4ab4154a831788365c07e7a10d9114bba46c.tar.gz
powerpc: Set entry point and text address in linker script
Currently we set the kernel entry point and the address of the text section in the Makefile, using CONFIG_KERNEL_START. But we've already got <asm/page.h> in the linker script, so we can just use KERNELBASE directly. That means if we ever change KERNELBASE there's one less place to change it. And we can set the entry point with ENTRY(). There are zero differences from "readelf -a vmlinux" with or without this patch. Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/Makefile5
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S7
2 files changed, 4 insertions, 8 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 2f4cce0..5bc11bd 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -12,9 +12,6 @@
# Rewritten by Cort Dougan and Paul Mackerras
#
-# This must match PAGE_OFFSET in include/asm-powerpc/page.h.
-KERNELLOAD := $(CONFIG_KERNEL_START)
-
HAS_BIARCH := $(call cc-option-yn, -m32)
ifeq ($(CONFIG_PPC64),y)
@@ -59,7 +56,7 @@ override LD += -m elf$(SZ)ppc
override CC += -m$(SZ)
endif
-LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic -e $(KERNELLOAD)
+LDFLAGS_vmlinux := -Bstatic
# The -Iarch/$(ARCH)/include is temporary while we are merging
CPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index d4dfcfb..9ceaa7a 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -1,11 +1,9 @@
#include <linux/config.h>
-#ifdef CONFIG_PPC64
#include <asm/page.h>
-#else
-#define PAGE_SIZE 4096
-#endif
#include <asm-generic/vmlinux.lds.h>
+ENTRY(_stext)
+
#ifdef CONFIG_PPC64
OUTPUT_ARCH(powerpc:common64)
jiffies = jiffies_64;
@@ -21,6 +19,7 @@ SECTIONS
*(.exit.data)
}
+ . = KERNELBASE;
/* Read-only sections, merged into text segment: */
#ifdef CONFIG_PPC32
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