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authorRussell King <rmk+kernel@arm.linux.org.uk>2013-07-04 12:03:31 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-07-31 21:34:24 +0100
commitb9b32bf70f2fb710b07c94e13afbc729afe221da (patch)
tree865285ebb52964077d2b8a89a9e6b4d9e56eec5c /arch/arm/kernel/entry-armv.S
parent19accfd373847ac3d10623c5d20f948846299741 (diff)
downloadlinux-linaro-stable-b9b32bf70f2fb710b07c94e13afbc729afe221da.tar.gz
ARM: use linker magic for vectors and vector stubs
Use linker magic to create the vectors and vector stubs: we can tell the linker to place them at an appropriate VMA, but keep the LMA within the kernel. This gets rid of some unnecessary symbol manipulation, and have the linker calculate the relocations appropriately. Cc: <stable@vger.kernel.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-armv.S')
-rw-r--r--arch/arm/kernel/entry-armv.S28
1 files changed, 10 insertions, 18 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 79a41fa978f5..7e1ae91e5b1a 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -993,7 +993,7 @@ ENDPROC(vector_\name)
1:
.endm
- .globl __stubs_start
+ .section .stubs, "ax", %progbits
__stubs_start:
@ This must be the first word
.word vector_swi
@@ -1120,24 +1120,16 @@ vector_addrexcptn:
vector_fiq:
subs pc, lr, #4
- .globl __stubs_end
-__stubs_end:
-
- .equ stubs_offset, __vectors_start + 0x1000 - __stubs_start
-
- .globl __vectors_start
+ .section .vectors, "ax", %progbits
__vectors_start:
- W(b) vector_rst + stubs_offset
- W(b) vector_und + stubs_offset
- W(ldr) pc, .LCvswi + stubs_offset
- W(b) vector_pabt + stubs_offset
- W(b) vector_dabt + stubs_offset
- W(b) vector_addrexcptn + stubs_offset
- W(b) vector_irq + stubs_offset
- W(b) vector_fiq + stubs_offset
-
- .globl __vectors_end
-__vectors_end:
+ W(b) vector_rst
+ W(b) vector_und
+ W(ldr) pc, __vectors_start + 0x1000
+ W(b) vector_pabt
+ W(b) vector_dabt
+ W(b) vector_addrexcptn
+ W(b) vector_irq
+ W(b) vector_fiq
.data