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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/vmlinux.lds.S
parent19accfd373847ac3d10623c5d20f948846299741 (diff)
downloadop-kernel-dev-b9b32bf70f2fb710b07c94e13afbc729afe221da.zip
op-kernel-dev-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/vmlinux.lds.S')
-rw-r--r--arch/arm/kernel/vmlinux.lds.S17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index fa25e4e..7bcee5c 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -148,6 +148,23 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
__init_begin = .;
#endif
+ /*
+ * The vectors and stubs are relocatable code, and the
+ * only thing that matters is their relative offsets
+ */
+ __vectors_start = .;
+ .vectors 0 : AT(__vectors_start) {
+ *(.vectors)
+ }
+ . = __vectors_start + SIZEOF(.vectors);
+ __vectors_end = .;
+
+ __stubs_start = .;
+ .stubs 0x1000 : AT(__stubs_start) {
+ *(.stubs)
+ }
+ . = __stubs_start + SIZEOF(.stubs);
+ __stubs_end = .;
INIT_TEXT_SECTION(8)
.exit.text : {
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