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authorWill Deacon <will.deacon@arm.com>2013-05-08 17:29:24 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2013-06-12 11:23:01 +0100
commitadace89562c7a9645b8dc84f6e1ac7ba8756094e (patch)
tree8a2cef419d80b54769da7cf5853ff4292f9e8237 /arch/arm64
parent73150c983ac1f9b7653cfd3823b1ad4a44aad3bf (diff)
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arm64: extable: sort the exception table at build time
As is done for other architectures, sort the exception table at build-time rather than during boot. Since sortextable appears to be a standalone C program relying on the host elf.h to provide EM_AARCH64, I've had to add a conditional check in order to allow cross-compilation on machines that aren't running a bleeding-edge libc-dev. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/Kconfig1
-rw-r--r--arch/arm64/kernel/vmlinux.lds.S10
2 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 56b3f6d..c3e3a17 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -7,6 +7,7 @@ config ARM64
select ARM_AMBA
select ARM_ARCH_TIMER
select ARM_GIC
+ select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
select GENERIC_CLOCKEVENTS
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 3fae2be..5e06a17 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -56,7 +56,7 @@ SECTIONS
}
RO_DATA(PAGE_SIZE)
-
+ EXCEPTION_TABLE(8)
_etext = .; /* End of text and rodata section */
. = ALIGN(PAGE_SIZE);
@@ -99,14 +99,6 @@ SECTIONS
READ_MOSTLY_DATA(64)
/*
- * The exception fixup table (might need resorting at runtime)
- */
- . = ALIGN(32);
- __start___ex_table = .;
- *(__ex_table)
- __stop___ex_table = .;
-
- /*
* and the usual data section
*/
DATA_DATA