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authorStephen Boyd <sboyd@codeaurora.org>2012-10-29 19:19:34 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-11-04 10:31:16 +0000
commitee951c630c5ce5108f8014ce1c9d738b5bbfea60 (patch)
treea0f7428f58d1ff028c4a88c94fdb1aa61bbcbbd6 /arch/arm/kernel/vmlinux.lds.S
parenta68becd1dcda55b467dcabaff136cadc10abb761 (diff)
downloadop-kernel-dev-ee951c630c5ce5108f8014ce1c9d738b5bbfea60.zip
op-kernel-dev-ee951c630c5ce5108f8014ce1c9d738b5bbfea60.tar.gz
ARM: 7568/1: Sort exception table at compile time
Add the ARM machine identifier to sortextable and select the config option so that we can sort the exception table at compile time. sortextable relies on a section named __ex_table existing in the vmlinux, but ARM's linker script places the exception table in the data section. Give the exception table its own section so that sortextable can find it. This allows us to skip the sorting step during boot. Cc: David Daney <david.daney@cavium.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Will Deacon <will.deacon@arm.com> 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.S19
1 files changed, 9 insertions, 10 deletions
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 36ff15b..b9f38e3 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -114,6 +114,15 @@ SECTIONS
RO_DATA(PAGE_SIZE)
+ . = ALIGN(4);
+ __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
+ __start___ex_table = .;
+#ifdef CONFIG_MMU
+ *(__ex_table)
+#endif
+ __stop___ex_table = .;
+ }
+
#ifdef CONFIG_ARM_UNWIND
/*
* Stack unwinding tables
@@ -220,16 +229,6 @@ SECTIONS
READ_MOSTLY_DATA(L1_CACHE_BYTES)
/*
- * The exception fixup table (might need resorting at runtime)
- */
- . = ALIGN(4);
- __start___ex_table = .;
-#ifdef CONFIG_MMU
- *(__ex_table)
-#endif
- __stop___ex_table = .;
-
- /*
* and the usual data section
*/
DATA_DATA
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