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authorDavid Daney <david.daney@cavium.com>2012-04-20 01:59:57 +0400
committerH. Peter Anvin <hpa@linux.intel.com>2012-04-20 02:06:56 +0400
commit1dbdc6f177c627ae462752c80a5c7f3b06a7f92a (patch)
tree935aacf3b5955d36adf87197738c798d8d4341b4 /Makefile
parentd219e2e86a407035303b987e4184ca0b1de53257 (diff)
downloadlinux-1dbdc6f177c627ae462752c80a5c7f3b06a7f92a.tar.xz
kbuild/extable: Hook up sortextable into the build system.
Define a config variable BUILDTIME_EXTABLE_SORT to control build time sorting of the kernel's exception table. Patch Makefile to do the sorting when BUILDTIME_EXTABLE_SORT is selected. Signed-off-by: David Daney <david.daney@cavium.com> Link: http://lkml.kernel.org/r/1334872799-14589-4-git-send-email-ddaney.cavm@gmail.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile10
1 files changed, 10 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index f6578f47e21e..622c918abff8 100644
--- a/Makefile
+++ b/Makefile
@@ -784,6 +784,10 @@ quiet_cmd_vmlinux_version = GEN .version
quiet_cmd_sysmap = SYSMAP
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
+# Sort exception table at build time
+quiet_cmd_sortextable = SORTEX
+ cmd_sortextable = $(objtree)/scripts/sortextable
+
# Link of vmlinux
# If CONFIG_KALLSYMS is set .version is already updated
# Generate System.map and verify that the content is consistent
@@ -796,6 +800,12 @@ define rule_vmlinux__
$(call cmd,vmlinux__)
$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
+ $(if $(CONFIG_BUILDTIME_EXTABLE_SORT), \
+ $(Q)$(if $($(quiet)cmd_sortextable), \
+ echo ' $($(quiet)cmd_sortextable) vmlinux' &&) \
+ $(cmd_sortextable) vmlinux)
+
+
$(Q)$(if $($(quiet)cmd_sysmap), \
echo ' $($(quiet)cmd_sysmap) System.map' &&) \
$(cmd_sysmap) $@ System.map; \