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Commit 1dbdc6f1 authored by David Daney's avatar David Daney Committed by H. Peter Anvin
Browse files

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: default avatarDavid Daney <david.daney@cavium.com>
Link: http://lkml.kernel.org/r/1334872799-14589-4-git-send-email-ddaney.cavm@gmail.com


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent d219e2e8

Makefile

+10 −0
Original line number Diff line number Diff line
@@ -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;                                         \

init/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -27,6 +27,9 @@ config IRQ_WORK 
	bool

	depends on HAVE_IRQ_WORK



config BUILDTIME_EXTABLE_SORT

	bool



menu "General setup"



config EXPERIMENTAL