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authorJan Beulich <jbeulich@novell.com>2008-12-16 11:30:08 +0000
committerSam Ravnborg <sam@ravnborg.org>2008-12-19 22:47:10 +0100
commit9bb482476c6c9d1ae033306440c51ceac93ea80c (patch)
treeb5e415eee46b66d9cc39e31d29d0d02994321d11 /init
parentad7a953c522ceb496611d127e51e278bfe0ff483 (diff)
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allow stripping of generated symbols under CONFIG_KALLSYMS_ALL
Building upon parts of the module stripping patch, this patch introduces similar stripping for vmlinux when CONFIG_KALLSYMS_ALL=y. Using CONFIG_KALLSYMS_STRIP_GENERATED reduces the overhead of CONFIG_KALLSYMS_ALL from 245k/310k to 65k/80k for the (i386/x86-64) kernels I tested with. The patch also does away with the need to special case the kallsyms- internal symbols by making them available even in the first linking stage. While it is a generated file, the patch includes the changes to scripts/genksyms/keywords.c_shipped, as I'm unsure what the procedure here is. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index f763762d544..0f5af409fef 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -588,6 +588,13 @@ config KALLSYMS_ALL
Say N.
+config KALLSYMS_STRIP_GENERATED
+ bool "Strip machine generated symbols from kallsyms"
+ depends on KALLSYMS_ALL
+ default y
+ help
+ Say N if you want kallsyms to retain even machine generated symbols.
+
config KALLSYMS_EXTRA_PASS
bool "Do an extra kallsyms pass"
depends on KALLSYMS