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| author | Jan Beulich <jbeulich@novell.com> | 2008-12-16 11:30:08 +0000 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2008-12-19 22:47:10 +0100 |
| commit | 9bb482476c6c9d1ae033306440c51ceac93ea80c (patch) | |
| tree | b5e415eee46b66d9cc39e31d29d0d02994321d11 /init | |
| parent | ad7a953c522ceb496611d127e51e278bfe0ff483 (diff) | |
| download | lwn-9bb482476c6c9d1ae033306440c51ceac93ea80c.tar.gz lwn-9bb482476c6c9d1ae033306440c51ceac93ea80c.zip | |
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/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index f763762d544a..0f5af409fef1 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 |