diff options
| author | Alan Jenkins <alan-jenkins@tuffmail.co.uk> | 2009-11-07 21:03:56 +0000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-11-25 13:16:25 +1100 |
| commit | 215143067b9bfacdfd475c5b2fa5536ee30f50ec (patch) | |
| tree | fc3e69b73e3d7b1f5daedd9156ad9d6565db39f3 /init | |
| parent | dbc16ef98e5d5d8e1114d420e81be36ba080b0d9 (diff) | |
kbuild: sort the list of symbols exported by the kernel (__ksymtab)
modpost of vmlinux.o now extracts the ksymtab sections and outputs
sorted versions of them as .tmp_exports-asm.S. These sorted sections
are linked into vmlinux and the original unsorted sections are
discarded.
This will allow modules to be loaded faster, resolving symbols using
binary search, without any increase in the memory needed for the
symbol tables.
This does not affect the building of modules, so hopefully it won't
affect compile times too much.
Minimally tested on ARM under QEMU emulator.
Build tested on blackfin; output of "size -A" unchanged.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
CC: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index 9e03ef8b311e..d3a5db8fb011 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1118,6 +1118,11 @@ config BASE_SMALL default 0 if BASE_FULL default 1 if !BASE_FULL +config HAVE_SYMBOL_PREFIX + bool + help + Some arch toolchains use a `_' prefix for all user symbols. + menuconfig MODULES bool "Enable loadable module support" help |