path: root/init/Kconfig
diff options
authorDavid Howells <dhowells@redhat.com>2009-03-04 11:59:07 -0800
committerSam Ravnborg <sam@ravnborg.org>2009-04-11 08:18:10 +0200
commit5d7d18f5bc507b60d3d8967e2739d5e6ffdd630f (patch)
tree2c021642ba7bf345afaa876238a099211fd3fb1e /init/Kconfig
parent0fa3a88cfdfc910d7f335aef588edf9819c05d54 (diff)
kbuild: make it possible for the linker to discard local symbols from vmlinux
Make it possible for the linker to discard local symbols from vmlinux as they cause vmlinux to balloon when CONFIG_KALLSYMS=y and they cause dump_stack() and get_wchan() to produce useless information under some circumstances. With this we add a config option (CONFIG_STRIP_ASM_SYMS) that will cause the build to supply -X to the linker to tell it to strip temporary local symbols. This doesn't seem to cause gdb any problems. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'init/Kconfig')
1 files changed, 8 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index f2f9b5362b4..7be4d383674 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -808,6 +808,14 @@ config KALLSYMS_EXTRA_PASS
you wait for kallsyms to be fixed.
+ bool "Strip assembler-generated symbols during link"
+ default n
+ help
+ Strip internal assembler-generated symbols during a link (symbols
+ that look like '.Lxxx') so they don't pollute the output of
+ get_wchan() and suchlike.
config HOTPLUG
bool "Support for hot-pluggable devices" if EMBEDDED
default y