path: root/Makefile
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 /Makefile
parentkbuild: remove pointless strdup() on arguments passed to new_module() in modpost (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 'Makefile')
1 files changed, 4 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 3e95d454285c..ad830bd45a4b 100644
--- a/Makefile
+++ b/Makefile
@@ -597,6 +597,10 @@ LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
+LDFLAGS_vmlinux += -X
# Default kernel image to build when no specific target is given.
# KBUILD_IMAGE may be overruled on the command line or
# set in the environment