Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10751
-gerrit
commit 97f444010dfc8f239606f9a0d6bfea1ad7677299 Author: Stefan Reinauer stefan.reinauer@coreboot.org Date: Wed Jul 1 11:31:40 2015 -0700
libpayload: Keep stack boundary small on x86
There is no measurable performance impact, but this positively impacts the memory used by payloads.
Change-Id: Ib2bdba4a7bf2a4c2391a20b3225bbb44422d3194 Signed-off-by: Stefan Reinauer stefan.reinauer@coreboot.org --- payloads/libpayload/arch/x86/Makefile.inc | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/payloads/libpayload/arch/x86/Makefile.inc b/payloads/libpayload/arch/x86/Makefile.inc index 87b3e9e..6517bf1 100644 --- a/payloads/libpayload/arch/x86/Makefile.inc +++ b/payloads/libpayload/arch/x86/Makefile.inc @@ -27,6 +27,8 @@ ## SUCH DAMAGE. ##
+CFLAGS += -mpreferred-stack-boundary=2 + head.o-y += head.S libc-y += main.c sysinfo.c libc-y += timer.c coreboot.c util.S