From e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Thu, 14 Feb 2008 22:43:22 +0100 Subject: PPC: Use r2 instead of r29 as global data pointer R29 was an unlucky choice as with recent toolchains (gcc-4.2.x) gcc will refuse to use load/store multiple insns; instead, it issues a list of simple load/store instructions upon function entry and exit, resulting in bigger code size, which in turn makes the build for a few boards fail. Use r2 instead. Signed-off-by: Wolfgang Denk --- cpu/mpc8xx/config.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'cpu/mpc8xx') diff --git a/cpu/mpc8xx/config.mk b/cpu/mpc8xx/config.mk index bfa6625fa8..6031e7f76a 100644 --- a/cpu/mpc8xx/config.mk +++ b/cpu/mpc8xx/config.mk @@ -23,4 +23,4 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing -PLATFORM_CPPFLAGS += -DCONFIG_8xx -ffixed-r2 -ffixed-r29 -mstring -mcpu=860 -msoft-float +PLATFORM_CPPFLAGS += -DCONFIG_8xx -ffixed-r2 -mstring -mcpu=860 -msoft-float -- cgit v1.2.3