From: Shinya Kuribayashi Date: Sun, 21 Oct 2007 12:30:42 +0000 (+0900) Subject: [MIPS] Add PIC-related switches to PLATFORM_{CPP,LD}FLAGS and cleanup X-Git-Tag: v1.3.0-rc4~27^2~1^2^2~1 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=00101dd7a32d12f698150123e47e4b3420279f86;p=u-boot [MIPS] Add PIC-related switches to PLATFORM_{CPP,LD}FLAGS and cleanup Signed-off-by: Shinya Kuribayashi --- diff --git a/cpu/mips/config.mk b/cpu/mips/config.mk index b29986e26b..487c4eb5d6 100644 --- a/cpu/mips/config.mk +++ b/cpu/mips/config.mk @@ -35,6 +35,6 @@ else ENDIANNESS = -EB endif -MIPSFLAGS += $(ENDIANNESS) -mabicalls +MIPSFLAGS += $(ENDIANNESS) PLATFORM_CPPFLAGS += $(MIPSFLAGS) diff --git a/mips_config.mk b/mips_config.mk index d8aa5fa777..67fb67d291 100644 --- a/mips_config.mk +++ b/mips_config.mk @@ -22,3 +22,28 @@ # PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__ + +# +# From Linux arch/mips/Makefile +# +# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel +# code since it only slows down the whole thing. At some point we might make +# use of global pointer optimizations but their use of $28 conflicts with +# the current pointer optimization. +# +# The DECStation requires an ECOFF kernel for remote booting, other MIPS +# machines may also. Since BFD is incredibly buggy with respect to +# crossformat linking we rely on the elf2ecoff tool for format conversion. +# +# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe +# cflags-y += -msoft-float +# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib +# MODFLAGS += -mlong-calls +# + +# +# Meanwhile, U-Boot rely on PIC. We add proper switches explicitly. +# +PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic -pipe +PLATFORM_CPPFLAGS += -msoft-float +PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib