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MIPS: do not build position-independent executables for SPL 

SPL binaries are usually linked to a fixed address in SRAM.
Furthermore SPL binaries do not need to relocate itself. Thus
do not build them as position-independent binaries which helps
to largely reduce the size of SPL binaries.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
utp
Daniel Schwierzeck 2015-12-19 20:20:47 +01:00
parent 5b6f357fe7
commit e92d9124f8
1 changed files with 14 additions and 4 deletions
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18
arch/mips/config.mk
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@ -63,10 +63,20 @@ PLATFORM_CPPFLAGS += -D__MIPS__
# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
# to RAM. $28 is always used as gp.
#
PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic
ifdef CONFIG_SPL_BUILD
PF_ABICALLS := -mno-abicalls
PF_PIC := -fno-pic
PF_PIE :=
else
PF_ABICALLS := -mabicalls
PF_PIC := -fpic
PF_PIE := -pie
PF_OBJCOPY := -j .got -j .u_boot_list -j .rel.dyn -j .padding
endif
PLATFORM_CPPFLAGS += -G 0 $(PF_ABICALLS) $(PF_PIC)
PLATFORM_CPPFLAGS += -msoft-float
PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
LDFLAGS_FINAL += --gc-sections -pie
OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got
OBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn -j .padding
LDFLAGS_FINAL += --gc-sections $(PF_PIE)
OBJCOPYFLAGS += -j .text -j .rodata -j .data $(PF_OBJCOPY)