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AVR32: Build position-independent u-boot

Add -fPIC -mno-init-got to the avr32-specific CFLAGS to make u-boot
position independent. This will make relocation a lot easier.

-mno-init-got means that gcc shouldn't emit code to load the GOT
address into r6 in every function prologue. We do it once and for
all in the early startup assembly code, so enabling this option
makes u-boot a bit faster and smaller.

The assembly parts have always been position-independent, so no code
changes should be necessary.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Haavard Skinnemoen 17 лет назад
Родитель
Сommit
28c699ef69
1 измененных файлов с 1 добавлено и 1 удалено
  1. 1 1
      avr32_config.mk

+ 1 - 1
avr32_config.mk

@@ -21,5 +21,5 @@
 # MA 02111-1307 USA
 #
 
-PLATFORM_RELFLAGS	+= -ffixed-r5 -mno-pic -mrelax
+PLATFORM_RELFLAGS	+= -ffixed-r5 -fPIC -mno-init-got -mrelax
 PLATFORM_LDFLAGS	+= --relax