Commit f4fdfa901e6587875c9bf42dcd3367c98e6baa02
Committed by
guoyin.chen
1 parent
badb1ea09d
Exists in
smarc-imx_v2015.04_4.1.15_1.0.0_ga
and in
1 other branch
MLK-11946 arm: config: disable pic when compiling code
Android's tool chain enable the -mandroid at default. This option will enable the -fpic, which cause uboot compilation failure: " LD u-boot u-boot contains unexpected relocations: R_ARM_ABS32 R_ARM_RELATIVE " In my testcase, arm-linux-androideabi-gcc-4.9 internally enables '-fpic', so when compiling code, there will be relocation entries using type R_ARM_GOT_BREL and .got section. When linking all the built-in.o using ld, there will be R_ARM_ABS32 relocation entry and .got section in the final u-boot elf image. This can not be handled by u-boot, since u-boot only expects R_ARM_RELATIVE relocation entry. arm-poky-linux-gnueabi-gcc-4.9 default does not enable '-fpic', so there is not .got section and R_ARM_GOT_BREL in built-in.o. And in the final u-boot elf image, all relocation entries are R_ARM_RELATIVE. we can pass '-fno-pic' to xxx-gcc to disable pic. whether the toolchain internally enables or disables pic, '-fno-pic' can work well. Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff
arch/arm/config.mk
... | ... | @@ -106,6 +106,7 @@ |
106 | 106 | # instruction. Relocation is not supported for that case, so disable |
107 | 107 | # such usage by requiring word relocations. |
108 | 108 | PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations) |
109 | +PLATFORM_CPPFLAGS += $(call cc-option, -fno-pic) | |
109 | 110 | endif |
110 | 111 | |
111 | 112 | # limit ourselves to the sections we want in the .bin. |