diff options
| author | Vasili Galka <vvv444@gmail.com> | 2014-06-10 16:14:56 +0300 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-06-23 15:37:23 -0600 |
| commit | dbb7234b2a5e7d2cdb6658156de8d2d5b54033d7 (patch) | |
| tree | 0459fd1d2057ae96e4d27e340228f10891acf6a0 /arch/x86 | |
| parent | 038380597bc9b97378da2e18355cd7346d17b002 (diff) | |
x86: Enable 32-bit build using x86_64 multilib toolchain
Until now building the x86 arch boards required 32-bit toolchain. As
many x86_64 toolchains come with 32-bit support (multilib) that's a
good idea to enable build with such toolchains.
The change required was to specify the usage of 32-bit explicitly to
the compiler and the linker (-m32 and -m elf_i386 flags) and locate
the right libgcc path.
Signed-off-by: Vasili Galka <vvv444@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/config.mk | 5 | ||||
| -rw-r--r-- | arch/x86/cpu/config.mk | 2 |
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/config.mk b/arch/x86/config.mk index 38cb7c93a5..3106079c85 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -16,17 +16,18 @@ PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \ PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm PLATFORM_CPPFLAGS += -DREALMODE_BASE=0x7c0 +PLATFORM_CPPFLAGS += -march=i386 -m32 # Support generic board on x86 __HAVE_ARCH_GENERIC_BOARD := y PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden -PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions +PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions -m elf_i386 LDFLAGS_FINAL += --gc-sections -pie LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3 LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3 -export NORMAL_LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) +export NORMAL_LIBGCC = $(shell $(CC) $(PLATFORM_CPPFLAGS) -print-libgcc-file-name) CONFIG_USE_PRIVATE_LIBGCC := arch/x86/lib diff --git a/arch/x86/cpu/config.mk b/arch/x86/cpu/config.mk index c1568cacd0..4b2c873b0e 100644 --- a/arch/x86/cpu/config.mk +++ b/arch/x86/cpu/config.mk @@ -7,7 +7,7 @@ CROSS_COMPILE ?= i386-linux- -PLATFORM_CPPFLAGS += -DCONFIG_X86 -D__I386__ -march=i386 -Werror +PLATFORM_CPPFLAGS += -DCONFIG_X86 -D__I386__ -Werror # DO NOT MODIFY THE FOLLOWING UNLESS YOU REALLY KNOW WHAT YOU ARE DOING! LDPPFLAGS += -DRESET_SEG_START=0xffff0000 |