programs that are compiled with non-default regparm values are
miscompiled if they use libgcc.
This patch works around the problem for coreboot.
Please mention the GCC bugreport # in the source near every workaround;
that way, you can one day get rid of it. This is PR41055.
makerule coreboot_ram.o
depends "src/arch/$(CONFIG_ARCH)/lib/c_start.o $(DRIVER)
coreboot.a $(LIBGCC_FILE_NAME)"
- action "$(CC) $(DISTRO_LFLAGS) -nostdlib -r -o $@ src/arch/$
(CONFIG_ARCH)/lib/c_start.o $(DRIVER) -Wl,-\( coreboot.a $
(LIBGCC_FILE_NAME) -Wl,-\)"
+ action "$(CC) $(DISTRO_LFLAGS) -nostdlib -r -o $@ src/arch/$
(CONFIG_ARCH)/lib/c_start.o $(DRIVER) -Wl,--wrap,__divdi3 -Wl,--
wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,-\
( coreboot.a $(LIBGCC_FILE_NAME) -Wl,-\)"
end
You don't need the -( -) here, FWIW. libgcc does not require symbols
from
coreboot.a ;-)
Segher
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