linux/arch/alpha/lib/Makefile
Sam Ravnborg a0f97e06a4 kbuild: enable 'make CFLAGS=...' to add additional options to CC
The variable CFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.

This patch replace use of CFLAGS with KBUILD_CFLAGS all over the
tree and enabling one to use:
make CFLAGS=...
to specify additional gcc commandline options.

One usecase is when trying to find gcc bugs but other
use cases has been requested too.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k

Test was simple to do a defconfig build, apply the patch and check
that nothing got rebuild.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-14 22:21:35 +02:00

58 lines
1.4 KiB
Makefile

#
# Makefile for alpha-specific library files..
#
EXTRA_AFLAGS := $(KBUILD_CFLAGS)
EXTRA_CFLAGS := -Werror
# Many of these routines have implementations tuned for ev6.
# Choose them iff we're targeting ev6 specifically.
ev6-$(CONFIG_ALPHA_EV6) := ev6-
# Several make use of the cttz instruction introduced in ev67.
ev67-$(CONFIG_ALPHA_EV67) := ev67-
lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \
udelay.o \
$(ev6-y)memset.o \
$(ev6-y)memcpy.o \
memmove.o \
checksum.o \
csum_partial_copy.o \
$(ev67-y)strlen.o \
$(ev67-y)strcat.o \
strcpy.o \
$(ev67-y)strncat.o \
strncpy.o \
$(ev6-y)stxcpy.o \
$(ev6-y)stxncpy.o \
$(ev67-y)strchr.o \
$(ev67-y)strrchr.o \
$(ev6-y)memchr.o \
$(ev6-y)copy_user.o \
$(ev6-y)clear_user.o \
$(ev6-y)strncpy_from_user.o \
$(ev67-y)strlen_user.o \
$(ev6-y)csum_ipv6_magic.o \
$(ev6-y)clear_page.o \
$(ev6-y)copy_page.o \
fpreg.o \
callback_srm.o srm_puts.o srm_printk.o \
fls.o
lib-$(CONFIG_SMP) += dec_and_lock.o
# The division routines are built from single source, with different defines.
AFLAGS___divqu.o = -DDIV
AFLAGS___remqu.o = -DREM
AFLAGS___divlu.o = -DDIV -DINTSIZE
AFLAGS___remlu.o = -DREM -DINTSIZE
$(obj)/__divqu.o: $(obj)/$(ev6-y)divide.S
$(cmd_as_o_S)
$(obj)/__remqu.o: $(obj)/$(ev6-y)divide.S
$(cmd_as_o_S)
$(obj)/__divlu.o: $(obj)/$(ev6-y)divide.S
$(cmd_as_o_S)
$(obj)/__remlu.o: $(obj)/$(ev6-y)divide.S
$(cmd_as_o_S)