a0f97e06a4
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>
26 lines
614 B
Plaintext
26 lines
614 B
Plaintext
# Copyright 2003 - 2004 Pathscale, Inc
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# Released under the GPL
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core-y += arch/um/sys-x86_64/ arch/x86_64/crypto/
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START := 0x60000000
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_extra_flags_ = -fno-builtin -m64
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#We #undef __x86_64__ for kernelspace, not for userspace where
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#it's needed for headers to work!
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ARCH_KERNEL_DEFINES = -U__$(SUBARCH)__
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KBUILD_CFLAGS += $(_extra_flags_)
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CHECKFLAGS += -m64
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AFLAGS += -m64
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LDFLAGS += -m elf_x86_64
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CPPFLAGS += -m64
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ELF_ARCH := i386:x86-64
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ELF_FORMAT := elf64-x86-64
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# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example.
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LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64
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LINK-y += -m64
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