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>
78 lines
2.8 KiB
Makefile
78 lines
2.8 KiB
Makefile
#
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# Makefile for the Linux/MIPS kernel.
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#
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extra-y := head.o init_task.o vmlinux.lds
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obj-y += cpu-probe.o branch.o entry.o genex.o irq.o process.o \
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ptrace.o reset.o semaphore.o setup.o signal.o syscall.o \
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time.o topology.o traps.o unaligned.o
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binfmt_irix-objs := irixelf.o irixinv.o irixioctl.o irixsig.o \
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irix5sys.o sysirix.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-$(CONFIG_MODULES) += mips_ksyms.o module.o
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obj-$(CONFIG_CPU_LOONGSON2) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_MIPS32) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_MIPS64) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R3000) += r2300_fpu.o r2300_switch.o
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obj-$(CONFIG_CPU_R4000) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R4300) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R4X00) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R5000) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R6000) += r6000_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R5432) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R8000) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_RM7000) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_RM9000) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_NEVADA) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R10000) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_SB1) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o r2300_switch.o
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obj-$(CONFIG_CPU_TX49XX) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_VR41XX) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_MIPS_MT) += mips-mt.o
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obj-$(CONFIG_MIPS_MT_FPAFF) += mips-mt-fpaff.o
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obj-$(CONFIG_MIPS_MT_SMTC) += smtc.o smtc-asm.o smtc-proc.o
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obj-$(CONFIG_MIPS_MT_SMP) += smp-mt.o
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obj-$(CONFIG_MIPS_APSP_KSPD) += kspd.o
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obj-$(CONFIG_MIPS_VPE_LOADER) += vpe.o
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obj-$(CONFIG_MIPS_VPE_APSP_API) += rtlx.o
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obj-$(CONFIG_I8259) += i8259.o
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obj-$(CONFIG_IRQ_CPU) += irq_cpu.o
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obj-$(CONFIG_IRQ_CPU_RM7K) += irq-rm7000.o
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obj-$(CONFIG_IRQ_CPU_RM9K) += irq-rm9000.o
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obj-$(CONFIG_MIPS_BOARDS_GEN) += irq-msc01.o
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obj-$(CONFIG_IRQ_TXX9) += irq_txx9.o
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obj-$(CONFIG_IRQ_GT641XX) += irq-gt641xx.o
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obj-$(CONFIG_32BIT) += scall32-o32.o
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obj-$(CONFIG_64BIT) += scall64-64.o
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obj-$(CONFIG_BINFMT_IRIX) += binfmt_irix.o
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obj-$(CONFIG_MIPS32_COMPAT) += linux32.o ptrace32.o signal32.o
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obj-$(CONFIG_MIPS32_N32) += binfmt_elfn32.o scall64-n32.o signal_n32.o
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obj-$(CONFIG_MIPS32_O32) += binfmt_elfo32.o scall64-o32.o
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obj-$(CONFIG_KGDB) += gdb-low.o gdb-stub.o
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obj-$(CONFIG_PROC_FS) += proc.o
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obj-$(CONFIG_64BIT) += cpu-bugs64.o
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obj-$(CONFIG_I8253) += i8253.o
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obj-$(CONFIG_PCSPEAKER) += pcspeaker.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
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obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT) += 8250-platform.o
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EXTRA_CFLAGS += -Werror
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