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3b2db173f0
The kernel contains a small amount of incomplete code aimed at
supporting old R6000 CPUs. This is:
- Unused, as no machine selects CONFIG_SYS_HAS_CPU_R6000.
- Broken, since there are glaring errors such as r6000_fpu.S moving
the FCSR register to t1, then ignoring it & instead saving t0 into
struct sigcontext...
- A maintenance headache, since it's code that nobody can test which
nevertheless imposes constraints on code which it shares with other
machines.
Remove this incomplete & broken R6000 CPU support in order to clean up
and in preparation for changes which will no longer need to consider
dragging the pretense of R6000 support along with them.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16236/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
129 lines
4.3 KiB
Makefile
129 lines
4.3 KiB
Makefile
#
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# Makefile for the Linux/MIPS kernel.
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#
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extra-y := head.o vmlinux.lds
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obj-y += cmpxchg.o cpu-probe.o branch.o elf.o entry.o genex.o idle.o irq.o \
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process.o prom.o ptrace.o reset.o setup.o signal.o \
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syscall.o time.o topology.o traps.o unaligned.o watch.o \
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vdso.o cacheinfo.o
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ifdef CONFIG_FUNCTION_TRACER
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CFLAGS_REMOVE_ftrace.o = -pg
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CFLAGS_REMOVE_early_printk.o = -pg
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CFLAGS_REMOVE_perf_event.o = -pg
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CFLAGS_REMOVE_perf_event_mipsxx.o = -pg
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endif
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obj-$(CONFIG_CEVT_BCM1480) += cevt-bcm1480.o
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obj-$(CONFIG_CEVT_R4K) += cevt-r4k.o
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obj-$(CONFIG_CEVT_DS1287) += cevt-ds1287.o
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obj-$(CONFIG_CEVT_GT641XX) += cevt-gt641xx.o
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obj-$(CONFIG_CEVT_SB1250) += cevt-sb1250.o
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obj-$(CONFIG_CEVT_TXX9) += cevt-txx9.o
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obj-$(CONFIG_CSRC_BCM1480) += csrc-bcm1480.o
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obj-$(CONFIG_CSRC_IOASIC) += csrc-ioasic.o
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obj-$(CONFIG_CSRC_R4K) += csrc-r4k.o
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obj-$(CONFIG_CSRC_SB1250) += csrc-sb1250.o
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obj-$(CONFIG_SYNC_R4K) += sync-r4k.o
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obj-$(CONFIG_DEBUG_FS) += segment.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-$(CONFIG_MODULES) += module.o
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obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
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obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o
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obj-$(CONFIG_CPU_R4K_FPU) += r4k_fpu.o r4k_switch.o
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obj-$(CONFIG_CPU_R3000) += r2300_fpu.o r2300_switch.o
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obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o r2300_switch.o
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obj-$(CONFIG_CPU_CAVIUM_OCTEON) += r4k_fpu.o octeon_switch.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_SMP_UP) += smp-up.o
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obj-$(CONFIG_CPU_BMIPS) += smp-bmips.o bmips_vec.o bmips_5xxx_init.o
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obj-$(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_SMP) += smp-mt.o
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obj-$(CONFIG_MIPS_CMP) += smp-cmp.o
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obj-$(CONFIG_MIPS_CPS) += smp-cps.o cps-vec.o
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obj-$(CONFIG_MIPS_CPS_NS16550) += cps-vec-ns16550.o
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obj-$(CONFIG_MIPS_SPRAM) += spram.o
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obj-$(CONFIG_MIPS_VPE_LOADER) += vpe.o
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obj-$(CONFIG_MIPS_VPE_LOADER_CMP) += vpe-cmp.o
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obj-$(CONFIG_MIPS_VPE_LOADER_MT) += vpe-mt.o
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obj-$(CONFIG_MIPS_VPE_APSP_API) += rtlx.o
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obj-$(CONFIG_MIPS_VPE_APSP_API_CMP) += rtlx-cmp.o
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obj-$(CONFIG_MIPS_VPE_APSP_API_MT) += rtlx-mt.o
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obj-$(CONFIG_IRQ_CPU_RM7K) += irq-rm7000.o
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obj-$(CONFIG_MIPS_MSC) += 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-$(CONFIG_KPROBES) += kprobes.o
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obj-$(CONFIG_32BIT) += scall32-o32.o
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obj-$(CONFIG_64BIT) += scall64-64.o
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obj-$(CONFIG_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 signal_o32.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_PROC_FS) += proc.o
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obj-$(CONFIG_MAGIC_SYSRQ) += sysrq.o
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obj-$(CONFIG_64BIT) += cpu-bugs64.o
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obj-$(CONFIG_I8253) += i8253.o
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obj-$(CONFIG_GPIO_TXX9) += gpio_txx9.o
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obj-$(CONFIG_RELOCATABLE) += relocate.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-$(CONFIG_EARLY_PRINTK_8250) += early_printk_8250.o
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obj-$(CONFIG_SPINLOCK_TEST) += spinlock_test.o
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obj-$(CONFIG_MIPS_MACHINE) += mips_machine.o
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obj-$(CONFIG_MIPSR2_TO_R6_EMULATOR) += mips-r2-to-r6-emul.o
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CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -x c /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
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obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT) += 8250-platform.o
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obj-$(CONFIG_PERF_EVENTS) += perf_event.o
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obj-$(CONFIG_HW_PERF_EVENTS) += perf_event_mipsxx.o
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obj-$(CONFIG_JUMP_LABEL) += jump_label.o
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obj-$(CONFIG_UPROBES) += uprobes.o
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obj-$(CONFIG_MIPS_CM) += mips-cm.o
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obj-$(CONFIG_MIPS_CPC) += mips-cpc.o
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obj-$(CONFIG_CPU_PM) += pm.o
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obj-$(CONFIG_MIPS_CPS_PM) += pm-cps.o
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#
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# DSP ASE supported for MIPS32 or MIPS64 Release 2 cores only. It is not
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# safe to unconditionnaly use the assembler -mdsp / -mdspr2 switches
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# here because the compiler may use DSP ASE instructions (such as lwx) in
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# code paths where we cannot check that the CPU we are running on supports it.
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# Proper abstraction using HAVE_AS_DSP and macros is done in
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# arch/mips/include/asm/mipsregs.h.
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#
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ifeq ($(CONFIG_CPU_MIPSR2), y)
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CFLAGS_DSP = -DHAVE_AS_DSP
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CFLAGS_signal.o = $(CFLAGS_DSP)
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CFLAGS_signal32.o = $(CFLAGS_DSP)
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CFLAGS_process.o = $(CFLAGS_DSP)
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CFLAGS_branch.o = $(CFLAGS_DSP)
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CFLAGS_ptrace.o = $(CFLAGS_DSP)
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endif
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CPPFLAGS_vmlinux.lds := $(KBUILD_CFLAGS)
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