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https://github.com/FEX-Emu/linux.git
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80c59dafb1
This patch does two things:
* Ensure that asynchronous aborts are masked at kernel entry.
The bootloader should be masking these anyway, but this reduces
the damage window just in case it doesn't.
* Enter svc mode via exception return to ensure that CPU state is
properly serialised. This does not matter when switching from
an ordinary privileged mode ("PL1" modes in ARMv7-AR rev C
parlance), but it potentially does matter when switching from a
another privileged mode such as hyp mode.
This should allow the kernel to boot safely either from svc mode or
hyp mode, even if no support for use of the ARM Virtualization
Extensions is built into the kernel.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
88 lines
2.7 KiB
Makefile
88 lines
2.7 KiB
Makefile
#
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# Makefile for the linux kernel.
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#
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CPPFLAGS_vmlinux.lds := -DTEXT_OFFSET=$(TEXT_OFFSET)
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AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
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ifdef CONFIG_FUNCTION_TRACER
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CFLAGS_REMOVE_ftrace.o = -pg
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CFLAGS_REMOVE_insn.o = -pg
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CFLAGS_REMOVE_patch.o = -pg
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endif
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CFLAGS_REMOVE_return_address.o = -pg
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# Object file lists.
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obj-y := elf.o entry-armv.o entry-common.o irq.o opcodes.o \
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process.o ptrace.o return_address.o sched_clock.o \
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setup.o signal.o stacktrace.o sys_arm.o time.o traps.o
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obj-$(CONFIG_DEPRECATED_PARAM_STRUCT) += compat.o
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obj-$(CONFIG_LEDS) += leds.o
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obj-$(CONFIG_OC_ETM) += etm.o
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obj-$(CONFIG_CPU_IDLE) += cpuidle.o
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obj-$(CONFIG_ISA_DMA_API) += dma.o
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obj-$(CONFIG_FIQ) += fiq.o fiqasm.o
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obj-$(CONFIG_MODULES) += armksyms.o module.o
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obj-$(CONFIG_ARTHUR) += arthur.o
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obj-$(CONFIG_ISA_DMA) += dma-isa.o
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obj-$(CONFIG_PCI) += bios32.o isa.o
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obj-$(CONFIG_ARM_CPU_SUSPEND) += sleep.o suspend.o
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obj-$(CONFIG_SMP) += smp.o smp_tlb.o
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obj-$(CONFIG_HAVE_ARM_SCU) += smp_scu.o
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obj-$(CONFIG_HAVE_ARM_TWD) += smp_twd.o
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obj-$(CONFIG_ARM_ARCH_TIMER) += arch_timer.o
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obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o insn.o
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obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o insn.o
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obj-$(CONFIG_JUMP_LABEL) += jump_label.o insn.o patch.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
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obj-$(CONFIG_KPROBES) += kprobes.o kprobes-common.o patch.o
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ifdef CONFIG_THUMB2_KERNEL
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obj-$(CONFIG_KPROBES) += kprobes-thumb.o
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else
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obj-$(CONFIG_KPROBES) += kprobes-arm.o
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endif
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obj-$(CONFIG_ARM_KPROBES_TEST) += test-kprobes.o
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test-kprobes-objs := kprobes-test.o
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ifdef CONFIG_THUMB2_KERNEL
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test-kprobes-objs += kprobes-test-thumb.o
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else
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test-kprobes-objs += kprobes-test-arm.o
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endif
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obj-$(CONFIG_ATAGS_PROC) += atags.o
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obj-$(CONFIG_OABI_COMPAT) += sys_oabi-compat.o
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obj-$(CONFIG_ARM_THUMBEE) += thumbee.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_ARM_UNWIND) += unwind.o
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obj-$(CONFIG_HAVE_TCM) += tcm.o
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obj-$(CONFIG_OF) += devtree.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
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obj-$(CONFIG_SWP_EMULATE) += swp_emulate.o
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CFLAGS_swp_emulate.o := -Wa,-march=armv7-a
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obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
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obj-$(CONFIG_CPU_XSCALE) += xscale-cp0.o
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obj-$(CONFIG_CPU_XSC3) += xscale-cp0.o
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obj-$(CONFIG_CPU_MOHAWK) += xscale-cp0.o
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obj-$(CONFIG_CPU_PJ4) += pj4-cp0.o
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obj-$(CONFIG_IWMMXT) += iwmmxt.o
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obj-$(CONFIG_CPU_HAS_PMU) += pmu.o
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obj-$(CONFIG_HW_PERF_EVENTS) += perf_event.o
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AFLAGS_iwmmxt.o := -Wa,-mcpu=iwmmxt
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obj-$(CONFIG_ARM_CPU_TOPOLOGY) += topology.o
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ifneq ($(CONFIG_ARCH_EBSA110),y)
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obj-y += io.o
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endif
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head-y := head$(MMUEXT).o
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obj-$(CONFIG_DEBUG_LL) += debug.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-$(CONFIG_ARM_VIRT_EXT) += hyp-stub.o
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extra-y := $(head-y) vmlinux.lds
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