ac4fac8cb2
This splits out the unwinder implementation and adds a new return_address() abstraction modelled after the ARM code. The DWARF unwinder is tied in to this, returning NULL otherwise in the case of being unable to support arbitrary depths. This enables us to get correct behaviour with the unwinder enabled, as well as disabling the arbitrary depth support when frame pointers are enabled, as arbitrary depths with __builtin_return_address() are not supported regardless. With this abstraction it's also possible to layer on a simplified implementation with frame pointers in the event that the unwinder isn't enabled, although this is left as a future exercise. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
42 lines
1.4 KiB
Makefile
42 lines
1.4 KiB
Makefile
#
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# Makefile for the Linux/SuperH kernel.
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#
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extra-y := head_$(BITS).o init_task.o vmlinux.lds
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ifdef CONFIG_FUNCTION_TRACER
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# Do not profile debug and lowlevel utilities
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CFLAGS_REMOVE_ftrace.o = -pg
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endif
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obj-y := debugtraps.o dumpstack.o idle.o io.o io_generic.o irq.o \
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machvec.o nmi_debug.o process_$(BITS).o ptrace_$(BITS).o \
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return_address.o \
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setup.o signal_$(BITS).o sys_sh.o sys_sh$(BITS).o \
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syscalls_$(BITS).o time.o topology.o traps.o \
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traps_$(BITS).o unwinder.o
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obj-y += cpu/
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obj-$(CONFIG_VSYSCALL) += vsyscall/
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o
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obj-$(CONFIG_MODULES) += sh_ksyms_$(BITS).o module.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-$(CONFIG_IO_TRAPPED) += io_trapped.o
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obj-$(CONFIG_KPROBES) += kprobes.o
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obj-$(CONFIG_GENERIC_GPIO) += gpio.o
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obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
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obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
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obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
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obj-$(CONFIG_DUMP_CODE) += disassemble.o
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obj-$(CONFIG_HIBERNATION) += swsusp.o
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obj-$(CONFIG_DWARF_UNWINDER) += dwarf.o
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obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) += localtimer.o
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EXTRA_CFLAGS += -Werror
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