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22362a0e23
The 31-bit assembler code for the early sclp console is error prone as git commit fde24b54d976cc123506695c17db01438a11b673 "s390/sclp: clear upper register halves in _sclp_print_early" has shown. Convert the assembler code to C. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
72 lines
2.2 KiB
Makefile
72 lines
2.2 KiB
Makefile
#
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# Makefile for the linux kernel.
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#
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ifdef CONFIG_FUNCTION_TRACER
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# Don't trace early setup code and tracing code
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CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
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endif
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#
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# Passing null pointers is ok for smp code, since we access the lowcore here.
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#
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CFLAGS_smp.o := -Wno-nonnull
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#
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# Disable tailcall optimizations for stack / callchain walking functions
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# since this might generate broken code when accessing register 15 and
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# passing its content to other functions.
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#
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CFLAGS_stacktrace.o += -fno-optimize-sibling-calls
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CFLAGS_dumpstack.o += -fno-optimize-sibling-calls
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#
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# Pass UTS_MACHINE for user_regset definition
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#
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CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"'
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CFLAGS_sysinfo.o += -w
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#
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# Use -march=z900 for sclp.c to be able to print an error message if
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# the kernel is started on a machine which is too old
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#
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CFLAGS_REMOVE_sclp.o = $(CC_FLAGS_FTRACE)
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ifneq ($(CC_FLAGS_MARCH),-march=z900)
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CFLAGS_REMOVE_sclp.o += $(CC_FLAGS_MARCH)
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CFLAGS_sclp.o += -march=z900
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endif
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GCOV_PROFILE_sclp.o := n
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obj-y := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
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obj-y += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
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obj-y += debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o
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obj-y += sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
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obj-y += runtime_instr.o cache.o dumpstack.o
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obj-y += entry.o reipl.o relocate_kernel.o
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extra-y += head.o head64.o vmlinux.lds
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obj-$(CONFIG_MODULES) += s390_ksyms.o module.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_SCHED_BOOK) += topology.o
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obj-$(CONFIG_HIBERNATION) += suspend.o swsusp.o
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obj-$(CONFIG_AUDIT) += audit.o
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compat-obj-$(CONFIG_AUDIT) += compat_audit.o
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obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o
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obj-$(CONFIG_COMPAT) += compat_wrapper.o $(compat-obj-y)
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-$(CONFIG_KPROBES) += kprobes.o
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obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
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obj-$(CONFIG_UPROBES) += uprobes.o
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obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf.o perf_cpum_sf.o
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obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o
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# vdso
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obj-y += vdso64/
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obj-$(CONFIG_COMPAT) += vdso32/
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