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There is no reason to have this code in assembly language. Therefore convert it to C. Note that this code needs special treatment: it is called very early and one of the side effects is that e.g. the bss section is not cleared. Therefore the preferred way for static variables is to put them on the stack which has a size of 16KB. There is no functional change with this patch. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
83 lines
2.5 KiB
Makefile
83 lines
2.5 KiB
Makefile
#
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# Makefile for the linux kernel.
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#
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KCOV_INSTRUMENT_early.o := n
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KCOV_INSTRUMENT_sclp.o := n
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KCOV_INSTRUMENT_als.o := n
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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 and als.c to be able to print an error
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# message if 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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CFLAGS_REMOVE_als.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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CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH)
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CFLAGS_als.o += -march=z900
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AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH)
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AFLAGS_head.o += -march=z900
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endif
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GCOV_PROFILE_sclp.o := n
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obj-y := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
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obj-y += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
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obj-y += debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o als.o
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obj-y += sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
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obj-y += runtime_instr.o cache.o fpu.o dumpstack.o
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obj-y += entry.o reipl.o relocate_kernel.o
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extra-y += head.o head64.o vmlinux.lds
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obj-$(CONFIG_MODULES) += s390_ksyms.o module.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_SCHED_TOPOLOGY) += 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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obj-$(CONFIG_TRACEPOINTS) += trace.o
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# vdso
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obj-y += vdso64/
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obj-$(CONFIG_COMPAT) += vdso32/
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