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https://github.com/ibm-s390-linux/s390-tools.git
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e6ac87d7a2
Commitc5a91199e3("zipl: Always build and link without PIE.") introduced -fno-pie (for compilation) and -no-pie (for linking) for zipl. At the time the linker was still used directly before commit5e46632767("zipl: Use the compiler for linking instead of ld") eventually switched to calling the compiler for the linking step. During that adaption -static was introduced to the linker flags. -no-pie was carried over as well. However -static implies -no-pie and it is therefore not required. For GCC see also man 1 gcc (-static) [1]. Whilst not explicitly documented, Clang shows the same behaviour. Clang also complains when -static and -no-pie are specified in the linker step at the same time with the following warning: clang: warning: argument unused during compilation: '-no-pie' [-Wunused-command-line-argument] Since -no-pie is not required, remove it and get rid of the warning. [1] https://gcc.gnu.org/onlinedocs/gcc/Link-Options.html#index-static Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
121 lines
3.9 KiB
Makefile
121 lines
3.9 KiB
Makefile
# Common definitions
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include ../../common.mak
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EMBEDDED_BOOTLOADERS := fba0.bin fba1b.bin fba2.bin \
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eckd0_ldl.bin eckd0_cdl.bin \
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eckd1.bin eckd1b.bin eckd2.bin \
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tape0.bin \
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eckd2dump_sv.bin tape2dump.bin fba2dump.bin eckd2dump_mv.bin
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DEBUG_EMBEDDED_BOOTLOADERS := $(addsuffix .debug,$(EMBEDDED_BOOTLOADERS))
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EXTERNAL_BOOTLOADERS := stage3.bin
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DEBUG_EXTERNAL_BOOTLOADERS := $(addsuffix .debug,$(EXTERNAL_BOOTLOADERS))
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.loaders: $(EMBEDDED_BOOTLOADERS) $(DEBUG_EMBEDDED_BOOTLOADERS)
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touch .loaders
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.DEFAULT_GOAL := all
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all: .loaders $(EXTERNAL_BOOTLOADERS) $(DEBUG_EXTERNAL_BOOTLOADERS)
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clean:
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rm -f -- ./**/*.o *.o *.exec *.bin *.lds .*.lds.d .loaders *.debug
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.PHONY: all clean
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ifeq ($(HOST_ARCH),s390x)
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INCLUDE_PATHS := $(rootdir)/zipl/include $(rootdir)/include
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INCLUDE_PARMS := $(addprefix -I,$(INCLUDE_PATHS))
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ALL_CFLAGS = $(NO_PIE_CFLAGS) -Os -g $(INCLUDE_PARMS) \
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-DS390_TOOLS_RELEASE=$(S390_TOOLS_RELEASE) \
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-fno-builtin -ffreestanding -fno-asynchronous-unwind-tables \
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-fno-delete-null-pointer-checks -fno-stack-protector \
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-fexec-charset=IBM1047 -m64 -mpacked-stack \
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-mstack-size=4096 -mstack-guard=128 -msoft-float \
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-W -Wall -Wformat-security -fno-sanitize=all -Wno-array-bounds
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ALL_LDFLAGS += -fno-sanitize=all
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# Prevent make from using some default rules...
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%: %.S
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%.o: %.S
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$(CC) $(ALL_CFLAGS) -c -o $@ $<
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%.o: %.c
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$(CC) $(ALL_CFLAGS) -c -o $@ $<
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# Dependencies for the .lds generation
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sources_lds_S = $(wildcard *.lds.S)
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dependencies_lds_S = $(sources_lds_S:%.lds.S=.%.lds.d)
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# Include all ".lds.d" dependency files for all make targets except for "clean"
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ifneq ($(MAKECMDGOALS),clean)
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-include $(dependencies_lds_S)
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endif
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%.lds: %.lds.S
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$(CPP) -Wp,-MD,.$@.d,-MT,$@ $(INCLUDE_PARMS) -P -C -o $@ $<
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eckd2dump_sv.lds: eckd2dump.lds.S
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$(CPP) -Wp,-MD,.$@.d,-MT,$@ $(INCLUDE_PARMS) -D STAGE2DUMP_TAIL_ADDRESS=0x9ff0 \
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-P -C -o $@ $<
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eckd2dump_mv.lds: eckd2dump.lds.S
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$(CPP) -Wp,-MD,.$@.d,-MT,$@ $(INCLUDE_PARMS) -D STAGE2DUMP_TAIL_ADDRESS=0x5ff0 \
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-D ECKD2DUMP_MV -P -C -o $@ $<
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stage2.lds: stage2.lds.S
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$(CPP) -Wp,-MD,.$@.d,-MT,$@ $(INCLUDE_PARMS) -D STAGE2DUMP_TAIL_ADDRESS=0x4ff0 \
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-P -C -o $@ $<
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fba0.exec eckd0_ldl.exec eckd0_cdl.exec tape0.exec: \
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stage0.lds
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eckd1.exec: \
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stage1.lds
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eckd1b.exec fba1b.exec: \
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stage1b.lds
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eckd2dump_sv.exec: \
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head.o stage2dump.o cio.o eckd2dump.o eckd2dump_sv.o eckd2dump_zlib.o \
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zlib/deflate.o zlib/deftree.o zlib/dfltcc.o zlib/dfltcc_deflate.o \
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libc.o ebcdic.o sclp.o entry.o eckd2dump_sv.lds
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eckd2dump_mv.exec: \
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head.o stage2dump.o cio.o eckd2dump.o eckd2dump_mv.o \
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libc.o ebcdic.o sclp.o entry.o eckd2dump_mv.lds
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fba2dump.exec: \
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head.o stage2dump.o cio.o fba2dump.o \
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libc.o ebcdic.o sclp.o entry.o stage2.lds
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tape2dump.exec: \
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head.o stage2dump.o cio.o tape2dump.o \
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libc.o ebcdic.o sclp.o entry.o stage2.lds
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eckd2.exec: head.o stage2.o cio.o eckd2.o libc.o ebcdic.o menu.o sclp.o \
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kdump2.o kdump.o entry.o stage2.lds
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fba2.exec: head.o stage2.o cio.o fba2.o libc.o ebcdic.o menu.o sclp.o \
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kdump2.o kdump.o entry.o stage2.lds
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stage3.exec: head.o stage3.o kdump3.o libc.o ebcdic.o ebcdic_conv.o sclp.o \
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sclp_stage3.o kdump.o entry.o stage3.lds
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%.exec: %.o
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$(LINK) -Wl,-T,$(filter %.lds,$^) $(NO_WARN_RWX_SEGMENTS_LDFLAGS) -Wl,--build-id=none -m64 -static -nostdlib $(filter %.o, $^) -o $@
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@chmod a-x $@
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%.bin.debug: %.exec
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$(OBJCOPY) --only-keep-debug $< $@
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@chmod a-x $@
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%.bin: %.exec
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$(OBJCOPY) -O binary $< $@
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@chmod a-x $@
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install: $(EXTERNAL_BOOTLOADERS)
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$(INSTALL) -d -m 755 $(DESTDIR)$(TOOLS_LIBDIR)
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$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 $(EXTERNAL_BOOTLOADERS) $(DESTDIR)$(TOOLS_LIBDIR)
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else
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# Don't generate the dependency files (see `common.mak` for the
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# `-include $(dependencies_c)` statement).
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.PHONY: $(dependencies_c)
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$(EMBEDDED_BOOTLOADERS) $(DEBUG_EMBEDDED_BOOTLOADERS) $(EXTERNAL_BOOTLOADERS) $(DEBUG_EXTERNAL_BOOTLOADERS):
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echo " SKIP $@ due to HOST_ARCH != s390x"
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install:
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echo " SKIP Bootloader installation due to HOST_ARCH != s390x"
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endif
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