mirror of
https://github.com/ibm-s390-linux/s390-tools.git
synced 2026-08-05 02:14:52 +00:00
9ada8332d8
Currently, each generated loader binary is linked into one data.o object file which is then linked against boot.o. The data.o file is also used to generate the data.h header file using nm, which will contain all symbols required by zipl. The linking process is somewhat depended on the directory, as the symbol names are derived from the file names of the input files, which is the default behavior of the linker. The file name in this case being the entire path. Examples for the current situation (starting from root dir in each case): $ cd zipl/boot && make eckd0_cdl.bin $ cc -no-pie -static -nostdlib -Wl,--relocatable -Wl,--format,binary -o data.o eckd0_cdl.bin $ nm data.o 0000000000000018 D _binary_eckd0_cdl_bin_end 0000000000000018 A _binary_eckd0_cdl_bin_size 0000000000000000 D _binary_eckd0_cdl_bin_start $ make -C zipl/boot eckd0_cdl.bin $ cc -no-pie -static -nostdlib -Wl,--relocatable -Wl,--format,binary -o data.o zipl/boot/eckd0_cdl.bin $ nm data.o 000000000000018 D _binary_zipl_boot_eckd0_cdl_bin_end 000000000000018 A _binary_zipl_boot_eckd0_cdl_bin_size 000000000000000 D _binary_zipl_boot_eckd0_cdl_bin_start The example above shows that the entire path would end up in the symbol name if specified that way. To make this more robust, future proof, and get more control of the resulting symbol names, use '.incbin' and some macros for embedding the loader binary files. This also reduces the linker step and the generation of the data.h header file. Reviewed-by: Steffen Eiden <seiden@linux.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com> Co-developed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
435 lines
14 KiB
Makefile
435 lines
14 KiB
Makefile
ifndef $(COMMON_INCLUDED)
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COMMON_INCLUDED = true
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# Global definitions
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# The variable "DISTRELEASE" should be overwritten in rpm spec files with:
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# "make DISTRELEASE=%{release}" and "make install DISTRELEASE=%{release}"
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VERSION = 2
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RELEASE = 25
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PATCHLEVEL = 0
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DISTRELEASE = build-$(shell date +%Y%m%d)
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S390_TOOLS_RELEASE = $(VERSION).$(RELEASE).$(PATCHLEVEL)-$(DISTRELEASE)
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export S390_TOOLS_RELEASE
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reldir = $(subst $(shell cd -P $(dir $(filter %common.mak,$(MAKEFILE_LIST))); \
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pwd)/,,$(CURDIR))
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rootdir= $(dir $(filter %common.mak,$(MAKEFILE_LIST)))
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export S390_TEST_LIB_PATH=$(rootdir)/s390-tools-testsuite/lib
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#
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# For cross compiles specify CROSS_COMPILE= on the commandline:
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#
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# $ make CROSS_COMPILE="s390x-5.1.0-"
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#
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CROSS_COMPILE =
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#
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# Commands can be overwritten on the command line with "make <VAR>=<VALUE>":
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#
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# $ make CC=gcc-4.8
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#
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# The "cmd_define" macro wraps the command definition so that the commands
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# can be user supplied and are still pretty-printed for the build process.
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#
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# The macro is called with the following parameters:
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#
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# $(1) - Used command variable in the Makefiles
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# $(2) - Pretty Print output for the command
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# $(3) - Default command if not user-specified
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#
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# The Example below...
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#
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# $(eval $(call cmd_define, CC," CC ",$(CROSS_COMPILE)gcc))
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#
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# ... produces the following code:
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#
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# CC = $(CROSS_COMPILE)gcc
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# CC_SILENT := $(CC)
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# override CC = $(call echocmd," CC ",/$@)$(CC_SILENT)
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#
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# The "strip" make function is used for the first parameter to allow blanks,
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# which improves readability.
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#
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define cmd_define
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$(strip $(1)) = $(3)
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$(strip $(1))_SILENT := $$($(strip $(1)))
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override $(strip $(1)) = $$(call echocmd,$(2),/$$@)$$($(strip $(1))_SILENT)
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endef
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$(eval $(call cmd_define, AS," AS ",$(CROSS_COMPILE)as))
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$(eval $(call cmd_define, CC," CC ",$(CROSS_COMPILE)gcc))
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$(eval $(call cmd_define, LINK," LINK ",$(CC)))
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$(eval $(call cmd_define, HOSTCC," HOSTCC ",gcc))
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$(eval $(call cmd_define, CXX," CXX ",$(CROSS_COMPILE)g++))
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$(eval $(call cmd_define, LINKXX," LINKXX ",$(CXX)))
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$(eval $(call cmd_define, CPP," CPP ",$(CROSS_COMPILE)gcc -E))
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$(eval $(call cmd_define, AR," AR ",$(CROSS_COMPILE)ar))
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$(eval $(call cmd_define, NM," NM ",$(CROSS_COMPILE)nm))
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$(eval $(call cmd_define, STRIP," STRIP ",$(CROSS_COMPILE)strip))
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$(eval $(call cmd_define,OBJCOPY," OBJCOPY ",$(CROSS_COMPILE)objcopy))
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$(eval $(call cmd_define,OBJDUMP," OBJDUMP ",$(CROSS_COMPILE)objdump))
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$(eval $(call cmd_define,RUNTEST," RUNTEST ",$(S390_TEST_LIB_PATH)/s390_runtest))
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$(eval $(call cmd_define, CAT," CAT ",cat))
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$(eval $(call cmd_define, SED," SED ",sed))
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$(eval $(call cmd_define, GZIP," GZIP ",gzip))
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$(eval $(call cmd_define, MV," MV ",mv))
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CHECK = sparse
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CHECK_SILENT := $(CHECK)
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CHECKTOOL = $(call echocmd," CHECK ",/$@)$(CHECK_SILENT)
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SKIP = echo " SKIP $(call reldir) due to"
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INSTALL = install
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CP = cp
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ifneq ("${V}","1")
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MAKEFLAGS += --quiet
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echocmd=echo $1$(call reldir)$2;
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RUNTEST += > /dev/null 2>&1
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else
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echocmd=
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endif
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DEFAULT_CFLAGS = -g -fstack-protector-all -W -Wall -Wformat-security
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ifeq ("${W}","1")
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DEFAULT_CFLAGS += -Wextra -Wshadow -Wundef -Wuninitialized -Wdouble-promotion -Wconversion
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endif
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ifeq ("${D}","1")
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DEFAULT_CFLAGS += -Og -g3 -ggdb3
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else
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DEFAULT_CFLAGS += -O3
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endif
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DEFAULT_CPPFLAGS = -D_GNU_SOURCE
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DEFAULT_LDFLAGS = -rdynamic
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ifeq ("${ASAN}","1")
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DEFAULT_CFLAGS += -fsanitize=address -fno-omit-frame-pointer
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DEFAULT_LDFLAGS += -fsanitize=address
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endif
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#
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# Check for header prerequisite
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#
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# $1: Name of include file to check
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# $2: Additional compiler & linker options (optional)
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#
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# Returns "yes" on success and nothing otherwise
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#
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define check_header_prereq
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$(shell printf "#include <%s>\n int main(void) {return 0;}\n" $1 | \
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( $(CC) $(filter-out --coverage, $(ALL_CFLAGS)) $(ALL_CPPFLAGS) \
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$2 -o /dev/null -x c - ) >/dev/null 2>&1 && echo -n yes)
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endef
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#
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# Check for build dependency
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#
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# $1: Name of tool or feature that requires dependency
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# $2: Name of include file to check
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# $3: Name of required devel package
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# $4: Option to skip build (e.g. HAVE_FUSE=0)
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# $5: Additional compiler & linker options (optional)
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#
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check_dep=\
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printf "\#include <%s>\n int main(void) {return 0;}\n" $2 | ( $(CC) $(filter-out --coverage, $(ALL_CFLAGS)) $(ALL_CPPFLAGS) $5 -o /dev/null -x c - ) > /dev/null 2>&1; \
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if [ $$? != 0 ]; \
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then \
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printf " REQCHK %s (%s)\n" $1 $2; \
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printf "********************************************************************************\n" >&2; \
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printf "* Missing build requirement for: %-45s *\n" $1 >&2; \
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printf "* Install package..............: %-45s *\n" $3 >&2; \
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printf "* You can skip build with......: make %-40s *\n" $4 >&2; \
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printf "********************************************************************************\n" >&2; \
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exit 1; \
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fi
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#
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# Test for linker option
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#
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# $1: Linker option
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#
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# Returns the linker option if available and nothing otherwise
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#
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define test_linker_flag
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$(shell printf "int main(void) {return 0;}\n" | \
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( $(CC) "-Wl,$1" -o /dev/null -x c - ) >/dev/null 2>&1 && printf -- '-Wl,%s' "$1")
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endef
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NO_WARN_RWX_SEGMENTS_LDFLAGS := $(call test_linker_flag,"--no-warn-rwx-segments")
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#
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# Support alternate install root
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#
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# INSTALLDIR: Finally install s390-tools to INSTALLDIR. This can be used
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# for testing locally installed tools.
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# DESTDIR: Temporary install s390-tools to this directory. This can be
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# used for building s390-tools e.g. with rpmbuild.
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#
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# The difference between INSTALLDIR and DESTDIR is that for INSTALLDIR
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# internally used directories (e.g. for config files) are adjusted.
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#
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# Example:
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#
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# $ cd cpumf
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# $ INSTALLDIR=/tmp make install
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# $ cat /tmp/lib/s390-tools/cpumf_helper | grep DATA_DIR
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# my $CPUMF_DATA_DIR = '/tmp/usr/share/s390-tools/cpumf';
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#
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# $ make clean
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# $ DESTDIR=/tmp make install
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# $ cat /tmp/lib/s390-tools/cpumf_helper | grep DATA_DIR
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# my $CPUMF_DATA_DIR = '/usr/share/s390-tools/cpumf';
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#
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ifdef INSTROOT
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$(error INSTROOT is no longer available, use DESTDIR instead)
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endif
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INSTALLDIR ?=
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DESTDIR ?=
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USRSBINDIR = $(INSTALLDIR)/usr/sbin
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USRBINDIR = $(INSTALLDIR)/usr/bin
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BINDIR = $(INSTALLDIR)/sbin
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LIBDIR = $(INSTALLDIR)/lib
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USRLIBDIR = $(INSTALLDIR)/usr/lib
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USRLIB64DIR = $(INSTALLDIR)/usr/lib64
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SYSCONFDIR = $(INSTALLDIR)/etc
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MANDIR = $(INSTALLDIR)/usr/share/man
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VARDIR = $(INSTALLDIR)/var
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TOOLS_DATADIR = $(INSTALLDIR)/usr/share/s390-tools
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TOOLS_LIBDIR = $(INSTALLDIR)/lib/s390-tools
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ZFCPDUMP_DIR = $(TOOLS_LIBDIR)/zfcpdump
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# Systemd support files are installed only if a directory is specified
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# for SYSTEMDSYSTEMUNITDIR (e.g. /lib/systemd/system)
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SYSTEMDSYSTEMUNITDIR =
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USRINCLUDEDIR = $(INSTALLDIR)/usr/include
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ZKEYKMSPLUGINDIR = $(USRLIB64DIR)/zkey
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UDEVDIR = $(USRLIBDIR)/udev
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UDEVRULESDIR = $(UDEVDIR)/rules.d
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DRACUTDIR = $(USRLIBDIR)/dracut
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DRACUTCONFDIR = $(DRACUTDIR)/dracut.conf.d
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DRACUTMODDIR = $(DRACUTDIR)/modules.d
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ifeq ($(LIBDIR),$(INSTALLDIR)/lib)
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SOINSTALLDIR = $(USRLIB64DIR)
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else
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SOINSTALLDIR = $(LIBDIR)
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endif
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INSTDIRS = $(USRSBINDIR) $(USRBINDIR) $(BINDIR) $(LIBDIR) $(MANDIR) \
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$(SYSCONFDIR) $(SYSCONFDIR)/sysconfig \
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$(TOOLS_LIBDIR) $(TOOLS_DATADIR) \
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$(ZFCPDUMP_DIR) $(SYSTEMDSYSTEMUNITDIR) \
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$(USRLIB64DIR) $(USRINCLUDEDIR) $(ZKEYKMSPLUGINDIR) \
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$(SOINSTALLDIR) $(USRLIBDIR)
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OWNER = $(shell id -un)
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GROUP = $(shell id -gn)
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export INSTALLDIR BINDIR LIBDIR USRLIBDIR USRLIB64DIR MANDIR OWNER GROUP
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# Special defines for zfcpdump
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ZFCPDUMP_IMAGE = zfcpdump-image
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ZFCPDUMP_INITRD = zfcpdump-initrd
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ZFCPDUMP_FLAVOR = zfcpdump
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export ZFCPDUMP_DIR ZFCPDUMP_IMAGE ZFCPDUMP_INITRD ZFCPDUMP_FLAVOR
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CFLAGS ?= $(DEFAULT_CFLAGS) $(OPT_FLAGS)
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HOSTCFLAGS ?= $(DEFAULT_CFLAGS) $(OPT_FLAGS)
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CPPFLAGS ?= $(DEFAULT_CPPFLAGS)
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LDFLAGS ?= $(DEFAULT_LDFLAGS)
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ALL_CFLAGS = -DS390_TOOLS_RELEASE=$(S390_TOOLS_RELEASE) \
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-DS390_TOOLS_LIBDIR=$(TOOLS_LIBDIR) \
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-DS390_TOOLS_DATADIR=$(TOOLS_DATADIR) \
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-DS390_TOOLS_SYSCONFDIR=$(SYSCONFDIR) \
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-DS390_TOOLS_BINDIR=$(BINDIR) \
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$(CFLAGS)
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CXXFLAGS ?= $(DEFAULT_CFLAGS) $(OPT_FLAGS)
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ALL_CXXFLAGS = -DS390_TOOLS_RELEASE=$(S390_TOOLS_RELEASE) \
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-DS390_TOOLS_LIBDIR=$(TOOLS_LIBDIR) \
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-DS390_TOOLS_DATADIR=$(TOOLS_DATADIR) \
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-DS390_TOOLS_SYSCONFDIR=$(SYSCONFDIR) \
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-DS390_TOOLS_BINDIR=$(BINDIR) \
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$(CXXFLAGS)
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ALL_CPPFLAGS = -I $(rootdir)include $(CPPFLAGS)
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ALL_LDFLAGS = $(LDFLAGS)
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# make G=1
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# Compile tools so that gcov can be used to collect code coverage data.
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# See the gcov man page for details.
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ifeq ("${G}","1")
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ALL_CFLAGS := $(filter-out -O%,$(ALL_CFLAGS)) --coverage
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ALL_CXXFLAGS := $(filter-out -O%,$(ALL_CXXFLAGS)) --coverage
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ALL_LDFLAGS += --coverage
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endif
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export AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP INSTALL CFLAGS CXXFLAGS \
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LDFLAGS CPPFLAGS ALL_CFLAGS ALL_CXXFLAGS ALL_LDFLAGS ALL_CPPFLAGS
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ifneq ($(shell $(CC_SILENT) -dumpspecs 2>/dev/null | grep -e '[^f]no-pie'),)
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NO_PIE_CFLAGS := -fno-pie
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NO_PIE_LDFLAGS := -no-pie
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else
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NO_PIE_CFLAGS :=
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NO_PIE_LDFLAGS :=
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endif
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# Overwrite implicit makefile rules for having nice compile output
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%.o: %.c
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ifeq ("${C}","1")
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$(CHECKTOOL) $(ALL_CPPFLAGS) $(ALL_CFLAGS) -c $< -o $@
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endif
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$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS) -c $< -o $@
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%.o: %.cpp
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$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS) -c $< -o $@
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%: %.o
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$(LINK) $(ALL_LDFLAGS) $^ $(LDLIBS) -o $@
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%.a:
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$(AR) rcs $@ $^
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all:
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help:
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@echo 'Usage: make [TARGETS] [OPTIONS]'
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@echo ''
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@echo 'TARGETS'
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@echo ' all Build all tools (default target)'
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@echo ' install Install tools'
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@echo ' clean Delete all generated files'
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@echo ''
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@echo 'OPTIONS'
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@echo ' D=1 Build with debugging option "-Og"'
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@echo ' C=1 Build with check tool defined with "CHECK=" (default=sparse)'
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@echo ' G=1 Build with gcov to collect code coverage data'
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@echo ' V=1 Generate verbose build output'
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@echo ' W=1 Build with higher warning level'
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@echo ' ASAN=1 Build with address sanitizer'
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@echo ''
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@echo 'EXAMPLES'
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@echo ' # make clean all D=1 W=1 -j'
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@echo ' # make C=1 CHECK=smatch'
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.PHONY: help
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# Automatic dependency generation
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#
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# Create ".o.d" dependency files with the -MM compile option for all ".c" and
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# ".cpp" files in the directory of the Makefile that includes common.mak:
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#
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# $ gcc -MM vmcp.c
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# vmcp.o: vmcp.c vmcp.h ../include/zt_common.h
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#
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# Use -MM instead of -M to *not* mention system header files. We expect
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# "make clean all" in case of system header updates.
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# We consider header files in three possible directories
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sources_h = \
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$(wildcard *.h) \
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$(wildcard ../include/*.h) \
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$(wildcard $(rootdir)/include/lib/*.h)
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# Rules to create ".o.d" files out of ".c" or ".cpp" files:
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.%.o.d: %.c $(sources_h)
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$(CC_SILENT) -MM $(ALL_CPPFLAGS) $(ALL_CFLAGS) $< > $@
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.%.o.d: %.cpp $(sources_h)
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$(CXX_SILENT) -MM $(ALL_CPPFLAGS) $(ALL_CXXFLAGS) $< > $@
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# The sources_c/cpp variable contains a list of all ".c" or ".cpp" files in
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# in the current directory.
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sources_c = $(wildcard *.c)
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sources_cpp = $(wildcard *.cpp)
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# The dependencies_c/cpp variable contains a list of all ".o.d" files,
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# one for each ".c" or ".cpp" file.
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dependencies_c = $(sources_c:%.c=.%.o.d)
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dependencies_cpp = $(sources_cpp:%.cpp=.%.o.d)
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# Include all ".o.d" dependency files for all make targets except for "clean"
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ifneq ($(MAKECMDGOALS),clean)
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-include $(dependencies_c)
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-include $(dependencies_cpp)
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endif
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# Rules for internal libraries needed to ensure that these files are build
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# with their own build flags even if they are build from external directories.
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#
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# Because of the PHONY directory dependency all tools that use libraries
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# check the library directory via "make -C" when the tools Makefile is
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# processed.
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$(rootdir)/libutil/libutil.a: $(rootdir)/libutil
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$(MAKE) -C $(rootdir)/libutil/ libutil.a
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.PHONY: $(rootdir)/libutil
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$(rootdir)/libccw/libccw.a: $(rootdir)/libccw
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$(MAKE) -C $(rootdir)/libccw/ libccw.a
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.PHONY: $(rootdir)/libccw
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$(rootdir)/libvtoc/libvtoc.a: $(rootdir)/libvtoc
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$(MAKE) -C $(rootdir)/libvtoc/ libvtoc.a
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.PHONY: $(rootdir)/libvtoc
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$(rootdir)/libdasd/libdasd.a: $(rootdir)/libdasd
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$(MAKE) -C $(rootdir)/libdasd/ libdasd.a
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.PHONY: $(rootdir)/libdasd
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$(rootdir)/libzds/libzds.a: $(rootdir)/libzds
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$(MAKE) -C $(rootdir)/libzds/ libzds.a
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.PHONY: $(rootdir)/libzds
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$(rootdir)/libvmcp/libvmcp.a: $(rootdir)/libvmcp
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$(MAKE) -C $(rootdir)/libvmcp/ libvmcp.a
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.PHONY: $(rootdir)/libvmcp
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$(rootdir)/libcpumf/libcpumf.a: $(rootdir)/libcpumf
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$(MAKE) -C $(rootdir)/libcpumf/ libcpumf.a
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.PHONY: $(rootdir)/libcpumf
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$(rootdir)/libekmfweb/libekmfweb.so: $(rootdir)/libekmfweb
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$(MAKE) -C $(rootdir)/libekmfweb/ libekmfweb.so
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.PHONY: $(rootdir)/libekmfweb
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$(rootdir)/libseckey/libseckey.a: $(rootdir)/libseckey
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$(MAKE) -C $(rootdir)/libseckey/ libseckey.a
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.PHONY: $(rootdir)/libseckey
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$(rootdir)/libkmipclient/libkmipclient.so: $(rootdir)/libkmipclient
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$(MAKE) -C $(rootdir)/libkmipclient/ libkmipclient.so
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.PHONY: $(rootdir)/libkmipclient
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$(rootdir)/libap/libap.a: $(rootdir)/libap
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$(MAKE) -C $(rootdir)/libap/ libap.a
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.PHONY: $(rootdir)/libap
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$(rootdir)/libpv/libpv.a: $(rootdir)/libpv
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$(MAKE) -C $(rootdir)/libpv libpv.a
|
|
.PHONY: $(rootdir)/libpv
|
|
|
|
$(rootdir)/zipl/boot/.loaders:
|
|
$(MAKE) -C $(rootdir)/zipl/boot/ .loaders
|
|
|
|
install_dirs:
|
|
for dir in $(INSTDIRS); do \
|
|
test -d $(DESTDIR)$$dir || $(INSTALL) -g $(GROUP) -o $(OWNER) -d $(DESTDIR)$$dir; \
|
|
done
|
|
for i in 1 2 3 4 5 6 7 8; do \
|
|
test -d $(DESTDIR)$(MANDIR)/man$$i || $(INSTALL) -g $(GROUP) -o $(OWNER) \
|
|
-d $(DESTDIR)$(MANDIR)/man$$i; \
|
|
done
|
|
|
|
install_echo:
|
|
$(call echocmd," INSTALL ")
|
|
|
|
install: install_echo install_dirs
|
|
|
|
clean_echo:
|
|
$(call echocmd," CLEAN ")
|
|
clean_gcov:
|
|
rm -f -- *.gcda *.gcno *.gcov
|
|
clean_dep:
|
|
rm -f -- .*.o.d
|
|
|
|
clean: clean_echo clean_gcov clean_dep
|
|
endif
|