116 lines
3.3 KiB
Makefile
116 lines
3.3 KiB
Makefile
#
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# Derived from FreeBSD src/sys/conf/kern.pre.mk
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#
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include ${TOPDIR}/mk/compiler.mk
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MACHINE_CPUARCH:= $(shell uname -m)
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# Convert Mac OS X name to FreeBSD one.
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ifeq (${MACHINE_CPUARCH},x86_64)
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MACHINE_CPUARCH= amd64
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endif
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AWK?= awk
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ifdef DEBUG
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_MINUS_O= -O0
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CTFFLAGS+= -g3
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else
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ifeq (${MACHINE_CPUARCH},powerpc)
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_MINUS_O= -O # gcc miscompiles some code at -O2
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else
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_MINUS_O= -O2
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endif
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ifeq (${MACHINE_CPUARCH},amd64)
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ifneq (${COMPILER_TYPE},clang)
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COPTFLAGS?=-O2 -fno-strict-aliasing -frename-registers -pipe -Wno-maybe-uninitialized #-finline-functions
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else
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COPTFLAGS?=-O2 -pipe
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endif
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else
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COPTFLAGS?=${_MINUS_O} -pipe
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endif
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ifneq ($(filter -O2 -O3 -Os,${COPTFLAGS}),)
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ifeq ($(filter -fno-strict-aliasing,${COPTFLAGS}),)
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COPTFLAGS+= -fno-strict-aliasing
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endif
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endif
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endif
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ifndef NO_CPU_COPTFLAGS
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COPTFLAGS+= ${_CPUCFLAGS}
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endif
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C_DIALECT= -std=c99
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NOSTDINC= -nostdinc
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INCLUDES= -undef -imacros ${IMACROS_FILE} ${NOSTDINC} ${INCLMAGIC} -I. -I$S
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CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
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KERNEL_CFLAGS= -D__FreeBSD__ -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -fno-builtin
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ifneq (${COMPILER_TYPE},clang)
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CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
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ifneq (${MACHINE_CPUARCH},mips)
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CFLAGS+= --param inline-unit-growth=100
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CFLAGS+= --param large-function-growth=1000
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else
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# XXX Actually a gross hack just for Octeon because of the Simple Executive.
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CFLAGS+= --param inline-unit-growth=10000
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CFLAGS+= --param large-function-growth=100000
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CFLAGS+= --param max-inline-insns-single=10000
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endif
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endif
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WERROR?= -Werror -Wno-unused-variable
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# XXX LOCORE means "don't declare C stuff" not "for locore.s".
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ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${KERNEL_CFLAGS}
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ifeq (${COMPILER_TYPE},clang)
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CLANG_NO_IAS= -no-integrated-as
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endif
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DEFINED_PROF= ${PROF}
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# Put configuration-specific C flags last (except for ${PROF}) so that they
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# can override the others.
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CFLAGS+= ${CONF_CFLAGS}
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# Optional linting. This can be overridden in /etc/make.conf.
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LINTFLAGS= ${LINTOBJKERNFLAGS}
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NORMAL_C= ${CC} -c ${CFLAGS} ${KERNEL_CFLAGS} ${INCLUDES} ${WERROR} ${PROF} $<
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NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${INCLUDES} ${WERROR} $<
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PROFILE_C= ${CC} -c ${CFLAGS} ${KERNEL_CFLAGS} ${INCLUDES} ${WERROR} $<
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NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${KERNEL_CFLAGS} ${INCLUDES} ${PROF} $<
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NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk $< -c ; \
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${CC} -c ${CFLAGS} ${KERNEL_CFLAGS} ${WERROR} ${PROF} $*.c
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GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
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SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
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SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
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SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
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SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
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SYSTEM_OBJS+= hack.So
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SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} ${LDFLAGS} --no-warn-mismatch \
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-warn-common -export-dynamic -dynamic-linker /red/herring \
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-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
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SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
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${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
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SYSTEM_DEP+= ${LDSCRIPT}
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IMACROS_FILE=filtered_predefined_macros.h
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IMACROS_FILTER+= __STDC__ __STDC_HOSTED__ __STDC_VERSION__
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IMACROS_FILTER+= __APPLE__ __MACH__
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IMACROS_FILTER+= __CYGWIN__ __CYGWIN32__
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IMACROS_FILTER+= __FreeBSD__
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IMACROS_FILTER+= __linux __linux__ __gnu__linux__ linux
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IMACROS_FILTER+= _WIN32 _WIN64
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SPACE= $(eval) $(eval)
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IMACROS_FILTER_EXPR:= $(subst ${SPACE},|,$(strip ${IMACROS_FILTER}))
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