424 lines
13 KiB
Makefile
424 lines
13 KiB
Makefile
# $FreeBSD$
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#
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# This file contains common settings used for building FreeBSD
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# sources.
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# Enable various levels of compiler warning checks. These may be
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# overridden (e.g. if using a non-gcc compiler) by defining MK_WARNS=no.
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# for 4.2.1 GCC: http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Warning-Options.html
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# for current GCC: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
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# for clang: https://clang.llvm.org/docs/DiagnosticsReference.html
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.include <bsd.compiler.mk>
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# the default is gnu99 for now
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CSTD?= gnu99
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.if ${CSTD} == "c89" || ${CSTD} == "c90"
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CFLAGS+= -std=iso9899:1990
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.elif ${CSTD} == "c94" || ${CSTD} == "c95"
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CFLAGS+= -std=iso9899:199409
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.elif ${CSTD} == "c99"
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CFLAGS+= -std=iso9899:1999
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.else # CSTD
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CFLAGS+= -std=${CSTD}
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.endif # CSTD
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.if !empty(CXXSTD)
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CXXFLAGS+= -std=${CXXSTD}
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.endif
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#
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# Turn off -Werror for gcc 4.2.1. The compiler is on the glide path out of the
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# system, and any warnings specific to it are no longer relevant as there are
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# too many false positives.
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#
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.if ${COMPILER_VERSION} < 50000
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NO_WERROR.gcc= yes
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.endif
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# -pedantic is problematic because it also imposes namespace restrictions
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#CFLAGS+= -pedantic
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.if defined(WARNS)
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.if ${WARNS} >= 1
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CWARNFLAGS+= -Wsystem-headers
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.if !defined(NO_WERROR) && !defined(NO_WERROR.${COMPILER_TYPE})
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CWARNFLAGS+= -Werror
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.endif # !NO_WERROR && !NO_WERROR.${COMPILER_TYPE}
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.endif # WARNS >= 1
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.if ${WARNS} >= 2
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CWARNFLAGS+= -Wall -Wno-format-y2k
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.endif # WARNS >= 2
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.if ${WARNS} >= 3
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CWARNFLAGS+= -W -Wno-unused-parameter -Wstrict-prototypes\
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-Wmissing-prototypes -Wpointer-arith
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.endif # WARNS >= 3
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.if ${WARNS} >= 4
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CWARNFLAGS+= -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow\
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-Wunused-parameter
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.if !defined(NO_WCAST_ALIGN) && !defined(NO_WCAST_ALIGN.${COMPILER_TYPE})
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CWARNFLAGS+= -Wcast-align
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.endif # !NO_WCAST_ALIGN !NO_WCAST_ALIGN.${COMPILER_TYPE}
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.endif # WARNS >= 4
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.if ${WARNS} >= 6
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CWARNFLAGS+= -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls\
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-Wold-style-definition
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.if !defined(NO_WMISSING_VARIABLE_DECLARATIONS)
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CWARNFLAGS.clang+= -Wmissing-variable-declarations
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.endif
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.if !defined(NO_WTHREAD_SAFETY)
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CWARNFLAGS.clang+= -Wthread-safety
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.endif
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.endif # WARNS >= 6
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.if ${WARNS} >= 2 && ${WARNS} <= 4
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# XXX Delete -Wuninitialized by default for now -- the compiler doesn't
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# XXX always get it right.
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CWARNFLAGS+= -Wno-uninitialized
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.endif # WARNS >=2 && WARNS <= 4
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CWARNFLAGS+= -Wno-pointer-sign
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# Clang has more warnings enabled by default, and when using -Wall, so if WARNS
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# is set to low values, these have to be disabled explicitly.
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.if ${WARNS} <= 6
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CWARNFLAGS.clang+= -Wno-empty-body -Wno-string-plus-int
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.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30400
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CWARNFLAGS.clang+= -Wno-unused-const-variable
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.endif
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.endif # WARNS <= 6
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.if ${WARNS} <= 3
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CWARNFLAGS.clang+= -Wno-tautological-compare -Wno-unused-value\
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-Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion
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.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
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CWARNFLAGS.clang+= -Wno-unused-local-typedef
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.endif
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.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 40000
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CWARNFLAGS.clang+= -Wno-address-of-packed-member
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.endif
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.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 90100
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CWARNFLAGS.gcc+= -Wno-address-of-packed-member
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.endif
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.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 70000 && \
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${MACHINE_CPUARCH} == "arm" && !${MACHINE_ARCH:Marmv[67]*}
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CWARNFLAGS.clang+= -Wno-atomic-alignment
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.endif
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.endif # WARNS <= 3
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.if ${WARNS} <= 2
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CWARNFLAGS.clang+= -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter
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.endif # WARNS <= 2
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.if ${WARNS} <= 1
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CWARNFLAGS.clang+= -Wno-parentheses
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.endif # WARNS <= 1
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.if defined(NO_WARRAY_BOUNDS)
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CWARNFLAGS.clang+= -Wno-array-bounds
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.endif # NO_WARRAY_BOUNDS
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.if defined(NO_WMISLEADING_INDENTATION) && \
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((${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 100000) || \
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(${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60100))
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CWARNFLAGS+= -Wno-misleading-indentation
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.endif # NO_WMISLEADING_INDENTATION
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.endif # WARNS
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.if defined(FORMAT_AUDIT)
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WFORMAT= 1
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.endif # FORMAT_AUDIT
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.if defined(WFORMAT)
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.if ${WFORMAT} > 0
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#CWARNFLAGS+= -Wformat-nonliteral -Wformat-security -Wno-format-extra-args
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CWARNFLAGS+= -Wformat=2 -Wno-format-extra-args
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.if ${WARNS} <= 3
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CWARNFLAGS.clang+= -Wno-format-nonliteral
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.endif # WARNS <= 3
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.if !defined(NO_WERROR) && !defined(NO_WERROR.${COMPILER_TYPE})
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CWARNFLAGS+= -Werror
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.endif # !NO_WERROR && !NO_WERROR.${COMPILER_TYPE}
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.endif # WFORMAT > 0
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.endif # WFORMAT
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.if defined(NO_WFORMAT) || defined(NO_WFORMAT.${COMPILER_TYPE})
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CWARNFLAGS+= -Wno-format
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.endif # NO_WFORMAT || NO_WFORMAT.${COMPILER_TYPE}
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# GCC 5.2.0
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.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 50200
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CWARNFLAGS+= -Wno-error=address \
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-Wno-error=array-bounds \
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-Wno-error=attributes \
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-Wno-error=bool-compare \
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-Wno-error=cast-align \
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-Wno-error=clobbered \
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-Wno-error=deprecated-declarations \
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-Wno-error=enum-compare \
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-Wno-error=extra \
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-Wno-error=inline \
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-Wno-error=logical-not-parentheses \
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-Wno-error=strict-aliasing \
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-Wno-error=uninitialized \
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-Wno-error=unused-but-set-variable \
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-Wno-error=unused-function \
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-Wno-error=unused-value
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.endif
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# GCC 6.1.0
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.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60100
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CWARNFLAGS+= -Wno-error=nonnull-compare \
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-Wno-error=shift-negative-value \
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-Wno-error=tautological-compare \
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-Wno-error=unused-const-variable
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.endif
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# GCC 7.1.0
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.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 70100
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CWARNFLAGS+= -Wno-error=bool-operation \
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-Wno-error=deprecated \
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-Wno-error=expansion-to-defined \
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-Wno-error=format-overflow \
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-Wno-error=format-truncation \
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-Wno-error=implicit-fallthrough \
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-Wno-error=int-in-bool-context \
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-Wno-error=memset-elt-size \
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-Wno-error=noexcept-type \
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-Wno-error=nonnull \
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-Wno-error=pointer-compare \
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-Wno-error=stringop-overflow
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.endif
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# GCC 8.1.0
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.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 80100
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CWARNFLAGS+= -Wno-error=aggressive-loop-optimizations \
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-Wno-error=cast-function-type \
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-Wno-error=catch-value \
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-Wno-error=multistatement-macros \
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-Wno-error=restrict \
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-Wno-error=sizeof-pointer-memaccess \
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-Wno-error=stringop-truncation
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.endif
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# How to handle FreeBSD custom printf format specifiers.
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.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
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FORMAT_EXTENSIONS= -D__printf__=__freebsd_kprintf__
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.else
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FORMAT_EXTENSIONS= -fformat-extensions
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.endif
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.if defined(IGNORE_PRAGMA)
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CWARNFLAGS+= -Wno-unknown-pragmas
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.endif # IGNORE_PRAGMA
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# This warning is utter nonsense
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CFLAGS+= -Wno-format-zero-length
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.if ${COMPILER_TYPE} == "clang"
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# The headers provided by clang are incompatible with the FreeBSD headers.
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# If the version of clang is not one that has been patched to omit the
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# incompatible headers, we need to compile with -nobuiltininc and add the
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# resource dir to the end of the search paths. This ensures that headers such as
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# immintrin.h are still found but stddef.h, etc. are picked up from FreeBSD.
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#
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# XXX: This is a hack to support complete external installs of clang while
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# we work to synchronize our decleration guards with those in the clang tree.
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.if ${MK_CLANG_BOOTSTRAP:Uno} == "no" && \
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${COMPILER_RESOURCE_DIR} != "unknown" && !defined(BOOTSTRAPPING)
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CFLAGS+=-nobuiltininc -idirafter ${COMPILER_RESOURCE_DIR}/include
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.endif
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.endif
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CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\
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-mllvm -simplifycfg-dup-ret
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.if ${COMPILER_VERSION} >= 30500 && ${COMPILER_VERSION} < 30700
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CLANG_OPT_SMALL+= -mllvm -enable-gvn=false
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.else
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CLANG_OPT_SMALL+= -mllvm -enable-load-pre=false
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.endif
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CFLAGS.clang+= -Qunused-arguments
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# The libc++ headers use c++11 extensions. These are normally silenced because
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# they are treated as system headers, but we explicitly disable that warning
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# suppression when building the base system to catch bugs in our headers.
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# Eventually we'll want to start building the base system C++ code as C++11,
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# but not yet.
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CXXFLAGS.clang+= -Wno-c++11-extensions
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.if ${MK_SSP} != "no" && \
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${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips"
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.if (${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30500) || \
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(${COMPILER_TYPE} == "gcc" && \
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(${COMPILER_VERSION} == 40201 || ${COMPILER_VERSION} >= 40900))
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# Don't use -Wstack-protector as it breaks world with -Werror.
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SSP_CFLAGS?= -fstack-protector-strong
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.else
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SSP_CFLAGS?= -fstack-protector
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.endif
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CFLAGS+= ${SSP_CFLAGS}
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.endif # SSP && !ARM && !MIPS
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# Additional flags passed in CFLAGS and CXXFLAGS when MK_DEBUG_FILES is
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# enabled.
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DEBUG_FILES_CFLAGS?= -g
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# Allow user-specified additional warning flags, plus compiler and file
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# specific flag overrides, unless we've overridden this...
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.if ${MK_WARNS} != "no"
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CFLAGS+= ${CWARNFLAGS:M*} ${CWARNFLAGS.${COMPILER_TYPE}}
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CFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}}
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CXXFLAGS+= ${CXXWARNFLAGS:M*} ${CXXWARNFLAGS.${COMPILER_TYPE}}
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CXXFLAGS+= ${CXXWARNFLAGS.${.IMPSRC:T}}
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.endif
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CFLAGS+= ${CFLAGS.${COMPILER_TYPE}}
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CXXFLAGS+= ${CXXFLAGS.${COMPILER_TYPE}}
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AFLAGS+= ${AFLAGS.${.IMPSRC:T}}
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AFLAGS+= ${AFLAGS.${.TARGET:T}}
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ACFLAGS+= ${ACFLAGS.${.IMPSRC:T}}
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ACFLAGS+= ${ACFLAGS.${.TARGET:T}}
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CFLAGS+= ${CFLAGS.${.IMPSRC:T}}
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CXXFLAGS+= ${CXXFLAGS.${.IMPSRC:T}}
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LDFLAGS+= ${LDFLAGS.${LINKER_TYPE}}
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# Only allow .TARGET when not using PROGS as it has the same syntax
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# per PROG which is ambiguous with this syntax. This is only needed
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# for PROG_VARS vars.
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.if !defined(_RECURSING_PROGS)
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.if ${MK_WARNS} != "no"
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CFLAGS+= ${CWARNFLAGS.${.TARGET:T}}
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.endif
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CFLAGS+= ${CFLAGS.${.TARGET:T}}
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CXXFLAGS+= ${CXXFLAGS.${.TARGET:T}}
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LDFLAGS+= ${LDFLAGS.${.TARGET:T}}
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LDADD+= ${LDADD.${.TARGET:T}}
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LIBADD+= ${LIBADD.${.TARGET:T}}
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.endif
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.if defined(SRCTOP)
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# Prevent rebuilding during install to support read-only objdirs.
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.if ${.TARGETS:M*install*} == ${.TARGETS} && empty(.MAKE.MODE:Mmeta)
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CFLAGS+= ERROR-tried-to-rebuild-during-make-install
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.endif
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.endif
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# Tell bmake not to mistake standard targets for things to be searched for
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# or expect to ever be up-to-date.
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PHONY_NOTMAIN = analyze afterdepend afterinstall all beforedepend beforeinstall \
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beforelinking build build-tools buildconfig buildfiles \
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buildincludes check checkdpadd clean cleandepend cleandir \
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cleanobj configure depend distclean distribute exe \
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files html includes install installconfig installdirs \
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installfiles installincludes lint obj objlink objs objwarn \
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realinstall tags whereobj
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# we don't want ${PROG} to be PHONY
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.PHONY: ${PHONY_NOTMAIN:N${PROG:U}}
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.NOTMAIN: ${PHONY_NOTMAIN:Nall}
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.if ${MK_STAGING} != "no"
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.if defined(_SKIP_BUILD) || (!make(all) && !make(clean*) && !make(*clean))
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_SKIP_STAGING?= yes
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.endif
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.if ${_SKIP_STAGING:Uno} == "yes"
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staging stage_libs stage_files stage_as stage_links stage_symlinks:
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.else
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# allow targets like beforeinstall to be leveraged
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DESTDIR= ${STAGE_OBJTOP}
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.export DESTDIR
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.if target(beforeinstall)
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.if !empty(_LIBS) || (${MK_STAGING_PROG} != "no" && !defined(INTERNALPROG))
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staging: beforeinstall
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.endif
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.endif
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# normally only libs and includes are staged
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.if ${MK_STAGING_PROG} != "no" && !defined(INTERNALPROG)
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STAGE_DIR.prog= ${STAGE_OBJTOP}${BINDIR}
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.if !empty(PROG)
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.if defined(PROGNAME)
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STAGE_AS_SETS+= prog
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STAGE_AS_${PROG}= ${PROGNAME}
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stage_as.prog: ${PROG}
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.else
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STAGE_SETS+= prog
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stage_files.prog: ${PROG}
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STAGE_TARGETS+= stage_files
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.endif
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.endif
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.endif
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.if !empty(_LIBS) && !defined(INTERNALLIB)
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.if defined(SHLIBDIR) && ${SHLIBDIR} != ${LIBDIR} && ${_LIBS:Uno:M*.so.*} != ""
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STAGE_SETS+= shlib
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STAGE_DIR.shlib= ${STAGE_OBJTOP}${SHLIBDIR}
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STAGE_FILES.shlib+= ${_LIBS:M*.so.*}
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stage_files.shlib: ${_LIBS:M*.so.*}
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.endif
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.if defined(SHLIB_LINK) && commands(${SHLIB_LINK:R}.ld)
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STAGE_AS_SETS+= ldscript
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STAGE_AS.ldscript+= ${SHLIB_LINK:R}.ld
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stage_as.ldscript: ${SHLIB_LINK:R}.ld
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STAGE_DIR.ldscript = ${STAGE_LIBDIR}
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STAGE_AS_${SHLIB_LINK:R}.ld:= ${SHLIB_LINK}
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NO_SHLIB_LINKS=
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.endif
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.if target(stage_files.shlib)
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stage_libs: ${_LIBS}
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.if defined(DEBUG_FLAGS) && target(${SHLIB_NAME}.symbols)
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stage_files.shlib: ${SHLIB_NAME}.symbols
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.endif
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.else
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stage_libs: ${_LIBS}
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.endif
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.if defined(SHLIB_NAME) && defined(DEBUG_FLAGS) && target(${SHLIB_NAME}.symbols)
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stage_libs: ${SHLIB_NAME}.symbols
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.endif
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.endif
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.if !empty(INCS) || !empty(INCSGROUPS) && target(buildincludes)
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.if !defined(NO_BEFOREBUILD_INCLUDES)
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stage_includes: buildincludes
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beforebuild: stage_includes
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.endif
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.endif
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.for t in stage_libs stage_files stage_as
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.if target($t)
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STAGE_TARGETS+= $t
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.endif
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.endfor
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.if !empty(STAGE_AS_SETS)
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STAGE_TARGETS+= stage_as
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.endif
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.if !empty(STAGE_TARGETS) || (${MK_STAGING_PROG} != "no" && !defined(INTERNALPROG))
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.if !empty(LINKS)
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STAGE_TARGETS+= stage_links
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.if ${MAKE_VERSION} < 20131001
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stage_links.links: ${_LIBS} ${PROG}
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.endif
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STAGE_SETS+= links
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STAGE_LINKS.links= ${LINKS}
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.endif
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.if !empty(SYMLINKS)
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STAGE_TARGETS+= stage_symlinks
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STAGE_SETS+= links
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STAGE_SYMLINKS.links= ${SYMLINKS}
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.endif
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.endif
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.include <meta.stage.mk>
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.endif
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.endif
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.if defined(META_TARGETS)
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.for _tgt in ${META_TARGETS}
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.if target(${_tgt})
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${_tgt}: ${META_DEPS}
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.endif
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.endfor
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.endif
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