7e4113e2e1
directives, since on sparc64 we must still GNU as, which does not support those directives. Note there are several programs and libraries in our tree, which are always compiled with -g, even if DEBUG_FLAGS is not set by the user!
160 lines
5.2 KiB
Makefile
160 lines
5.2 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 NO_WARNS.
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# for GCC: http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Warning-Options.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} == "k&r"
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CFLAGS+= -traditional
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.elif ${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 !defined(NO_WARNS)
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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 ${WARNS} >= 1
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CWARNFLAGS+= -Wsystem-headers
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.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \
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|| !defined(NO_WERROR.clang))
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CWARNFLAGS+= -Werror
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.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang)
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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 ${WARNS} >= 4
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CWARNFLAGS+= -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow\
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-Wunused-parameter
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.if !defined(NO_WCAST_ALIGN) && (${COMPILER_TYPE} != "clang" \
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|| !defined(NO_WCAST_ALIGN.clang))
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CWARNFLAGS+= -Wcast-align
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.endif # !NO_WCAST_ALIGN && (!CLANG || !NO_WCAST_ALIGN.clang)
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.endif # WARNS >= 4
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# BDECFLAGS
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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 ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) && \
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!defined(NO_WMISSING_VARIABLE_DECLARATIONS)
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CWARNFLAGS+= -Wmissing-variable-declarations
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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 ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
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.if ${WARNS} <= 6
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CWARNFLAGS+= -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable
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.endif # WARNS <= 6
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.if ${WARNS} <= 3
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CWARNFLAGS+= -Wno-tautological-compare -Wno-unused-value\
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-Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion
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.endif # WARNS <= 3
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.if ${WARNS} <= 2
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CWARNFLAGS+= -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+= -Wno-parentheses
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.endif # WARNS <= 1
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.if defined(NO_WARRAY_BOUNDS)
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CWARNFLAGS+= -Wno-array-bounds
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.endif # NO_WARRAY_BOUNDS
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.endif # CLANG
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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 ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
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.if ${WARNS} <= 3
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CWARNFLAGS+= -Wno-format-nonliteral
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.endif # WARNS <= 3
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.endif # CLANG
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.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \
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|| !defined(NO_WERROR.clang))
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CWARNFLAGS+= -Werror
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.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang)
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.endif # WFORMAT > 0
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.endif # WFORMAT
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.if defined(NO_WFORMAT) || (${COMPILER_TYPE} == "clang" && defined(NO_WFORMAT.clang))
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CWARNFLAGS+= -Wno-format
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.endif # NO_WFORMAT || (CLANG && NO_WFORMAT.clang)
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.endif # !NO_WARNS
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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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.if !defined(EARLY_BUILD)
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.if ${COMPILER_TYPE} == "clang"
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CLANG_NO_IAS= -no-integrated-as
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CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\
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-mllvm -enable-load-pre=false -mllvm -simplifycfg-dup-ret
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CFLAGS+= -Qunused-arguments
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.if ${MACHINE_CPUARCH} == "sparc64"
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# Don't emit .cfi directives, since we must use GNU as on sparc64, for now.
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CFLAGS+= -fno-dwarf2-cfi-asm
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.endif # SPARC64
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CFLAGS+= ${CFLAGS.clang}
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CXXFLAGS+= ${CXXFLAGS.clang}
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.else # !CLANG
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GCC_MS_EXTENSIONS= -fms-extensions
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CFLAGS+= ${CFLAGS.gcc}
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CXXFLAGS+= ${CXXFLAGS.gcc}
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.endif # CLANG
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.endif # !EARLY_BUILD
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.if ${MK_SSP} != "no" && ${MACHINE_CPUARCH} != "ia64" && \
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${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips"
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# Don't use -Wstack-protector as it breaks world with -Werror.
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SSP_CFLAGS?= -fstack-protector
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CFLAGS+= ${SSP_CFLAGS}
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.endif # SSP && !IA64 && !ARM && !MIPS
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# Allow user-specified additional warning flags
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CFLAGS+= ${CWARNFLAGS}
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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 = afterdepend afterinstall all beforedepend beforeinstall \
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beforelinking build build-tools buildfiles buildincludes \
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checkdpadd clean cleandepend cleandir cleanobj configure \
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depend dependall distclean distribute exe extract fetch \
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html includes install installfiles installincludes lint \
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obj objlink objs objwarn patch realall realdepend \
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realinstall regress subdir-all subdir-depend subdir-install \
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tags whereobj
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.PHONY: ${PHONY_NOTMAIN}
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.NOTMAIN: ${PHONY_NOTMAIN}
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