13b7412dad
While there, add a NO_WTHREAD_SAFETY flag that can be used to disable this specific warning flag. Disable it for auditdistd. We can easily patch up auditdistd to have the right annotations to build, but as auditdistd is intended to be portable across other operating systems, it's not worth the effort. Approved by: brueffer@
161 lines
5.4 KiB
Makefile
161 lines
5.4 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 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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# -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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# 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 !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} > 30300
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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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.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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.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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.if defined(IGNORE_PRAGMA)
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CWARNFLAGS+= -Wno-unknown-pragmas
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.endif # IGNORE_PRAGMA
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.if ${COMPILER_TYPE} == "clang"
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# Would love to do this unconditionally, but can't due to its use in
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# kernel build coupled with CFLAGS.${TARGET} feature
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CLANG_NO_IAS= -no-integrated-as
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.endif
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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.clang+= -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.clang+= -fno-dwarf2-cfi-asm
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.endif # SPARC64
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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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# 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 && !ARM && !MIPS
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# Allow user-specified additional warning flags, plus compiler specific flag overrides.
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# Unless we've overriden this...
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.if ${MK_WARNS} != "no"
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CFLAGS+= ${CWARNFLAGS} ${CWARNFLAGS.${COMPILER_TYPE}}
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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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# 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 \
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html includes install installfiles installincludes lint \
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obj objlink objs objwarn 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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