bsd.sys.mk revision 246880
176861Skris# $FreeBSD: head/share/mk/bsd.sys.mk 246880 2013-02-16 20:17:31Z dim $ 276861Skris# 376861Skris# This file contains common settings used for building FreeBSD 476861Skris# sources. 576861Skris 676861Skris# Enable various levels of compiler warning checks. These may be 776861Skris# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS. 876861Skris 9233052Sdim# for GCC: http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Warning-Options.html 1096316Sobrien 11240468Sbrooks.include <bsd.compiler.mk> 12240468Sbrooks 13189801Srdivacky# the default is gnu99 for now 14233052SdimCSTD?= gnu99 15189801Srdivacky 16220863Sdim.if ${CSTD} == "k&r" 17233052SdimCFLAGS+= -traditional 18220863Sdim.elif ${CSTD} == "c89" || ${CSTD} == "c90" 19233052SdimCFLAGS+= -std=iso9899:1990 20220863Sdim.elif ${CSTD} == "c94" || ${CSTD} == "c95" 21233052SdimCFLAGS+= -std=iso9899:199409 22220863Sdim.elif ${CSTD} == "c99" 23233052SdimCFLAGS+= -std=iso9899:1999 24233052Sdim.else # CSTD 25233052SdimCFLAGS+= -std=${CSTD} 26233052Sdim.endif # CSTD 27220863Sdim.if !defined(NO_WARNS) 28161214Sdes# -pedantic is problematic because it also imposes namespace restrictions 29233052Sdim#CFLAGS+= -pedantic 30233052Sdim.if defined(WARNS) 31233052Sdim.if ${WARNS} >= 1 32233052SdimCWARNFLAGS+= -Wsystem-headers 33240468Sbrooks.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \ 34240468Sbrooks || !defined(NO_WERROR.clang)) 35233052SdimCWARNFLAGS+= -Werror 36233052Sdim.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang) 37233052Sdim.endif # WARNS >= 1 38233052Sdim.if ${WARNS} >= 2 39233052SdimCWARNFLAGS+= -Wall -Wno-format-y2k 40233052Sdim.endif # WARNS >= 2 41233052Sdim.if ${WARNS} >= 3 42233052SdimCWARNFLAGS+= -W -Wno-unused-parameter -Wstrict-prototypes\ 43233052Sdim -Wmissing-prototypes -Wpointer-arith 44233052Sdim.endif # WARNS >= 3 45233052Sdim.if ${WARNS} >= 4 46233052SdimCWARNFLAGS+= -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow\ 47233052Sdim -Wunused-parameter 48240468Sbrooks.if !defined(NO_WCAST_ALIGN) && (${COMPILER_TYPE} != "clang" \ 49240468Sbrooks || !defined(NO_WCAST_ALIGN.clang)) 50233052SdimCWARNFLAGS+= -Wcast-align 51233052Sdim.endif # !NO_WCAST_ALIGN && (!CLANG || !NO_WCAST_ALIGN.clang) 52233052Sdim.endif # WARNS >= 4 5394332Sobrien# BDECFLAGS 54233052Sdim.if ${WARNS} >= 6 55233052SdimCWARNFLAGS+= -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls\ 56233052Sdim -Wold-style-definition 57233052Sdim.endif # WARNS >= 6 58233052Sdim.if ${WARNS} >= 2 && ${WARNS} <= 4 5988936Sdwmalone# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 6088936Sdwmalone# XXX always get it right. 61233052SdimCWARNFLAGS+= -Wno-uninitialized 62233052Sdim.endif # WARNS >=2 && WARNS <= 4 63233052SdimCWARNFLAGS+= -Wno-pointer-sign 64228546Sdim# Clang has more warnings enabled by default, and when using -Wall, so if WARNS 65228546Sdim# is set to low values, these have to be disabled explicitly. 66240468Sbrooks.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) 67234353Sdim.if ${WARNS} <= 6 68234353SdimCWARNFLAGS+= -Wno-empty-body -Wno-string-plus-int 69234353Sdim.endif # WARNS <= 6 70233052Sdim.if ${WARNS} <= 3 71233052SdimCWARNFLAGS+= -Wno-tautological-compare -Wno-unused-value\ 72233052Sdim -Wno-parentheses-equality -Wno-unused-function -Wno-conversion 73233052Sdim.endif # WARNS <= 3 74233052Sdim.if ${WARNS} <= 2 75246880SdimCWARNFLAGS+= -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 76233052Sdim.endif # WARNS <= 2 77233052Sdim.if ${WARNS} <= 1 78233052SdimCWARNFLAGS+= -Wno-parentheses 79233052Sdim.endif # WARNS <= 1 80233052Sdim.if defined(NO_WARRAY_BOUNDS) 81233052SdimCWARNFLAGS+= -Wno-array-bounds 82233052Sdim.endif # NO_WARRAY_BOUNDS 83233052Sdim.endif # CLANG 84233052Sdim.endif # WARNS 8576861Skris 86233052Sdim.if defined(FORMAT_AUDIT) 87233052SdimWFORMAT= 1 88233052Sdim.endif # FORMAT_AUDIT 89233052Sdim.if defined(WFORMAT) 90233052Sdim.if ${WFORMAT} > 0 91233052Sdim#CWARNFLAGS+= -Wformat-nonliteral -Wformat-security -Wno-format-extra-args 92233052SdimCWARNFLAGS+= -Wformat=2 -Wno-format-extra-args 93240468Sbrooks.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) 94234353Sdim.if ${WARNS} <= 3 95234353SdimCWARNFLAGS+= -Wno-format-nonliteral 96234353Sdim.endif # WARNS <= 3 97234353Sdim.endif # CLANG 98240468Sbrooks.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \ 99240468Sbrooks || !defined(NO_WERROR.clang)) 100233052SdimCWARNFLAGS+= -Werror 101233052Sdim.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang) 102233052Sdim.endif # WFORMAT > 0 103233052Sdim.endif # WFORMAT 104240468Sbrooks.if defined(NO_WFORMAT) || (${COMPILER_TYPE} == "clang" && defined(NO_WFORMAT.clang)) 105233052SdimCWARNFLAGS+= -Wno-format 106233052Sdim.endif # NO_WFORMAT || (CLANG && NO_WFORMAT.clang) 107233052Sdim.endif # !NO_WARNS 10876861Skris 109163971Sjb.if defined(IGNORE_PRAGMA) 110233052SdimCWARNFLAGS+= -Wno-unknown-pragmas 111233052Sdim.endif # IGNORE_PRAGMA 112163971Sjb 113240468Sbrooks.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) 114233052SdimCLANG_NO_IAS= -no-integrated-as 115234353SdimCLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\ 116233052Sdim -mllvm -enable-load-pre=false -mllvm -simplifycfg-dup-ret 117234353SdimCFLAGS+= -Qunused-arguments 118233052Sdim.endif # CLANG 119232263Sdim 120220863Sdim.if ${MK_SSP} != "no" && ${MACHINE_CPUARCH} != "ia64" && \ 121220863Sdim ${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips" 122180012Sru# Don't use -Wstack-protector as it breaks world with -Werror. 123233052SdimSSP_CFLAGS?= -fstack-protector 124233052SdimCFLAGS+= ${SSP_CFLAGS} 125233052Sdim.endif # SSP && !IA64 && !ARM && !MIPS 126180012Sru 12776861Skris# Allow user-specified additional warning flags 128233052SdimCFLAGS+= ${CWARNFLAGS} 129241298Smarcel 130241298Smarcel 131241298Smarcel# Tell bmake not to mistake standard targets for things to be searched for 132241298Smarcel# or expect to ever be up-to-date. 133241298SmarcelPHONY_NOTMAIN = afterdepend afterinstall all beforedepend beforeinstall \ 134241298Smarcel beforelinking build build-tools buildfiles buildincludes \ 135241298Smarcel checkdpadd clean cleandepend cleandir cleanobj configure \ 136241298Smarcel depend dependall distclean distribute exe extract fetch \ 137241298Smarcel html includes install installfiles installincludes lint \ 138241298Smarcel obj objlink objs objwarn patch realall realdepend \ 139241298Smarcel realinstall regress subdir-all subdir-depend subdir-install \ 140241298Smarcel tags whereobj 141241298Smarcel 142241298Smarcel.PHONY: ${PHONY_NOTMAIN} 143241298Smarcel.NOTMAIN: ${PHONY_NOTMAIN} 144