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freebsd-nq/share/mk/bsd.sys.mk

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Bring in the WARNS directive from NetBSD, localized in a new bsd.sys.mk to avoid polluting sys.mk. This directive controls the addition of compiler warning flags to CFLAGS in a relatively compiler-neutral manner. The idea is that WARNS can be set in Makefile.inc or in individual Makefiles as they become clean, to prevent the introduction of new warnings in the code. -Werror is added by default
2001-05-19 23:18:21 +00:00
# $FreeBSD$
#
# This file contains common settings used for building FreeBSD
# sources.
# Enable various levels of compiler warning checks. These may be
# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS.
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
# for GCC: http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Warning-Options.html
Gcc 3.1 has different -Wx flags.
2002-05-10 01:58:16 +00:00
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.include <bsd.compiler.mk>
Switch over to gnu99 compilation on default for userland. Tested by: make universe Tested by: ports exp build (done by pav) Reviewed by: ru Reviewed by: silence on arch Approved by: ed (mentor)
2009-03-14 17:55:16 +00:00
# the default is gnu99 for now
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CSTD?= gnu99
Switch over to gnu99 compilation on default for userland. Tested by: make universe Tested by: ports exp build (done by pav) Reviewed by: ru Reviewed by: silence on arch Approved by: ed (mentor)
2009-03-14 17:55:16 +00:00
Remove support for the Intel C Compiler from the build infrastructure. This support has not worked for several years, and is not likely to work again, unless Intel decides to release a native FreeBSD version of their compiler. ;)
2011-04-19 18:09:21 +00:00
.if ${CSTD} == "k&r"
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CFLAGS+= -traditional
Remove support for the Intel C Compiler from the build infrastructure. This support has not worked for several years, and is not likely to work again, unless Intel decides to release a native FreeBSD version of their compiler. ;)
2011-04-19 18:09:21 +00:00
.elif ${CSTD} == "c89" || ${CSTD} == "c90"
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CFLAGS+= -std=iso9899:1990
Remove support for the Intel C Compiler from the build infrastructure. This support has not worked for several years, and is not likely to work again, unless Intel decides to release a native FreeBSD version of their compiler. ;)
2011-04-19 18:09:21 +00:00
.elif ${CSTD} == "c94" || ${CSTD} == "c95"
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CFLAGS+= -std=iso9899:199409
Remove support for the Intel C Compiler from the build infrastructure. This support has not worked for several years, and is not likely to work again, unless Intel decides to release a native FreeBSD version of their compiler. ;)
2011-04-19 18:09:21 +00:00
.elif ${CSTD} == "c99"
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CFLAGS+= -std=iso9899:1999
.else # CSTD
CFLAGS+= -std=${CSTD}
.endif # CSTD
Remove support for the Intel C Compiler from the build infrastructure. This support has not worked for several years, and is not likely to work again, unless Intel decides to release a native FreeBSD version of their compiler. ;)
2011-04-19 18:09:21 +00:00
.if !defined(NO_WARNS)
Reintroduce CSTD, which allows a Makefile to specify the precise dialect of C in which the program or library is written. Note that this is *not* intended to be used across the whole tree. It is intended to be used for individual libraries or programs which use specific language features which the compiler must know about in order to produce correct warnings at high WARNS levels. MFC after: 1 month
2006-08-11 17:28:59 +00:00
# -pedantic is problematic because it also imposes namespace restrictions
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
#CFLAGS+= -pedantic
.if defined(WARNS)
.if ${WARNS} >= 1
CWARNFLAGS+= -Wsystem-headers
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \
|| !defined(NO_WERROR.clang))
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CWARNFLAGS+= -Werror
.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang)
.endif # WARNS >= 1
.if ${WARNS} >= 2
CWARNFLAGS+= -Wall -Wno-format-y2k
.endif # WARNS >= 2
.if ${WARNS} >= 3
CWARNFLAGS+= -W -Wno-unused-parameter -Wstrict-prototypes\
-Wmissing-prototypes -Wpointer-arith
.endif # WARNS >= 3
.if ${WARNS} >= 4
CWARNFLAGS+= -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow\
-Wunused-parameter
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.if !defined(NO_WCAST_ALIGN) && (${COMPILER_TYPE} != "clang" \
|| !defined(NO_WCAST_ALIGN.clang))
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CWARNFLAGS+= -Wcast-align
.endif # !NO_WCAST_ALIGN && (!CLANG || !NO_WCAST_ALIGN.clang)
.endif # WARNS >= 4
Add WARNS levels 5 and 6: 5 gives us -Wuninitialized rather than -Wno-uninitialized 6 gives us full BDECFLAGS
2002-04-10 02:45:22 +00:00
# BDECFLAGS
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
.if ${WARNS} >= 6
CWARNFLAGS+= -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls\
-Wold-style-definition
.endif # WARNS >= 6
.if ${WARNS} >= 2 && ${WARNS} <= 4
Put -Wno-uninitialized at the end of the warns flags as it may be enabeled by several flags (in this case -W and -Wall). Reviewed by: bde
2002-01-05 20:17:50 +00:00
# XXX Delete -Wuninitialized by default for now -- the compiler doesn't
# XXX always get it right.
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CWARNFLAGS+= -Wno-uninitialized
.endif # WARNS >=2 && WARNS <= 4
CWARNFLAGS+= -Wno-pointer-sign
Clang has more warnings enabled by default, and when using -Wall, so if WARNS is set to low values, some of them have to be disabled explicitly. MFC after: 1 week
2011-12-15 22:08:08 +00:00
# Clang has more warnings enabled by default, and when using -Wall, so if WARNS
# is set to low values, these have to be disabled explicitly.
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
Upgrade our copy of llvm/clang to trunk r154661, in preparation of the upcoming 3.1 release (expected in a few weeks). Preliminary release notes can be found at: <http://llvm.org/docs/ReleaseNotes.html> MFC after: 2 weeks
2012-04-16 21:23:25 +00:00
.if ${WARNS} <= 6
CWARNFLAGS+= -Wno-empty-body -Wno-string-plus-int
.endif # WARNS <= 6
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
.if ${WARNS} <= 3
CWARNFLAGS+= -Wno-tautological-compare -Wno-unused-value\
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion
.endif # WARNS <= 3
.if ${WARNS} <= 2
Since clang 3.2 now has an option to suppress warnings about implicitly promoted K&R parameters, remove the workarounds added for sendmail components in r228558. MFC after: 1 week
2013-02-16 20:17:31 +00:00
CWARNFLAGS+= -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
.endif # WARNS <= 2
.if ${WARNS} <= 1
CWARNFLAGS+= -Wno-parentheses
.endif # WARNS <= 1
.if defined(NO_WARRAY_BOUNDS)
CWARNFLAGS+= -Wno-array-bounds
.endif # NO_WARRAY_BOUNDS
.endif # CLANG
.endif # WARNS
Bring in the WARNS directive from NetBSD, localized in a new bsd.sys.mk to avoid polluting sys.mk. This directive controls the addition of compiler warning flags to CFLAGS in a relatively compiler-neutral manner. The idea is that WARNS can be set in Makefile.inc or in individual Makefiles as they become clean, to prevent the introduction of new warnings in the code. -Werror is added by default
2001-05-19 23:18:21 +00:00
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
.if defined(FORMAT_AUDIT)
WFORMAT= 1
.endif # FORMAT_AUDIT
.if defined(WFORMAT)
.if ${WFORMAT} > 0
#CWARNFLAGS+= -Wformat-nonliteral -Wformat-security -Wno-format-extra-args
CWARNFLAGS+= -Wformat=2 -Wno-format-extra-args
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
Upgrade our copy of llvm/clang to trunk r154661, in preparation of the upcoming 3.1 release (expected in a few weeks). Preliminary release notes can be found at: <http://llvm.org/docs/ReleaseNotes.html> MFC after: 2 weeks
2012-04-16 21:23:25 +00:00
.if ${WARNS} <= 3
CWARNFLAGS+= -Wno-format-nonliteral
.endif # WARNS <= 3
.endif # CLANG
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \
|| !defined(NO_WERROR.clang))
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CWARNFLAGS+= -Werror
.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang)
.endif # WFORMAT > 0
.endif # WFORMAT
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.if defined(NO_WFORMAT) || (${COMPILER_TYPE} == "clang" && defined(NO_WFORMAT.clang))
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CWARNFLAGS+= -Wno-format
.endif # NO_WFORMAT || (CLANG && NO_WFORMAT.clang)
.endif # !NO_WARNS
Bring in the WARNS directive from NetBSD, localized in a new bsd.sys.mk to avoid polluting sys.mk. This directive controls the addition of compiler warning flags to CFLAGS in a relatively compiler-neutral manner. The idea is that WARNS can be set in Makefile.inc or in individual Makefiles as they become clean, to prevent the introduction of new warnings in the code. -Werror is added by default
2001-05-19 23:18:21 +00:00
Allow a makefile to set IGNORE_PRAGMA so that OpenSolaris code can be built with other gcc warnings enabled. Every Solaris source file has a #pragma ident in it. We can just ignore those definitions.
2006-11-04 04:39:05 +00:00
.if defined(IGNORE_PRAGMA)
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CWARNFLAGS+= -Wno-unknown-pragmas
.endif # IGNORE_PRAGMA
Allow a makefile to set IGNORE_PRAGMA so that OpenSolaris code can be built with other gcc warnings enabled. Every Solaris source file has a #pragma ident in it. We can just ignore those definitions.
2006-11-04 04:39:05 +00:00
Introduce a new make variable COMPILER_TYPE that specifies what type of compiler is being used (currently clang or gcc). COMPILER_TYPE is set in the new bsd.compiler.mk file based on the value of the CC variable or, should it prove informative, by running ${CC} --version and examining the output. To avoid negative performance impacts in the default case and correct value for COMPILER_TYPE type is determined and passed in the environment of submake instances while building world. Replace adhoc attempts at determining the compiler type by examining CC or MK_CLANG_IS_CC with checks of COMPILER_TYPE. This eliminates bootstrapping complications when first setting WITH_CLANG_IS_CC. Sponsored by: DARPA, AFRL Reviewed by: Yamaya Takashi <yamayan@kbh.biglobe.ne.jp>, imp, linimon (with some modifications post review) MFC after: 2 weeks
2012-09-13 16:00:46 +00:00
.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CLANG_NO_IAS= -no-integrated-as
Upgrade our copy of llvm/clang to trunk r154661, in preparation of the upcoming 3.1 release (expected in a few weeks). Preliminary release notes can be found at: <http://llvm.org/docs/ReleaseNotes.html> MFC after: 2 weeks
2012-04-16 21:23:25 +00:00
CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
-mllvm -enable-load-pre=false -mllvm -simplifycfg-dup-ret
Upgrade our copy of llvm/clang to trunk r154661, in preparation of the upcoming 3.1 release (expected in a few weeks). Preliminary release notes can be found at: <http://llvm.org/docs/ReleaseNotes.html> MFC after: 2 weeks
2012-04-16 21:23:25 +00:00
CFLAGS+= -Qunused-arguments
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
.endif # CLANG
Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to get rid of testing explicitly for clang (using ${CC:T:Mclang}) in individual Makefiles. Instead, use the following extra macros, for use with clang: - NO_WERROR.clang (disables -Werror) - NO_WCAST_ALIGN.clang (disables -Wcast-align) - NO_WFORMAT.clang (disables -Wformat and friends) - CLANG_NO_IAS (disables integrated assembler) - CLANG_OPT_SMALL (adds flags for extra small size optimizations) As a side effect, this enables setting CC/CXX/CPP in src.conf instead of make.conf! For clang, use the following: CC=clang CXX=clang++ CPP=clang-cpp MFC after: 2 weeks
2012-02-28 18:30:18 +00:00
Remove support for the Intel C Compiler from the build infrastructure. This support has not worked for several years, and is not likely to work again, unless Intel decides to release a native FreeBSD version of their compiler. ;)
2011-04-19 18:09:21 +00:00
.if ${MK_SSP} != "no" && ${MACHINE_CPUARCH} != "ia64" && \
${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips"
Enable GCC stack protection (aka Propolice) for userland: - It is opt-out for now so as to give it maximum testing, but it may be turned opt-in for stable branches depending on the consensus. You can turn it off with WITHOUT_SSP. - WITHOUT_SSP was previously used to disable the build of GNU libssp. It is harmless to steal the knob as SSP symbols have been provided by libc for a long time, GNU libssp should not have been much used. - SSP is disabled in a few corners such as system bootstrap programs (sys/boot), process bootstrap code (rtld, csu) and SSP symbols themselves. - It should be safe to use -fstack-protector-all to build world, however libc will be automatically downgraded to -fstack-protector because it breaks rtld otherwise. - This option is unavailable on ia64. Enable GCC stack protection (aka Propolice) for kernel: - It is opt-out for now so as to give it maximum testing. - Do not compile your kernel with -fstack-protector-all, it won't work. Submitted by: Jeremie Le Hen <jeremie@le-hen.org>
2008-06-25 21:33:28 +00:00
# Don't use -Wstack-protector as it breaks world with -Werror.
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
SSP_CFLAGS?= -fstack-protector
CFLAGS+= ${SSP_CFLAGS}
.endif # SSP && !IA64 && !ARM && !MIPS
Enable GCC stack protection (aka Propolice) for userland: - It is opt-out for now so as to give it maximum testing, but it may be turned opt-in for stable branches depending on the consensus. You can turn it off with WITHOUT_SSP. - WITHOUT_SSP was previously used to disable the build of GNU libssp. It is harmless to steal the knob as SSP symbols have been provided by libc for a long time, GNU libssp should not have been much used. - SSP is disabled in a few corners such as system bootstrap programs (sys/boot), process bootstrap code (rtld, csu) and SSP symbols themselves. - It should be safe to use -fstack-protector-all to build world, however libc will be automatically downgraded to -fstack-protector because it breaks rtld otherwise. - This option is unavailable on ia64. Enable GCC stack protection (aka Propolice) for kernel: - It is opt-out for now so as to give it maximum testing. - Do not compile your kernel with -fstack-protector-all, it won't work. Submitted by: Jeremie Le Hen <jeremie@le-hen.org>
2008-06-25 21:33:28 +00:00
Bring in the WARNS directive from NetBSD, localized in a new bsd.sys.mk to avoid polluting sys.mk. This directive controls the addition of compiler warning flags to CFLAGS in a relatively compiler-neutral manner. The idea is that WARNS can be set in Makefile.inc or in individual Makefiles as they become clean, to prevent the introduction of new warnings in the code. -Werror is added by default
2001-05-19 23:18:21 +00:00
# Allow user-specified additional warning flags
Change the style of share/mk/bsd.sys.mk to that of the other bsd.*.mk files, and style.Makefile(5), where applicable. While here, update the link to the gcc warning documentation. No functional change. MFC after: 1 week
2012-03-16 23:19:45 +00:00
CFLAGS+= ${CWARNFLAGS}
Add support for bmake. This includes: 1. Don't do upgrade_checks when using bmake. As long as we have WITH_BMAKE, there's a bootstrap complication in ths respect. Avoid it. Make the necessary changes to have upgrade_checks work wth bmake anyway. 2. Remove the use of -E. It's not needed in our build because we use ?= for the respective variables, which means that we'll take the environment value (if any) anyway. 3. Properly declare phony targets as phony as bmake is a lot smarter (and thus agressive) about build avoidance. 4. Make sure CLEANFILES is complete and use it on .NOPATH. bmake is a lot smarter about build avoidance and should not find files we generate in the source tree. We should not have files in the repository we want to generate, but this is an easier way to cross this hurdle. 5. Have behavior under bmake the same as it is under make with respect to halting when sub-commands fail. Add "set -e" to compound commands so that bmake is informed when sub-commands fail. 6. Make sure crunchgen uses the same make as the rest of the build. This is important when the make utility isn't called make (but bmake for example). 7. While here, add support for using MAKEOBJDIR to set the object tree location. It's the second alternative bmake looks for when determining the actual object directory (= .OBJDIR). Submitted by: Simon Gerraty <sjg@juniper.net> Submitted by: John Van Horne <jvanhorne@juniper.net>
2012-10-06 20:01:05 +00:00
# Tell bmake not to mistake standard targets for things to be searched for
# or expect to ever be up-to-date.
PHONY_NOTMAIN = afterdepend afterinstall all beforedepend beforeinstall \
beforelinking build build-tools buildfiles buildincludes \
checkdpadd clean cleandepend cleandir cleanobj configure \
depend dependall distclean distribute exe extract fetch \
html includes install installfiles installincludes lint \
obj objlink objs objwarn patch realall realdepend \
realinstall regress subdir-all subdir-depend subdir-install \
tags whereobj
.PHONY: ${PHONY_NOTMAIN}
.NOTMAIN: ${PHONY_NOTMAIN}
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