fb422e6d31
Merge the projects/clang-sparc64 branch back to head. This brings in several updates from the llvm and clang trunks to make the sparc64 backend fully functional. Apart from one patch to sys/sparc64/include/pcpu.h which is still under discussion, this makes it possible to let clang fully build world and kernel for sparc64. Any assistance with testing this on actual sparc64 hardware is greatly appreciated, as there will unavoidably be bugs left. Many thanks go to Roman Divacky for his upstream work on getting the sparc64 backend into shape. MFC r262985: Repair a few minor mismerges from r262261 in the clang-sparc64 project branch. This is also to minimize differences with upstream.
170 lines
5.6 KiB
Makefile
170 lines
5.6 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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# 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+= -Wno-c++11-extensions
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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 \
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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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.if defined(PORTNAME)
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PHONY_NOTMAIN+= fetch patch
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.endif
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.PHONY: ${PHONY_NOTMAIN}
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.NOTMAIN: ${PHONY_NOTMAIN}
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