20f8af224b
This will add an option to compile and link nethack executable with ubsan and catch undefined behaviour errors on runtime.
215 lines
6.2 KiB
Plaintext
Executable File
215 lines
6.2 KiB
Plaintext
Executable File
#------------------------------------------------------------------------------
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# NetHack 3.7 compiler.370 $NHDT-Date: 1668359835 2022/11/13 17:17:15 $ $NHDT-Branch: NetHack-3.7 $
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# compiler flags: CCFLAGS is used to construct a value for CFLAGS with
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# various -I, -D, and -W settings appended below;
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# these are the settings of most interest for an end-user build
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# (clang doesn't support '-Og', gcc needs 4.x or later)
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CCFLAGS = -g
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#CCFLAGS = -g -Og
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#CCFLAGS = -O2
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# Note: this is not the usual 'CFLAGS' which is used in default
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# rules for compiling C code; specifying a value for that on the
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# 'make' command line should be avoided.
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#If you want to force use of one particular set of compilers, do it
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#here, ahead of the detection, so that the detection will match your
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#choice and set variables CCISCLANG, GCCGTEQ, CLANGPPGTEQ9 etc.
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#accordingly.
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#
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#CC= gcc
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#CXX= g++ -std-gnu++11
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#
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#CC= clang
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#CXX=clang++ -std=gnu++11
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#
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# If these are set on entry, preparation for C++ compiles is affected.
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# CPLUSPLUS_NEEDED = 1 C++ compile bits included
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# CPLUSPLUS_NEED17 = 1 C++ -std=c++17 (at least)
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# CPLUSPLUS_NEED_DEPSUPPRESS = 1 C++ -Wno-deprecated-copy,
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# -Wno-deprecated-declarations
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ifeq "$(WANT_ASAN)" "1"
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USE_ASAN=1
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endif
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ifeq "$(WANT_UBSAN)" "1"
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USE_UBSAN=1
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endif
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# If you want to override the compiler detection just carried out
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# uncomment one of the following pairs. Note, however, that
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# doing this after the detection above will likely result in
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# mismatched variable values for CCISCLANG, GCCGTEQ, CLANGPPGTEQ9 etc.
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#
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#CC= gcc
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#CXX= g++ -std-gnu++11
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#
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#CC= clang
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#CXX=clang++ -std=gnu++11
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CFLAGS=$(CCFLAGS) -I../include -DNOTPARMDECL
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CFLAGS+=-Wall -Wextra \
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-Wreturn-type -Wunused -Wformat -Wswitch -Wshadow -Wwrite-strings
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CFLAGS+=-pedantic
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CFLAGS+=-Wmissing-declarations
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#CFLAGS+=-Wformat=2
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# these are left out of the C++ flags
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CFLAGS+=-Wformat-nonliteral
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CFLAGS+=-Wunreachable-code
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#
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# the following are not allowed in C++
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CFLAGS+=-Wimplicit
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CFLAGS+=-Wimplicit-function-declaration
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CFLAGS+=-Wimplicit-int
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CFLAGS+=-Wmissing-prototypes
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CFLAGS+=-Wold-style-definition
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CFLAGS+=-Wstrict-prototypes
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CFLAGS+=-Wnonnull
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#detection of clang vs gcc
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CCISCLANG := $(shell echo `$(CC) --version` | grep clang)
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ifeq "$(CCISCLANG)" ""
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# gcc-specific follows
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CXX=g++ -std=gnu++11
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# get the version of gcc
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GCCGTEQ9 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 9)
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GCCGTEQ11 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 11)
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GCCGTEQ12 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 12)
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ifeq "$(GCCGTEQ9)" "1"
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# flags present in gcc version greater than or equal to 9 can go here
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CFLAGS+=-Wformat-overflow
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CFLAGS+=-Wmissing-parameter-type
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endif # GCC greater than or equal to 9
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#ifeq "$(GCCGTEQ11)" "1"
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#endif
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#ifeq "$(GCCGTEQ12)" "1"
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#endif
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# end of gcc-specific
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else # gcc or clang?
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CXX=clang++ -std=gnu++11
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# clang-specific follows
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CLANGGTEQ14 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 14)
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ifeq "$(CLANGGTEQ14)" "1"
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ifneq "$(VIEWDEPRECATIONS)" "1"
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CFLAGS+=-Wno-deprecated-declarations
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endif # not VIEWDEPRECATIONS
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else
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# older versions complain about things newer ones don't without this
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CFLAGS+=-Wno-missing-field-initializers
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endif
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# none
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endif # clang-specific ends here
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ifdef MAKEFILE_SRC
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ifdef CPLUSPLUS_NEEDED
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CCXXFLAGS = -g -I../include -DNOTPARMDECL
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CCXXFLAGS+=-Wall -Wextra -Wno-missing-field-initializers \
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-Wreturn-type -Wunused -Wformat -Wswitch -Wshadow -Wwrite-strings
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CCXXFLAGS+=-pedantic
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CCXXFLAGS+=-Wmissing-declarations
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#detection of clang++ vs g++
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CXXISCLANG := $(shell echo `$(CXX) --version` | grep clang)
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ifeq "$(CXXISCLANG)" ""
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# g++-specific
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CCXX=g++ -std=gnu++11
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# get the version of g++
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GPPGTEQ9 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 9)
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GPPGTEQ11 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 11)
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GPPGTEQ12 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 12)
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ifeq "$(GPPGTEQ9)" "1"
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CCXXFLAGS+=-Wformat-overflow
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ifdef CPLUSPLUS_NEED_DEPSUPPRESS
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ifneq "$(VIEWDEPRECATIONS)" "1"
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CCXXFLAGS+=-Wno-deprecated-copy
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CCXXFLAGS+=-Wno-deprecated-declarations
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endif # not VIEWDEPRECATIONS
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endif # CPLUSPLUS_NEED_DEPSUPPRESS
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endif # g++ version greater than or equal to 9
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ifeq "$(GPPGTEQ11)" "1"
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# the g++ linker will have trouble linking if the following isn't included
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# when compiling the C files.
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CFLAGS+=-fPIC
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endif # g++ version greater than or equal to 11
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ifdef CPLUSPLUS_NEED17
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ifeq "$(GPPGTEQ12)" "1"
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CCXX=g++ -std=c++20
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else # g++ version greater than or equal to 12? (no follows)
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CCXX=g++ -std=c++17
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endif # g++ version greater than or equal to 12
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endif # CPLUSPLUS_NEED17
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else # g++ or clang++ ?
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# clang++-specific
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CCXX=clang++ -std=c++11
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# get the version of clang++
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CLANGPPGTEQ9 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 9)
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CLANGPPGTEQ11 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 11)
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CLANGPPGTEQ14 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 14)
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CLANGPPGTEQ17 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 17)
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ifeq "$(CLANGPPGTEQ9)" "1"
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#CCXXFLAGS+=-Wformat-overflow
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endif
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ifeq "$(CLANGPPGTEQ14)" "1"
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CPLUSPLUS_NEED_DEPSUPPRESS=1
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endif
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ifdef CPLUSPLUS_NEED_DEPSUPPRESS
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ifneq "$(VIEWDEPRECATIONS)" "1"
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CCXXFLAGS+=-Wno-deprecated
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CCXXFLAGS+=-Wno-deprecated-declarations
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endif # not VIEWDEPRECATIONS
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endif # CPLUSPLUS_NEED_DEPSUPPRESS
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# The clang++ linker seems to have trouble linking if the following isn't
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# included when compiling the C files by clang..
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CFLAGS+=-fPIC
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ifdef CPLUSPLUS_NEED17
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ifeq "$(CLANGPPGTEQ14)" "1"
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CCXX=clang++ -std=c++17
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endif # clang++ greater than or equal to 14
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ifeq "$(CLANGPPGTEQ17)" "1"
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CCXX=clang++ -std=c++20
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endif # clang++ greater than or equal to 17
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endif # CPLUSPLUS_NEED17
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endif # end of clang++-specific section
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CXX=$(CCXX)
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endif # CPLUSPLUS_NEEDED
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endif # MAKEFILE_SRC
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ifeq "$(c89)" "1"
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HAVECSTD=c89
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endif
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ifeq "$(C89)" "1"
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HAVECSTD=c89
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endif
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ifeq "$(c99)" "1"
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HAVECSTD=c99
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endif
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ifeq "$(C99)" "1"
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HAVECSTD=c99
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endif
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ifeq "$(c11)" "1"
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HAVECSTD=c11
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endif
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ifeq "$(C11)" "1"
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HAVECSTD=c11
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endif
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ifeq "$(c23)" "1"
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HAVECSTD=c2x
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endif
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ifeq "$(C23)" "1"
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HAVECSTD=c2x
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endif
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ifneq "$(HAVECSTD)" ""
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CSTD = -std=$(HAVECSTD)
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endif
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#end of compiler.370
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#------------------------------------------------------------------------------
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