CHECKLEVEL1 = @if [ "$(LEVEL)" != 1 ]; then $(MAKE) help; false; fi
CHECKLEVEL2 = @if [ "$(LEVEL)" != 2 ]; then $(MAKE) help; false; fi
-# Choose the compiler you want to use
-CC?=gcc
-
-# athlon optimizations
-#CPUOPTIMIZATIONS?=-march=athlon
-# athlon xp optimizations
-#CPUOPTIMIZATIONS?=-march=athlon-xp
-# athlon 64 optimizations
-#CPUOPTIMIZATIONS?=-march=athlon64 -m32
-# Pentium 3 optimizations
-#CPUOPTIMIZATIONS?=-march=pentium3
-# Pentium 4 optimizations
-#CPUOPTIMIZATIONS?=-march=pentium4
-# 686 (Pentium Pro/II) optimizations
-#CPUOPTIMIZATIONS?=-march=i686
-# No specific CPU (386 compatible)
-CPUOPTIMIZATIONS?=
-# x86
-ifeq ($(DP_SSE),1)
- CPUOPTIMIZATIONS+=-mno-avx
-endif
-# bones_was_here: added -mno-avx because when compiling for (at least) haswell or skylake with gcc or clang, with both -O2 and -O3, AVX auto-vectorisation causes subtle bugs in Xonotic QC physics, and changes the hash generated by the CI pipeline. AVX2 seems to be OK.
-# Also moved -fno-math-errno -fno-trapping-math (etc) to OPTIM_RELEASE as they're not CPU-specific.
-# NOTE: *never* *ever* use the -ffast-math or -funsafe-math-optimizations flag
-# Also, since gcc 5, -ffinite-math-only makes NaN and zero compare equal inside engine code but not inside QC, which causes error spam for seemingly valid QC code like if (x != 0) return 1 / x;
-SDL_CONFIG?=sdl2-config
-SDLCONFIG_UNIXCFLAGS?=`$(SDL_CONFIG) --cflags`
-SDLCONFIG_UNIXCFLAGS_X11?=
-SDLCONFIG_UNIXLIBS?=`$(SDL_CONFIG) --libs`
-SDLCONFIG_UNIXLIBS_X11?=-lX11
-SDLCONFIG_UNIXSTATICLIBS?=`$(SDL_CONFIG) --static-libs`
-SDLCONFIG_UNIXSTATICLIBS_X11?=-lX11
-SDLCONFIG_MACOSXCFLAGS=$(SDLCONFIG_UNIXCFLAGS)
-SDLCONFIG_MACOSXLIBS=$(SDLCONFIG_UNIXLIBS)
-SDLCONFIG_MACOSXSTATICLIBS=$(SDLCONFIG_UNIXSTATICLIBS)
STRIP?=strip
# note that builddate.c is very intentionally not compiled to a .o before
# being linked, because it should be recompiled every time an executable is
# built to give the executable a proper date string
-OBJ_SV= builddate.c sys_unix.o vid_null.o thread_null.o $(OBJ_SND_NULL) $(OBJ_COMMON)
+OBJ_SV= builddate.c sys_null.o vid_null.o thread_null.o $(OBJ_SND_NULL) $(OBJ_COMMON)
OBJ_SDL= builddate.c sys_sdl.o vid_sdl.o thread_sdl.o $(OBJ_MENU) $(OBJ_SND_COMMON) $(OBJ_SND_XMP) snd_sdl.o $(OBJ_VIDEO_CAPTURE) $(OBJ_COMMON)
# Compilation
+# -D_POSIX_C_SOURCE=200809L doesn't enable all of POSIX 2008, wtf?
+# -D_DEFAULT_SOURCE does enables all of POSIX 2008 (without GNU extensions).
ifeq ($(PEDANTIC),1)
- CFLAGS_STANDARD=-std=c11 -pedantic -D_POSIX_C_SOURCE=200809L -DCONFIG_PEDANTIC
+ CFLAGS_STANDARD=-std=c17 -pedantic -D_DEFAULT_SOURCE -DCONFIG_PEDANTIC
else
CFLAGS_STANDARD=
endif
-CFLAGS_TCC=
+CFLAGS_WARNINGS=-Wall -Werror=vla -Werror=c++-compat -Wwrite-strings -Wshadow -Wold-style-definition -Wstrict-prototypes -Wsign-compare -Wdeclaration-after-statement -Wmissing-prototypes
+CFLAGS_TCC=
ifeq ($(CC), tcc)
CFLAGS_TCC=-DSDL_DISABLE_IMMINTRIN_H
+else
+ CFLAGS_MAKEDEP?=-MMD
endif
CFLAGS_COMMON=$(CFLAGS_STANDARD) $(CFLAGS_TCC) $(CFLAGS_MAKEDEP) $(CFLAGS_PRELOAD) $(CFLAGS_FS) $(CFLAGS_WARNINGS) $(CFLAGS_LIBZ) $(CFLAGS_LIBJPEG) $(CFLAGS_SND_XMP) $(CFLAGS_NET) $(CFLAGS_SDL) -D_FILE_OFFSET_BITS=64 -D__KERNEL_STRICT_NAMES -I../../../
CFLAGS_SSE2=
endif # ifeq ($(DP_SSE),1)
-OPTIM_DEBUG=$(CPUOPTIMIZATIONS)
+# No specific CPU
+CPUOPTIMIZATIONS?=
+# x86
+ifeq ($(DP_SSE),1)
+ CPUOPTIMIZATIONS+=-mno-avx
+endif
+# bones_was_here: added -mno-avx because when compiling for (at least) haswell or skylake with gcc or clang, with both -O2 and -O3, AVX auto-vectorisation causes subtle bugs in Xonotic QC physics, and changes the hash generated by the CI pipeline. AVX2 seems to be OK.
+
+# We can get good stack traces at -O1 with -fno-omit-frame-pointer (as recommended by ASan docs) for a hefty boost compared to unoptimised.
+OPTIM_DEBUG=-O1 -fno-omit-frame-pointer $(CPUOPTIMIZATIONS)
#OPTIM_RELEASE=-O2 -fno-strict-aliasing -ffast-math -funroll-loops $(CPUOPTIMIZATIONS)
#OPTIM_RELEASE=-O2 -fno-strict-aliasing -fno-math-errno -fno-trapping-math -fno-signaling-nans -fcx-limited-range -funroll-loops $(CPUOPTIMIZATIONS)
#OPTIM_RELEASE=-O2 -fno-strict-aliasing -funroll-loops $(CPUOPTIMIZATIONS)
#OPTIM_RELEASE=-O2 -fno-strict-aliasing $(CPUOPTIMIZATIONS)
#OPTIM_RELEASE=-O3 -fno-strict-aliasing $(CPUOPTIMIZATIONS)
#OPTIM_RELEASE=-O3 -fno-strict-aliasing -fno-math-errno -fno-trapping-math $(CPUOPTIMIZATIONS)
-OPTIM_RELEASE=-O3 -fno-math-errno -fno-trapping-math $(CPUOPTIMIZATIONS)
+# -Winline is here instead of in CFLAGS_WARNINGS because we need inlining disabled for good stack traces in debug builds,
+# also because UBSan and ASan cause this warning to be spammed.
+OPTIM_RELEASE=-O3 -fno-math-errno -fno-trapping-math $(CPUOPTIMIZATIONS) -Winline
# NOTE: *never* *ever* use the -ffast-math or -funsafe-math-optimizations flag
# Also, since gcc 5, -ffinite-math-only makes NaN and zero compare equal inside engine code but not inside QC, which causes error spam for seemingly valid QC code like if (x != 0) return 1 / x;
##### Linux specific variables #####
# Link
-LDFLAGS_LINUXSV=$(LDFLAGS_UNIXCOMMON) -lrt -ldl
-LDFLAGS_LINUXSDL=$(LDFLAGS_UNIXCOMMON) -lrt -ldl $(LDFLAGS_UNIXSDL)
+# -rdynamic allows glibc backtrace_symbols_fd() to convert addresses to function names
+# with a much smaller binary than with full debug symbols
+LDFLAGS_LINUXSV=$(LDFLAGS_UNIXCOMMON) -lrt -ldl -rdynamic
+LDFLAGS_LINUXSDL=$(LDFLAGS_UNIXCOMMON) -lrt -ldl -rdynamic $(LDFLAGS_UNIXSDL)
##### Mac OS X specific variables #####
# If requested, these targets must always run first:
.EXTRA_PREREQS := $(filter clean clean-profile, $(MAKECMDGOALS))
-.NOTPARALLEL: $(.EXTRA_PREREQS)
clean:
-$(CMD_RM) $(EXE_SV)
projects / xonotic / darkplaces.git / blobdiff