mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-04-26 00:38:45 +00:00
2fc507c98f
* modelines: tw -> sw shiftwidth, not textwidth. * space-surround modelines * fix irregular modelines * Fix modeline in titlegen.c
527 lines
11 KiB
Makefile
527 lines
11 KiB
Makefile
#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
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#── vi: set et ft=make ts=8 sw=8 fenc=utf-8 :vi ──────────────────────┘
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# Default Mode
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#
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# - `make`
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# - Optimized
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# - Backtraces
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# - Syscall tracing
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# - Function tracing
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#
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ifeq ($(MODE),)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CCFLAGS += -O2 $(BACKTRACES)
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CONFIG_CPPFLAGS += -DSYSDEBUG
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TARGET_ARCH ?= -msse3
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endif
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ifeq ($(MODE), x86_64)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CCFLAGS += -O2 $(BACKTRACES)
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CONFIG_CPPFLAGS += -DSYSDEBUG
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endif
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ifeq ($(MODE), aarch64)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CCFLAGS += -O2 $(BACKTRACES)
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CONFIG_CPPFLAGS += -DSYSDEBUG
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endif
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# Zero Optimization Mode
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#
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# - Goes 2x slower
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# - Supports --strace
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# - Unsupports --ftrace
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# - Better GDB debugging
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#
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ifeq ($(MODE), zero)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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OVERRIDE_CFLAGS += -O0
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OVERRIDE_CXXFLAGS += -O0
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CONFIG_CPPFLAGS += -DSYSDEBUG
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endif
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ifeq ($(MODE), aarch64-zero)
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CONFIG_OFLAGS ?= -g
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OVERRIDE_CFLAGS += -O0 -fdce
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OVERRIDE_CXXFLAGS += -O0 -fdce
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CONFIG_CPPFLAGS += -DSYSDEBUG
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endif
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# Fast Build Mode
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#
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# - `make MODE=fastbuild`
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# - No debugging
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# - Syscall tracing
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# - Function tracing
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# - Some optimizations
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# - Limited Backtraces
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#
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ifeq ($(MODE), fastbuild)
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ENABLE_FTRACE = 1
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CONFIG_CCFLAGS += $(BACKTRACES) -O
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CONFIG_CPPFLAGS += -DSYSDEBUG -DDWARFLESS
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CONFIG_LDFLAGS += -S
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TARGET_ARCH ?= -msse3
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endif
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# Optimized Mode
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#
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# - `make MODE=opt`
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# - Backtraces
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# - More optimized
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# - Syscall tracing
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# - Function tracing
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# - Reasonably small
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# - No memory corruption detection
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# - assert() / CHECK_xx() may leak code into binary for debuggability
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# - GCC 8+ hoists check fails into .text.cold, thus minimizing impact
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#
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ifeq ($(MODE), opt)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CPPFLAGS += -DNDEBUG -DSYSDEBUG
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CONFIG_CCFLAGS += $(BACKTRACES) -O3 -fmerge-all-constants
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TARGET_ARCH ?= -march=native
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endif
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# Optimized Linux Mode
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# The Fastest Mode of All
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#
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# - `make MODE=optlinux`
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# - Turns on red zone
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# - Turns off backtraces
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# - Turns off function tracing
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# - Turns off support for older cpu models
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# - Turns off support for other operating systems
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#
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ifeq ($(MODE), optlinux)
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CONFIG_OFLAGS ?= -g
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CONFIG_CPPFLAGS += -DNDEBUG -DSYSDEBUG -DSUPPORT_VECTOR=1
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CONFIG_CCFLAGS += -O3 -fmerge-all-constants
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CONFIG_COPTS += -mred-zone
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TARGET_ARCH ?= -march=native
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endif
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# Release Mode
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#
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# Follows traditional closed source release binary norms.
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#
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# - `make MODE=rel`
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# - More optimized
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# - Reasonably small
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# - Numeric backtraces
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# - No DWARF data bloat
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# - Toilsome debuggability
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# - assert() statements removed
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# - DCHECK_xx() statements removed
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# - No memory corruption detection
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# - CHECK_xx() won't leak strings into binary
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#
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ifeq ($(MODE), rel)
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CONFIG_CPPFLAGS += -DNDEBUG -DDWARFLESS
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CONFIG_CCFLAGS += $(BACKTRACES) -O2
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TARGET_ARCH ?= -msse3
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PYFLAGS += -O1
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endif
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# Asan Mode
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#
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# Safer binaries good for backend production serving.
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#
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# - `make MODE=asan`
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# - Memory safety
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# - Production worthy
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# - Backtraces
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# - Debuggability
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# - Larger binaries
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#
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ifeq ($(MODE), asan)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CPPFLAGS += -D__SANITIZE_ADDRESS__
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CONFIG_CCFLAGS += $(BACKTRACES) -O2 -DSYSDEBUG
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CONFIG_COPTS += -fsanitize=address
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TARGET_ARCH ?= -msse3
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QUOTA ?= -C64 -L300
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endif
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# Debug Mode
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#
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# - `make MODE=dbg`
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# - Backtraces
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# - Enables asan
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# - Enables ubsan
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# - Stack canaries
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# - No optimization
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# - Enormous binaries
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#
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ifeq ($(MODE), dbg)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CPPFLAGS += -DMODE_DBG -D__SANITIZE_ADDRESS__ -D__SANITIZE_UNDEFINED__
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CONFIG_CCFLAGS += $(BACKTRACES) -DSYSDEBUG -O0 -fno-inline
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CONFIG_COPTS += -fsanitize=address -fsanitize=undefined
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TARGET_ARCH ?= -msse3
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OVERRIDE_CCFLAGS += -fno-pie
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QUOTA ?= -C64 -L300
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endif
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ifeq ($(MODE), aarch64-dbg)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CPPFLAGS += -DMODE_DBG -D__SANITIZE_UNDEFINED__
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CONFIG_CCFLAGS += $(BACKTRACES) -DSYSDEBUG -O0 -fno-inline -fdce
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CONFIG_COPTS += -fsanitize=undefined
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QUOTA ?= -C64 -L300
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endif
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# System Five Mode
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#
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# - `make MODE=sysv`
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# - Optimized
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# - Backtraces
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# - Debuggable
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# - Syscall tracing
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# - Function tracing
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# - No Windows bloat!
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#
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ifeq ($(MODE), sysv)
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ENABLE_FTRACE = 1
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CONFIG_OFLAGS ?= -g
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CONFIG_CCFLAGS += $(BACKTRACES) -O2
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CONFIG_CPPFLAGS += -DSYSDEBUG -DSUPPORT_VECTOR=121
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TARGET_ARCH ?= -msse3
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endif
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# Tiny Mode
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#
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# - `make MODE=tiny`
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# - No checks
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# - No asserts
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# - No canaries
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# - No paranoia
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# - No avx hooks
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# - No backtraces
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# - No algorithmics
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# - YOLO
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#
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ifeq ($(MODE), tiny)
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CONFIG_CPPFLAGS += \
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-DTINY \
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-DNDEBUG \
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-DTRUSTWORTHY
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CONFIG_CCFLAGS += \
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-Os \
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-fno-align-functions \
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-fno-align-jumps \
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-fno-align-labels \
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-fno-align-loops \
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-fschedule-insns2 \
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-momit-leaf-frame-pointer \
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-foptimize-sibling-calls \
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-DDWARFLESS
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TARGET_ARCH ?= \
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-msse3
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PYFLAGS += \
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-O2 \
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-B
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endif
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ifeq ($(MODE), x86_64-tiny)
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CONFIG_CPPFLAGS += \
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-DTINY \
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-DNDEBUG \
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-DTRUSTWORTHY
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CONFIG_CCFLAGS += \
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-Os \
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-fno-align-functions \
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-fno-align-jumps \
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-fno-align-labels \
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-fno-align-loops \
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-fschedule-insns2 \
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-momit-leaf-frame-pointer \
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-foptimize-sibling-calls \
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-DDWARFLESS
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TARGET_ARCH ?= \
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-msse3
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PYFLAGS += \
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-O2 \
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-B
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endif
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ifeq ($(MODE), aarch64-tiny)
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# TODO(jart): -mcmodel=tiny
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CONFIG_CPPFLAGS += \
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-DTINY \
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-DNDEBUG \
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-DTRUSTWORTHY
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CONFIG_CCFLAGS += \
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-Os \
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-fno-align-functions \
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-fno-align-jumps \
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-fno-align-labels \
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-fno-align-loops \
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-fschedule-insns2 \
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-momit-leaf-frame-pointer \
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-foptimize-sibling-calls \
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-DDWARFLESS
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PYFLAGS += \
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-O2 \
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-B
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endif
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# Linux-Only Tiny Mode
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#
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# - `make MODE=tinylinux`
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# - No checks
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# - No asserts
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# - No canaries
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# - No paranoia
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# - No avx hooks
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# - No backtraces
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# - No portability
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# - No algorithmics
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# - YOLO
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#
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ifeq ($(MODE), tinylinux)
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CONFIG_CPPFLAGS += \
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-DTINY \
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-DNDEBUG \
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-DTRUSTWORTHY \
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-DSUPPORT_VECTOR=1 \
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-DDWARFLESS
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CONFIG_CCFLAGS += \
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-Os \
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-fno-align-functions \
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-fno-align-jumps \
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-fno-align-labels \
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-fno-align-loops
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TARGET_ARCH ?= \
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-msse3
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endif
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# Linux+BSD Tiny Mode
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#
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# - `make MODE=tinylinuxbsd`
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# - No apple
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# - No checks
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# - No asserts
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# - No canaries
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# - No paranoia
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# - No microsoft
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# - No avx hooks
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# - No backtraces
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# - No algorithmics
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# - YOLO
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#
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ifeq ($(MODE), tinylinuxbsd)
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CONFIG_CPPFLAGS += \
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-DTINY \
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-DNDEBUG \
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-DTRUSTWORTHY \
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-DSUPPORT_VECTOR=113 \
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-DDWARFLESS
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CONFIG_CCFLAGS += \
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-Os \
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-fno-align-functions \
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-fno-align-jumps \
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-fno-align-labels \
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-fno-align-loops
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TARGET_ARCH ?= \
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-msse3
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endif
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# Unix Tiny Mode
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#
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# - `make MODE=tinysysv`
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# - No checks
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# - No asserts
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# - No canaries
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# - No paranoia
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# - No microsoft
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# - No avx hooks
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# - No backtraces
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# - No algorithmics
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# - YOLO
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#
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ifeq ($(MODE), tinysysv)
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CONFIG_CPPFLAGS += \
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-DTINY \
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-DNDEBUG \
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-DTRUSTWORTHY \
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-DSUPPORT_VECTOR=121 \
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-DDWARFLESS
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CONFIG_CCFLAGS += \
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-Os \
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-fno-align-functions \
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-fno-align-jumps \
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-fno-align-labels \
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-fno-align-loops
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TARGET_ARCH ?= \
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-msse3
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endif
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# Tiny Metallic Unix Mode
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#
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# - `make MODE=tinynowin`
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# - No checks
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# - No asserts
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# - No canaries
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# - No paranoia
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# - No microsoft
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# - No avx hooks
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# - No backtraces
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# - No algorithmics
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# - YOLO
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#
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ifeq ($(MODE), tinynowin)
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CONFIG_CPPFLAGS += \
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-DTINY \
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-DNDEBUG \
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-DTRUSTWORTHY \
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-DSUPPORT_VECTOR=251 \
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-DDWARFLESS
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CONFIG_CCFLAGS += \
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-Os \
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-fno-align-functions \
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-fno-align-jumps \
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-fno-align-labels \
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-fno-align-loops
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TARGET_ARCH ?= \
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-msse3
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endif
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# no x87 instructions mode
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#
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# export MODE=nox87
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# make -j8 toolchain
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# cosmocc -o /tmp/hello.com hello.c
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#
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# lets you shave ~23kb off blink
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#
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# git clone https://github.com/jart/blink
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# cd blink
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# ./configure --disable-x87
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# make -j8
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# o//blink/blink /tmp/hello.com
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#
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ifeq ($(MODE), nox87)
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ENABLE_FTRACE = 1
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CONFIG_COPTS += -mlong-double-64
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CONFIG_CCFLAGS += $(BACKTRACES) -O2
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CONFIG_CPPFLAGS += -DSYSDEBUG -DNOX87
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TARGET_ARCH ?= -msse3
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endif
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# LLVM Mode
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#
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# We aim to support:
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#
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# make -j8 m=llvm o/llvm/libc
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#
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# The rest of the monorepo may not work with llvm.
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#
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ifeq ($(MODE), llvm)
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.STRICT = 0
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TARGET_ARCH ?= -msse3
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CONFIG_CCFLAGS += $(BACKTRACES) -DSYSDEBUG -O2
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AS = clang
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CC = clang
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CXX = clang++
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CXXFILT = llvm-c++filt
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LD = ld.lld
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NM = llvm-nm
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GCC = clang
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STRIP = llvm-strip
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OBJCOPY = llvm-objcopy
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OBJDUMP = llvm-objdump
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ADDR2LINE = llvm-addr2line
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endif
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# ANSI Mode
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#
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# These flags cause GCC to predefine __STRICT_ANSI__. Please be warned
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# that Cosmopolitan headers are written to comply with that request if
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# it's possible to do so. Consider the following example:
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#
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# make -j12 -O o//tool/viz/printvideo.i
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# clang-format-10 -i o//tool/viz/printvideo.i
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# less o//tool/viz/printvideo.i
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#
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# You'll notice functions like memcpy(), ioctl(), etc. get expanded into
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# wild-eyed gnu-style performance hacks. You can turn it off as follows:
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#
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# make -j12 -O MODE=ansi o/ansi/tool/viz/printvideo.i
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# clang-format-10 -i o/ansi/tool/viz/printvideo.i
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# less o/ansi/tool/viz/printvideo.i
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#
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# Here it becomes clear that ANSI mode can help you decouple your source
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# from Cosmopolitan, by turning it into plain ordinary textbook C code.
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#
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# Another potential use case is distributing code to folks using tools
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# such as MSVC or XCode. You can run your binary objects through a tool
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# like objconv to convert them to COFF or MachO. Then use ANSI mode to
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# rollup one header file that'll enable linkage with minimal issues.
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ifeq ($(MODE), ansi)
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CONFIG_CFLAGS += -std=c11
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#CONFIG_CPPFLAGS += -ansi
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CONFIG_CXXFLAGS += -std=c++11
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TARGET_ARCH ?= -msse3
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endif
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ifneq ($(ENABLE_FTRACE),)
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CONFIG_CPPFLAGS += -DFTRACE
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FTRACE_CCFLAGS = -fno-inline-functions-called-once
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OVERRIDE_CFLAGS += $(FTRACE_CCFLAGS)
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OVERRIDE_CXXFLAGS += $(FTRACE_CCFLAGS)
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# function prologue nops for --ftrace
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ifeq ($(ARCH), x86_64)
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# this flag causes gcc to generate functions like this
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#
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# nop nop nop nop nop nop nop nop nop
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# func:
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# nop nop
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# ...
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#
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# which tool/build/fixupobj.c improves at build time like this
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#
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# nop nop nop nop nop nop nop nop nop
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# func:
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# xchg %ax,%ax
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# ...
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#
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# which --ftrace morphs at runtime like this
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#
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# ud2 # 2 bytes
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# call ftrace_hook # 5 bytes
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# jmp +2 # 2 bytes
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# func:
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# jmp -7 # 2 bytes
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# ...
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#
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CONFIG_CCFLAGS += -fpatchable-function-entry=18,16
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endif
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ifeq ($(ARCH), aarch64)
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# this flag causes gcc to generate functions like this
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#
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# nop nop nop nop nop nop
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# func:
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# nop
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# ...
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#
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# which --ftrace morphs at runtime like this
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#
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# brk #31337
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# stp x29,x30,[sp,#-16]!
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# mov x29,sp
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# bl ftrace_hook
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# ldp x29,x30,[sp],#16
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# b +1
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# func:
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# b -5
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# ...
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#
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CONFIG_CCFLAGS += -fpatchable-function-entry=7,6
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endif
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endif
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