388 lines
11 KiB
Makefile
388 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 tw=8 fenc=utf-8 :vi───────────────────────┘
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#
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# SYNOPSIS
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#
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# Cosmopolitan Core Build Definitions
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#
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# DESCRIPTION
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#
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# Nearly all compiler flag tuning is done within this one file. Flags
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# may be customized with environment variables. We also use this file
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# to compute expensive values once per build.
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#
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# When tuning the variables below, please note they're interpreted in
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# the strictest sense. For example, we don't pass CFLAGS to gcc if we
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# know it's compiling a .S file. This allows our `make SILENT=0` logs
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# to be succinct and informative, at the cost of being less forgiving.
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#
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# Further note that link order is equally unforgiving in repositories
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# of this scale. We approach that by over-specifying dependencies, in
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# packages that're broken down usually on a per-directory basis. This
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# is aided by the checkdeps and functional programming tools which in
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# most cases should be able to deduce correct ordering automatically.
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#
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# Concerning our approach to flag tuning, most of it is non-essential
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# and largely serves to turn features off. Particularly features that
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# would otherwise lock us in to a particular platform or legal terms.
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# Other flags will usually be the ones that provide us marginal gains
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# in terms of performance and code size, but the world won't end when
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# they aren't used. Flags that play a critical role in source working
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# correctly will usually be specified on a object-by-object basis, in
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# their respective packages.
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#
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# VARIABLES
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#
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# CCFLAGS gcc frontend flags (.i, .c, .cc, .f, .S, .lds, etc.)
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# CPPFLAGS preprocessor flags (.h, .c, .cc, .S, .inc, .lds, etc.)
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# CFLAGS c flags (.c only)
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# CXXFLAGS c++ flags (.cc only)
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# COPTS c/c++ flags (.c, .cc)
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# LDFLAGS linker flags (don't use -Wl, frontend prefix)
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# ASFLAGS assembler flags (don't use -Wa, frontend prefix)
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# TARGET_ARCH microarchitecture flags (e.g. -march=native)
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DD ?= /bin/dd
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CP ?= /bin/cp -f
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RM ?= /bin/rm -f
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SED ?= /bin/sed
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MKDIR ?= /bin/mkdir -p
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TAGS ?= /usr/bin/ctags # emacs source builds or something breaks it
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ARFLAGS = rcsD
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SILENT ?= 1
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ZFLAGS ?=
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XARGS ?= xargs -P4 -rs8000
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NICE ?= build/actuallynice
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RAGEL ?= ragel
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DOT ?= dot
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GZ ?= gzip
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CLANG = clang-10
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FC = gfortran #/opt/cross9f/bin/x86_64-linux-musl-gfortran
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# see build/compile, etc. which run third_party/gcc/unbundle.sh
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AS = o/third_party/gcc/bin/x86_64-linux-musl-as
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CC = o/third_party/gcc/bin/x86_64-linux-musl-gcc
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CXX = o/third_party/gcc/bin/x86_64-linux-musl-g++
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CXXFILT = o/third_party/gcc/bin/x86_64-linux-musl-c++filt
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LD = o/third_party/gcc/bin/x86_64-linux-musl-ld.bfd
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AR = build/archive
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NM = o/third_party/gcc/bin/x86_64-linux-musl-nm
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GCC = o/third_party/gcc/bin/x86_64-linux-musl-gcc
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STRIP = o/third_party/gcc/bin/x86_64-linux-musl-strip
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OBJCOPY = o/third_party/gcc/bin/x86_64-linux-musl-objcopy
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OBJDUMP = o/third_party/gcc/bin/x86_64-linux-musl-objdump
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ADDR2LINE = o/third_party/gcc/bin/x86_64-linux-musl-addr2line
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COMMA := ,
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PWD := $(shell pwd)
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IMAGE_BASE_VIRTUAL ?= 0x400000
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TMPDIR := $(shell build/findtmp)
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LOGFMT := $(shell build/getlogfmt)
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CCNAME := $(shell build/getccname $(CC))
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CCVERSION := $(shell build/getccversion $(CC))
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BLAH1 := $(shell build/zipobj 2>/dev/null)
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BLAH2 := $(shell build/package 2>/dev/null)
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export ADDR2LINE
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export OBJDUMP
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export CCNAME
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export CCVERSION
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export CP
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export DD
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export GZ
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export IMAGE_BASE_VIRTUAL
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export LOGFMT
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export MKDIR
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export MODE
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export RM
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export SED
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export SILENT
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export TMPDIR
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export ZFLAGS
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FTRACE = \
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-pg
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SANITIZER = \
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-fsanitize=leak \
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-fsanitize=undefined \
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-fsanitize=implicit-signed-integer-truncation \
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-fsanitize=implicit-integer-sign-change
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NO_MAGIC = \
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-mno-fentry \
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-fno-stack-protector \
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-fno-sanitize=all
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OLD_CODE = \
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-fno-strict-aliasing \
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-fno-strict-overflow
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TRADITIONAL = \
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-Wno-implicit-int \
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-Wno-return-type \
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-Wno-pointer-sign
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DEFAULT_CCFLAGS = \
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-Wall \
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-Werror \
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-fmerge-all-constants \
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-fdebug-prefix-map="$(PWD)"= \
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-frecord-gcc-switches
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DEFAULT_OFLAGS = \
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-g \
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-gdescribe-dies
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DEFAULT_COPTS = \
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-mno-red-zone \
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-fno-math-errno \
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-fno-trapping-math \
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-fno-fp-int-builtin-inexact \
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-fno-ident \
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-fno-common \
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-fno-gnu-unique \
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-fmerge-constants \
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-fstrict-aliasing \
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-fstrict-overflow \
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-fno-omit-frame-pointer \
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-fno-semantic-interposition \
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-mno-omit-leaf-frame-pointer
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MATHEMATICAL = \
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-O3 \
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-fwrapv
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DEFAULT_CPPFLAGS = \
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-DIMAGE_BASE_VIRTUAL=$(IMAGE_BASE_VIRTUAL) \
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-nostdinc \
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-iquote .
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DEFAULT_CFLAGS = \
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-std=gnu2x
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DEFAULT_CXXFLAGS = \
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-std=gnu++11 \
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-fno-rtti \
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-fno-exceptions \
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-fuse-cxa-atexit \
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-fno-threadsafe-statics \
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-Wno-int-in-bool-context \
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-Wno-narrowing
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DEFAULT_ASFLAGS = \
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-W \
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-I. \
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--noexecstack
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DEFAULT_LDFLAGS = \
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-static \
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-nostdlib \
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-m elf_x86_64 \
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--gc-sections \
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--build-id=none \
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--cref -Map=$@.map \
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--no-dynamic-linker \
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-z max-page-size=0x1000 \
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-Ttext-segment=$(IMAGE_BASE_VIRTUAL)
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ASONLYFLAGS = \
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-g \
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--debug-prefix-map="$(PWD)"=
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DEFAULT_LDLIBS =
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MCA = llvm-mca-10 \
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-mtriple=x86_64-pc-linux-gnu \
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-iterations=3 \
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-instruction-info \
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-iterations=3 \
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-all-stats \
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-all-views \
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-timeline
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cc.flags = \
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$(DEFAULT_CCFLAGS) \
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$(CONFIG_CCFLAGS) \
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$(CCFLAGS) \
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$(OVERRIDE_CCFLAGS)
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o.flags = \
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$(DEFAULT_OFLAGS) \
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$(CONFIG_OFLAGS) \
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$(OFLAGS) \
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$(OVERRIDE_OFLAGS)
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cpp.flags = \
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$(DEFAULT_CPPFLAGS) \
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$(CONFIG_CPPFLAGS) \
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$(CPPFLAGS) \
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$(OVERRIDE_CPPFLAGS) \
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-include libc/integral/normalize.inc
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copt.flags = \
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$(TARGET_ARCH) \
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$(DEFAULT_COPTS) \
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$(CONFIG_COPTS) \
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$(COPTS) \
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$(OVERRIDE_COPTS)
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f.flags = \
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$(DEFAULT_FFLAGS) \
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$(CONFIG_FFLAGS) \
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$(FFLAGS) \
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$(OVERRIDE_FFLAGS)
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c.flags = \
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$(DEFAULT_CFLAGS) \
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$(CONFIG_CFLAGS) \
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$(CFLAGS) \
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$(OVERRIDE_CFLAGS)
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cxx.flags = \
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$(DEFAULT_CXXFLAGS) \
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$(CONFIG_CXXFLAGS) \
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$(CXXFLAGS) \
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$(OVERRIDE_CXXFLAGS)
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s.flags = \
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$(DEFAULT_ASFLAGS) \
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$(CONFIG_ASFLAGS) \
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$(ASFLAGS) \
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$(OVERRIDE_ASFLAGS)
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S.flags = $(addprefix -Wa$(COMMA),$(s.flags))
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LD.libs = \
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$(LDLIBS) \
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$(LOADLIBES) \
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$(DEFAULT_LDLIBS) \
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$(CONFIG_LDLIBS) \
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$(LDLIBS) \
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$(DEFAULT_LIBS) \
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$(CONFIG_LIBS) \
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$(LIBS)
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COMPILE.c.flags = $(cc.flags) $(cpp.flags) $(copt.flags) $(c.flags)
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COMPILE.cxx.flags = $(cc.flags) $(cpp.flags) $(copt.flags) $(cxx.flags)
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COMPILE.f.flags = $(cc.flags) $(copt.flags) $(f.flags)
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COMPILE.F.flags = $(cc.flags) $(cpp.flags) $(copt.flags) $(f.flags)
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COMPILE.i.flags = $(cc.flags) $(copt.flags) $(c.flags)
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COMPILE.ii.flags = $(cc.flags) $(copt.flags) $(cxx.flags)
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LINK.flags = $(DEFAULT_LDFLAGS) $(CONFIG_LDFLAGS) $(LDFLAGS)
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OBJECTIFY.c.flags = $(OBJECTIFY.S.flags) $(c.flags)
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OBJECTIFY.cxx.flags = $(OBJECTIFY.S.flags) $(cxx.flags)
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OBJECTIFY.s.flags = $(ASONLYFLAGS) $(s.flags)
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OBJECTIFY.S.flags = $(copt.flags) $(cc.flags) $(o.flags) $(cpp.flags) $(S.flags)
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OBJECTIFY.f.flags = $(copt.flags) $(cc.flags) $(o.flags) $(copt.flags) $(S.flags) $(f.flags)
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OBJECTIFY.F.flags = $(OBJECTIFY.f.flags) $(cpp.flags)
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PREPROCESS.flags = -E $(copt.flags) $(cc.flags) $(cpp.flags)
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PREPROCESS.lds.flags = -D__LINKER__ $(filter-out -g%,$(PREPROCESS.flags)) -P -xc
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COMPILE.c = $(CC) -S $(COMPILE.c.flags)
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COMPILE.cxx = $(CXX) -S $(COMPILE.cxx.flags)
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COMPILE.i = $(CC) -S $(COMPILE.i.flags)
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COMPILE.f = $(FC) -S $(COMPILE.f.flags)
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COMPILE.F = $(FC) -S $(COMPILE.F.flags)
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OBJECTIFY.s = $(AS) $(OBJECTIFY.s.flags)
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OBJECTIFY.S = $(CC) $(OBJECTIFY.S.flags) -c
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OBJECTIFY.f = $(FC) $(OBJECTIFY.f.flags) -c
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OBJECTIFY.F = $(FC) $(OBJECTIFY.F.flags) -c
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OBJECTIFY.c = $(CC) $(OBJECTIFY.c.flags) -c
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OBJECTIFY.cxx = $(CXX) $(OBJECTIFY.cxx.flags) -c
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PREPROCESS = $(CC) $(PREPROCESS.flags)
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PREPROCESS.lds = $(CC) $(PREPROCESS.lds.flags)
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LINK = build/link $(LD) $(LINK.flags)
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ELF = o/libc/elf/elf.lds
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ELFLINK = ACTION=LINK.elf $(LINK) $(LINKARGS) $(OUTPUT_OPTION)
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ARCHIVE = $(AR) $(ARFLAGS)
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LINKARGS = $(patsubst %.lds,-T %.lds,$(call uniqr,$(LD.libs) $(filter-out %.pkg,$^)))
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LOLSAN = build/lolsan -b $(IMAGE_BASE_VIRTUAL)
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# The compiler won't generate %xmm code for sources extensioned .greg.c,
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# which is needed for C modules wanting to run at the executive level or
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# during privileged runtime states, e.g. code morphing.
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OBJECTIFY.greg.c = \
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$(CC) \
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$(filter-out -pg,$(OBJECTIFY.c.flags)) \
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-D__MGENERAL_REGS_ONLY__ \
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-mgeneral-regs-only \
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-fno-stack-protector \
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-fno-instrument-functions \
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-fno-optimize-sibling-calls \
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-fno-sanitize=all \
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-c
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OBJECTIFY.ansi.c = $(CC) $(OBJECTIFY.c.flags) -ansi -Wextra -Werror -pedantic-errors -c
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OBJECTIFY.c99.c = $(CC) $(OBJECTIFY.c.flags) -std=c99 -Wextra -Werror -pedantic-errors -c
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OBJECTIFY.c11.c = $(CC) $(OBJECTIFY.c.flags) -std=c11 -Wextra -Werror -pedantic-errors -c
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OBJECTIFY.c2x.c = $(CC) $(OBJECTIFY.c.flags) -std=c2x -Wextra -Werror -pedantic-errors -c
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OBJECTIFY.real.c = \
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$(GCC) \
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-x-no-pg \
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$(OBJECTIFY.c.flags) \
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-wrapper build/realify.sh \
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-D__REAL_MODE__ \
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-ffixed-r8 \
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-ffixed-r9 \
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-ffixed-r10 \
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-ffixed-r11 \
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-ffixed-r12 \
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-ffixed-r13 \
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-ffixed-r14 \
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-ffixed-r15 \
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-mno-red-zone \
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-fcall-used-rbx \
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-fno-jump-tables \
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-fno-shrink-wrap \
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-fno-schedule-insns2 \
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-flive-range-shrinkage \
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-fno-omit-frame-pointer \
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-momit-leaf-frame-pointer \
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-mpreferred-stack-boundary=3 \
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-fno-delete-null-pointer-checks \
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-c
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OBJECTIFY.ncabi.c = \
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$(GCC) \
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$(OBJECTIFY.c.flags) \
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-mno-sse \
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-mfpmath=387 \
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-mno-fentry \
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-fno-stack-protector \
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-fno-instrument-functions \
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-fno-optimize-sibling-calls \
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-fno-sanitize=all \
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-fcall-saved-rcx \
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-fcall-saved-rdx \
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-fcall-saved-rdi \
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-fcall-saved-rsi \
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-fcall-saved-r8 \
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-fcall-saved-r9 \
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-fcall-saved-r10 \
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-fcall-saved-r11 \
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-c \
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-xc
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OBJECTIFY.initabi.c = \
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$(GCC) \
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$(OBJECTIFY.c.flags) \
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-mno-fentry \
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-fno-stack-protector \
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-fno-instrument-functions \
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-fno-optimize-sibling-calls \
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-fno-sanitize=all \
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-fcall-saved-rdi \
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-fcall-saved-rsi \
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-c
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TAGSFLAGS = \
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-e \
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-a \
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--if0=no \
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--langmap=c:.c.h.i \
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--line-directives=yes \
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--exclude=libc/nt/struct/imagefileheader.internal.h \
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--exclude=libc/nt/struct/filesegmentelement.h
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