mirror of
https://github.com/jart/cosmopolitan.git
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Introduce new fatcosmocc command
This new script is an alternative to the `cosmocc` command. It's still a work in progress. It abstracts all the gory details of building separate copies of your executable and then running the apelink.com program.
This commit is contained in:
Justine Tunney
parent
8fc778162e
commit
d53c335a45
35 changed files with 1151 additions and 525 deletions
310
bin/fatcosmocc
Executable file
310
bin/fatcosmocc
Executable file
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#!/bin/sh
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#
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# fat cosmopolitan c compiler
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#
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# - this command is a drop-in replacement for the cc or gcc command.
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# the difference is that (1) your binaries will be linked with the
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# cosmopolitan c library, rather than your system specific tooling
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# and (2) they'll be fat ape executables that run on the platforms
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#
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# * amd64
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# + linux
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# + macos
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# + windows
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# + freebsd
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# + openbsd
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# + netbsd
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# * arm64
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# + linux
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# + macos
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# + windows (non-native)
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#
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# - you need to use linux to build your binaries currently, but you
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# can scp and distribute the output files to the above platforms!
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#
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# installation
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#
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# sudo chmod 1777 /opt
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# git clone https://github.com/jart/cosmopolitan /opt/cosmo
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# export PATH="$PATH:/opt/cosmo/bin:/opt/cosmos/bin"
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# echo 'export PATH="$PATH:/opt/cosmo/bin:/opt/cosmos/bin"' >>~/.profile
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# fatcosmocc --update # pull and rebuild toolchain artifacts
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#
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# getting started
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#
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# fatcosmocc -o hello.com hello.c
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# ./foo.com
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# ./foo.com.dbg
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#
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# building open source projects
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#
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# export CC=fatcosmocc
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# export CXX=fatcosmoc++
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# ./configure --prefix=/opt/cosmos
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# make -j
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# make install
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#
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# cosmopolitan runtime flags
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#
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# ./hello.com --strace
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# ./hello.com --ftrace
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#
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# cosmpolitan runtime libraries
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#
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# #include <cosmo.h>
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# int main() {
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# ShowCrashReports();
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# __builtin_trap();
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# }
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#
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# building in tiny mode
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#
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# export MODE=tiny
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# fatcosmocc --update
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# fatcosmocc -Os -o foo.com foo.c
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#
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# building in debug mode
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#
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# export MODE=dbg
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# fatcosmocc --update
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# fatcosmocc -g -o foo.com foo.c
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#
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export PROG=${0##*/}
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export COSMO=${COSMO:-/opt/cosmo}
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export COSMOS=${COSMOS:-/opt/cosmos}
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export ORIGINAL="$0 $*"
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if [ "$1" = "--version" ]; then
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cat <<EOF
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$PROG (GCC) 11.2.0
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Copyright (C) 2019 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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EOF
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exit 0
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fi
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MODE=${MODE:-$m}
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if [ x"$MODE" = x"" ]; then
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MODE_AARCH64=aarch64
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elif [ x"$MODE" = x"tiny" ]; then
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MODE_AARCH64=aarch64-tiny
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elif [ x"$MODE" = x"zero" ]; then
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MODE_AARCH64=aarch64-zero
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elif [ x"$MODE" = x"dbg" ]; then
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MODE_AARCH64=aarch64-dbg
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else
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echo "$PROG: build MODE=$MODE not supported by fatcosmocc" >&2
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exit 1
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fi
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if [ "$1" = "--update" ]; then
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cd /opt/cosmo || exit
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if GIT=$(command -v git); then
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echo "$PROG: running git pull on cosmo..." >&2
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"$GIT" pull --quiet || exit
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fi
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echo "$PROG: building cosmo x86_64 toolchain..." >&2
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make --silent -j toolchain MODE="${MODE}" || exit
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echo "$PROG: building cosmo aarch64 toolchain..." >&2
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make --silent -j toolchain MODE="${MODE_AARCH64}" || exit
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"$COSMO/tool/scripts/setup-cosmos"
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echo "$PROG: successfully updated your cosmo toolchain" >&2
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exit
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fi
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if [ ! -d "$COSMO" ]; then
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echo "$PROG: you need to clone cosmopolitan to your $COSMO directory" >&2
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exit 1
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fi
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if [ ! -d "$COSMOS" ] ||
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[ ! -x "$COSMO/o/$MODE/cosmopolitan.a" ] ||
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[ ! -x "$COSMO/o/$MODE_AARCH64/cosmopolitan.a" ]; then
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echo "$PROG: you need to run: $PROG --update" >&2
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exit 1
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fi
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export FIXUPOBJ="$COSMO/o/$MODE/tool/build/fixupobj.com"
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OPT=
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FIRST=1
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OUTPUT=
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STRIP=0
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INTENT=ld
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GOT_SOME=0
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SAVE_TEMPS=0
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NEED_OUTPUT=
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FRAME=""
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for x; do
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if [ $FIRST -eq 1 ]; then
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set --
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FIRST=0
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fi
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if [ -n "$NEED_OUTPUT" ]; then
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NEED_OUTPUT=
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OUTPUT=$x
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continue
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fi
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if [ x"$x" = x"${x#-*}" ]; then
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GOT_SOME=1
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elif [ x"$x" = x"-o" ]; then
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NEED_OUTPUT=1
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continue
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elif [ x"$x" != x"${x#-o}" ]; then
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OUTPUT=${x#-o}
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continue
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elif [ x"$x" != x"${x#-O}" ]; then
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OPT=$x
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elif [ x"$x" = x"-c" ]; then
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INTENT=cc
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elif [ x"$x" = x"-E" ]; then
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INTENT=cpp
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elif [ x"$x" = x"-s" ]; then
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STRIP=1
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continue
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elif [ x"$x" = x"-save-temps" ]; then
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SAVE_TEMPS=1
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elif [ x"$x" = x"-fomit-frame-pointer" ]; then
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# Quoth Apple "The frame pointer register must always address a
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# valid frame record. Some functions — such as leaf functions or
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# tail calls — may opt not to create an entry in this list. As a
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# result, stack traces are always meaningful, even without debug
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# information."
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x="-momit-leaf-frame-pointer"
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elif [ x"$x" = x"-r" ] ||
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[ x"$x" = x"-pie" ] ||
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[ x"$x" = x"-frtti" ] ||
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[ x"$x" = x"-shared" ] ||
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[ x"$x" = x"-nostdlib" ] ||
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[ x"$x" = x"-mred-zone" ] ||
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[ x"$x" = x"-fexceptions" ] ||
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[ x"$x" = x"-fsanitize=thread" ]; then
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echo "$PROG: $x not supported" >&2
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exit 1
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elif [ x"$x" = x"-fsanitize=all" ] ||
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[ x"$x" = x"-fsanitize=address" ] ||
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[ x"$x" = x"-fsanitize=undefined" ]; then
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echo "$PROG: use cosmo MODE=dbg rather than passing $x" >&2
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exit 1
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elif [ x"$x" = x"-mno-red-zone" ]; then
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# "Any memory below the stack beyond the red zone is considered
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# volatile and may be modified by the operating system at any time."
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# https://devblogs.microsoft.com/oldnewthing/20190111-00/?p=100685
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continue
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elif [ x"$x" = x"-fpic" ] || [ x"$x" = x"-fPIC" ]; then
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# no support for building dynamic shared objects yet. reports
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# indicate that ignoring these flags, helps let autoconf know
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continue
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elif [ x"$x" = x"-Werror" ] || \
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[ x"$x" = x"-pedantic-errors" ]; then
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# this toolchain is intended for building other people's code
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# elevating warnings into errors, should only be done by devs
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continue
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elif [ x"$x" = x"-static-libgcc" ] || \
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[ x"$x" = x"-shared-libgcc" ]; then
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# cosmopolitan.a always has llvm compiler runtime static code
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continue
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fi
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set -- "$@" "$x"
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done
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if [ x"$MODE" = x"dbg" ]; then
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set -- \
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-fsanitize=address \
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-fsanitize=undefined \
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"$@"
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fi
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if [ x"$OPT" != x"-Os" ] &&
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[ x"${MODE#tiny}" != x"${MODE}" ]; then
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set -- \
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-fno-optimize-sibling-calls \
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-mno-omit-leaf-frame-pointer \
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"$@"
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fi
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set -- \
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-fno-pie \
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-fportcosmo \
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-fno-dwarf2-cfi-asm \
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-fno-unwind-tables \
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-fno-asynchronous-unwind-tables \
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-fno-semantic-interposition \
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-fno-math-errno \
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"$@" \
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-fno-omit-frame-pointer
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PLATFORM="-D__COSMOPOLITAN__"
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PREDEF="-include libc/integral/normalize.inc"
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CPPFLAGS="-nostdinc -iquote $COSMO -isystem $COSMOS/include -isystem $COSMO/libc/isystem"
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if [ "$GOT_SOME" -eq 0 ]; then
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echo "$PROG: fatal error: no input files" >&2
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echo "compilation terminated." >&2
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exit 1
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fi
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if [ $INTENT = cpp ]; then
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if [ -n "$OUTPUT" ]; then
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set -- "$@" -o"$OUTPUT"
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fi
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MODE="$MODE" "$COSMO/tool/scripts/fat-x86_64" \
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-U__x86_64__ $PLATFORM $CPPFLAGS "$@"
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exit
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fi
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if [ -z "$OUTPUT" ]; then
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if [ $INTENT = cc ]; then
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echo "$PROG: passing -c without -o flag not supported" >&2
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exit 1
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fi
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OUTPUT=a.out
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fi
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set -- $PLATFORM $PREDEF $CPPFLAGS "$@"
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out2=$(mktemp "${TMPDIR:-/tmp}/ccc.XXXXXX") || exit
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MODE="$MODE" \
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"$COSMO/tool/scripts/fat-x86_64" -o"$OUTPUT.x86_64" "$@" &
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pid1=$!
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MODE="$MODE_AARCH64" \
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"$COSMO/tool/scripts/fat-aarch64" -o"$OUTPUT.aarch64" "$@" 2>"$out2" &
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pid2=$!
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if ! wait $pid1; then
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wait
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rm -f "$out2"
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exit 1
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fi
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if ! wait $pid2; then
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wait
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echo "$PROG: aarch64 compiler failed with:" >&2
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cat "$out2" >&2
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rm -f "$out2"
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exit 1
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fi
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rm -f "$out2"
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set -- \
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"$COSMO/o/$MODE/tool/build/apelink.com" \
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-l "$COSMO/o/$MODE/ape/ape.elf" \
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-l "$COSMO/o/$MODE_AARCH64/ape/ape.elf" \
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-M "$COSMO/ape/ape-m1.c" \
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-o "$OUTPUT" \
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"$OUTPUT.x86_64" \
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"$OUTPUT.aarch64"
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printf '# %s\n(cd %s; %s)\n' "$ORIGINAL" "$PWD" "$*" >>"${TMPDIR:-/tmp}/build.log"
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"$@" || exit
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"$COSMO/o/$MODE/tool/build/pecheck.com" "$OUTPUT" || exit
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if [ $SAVE_TEMPS -eq 0 ]; then
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rm -f "$OUTPUT.x86_64" \
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"$OUTPUT.aarch64"
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fi
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