mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
23e235b7a5
This change integrates e58abc1110b335a3341e8ad5821ad8e3880d9bb2 from https://github.com/ahgamut/musl-cross-make/ which fixes the issues we were having with our C language extension for symbolic constants. This change also performs some code cleanup and bug fixes to getaddrinfo(). It's now possible to compile projects like ncurses, readline and python without needing to patch anything upstream, except maybe a line or two. Pretty soon it should be possible to build a Linux distro on Cosmo.
148 lines
4.1 KiB
Bash
Executable file
148 lines
4.1 KiB
Bash
Executable file
#!/bin/sh
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# replacement for c++ command
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#
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# we assume you run the following beforehand
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#
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# sudo chmod 1777 /opt
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# cd /opt
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# git clone https://github.com/jart/cosmopolitan cosmo
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# cd cosmo
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# make -j
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#
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# you can then use it to build open source projects, e.g.
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#
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# export CC=cosmocc
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# export CXX=cosmoc++
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# export LD=cosmoc++
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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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COSMO=/opt/cosmo
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COSMOS=/opt/cosmos
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if [ "$1" = "--version" ]; then
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cat <<'EOF'
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x86_64-unknown-cosmo-g++ (GCC) 11.2.0
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Copyright (C) 2019 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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EOF
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exit 0
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fi
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UNDEF="-D__COSMOPOLITAN__"
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PREDEF="-include libc/integral/normalize.inc"
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CXX="$COSMO/o/third_party/gcc/bin/x86_64-linux-musl-g++"
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OBJCOPY="$COSMO/o/third_party/gcc/bin/x86_64-linux-musl-objcopy"
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CCFLAGS="-g -fdata-sections -ffunction-sections -fno-pie -mno-tls-direct-seg-refs -mno-red-zone -fportcosmo"
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CXXFLAGS="-fno-exceptions -fuse-cxa-atexit -fno-threadsafe-statics"
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CPPFLAGS="-DNDEBUG -nostdinc -iquote /opt/cosmo -isystem $COSMOS/include -isystem $COSMO/libc/isystem"
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LDFLAGS="-static -no-pie -nostdlib -fuse-ld=bfd -Wl,-melf_x86_64 -Wl,--gc-sections -L$COSMOS/lib -Wl,-T,$COSMO/o/ape/public/ape.lds $COSMO/o/ape/ape-no-modify-self.o $COSMO/o/libc/crt/crt.o"
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LDLIBS="$COSMO/o/third_party/libcxx/libcxx.a $COSMO/o/cosmopolitan.a"
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if [ ! -d "$COSMO" ]; then
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echo "you need to checkout cosmopolitan to your $COSMO directory" >&2
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exit 1
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fi
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if [ ! -d "$COSMOS" ]; then
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echo "you need to create your $COSMOS directory" >&2
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exit 1
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fi
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# auto-install some shell libraries
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if [ ! -d "$COSMOS/lib" ]; then
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mkdir "$COSMOS/lib"
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for lib in c dl gcc_s m pthread resolv rt z stdc++; do
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printf '\041\074\141\162\143\150\076\012' >"$COSMOS/lib/lib$lib.a"
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done
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fi
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OPT=
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HAS_C=0
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HAS_O=0
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HAS_E=0
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FIRST=1
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OUTPUT=
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NEED_OUTPUT=
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FRAME=-fno-omit-frame-pointer
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for x; do
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if [ $FIRST -eq 1 ]; then
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set --
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FIRST=0
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fi
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if [ x"$x" = x"-Werror" ]; 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"$x" = x"-pedantic" ]; then
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# this toolchain is intended for building other people's code
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# we don't need the compiler's assistance to be more portable
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continue
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elif [ x"$x" != x"${x#-O}" ]; then
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OPT=$x
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elif [ x"$x" = x"-c" ]; then
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HAS_C=1
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elif [ x"$x" = x"-E" ]; then
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HAS_E=1
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elif [ x"$x" = x"-o" ]; then
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HAS_O=1
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NEED_OUTPUT=1
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elif [ x"$x" != x"${x#-o}" ]; then
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HAS_O=1
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OUTPUT=${x#-o}
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elif [ -n "$NEED_OUTPUT" ]; then
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NEED_OUTPUT=
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OUTPUT=$x
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elif [ x"$x" = x"-fpic" ]; then
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continue
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elif [ x"$x" = x"-fPIC" ]; then
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continue
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elif [ x"$x" = x"-shared" ]; then
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echo "error: cosmocc -shared isn't supported" >&2
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exit 1
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elif [ x"$x" = x"-fomit-frame-pointer" ] || [ x"$x" = x"-fno-omit-frame-pointer" ]; then
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FRAME=$x
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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"$OPT" != x"-Os" ]; then
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# support --ftrace unless optimizing for size
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CXXFLAGS="$CXXFLAGS -fpatchable-function-entry=18,16"
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fi
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LINKING=
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if [ "$HAS_E" = "1" ]; then
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set -- $UNDEF $CCFLAGS $CPPFLAGS "$@"
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elif [ "$HAS_C" = "1" ]; then
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set -- $UNDEF $PREDEF $CCFLAGS $CXXFLAGS $CPPFLAGS "$@" $FRAME
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else
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LINKING=1
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set -- $UNDEF $PREDEF $LDFLAGS $CXXFLAGS $CPPFLAGS "$@" $LDLIBS -Wl,-z,common-page-size=65536 -Wl,-z,max-page-size=65536 $FRAME
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fi
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set -- "$CXX" "$@"
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printf '(cd %s; %s)\n' "$PWD" "$*" >>/tmp/build.log
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"$@" || exit
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if [ -n "$LINKING" ] && [ x"$OUTPUT" != x"" ]; then
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if [ x"$OUTPUT" != x"${OUTPUT%.com}" ] ||
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[ x"$OUTPUT" != x"${OUTPUT%.exe}" ]; then
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# cosmocc -o foo.com ...
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# -> foo.com (ape)
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# -> foo.com.dbg (elf)
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mv -f "$OUTPUT" "$OUTPUT.dbg" || exit
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"$OBJCOPY" -S -O binary "$OUTPUT.dbg" "$OUTPUT" || exit
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else
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# cosmocc -o foo ...
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# -> foo (elf)
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# -> foo.com (ape)
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# -> foo.com.dbg (elf)
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cp -f "$OUTPUT" "$OUTPUT.com.dbg" || exit
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"$OBJCOPY" -S -O binary "$OUTPUT" "$OUTPUT.com" || exit
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fi
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fi
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