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Add precompiled header support to cosmocc

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Justine Tunney 2024-07-31 06:04:41 -07:00
parent f8cfc89eba
commit 6ac3d3b804
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GPG key ID: BE714B4575D6E328
2 changed files with 102 additions and 17 deletions
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52
tool/cosmocc/bin/cosmocross
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@ -59,8 +59,17 @@ if [ x"$ARCH" = x"$PROG" ]; then
fatal_error "cosmocross must be run via cross compiler"
fi
X=
NEED_X=
for x; do
if [ x"$x" = x"-mtiny" ]; then
if [ -n "$NEED_X" ]; then
NEED_X=
X=$x
elif [ x"$x" = x"-x" ]; then
NEED_X=1
elif [ x"$x" != x"${x#-x}" ]; then
X=${x#-x}
elif [ x"$x" = x"-mtiny" ]; then
MODE=tiny
elif [ x"$x" = x"-mdbg" ]; then
MODE=dbg
@ -79,16 +88,26 @@ else
LIB="$BIN/../$ARCH-linux-cosmo/lib"
fi
if [ x"$X" = x"c" ] || [ x"$X" = x"c-header" ]; then
CPLUSPLUS=0
elif [ x"$X" = x"c++" ] || [ x"$X" = x"c++-header" ]; then
CPLUSPLUS=1
elif [ x"$PROG" != x"${PROG%++}" ]; then
CPLUSPLUS=1
else
CPLUSPLUS=0
fi
CC="$BIN/$ARCH-linux-cosmo-gcc"
CRT="$LIB/crt.o"
LDLIBS="-lcosmo"
if [ -z "$COSMOS" ]; then
LDFLAGS="$LDFLAGS -L$LIB -L$BIN/../$ARCH-linux-cosmo/lib"
LDFLAGS="$LDFLAGS -L$LIB -L$BIN/../$ARCH-linux-cosmo/lib"
else
LDFLAGS="$LDFLAGS -L$COSMOS/lib -L$LIB -L$BIN/../$ARCH-linux-cosmo/lib"
CPPFLAGS="$CPPFLAGS -I$COSMOS/include"
LDFLAGS="$LDFLAGS -L$COSMOS/lib -L$LIB -L$BIN/../$ARCH-linux-cosmo/lib"
CPPFLAGS="$CPPFLAGS -I$COSMOS/include"
fi
if [ x"$PROG" != x"${PROG%++}" ]; then
if [ $CPLUSPLUS -eq 1 ]; then
CC="$BIN/$ARCH-linux-cosmo-g++"
CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -fuse-cxa-atexit"
CPPFLAGS="-isystem $BIN/../include/third_party/libcxx $CPPFLAGS"
@ -219,6 +238,27 @@ if [ $RELOCATABLE -eq 1 ]; then
LDFLAGS="$LDFLAGS -r"
fi
# precompiled header mode
if [ $INTENT != cpp ]; then
if [ -z "$X" ]; then
ONLY_HEADER_INPUTS=1
for x; do
if [ x"$x" = x"${x#-*}" ] && # !startswith(x, "-")
[ x"$x" = x"${x%.h}" ] && # !endswith(x, ".h")
[ x"$x" = x"${x%.hpp}" ]; then # !endswith(x, ".hpp")
ONLY_HEADER_INPUTS=0
break
fi
done
if [ $ONLY_HEADER_INPUTS -eq 1 ]; then
INTENT=h
fi
elif [ x"$X" = x"c-header" ] ||
[ x"$X" = x"c++-header" ]; then
INTENT=h
fi
fi
# support --ftrace unless optimizing for size
if [ x"$OPT" != x"-Os" ] && # $OPT != -Os
[ x"$MODE" != x"optlinux" ] && # $MODE not optlinux
@ -242,7 +282,7 @@ fi
if [ $INTENT = cpp ]; then
set -- "$CC" $PLATFORM $CPPFLAGS "$@"
elif [ $INTENT = cc ] || [ $INTENT = s ]; then
elif [ $INTENT = cc ] || [ $INTENT = s ] || [ $INTENT = h ]; then
set -- "$CC" $PLATFORM $PREDEF $CFLAGS $CPPFLAGS "$@" $PRECIOUS
else
set -- "$CC" $PLATFORM $PREDEF $CFLAGS $CPPFLAGS $CRT "$@" $LDFLAGS $LDLIBS $PRECIOUS