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check later whether the final link may succeed, and include "sh.h" → catch inlining bugs in system headers fighting with -c combine

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tg 2011-07-16 18:03:04 +00:00
parent 0168f6dc48
commit 1b9bee46fc
1 changed files with 46 additions and 41 deletions
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87
Build.sh
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@ -1,5 +1,5 @@
#!/bin/sh #!/bin/sh
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.484 2011/07/07 21:24:51 tg Exp $' srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.485 2011/07/16 18:03:04 tg Exp $'
#- #-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 # Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
# Thorsten Glaser <tg@mirbsd.org> # Thorsten Glaser <tg@mirbsd.org>
@ -1001,46 +1001,6 @@ if test 1 = $i; then
ac_flags 1 wall -Wall ac_flags 1 wall -Wall
fi fi
# check whether whatever we use for the final link will succeed
if test $cm = makefile; then
: nothing to check
else
HAVE_LINK_WORKS=x
ac_testinit link_works '' 'checking if the final link command may succeed'
fv=1
cat >conftest.c <<-'EOF'
#include <stdio.h>
int main(void) { printf("Hello, World!\n"); return (0); }
EOF
case $cm in
llvm)
v "$CC $CFLAGS $CPPFLAGS $NOWARN -emit-llvm -c conftest.c" || fv=0
rmf mksh.s
test $fv = 0 || v "llvm-link -o - conftest.o | opt $optflags | llc -o mksh.s" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn mksh.s $LIBS $ccpr"
;;
dragonegg)
v "$CC $CFLAGS $CPPFLAGS $NOWARN -S -flto conftest.c" || fv=0
test $fv = 0 || v "mv conftest.s conftest.ll"
test $fv = 0 || v "llvm-as conftest.ll" || fv=0
rmf mksh.s
test $fv = 0 || v "llvm-link -o - conftest.bc | opt $optflags | llc -o mksh.s" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn mksh.s $LIBS $ccpr"
;;
combine)
v "$CC $CFLAGS $CPPFLAGS $LDFLAGS -fwhole-program --combine $NOWARN -o $tcfn conftest.c $LIBS $ccpr"
;;
lto|normal)
cm=normal
v "$CC $CFLAGS $CPPFLAGS $NOWARN -c conftest.c" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn conftest.o $LIBS $ccpr"
;;
esac
test -f $tcfn || fv=0
ac_testdone
test $fv = 1 || exit 1
fi
phase=x phase=x
# The following tests run with -Werror or similar (all compilers) if possible # The following tests run with -Werror or similar (all compilers) if possible
NOWARN=$DOWARN NOWARN=$DOWARN
@ -1192,6 +1152,51 @@ ac_header strings.h sys/types.h string.h
ac_header ulimit.h sys/types.h ac_header ulimit.h sys/types.h
ac_header values.h ac_header values.h
#
# check whether whatever we use for the final link will succeed
#
if test $cm = makefile; then
: nothing to check
else
HAVE_LINK_WORKS=x
ac_testinit link_works '' 'checking if the final link command may succeed'
fv=1
cat >conftest.c <<-'EOF'
#define EXTERN
#define MKSH_INCLUDES_ONLY
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.485 2011/07/16 18:03:04 tg Exp $");
int main(void) { printf("Hello, World!\n"); return (0); }
EOF
case $cm in
llvm)
v "$CC $CFLAGS $CPPFLAGS $NOWARN -emit-llvm -c conftest.c" || fv=0
rmf mksh.s
test $fv = 0 || v "llvm-link -o - conftest.o | opt $optflags | llc -o mksh.s" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn mksh.s $LIBS $ccpr"
;;
dragonegg)
v "$CC $CFLAGS $CPPFLAGS $NOWARN -S -flto conftest.c" || fv=0
test $fv = 0 || v "mv conftest.s conftest.ll"
test $fv = 0 || v "llvm-as conftest.ll" || fv=0
rmf mksh.s
test $fv = 0 || v "llvm-link -o - conftest.bc | opt $optflags | llc -o mksh.s" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn mksh.s $LIBS $ccpr"
;;
combine)
v "$CC $CFLAGS $CPPFLAGS $LDFLAGS -fwhole-program --combine $NOWARN -o $tcfn conftest.c $LIBS $ccpr"
;;
lto|normal)
cm=normal
v "$CC $CFLAGS $CPPFLAGS $NOWARN -c conftest.c" || fv=0
test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn conftest.o $LIBS $ccpr"
;;
esac
test -f $tcfn || fv=0
ac_testdone
test $fv = 1 || exit 1
fi
# #
# Environment: definitions # Environment: definitions
# #