3 # Used to narrow down a miscompilation to one .o file from a list. Please read
4 # the usage procedure, below, for command-line syntax (or run it with --help).
5 # This script depends on the llvm-native-gcc script.
7 if [ x$1 = x--make-linker-script ]
10 linker=./link-$program
11 echo "Building $program with llvm-native-gcc"
13 gmake -e $program CC=llvm-native-gcc CXX=llvm-native-gxx
14 echo "Erasing $program and re-linking it"
16 echo "rm -f $program" > $linker
17 gmake -n $program >> $linker
19 echo "Linker script created in $linker; testing it out"
20 output=`./$linker 2>&1`
22 *undefined*reference*__main*)
23 echo "$program appears to need a dummy __main function; adding one"
24 echo "void __main () { }" > __main.c
26 echo "Done; rebuilding $linker"
27 echo "rm -f $program" > $linker
28 gmake -n $program 2>&1 | sed '/gcc/s/$/__main.o/' >> $linker
29 ./$linker > /dev/null 2>&1
32 echo "WARNING: linker script didn't work"
38 echo "WARNING: linker script didn't work"
42 echo "Linker script created in $linker; please check it manually"
53 echo "$myname --make-linker-script PROGRAM"
54 echo "$myname OBJECTS-FILE PROGRAM LINKER CHECKER"
56 echo "OBJECTS-FILE is a text file containing the names of all the .o files"
57 echo "PROGRAM is the name of the executable under test"
58 echo "(there must also exist a Makefile in the current directory which"
59 echo "has PROGRAM as a target)"
60 echo "LINKER is the script that builds PROGRAM; try --make-linker-script"
61 echo "to automatically generate it"
62 echo "CHECKER is the script that exits 0 if PROGRAM is ok, 1 if it is not OK"
63 echo "(LINKER and CHECKER must be in your PATH, or you should specify ./)"
65 echo "Bugs to <gaeke@uiuc.edu>."
74 if [ -z "$checkfiles" ]
76 echo "ERROR: Must specify name of file w/ list of objects as 1st arg."
77 echo "(got \"$checkfiles\")"
80 if [ ! -f "$checkfiles" ]
82 echo "ERROR: $checkfiles not found"
87 echo "ERROR: Must specify name of program as 2nd arg."
92 echo "ERROR: Must specify name of link script as 3rd arg."
97 echo "ERROR: $linker not found or not executable"
98 echo "You may wish to try: $0 --make-linker-script $program"
103 echo "ERROR: Must specify name of $program check script as 3rd arg."
106 if [ ! -x "$checker" ]
108 echo "ERROR: $checker not found or not executable"
112 files=`cat $checkfiles`
113 echo "Recompiling everything with llvm-native-gcc"
117 gmake $f CC=llvm-native-gcc CXX=llvm-native-gxx
123 echo "Sorry, I can't help you, $program is OK when compiled with llvm-native-gcc"
128 echo Trying to compile $f with native gcc and rebuild $program
130 gmake ${f} CC=gcc > /dev/null 2>&1
132 echo Checking validity of new $program
136 okfiles="$okfiles $f"
138 echo Program is not OK
139 notokfiles="$notokfiles $f"
144 echo "Program is OK when these files are recompiled with native gcc: "
147 echo "Program is not OK when these files are recompiled with native gcc: "