2 # Script to test if gcc's -combine option works properly.
5 TMPFILE1=out/tmp_testcompile1.c
6 TMPFILE1o=out/tmp_testcompile1.o
7 TMPFILE2=out/tmp_testcompile2.c
8 TMPFILE2o=out/tmp_testcompile2.o
9 TMPFILE3o=out/tmp_testcompile3.o
11 # Test for "-fwhole-program"
12 gcc -fwhole-program -S -o /dev/null -xc /dev/null > /dev/null 2>&1
14 echo "This version of gcc does not support -fwhole-program." > /dev/fd/2
15 echo "Please upgrade to gcc v4.1 or later" > /dev/fd/2
20 # Test if "visible" functions are marked global.
21 cat - > $TMPFILE1 <<EOF
22 void __attribute__((externally_visible)) t1() { }
24 $CC -c -fwhole-program $TMPFILE1 -o $TMPFILE1o > /dev/null 2>&1
25 cat - > $TMPFILE2 <<EOF
27 void __attribute__((externally_visible)) main() { t1(); }
29 $CC -c -fwhole-program $TMPFILE2 -o $TMPFILE2o > /dev/null 2>&1
30 $CC $TMPFILE1o $TMPFILE2o -o $TMPFILE3o > /dev/null 2>&1
32 echo " Working around non-global functions in -fwhole-program" > /dev/fd/2
35 # Test if "-combine" works
37 cat - > $TMPFILE1 <<EOF
38 struct ts { union { int u1; struct { int u2; }; }; };
39 void t1(struct ts *r);
41 $CC -c -fwhole-program -combine $TMPFILE1 $TMPFILE1 -o $TMPFILE1o > /dev/null 2>&1
43 #echo " Setting AVOIDCOMBINE=0" > /dev/fd/2
46 echo " Enabling AVOIDCOMBINE=1" > /dev/fd/2
50 rm -f $TMPFILE1 $TMPFILE1o $TMPFILE2 $TMPFILE2o $TMPFILE3o