1 #!/usr/bin/ksh
   2 #
   3 # This file and its contents are supplied under the terms of the
   4 # Common Development and Distribution License ("CDDL"), version 1.0.
   5 # You may only use this file in accordance with the terms of version
   6 # 1.0 of the CDDL.
   7 #
   8 # A full copy of the text of the CDDL should have accompanied this
   9 # source.  A copy of the CDDL is also available via the Internet at
  10 # http://www.illumos.org/license/CDDL.
  11 #
  12 
  13 #
  14 # Copyright 2018, Richard Lowe.
  15 #
  16 
  17 # Test that a simple use of linker-sets, tat is, automatically generated start
  18 # and end symbols for sections can be generated and used.
  19 
  20 tmpdir=/tmp/test.$$
  21 mkdir $tmpdir
  22 cd $tmpdir
  23 
  24 cleanup() {
  25     cd /
  26     rm -fr $tmpdir
  27 }
  28 
  29 trap 'cleanup' EXIT
  30 
  31 cat > broken.c <<EOF
  32 void *__start_text;
  33 
  34 int
  35 main()
  36 {
  37         return (0);
  38 }
  39 EOF
  40 
  41 # We expect any alternate linker to be in LD_ALTEXEC for us already
  42 gcc -o broken broken.c -Wall -Wextra -Wl,-zfatal-warnings > in-use.$$.out 2>&1
  43 if (( $? == 0 )); then
  44     print -u2 "use of a reserved symbol didn't fail"
  45     exit 1;
  46 fi
  47 
  48 grep -q "^ld: warning: reserved symbol '__start_text' already defined in file" in-use.$$.out
  49 if (( $? != 0 )); then
  50     print -u2 "use of a reserved symbol failed for the wrong reason"
  51     exit 1;
  52 fi