scripts/gcc-plugin.sh

   1 #!/bin/sh
   2 srctree=$(dirname "$0")
   3
   4 SHOW_ERROR=
   5 if [ "$1" = "--show-error" ] ; then
   6         SHOW_ERROR=1
   7         shift || true
   8 fi
   9
  10 gccplugins_dir=$($3 -print-file-name=plugin)
  11 plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF
  12 #include "gcc-common.h"
  13 #if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX)
  14 #warning $2 CXX
  15 #else
  16 #warning $1 CC
  17 #endif
  18 EOF
  19 )
  20
  21 if [ $? -ne 0 ]
  22 then
  23         if [ -n "$SHOW_ERROR" ] ; then
  24                 echo "${plugincc}" >&2
  25         fi
  26         exit 1
  27 fi
  28
  29 case "$plugincc" in
  30         *"$1 CC"*)
  31                 echo "$1"
  32                 exit 0
  33                 ;;
  34
  35         *"$2 CXX"*)
  36                 # the c++ compiler needs another test, see below
  37                 ;;
  38
  39         *)
  40                 exit 1
  41                 ;;
  42 esac
  43
  44 # we need a c++ compiler that supports the designated initializer GNU extension
  45 plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF
  46 #include "gcc-common.h"
  47 class test {
  48 public:
  49         int test;
  50 } test = {
  51         .test = 1
  52 };
  53 EOF
  54 )
  55
  56 if [ $? -eq 0 ]
  57 then
  58         echo "$2"
  59         exit 0
  60 fi
  61
  62 if [ -n "$SHOW_ERROR" ] ; then
  63         echo "${plugincc}" >&2
  64 fi
  65 exit 1