gcc/fixinc/fixinc.x86-linux-gnu

   1 #! /bin/sh
   2 #
   3 # The script is created for Cygnus by vmakarov@cygnus.com and based on
   4 # fixinc.wrap
   5 #
   6 # This script is designed for x86 with gnulibc of version 2.0 and less
   7 # for solution of problems with invalid asm-statements by creating
   8 # small wrappers around the include files containg the asm-statements.
   9 #
  10 # See README-fixinc for more information.
  11
  12
  13 # Directory in which to store the results.
  14 LIB=${1?"fixincludes: output directory not specified"}
  15
  16 # Make sure it exists.
  17 if [ ! -d $LIB ]; then
  18   mkdir $LIB || exit 1
  19 fi
  20
  21 # Make LIB absolute if it is relative.
  22 # Don't do this if not necessary, since may screw up automounters.
  23 case $LIB in
  24 /*)
  25         ;;
  26 *)
  27         cd $LIB; LIB=`${PWDCMD-pwd}`
  28         ;;
  29 esac
  30
  31 echo Building fixed headers in ${LIB}
  32
  33 file=selectbits.h
  34 echo Fixed $file for glibc-2.0.x
  35 rm -f $LIB/$file
  36 cat <<'__EOF__' >$LIB/$file
  37 /* This file fixes __FD_ZERO bug for glibc-2.0.x. */
  38 #ifndef _SELECTBITS_H_WRAPPER
  39 #include <features.h>
  40 #include_next <selectbits.h>
  41
  42 #if defined(__FD_ZERO) && defined(__GLIBC__) && defined(__GLIBC_MINOR__) && __GLIBC__ == 2 && __GLIBC_MINOR__ == 0
  43 #undef __FD_ZERO
  44 #define __FD_ZERO(fdsetp) \
  45   do { \
  46     int __d0, __d1; \
  47   __asm__ __volatile__ ("cld; rep; stosl" \
  48                         : "=&c" (__d0), "=&D" (__d1) \
  49                         : "a" (0), "0" (sizeof (__fd_set) \
  50                                         / sizeof (__fd_mask)), \
  51                           "1" ((__fd_mask *) (fdsetp)) \
  52                         : "memory"); \
  53   } while (0)
  54 #endif
  55
  56 #define _SELECTBITS_H_WRAPPER
  57 #endif /* _SELECTBITS_H_WRAPPER */
  58 __EOF__
  59 # Define _SELECTBITS_H_WRAPPER at the end of the wrapper, not
  60 # the start, so that if #include_next gets another instance of
  61 # the wrapper, this will follow the #include_next chain until
  62 # we arrive at the real <selectbits.h>.
  63 chmod a+r $LIB/$file
  64
  65 # asm/posix_types.h for libc version 1.x
  66 file=asm/posix_types.h
  67 echo Fixed $file for glibc-1.x
  68 rm -f $LIB/$file
  69 dir=`dirname $LIB/$file`
  70 if [ ! -d $dir ]; then
  71   mkdir -p $dir || exit 1
  72 fi
  73 cat <<'__EOF__' >$LIB/$file
  74 /* This file fixes __FD_ZERO bug for glibc-1.x. */
  75 #ifndef _POSIX_TYPES_H_WRAPPER
  76 #include <features.h>
  77 #include_next <asm/posix_types.h>
  78
  79 #if defined(__FD_ZERO) && !defined(__GLIBC__)
  80 #undef __FD_ZERO
  81 #define __FD_ZERO(fdsetp) \
  82   do { \
  83     int __d0, __d1; \
  84                 __asm__ __volatile__("cld ; rep ; stosl" \
  85                         : "=&c" (__d0), "=&D" (__d1) \
  86                         : "a" (0), "0" (__FDSET_LONGS), \
  87                           "1" ((__kernel_fd_set *) (fdsetp)) :"memory"); \
  88   } while (0)
  89 #endif
  90
  91 #define _POSIX_TYPES_H_WRAPPER
  92 #endif /* _POSIX_TYPES_H_WRAPPER */
  93 __EOF__
  94 # Define _POSIX_TYPES_H_WRAPPER at the end of the wrapper, not
  95 # the start, so that if #include_next gets another instance of
  96 # the wrapper, this will follow the #include_next chain until
  97 # we arrive at the real <asm/posix_types.h>.
  98 chmod a+r $LIB/$file
  99
 100 # gnu/types.h for libc version 1.x
 101 file=gnu/types.h
 102 echo Fixed $file for glibc-1.x
 103 rm -f $LIB/$file
 104 dir=`dirname $LIB/$file`
 105 if [ ! -d $dir ]; then
 106   mkdir -p $dir || exit 1
 107 fi
 108 cat <<'__EOF__' >$LIB/$file
 109 /* This file fixes __FD_ZERO bug for glibc-1.x. */
 110 #ifndef _TYPES_H_WRAPPER
 111 #include <features.h>
 112 #include_next <gnu/types.h>
 113
 114 #if defined(__FD_ZERO) && !defined(__GLIBC__)
 115 #undef __FD_ZERO
 116 # define __FD_ZERO(fdsetp) \
 117   do { \
 118     int __d0, __d1; \
 119         __asm__ __volatile__("cld ; rep ; stosl" \
 120                 : "=&c" (__d0), "=&D" (__d1) \
 121                 : "a" (0), "0" (__FDSET_LONGS), \
 122                   "1" ((__fd_set *) (fdsetp)) :"memory"); \
 123   } while (0)
 124 #endif
 125
 126 #define _TYPES_H_WRAPPER
 127 #endif /* _TYPES_H_WRAPPER */
 128 __EOF__
 129 # Define _TYPES_H_WRAPPER at the end of the wrapper, not the start,
 130 # so that if #include_next gets another instance of the wrapper,
 131 # this will follow the #include_next chain until we arrive at
 132 # the real <gnu/types.h>.
 133 chmod a+r $LIB/$file
 134
 135 if [ x${INSTALL_ASSERT_H} != x ]
 136 then
 137   cd ${ORIG_DIR}
 138   rm -f include/assert.h
 139   cp ${srcdir}/assert.h include/assert.h || exit 1
 140   chmod a+r include/assert.h
 141 fi
 142
 143 exit 0