grub-core/genmod.sh.in

   1 #! /bin/sh
   2 set -e
   3
   4 # Copyright (C) 2010 Free Software Foundation, Inc.
   5 #
   6 # This gensymlist.sh is free software; the author
   7 # gives unlimited permission to copy and/or distribute it,
   8 # with or without modifications, as long as this notice is preserved.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  12 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  13 # PARTICULAR PURPOSE.
  14
  15 #
  16 # Example:
  17 #
  18 # genmod.sh moddep.lst normal.module normal.mod
  19 #
  20
  21 moddep=$1
  22 infile=$2
  23 outfile=$3
  24
  25 tmpfile=${outfile}.tmp
  26 modname=`echo $infile | sed -e 's@\.module.*$@@'`
  27
  28 if ! grep ^$modname: $moddep >/dev/null; then
  29     echo "warning: moddep.lst has no dependencies for $modname" >&2
  30     exit 0
  31 fi
  32
  33 deps=`grep ^$modname: $moddep | sed s@^.*:@@`
  34
  35 # remove old files if any
  36 rm -f $tmpfile $outfile
  37
  38 if test x@TARGET_APPLE_LINKER@ != x1; then
  39     # stripout .modname and .moddeps sections from input module
  40     @TARGET_OBJCOPY@ -R .modname -R .moddeps $infile $tmpfile
  41
  42     # Attach .modname and .moddeps sections
  43     t1=`mktemp "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX"` || exit 1
  44     printf "$modname\0" >$t1
  45
  46     t2=`mktemp "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX"` || exit 1
  47     for dep in $deps; do printf "$dep\0" >> $t2; done
  48
  49     if test -n "$deps"; then
  50         @TARGET_OBJCOPY@ --add-section .modname=$t1 --add-section .moddeps=$t2 $tmpfile
  51     else
  52         @TARGET_OBJCOPY@ --add-section .modname=$t1 $tmpfile
  53     fi
  54     rm -f $t1 $t2
  55
  56         if test x@platform@ != xemu; then
  57             @TARGET_STRIP@ --strip-unneeded \
  58                 -K grub_mod_init -K grub_mod_fini \
  59                 -K _grub_mod_init -K _grub_mod_fini \
  60                 -R .note.gnu.gold-version -R .note.GNU-stack \
  61                 -R .note -R .comment $tmpfile || exit 1
  62         fi
  63         if ! test -z "${TARGET_OBJ2ELF}"; then
  64             "${TARGET_OBJ2ELF}" $tmpfile || exit 1
  65         fi
  66 else
  67     tmpfile2=${outfile}.tmp2
  68     t1=${outfile}.t1.c
  69     t2=${outfile}.t2.c
  70
  71     # remove old files if any
  72     rm -f $t1 $t2
  73
  74     cp $infile $tmpfile
  75
  76     # Attach .modname and .moddeps sections
  77     echo "char modname[]  __attribute__ ((section(\"_modname, _modname\"))) = \"$modname\";" >$t1
  78
  79     for dep in $deps; do echo "char moddep_$dep[] __attribute__ ((section(\"_moddeps, _moddeps\"))) = \"$dep\";" >>$t2; done
  80
  81     if test -n "$deps"; then
  82         @TARGET_CC@ @TARGET_LDFLAGS@ -ffreestanding -nostdlib -o $tmpfile2 $t1 $t2 $tmpfile -Wl,-r,-d
  83     else
  84         @TARGET_CC@ @TARGET_LDFLAGS@ -ffreestanding -nostdlib -o $tmpfile2 $t1 $tmpfile -Wl,-r,-d
  85     fi
  86     rm -f $t1 $t2 $tmpfile
  87     mv $tmpfile2 $tmpfile
  88
  89         cp $tmpfile $tmpfile.bin
  90         @TARGET_OBJCONV@ -f@TARGET_MODULE_FORMAT@ \
  91             -nr:_grub_mod_init:grub_mod_init \
  92             -nr:_grub_mod_fini:grub_mod_fini \
  93             -wd1106 -nu -nd $tmpfile.bin $tmpfile || exit 1
  94         rm -f $name.bin
  95 fi
  96 mv $tmpfile $outfile