dtrace-prelink.sh

   1 #!/bin/sh
   2 #
   3 # dtrace-prelink.sh: DTrace helper script for Mono
   4 #
   5 # Authors:
   6 #   Andreas Faerber <andreas.faerber@web.de>
   7 #
   8
   9 # Assume that PIC object files live in .libs/, non-PIC code in ./
  10 PIC=no
  11 if test "$1" = "--pic"; then
  12         PIC=yes
  13         shift
  14 fi
  15
  16 OBJ="$1"
  17 PROV="$2"
  18
  19 shift
  20 shift
  21
  22 FILES="$*"
  23
  24 OBJS=
  25 TMPDIR=.dtrace
  26 mkdir -p "${TMPDIR}"
  27
  28 # Extract relevant object files to temporary directories
  29 for FILE in ${FILES}; do
  30         if echo "${FILE}" | grep .la > /dev/null; then
  31                 LIBDIR=`dirname ${FILE}`
  32                 LIB=".libs/`basename ${FILE} .la`.a"
  33                 DIR="${TMPDIR}/`basename ${FILE}`"
  34                 mkdir -p ${DIR}
  35                 (cd "${DIR}" && ${AR} x "../../${LIBDIR}/${LIB}")
  36                 TMPOBJS=`ls -1 "${DIR}"`
  37                 for TMPOBJ in ${TMPOBJS}; do
  38                         LO=`basename "${TMPOBJ}" .o`.lo
  39                         SRCOBJ="${TMPOBJ}"
  40                         if test x${PIC} = xyes; then
  41                                 SRCOBJ=".libs/${SRCOBJ}"
  42                         fi
  43                         # Overwrite with original version
  44                         cp "${LIBDIR}/${SRCOBJ}" "${DIR}/${TMPOBJ}" || cp "${LIBDIR}/${TMPOBJ}" "${DIR}/${TMPOBJ}" || exit
  45                         # Add to list
  46                         OBJS="${OBJS} ${DIR}/${TMPOBJ}"
  47                 done
  48         fi
  49         if echo "${FILE}" | grep .lo > /dev/null; then
  50                 DIR=`dirname ${FILE}`
  51                 SRCOBJ=`basename ${FILE} .lo`.o
  52                 if test x${PIC} = xyes; then
  53                         SRCOBJ=".libs/${SRCOBJ}"
  54                 fi
  55                 OBJS="${OBJS} ${DIR}/${SRCOBJ}"
  56         fi
  57 done
  58
  59 # Run dtrace -G over the temporary objects
  60 ${DTRACE} -G ${DTRACEFLAGS} -s "${PROV}" -o "${OBJ}" ${OBJS} || exit
  61
  62 # Update the archives with the temporary, modified object files so that they are linked in
  63 for FILE in ${FILES}; do
  64         if echo "${FILE}" | grep .la > /dev/null; then
  65                 LIBDIR=`dirname ${FILE}`
  66                 LIB=".libs/`basename ${FILE} .la`.a"
  67                 DIR="${TMPDIR}/`basename ${FILE}`"
  68                 (cd "${DIR}" && ${AR} r "../../${LIBDIR}/${LIB}" *.o)
  69         fi
  70         # .lo files were modified in-place
  71 done
  72
  73 rm -rf "${TMPDIR}"
  74