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# Copyright (C) 2009 Sun Microsystems, Inc
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# Generates an ELF object file with dtrace entry points.
# This object that must to be linked with together with
# the target. This script needs to run on Solaris only
# Do not follow symlinks in GLOB_RECURSE
CMAKE_POLICY(SET CMP0009 NEW)
FILE(REMOVE ${OUTFILE})
MACRO(CONVERT_TO_RELATIVE_PATHS files rel_paths)
GET_FILENAME_COMPONENT(abs_dir . ABSOLUTE)
SET(${rel_paths})
FOREACH(file ${files})
FILE(RELATIVE_PATH rel ${abs_dir} ${file})
LIST(APPEND ${rel_paths} ${rel})
ENDFOREACH()
ENDMACRO()
IF(TYPE STREQUAL "MERGE")
# Rerun dtrace on objects that are already in static libraries.
# Object paths are stored in text files named 'dtrace_objects'
# in the input directores. We have to copy the objects into temp.
# directory, as running dtrace -G on original files will change
# timestamps and cause rebuilds or the libraries / excessive
# relink
FILE(REMOVE_RECURSE dtrace_objects_merge)
MAKE_DIRECTORY(dtrace_objects_merge)
FOREACH(dir ${DIRS})
FILE(STRINGS ${dir}/dtrace_objects OBJS)
FOREACH(obj ${OBJS})
IF(obj)
EXECUTE_PROCESS(COMMAND cp ${obj} dtrace_objects_merge)
ENDIF()
ENDFOREACH()
ENDFOREACH()
FILE(GLOB_RECURSE OBJECTS dtrace_objects_merge/*.o)
CONVERT_TO_RELATIVE_PATHS("${OBJECTS}" REL_OBJECTS)
EXECUTE_PROCESS(
COMMAND ${DTRACE} ${DTRACE_FLAGS} -o ${OUTFILE} -G -s ${DFILE} ${REL_OBJECTS}
)
RETURN()
ENDIF()
FOREACH(dir ${DIRS})
FILE(GLOB_RECURSE OBJECTS ${dir}/*.o)
CONVERT_TO_RELATIVE_PATHS("${OBJECTS}" REL)
LIST(APPEND REL_OBJECTS ${REL})
ENDFOREACH()
FILE(WRITE dtrace_timestamp "")
EXECUTE_PROCESS(
COMMAND ${DTRACE} ${DTRACE_FLAGS} -o ${OUTFILE} -G -s ${DFILE} ${REL_OBJECTS}
)
# Save objects that contain dtrace probes in a file.
# This file is used when script is called with -DTYPE=MERGE
# to dtrace from static libs.
# To find objects with probes, look at the timestamp, it was updated
# by dtrace -G run
IF(TYPE MATCHES "STATIC")
FILE(WRITE dtrace_objects "")
FOREACH(obj ${REL_OBJECTS})
IF(${obj} IS_NEWER_THAN dtrace_timestamp)
GET_FILENAME_COMPONENT(obj_absolute_path ${obj} ABSOLUTE)
FILE(APPEND dtrace_objects "${obj_absolute_path}\n" )
ENDIF()
ENDFOREACH()
ENDIF()
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