-# Find the libunwind library
-#
-# LIBUNWIND_FOUND - True if libunwind was found.
-# LIBUNWIND_LIBRARIES - The libraries needed to use libunwind
-# LIBUNWIND_INCLUDE_DIR - Location of unwind.h and libunwind.h
-
-# This file was downloaded from https://github.com/cmccabe/lksmith/blob/master/cmake_modules/FindLibunwind.cmake
-# Copyright (c) 2011-2012, the Locksmith authors.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# Modified by the SimGrid team for:
-# - Survive the fact that libunwind cannot be found (setting LIBUNWIND_FOUND correctly)
-# - Also search for the unwind-ptrace component (but survive when it's not here)
-
-set(LIBUNWIND_FOUND "1")
+if(SIMGRID_PROCESSOR_x86_64)
+ find_library(PATH_LIBUNWIND_LIB
+ NAMES unwind-x86_64
+ HINTS
+ $ENV{SIMGRID_LIBUNWIND_LIBRARY_PATH}
+ $ENV{LD_LIBRARY_PATH}
+ $ENV{LIBUNWIND_LIBRARY_PATH}
+ PATH_SUFFIXES lib/ GnuWin32/lib lib/system
+ PATHS
+ /opt
+ /opt/local
+ /opt/csw
+ /sw
+ /usr)
+endif()
-FIND_PATH(LIBUNWIND_INCLUDE_DIR libunwind.h)
-if(NOT LIBUNWIND_INCLUDE_DIR)
- message(WARNING "failed to find libunwind.h")
- set(LIBUNWIND_FOUND "")
-elseif(NOT EXISTS "${LIBUNWIND_INCLUDE_DIR}/unwind.h")
- message(WARNING "libunwind.h was found, but unwind.h was not found in that directory.")
- set(LIBUNWIND_FOUND "")
- SET(LIBUNWIND_INCLUDE_DIR "")
+if(NOT PATH_LIBUNWIND_LIB)
+ find_library(PATH_LIBUNWIND_LIB
+ NAMES unwind
+ HINTS
+ $ENV{SIMGRID_LIBUNWIND_LIBRARY_PATH}
+ $ENV{LD_LIBRARY_PATH}
+ $ENV{LIBUNWIND_LIBRARY_PATH}
+ PATH_SUFFIXES lib/ GnuWin32/lib lib/system
+ PATHS
+ /opt
+ /opt/local
+ /opt/csw
+ /sw
+ /usr
+ /usr/lib/)
endif()
-FIND_LIBRARY(LIBUNWIND_GENERIC_LIBRARY "unwind")
-if (LIBUNWIND_GENERIC_LIBRARY)
- MESSAGE(STATUS "Found libunwind library: ${LIBUNWIND_GENERIC_LIBRARY}")
-else()
- set(LIBUNWIND_FOUND "")
- MESSAGE(WARNING "failed to find unwind generic library")
-endif ()
-SET(LIBUNWIND_LIBRARIES ${LIBUNWIND_GENERIC_LIBRARY})
-unset(LIBUNWIND_GENERIC_LIBRARY)
+find_path(PATH_LIBUNWIND_H "libunwind.h"
+ HINTS
+ $ENV{SIMGRID_LIBUNWIND_LIBRARY_PATH}
+ $ENV{LD_LIBRARY_PATH}
+ $ENV{LIBUNWIND_LIBRARY_PATH}
+ PATH_SUFFIXES include/ GnuWin32/include
+ PATHS
+ /opt
+ /opt/local
+ /opt/csw
+ /sw
+ /usr)
-FIND_LIBRARY(LIBUNWIND_PTRACE_LIBRARY "unwind-ptrace")
-if (LIBUNWIND_PTRACE_LIBRARY)
- MESSAGE(STATUS "Found libunwind-ptrace library: ${LIBUNWIND_PTRACE_LIBRARY}")
- SET(LIBUNWIND_LIBRARIES ${LIBUNWIND_LIBRARIES} ${LIBUNWIND_PTRACE_LIBRARY})
+if(PATH_LIBUNWIND_H)
+ string(REGEX REPLACE "/libunwind.h" "" PATH_LIBUNWIND_H "${PATH_LIBUNWIND_H}")
+ message(STATUS "Looking for libunwind.h - found in ${PATH_LIBUNWIND_H}")
+ include_directories(${PATH_LIBUNWIND_H})
else()
- MESSAGE(WARNING "Failed to find unwind-ptrace library. Proceeding anyway.")
-endif ()
-unset(LIBUNWIND_PTRACE_LIBRARY)
-
-# For some reason, we have to link to two libunwind shared object files:
-# one arch-specific and one not.
-if (CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
- SET(LIBUNWIND_ARCH "arm")
-elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "amd64")
- SET(LIBUNWIND_ARCH "x86_64")
-elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$")
- SET(LIBUNWIND_ARCH "x86")
+ message(STATUS "Looking for libunwind.h - not found")
endif()
-if (LIBUNWIND_FOUND AND LIBUNWIND_ARCH)
- FIND_LIBRARY(LIBUNWIND_SPECIFIC_LIBRARY "unwind-${LIBUNWIND_ARCH}")
- if (LIBUNWIND_SPECIFIC_LIBRARY)
- MESSAGE(STATUS "Found libunwind-${LIBUNWIND_ARCH} library: ${LIBUNWIND_SPECIFIC_LIBRARY}")
- else()
- MESSAGE(FATAL_ERROR "failed to find unwind-${LIBUNWIND_ARCH}")
- set(LIBUNWIND_FOUND "")
- endif ()
- SET(LIBUNWIND_LIBRARIES ${LIBUNWIND_LIBRARIES} ${LIBUNWIND_SPECIFIC_LIBRARY})
- unset(LIBUNWIND_SPECIFIC_LIBRARY)
+if(PATH_LIBUNWIND_LIB)
+ string(REGEX REPLACE "/libunwind.*[.]${LIB_EXE}$" "" PATH_LIBUNWIND_LIB "${PATH_LIBUNWIND_LIB}")
+ message(STATUS "Looking for libunwind.${LIB_EXE} - found in ${PATH_LIBUNWIND_LIB}")
+ link_directories(${PATH_LIBUNWIND_LIB})
+else()
+ message(STATUS "Looking for libunwind - not found")
endif()
-if (LIBUNWIND_FOUND)
- MESSAGE(STATUS "Found all required libunwind components.")
+if(PATH_LIBUNWIND_LIB AND PATH_LIBUNWIND_H)
+ SET(HAVE_LIBUNWIND 1)
+else()
+ SET(HAVE_LIBUNWIND 0)
endif()
-MARK_AS_ADVANCED(LIBUNWIND_LIBRARIES LIBUNWIND_INCLUDE_DIR)
+mark_as_advanced(PATH_LIBDW_H)
+mark_as_advanced(PATH_LIBDW_LIB)
+mark_as_advanced(PATH_LIBUNWIND_LIB)
+mark_as_advanced(PATH_LIBUNWIND_H)
