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# Tests for JNI code.

# Compile a single C file and produce a .so file.  OPTIONS is a list
# of options to pass to the compiler.  Returns 0 on failure, 1 on
# success.
proc gcj_jni_compile_c_to_so {file {options {}}} {
  global srcdir subdir
  global host_triplet
  verbose "options: $options"
  set options_cxx $options
  set options ""

# Apple uses a different extension for shared/dynamic libraries
# so we check against powerpc-apple-darwin and set them to
# dylib.
# HP-UX uses sl, so we check this too, otherwise we take so.

  if { [istarget "*-*-darwin*"] } {
      set so_extension "dylib"
      set so_flag "-dynamiclib"
  } elseif { [istarget "hppa*-hp-hpux*"] } {
      set so_extension "sl"
      set so_flag "-shared"
  } elseif { [istarget "*-*-cygwin*"] || [istarget "*-*-mingw*"] } {
      set so_extension "dll"
      set so_flag "-shared"
  } else {
      set so_extension "so"
      set so_flag "-shared"
  }
  set filename [file tail $file]
  set name [file rootname $filename]
  set soname lib${name}.${so_extension}

  if { [istarget "*arm-*eabi*"] } {
      lappend options "additional_flags=-fexceptions"
  }

  lappend options "additional_flags=${so_flag} -fPIC"
  # Find the generated header.
  lappend options "additional_flags=-I. -I.. -I$srcdir/$subdir -fdollars-in-identifiers"

  # Ensure that the generated header has correct prototypes.
  set cfile [file rootname $file].c
  if { [file exists $cfile]} {
    # This option is only valid for C sources.
    lappend options "additional_flags=-Wmissing-prototypes"
  }

  # Find jni.h and jni_md.h.
  lappend options "additional_flags=-I$srcdir/../include -I$srcdir/../classpath/include"

  # Append C++ options
  lappend options "additional_flags=$options_cxx"

  set x [libjava_prune_warnings \
           [target_compile $file $soname executable $options]]
  if {$x != ""} {
    verbose "target_compile failed: $x" 2
    fail "$filename compilation"
    return 0
  }

  pass "$filename compilation"
  return 1
}

# Build a header file from a .class file.  Return 0 on failure.
proc gcj_jni_build_header {file} {
  global libgcj_jar

  set gcjh [find_gcjh]
  set file [file rootname $file]

  set cmd "$gcjh -jni -force -classpath .:$libgcj_jar $file"
  verbose $cmd

  set x [string trim [libjava_prune_warnings \
                        [lindex [local_exec $cmd "" "" 300] 1]]]
  if {$x != ""} {
    verbose "local_exec failed: $x" 2
    fail "$file header generation"
    return 0
  }

  pass "$file header generation"
  return 1
}

# Do all the work for a single JNI test.  Return 0 on failure.
proc gcj_jni_test_one {file} {
  global runtests
  global host_triplet
  global INTERPRETER

# Apple uses a different extension for shared/dynamic libraries
# so we check against powerpc-apple-darwin and set them to
# dylib.
# HP-UX uses sl, so we check this too, otherwise we take so.

  if { [istarget "*-*-darwin*"] } {
      set so_extension "dylib"
  } elseif { [istarget "hppa*-hp-hpux*"] } {
      set so_extension "sl"
  } elseif { [istarget "*-*-cygwin*"] || [istarget "*-*-mingw*"] } {
      set so_extension "dll"
  } else {
      set so_extension "so"
  }

  # The base name.  We use it for several purposes.
  set main [file rootname [file tail $file]]
  if {! [runtest_file_p $runtests $main]
      || $main == "pr29812" || $main == "pr29812_injar"} {
    # Simply skip it.
    return 1
  }

#   if {! [bytecompile_file $file [pwd]]} {
#     fail "bytecompile $file"
#     # FIXME - should use `untested' on all remaining tests.
#     # But that is hard.
#     return 0
#   }
#   pass "bytecompile $file"

#   set bytefile [file rootname [file tail $file]].class
#   if {! [gcj_jni_build_header $bytefile]} {
#     # FIXME
#     return 0
#   }

  set cfile [file rootname $file].c
  set cxxflags ""
  set cxxldlibflags {}
  # If there is no `.c' file, assume there is a `.cc' file.
  if {! [file exists $cfile]} {
    set cfile [file rootname $file].cc

    set cxxflaglist {}
    foreach arg [split [libjava_find_lib libstdc++-v3/src stdc++] " "] {
      switch -glob -- $arg {
        "-L*" {
          set arg [string range $arg 2 end]
          lappend cxxldlibflags $arg
          # Strip the `.libs' directory; we link with libtool which
          # doesn't need it.
          set arg "-L[file dirname $arg]"
        }
      }
      lappend cxxflaglist $arg
      # In case the libstdc++ is not installed yet, we pass the build
      # directory of it to the cxxflaglist.
      lappend cxxflaglist "-L$cxxldlibflags"
    }

    # If you're building the compiler with --prefix set to a place
    # where it's not yet installed, then the linker won't be able to
    # find the libgcc used by libffi.dylib.  We could pass the
    # -dylib_file option, but that's complicated, and it's much easier
    # to just make the linker find libgcc using -L options.
    if { [istarget "*-*-darwin*"] } {
        lappend cxxflaglist "-shared-libgcc -lstdc++"
    } else {
        lappend cxxflaglist "-lstdc++"
    }

    # ARM C++ emits an ABI warning for varargs.
    if { [istarget "arm*"] } {
        lappend cxxflaglist "-Wno-abi"
    }
    
    set cxxflags [join $cxxflaglist]
  }

  if {! [gcj_jni_compile_c_to_so $cfile $cxxflags]} {
    # FIXME
    return 0
  }

  set args [list "additional_flags=-fjni"]
  if {! [gcj_link $main $main $file $args]} {
    # FIXME
    return 0
  }

  set resultfile [file rootname $file].out

  if {! [gcj_invoke $main $resultfile $cxxldlibflags]} {
    # FIXME
    return 0
  }

  # We purposely ignore errors here; we still want to run the other
  # appropriate tests.
  set errname [file rootname [file tail $file]]
  set gij [libjava_find_gij]
  # libjava_find_gij will return "" if it couldn't find the
  # program; in this case we want to skip the test.
  # If the libraries are not installed yet, we have to pass them via
  # cxxldlibflags to libjava_invoke.
  if {$INTERPRETER == "yes" && $gij != ""} {
    libjava_invoke $errname "gij test" opts $gij \
      "" $resultfile $cxxldlibflags \
      -classpath $file $main
  }

  # When we succeed we remove all our clutter.
  eval gcj_cleanup [glob -nocomplain -- ${main}.*] \
    [list $main lib${main}.${so_extension}]

  return 1
}

# Compile a single C file and produce a binary.  OPTIONS is a list of
# options to pass to the compiler.  Returns 0 on failure, 1 on
# success.
proc gcj_jni_invocation_compile_c_to_binary {file {options {}}} {
  global srcdir subdir
  global host_triplet
  verbose "options: $options"
  set options_cxx $options
  set options ""

  set filename [file tail $file]
  set name [file rootname $filename]

  # Set some darwin specific options
  if { [istarget "*-*-darwin*"] } {
      lappend options "additional_flags= -bind_at_load -multiply_defined suppress"
  }
  # Find the generated header.
  lappend options "additional_flags=-I. -I.. -I$srcdir/$subdir"

  # Find jni.h and jni_md.h.
  lappend options "additional_flags=-I$srcdir/../include -I$srcdir/../classpath/include -fdollars-in-identifiers"

  # Append C++ options
  lappend options "additional_flags=$options_cxx"

  set x [libjava_prune_warnings \
           [target_compile $file $name executable $options]]
  if {$x != ""} {
    verbose "target_compile failed: $x" 2
    fail "$filename compilation"
    return 0
  }

  pass "$filename compilation"
  return 1
}

proc gcj_jni_get_cxxflags_invocation {} {
  global libiconv
  global LIBJAVA
  if {$libiconv == ""} {
      set libiconv "-liconv"
  }
  if [info exists LIBJAVA] {
      set libjava $LIBJAVA;
  } else {
      set libjava [libjava_find_lib libjava gcj]
  }
  set cxxflags "$libjava -ljvm"

  # Darwin needs -liconv linked, otherwise we get some unresolved.
  # If you're building the compiler with --prefix set to a place
  # where it's not yet installed, then the linker won't be able to
  # find the libgcc used by libffi.dylib.  We could pass the
  # -dylib_file option, but that's complicated, and it's much easier
  # to just make the linker find libgcc using -L options.
  # Similar logic applies to libgcj.
  if { [istarget "*-*-darwin*"] } {
    eval lappend cxxflags "-shared-libgcc -lgcj $libiconv"
  }

  # Make sure libgcc unwinder is used on 64-bit Solaris 10+/x86 rather than
  # the libc one.
  if { [istarget "*-*-solaris*"] } {
    lappend cxxflags "-shared-libgcc"
  }

  # Tru64 UNIX needs -liconv linked explicitly since gcc does the linking.
  if { [istarget "alpha*-dec-osf*"] } {
    lappend cxxflags $libiconv
  }

  return $cxxflags
}

# Do all the work for a single invocation API test.  Return 0 on
# failure.
proc gcj_jni_invocation_test_one {file} {
  global env
  global runtests
  global host_triplet
  global INTERPRETER

  # The base name.  We use it for several purposes.
  set main [file rootname [file tail $file]]
  if {! [runtest_file_p $runtests $main]} {
    # Simply skip it.
    return 1
  }

#   if {! [bytecompile_file $file [pwd]]} {
#     fail "bytecompile $file"
#     # FIXME - should use `untested' on all remaining tests.
#     # But that is hard.
#     return 0
#   }
#   pass "bytecompile $file"

  set cfile [file rootname $file].c

  set cxxflags [gcj_jni_get_cxxflags_invocation]
  if {! [gcj_jni_invocation_compile_c_to_binary $cfile $cxxflags]} {
    # FIXME
    return 0
  }

  set resultfile [file rootname $file].out

  set env(CLASSPATH) $file
  verbose "CLASSPATH = $env(CLASSPATH)"
  if {! [gcj_invoke $main $resultfile ""]} {
    unset env(CLASSPATH)
    # FIXME
    return 0
  }
  unset env(CLASSPATH)

  # We purposely ignore errors here; we still want to run the other
  # appropriate tests.
  set errname [file rootname [file tail $file]]

  # When we succeed we remove all our clutter.
  eval gcj_cleanup [glob -nocomplain -- ${main}.*] \
    [list $main]

  return 1
}

proc gcj_jni_pr29812 {} {
  global srcdir subdir
  global INTERPRETER runtests

  # Set up a global we need.
  libjava_arguments

  set b ${srcdir}/${subdir}

  if {! [runtest_file_p $runtests pr29812]} {
    # Simply skip it.
    return 1
  }

  if {! [gcj_jni_compile_c_to_so $b/pr29812.c ""]} {
    return 0
  }
  if {! [gcj_jni_compile_c_to_so $b/pr29812_injar.c ""]} {
    return 0
  }

  set gij [libjava_find_gij]
  if {$INTERPRETER == "yes" && $gij != ""} {
    if {! [libjava_invoke pr29812 "gij test" opts $gij \
             "" $b/pr29812.out "" \
             -classpath $b/pr29812.jar pr29812 $b/pr29812_injar.jar]} {
      return 0
    }
  }

  # When we succeed we remove all our clutter.
  eval gcj_cleanup [glob -nocomplain -- *pr29812*]
}

# Run the JNI tests.
proc gcj_jni_run {} {
  global srcdir subdir
  global build_triplet host_triplet

  # For now we only test JNI on native builds.
  if {$build_triplet == $host_triplet} {
    catch { lsort [glob -nocomplain ${srcdir}/${subdir}/*.jar] } srcfiles

    foreach x $srcfiles {
      gcj_jni_test_one $x
    }

    # Run JNI invocation API tests
    catch { lsort [glob -nocomplain ${srcdir}/${subdir}/invocation/*.jar] } srcfiles

    foreach x $srcfiles {
      gcj_jni_invocation_test_one $x
    }

    gcj_jni_pr29812
  } else {
    verbose "JNI tests not run in cross-compilation environment"
  }
}

gcj_jni_run