Fix for PR java/5165:
* java/lang/natClassLoader.cc (_Jv_PrepareCompiledClass):
Convert any constant string field to a String; not just final
fields.
From-SVN: r48255
2001-12-20 Andrew Haley <aph@redhat.com>
* libjava.lang/FileHandleGcTest.out: New file.
* libjava.lang/FileHandleGcTest.java: New file.
* libjava.lang/Array_3.out: New file.
* libjava.lang/Array_3.java: New file.
From-SVN: r48201
* java/awt/FlowLayout.java (FlowLayout(), FlowLayout(int)): Set
gaps to 5.
(FlowLayout(int,int,int)): Use methods to set fields.
(getSize): Skip invisible components.
(layoutContainer): Skip invisible components.
From-SVN: r48182
* include/jvm.h (__GCJ_JNI_IMPL__): Define.
* include/config.h.in: Rebuilt.
* configure: Rebuilt.
* configure.in: Define JV_HAVE_INTTYPES_H if inttypes.h found.
Added comment for HAVE_DLOPEN to avoid autoheader error.
* gcj/libgcj-config.h.in (JV_HAVE_INTTYPES_H): Added.
* include/jni.h: Include <gcj/libgcj-config.h>. Don't include
CNI-specific headers if we are compiling ordinary JNI code with a
C++ compiler. Include <inttypes.h> and JNIWeakRef.h when
appropriate.
* jni.cc: Don't include JNIWeakRef.h.
From-SVN: r48082
* java/lang/natClassLoader.cc (_Jv_InitNewClassFields): New
function.
(_Jv_NewClass): Use it.
(defineClass0): Use it.
* prims.cc (_Jv_InitPrimClass): Adjust vtable here.
(_Jv_InitPrimClass): Use _Jv_InitNewClassFields.
(_Jv_NewArray): Don't abort; just throw exception.
Include InternalError.h.
* java/lang/Class.h (Class::Class): Declare, don't define.
(Class): Declare _Jv_InitNewClassFields as a friend.
(union _Jv_Self): Removed.
From-SVN: r48081
gcc/java:
* java-tree.h (otable_methods, otable_decl, otable_syms_decl,
otable_type, otable_ptr_type, method_symbol_type,
method_symbols_array_type, method_symbols_array_ptr_type): New
field/global tree definitions.
(flag_indirect_dispatch): New flag.
* decl.c (java_init_decl_processing): Initialize new otable and
otable_syms type nodes and decls. Add new field "index" to
method_type_node.
* class.c (build_method_symbols_entry): New function.
(make_method_value): Set "index" to to method's vtable index for
virtual methods when indirect-dispatch is not used.
(make_class_data): For indirect-dispatch, dont emit the dtable_decl,
and set vtable_method_count to -1. Set otable and otable_syms field
if indirect-dispatch is used and there was something to put in them.
(build_method_symbols_entry): New function.
(emit_offset_symbol_table): New function.
* expr.c (get_offset_table_index): New function.
(build_invokevirtual): Build array reference to otable at the index
returned by get_offset_table_index, and use the result as the vtable
offset.
(build_invokeinterface): Similar.
* jcf-parse.c (yyparse): If indirect-dispatch, call
emit_offset_symbol_table at the end of compilation, after all classes
have been generated.
* jvspec.c: Don't pass findirect-dispatch to jvgenmain.
* lang.c (flag_indirect_dispatch): Define.
(lang_f_options): Add indirect-dispatch flag.
libjava:
* include/jvm.h (_Jv_VTable::idx_to_offset): New method.
* java/lang/natClassLoader.cc (_Jv_PrepareCompiledClass): Call
_Jv_MakeVTable and _Jv_LinkOffsetTable if needed.
* java/lang/Class.h (_Jv_Method): Add "index" field.
(_Jv_MethodSymbol): New struct type.
(_Jv_LinkOffsetTable, _Jv_LayoutVTableMethods, _Jv_SetVTableEntries,
_Jv_MakeVTable): Friends.
(otable, otable_syms): New Class fields.
* java/lang/natClass.cc (_Jv_LinkOffsetTable): New function.
(isVirtualMethod): New static function.
(_Jv_LayoutVTableMethods): New function.
(_Jv_SetVTableEntries): New function.
(_Jv_MakeVTable): New function.
From-SVN: r48038
2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz>
* java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of
the bitset.
(andNot): Likewise.
(xor): Likewise.
2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz>
* java/util/LinkedList.java (LinkedListItr.add): Don't skip the next
entry.
2001-12-15 Eric Blake <ebb9@email.byu.edu>
* java/util/TreeMap.java (removeNode): Fix bug in node removal.
2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz>
* java/util/AbstractCollection.java (containsAll): Use size of the
correct collection for loop bound.
* java/util/AbstractList.java (iterator.next): Increment pos after
calling get on backing list.
(listIterator.next): Likewise.
* java/util/LinkedList.java (addLastEntry): Don't increment size before
checking for size == 0.
(addFirstEntry): Rearrange to match addLastEntry.
(add): Do not increment size before inserting the new entry.
* java/util/AbstractCollection.java (addAll): Use size of the
correct collection for loop bound.
2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz>
* java/util/AbstractSet.java (removeAll): Fix scoping thinko.
* java/util/HashMap.java (putAllInternal): Set size here.
* java/util/Hashtable.java (putAllInternal): New method. Copy contents
of a map efficiently without calling put() or putAll().
(Hashtable (map)): Use putAllInternal.
(clone): Likewise.
2001-12-15 Eric Blake <ebb9@email.byu.edu>
* java/util/Collections.java:
* java/util/Vector.java:
* java/util/WeakHashMap.java: Fix spelling errors.
2001-12-15 Eric Blake <ebb9@email.byu.edu>
* java/util/AbstractCollection.java (removeAllInternal),
(retainAllInternal): Add hooks for use by ArrayList.
* java/util/AbstractList.java: Minor code updates. Fix some
scoping.
* java/util/AbstractMap.java: ditto
* java/util/ArrayList.java (readObject, writeObject): ditto
(removeAllInternal, retainAllInternal): Optimize.
* java/util/Arrays.java: ditto
* java/util/Collections.java: ditto. Change order of parameters
to equals(Object, Object) to match specs.
* java/util/Dictionary.java: Improve javadoc.
(Dictionary): Add explicit constructor.
* java/util/HashMap.java: Improve javadoc. Rearrange methods to
follow order in JDK. Cleanups related to recent code migration to
AbstractMap. Fix some scoping.
(entrySet): Cache the result.
(modCount): Ensure that this is updated correctly.
* java/util/HashSet.java: Improve javadoc. Fix some scoping.
(init): Add hooks for LinkedHashSet.
(map): Use "" instead of Boolean.TRUE in backing map. Use
package-private API where possible for less overhead.
(readObject, writeObject): Fix serialization.
* java/util/Hashtable.java: Improve javadoc. Fix some scoping.
(entrySet, keySet, values): Cache the result.
(modCount): Ensure that this is updated correctly.
(contains, remove): Fix NullPointer checking to match specs.
(class Enumeration): Make more like HashIterator.
* java/util/IdentityHashMap.java: Minor code updates.
(modCount): Ensure that this is updated correctly.
(readObject, writeObject): Fix serialization.
* java/util/LinkedHashMap.java: Minor code updates. Cleanups
related to recent code migration to AbstractMap.
* java/util/LinkedHashSet.java: New file.
* java/util/LinkedList.java:
(readObject, writeObject): Fix serialization.
* java/util/Makefile.am: List recently added files.
* java/util/Stack.java: Minor code updates.
* java/util/TreeMap.java: Improve javadoc. Overhaul the class to
be more efficient. Fix some scoping. Rearrange the methods.
(nil): Ensure that this can be thread-safe, and make it a static
final. Initialize it to be more useful as a sentinal node.
(Node): Specify color in constructor.
(deleteFixup, insertFixup): Improve comments and algorithm.
(fabricateTree): Redesign with less overhead.
(lowestGreaterThan): Add parameter first to make SubMap easier.
(removeNode): Patch hole where nil was being modified. Choose
predecessor instead of successor so in-place swap works.
(class VerifyResult, verifyTree, verifySub, verifyError): Remove
this dead code after verifying the class works.
(class SubMap): Rewrite several algorithms to avoid problems with
comparing nil.
* java/util/TreeSet.java: Improve javadoc. Fix some scoping.
(clone): Fix ClassCastException when cloning subSet().
(readObject, writeObject): Fix serialization.
* java/util/WeakHashMap.java: Improve javadoc. Fix some scoping.
(NULL_KEY): Make it compare as null, for ease elsewhere.
(Class WeakEntry): Rename from Entry, to avoid shadowing
Map.Entry. Add missing toString.
(modCount): Ensure that this is updated correctly.
(clear, containsValue, keySet, putAll, values, WeakHashMap(Map)):
Add missing methods and constructor.
2001-12-15 Eric Blake <ebb9@email.byu.edu>
* java/util/ArrayList.java (checkBoundExclusive),
(checkBoundInclusive): Rename from range??clusive, to match
AbstractList.
* java/util/LinkedList.java (checkBoundsExclusive),
(checkBoundsInclusive): ditto
* java/util/Vector.java (checkBoundExclusive),
(checkBoundInclusive): Move bounds checking into common methods.
2001-12-15 Eric Blake <ebb9@email.byu.edu>
* java/util/AbstractList.java:
(modCount): Make sure it is updated in all needed places.
* java/util/ArrayList.java: Improve javadoc. Implements
RandomAccess. Add serialVersionUID. Reorder methods.
(modCount): Make sure it is updated in all needed places.
(rangeExclusive, rangeInclusive): Add common methods for bounds
check.
(isEmpty): Add missing method.
* java/util/Collections.java: (class SynchronizedList): Make
package visible.
* java/util/ConcurrentModificationException.java: Improve
javadoc.
* java/util/EmptyStackException.java: Improve javadoc.
* java/util/LinkedList.java: Improve javadoc.
(modCount): Make sure it is updated in all needed places.
(rangeExclusive, rangeInclusive): Add common methods for bounds
check.
* java/util/NoSuchElementException.java: Improve javadoc.
* java/util/Stack.java: Improve javadoc. Fix synchronization
issues.
(modCount): Make sure it is updated in all needed places.
* java/util/Vector.java: Improve javadoc. Fix synchronization
issues. Implements RandomAccess. Reorder methods.
(modCount): Make sure it is updated in all needed places.
(setSize): Fix according to specifications: this does not dictate
the backing array size.
(removeAll, retainAll): Faster implementations.
2001-12-15 Eric Blake <ebb9@email.byu.edu>
* java/util/BitSet.java: Improve javadoc.
(cardinality(), clear(), clear(int, int), flip(int)),
(flip(int, int), get(int, int), intersects(BitSet), isEmpty()),
(nextClearBit(int), nextSetBit(int), set(int, boolean)),
(set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods.
(clone): Fix so subclasses clone correctly.
2001-12-15 Eric Blake <ebb9@email.byu.edu>
* java/util/AbstractCollection.java: Improve javadoc.
(AbstractCollection()): Make constructor protected.
(equals(Object, Object), hashCode(Object)): Add utility methods.
* java/util/AbstractList.java: Improve javadoc.
(AbstractList()): Make constructor protected.
(indexOf(Object)): Call listIterator(), not listIterator(int).
(iterator()): Follow Sun's requirement to not use listIterator(0).
(listIterator(int)): Make AbstractListItr anonymous.
(subList(int, int)): Add support for RandomAccess.
(SubList.add(int, Object), SubList.remove(Object)): Fix bug with
modCount tracking.
(SubList.addAll(Collection)): Add missing method.
(SubList.listIterator(int)): Fix bugs in indexing, modCount
tracking.
(class RandomAccessSubList): Add new class.
* java/util/AbstractMap.java: Improve javadoc.
(keys, values, KEYS, VALUES, ENTRIES): Consolidate common map
fields.
(AbstractMap()): Make constructor protected.
(equals(Object, Object), hashCode(Object)): Add utility methods.
(equals(Object)): Change algorithm to
entrySet().equals(m.entrySet()), as documented by Sun.
(keySet(), values()): Cache the collections.
* java/util/AbstractSequentialList.java: Improve javadoc.
(AbstractSequentialList()): Make constructor protected.
* java/util/AbstractSet.java: Improve javadoc.
(AbstractSet()): Make constructor protected.
(removeAll(Collection)): Add missing method.
* java/util/Arrays.java: Improve javadoc, rearrange method orders.
(defaultComparator): Remove, in favor of
Collections.compare(Object, Object, Comparator).
(binarySearch, equals, sort): Fix natural order comparison of
floats and doubles. Also improve Object comparison - when
comparator is null, use natural order.
(fill, sort): Add missing checks for IllegalArgumentException.
(sort, qsort): Fix sorting bugs, rework the code for more
legibility.
(mergeSort): Inline into sort(Object[], int, int, Comparator).
(class ArrayList): Rename from ListImpl, and make compatible with
JDK serialization. Add methods which more efficiently override
those of AbstractList.
* java/util/Collections: Improve javadoc.
(isSequential(List)): Add and use a method for deciding between
RandomAccess and sequential algorithms on lists.
(class Empty*, class Synchronized*, class Unmodifiable*): Make
compliant with JDK serializability.
(class Singleton*, class CopiesList, class RevereseComparator),
(class UnmodifiableMap.UnmodifiableEntrySet),
(class *RandomAccessList): New classes for serial compatibility.
(class Empty*, class Singleton*, class CopiesList): Add methods
which more efficiently override those of Abstract*.
(search): Inline into binarySearch(List, Object, Comparator).
(binarySearch): Make sequential search only do log(n) comparisons,
instead of n.
(copy(List, List)): Do bounds checking before starting.
(indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate),
(swap): Add new JDK 1.4 methods.
(binarySearch, max, min, sort): Allow null comparator to represent
natural ordering.
(reverse(List)): Avoid unnecessary swap.
(shuffle(List, Random)): Do shuffle in-place for RandomAccess
lists.
(SingletonList.get): Fix logic bug.
(SingletonMap.entrySet): Make the entry immutable, and cache the
returned set.
(SynchronizedCollection, SynchronizedMap, UnmodifiableCollection),
(UnmodifiableMap): Detect null pointer in construction.
(SynchronizedMap, UnmodifiableMap): Cache collection views.
* java/util/BasicMapEntry: Improve javadoc.
From-SVN: r48035
* libjava.jni/cxxtest.out: New file.
* libjava.jni/cxxtest.cc: New file.
* libjava.jni/cxxtest.java: New file.
* libjava.jni/jni.exp (gcj_jni_test_one): If there is no .c file,
assume there is a .cc file.
From-SVN: r48012
* libjava/prims.cc: Some old cleanups. The collector now
handles test for out of memory.
* libjava/prims.cc, libjava/gcj/javaprims.h:
(_Jv_AllocObjectNoInitNoFinalizer, _Jv_AllocObjectNoFinalizer):
New functions for finalizer-free allocation.
(jvmpi_notify_alloc): Became separate function.
* libjava/java/lang/Object.h, libjava/include/jvm.h: Adjust for
revised vtable layout on IA64. With TARGET_VTABLE_USES_DESCRIPTORS,
there is only one extra descriptor.
From-SVN: r48002
* resolve.cc (_Jv_PrepareClass): Verify method here...
* defineclass.cc (handleMethodsEnd): ... not here.
* verify.cc (_Jv_BytecodeVerifier::initialize_stack): New method.
(_Jv_BytecodeVerifier::verify_instructions_0) [op_return]: Ensure
there are no uninitialized objects.
(_Jv_BytecodeVerifier::state::this_type): New field.
(_Jv_BytecodeVerifier::state::state): Initialize this_type.
(_Jv_BytecodeVerifier::state::copy): Copy this_type.
(_Jv_BytecodeVerifier::state::merge): Merge this_type.
(_Jv_BytecodeVerifier::state::check_no_uninitialized_objects):
Handle this_type.
(_Jv_BytecodeVerifier::state::check_this_initialized): New
method.
(_Jv_BytecodeVerifier::state::set_initialized): Handle this_type.
(_Jv_BytecodeVerifier::state::set_this_type): New method.
(_Jv_BytecodeVerifier::verify_instructions_0) [op_putfield]: Allow
assignment to fields of `this' before another initializer is run.
From-SVN: r47826
* Makefile.in: Rebuilt.
* Makefile.am (java/lang/reflect/Method.h): ObjectInputStream now
a friend.
* java/lang/natClass.cc (getSignature): Only look at elements of
non-null parameters.
(getPrivateMethod): Removed old FIXME comment.
* java/io/natObjectInputStream.cc (allocateObject): Removed old
FIXME comment.
(callConstructor): Simply use `NULL' for value of parameters.
(ObjectClass): Removed.
(ClassClass): Likewise.
* java/io/ObjectInputStream.java (readObject): Fixed typo.
From-SVN: r47800
* verify.cc (_Jv_BytecodeVerifier::type_val): Added
unused_by_subroutine_type.
(_Jv_BytecodeVerifier::type::merge): Handle
unused_by_subroutine_type.
(_Jv_BytecodeVerifier::state::state): Added `ret_semantics'
argument.
(_Jv_BytecodeVerifier::state::copy): Likewise.
(_Jv_BytecodeVerifier::push_jump_merge): Pass `ret_semantics' to
state constructor.
(_Jv_BytecodeVerifier::state::is_unmerged_ret_state): New method.
(_Jv_BytecodeVerifier::pop_jump): Don't accept a jump which is
from an unmerged ret.
(_Jv_BytecodeVerifier::verify_instructions_0): Don't let an
unmerged ret state skip verification in the fall-through case.
(debug_print): New function.
(_Jv_BytecodeVerifier::type::print): New method.
(_Jv_BytecodeVerifier::state::print): New method.
(_Jv_BytecodeVerifier::push_jump_merge): Print state.
(_Jv_BytecodeVerifier::verify_instructions_0): Likewise.
(_Jv_BytecodeVerifier::get_variable): Don't call note_variable.
(_Jv_BytecodeVerifier::_Jv_BytecodeVerifier): Print debug
information.
From-SVN: r47734
* verify.cc (_Jv_BytecodeVerifier::linked_utf8): New structure.
(_Jv_BytecodeVerifier::utf8_list): New field.
(_Jv_BytecodeVerifier::_Jv_BytecodeVerifier): Initialize it.
(_Jv_BytecodeVerifier::~_Jv_BytecodeVerifier): Free it.
(_Jv_BytecodeVerifier::make_utf8_const): New method.
(_Jv_BytecodeVerifier::get_one_type): Use it.
(_Jv_BytecodeVerifier::type::merge): When using local semantics,
if the destination type is already unsuitable then we didn't
change.
From-SVN: r47634
* defineclass.cc (read_one_method_attribute): `end_pc' for an
exception can be equal to code length.
* verify.cc (_Jv_BytecodeVerifier::verify_instructions_0): Removed
`start_PC' from error invocation where it didn't make sense, and
updated error message. Use `copy' to copy a state. Only try to
merge current state with saved state when we've fallen through
from the previous instruction.
(_Jv_BytecodeVerifier::pop_ref_or_return): New method.
(_Jv_BytecodeVerifier::verify_instructions_0) [op_astore_0]: Use
pop_ref_or_return.
(_Jv_BytecodeVerifier::verify_instructions_0) [op_astore]:
Likewise.
(_Jv_BytecodeVerifier::push_jump_merge): Pass max_locals, not
max_stack, to merge.
(_Jv_BytecodeVerifier::verify_instructions_0): Likewise.
(_Jv_BytecodeVerifier::push_jump_merge): Merge from new state into
state at branch target, not vice versa.
(_Jv_BytecodeVerifier::branch_prepass): Allow end of exception to
be equal to code length. Removed redundant test to see if
exception start is after exception end.
(_Jv_BytecodeVerifier::verify_instructions_0): Type of argument to
`finally' is Throwable.
From-SVN: r47623
* Makefile.am (nat_headers, x_nat_headers): Depend on .class files, not
libgcj.jar.
(nat_files, x_nat_files): Build native files in subdirectories using
the same dependency options as the java files.
(gnu/gcj/runtime/FirstThread.h): Remove explicit rule and friend
declarations.
* configure.in: Put dependencies for .cc files in deps.mak.
* Makefile.in: Rebuilt.
* configure: Rebuilt.
From-SVN: r47471
* verify.cc (_Jv_BytecodeVerifier::branch_prepass): Use
java_opcode as type for switch.
[op_wide]: Likewise.
(_Jv_BytecodeVerifier::verify_instructions_0): Likewise.
[op_invokevirtual]: Likewise.
* include/java-insns.h (java_opcode): Give enum a name.
From-SVN: r47330
* verify.cc (_Jv_BytecodeVerifier::branch_prepass) [op_iinc]:
Uses two operand bytes, not one.
[op_arraylength]: Has no operands in bytecode.
(_Jv_BytecodeVerifier::push_jump): Fixed call to
check_no_uninitialized_objects.
(_Jv_BytecodeVerifier::push_exception_jump): Likewise.
(_Jv_BytecodeVerifier::handle_ret_insn): Likewise.
(_Jv_BytecodeVerifier::handle_jsr_insn): Likewise.
From-SVN: r47202
* verify.cc (_Jv_BytecodeVerifier::require_array_type): Special
case for boolean arrays.
* verify.cc (_Jv_BytecodeVerifier::compute_jump): Put PC into
error message.
From-SVN: r47190
* verify.cc: Include StringBuffer.h.
(verify_fail): Added pc argument. Use StringBuffer to construct
exception message.
(_Jv_BytecodeVerifier::verify_instructions_0): Put PC into error
message.
(_Jv_BytecodeVerifier::check_return_type): Likewise.
(_Jv_BytecodeVerifier::handle_field_or_method): Likewise.
(_Jv_BytecodeVerifier::check_constant): Likewise.
(_Jv_BytecodeVerifier::check_class_constant): Likewise.
(_Jv_BytecodeVerifier::check_pool_index): Likewise.
(_Jv_BytecodeVerifier::get_variable): Likewise.
(_Jv_BytecodeVerifier::branch_prepass): Likewise. Also, correctly
check exception handler endpoint.
(_Jv_BytecodeVerifier::verify_instructions_0): Correctly handle
wide arguments to current method.
(_Jv_BytecodeVerifier::check_wide_constant): New method.
(_Jv_BytecodeVerifier::verify_instructions_0) [op_ldc2_w]: Use
it.
From-SVN: r47155
* verify.cc (_Jv_BytecodeVerifier::is_assignable_from_slow): New
method.
(type::compatible): Use it.
(type::merge): Likewise.
(type::promote): Return a `type&'.
(get_one_type): Promote return value.
From-SVN: r47097
* java/lang/Integer.java (getInteger): Attempt to decode the value
of the system property instead of the name of the system property.
(parseInt): Throw NumberFormatException explicitly in the case of
a null argument in keeping with JDK 1.3.
From-SVN: r47095
* java/util/Timer.java (TaskQueue.isStopped): Remove method.
(Scheduler.run): Try to re-schedule task and ignore exception if
queue has been stopped.
From-SVN: r47093
* java/lang/reflect/Modifier.java: Reindented.
(toString): Only trim trailing space if text was added to
StringBuffer.
* java/lang/reflect/ReflectPermission: Reindented.
From-SVN: r47028
* java/lang/Double.java (parseDouble): Fixed ordering of
modifiers.
* java/lang/reflect/AccessibleObject.java: Javadoc, reindented.
* java/lang/reflect/Member.java: Reindented.
* java/lang/reflect/Modifier.java: Reindented.
(toString): Only trim trailing space if text was added to
StringBuffer.
* java/util/ConcurrentModificationException.java: Javadoc
updates.
* java/util/EmptyStackException.java: Likewise.
* java/util/NoSuchElementException.java: Likewise.
From-SVN: r47018
Fix for PR libgcj/4859:
* java/util/Timer.java (TaskQueue.isStopped): New method.
(Scheduler.run): Don't re-schedule task if queue has been
stopped.
From-SVN: r46994
2001-11-02 Hans Boehm <Hans_Boehm@hp.com>
* java/util/natResourceBundle.cc:getClassContext: return
array of Class instead of array of ClassLoader.
From-SVN: r46727
* configure.in (case $THREADS): Add *-*-freebsd* configuration.
(HAVE_GETHOSTBYADDR_R): Create a valid, non-optimal
configuration when gethostbyaddr_r exists yet no prototype
exists in netdb.h.
* configure: Rebuilt.
* posix-threads.cc (INTR): Reuse path for LINUX_THREADS
with FREEBSD_THREADS. However, comment different reason.
From-SVN: r46476
