2005-03-10 20:02:21 +01:00
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// stacktrace.cc - Functions for unwinding & inspecting the call stack.
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2006-05-15 23:08:34 +02:00
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/* Copyright (C) 2005, 2006 Free Software Foundation
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2005-03-10 20:02:21 +01:00
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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2006-06-29 16:57:39 +02:00
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#include <platform.h>
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2005-03-10 20:02:21 +01:00
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#include <jvm.h>
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#include <gcj/cni.h>
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#include <java-interp.h>
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#include <java-stack.h>
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#include <stdio.h>
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2006-08-10 11:56:03 +02:00
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#include <java/lang/Boolean.h>
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2005-03-10 20:02:21 +01:00
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#include <java/lang/Class.h>
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#include <java/lang/Long.h>
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2007-01-09 20:58:05 +01:00
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#include <java/lang/reflect/Method.h>
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2006-08-09 10:38:28 +02:00
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#include <java/security/AccessController.h>
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2005-03-10 20:02:21 +01:00
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#include <java/util/ArrayList.h>
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2007-01-09 20:58:05 +01:00
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#include <java/util/IdentityHashMap.h>
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2006-08-15 22:40:10 +02:00
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#include <gnu/classpath/jdwp/Jdwp.h>
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2007-01-09 20:58:05 +01:00
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#include <gnu/classpath/VMStackWalker.h>
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2005-03-10 20:02:21 +01:00
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#include <gnu/java/lang/MainThread.h>
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#include <gnu/gcj/runtime/NameFinder.h>
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2006-06-06 19:00:16 +02:00
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#include <gnu/gcj/runtime/StringBuffer.h>
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2005-03-10 20:02:21 +01:00
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#include <sysdep/backtrace.h>
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2005-05-26 01:24:07 +02:00
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#include <sysdep/descriptor.h>
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2005-03-10 20:02:21 +01:00
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using namespace java::lang;
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using namespace java::lang::reflect;
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using namespace java::util;
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using namespace gnu::gcj::runtime;
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2007-09-04 20:00:31 +02:00
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#ifdef __ARM_EABI_UNWINDER__
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#define _URC_NORMAL_STOP _URC_FAILURE
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#endif
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2005-03-10 20:02:21 +01:00
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// Maps ncode values to their containing native class.
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// NOTE: Currently this Map contradicts class GC for native classes. This map
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// (and the "new class stack") will need to use WeakReferences in order to
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// enable native class GC.
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2006-10-28 04:15:12 +02:00
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java::util::IdentityHashMap *_Jv_StackTrace::ncodeMap;
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2005-03-10 20:02:21 +01:00
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// Check the "class stack" for any classes initialized since we were last
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// called, and add them to ncodeMap.
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void
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_Jv_StackTrace::UpdateNCodeMap ()
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{
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// The Map should be large enough so that a typical Java app doesn't cause
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// it to rehash, without using too much memory. ~5000 entries should be
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// enough.
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if (ncodeMap == NULL)
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ncodeMap = new java::util::IdentityHashMap (5087);
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jclass klass;
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while ((klass = _Jv_PopClass ()))
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2006-10-28 04:15:12 +02:00
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{
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//printf ("got %s\n", klass->name->data);
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for (int i = 0; i < klass->method_count; i++)
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{
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_Jv_Method *method = &klass->methods[i];
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void *ncode = method->ncode;
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// Add non-abstract methods to ncodeMap.
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if (ncode)
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{
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ncode = UNWRAP_FUNCTION_DESCRIPTOR (ncode);
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ncodeMap->put ((java::lang::Object *) ncode, klass);
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}
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}
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}
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2005-03-10 20:02:21 +01:00
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}
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// Given a native frame, return the class which this code belongs
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// to. Returns NULL if this IP is not associated with a native Java class.
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// If NCODE is supplied, it will be set with the ip for the entry point of the
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// enclosing method.
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jclass
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_Jv_StackTrace::ClassForFrame (_Jv_StackFrame *frame)
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{
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JvAssert (frame->type == frame_native);
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jclass klass = NULL;
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// look it up in ncodeMap
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if (frame->start_ip)
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2006-10-28 04:15:12 +02:00
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{
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klass = (jclass) ncodeMap->get ((jobject) frame->start_ip);
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// Exclude interpreted classes
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if (klass != NULL && _Jv_IsInterpretedClass (klass))
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klass = NULL;
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}
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2005-03-10 20:02:21 +01:00
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return klass;
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}
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_Unwind_Reason_Code
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_Jv_StackTrace::UnwindTraceFn (struct _Unwind_Context *context, void *state_ptr)
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{
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_Jv_UnwindState *state = (_Jv_UnwindState *) state_ptr;
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jint pos = state->pos;
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// Check if the trace buffer needs to be extended.
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if (pos == state->length)
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{
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2005-08-22 01:35:46 +02:00
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int newLength = state->length * 2;
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2005-03-10 20:02:21 +01:00
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void *newFrames = _Jv_AllocBytes (newLength * sizeof(_Jv_StackFrame));
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memcpy (newFrames, state->frames, state->length * sizeof(_Jv_StackFrame));
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state->frames = (_Jv_StackFrame *) newFrames;
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state->length = newLength;
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}
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2005-12-01 00:58:16 +01:00
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void *func_addr = (void *) _Unwind_GetRegionStart (context);
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2005-03-10 20:02:21 +01:00
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// If we see the interpreter's main function, "pop" an entry off the
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// interpreter stack and use that instead, so that the trace goes through
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// the java code and not the interpreter itself. This assumes a 1:1
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// correspondance between call frames in the interpreted stack and occurances
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// of _Jv_InterpMethod::run() on the native stack.
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2005-03-16 19:18:59 +01:00
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#ifdef INTERPRETER
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2006-08-15 22:40:10 +02:00
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void *interp_run = NULL;
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if (::gnu::classpath::jdwp::Jdwp::isDebugging)
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interp_run = (void *) &_Jv_InterpMethod::run_debug;
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else
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interp_run = (void *) &_Jv_InterpMethod::run;
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2005-12-01 00:58:16 +01:00
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if (func_addr == UNWRAP_FUNCTION_DESCRIPTOR (interp_run))
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2005-03-10 20:02:21 +01:00
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{
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state->frames[pos].type = frame_interpreter;
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2007-01-29 23:05:56 +01:00
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_Jv_Frame *frame = static_cast<_Jv_Frame *> (state->interp_frame);
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state->frames[pos].interp.meth
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= static_cast<_Jv_InterpMethod *> (frame->self);
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2005-03-10 20:02:21 +01:00
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state->frames[pos].interp.pc = state->interp_frame->pc;
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2007-01-29 23:05:56 +01:00
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state->interp_frame = state->interp_frame->next_interp;
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2005-03-10 20:02:21 +01:00
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}
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2007-01-09 20:58:05 +01:00
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else
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// We handle proxies in the same way as interpreted classes
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if (_Jv_is_proxy (func_addr))
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{
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state->frames[pos].type = frame_proxy;
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state->frames[pos].proxyClass = state->interp_frame->proxyClass;
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state->frames[pos].proxyMethod = state->interp_frame->proxyMethod;
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2007-01-29 23:05:56 +01:00
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state->interp_frame = state->interp_frame->next_interp;
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2007-01-09 20:58:05 +01:00
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}
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else
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configure.ac (INTERPRETER): New AM_CONDITIONAL.
* configure.ac (INTERPRETER): New AM_CONDITIONAL.
* scripts/makemake.tcl (package_map): Mark jdwp and jvmti packages
as being for interpreter only. Place interpreter related files in
'if INTERPRETER' block.
(interpreter_package_files): New list.
(interpreter_header_vars): Ditto.
(emit_package_rule_to_list): Renamed from emit_package_rule with
new target list parameter.
(emit_package_rule): Rewritten to call emit_package_rule_to_list.
(emit_interpreter_rule): New function.
(emit_source_var): Place interpreter related files in
interpreter_header_vars.
* Makefile.am (ACLOCAL_AMFLAGS): Add -I libltdl.
(libgcj_interpret_source_files): New variable.
(libgcj_la_SOURCES): Move jvmti.cc and interpret.cc to
libgcj_interpret_source_files and include
libgcj_interpret_source_files.
(nat_jdwp_source_files): New variable.
(nat_jvmti_source_files): Ditto.
(nat_source_files): Move jdwp and jvmti related files to
nat_jdwp_source_files and nat_jvmti_source_files and include
nat_jdwp_source_files and nat_jvmti_source_files.
* Makefile.in: Regenerate.
* include/Makefile.in: Ditto.
* testsuite/Makefile.in: Ditto.
* gcj/Makefile.in: Ditto.
* sources.am: Ditto.
* configure: Ditto.
* include/config.h.in: Ditto.
* interpret.cc: Remove #ifdef INTERPRETER block.
* stacktrace.cc (UnwindTraceFn): Do not handle proxy frames if
interpreter disabled.
* include/java-interp.h (_Jv_FrameType): Move outside of
#ifdef INTERPRETER block.
* include/execution.h (_Jv_IndirectCompiledEngine::do_get_closure_list,
_Jv_InterpreterEngine, _Jv_soleInterpreterEngine): Place in
#ifdef INTERPRETER block.
* jni.cc (jvmti.h, jvmti-int.h): Only include if INTERPRETER is
defined.
(_Jv_JNI_PopSystemFrame, _Jv_JNI_GetEnv): Only do jvmti processing
if INTERPRETER is defined.
* prims.cc (jvmti.h, jvmti-int.h, Jdwp.h, VMVirtualMachine.h): Only
include if INTERPRETER is defined.
(defaultJdwpOptions, jdwpOptions, jvmti_agent_onload_func,
jvmti_agent_onunload_func, jvmti_agentonload, jvmti_agentonunload,
jvmti_agent_opts, load_jvmti_agent): Only define if INTERPRETER is
defined.
(parse_x_arg): Only process 'runjdwp:' if INTERPRETER is defined.
(parse_init_args): Only process jvmti related options if
INTERPRETER is defined.
(_Jv_CreateJavaVM): Only call _Jv_JVMTI_Init if INTERPRETER is
defined.
(_Jv_RunMain): Only do jvmti and jdwp processing if INTERPRETER is
defined.
* link.cc (jvmti.h, jvmti-int.h): Only include if INTERPRETER is
defined.
(_Jv_ThrowNoClassDefFoundError, _Jv_Linker::create_error_method):
Define if if INTERPRETER is not defined.
(_Jv_Linker::wait_for_state): Only do jvmti proccessing if
INTERPRETER is defined.
* boehm.cc (closure_list_pointer, finalize_closure_list,
_Jv_ClosureListFinalizer): Only define if INTERPRETER is
defined.
* java/lang/natThread.cc (jvmti.h, jvmti-int.h): Only include if
INTERPRETER is defined.
(finish_, _Jv_NotifyThreadStart): Only do jvmti proccessing if
INTERPRETER is defined.
* java/lang/Class.h (_Jv_InterpreterEngine): Move declaration
and friend declaration inside #ifdef INTERPRETER block.
* java/lang/natClass.cc (_Jv_ClosureList::releaseClosures,
_Jv_ClosureList::registerClosure, _Jv_GetInterpClassSourceFile):
Only define if INTERPRETER is defined.
* java/lang/reflect/natVMProxy.cc (UnsupportedOperationException.h):
Include.
(generateProxyClass): Throw UnsupportedOperationException unless
INTERPRETER is defined.
From-SVN: r127097
2007-07-31 18:17:21 +02:00
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#endif
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2005-03-10 20:02:21 +01:00
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{
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2006-09-27 23:24:23 +02:00
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#ifdef HAVE_GETIPINFO
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2006-07-07 01:26:24 +02:00
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_Unwind_Ptr ip;
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int ip_before_insn = 0;
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ip = _Unwind_GetIPInfo (context, &ip_before_insn);
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// If the unwinder gave us a 'return' address, roll it back a little
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// to ensure we get the correct line number for the call itself.
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if (! ip_before_insn)
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--ip;
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2006-09-27 23:24:23 +02:00
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#endif
|
2005-03-10 20:02:21 +01:00
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state->frames[pos].type = frame_native;
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2006-09-27 23:24:23 +02:00
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#ifdef HAVE_GETIPINFO
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2006-07-07 01:26:24 +02:00
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state->frames[pos].ip = (void *) ip;
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2006-09-27 23:24:23 +02:00
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#else
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state->frames[pos].ip = (void *) _Unwind_GetIP (context);
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#endif
|
2005-12-01 00:58:16 +01:00
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state->frames[pos].start_ip = func_addr;
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2005-03-10 20:02:21 +01:00
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}
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_Unwind_Reason_Code result = _URC_NO_REASON;
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if (state->trace_function != NULL)
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result = (state->trace_function) (state);
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state->pos++;
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return result;
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}
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// Return a raw stack trace from the current point of execution. The raw
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// trace will include all functions that have unwind info.
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_Jv_StackTrace *
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_Jv_StackTrace::GetStackTrace(void)
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{
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int trace_size = 100;
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_Jv_StackFrame frames[trace_size];
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_Jv_UnwindState state (trace_size);
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state.frames = (_Jv_StackFrame *) &frames;
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_Unwind_Backtrace (UnwindTraceFn, &state);
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// Copy the trace and return it.
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int traceSize = sizeof (_Jv_StackTrace) +
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(sizeof (_Jv_StackFrame) * state.pos);
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_Jv_StackTrace *trace = (_Jv_StackTrace *) _Jv_AllocBytes (traceSize);
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trace->length = state.pos;
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memcpy (trace->frames, state.frames, sizeof (_Jv_StackFrame) * state.pos);
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return trace;
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}
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void
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_Jv_StackTrace::getLineNumberForFrame(_Jv_StackFrame *frame, NameFinder *finder,
|
2006-02-17 14:01:40 +01:00
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jstring *sourceFileName, jint *lineNum,
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jstring *methodName)
|
2005-03-10 20:02:21 +01:00
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{
|
2005-03-16 19:18:59 +01:00
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#ifdef INTERPRETER
|
2005-03-10 20:02:21 +01:00
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if (frame->type == frame_interpreter)
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{
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_Jv_InterpMethod *interp_meth = frame->interp.meth;
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_Jv_InterpClass *interp_class =
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(_Jv_InterpClass *) interp_meth->defining_class->aux_info;
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*sourceFileName = interp_class->source_file_name;
|
2006-07-12 15:56:25 +02:00
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// The interpreter advances the PC before executing an instruction,
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// so roll-back 1 byte to ensure the line number is accurate.
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*lineNum = interp_meth->get_source_line(frame->interp.pc - 1);
|
2005-03-10 20:02:21 +01:00
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return;
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}
|
2005-03-16 19:18:59 +01:00
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#endif
|
2006-06-29 16:57:39 +02:00
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2007-01-09 20:58:05 +01:00
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if (frame->type == frame_proxy)
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{
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*sourceFileName = NULL;
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*lineNum = 0;
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return;
|
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}
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|
2006-06-29 16:57:39 +02:00
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|
// Use _Jv_platform_dladdr() to determine in which binary the address IP
|
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// resides.
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_Jv_AddrInfo info;
|
2005-03-10 20:02:21 +01:00
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jstring binaryName = NULL;
|
2005-05-15 19:07:20 +02:00
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const char *argv0 = _Jv_GetSafeArg(0);
|
2005-03-10 20:02:21 +01:00
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void *ip = frame->ip;
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_Unwind_Ptr offset = 0;
|
2005-05-15 19:07:20 +02:00
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|
2006-06-29 16:57:39 +02:00
|
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if (_Jv_platform_dladdr (ip, &info))
|
2005-03-10 20:02:21 +01:00
|
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{
|
2006-06-29 16:57:39 +02:00
|
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|
if (info.file_name)
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|
binaryName = JvNewStringUTF (info.file_name);
|
2005-03-10 20:02:21 +01:00
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else
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return;
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|
2006-06-29 16:57:39 +02:00
|
|
|
if (*methodName == NULL && info.sym_name)
|
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|
*methodName = JvNewStringUTF (info.sym_name);
|
2006-02-17 14:01:40 +01:00
|
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|
2005-03-10 20:02:21 +01:00
|
|
|
// addr2line expects relative addresses for shared libraries.
|
2006-06-29 16:57:39 +02:00
|
|
|
if (strcmp (info.file_name, argv0) == 0)
|
2005-03-10 20:02:21 +01:00
|
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|
offset = (_Unwind_Ptr) ip;
|
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|
else
|
2006-06-29 16:57:39 +02:00
|
|
|
offset = (_Unwind_Ptr) ip - (_Unwind_Ptr) info.base;
|
2005-03-10 20:02:21 +01:00
|
|
|
|
2006-09-27 23:24:23 +02:00
|
|
|
#ifndef HAVE_GETIPINFO
|
|
|
|
// The unwinder gives us the return address. In order to get the right
|
|
|
|
// line number for the stack trace, roll it back a little.
|
|
|
|
offset -= 1;
|
|
|
|
#endif
|
|
|
|
|
2005-03-10 20:02:21 +01:00
|
|
|
finder->lookup (binaryName, (jlong) offset);
|
|
|
|
*sourceFileName = finder->getSourceFile();
|
|
|
|
*lineNum = finder->getLineNum();
|
2006-06-06 19:00:16 +02:00
|
|
|
if (*lineNum == -1 && NameFinder::showRaw())
|
|
|
|
{
|
|
|
|
gnu::gcj::runtime::StringBuffer *t =
|
|
|
|
new gnu::gcj::runtime::StringBuffer(binaryName);
|
|
|
|
t->append ((jchar)' ');
|
|
|
|
t->append ((jchar)'[');
|
|
|
|
// + 1 to compensate for the - 1 adjustment above;
|
|
|
|
t->append (Long::toHexString (offset + 1));
|
|
|
|
t->append ((jchar)']');
|
|
|
|
*sourceFileName = t->toString();
|
|
|
|
}
|
2005-03-10 20:02:21 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Look up class and method info for the given stack frame, setting
|
|
|
|
// frame->klass and frame->meth if they are known.
|
|
|
|
void
|
|
|
|
_Jv_StackTrace::FillInFrameInfo (_Jv_StackFrame *frame)
|
|
|
|
{
|
|
|
|
jclass klass = NULL;
|
|
|
|
_Jv_Method *meth = NULL;
|
|
|
|
|
|
|
|
if (frame->type == frame_native)
|
|
|
|
{
|
|
|
|
klass = _Jv_StackTrace::ClassForFrame (frame);
|
|
|
|
|
|
|
|
if (klass != NULL)
|
|
|
|
// Find method in class
|
|
|
|
for (int j = 0; j < klass->method_count; j++)
|
|
|
|
{
|
2006-05-15 23:38:25 +02:00
|
|
|
void *wncode = UNWRAP_FUNCTION_DESCRIPTOR (klass->methods[j].ncode);
|
2006-05-15 23:08:34 +02:00
|
|
|
if (wncode == frame->start_ip)
|
2005-03-10 20:02:21 +01:00
|
|
|
{
|
|
|
|
meth = &klass->methods[j];
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2007-01-09 20:58:05 +01:00
|
|
|
else if (frame->type == frame_proxy)
|
|
|
|
{
|
|
|
|
klass = frame->proxyClass;
|
|
|
|
meth = frame->proxyMethod;
|
|
|
|
}
|
2005-03-16 19:18:59 +01:00
|
|
|
#ifdef INTERPRETER
|
2005-03-10 20:02:21 +01:00
|
|
|
else if (frame->type == frame_interpreter)
|
|
|
|
{
|
|
|
|
_Jv_InterpMethod *interp_meth = frame->interp.meth;
|
|
|
|
klass = interp_meth->defining_class;
|
|
|
|
meth = interp_meth->self;
|
|
|
|
}
|
2005-03-16 19:18:59 +01:00
|
|
|
#endif
|
2005-03-10 20:02:21 +01:00
|
|
|
else
|
|
|
|
JvFail ("Unknown frame type");
|
|
|
|
|
|
|
|
frame->klass = klass;
|
|
|
|
frame->meth = meth;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Convert raw stack frames to a Java array of StackTraceElement objects.
|
|
|
|
JArray< ::java::lang::StackTraceElement *>*
|
|
|
|
_Jv_StackTrace::GetStackTraceElements (_Jv_StackTrace *trace,
|
|
|
|
Throwable *throwable __attribute__((unused)))
|
|
|
|
{
|
|
|
|
ArrayList *list = new ArrayList ();
|
|
|
|
|
2006-06-29 16:57:39 +02:00
|
|
|
#if defined (SJLJ_EXCEPTIONS) && ! defined (WIN32)
|
2005-03-10 20:02:21 +01:00
|
|
|
// We can't use the nCodeMap without unwinder support. Instead,
|
|
|
|
// fake the method name by giving the IP in hex - better than nothing.
|
|
|
|
jstring hex = JvNewStringUTF ("0x");
|
|
|
|
|
|
|
|
for (int i = 0; i < trace->length; i++)
|
|
|
|
{
|
|
|
|
jstring sourceFileName = NULL;
|
|
|
|
jint lineNum = -1;
|
|
|
|
_Jv_StackFrame *frame = &trace->frames[i];
|
|
|
|
|
|
|
|
jstring className = NULL;
|
|
|
|
jstring methodName = hex->concat (Long::toHexString ((jlong) frame->ip));
|
|
|
|
|
|
|
|
StackTraceElement *element = new StackTraceElement (sourceFileName,
|
|
|
|
lineNum, className, methodName, 0);
|
|
|
|
list->add (element);
|
|
|
|
}
|
|
|
|
|
2006-06-29 16:57:39 +02:00
|
|
|
#else /* SJLJ_EXCEPTIONS && !WIN32 */
|
2005-03-10 20:02:21 +01:00
|
|
|
|
|
|
|
//JvSynchronized (ncodeMap);
|
|
|
|
UpdateNCodeMap ();
|
|
|
|
|
|
|
|
NameFinder *finder = new NameFinder();
|
|
|
|
int start_idx = 0;
|
|
|
|
int end_idx = trace->length - 1;
|
|
|
|
|
|
|
|
// First pass: strip superfluous frames from beginning and end of the trace.
|
|
|
|
for (int i = 0; i < trace->length; i++)
|
|
|
|
{
|
|
|
|
_Jv_StackFrame *frame = &trace->frames[i];
|
|
|
|
FillInFrameInfo (frame);
|
|
|
|
|
|
|
|
if (!frame->klass || !frame->meth)
|
|
|
|
// Not a Java frame.
|
|
|
|
continue;
|
|
|
|
|
|
|
|
// Throw away the top of the stack till we see:
|
|
|
|
// - the constructor(s) of this Throwable, or
|
|
|
|
// - the Throwable.fillInStackTrace call.
|
|
|
|
if (frame->klass == throwable->getClass()
|
|
|
|
&& strcmp (frame->meth->name->chars(), "<init>") == 0)
|
|
|
|
start_idx = i + 1;
|
|
|
|
|
|
|
|
if (frame->klass == &Throwable::class$
|
|
|
|
&& strcmp (frame->meth->name->chars(), "fillInStackTrace") == 0)
|
|
|
|
start_idx = i + 1;
|
|
|
|
|
|
|
|
// End the trace at the application's main() method if we see call_main.
|
|
|
|
if (frame->klass == &gnu::java::lang::MainThread::class$
|
|
|
|
&& strcmp (frame->meth->name->chars(), "call_main") == 0)
|
|
|
|
end_idx = i - 1;
|
|
|
|
}
|
|
|
|
|
2006-02-17 14:01:40 +01:00
|
|
|
const jboolean remove_unknown
|
|
|
|
= gnu::gcj::runtime::NameFinder::removeUnknown();
|
|
|
|
|
2005-03-10 20:02:21 +01:00
|
|
|
// Second pass: Look up line-number info for remaining frames.
|
|
|
|
for (int i = start_idx; i <= end_idx; i++)
|
|
|
|
{
|
|
|
|
_Jv_StackFrame *frame = &trace->frames[i];
|
|
|
|
|
2006-02-17 14:01:40 +01:00
|
|
|
if (frame->klass == NULL && remove_unknown)
|
|
|
|
// Not a Java frame.
|
2005-03-10 20:02:21 +01:00
|
|
|
continue;
|
2006-02-17 14:01:40 +01:00
|
|
|
|
|
|
|
jstring className = NULL;
|
|
|
|
if (frame->klass != NULL)
|
|
|
|
className = frame->klass->getName ();
|
|
|
|
|
2005-03-10 20:02:21 +01:00
|
|
|
jstring methodName = NULL;
|
|
|
|
if (frame->meth)
|
|
|
|
methodName = JvNewStringUTF (frame->meth->name->chars());
|
|
|
|
|
|
|
|
jstring sourceFileName = NULL;
|
|
|
|
jint lineNum = -1;
|
|
|
|
|
2006-02-17 14:01:40 +01:00
|
|
|
getLineNumberForFrame(frame, finder, &sourceFileName, &lineNum,
|
|
|
|
&methodName);
|
2005-03-10 20:02:21 +01:00
|
|
|
|
|
|
|
StackTraceElement *element = new StackTraceElement (sourceFileName, lineNum,
|
|
|
|
className, methodName, 0);
|
|
|
|
list->add (element);
|
|
|
|
}
|
|
|
|
|
|
|
|
finder->close();
|
2006-06-29 16:57:39 +02:00
|
|
|
#endif /* SJLJ_EXCEPTIONS && !WIN32 */
|
2005-03-10 20:02:21 +01:00
|
|
|
|
|
|
|
JArray<Object *> *array = JvNewObjectArray (list->size (),
|
|
|
|
&StackTraceElement::class$, NULL);
|
|
|
|
|
|
|
|
return (JArray<StackTraceElement *>*) list->toArray (array);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct CallingClassTraceData
|
|
|
|
{
|
|
|
|
jclass checkClass;
|
|
|
|
jclass foundClass;
|
|
|
|
_Jv_Method *foundMeth;
|
|
|
|
bool seen_checkClass;
|
|
|
|
};
|
|
|
|
|
|
|
|
_Unwind_Reason_Code
|
|
|
|
_Jv_StackTrace::calling_class_trace_fn (_Jv_UnwindState *state)
|
|
|
|
{
|
|
|
|
CallingClassTraceData *trace_data = (CallingClassTraceData *)
|
|
|
|
state->trace_data;
|
|
|
|
_Jv_StackFrame *frame = &state->frames[state->pos];
|
|
|
|
FillInFrameInfo (frame);
|
|
|
|
|
|
|
|
if (trace_data->seen_checkClass
|
|
|
|
&& frame->klass
|
|
|
|
&& frame->klass != trace_data->checkClass)
|
|
|
|
{
|
|
|
|
trace_data->foundClass = frame->klass;
|
|
|
|
trace_data->foundMeth = frame->meth;
|
|
|
|
return _URC_NORMAL_STOP;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (frame->klass == trace_data->checkClass)
|
|
|
|
trace_data->seen_checkClass = true;
|
|
|
|
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Find the class immediately above the given class on the call stack. Any
|
|
|
|
// intermediate non-Java
|
|
|
|
// frames are ignored. If the calling class could not be determined (eg because
|
|
|
|
// the unwinder is not supported on this platform), NULL is returned.
|
|
|
|
// This function is used to implement calling-classloader checks and reflection
|
|
|
|
// accessibility checks.
|
|
|
|
// CHECKCLASS is typically the class calling GetCallingClass. The first class
|
|
|
|
// above CHECKCLASS on the call stack will be returned.
|
|
|
|
jclass
|
|
|
|
_Jv_StackTrace::GetCallingClass (jclass checkClass)
|
|
|
|
{
|
|
|
|
jclass result = NULL;
|
|
|
|
GetCallerInfo (checkClass, &result, NULL);
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
_Jv_StackTrace::GetCallerInfo (jclass checkClass, jclass *caller_class,
|
|
|
|
_Jv_Method **caller_meth)
|
|
|
|
{
|
|
|
|
int trace_size = 20;
|
|
|
|
_Jv_StackFrame frames[trace_size];
|
|
|
|
_Jv_UnwindState state (trace_size);
|
|
|
|
state.frames = (_Jv_StackFrame *) &frames;
|
|
|
|
|
|
|
|
CallingClassTraceData trace_data;
|
|
|
|
trace_data.checkClass = checkClass;
|
|
|
|
trace_data.seen_checkClass = false;
|
|
|
|
trace_data.foundClass = NULL;
|
|
|
|
trace_data.foundMeth = NULL;
|
|
|
|
|
|
|
|
state.trace_function = calling_class_trace_fn;
|
|
|
|
state.trace_data = (void *) &trace_data;
|
|
|
|
|
|
|
|
//JvSynchronized (ncodeMap);
|
|
|
|
UpdateNCodeMap ();
|
|
|
|
|
|
|
|
_Unwind_Backtrace (UnwindTraceFn, &state);
|
|
|
|
|
|
|
|
if (caller_class)
|
|
|
|
*caller_class = trace_data.foundClass;
|
|
|
|
if (caller_meth)
|
|
|
|
*caller_meth = trace_data.foundMeth;
|
|
|
|
}
|
|
|
|
|
|
|
|
_Unwind_Reason_Code
|
|
|
|
_Jv_StackTrace::non_system_trace_fn (_Jv_UnwindState *state)
|
|
|
|
{
|
|
|
|
_Jv_StackFrame *frame = &state->frames[state->pos];
|
|
|
|
FillInFrameInfo (frame);
|
|
|
|
|
|
|
|
ClassLoader *classLoader = NULL;
|
|
|
|
|
|
|
|
if (frame->klass)
|
|
|
|
{
|
|
|
|
classLoader = frame->klass->getClassLoaderInternal();
|
2005-03-16 19:18:59 +01:00
|
|
|
#ifdef INTERPRETER
|
2005-03-24 01:04:22 +01:00
|
|
|
if (classLoader != NULL)
|
2005-03-10 20:02:21 +01:00
|
|
|
{
|
|
|
|
state->trace_data = (void *) classLoader;
|
|
|
|
return _URC_NORMAL_STOP;
|
|
|
|
}
|
2005-03-16 19:18:59 +01:00
|
|
|
#endif
|
2005-03-10 20:02:21 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
}
|
|
|
|
|
|
|
|
ClassLoader *
|
|
|
|
_Jv_StackTrace::GetFirstNonSystemClassLoader ()
|
|
|
|
{
|
|
|
|
int trace_size = 32;
|
|
|
|
_Jv_StackFrame frames[trace_size];
|
|
|
|
_Jv_UnwindState state (trace_size);
|
|
|
|
state.frames = (_Jv_StackFrame *) &frames;
|
|
|
|
state.trace_function = non_system_trace_fn;
|
|
|
|
state.trace_data = NULL;
|
|
|
|
|
|
|
|
//JvSynchronized (ncodeMap);
|
|
|
|
UpdateNCodeMap ();
|
|
|
|
|
|
|
|
_Unwind_Backtrace (UnwindTraceFn, &state);
|
|
|
|
|
|
|
|
if (state.trace_data)
|
|
|
|
return (ClassLoader *) state.trace_data;
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
2006-07-28 12:54:11 +02:00
|
|
|
|
2006-08-10 11:56:03 +02:00
|
|
|
struct AccessControlTraceData
|
|
|
|
{
|
|
|
|
jint length;
|
|
|
|
jboolean privileged;
|
|
|
|
};
|
|
|
|
|
2006-08-09 10:38:28 +02:00
|
|
|
_Unwind_Reason_Code
|
|
|
|
_Jv_StackTrace::accesscontrol_trace_fn (_Jv_UnwindState *state)
|
|
|
|
{
|
2006-08-10 11:56:03 +02:00
|
|
|
AccessControlTraceData *trace_data = (AccessControlTraceData *)
|
|
|
|
state->trace_data;
|
2006-08-09 10:38:28 +02:00
|
|
|
_Jv_StackFrame *frame = &state->frames[state->pos];
|
|
|
|
FillInFrameInfo (frame);
|
|
|
|
|
2006-08-09 16:59:16 +02:00
|
|
|
if (!(frame->klass && frame->meth))
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
|
2006-08-10 11:56:03 +02:00
|
|
|
trace_data->length++;
|
|
|
|
|
|
|
|
// If the previous frame was a call to doPrivileged, then this is
|
|
|
|
// the last frame we look at.
|
|
|
|
if (trace_data->privileged)
|
2006-08-09 10:38:28 +02:00
|
|
|
return _URC_NORMAL_STOP;
|
|
|
|
|
|
|
|
if (frame->klass == &::java::security::AccessController::class$
|
|
|
|
&& strcmp (frame->meth->name->chars(), "doPrivileged") == 0)
|
2006-08-10 11:56:03 +02:00
|
|
|
trace_data->privileged = true;
|
2006-08-09 10:38:28 +02:00
|
|
|
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
}
|
|
|
|
|
2006-08-10 11:56:03 +02:00
|
|
|
jobjectArray
|
2006-08-09 10:38:28 +02:00
|
|
|
_Jv_StackTrace::GetAccessControlStack (void)
|
2006-07-28 12:54:11 +02:00
|
|
|
{
|
2006-08-09 10:38:28 +02:00
|
|
|
int trace_size = 100;
|
|
|
|
_Jv_StackFrame frames[trace_size];
|
|
|
|
_Jv_UnwindState state (trace_size);
|
|
|
|
state.frames = (_Jv_StackFrame *) &frames;
|
2006-08-10 11:56:03 +02:00
|
|
|
|
|
|
|
AccessControlTraceData trace_data;
|
|
|
|
trace_data.length = 0;
|
|
|
|
trace_data.privileged = false;
|
|
|
|
|
2006-08-09 10:38:28 +02:00
|
|
|
state.trace_function = accesscontrol_trace_fn;
|
2006-08-10 11:56:03 +02:00
|
|
|
state.trace_data = (void *) &trace_data;
|
2006-07-28 12:54:11 +02:00
|
|
|
|
|
|
|
UpdateNCodeMap();
|
2006-08-09 10:38:28 +02:00
|
|
|
_Unwind_Backtrace (UnwindTraceFn, &state);
|
|
|
|
|
2006-07-28 12:54:11 +02:00
|
|
|
JArray<jclass> *classes = (JArray<jclass> *)
|
2006-08-10 11:56:03 +02:00
|
|
|
_Jv_NewObjectArray (trace_data.length, &::java::lang::Class::class$, NULL);
|
|
|
|
jclass *c = elements (classes);
|
2006-07-28 12:54:11 +02:00
|
|
|
|
2006-08-09 10:38:28 +02:00
|
|
|
for (int i = 0, j = 0; i < state.pos; i++)
|
2006-07-28 12:54:11 +02:00
|
|
|
{
|
2006-08-09 10:38:28 +02:00
|
|
|
_Jv_StackFrame *frame = &state.frames[i];
|
2006-07-28 12:54:11 +02:00
|
|
|
if (!frame->klass || !frame->meth)
|
|
|
|
continue;
|
|
|
|
c[j] = frame->klass;
|
|
|
|
j++;
|
|
|
|
}
|
|
|
|
|
2006-08-10 11:56:03 +02:00
|
|
|
jobjectArray result =
|
|
|
|
(jobjectArray) _Jv_NewObjectArray (2, &::java::lang::Object::class$,
|
|
|
|
NULL);
|
|
|
|
jobject *r = elements (result);
|
|
|
|
r[0] = (jobject) classes;
|
|
|
|
r[1] = (jobject) new Boolean (trace_data.privileged);
|
|
|
|
|
2006-07-28 12:54:11 +02:00
|
|
|
return result;
|
|
|
|
}
|
2007-01-09 20:58:05 +01:00
|
|
|
|
|
|
|
JArray<jclass> *
|
|
|
|
_Jv_StackTrace::GetStackWalkerStack ()
|
|
|
|
{
|
|
|
|
int trace_size = 100;
|
|
|
|
_Jv_StackFrame frames[trace_size];
|
|
|
|
_Jv_UnwindState state (trace_size);
|
|
|
|
state.frames = (_Jv_StackFrame *) &frames;
|
|
|
|
|
|
|
|
UpdateNCodeMap ();
|
|
|
|
_Unwind_Backtrace (UnwindTraceFn, &state);
|
|
|
|
|
|
|
|
int num_frames = 0, start_frame = -1;
|
|
|
|
enum
|
|
|
|
{
|
|
|
|
VMSW_GETCLASSCONTEXT,
|
|
|
|
JLRM_INVOKE_OR_USER_FN,
|
|
|
|
USER_FN
|
|
|
|
}
|
|
|
|
expect = VMSW_GETCLASSCONTEXT;
|
|
|
|
for (int i = 0; i < state.pos; i++)
|
|
|
|
{
|
|
|
|
_Jv_StackFrame *frame = &state.frames[i];
|
|
|
|
FillInFrameInfo (frame);
|
|
|
|
if (!frame->klass || !frame->meth)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
switch (expect)
|
|
|
|
{
|
|
|
|
case VMSW_GETCLASSCONTEXT:
|
|
|
|
JvAssert (
|
|
|
|
frame->klass == &::gnu::classpath::VMStackWalker::class$
|
|
|
|
&& strcmp (frame->meth->name->chars(), "getClassContext") == 0);
|
|
|
|
expect = JLRM_INVOKE_OR_USER_FN;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case JLRM_INVOKE_OR_USER_FN:
|
|
|
|
if (frame->klass != &::java::lang::reflect::Method::class$
|
|
|
|
|| strcmp (frame->meth->name->chars(), "invoke") != 0)
|
|
|
|
start_frame = i;
|
|
|
|
expect = USER_FN;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case USER_FN:
|
|
|
|
if (start_frame == -1)
|
|
|
|
start_frame = i;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (start_frame != -1)
|
|
|
|
{
|
|
|
|
if (frame->klass == &::gnu::java::lang::MainThread::class$)
|
|
|
|
break;
|
|
|
|
num_frames++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
JvAssert (num_frames > 0 && start_frame > 0);
|
|
|
|
|
|
|
|
JArray<jclass> *result = (JArray<jclass> *)
|
|
|
|
_Jv_NewObjectArray (num_frames, &::java::lang::Class::class$, NULL);
|
|
|
|
jclass *c = elements (result);
|
|
|
|
|
|
|
|
for (int i = start_frame, j = 0; i < state.pos && j < num_frames; i++)
|
|
|
|
{
|
|
|
|
_Jv_StackFrame *frame = &state.frames[i];
|
|
|
|
if (!frame->klass || !frame->meth)
|
|
|
|
continue;
|
|
|
|
c[j] = frame->klass;
|
|
|
|
j++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
typedef enum
|
|
|
|
{
|
|
|
|
VMSW_GET_CALLING_ITEM,
|
|
|
|
JLRM_INVOKE_OR_CALLER,
|
|
|
|
CALLER,
|
|
|
|
CALLER_OF_CALLER
|
|
|
|
} gswcc_expect;
|
|
|
|
|
|
|
|
struct StackWalkerTraceData
|
|
|
|
{
|
|
|
|
gswcc_expect expect;
|
|
|
|
jclass result;
|
|
|
|
};
|
|
|
|
|
|
|
|
_Unwind_Reason_Code
|
|
|
|
_Jv_StackTrace::stackwalker_trace_fn (_Jv_UnwindState *state)
|
|
|
|
{
|
|
|
|
StackWalkerTraceData *trace_data = (StackWalkerTraceData *)
|
|
|
|
state->trace_data;
|
|
|
|
_Jv_StackFrame *frame = &state->frames[state->pos];
|
|
|
|
FillInFrameInfo (frame);
|
|
|
|
|
|
|
|
if (!(frame->klass && frame->meth))
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
|
|
|
|
switch (trace_data->expect)
|
|
|
|
{
|
|
|
|
case VMSW_GET_CALLING_ITEM:
|
|
|
|
JvAssert (frame->klass == &::gnu::classpath::VMStackWalker::class$);
|
|
|
|
trace_data->expect = JLRM_INVOKE_OR_CALLER;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case JLRM_INVOKE_OR_CALLER:
|
|
|
|
if (frame->klass == &::java::lang::reflect::Method::class$
|
|
|
|
&& strcmp (frame->meth->name->chars(), "invoke") == 0)
|
|
|
|
trace_data->expect = CALLER;
|
|
|
|
else
|
|
|
|
trace_data->expect = CALLER_OF_CALLER;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CALLER:
|
|
|
|
trace_data->expect = CALLER_OF_CALLER;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CALLER_OF_CALLER:
|
|
|
|
trace_data->result = frame->klass;
|
|
|
|
return _URC_NORMAL_STOP;
|
|
|
|
}
|
|
|
|
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
}
|
|
|
|
|
|
|
|
jclass
|
|
|
|
_Jv_StackTrace::GetStackWalkerCallingClass (void)
|
|
|
|
{
|
|
|
|
int trace_size = 100;
|
|
|
|
_Jv_StackFrame frames[trace_size];
|
|
|
|
_Jv_UnwindState state (trace_size);
|
|
|
|
state.frames = (_Jv_StackFrame *) &frames;
|
|
|
|
|
|
|
|
StackWalkerTraceData trace_data;
|
|
|
|
trace_data.expect = VMSW_GET_CALLING_ITEM;
|
|
|
|
trace_data.result = NULL;
|
|
|
|
|
|
|
|
state.trace_function = stackwalker_trace_fn;
|
|
|
|
state.trace_data = (void *) &trace_data;
|
|
|
|
|
|
|
|
UpdateNCodeMap();
|
|
|
|
_Unwind_Backtrace (UnwindTraceFn, &state);
|
|
|
|
|
|
|
|
return trace_data.result;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct StackWalkerNNLTraceData
|
|
|
|
{
|
|
|
|
gswcc_expect expect;
|
|
|
|
ClassLoader *result;
|
|
|
|
};
|
|
|
|
|
|
|
|
_Unwind_Reason_Code
|
|
|
|
_Jv_StackTrace::stackwalker_nnl_trace_fn (_Jv_UnwindState *state)
|
|
|
|
{
|
|
|
|
StackWalkerNNLTraceData *trace_data = (StackWalkerNNLTraceData *)
|
|
|
|
state->trace_data;
|
|
|
|
_Jv_StackFrame *frame = &state->frames[state->pos];
|
|
|
|
FillInFrameInfo (frame);
|
|
|
|
|
|
|
|
if (!(frame->klass && frame->meth))
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
|
|
|
|
switch (trace_data->expect)
|
|
|
|
{
|
|
|
|
case VMSW_GET_CALLING_ITEM:
|
|
|
|
JvAssert (frame->klass == &::gnu::classpath::VMStackWalker::class$);
|
|
|
|
trace_data->expect = JLRM_INVOKE_OR_CALLER;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case JLRM_INVOKE_OR_CALLER:
|
|
|
|
if (frame->klass == &::java::lang::reflect::Method::class$
|
|
|
|
&& strcmp (frame->meth->name->chars(), "invoke") == 0)
|
|
|
|
trace_data->expect = CALLER;
|
|
|
|
else
|
|
|
|
trace_data->expect = CALLER_OF_CALLER;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CALLER:
|
|
|
|
trace_data->expect = CALLER_OF_CALLER;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CALLER_OF_CALLER:
|
|
|
|
ClassLoader *cl = frame->klass->getClassLoaderInternal ();
|
|
|
|
if (cl != NULL)
|
|
|
|
{
|
|
|
|
trace_data->result = cl;
|
|
|
|
return _URC_NORMAL_STOP;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return _URC_NO_REASON;
|
|
|
|
}
|
|
|
|
|
|
|
|
ClassLoader *
|
|
|
|
_Jv_StackTrace::GetStackWalkerFirstNonNullLoader (void)
|
|
|
|
{
|
|
|
|
int trace_size = 100;
|
|
|
|
_Jv_StackFrame frames[trace_size];
|
|
|
|
_Jv_UnwindState state (trace_size);
|
|
|
|
state.frames = (_Jv_StackFrame *) &frames;
|
|
|
|
|
|
|
|
StackWalkerNNLTraceData trace_data;
|
|
|
|
trace_data.expect = VMSW_GET_CALLING_ITEM;
|
|
|
|
trace_data.result = NULL;
|
|
|
|
|
|
|
|
state.trace_function = stackwalker_nnl_trace_fn;
|
|
|
|
state.trace_data = (void *) &trace_data;
|
|
|
|
|
|
|
|
UpdateNCodeMap();
|
|
|
|
_Unwind_Backtrace (UnwindTraceFn, &state);
|
|
|
|
|
|
|
|
return trace_data.result;
|
|
|
|
}
|