-/* src/vm/jit/stacktrace.c - machine independet stacktrace system
+/* src/vm/jit/stacktrace.c - machine independent stacktrace system
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
J. Wenninger, Institut f. Computersprachen - TU Wien
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Joseph Wenninger
-
- Changes: Christian Thalinger
- Edwin Steiner
-
- $Id: stacktrace.c 4457 2006-02-06 01:28:07Z edwin $
-
*/
#include "config.h"
#include <assert.h>
+#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "vm/types.h"
-#include "mm/boehm.h"
+#include "mm/gc-common.h"
#include "mm/memory.h"
-#include "native/native.h"
+
+#include "vm/jit/stacktrace.h"
#include "vm/global.h" /* required here for native includes */
-#include "native/include/java_lang_ClassLoader.h"
+#include "native/jni.h"
+#include "native/llni.h"
#include "native/include/java_lang_Throwable.h"
-#include "native/include/java_lang_VMThrowable.h"
-#if defined(USE_THREADS)
-# if defined(NATIVE_THREADS)
-# include "threads/native/threads.h"
-# else
-# include "threads/green/threads.h"
-# endif
+#if defined(WITH_CLASSPATH_GNU)
+# include "native/include/java_lang_VMThrowable.h"
+#endif
+
+#if defined(ENABLE_THREADS)
+# include "threads/native/threads.h"
#else
# include "threads/none/threads.h"
#endif
#include "toolbox/logging.h"
+
+#include "vm/array.h"
#include "vm/builtin.h"
-#include "vm/class.h"
+#include "vm/cycles-stats.h"
#include "vm/exceptions.h"
-#include "vm/loader.h"
-#include "vm/options.h"
#include "vm/stringlocal.h"
+#include "vm/vm.h"
+
#include "vm/jit/asmpart.h"
#include "vm/jit/codegen-common.h"
+#include "vm/jit/linenumbertable.h"
#include "vm/jit/methodheader.h"
+#include "vmcore/class.h"
+#include "vmcore/loader.h"
+#include "vmcore/options.h"
-/* linenumbertable_entry ******************************************************/
-
-/* Keep the type of line the same as the pointer type, otherwise we
- run into alignment troubles (like on MIPS64). */
-
-typedef struct linenumbertable_entry linenumbertable_entry;
-
-struct linenumbertable_entry {
- ptrint line; /* NOTE: see doc/inlining_stacktrace.txt for */
- u1 *pc; /* special meanings of line and pc. */
-};
/* global variables ***********************************************************/
-
-#if !defined(USE_THREADS)
-stackframeinfo *_no_threads_stackframeinfo = NULL;
-#endif
-
-
-/* stacktrace_create_stackframeinfo ********************************************
-
- Creates an stackframe info structure for inline code in the
- interpreter.
-
-*******************************************************************************/
-
-#if defined(ENABLE_INTRP)
-void stacktrace_create_stackframeinfo(stackframeinfo *sfi, u1 *pv, u1 *sp,
- u1 *ra)
-{
- stackframeinfo **psfi;
- methodinfo *m;
-
- /* get current stackframe info pointer */
-
- psfi = STACKFRAMEINFO;
-
- /* if we don't have pv handy */
-
- if (pv == NULL) {
-#if defined(ENABLE_INTRP)
- if (opt_intrp)
- pv = codegen_findmethod(ra);
- else
+#if !defined(ENABLE_THREADS)
+stackframeinfo_t *_no_threads_stackframeinfo = NULL;
#endif
- {
-#if defined(ENABLE_JIT)
- pv = md_codegen_findmethod(ra);
-#endif
- }
- }
-
- /* get methodinfo pointer from data segment */
-
- m = *((methodinfo **) (pv + MethodPointer));
-
- /* fill new stackframe info structure */
- sfi->prev = *psfi;
- sfi->method = m;
- sfi->pv = pv;
- sfi->sp = sp;
- sfi->ra = ra;
+CYCLES_STATS_DECLARE(stacktrace_overhead ,100,1)
+CYCLES_STATS_DECLARE(stacktrace_fillInStackTrace,40,5000)
+CYCLES_STATS_DECLARE(stacktrace_getClassContext ,40,5000)
+CYCLES_STATS_DECLARE(stacktrace_getCurrentClass ,40,5000)
+CYCLES_STATS_DECLARE(stacktrace_getStack ,40,10000)
- /* xpc is the same as ra, but is required in stacktrace_create */
- sfi->xpc = ra;
+/* stacktrace_stackframeinfo_add ***********************************************
- /* store new stackframe info pointer */
-
- *psfi = sfi;
-}
-#endif /* defined(ENABLE_INTRP) */
-
-
-/* stacktrace_create_inline_stackframeinfo *************************************
-
- Creates an stackframe info structure for an inline exception stub.
+ Fills a stackframe info structure with the given or calculated
+ values and adds it to the chain.
*******************************************************************************/
-void stacktrace_create_inline_stackframeinfo(stackframeinfo *sfi, u1 *pv,
- u1 *sp, u1 *ra, u1 *xpc)
+void stacktrace_stackframeinfo_add(stackframeinfo_t *sfi, u1 *pv, u1 *sp, u1 *ra, u1 *xpc)
{
- stackframeinfo **psfi;
-
- /* get current stackframe info pointer */
-
- psfi = STACKFRAMEINFO;
-
-#if defined(ENABLE_INTRP)
- if (opt_intrp) {
- /* if we don't have pv handy */
-
- if (pv == NULL)
- pv = codegen_findmethod(ra);
-
- }
-#endif
-
- /* fill new stackframe info structure */
-
- sfi->prev = *psfi;
- sfi->method = NULL;
- sfi->pv = pv;
- sfi->sp = sp;
- sfi->ra = ra;
- sfi->xpc = xpc;
-
- /* store new stackframe info pointer */
-
- *psfi = sfi;
-}
-
-
-/* stacktrace_create_extern_stackframeinfo *************************************
-
- Creates an stackframe info structure for an extern exception
- (hardware or assembler).
-
-*******************************************************************************/
-
-void stacktrace_create_extern_stackframeinfo(stackframeinfo *sfi, u1 *pv,
- u1 *sp, u1 *ra, u1 *xpc)
-{
- stackframeinfo **psfi;
-#if !defined(__I386__) && !defined(__X86_64__)
- bool isleafmethod;
+ stackframeinfo_t **psfi;
+ codeinfo *code;
+#if !defined(__I386__) && !defined(__X86_64__) && !defined(__S390__) && !defined(__M68K__)
+ bool isleafmethod;
#endif
#if defined(ENABLE_JIT)
- s4 framesize;
+ s4 framesize;
#endif
/* get current stackframe info pointer */
- psfi = STACKFRAMEINFO;
+ psfi = &STACKFRAMEINFO;
/* sometimes we don't have pv handy (e.g. in asmpart.S:
L_asm_call_jit_compiler_exception or in the interpreter). */
if (pv == NULL) {
#if defined(ENABLE_INTRP)
if (opt_intrp)
- pv = codegen_findmethod(ra);
+ pv = codegen_get_pv_from_pc(ra);
else
#endif
{
#if defined(ENABLE_JIT)
- pv = md_codegen_findmethod(ra);
+# if defined(__SPARC_64__)
+ pv = md_get_pv_from_stackframe(sp);
+# else
+ pv = md_codegen_get_pv_from_pc(ra);
+# endif
#endif
}
}
+ /* Get codeinfo pointer for the parent Java method. */
+
+ code = code_get_codeinfo_for_pv(pv);
+
+ /* XXX */
+/* assert(m != NULL); */
+
#if defined(ENABLE_JIT)
# if defined(ENABLE_INTRP)
/* When using the interpreter, we pass RA to the function. */
if (!opt_intrp) {
# endif
-# if defined(__I386__) || defined(__X86_64__)
+# if defined(__I386__) || defined(__X86_64__) || defined(__S390__) || defined(__M68K__)
/* On i386 and x86_64 we always have to get the return address
from the stack. */
+ /* m68k has return address on stack always */
+ /* On S390 we use REG_RA as REG_ITMP3, so we have always to get
+ the RA from stack. */
framesize = *((u4 *) (pv + FrameSize));
# if defined(ENABLE_INTRP)
}
# endif
-#endif /* defined(ENABLE_JIT) */
-
- /* fill new stackframe info structure */
-
- sfi->prev = *psfi;
- sfi->method = NULL;
- sfi->pv = pv;
- sfi->sp = sp;
- sfi->ra = ra;
- sfi->xpc = xpc;
-
- /* store new stackframe info pointer */
-
- *psfi = sfi;
-}
-
-
-/* stacktrace_create_native_stackframeinfo *************************************
-
- Creates a stackframe info structure for a native stub.
-
-*******************************************************************************/
-
-void stacktrace_create_native_stackframeinfo(stackframeinfo *sfi, u1 *pv,
- u1 *sp, u1 *ra)
-{
- stackframeinfo **psfi;
- methodinfo *m;
-
- /* get methodinfo pointer from data segment */
-
- m = *((methodinfo **) (pv + MethodPointer));
-
- /* get current stackframe info pointer */
+#endif
- psfi = STACKFRAMEINFO;
+ /* Calculate XPC when not given. The XPC is then the return
+ address of the current method minus 1 because the RA points to
+ the instruction after the call instruction. This is required
+ e.g. for method stubs. */
- /* fill new stackframe info structure */
+ if (xpc == NULL) {
+ xpc = (void *) (((intptr_t) ra) - 1);
+ }
- sfi->prev = *psfi;
- sfi->method = m;
- sfi->pv = NULL;
- sfi->sp = sp;
- sfi->ra = ra;
- sfi->xpc = NULL;
+ /* Fill new stackframeinfo structure. */
+
+ sfi->prev = *psfi;
+ sfi->code = code;
+ sfi->pv = pv;
+ sfi->sp = sp;
+ sfi->ra = ra;
+ sfi->xpc = xpc;
+
+#if !defined(NDEBUG)
+ if (opt_DebugStackFrameInfo) {
+ log_start();
+ log_print("[stackframeinfo add : sfi=%p, method=%p, pv=%p, sp=%p, ra=%p, xpc=%p, method=",
+ sfi, sfi->code->m, sfi->pv, sfi->sp, sfi->ra, sfi->xpc);
+ method_print(sfi->code->m);
+ log_print("]");
+ log_finish();
+ }
+#endif
- /* store new stackframe info pointer */
+ /* Store new stackframeinfo pointer. */
*psfi = sfi;
-}
-
-
-/* stacktrace_remove_stackframeinfo ********************************************
-
- XXX
-
-*******************************************************************************/
-void stacktrace_remove_stackframeinfo(stackframeinfo *sfi)
-{
- stackframeinfo **psfi;
-
- /* get current stackframe info pointer */
-
- psfi = STACKFRAMEINFO;
+ /* set the native world flag for the current thread */
+ /* ATTENTION: This flag tells the GC how to treat this thread in case of
+ a collection. Set this flag _after_ a valid stackframe info was set. */
- /* restore the old pointer */
-
- *psfi = sfi->prev;
+ THREAD_NATIVEWORLD_ENTER;
}
-/* stacktrace_inline_arithmeticexception ***************************************
+/* stacktrace_stackframeinfo_remove ********************************************
- Creates an ArithemticException for inline stub.
+ Remove the given stackframeinfo from the chain in the current
+ thread.
*******************************************************************************/
-java_objectheader *stacktrace_inline_arithmeticexception(u1 *pv, u1 *sp,
- u1 *ra, u1 *xpc)
+void stacktrace_stackframeinfo_remove(stackframeinfo_t *sfi)
{
- stackframeinfo sfi;
- java_objectheader *o;
+ stackframeinfo_t **psfi;
- /* create stackframeinfo */
-
- stacktrace_create_inline_stackframeinfo(&sfi, pv, sp, ra, xpc);
-
- /* create exception */
-
- o = new_arithmeticexception();
-
- /* remove stackframeinfo */
-
- stacktrace_remove_stackframeinfo(&sfi);
-
- return o;
-}
+ /* clear the native world flag for the current thread */
+ /* ATTENTION: Clear this flag _before_ removing the stackframe info */
+ THREAD_NATIVEWORLD_EXIT;
-/* stacktrace_inline_arrayindexoutofboundsexception ****************************
-
- Creates an ArrayIndexOutOfBoundsException for inline stub.
-
-*******************************************************************************/
-
-java_objectheader *stacktrace_inline_arrayindexoutofboundsexception(u1 *pv,
- u1 *sp,
- u1 *ra,
- u1 *xpc,
- s4 index)
-{
- stackframeinfo sfi;
- java_objectheader *o;
-
- /* create stackframeinfo */
-
- stacktrace_create_inline_stackframeinfo(&sfi, pv, sp, ra, xpc);
-
- /* create exception */
+ /* get current stackframe info pointer */
- o = new_arrayindexoutofboundsexception(index);
+ psfi = &STACKFRAMEINFO;
- /* remove stackframeinfo */
+#if !defined(NDEBUG)
+ if (opt_DebugStackFrameInfo) {
+ log_start();
+ log_print("[stackframeinfo remove: sfi=%p, method=%p, pv=%p, sp=%p, ra=%p, xpc=%p, method=",
+ sfi, sfi->code->m, sfi->pv, sfi->sp, sfi->ra, sfi->xpc);
+ method_print(sfi->code->m);
+ log_print("]");
+ log_finish();
+ }
+#endif
- stacktrace_remove_stackframeinfo(&sfi);
+ /* restore the old pointer */
- return o;
+ *psfi = sfi->prev;
}
-/* stacktrace_inline_arraystoreexception ***************************************
+/* stacktrace_entry_add ********************************************************
- Creates an ArrayStoreException for inline stub.
+ Adds a new entry to the stacktrace buffer.
*******************************************************************************/
-java_objectheader *stacktrace_inline_arraystoreexception(u1 *pv, u1 *sp, u1 *ra,
- u1 *xpc)
+static inline stacktracebuffer *stacktrace_entry_add(stacktracebuffer *stb, methodinfo *m, u2 line)
{
- stackframeinfo sfi;
- java_objectheader *o;
-
- /* create stackframeinfo */
-
- stacktrace_create_inline_stackframeinfo(&sfi, pv, sp, ra, xpc);
-
- /* create exception */
-
- o = new_arraystoreexception();
-
- /* remove stackframeinfo */
+ stacktrace_entry *ste;
+ u4 stb_size_old;
+ u4 stb_size_new;
- stacktrace_remove_stackframeinfo(&sfi);
+ /* check if we already reached the buffer capacity */
- return o;
-}
+ if (stb->used >= stb->capacity) {
+ /* calculate size of stacktracebuffer */
+ stb_size_old = sizeof(stacktracebuffer) +
+ sizeof(stacktrace_entry) * stb->capacity -
+ sizeof(stacktrace_entry) * STACKTRACE_CAPACITY_DEFAULT;
-/* stacktrace_inline_classcastexception ****************************************
+ stb_size_new = stb_size_old +
+ sizeof(stacktrace_entry) * STACKTRACE_CAPACITY_INCREMENT;
- Creates an ClassCastException for inline stub.
+ /* reallocate new memory */
-*******************************************************************************/
+ stb = DMREALLOC(stb, u1, stb_size_old, stb_size_new);
-java_objectheader *stacktrace_inline_classcastexception(u1 *pv, u1 *sp, u1 *ra,
- u1 *xpc)
-{
- stackframeinfo sfi;
- java_objectheader *o;
+ /* set new buffer capacity */
- /* create stackframeinfo */
+ stb->capacity = stb->capacity + STACKTRACE_CAPACITY_INCREMENT;
+ }
- stacktrace_create_inline_stackframeinfo(&sfi, pv, sp, ra, xpc);
+ /* insert the current entry */
- /* create exception */
+ ste = &(stb->entries[stb->used]);
- o = new_classcastexception();
+ ste->method = m;
+ ste->linenumber = line;
- /* remove stackframeinfo */
+ /* increase entries used count */
- stacktrace_remove_stackframeinfo(&sfi);
+ stb->used += 1;
- return o;
+ return stb;
}
-/* stacktrace_inline_nullpointerexception **************************************
-
- Creates an NullPointerException for inline stub.
-
-*******************************************************************************/
-
-java_objectheader *stacktrace_inline_nullpointerexception(u1 *pv, u1 *sp,
- u1 *ra, u1 *xpc)
-{
- stackframeinfo sfi;
- java_objectheader *o;
-
- /* create stackframeinfo */
-
- stacktrace_create_inline_stackframeinfo(&sfi, pv, sp, ra, xpc);
+/* stacktrace_method_add *******************************************************
- /* create exception */
+ Add stacktrace entries[1] for the given method to the stacktrace
+ buffer.
- o = new_nullpointerexception();
-
- /* remove stackframeinfo */
-
- stacktrace_remove_stackframeinfo(&sfi);
-
- return o;
-}
-
-
-/* stacktrace_hardware_arithmeticexception *************************************
+ IN:
+ stb....stacktracebuffer to fill
+ sfi....current stackframeinfo
+ OUT:
+ stacktracebuffer after possible reallocation.
- Creates an ArithemticException for inline stub.
+ [1] In case of inlined methods there may be more than one stacktrace
+ entry for a codegen-level method. (see doc/inlining_stacktrace.txt)
*******************************************************************************/
-java_objectheader *stacktrace_hardware_arithmeticexception(u1 *pv, u1 *sp,
- u1 *ra, u1 *xpc)
+static inline stacktracebuffer *stacktrace_method_add(stacktracebuffer *stb, stackframeinfo_t *sfi)
{
- stackframeinfo sfi;
- java_objectheader *o;
-
- /* create stackframeinfo */
-
- stacktrace_create_extern_stackframeinfo(&sfi, pv, sp, ra, xpc);
-
- /* create exception */
-
- o = new_arithmeticexception();
+ codeinfo *code;
+ void *pv;
+ void *xpc;
+ methodinfo *m;
+ int32_t linenumber;
- /* remove stackframeinfo */
+ /* Get values from the stackframeinfo. */
- stacktrace_remove_stackframeinfo(&sfi);
+ code = sfi->code;
+ pv = sfi->pv;
+ xpc = sfi->xpc;
- return o;
-}
-
-
-/* stacktrace_hardware_nullpointerexception ************************************
-
- Creates an NullPointerException for the SIGSEGV signal handler.
-
-*******************************************************************************/
-
-java_objectheader *stacktrace_hardware_nullpointerexception(u1 *pv, u1 *sp,
- u1 *ra, u1 *xpc)
-{
- stackframeinfo sfi;
- java_objectheader *o;
+ m = code->m;
- /* create stackframeinfo */
+ /* Skip builtin methods. */
- stacktrace_create_extern_stackframeinfo(&sfi, pv, sp, ra, xpc);
+ if (m->flags & ACC_METHOD_BUILTIN)
+ return stb;
- /* create exception */
+ /* Search the line number table. */
- o = new_nullpointerexception();
+ linenumber = linenumbertable_linenumber_for_pc(&m, code, xpc);
- /* remove stackframeinfo */
+ /* Add a new entry to the staktrace. */
- stacktrace_remove_stackframeinfo(&sfi);
+ stb = stacktrace_entry_add(stb, m, linenumber);
- return o;
+ return stb;
}
-/* stacktrace_inline_fillInStackTrace ******************************************
-
- Fills in the correct stacktrace into an existing exception object
- (this one is for inline exception stubs).
-
-*******************************************************************************/
-
-java_objectheader *stacktrace_inline_fillInStackTrace(u1 *pv, u1 *sp, u1 *ra,
- u1 *xpc)
-{
- stackframeinfo sfi;
- java_objectheader *o;
- methodinfo *m;
-
- /* create stackframeinfo */
-
- stacktrace_create_inline_stackframeinfo(&sfi, pv, sp, ra, xpc);
-
- /* get exception */
-
- o = *exceptionptr;
-
- /* clear exception */
-
- *exceptionptr = NULL;
-
- /* resolve methodinfo pointer from exception object */
-
- m = class_resolvemethod(o->vftbl->class,
- utf_fillInStackTrace,
- utf_void__java_lang_Throwable);
-
- /* call function */
-
- ASM_CALLJAVAFUNCTION(m, o, NULL, NULL, NULL);
-
- /* remove stackframeinfo */
-
- stacktrace_remove_stackframeinfo(&sfi);
-
- return o;
-}
+/* stacktrace_stack_walk *******************************************************
+ Walk the stack (or the stackframeinfo-chain) to the next method.
-/* stacktrace_add_entry ********************************************************
+ IN:
+ tmpsfi ... stackframeinfo of current method
- Adds a new entry to the stacktrace buffer.
+ RETURN:
+ true .... the sfi is filled with the new values
+ false ... we reached the top of the stacktrace
*******************************************************************************/
-static void stacktrace_add_entry(stacktracebuffer *stb, methodinfo *m, u2 line)
+static inline bool stacktrace_stack_walk(stackframeinfo_t *tmpsfi)
{
- stacktrace_entry *ste;
-
- /* check if we already reached the buffer capacity */
-
- if (stb->used >= stb->capacity) {
- /* reallocate new memory */
-
- stb->entries = DMREALLOC(stb->entries, stacktrace_entry, stb->capacity,
- stb->capacity + STACKTRACE_CAPACITY_INCREMENT);
-
- /* set new buffer capacity */
-
- stb->capacity = stb->capacity + STACKTRACE_CAPACITY_INCREMENT;
- }
+ codeinfo *code;
+ void *pv;
+ void *sp;
+ void *ra;
+ void *xpc;
+ uint32_t framesize;
+ stackframeinfo_t *prevsfi;
- /* insert the current entry */
-
- ste = &(stb->entries[stb->used]);
-
- ste->method = m;
- ste->linenumber = line;
-
- /* increase entries used count */
+ /* Get values from the stackframeinfo. */
- stb->used += 1;
-}
+ code = tmpsfi->code;
+ pv = tmpsfi->pv;
+ sp = tmpsfi->sp;
+ ra = tmpsfi->ra;
+ xpc = tmpsfi->xpc;
+ /* Get the current stack frame size. */
-/* stacktrace_add_method_intern ************************************************
+ framesize = *((uint32_t *) (((intptr_t) pv) + FrameSize));
- This function is used by stacktrace_add_method to search the line number
- table for the line corresponding to a given pc. The function recurses for
- inlined methods.
+ /* Get the RA of the current stack frame (RA to the parent Java
+ method) if the current method is a non-leaf method. Otherwise
+ the value in the stackframeinfo is correct (from the signal
+ handler). */
-*******************************************************************************/
-
-static bool stacktrace_add_method_intern(stacktracebuffer *stb,
- methodinfo *m,
- linenumbertable_entry *lntentry,
- ptrint lntsize,
- u1 *pc)
-{
- linenumbertable_entry *lntinline; /* special entry for inlined method */
-
- assert(stb);
- assert(lntentry);
-
- /* Find the line number for the specified PC (going backwards
- in the linenumber table). The linenumber table size is zero
- in native stubs. */
-
- for (; lntsize > 0; lntsize--, lntentry--) {
-
- /* did we reach the current line? */
- /* Note: In case of inlining this may actually compare the pc against a */
- /* methodinfo *, yielding a non-sensical result. This is no problem, */
- /* however, as we ignore such entries in the switch below. This way we */
- /* optimize for the common case (ie. a real pc in lntentry->pc). */
- if (pc >= lntentry->pc) {
-
- /* check for special inline entries */
- /* (see doc/inlining_stacktrace.txt for details */
- if ((s4)lntentry->line < 0) {
- switch (lntentry->line) {
- case -1:
- /* begin of inlined method (ie. INLINE_END instruction) */
-
- lntinline = --lntentry; /* get entry with methodinfo * */
- lntentry--; /* skip the special entry */
- lntsize -= 2;
-
- /* search inside the inlined method */
- if (stacktrace_add_method_intern(
- stb,
- (methodinfo*) lntinline->pc,
- lntentry,
- lntsize,
- pc))
- {
- /* the inlined method contained the pc */
- assert(lntinline->line <= -3);
- stacktrace_add_entry(stb, m, (-3) - lntinline->line);
- return true;
- }
- /* pc was not in inlined method, continue search. */
- /* Entries inside the inlined method will be skipped */
- /* because their lntentry->pc is higher than pc. */
- break;
-
- case -2:
- /* end of inlined method */
- return false;
-
- /* default: is only reached for an -3-line entry after a skipped */
- /* -2 entry. We can safely ignore it and continue searching. */
- }
- }
- else {
- /* found a normal entry */
- stacktrace_add_entry(stb, m, lntentry->line);
- return true;
- }
+#if defined(ENABLE_JIT)
+# if defined(ENABLE_INTRP)
+ if (opt_intrp)
+ ra = intrp_md_stacktrace_get_returnaddress(sp, framesize);
+ else
+# endif
+ {
+ if (!code_is_leafmethod(code))
+ ra = md_stacktrace_get_returnaddress(sp, framesize);
}
- }
+#else
+ ra = intrp_md_stacktrace_get_returnaddress(sp, framesize);
+#endif
- /* not found */
- return false;
-}
+ /* Get the PV for the parent Java method. */
-/* stacktrace_add_method *******************************************************
+#if defined(ENABLE_INTRP)
+ if (opt_intrp)
+ pv = codegen_get_pv_from_pc(ra);
+ else
+#endif
+ {
+#if defined(ENABLE_JIT)
+# if defined(__SPARC_64__)
+ sp = md_get_framepointer(sp);
+ pv = md_get_pv_from_stackframe(sp);
+# else
+ pv = md_codegen_get_pv_from_pc(ra);
+# endif
+#endif
+ }
- Add stacktrace entries[1] for the given method to the stacktrace buffer.
+ /* Get the codeinfo pointer for the parent Java method. */
- IN:
- stb.........stacktracebuffer to fill
- m...........method for which entries should be created
- pv..........pv of method
- pc..........position of program counter within the method's code
+ code = code_get_codeinfo_for_pv(pv);
- OUT:
- true, if stacktrace entries were successfully created, false otherwise.
+ /* Calculate the SP for the parent Java method. */
- [1] In case of inlined methods there may be more than one stacktrace
- entry for a codegen-level method. (see doc/inlining_stacktrace.txt)
+#if defined(ENABLE_INTRP)
+ if (opt_intrp)
+ sp = *(u1 **) (sp - framesize);
+ else
+#endif
+ {
+#if defined(__I386__) || defined (__X86_64__) || defined (__M68K__)
+ sp = (void *) (((intptr_t) sp) + framesize + SIZEOF_VOID_P);
+#elif defined(__SPARC_64__)
+ /* already has the new sp */
+#else
+ sp = (void *) (((intptr_t) sp) + framesize);
+#endif
+ }
-*******************************************************************************/
+ /* If the new codeinfo pointer is NULL we reached a
+ asm_vm_call_method function. In this case we get the next
+ values from the previous stackframeinfo in the chain.
+ Otherwise the new values have been calculated before. */
-static bool stacktrace_add_method(stacktracebuffer *stb, methodinfo *m, u1 *pv,
- u1 *pc)
-{
- ptrint lntsize; /* size of line number table */
- u1 *lntstart; /* start of line number table */
- linenumbertable_entry *lntentry; /* points to last entry in the table */
+ if (code == NULL) {
+ prevsfi = tmpsfi->prev;
- /* get size of line number table */
+ /* If the previous stackframeinfo in the chain is NULL we
+ reached the top of the stacktrace and return false. */
- lntsize = *((ptrint *) (pv + LineNumberTableSize));
- lntstart = *((u1 **) (pv + LineNumberTableStart));
+ if (prevsfi == NULL)
+ return false;
- /* Subtract the size of the line number entry of the structure,
- since the line number table start points to the pc. */
+ /* Fill the temporary stackframeinfo with the new values. */
- lntentry = (linenumbertable_entry *) (lntstart - SIZEOF_VOID_P);
+ tmpsfi->code = prevsfi->code;
+ tmpsfi->pv = prevsfi->pv;
+ tmpsfi->sp = prevsfi->sp;
+ tmpsfi->ra = prevsfi->ra;
+ tmpsfi->xpc = prevsfi->xpc;
- /* check if we are before the actual JIT code */
+ /* Set the previous stackframe info of the temporary one to
+ the next in the chain. */
- if ((ptrint) pc < (ptrint) m->entrypoint) {
- dolog("Current PC before start of code: %p < %p", pc, m->entrypoint);
- assert(0);
+ tmpsfi->prev = prevsfi->prev;
+ }
+ else {
+ /* Store the new values in the stackframeinfo. NOTE: We
+ subtract 1 from the RA to get the XPC, because the RA
+ points to the instruction after the call instruction. */
+
+ tmpsfi->code = code;
+ tmpsfi->pv = pv;
+ tmpsfi->sp = sp;
+ tmpsfi->ra = ra;
+ tmpsfi->xpc = (void *) (((intptr_t) ra) - 1);
}
-
- /* search the line number table */
-
- if (stacktrace_add_method_intern(stb, m, lntentry, lntsize, pc))
- return true;
-
- /* If we get here, just add the entry with line number 0. */
-
- stacktrace_add_entry(stb, m, 0);
return true;
}
/* stacktrace_create ***********************************************************
Generates a stacktrace from the thread passed into a
- stacktracebuffer. The stacktracebuffer is allocated on the GC
- heap.
+ stacktracebuffer. The stacktracebuffer is allocated on the
+ dump memory.
+
+ NOTE: The first element in the stackframe chain must always be a
+ native stackframeinfo (e.g. VMThrowable.fillInStackTrace() is
+ a native function).
+
+ RETURN VALUE:
+ pointer to the stacktracebuffer, or
+ NULL if there is no stacktrace available for the
+ given thread.
*******************************************************************************/
-stacktracebuffer *stacktrace_create(threadobject* thread)
+stacktracebuffer *stacktrace_create(stackframeinfo_t *sfi)
{
stacktracebuffer *stb;
- stacktracebuffer *gcstb;
- s4 dumpsize;
- stackframeinfo *sfi;
- methodinfo *m;
- u1 *pv;
- u1 *sp;
- u4 framesize;
- u1 *ra;
- u1 *xpc;
-
- /* mark start of dump memory area */
+ stackframeinfo_t tmpsfi;
+ bool skip_fillInStackTrace;
+ bool skip_init;
- dumpsize = dump_size();
+ skip_fillInStackTrace = true;
+ skip_init = true;
- /* prevent compiler warnings */
-
- pv = NULL;
- sp = NULL;
- ra = NULL;
-
- /* create a stacktracebuffer in dump memory */
+ /* Create a stacktracebuffer in dump memory. */
stb = DNEW(stacktracebuffer);
stb->capacity = STACKTRACE_CAPACITY_DEFAULT;
stb->used = 0;
- stb->entries = DMNEW(stacktrace_entry, STACKTRACE_CAPACITY_DEFAULT);
-
- /* The first element in the stackframe chain must always be a
- native stackframeinfo (VMThrowable.fillInStackTrace is a native
- function). */
-
-#if defined(USE_THREADS)
- sfi = thread->info._stackframeinfo;
-#else
- sfi = _no_threads_stackframeinfo;
-#endif
-
-#define PRINTMETHODS 0
-#if PRINTMETHODS
- printf("\n\nfillInStackTrace start:\n");
- fflush(stdout);
-#endif
-
- /* Loop while we have a method pointer (asm_calljavafunction has
- NULL) or there is a stackframeinfo in the chain. */
-
- m = NULL;
-
- while (m || sfi) {
- /* m == NULL should only happen for the first time and inline
- stackframe infos, like from the exception stubs or the
- patcher wrapper. */
-
- if (m == NULL) {
- /* for native stub stackframe infos, pv is always NULL */
-
- if (sfi->pv == NULL) {
- /* get methodinfo, sp and ra from the current stackframe info */
-
- m = sfi->method;
- sp = sfi->sp; /* sp of parent Java function */
- ra = sfi->ra;
-
- if (m)
- stacktrace_add_entry(stb, m, 0);
-
-#if PRINTMETHODS
- printf("ra=%p sp=%p, ", ra, sp);
- method_print(m);
- printf(": native stub\n");
- fflush(stdout);
-#endif
- /* This is an native stub stackframe info, so we can
- get the parent pv from the return address
- (ICMD_INVOKE*). */
-
-#if defined(ENABLE_INTRP)
- if (opt_intrp)
- pv = codegen_findmethod(ra);
- else
-#endif
- {
-#if defined(ENABLE_JIT)
- pv = md_codegen_findmethod(ra);
+#if !defined(NDEBUG)
+ if (opt_DebugStackTrace) {
+ printf("\n\n---> stacktrace creation start (fillInStackTrace):\n");
+ fflush(stdout);
+ }
#endif
- }
-
- /* get methodinfo pointer from parent data segment */
- m = *((methodinfo **) (pv + MethodPointer));
+ /* Put the data from the stackframeinfo into a temporary one. */
- } else {
- /* Inline stackframe infos are special: they have a
- xpc of the actual exception position and the return
- address saved since an inline stackframe info can
- also be in a leaf method (no return address saved
- on stack!!!). ATTENTION: This one is also for
- hardware exceptions!!! */
-
- /* get methodinfo, sp and ra from the current stackframe info */
+ /* XXX This is not correct, but a workaround for threads-dump for
+ now. */
+/* assert(sfi != NULL); */
+ if (sfi == NULL)
+ return NULL;
- m = sfi->method; /* m == NULL */
- pv = sfi->pv; /* pv of parent Java function */
- sp = sfi->sp; /* sp of parent Java function */
- ra = sfi->ra; /* ra of parent Java function */
- xpc = sfi->xpc; /* actual exception position */
+ tmpsfi.code = sfi->code;
+ tmpsfi.pv = sfi->pv;
+ tmpsfi.sp = sfi->sp;
+ tmpsfi.ra = sfi->ra;
+ tmpsfi.xpc = sfi->xpc;
-#if PRINTMETHODS
- printf("ra=%p sp=%p, ", ra, sp);
- printf("NULL: inline stub\n");
- fflush(stdout);
-#endif
+ /* Initially set the previous stackframe info of the temporary one
+ to the next in the chain. */
- /* get methodinfo from current Java method */
+ tmpsfi.prev = sfi->prev;
- m = *((methodinfo **) (pv + MethodPointer));
+ /* Iterate till we're done. */
- /* if m == NULL, this is a asm_calljavafunction call */
+ do {
+#if !defined(NDEBUG)
+ /* Print current method information. */
- if (m != NULL) {
-#if PRINTMETHODS
- printf("ra=%p sp=%p, ", ra, sp);
- method_print(m);
- printf(": inline stub parent");
- fflush(stdout);
-#endif
-
-#if defined(ENABLE_INTRP)
- if (!opt_intrp) {
+ if (opt_DebugStackTrace) {
+ log_start();
+ log_print("[stacktrace: method=%p, pv=%p, sp=%p, ra=%p, xpc=%p, method=",
+ tmpsfi.code->m, tmpsfi.pv, tmpsfi.sp, tmpsfi.ra,
+ tmpsfi.xpc);
+ method_print(tmpsfi.code->m);
+ log_print("]");
+ log_finish();
+ }
#endif
- /* add the method to the stacktrace */
-
- stacktrace_add_method(stb, m, pv, (u1 *) ((ptrint) xpc));
+ /* This logic is taken from
+ hotspot/src/share/vm/classfile/javaClasses.cpp
+ (java_lang_Throwable::fill_in_stack_trace). */
- /* get the current stack frame size */
+ if (skip_fillInStackTrace == true) {
+ /* Check "fillInStackTrace" only once, so we negate the
+ flag after the first time check. */
- framesize = *((u4 *) (pv + FrameSize));
+#if defined(WITH_CLASSPATH_GNU)
+ /* For GNU Classpath we also need to skip
+ VMThrowable.fillInStackTrace(). */
-#if PRINTMETHODS
- printf(", framesize=%d\n", framesize);
- fflush(stdout);
+ if ((tmpsfi.code->m->class == class_java_lang_VMThrowable) &&
+ (tmpsfi.code->m->name == utf_fillInStackTrace))
+ continue;
#endif
- /* set stack pointer to stackframe of parent Java */
- /* function of the current Java function */
-
-#if defined(__I386__) || defined (__X86_64__)
- sp += framesize + SIZEOF_VOID_P;
-#else
- sp += framesize;
-#endif
+ skip_fillInStackTrace = false;
- /* get data segment and methodinfo pointer from parent */
- /* method */
+ if (tmpsfi.code->m->name == utf_fillInStackTrace)
+ continue;
+ }
-#if defined(ENABLE_JIT)
- pv = md_codegen_findmethod(ra);
-#endif
+ /* Skip <init> methods of the exceptions klass. If there is
+ <init> methods that belongs to a superclass of the
+ exception we are going to skipping them in stack trace. */
- m = *((methodinfo **) (pv + MethodPointer));
+ if (skip_init == true) {
+ if (tmpsfi.code->m->name == utf_init) {
+/* throwable->is_a(method->method_holder())) { */
+ continue;
+ }
+ else {
+ /* If no "Throwable.init()" method found, we stop
+ checking it next time. */
-#if defined(ENABLE_INTRP)
- }
-#endif
- }
-#if PRINTMETHODS
- else {
- printf("ra=%p sp=%p, ", ra, sp);
- printf("asm_calljavafunction\n");
- fflush(stdout);
- }
-#endif
+ skip_init = false;
}
+ }
- /* get previous stackframeinfo in the chain */
+ /* Add this method to the stacktrace. */
- sfi = sfi->prev;
+ stb = stacktrace_method_add(stb, &tmpsfi);
+ } while (stacktrace_stack_walk(&tmpsfi) == true);
- } else {
-#if PRINTMETHODS
- printf("ra=%p sp=%p, ", ra, sp);
- method_print(m);
- printf(": JIT");
- fflush(stdout);
+#if !defined(NDEBUG)
+ if (opt_DebugStackTrace) {
+ printf("---> stacktrace creation finished.\n\n");
+ fflush(stdout);
+ }
#endif
- /* JIT method found, add it to the stacktrace (we subtract
- 1 from the return address since it points the the
- instruction after call). */
+ /* return the stacktracebuffer */
- stacktrace_add_method(stb, m, pv, (u1 *) ((ptrint) ra) - 1);
+ if (stb->used == 0)
+ return NULL;
+ else
+ return stb;
+}
- /* get the current stack frame size */
- framesize = *((u4 *) (pv + FrameSize));
+/* stacktrace_fillInStackTrace *************************************************
-#if PRINTMETHODS
- printf(", framesize=%d\n", framesize);
- fflush(stdout);
-#endif
+ Generate a stacktrace from the current thread for
+ java.lang.VMThrowable.fillInStackTrace.
- /* get return address of current stack frame */
+*******************************************************************************/
-#if defined(ENABLE_JIT)
-# if defined(ENABLE_INTRP)
- if (opt_intrp)
- ra = intrp_md_stacktrace_get_returnaddress(sp, framesize);
- else
-# endif
- ra = md_stacktrace_get_returnaddress(sp, framesize);
-#else
- ra = intrp_md_stacktrace_get_returnaddress(sp, framesize);
-#endif
+java_handle_bytearray_t *stacktrace_fillInStackTrace(void)
+{
+ stacktracebuffer *stb;
+ java_handle_bytearray_t *ba;
+ s4 ba_size;
+ s4 dumpsize;
+ CYCLES_STATS_DECLARE_AND_START_WITH_OVERHEAD
- /* get data segment and methodinfo pointer from parent method */
+ /* mark start of dump memory area */
-#if defined(ENABLE_INTRP)
- if (opt_intrp)
- pv = codegen_findmethod(ra);
- else
-#endif
- {
-#if defined(ENABLE_JIT)
- pv = md_codegen_findmethod(ra);
-#endif
- }
+ dumpsize = dump_size();
- m = *((methodinfo **) (pv + MethodPointer));
+ /* create a stacktrace from the current thread */
- /* walk the stack */
+ stb = stacktrace_create(STACKFRAMEINFO);
-#if defined(ENABLE_INTRP)
- if (opt_intrp)
- sp = *(u1 **) (sp - framesize);
- else
-#endif
- {
-#if defined(__I386__) || defined (__X86_64__)
- sp += framesize + SIZEOF_VOID_P;
-#else
- sp += framesize;
-#endif
- }
- }
- }
+ if (stb == NULL)
+ goto return_NULL;
/* allocate memory from the GC heap and copy the stacktrace buffer */
+ /* ATTENTION: use a bytearray for this to not confuse the GC */
- gcstb = GCNEW(stacktracebuffer);
-
+ ba_size = sizeof(stacktracebuffer) +
+ sizeof(stacktrace_entry) * stb->used -
+ sizeof(stacktrace_entry) * STACKTRACE_CAPACITY_DEFAULT;
+ ba = builtin_newarray_byte(ba_size);
- gcstb->capacity = stb->capacity;
- gcstb->used = stb->used;
- gcstb->entries = GCMNEW(stacktrace_entry, stb->used);
+ if (ba == NULL)
+ goto return_NULL;
- MCOPY(gcstb->entries, stb->entries, stacktrace_entry, stb->used);
-
- /* just to be sure */
-
- stb = NULL;
- assert(gcstb != NULL);
+ MCOPY(LLNI_array_data(ba), stb, u1, ba_size);
/* release dump memory */
dump_release(dumpsize);
- /* return the stacktracebuffer */
-
- return gcstb;
-}
-
+ CYCLES_STATS_END_WITH_OVERHEAD(stacktrace_fillInStackTrace,
+ stacktrace_overhead)
+ return ba;
-/* stacktrace_fillInStackTrace *************************************************
-
- Generate a stacktrace from the current thread for
- java.lang.VMThrowable.fillInStackTrace.
-
-*******************************************************************************/
-
-stacktracebuffer *stacktrace_fillInStackTrace(void)
-{
- stacktracebuffer *stb;
-
- /* create a stacktrace from the current thread */
+return_NULL:
+ dump_release(dumpsize);
- stb = stacktrace_create(THREADOBJECT);
+ CYCLES_STATS_END_WITH_OVERHEAD(stacktrace_fillInStackTrace,
+ stacktrace_overhead)
- return stb;
+ return NULL;
}
Creates a Class context array.
+ RETURN VALUE:
+ the array of java.lang.Class objects, or
+ NULL if an exception has been thrown
+
*******************************************************************************/
-java_objectarray *stacktrace_getClassContext(void)
+java_handle_objectarray_t *stacktrace_getClassContext(void)
{
- stacktracebuffer *stb;
- stacktrace_entry *ste;
- java_objectarray *oa;
- s4 oalength;
- s4 i;
+ stacktracebuffer *stb;
+ stacktrace_entry *ste;
+ java_handle_objectarray_t *oa;
+ s4 oalength;
+ s4 i;
+ s4 dumpsize;
+ CYCLES_STATS_DECLARE_AND_START
+
+ /* mark start of dump memory area */
+
+ dumpsize = dump_size();
/* create a stacktrace for the current thread */
- stb = stacktrace_create(THREADOBJECT);
+ stb = stacktrace_create(STACKFRAMEINFO);
+
+ if (stb == NULL)
+ goto return_NULL;
/* calculate the size of the Class array */
if (stb->entries[i].method != NULL)
oalength++;
+ /* The first entry corresponds to the method whose implementation */
+ /* calls stacktrace_getClassContext. We remove that entry. */
+
ste = &(stb->entries[0]);
ste++;
oalength--;
- /* XXX document me */
-
- if (oalength > 0) {
- if (ste->method &&
- (ste->method->class == class_java_lang_SecurityManager)) {
- ste++;
- oalength--;
- }
- }
-
/* allocate the Class array */
oa = builtin_anewarray(oalength, class_java_lang_Class);
-
if (!oa)
- return NULL;
+ goto return_NULL;
/* fill the Class array from the stacktracebuffer */
continue;
}
- oa->data[i] = (java_objectheader *) ste->method->class;
+ LLNI_array_direct(oa, i) = (java_object_t *) ste->method->class;
}
+ /* release dump memory */
+
+ dump_release(dumpsize);
+
+ CYCLES_STATS_END(stacktrace_getClassContext)
+
return oa;
+
+return_NULL:
+ dump_release(dumpsize);
+
+ CYCLES_STATS_END(stacktrace_getClassContext)
+
+ return NULL;
}
-/* stacktrace_getCurrentClassLoader ********************************************
+/* stacktrace_getCurrentClass **************************************************
- Find the current class loader by walking the stack trace. The first
- non-NULL (ie. non-bootstrap) class loader found -- starting with the
- innermost activation record -- is returned. If no class loader is
- found, NULL is returned.
+ Find the current class by walking the stack trace.
+
+ Quote from the JNI documentation:
+
+ In the Java 2 Platform, FindClass locates the class loader
+ associated with the current native method. If the native code
+ belongs to a system class, no class loader will be
+ involved. Otherwise, the proper class loader will be invoked to
+ load and link the named class. When FindClass is called through the
+ Invocation Interface, there is no current native method or its
+ associated class loader. In that case, the result of
+ ClassLoader.getBaseClassLoader is used."
*******************************************************************************/
-java_objectheader *stacktrace_getCurrentClassLoader(void)
+#if defined(ENABLE_JAVASE)
+classinfo *stacktrace_getCurrentClass(void)
{
stacktracebuffer *stb;
stacktrace_entry *ste;
methodinfo *m;
- java_objectheader *cl;
s4 i;
+ s4 dumpsize;
+ CYCLES_STATS_DECLARE_AND_START
- cl = NULL;
+ /* mark start of dump memory area */
+
+ dumpsize = dump_size();
/* create a stacktrace for the current thread */
- stb = stacktrace_create(THREADOBJECT);
+ stb = stacktrace_create(STACKFRAMEINFO);
+
+ if (stb == NULL)
+ goto return_NULL; /* XXX exception: how to distinguish from normal NULL return? */
/* iterate over all stacktrace entries and find the first suitable
- classloader */
+ class */
for (i = 0, ste = &(stb->entries[0]); i < stb->used; i++, ste++) {
m = ste->method;
- if (!m)
+ if (m == NULL)
continue;
- if (m->class == class_java_security_PrivilegedAction) {
- cl = NULL;
- break;
- }
+ if (m->class == class_java_security_PrivilegedAction)
+ goto return_NULL;
+
+ if (m->class != NULL) {
+ dump_release(dumpsize);
- if (m->class->classloader) {
- cl = m->class->classloader;
- break;
+ CYCLES_STATS_END(stacktrace_getCurrentClass)
+
+ return m->class;
}
}
- /* return the classloader */
+ /* no Java method found on the stack */
- return cl;
+return_NULL:
+ dump_release(dumpsize);
+
+ CYCLES_STATS_END(stacktrace_getCurrentClass)
+
+ return NULL;
}
+#endif /* ENABLE_JAVASE */
/* stacktrace_getStack *********************************************************
Create a 2-dimensional array for java.security.VMAccessControler.
+ RETURN VALUE:
+ the arrary, or
+ NULL if an exception has been thrown
+
*******************************************************************************/
-java_objectarray *stacktrace_getStack(void)
+#if defined(ENABLE_JAVASE)
+java_handle_objectarray_t *stacktrace_getStack(void)
{
- stacktracebuffer *stb;
- stacktrace_entry *ste;
- java_objectarray *oa;
- java_objectarray *classes;
- java_objectarray *methodnames;
- classinfo *c;
- java_lang_String *str;
- s4 i;
+ stacktracebuffer *stb;
+ stacktrace_entry *ste;
+ java_handle_objectarray_t *oa;
+ java_handle_objectarray_t *classes;
+ java_handle_objectarray_t *methodnames;
+ classinfo *c;
+ java_handle_t *string;
+ s4 i;
+ s4 dumpsize;
+ CYCLES_STATS_DECLARE_AND_START
+
+ /* mark start of dump memory area */
+
+ dumpsize = dump_size();
/* create a stacktrace for the current thread */
- stb = stacktrace_create(THREADOBJECT);
+ stb = stacktrace_create(STACKFRAMEINFO);
+
+ if (stb == NULL)
+ goto return_NULL;
/* get the first stacktrace entry */
oa = builtin_anewarray(2, arrayclass_java_lang_Object);
- if (!oa)
- return NULL;
+ if (oa == NULL)
+ goto return_NULL;
classes = builtin_anewarray(stb->used, class_java_lang_Class);
- if (!classes)
- return NULL;
+ if (classes == NULL)
+ goto return_NULL;
methodnames = builtin_anewarray(stb->used, class_java_lang_String);
- if (!methodnames)
- return NULL;
+ if (methodnames == NULL)
+ goto return_NULL;
/* set up the 2-dimensional array */
- oa->data[0] = (java_objectheader *) classes;
- oa->data[1] = (java_objectheader *) methodnames;
+ array_objectarray_element_set(oa, 0, (java_handle_t *) classes);
+ array_objectarray_element_set(oa, 1, (java_handle_t *) methodnames);
/* iterate over all stacktrace entries */
for (i = 0, ste = &(stb->entries[0]); i < stb->used; i++, ste++) {
c = ste->method->class;
- classes->data[i] = (java_objectheader *) c;
- str = javastring_new(ste->method->name);
+ LLNI_array_direct(classes, i) = (java_object_t *) c;
- if (!str)
- return NULL;
+ string = javastring_new(ste->method->name);
- methodnames->data[i] = (java_objectheader *) str;
+ if (string == NULL)
+ goto return_NULL;
+
+ array_objectarray_element_set(methodnames, i, string);
}
/* return the 2-dimensional array */
+ dump_release(dumpsize);
+
+ CYCLES_STATS_END(stacktrace_getStack)
+
return oa;
+
+return_NULL:
+ dump_release(dumpsize);
+
+ CYCLES_STATS_END(stacktrace_getStack)
+
+ return NULL;
}
+#endif /* ENABLE_JAVASE */
/* stacktrace_print_trace_from_buffer ******************************************
*******************************************************************************/
-static void stacktrace_print_trace_from_buffer(stacktracebuffer *stb)
+void stacktrace_print_trace_from_buffer(stacktracebuffer *stb)
{
stacktrace_entry *ste;
methodinfo *m;
m = ste->method;
printf("\tat ");
- utf_display_classname(m->class->name);
+ utf_display_printable_ascii_classname(m->class->name);
printf(".");
- utf_display(m->name);
- utf_display(m->descriptor);
+ utf_display_printable_ascii(m->name);
+ utf_display_printable_ascii(m->descriptor);
if (m->flags & ACC_NATIVE) {
puts("(Native Method)");
} else {
printf("(");
- utf_display(m->class->sourcefile);
+ utf_display_printable_ascii(m->class->sourcefile);
printf(":%d)\n", (u4) ste->linenumber);
}
}
}
-/* stacktrace_dump_trace *******************************************************
-
- This method is call from signal_handler_sigusr1 to dump the
- stacktrace of the current thread to stdout.
-
-*******************************************************************************/
-
-void stacktrace_dump_trace(void)
-{
- stacktracebuffer *stb;
-
-#if 0
- /* get methodinfo pointer from data segment */
-
- m = *((methodinfo **) (pv + MethodPointer));
-
- /* get current stackframe info pointer */
-
- psfi = STACKFRAMEINFO;
-
- /* fill new stackframe info structure */
-
- sfi->prev = *psfi;
- sfi->method = NULL;
- sfi->pv = NULL;
- sfi->sp = sp;
- sfi->ra = ra;
-
- /* store new stackframe info pointer */
-
- *psfi = sfi;
-#endif
-
- /* create a stacktrace for the current thread */
-
- stb = stacktrace_create(THREADOBJECT);
-
- /* print stacktrace */
-
- if (stb) {
- stacktrace_print_trace_from_buffer(stb);
-
- } else {
- puts("\t<<No stacktrace available>>");
- fflush(stdout);
- }
-}
-
-
/* stacktrace_print_trace ******************************************************
Print the stacktrace of a given exception. More or less a wrapper
*******************************************************************************/
-void stacktrace_print_trace(java_objectheader *xptr)
+void stacktrace_print_trace(java_handle_t *xptr)
{
- java_lang_Throwable *t;
- java_lang_VMThrowable *vmt;
- stacktracebuffer *stb;
+ java_lang_Throwable *t;
+#if defined(WITH_CLASSPATH_GNU)
+ java_lang_VMThrowable *vmt;
+#endif
+ java_handle_bytearray_t *ba;
+ stacktracebuffer *stb;
t = (java_lang_Throwable *) xptr;
/* now print the stacktrace */
- vmt = t->vmState;
- stb = (stacktracebuffer *) vmt->vmData;
+#if defined(WITH_CLASSPATH_GNU)
+ LLNI_field_get_ref(t, vmState, vmt);
+ LLNI_field_get_ref(vmt, vmData, ba);
+#elif defined(WITH_CLASSPATH_SUN) || defined(WITH_CLASSPATH_CLDC1_1)
+ LLNI_field_get_ref(t, backtrace, ba);
+#else
+# error unknown classpath configuration
+#endif
+
+ assert(ba);
+ stb = (stacktracebuffer *) LLNI_array_data(ba);
stacktrace_print_trace_from_buffer(stb);
}
+#if defined(ENABLE_CYCLES_STATS)
+void stacktrace_print_cycles_stats(FILE *file)
+{
+ CYCLES_STATS_PRINT_OVERHEAD(stacktrace_overhead,file);
+ CYCLES_STATS_PRINT(stacktrace_fillInStackTrace,file);
+ CYCLES_STATS_PRINT(stacktrace_getClassContext ,file);
+ CYCLES_STATS_PRINT(stacktrace_getCurrentClass ,file);
+ CYCLES_STATS_PRINT(stacktrace_getStack ,file);
+}
+#endif
+
+
/*
* These are local overrides for various environment variables in Emacs.
* Please do not remove this and leave it at the end of the file, where
projects / cacao.git / blobdiff