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Bug 490908 - js_DumpStackFrame. r=Waldo.

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This commit is contained in:
Jason Orendorff 2009-05-20 10:10:03 -05:00
parent 91dfa19e20
commit aa37602c02
2 changed files with 116 additions and 2 deletions
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117
js/src/jsobj.cpp
View File

@ -6038,7 +6038,7 @@ dumpValue(jsval val)
JS_FRIEND_API(void)
js_DumpValue(jsval val)
{
fprintf(stderr, "jsval %d (%p) = ", (int) val, (void *) val);
fprintf(stderr, "jsval %p = ", (void *) val);
dumpValue(val);
fputc('\n', stderr);
}
@ -6046,7 +6046,7 @@ js_DumpValue(jsval val)
JS_FRIEND_API(void)
js_DumpId(jsid id)
{
fprintf(stderr, "id %d (%p) = ", (int) id, (void *) id);
fprintf(stderr, "jsid %p = ", (void *) id);
dumpValue(ID_TO_VALUE(id));
fputc('\n', stderr);
}
@ -6159,4 +6159,117 @@ js_DumpObject(JSObject *obj)
fputc('\n', stderr);
}
static void
MaybeDumpObject(const char *name, JSObject *obj)
{
if (obj) {
fprintf(stderr, " %s: ", name);
dumpValue(OBJECT_TO_JSVAL(obj));
fputc('\n', stderr);
}
}
JS_FRIEND_API(void)
js_DumpStackFrame(JSStackFrame *fp)
{
jsval *sp = NULL;
for (; fp; fp = fp->down) {
fprintf(stderr, "JSStackFrame at %p\n", (void *) fp);
if (fp->callee)
dumpValue(OBJECT_TO_JSVAL(fp->callee));
else
fprintf(stderr, "global frame, no callee");
fputc('\n', stderr);
if (fp->script)
fprintf(stderr, "file %s line %u\n", fp->script->filename, (unsigned) fp->script->lineno);
if (fp->regs) {
if (!fp->regs->pc) {
fprintf(stderr, "*** regs && !regs->pc, skipping frame\n\n");
continue;
}
if (!fp->script) {
fprintf(stderr, "*** regs && !script, skipping frame\n\n");
continue;
}
jsbytecode *pc = fp->regs->pc;
sp = fp->regs->sp;
if (fp->imacpc) {
fprintf(stderr, " pc in imacro at %p\n called from ", pc);
pc = fp->imacpc;
} else {
fprintf(stderr, " ");
}
fprintf(stderr, "pc = %p\n", pc);
fprintf(stderr, " current op: %s\n", js_CodeName[*pc]);
}
if (sp && fp->slots) {
fprintf(stderr, " slots: %p\n", fp->slots);
fprintf(stderr, " sp: %p = slots + %u\n", sp, (unsigned) (sp - fp->slots));
if (sp - fp->slots < 10000) { // sanity
for (jsval *p = fp->slots; p < sp; p++) {
fprintf(stderr, " %p: ", (void *) p);
dumpValue(*p);
fputc('\n', stderr);
}
}
} else {
fprintf(stderr, " sp: %p\n", (void *) sp);
fprintf(stderr, " slots: %p\n", (void *) fp->slots);
}
fprintf(stderr, " argv: %p (argc: %u)\n", fp->argv, (unsigned) fp->argc);
MaybeDumpObject("callobj", fp->callobj);
MaybeDumpObject("argsobj", fp->argsobj);
MaybeDumpObject("varobj", fp->varobj);
MaybeDumpObject("this", fp->thisp);
fprintf(stderr, " rval: ");
dumpValue(fp->rval);
fputc('\n', stderr);
fprintf(stderr, " flags:");
if (fp->flags == 0)
fprintf(stderr, " none");
if (fp->flags & JSFRAME_CONSTRUCTING)
fprintf(stderr, " constructing");
if (fp->flags & JSFRAME_COMPUTED_THIS)
fprintf(stderr, " computed_this");
if (fp->flags & JSFRAME_ASSIGNING)
fprintf(stderr, " assigning");
if (fp->flags & JSFRAME_DEBUGGER)
fprintf(stderr, " debugger");
if (fp->flags & JSFRAME_EVAL)
fprintf(stderr, " eval");
if (fp->flags & JSFRAME_ROOTED_ARGV)
fprintf(stderr, " rooted_argv");
if (fp->flags & JSFRAME_YIELDING)
fprintf(stderr, " yielding");
if (fp->flags & JSFRAME_ITERATOR)
fprintf(stderr, " iterator");
if (fp->flags & JSFRAME_GENERATOR)
fprintf(stderr, " generator");
if ((fp->flags >> JSFRAME_OVERRIDE_SHIFT) & JS_BITMASK(JSFRAME_OVERRIDE_BITS))
fprintf(stderr, " override_bits(0x%x)", (fp->flags >> JSFRAME_OVERRIDE_SHIFT) & JS_BITMASK(JSFRAME_OVERRIDE_BITS));
fputc('\n', stderr);
if (fp->scopeChain)
fprintf(stderr, " scopeChain: (JSObject *) %p\n", (void *) fp->scopeChain);
if (fp->blockChain)
fprintf(stderr, " blockChain: (JSObject *) %p\n", (void *) fp->blockChain);
if (fp->sharpDepth)
fprintf(stderr, " sharpDepth: %u\n", (unsigned) fp->sharpDepth);
if (fp->xmlNamespace)
fprintf(stderr, " xmlNamespace: (JSObject *) %p\n", fp->xmlNamespace);
if (fp->dormantNext)
fprintf(stderr, " dormantNext: (JSStackFrame *) %p\n", fp->dormantNext);
if (fp->displaySave)
fprintf(stderr, " displaySave: (JSStackFrame *) %p\n", fp->displaySave);
fputc('\n', stderr);
}
}
#endif

1
js/src/jsobj.h
View File

@ -861,6 +861,7 @@ JS_FRIEND_API(void) js_DumpAtom(JSAtom *atom);
JS_FRIEND_API(void) js_DumpValue(jsval val);
JS_FRIEND_API(void) js_DumpId(jsid id);
JS_FRIEND_API(void) js_DumpObject(JSObject *obj);
JS_FRIEND_API(void) js_DumpStackFrame(JSStackFrame *fp);
#endif
JS_END_EXTERN_C