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jscript: Added new debug channel printing details and backtrace of unwinded exceptions. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2017-05-05 17:22:57 +02:00 committed by Alexandre Julliard
parent 2bb84582eb
commit 59c39fa1f0
1 changed files with 59 additions and 2 deletions
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61
dlls/jscript/engine.c
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@ -28,6 +28,7 @@
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(jscript);
WINE_DECLARE_DEBUG_CHANNEL(jscript_except);
static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0};
static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0};
@ -2659,6 +2660,40 @@ static void pop_call_frame(script_ctx_t *ctx)
heap_free(frame);
}
static void print_backtrace(script_ctx_t *ctx)
{
unsigned depth = 0, i;
call_frame_t *frame;
for(frame = ctx->call_ctx; frame; frame = frame->prev_frame) {
TRACE_(jscript_except)("%u\t", depth);
depth++;
if(frame->this_obj && frame->this_obj != to_disp(ctx->global) && frame->this_obj != ctx->host_global)
TRACE_(jscript_except)("%p->", frame->this_obj);
TRACE_(jscript_except)("%s(", frame->function->name ? debugstr_w(frame->function->name) : "[unnamed]");
if(frame->base_scope && frame->base_scope->frame) {
for(i=0; i < frame->argc; i++) {
if(i < frame->function->param_cnt)
TRACE_(jscript_except)("%s%s=%s", i ? ", " : "",
debugstr_w(frame->function->params[i]),
debugstr_jsval(ctx->stack[local_off(frame, -i-1)]));
else
TRACE_(jscript_except)("%s%s", i ? ", " : "",
debugstr_jsval(ctx->stack[local_off(frame, -i-1)]));
}
}else {
TRACE_(jscript_except)("[detached frame]");
}
TRACE_(jscript_except)(")\n");
if(!(frame->flags & EXEC_RETURN_TO_INTERP)) {
TRACE_(jscript_except)("%u\t[native code]\n", depth);
depth++;
}
}
}
static HRESULT unwind_exception(script_ctx_t *ctx, HRESULT exception_hres)
{
except_frame_t *except_frame;
@ -2667,6 +2702,30 @@ static HRESULT unwind_exception(script_ctx_t *ctx, HRESULT exception_hres)
unsigned catch_off;
HRESULT hres;
TRACE("%08x\n", exception_hres);
if(TRACE_ON(jscript_except)) {
jsdisp_t *error_obj;
jsval_t msg;
static const WCHAR messageW[] = {'m','e','s','s','a','g','e',0};
TRACE_(jscript_except)("Exception %08x %s", exception_hres, debugstr_jsval(ctx->ei.val));
if(jsval_type(ctx->ei.val) == JSV_OBJECT) {
error_obj = to_jsdisp(get_object(ctx->ei.val));
if(error_obj) {
hres = jsdisp_propget_name(error_obj, messageW, &msg);
if(SUCCEEDED(hres)) {
TRACE_(jscript_except)(" (message %s)", debugstr_jsval(msg));
jsval_release(msg);
}
}
}
TRACE_(jscript_except)(" in:\n");
print_backtrace(ctx);
}
for(frame = ctx->call_ctx; !frame->except_frame; frame = ctx->call_ctx) {
DWORD flags;
@ -2727,8 +2786,6 @@ static HRESULT enter_bytecode(script_ctx_t *ctx, jsval_t *r)
op = frame->bytecode->instrs[frame->ip].op;
hres = op_funcs[op](ctx);
if(FAILED(hres)) {
TRACE("EXCEPTION %08x\n", hres);
hres = unwind_exception(ctx, hres);
if(FAILED(hres))
return hres;