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dbghelp: Set the correct word size when unwinding stacks with Dwarf debug info.

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This commit is contained in:
Eric Pouech 2010-06-27 18:55:09 +02:00 committed by Alexandre Julliard
parent e9e6845d66
commit b38cddf484
1 changed files with 10 additions and 8 deletions
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18
dlls/dbghelp/dwarf.c
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@ -2756,7 +2756,8 @@ static void copy_context_reg(CONTEXT *dstcontext, ULONG_PTR dwregdst, CONTEXT* s
memcpy(ptrdst, ptrsrc, szdst);
}
static ULONG_PTR eval_expression(struct cpu_stack_walk* csw, const unsigned char* zp, CONTEXT *context)
static ULONG_PTR eval_expression(struct module* module, struct cpu_stack_walk* csw,
const unsigned char* zp, CONTEXT *context)
{
dwarf2_traverse_context_t ctx;
ULONG_PTR reg, sz, tmp, stack[64];
@ -2767,7 +2768,7 @@ static ULONG_PTR eval_expression(struct cpu_stack_walk* csw, const unsigned char
ctx.end_data = zp + 4;
len = dwarf2_leb128_as_unsigned(&ctx);
ctx.end_data = ctx.data + len;
ctx.word_size = 8; /* FIXME: wordsize!! */
ctx.word_size = module->format_info[DFI_DWARF]->u.dwarf2_info->word_size;
while (ctx.data < ctx.end_data)
{
@ -2866,7 +2867,8 @@ static ULONG_PTR eval_expression(struct cpu_stack_walk* csw, const unsigned char
return stack[sp];
}
static void apply_frame_info(struct cpu_stack_walk* csw, CONTEXT *context, struct frame_info *info, ULONG_PTR* cfa)
static void apply_frame_info(struct module* module, struct cpu_stack_walk* csw,
CONTEXT *context, struct frame_info *info, ULONG_PTR* cfa)
{
unsigned int i;
ULONG_PTR value;
@ -2875,10 +2877,10 @@ static void apply_frame_info(struct cpu_stack_walk* csw, CONTEXT *context, struc
switch (info->cfa_rule)
{
case RULE_EXPRESSION:
*cfa = *(ULONG_PTR*)eval_expression(csw, (const unsigned char*)info->cfa_offset, context);
*cfa = *(ULONG_PTR*)eval_expression(module, csw, (const unsigned char*)info->cfa_offset, context);
break;
case RULE_VAL_EXPRESSION:
*cfa = eval_expression(csw, (const unsigned char*)info->cfa_offset, context);
*cfa = eval_expression(module, csw, (const unsigned char*)info->cfa_offset, context);
break;
default:
*cfa = get_context_reg(context, info->cfa_reg) + info->cfa_offset;
@ -2901,11 +2903,11 @@ static void apply_frame_info(struct cpu_stack_walk* csw, CONTEXT *context, struc
copy_context_reg(&new_context, i, context, info->regs[i]);
break;
case RULE_EXPRESSION:
value = eval_expression(csw, (const unsigned char*)info->regs[i], context);
value = eval_expression(module, csw, (const unsigned char*)info->regs[i], context);
set_context_reg(csw, &new_context, i, value, TRUE);
break;
case RULE_VAL_EXPRESSION:
value = eval_expression(csw, (const unsigned char*)info->regs[i], context);
value = eval_expression(module, csw, (const unsigned char*)info->regs[i], context);
set_context_reg(csw, &new_context, i, value, FALSE);
break;
}
@ -2973,7 +2975,7 @@ BOOL dwarf2_virtual_unwind(struct cpu_stack_walk* csw, ULONG_PTR ip, CONTEXT* co
if (end) fde_ctx.data = end;
execute_cfa_instructions(&fde_ctx, ip, &info);
apply_frame_info(csw, context, &info, cfa);
apply_frame_info(pair.effective, csw, context, &info, cfa);
return TRUE;
}