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dbghelp: Add support for namespace support out of dwarf debug format.

This commit is contained in:
Eric Pouech 2011-03-08 21:30:56 +01:00 committed by Alexandre Julliard
parent 770e3b5ddf
commit 0035d5df3f
1 changed files with 67 additions and 4 deletions
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71
dlls/dbghelp/dwarf.c
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@ -192,6 +192,7 @@ typedef struct dwarf2_parse_context_s
unsigned long load_offset;
unsigned long ref_offset;
struct symt* symt_cache[sc_num]; /* void, int1, int2, int4 */
char* cpp_name;
} dwarf2_parse_context_t;
/* stored in the dbghelp's module internal structure for later reuse */
@ -945,6 +946,41 @@ static struct symt* dwarf2_lookup_type(dwarf2_parse_context_t* ctx,
return NULL;
}
static const char* dwarf2_get_cpp_name(dwarf2_parse_context_t* ctx, dwarf2_debug_info_t* di, const char* name)
{
char* last;
struct attribute diname;
if (di->abbrev->tag == DW_TAG_compile_unit) return name;
if (!ctx->cpp_name)
ctx->cpp_name = pool_alloc(&ctx->pool, MAX_SYM_NAME);
last = ctx->cpp_name + MAX_SYM_NAME - strlen(name);
strcpy(last, name);
for (di = di->parent; di; di = di->parent)
{
switch (di->abbrev->tag)
{
case DW_TAG_namespace:
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_interface_type:
case DW_TAG_union_type:
if (dwarf2_find_attribute(ctx, di, DW_AT_name, &diname))
{
size_t len = strlen(diname.u.string);
last -= 2 + len;
if (last < ctx->cpp_name) return NULL;
memcpy(last, diname.u.string, len);
last[len] = last[len + 1] = ':';
}
break;
default:
break;
}
}
return last;
}
/******************************************************************
* dwarf2_read_range
*
@ -1331,7 +1367,8 @@ static struct symt* dwarf2_parse_udt_type(dwarf2_parse_context_t* ctx,
if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name)) name.u.string = NULL;
if (!dwarf2_find_attribute(ctx, di, DW_AT_byte_size, &size)) size.u.uvalue = 0;
di->symt = &symt_new_udt(ctx->module, name.u.string, size.u.uvalue, udt)->symt;
di->symt = &symt_new_udt(ctx->module, dwarf2_get_cpp_name(ctx, di, name.u.string),
size.u.uvalue, udt)->symt;
if (di->abbrev->have_child) /** any interest to not have child ? */
{
@ -1493,7 +1530,7 @@ static void dwarf2_parse_variable(dwarf2_subprogram_t* subpgm,
ext.u.uvalue = 0;
loc.offset += subpgm->ctx->load_offset;
symt_new_global_variable(subpgm->ctx->module, subpgm->compiland,
name.u.string, !ext.u.uvalue,
dwarf2_get_cpp_name(subpgm->ctx, di, name.u.string), !ext.u.uvalue,
loc, 0, param_type);
break;
default:
@ -1800,7 +1837,8 @@ static struct symt* dwarf2_parse_subprogram(dwarf2_parse_context_t* ctx,
sig_type = symt_new_function_signature(ctx->module, ret_type, CV_CALL_FAR_C);
if (!is_decl.u.uvalue)
{
subpgm.func = symt_new_function(ctx->module, compiland, name.u.string,
subpgm.func = symt_new_function(ctx->module, compiland,
dwarf2_get_cpp_name(ctx, di, name.u.string),
ctx->load_offset + low_pc, high_pc - low_pc,
&sig_type->symt);
di->symt = &subpgm.func->symt;
@ -1921,6 +1959,28 @@ static struct symt* dwarf2_parse_subroutine_type(dwarf2_parse_context_t* ctx,
return di->symt = &sig_type->symt;
}
static void dwarf2_parse_namespace(dwarf2_parse_context_t* ctx,
dwarf2_debug_info_t* di,
struct symt_compiland* compiland)
{
if (di->symt) return;
TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
di->symt = ctx->symt_cache[sc_void];
if (di->abbrev->have_child) /** any interest to not have child ? */
{
dwarf2_debug_info_t* child;
unsigned int i;
for (i = 0; i < vector_length(&di->children); i++)
{
child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
dwarf2_load_one_entry(ctx, child, compiland);
}
}
}
static void dwarf2_load_one_entry(dwarf2_parse_context_t* ctx,
dwarf2_debug_info_t* di,
struct symt_compiland* compiland)
@ -1979,8 +2039,10 @@ static void dwarf2_load_one_entry(dwarf2_parse_context_t* ctx,
dwarf2_parse_variable(&subpgm, NULL, di);
}
break;
/* silence a couple of C++ defines */
case DW_TAG_namespace:
dwarf2_parse_namespace(ctx, di, compiland);
break;
/* silence a couple of C++ defines */
case DW_TAG_imported_module:
case DW_TAG_imported_declaration:
case DW_TAG_ptr_to_member_type:
@ -2234,6 +2296,7 @@ static BOOL dwarf2_parse_compilation_unit(const dwarf2_section_t* sections,
ctx.ref_offset = comp_unit_start - sections[section_debug].address;
memset(ctx.symt_cache, 0, sizeof(ctx.symt_cache));
ctx.symt_cache[sc_void] = &symt_new_basic(module, btVoid, "void", 0)->symt;
ctx.cpp_name = NULL;
abbrev_ctx.data = sections[section_abbrev].address + cu_abbrev_offset;
abbrev_ctx.end_data = sections[section_abbrev].address + sections[section_abbrev].size;