* \param unit the DIE of the compile unit of the current DIE
* \param frame containg frame if any
*/
-static void MC_dwarf_handle_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame);
+static void MC_dwarf_handle_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace);
/** \brief Process a type DIE
*/
-static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit);
+static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace);
/** \brief Calls MC_dwarf_handle_die on all childrend of the given die
*
* \param unit the DIE of the compile unit of the current DIE
* \param frame containg frame if any
*/
-static void MC_dwarf_handle_children(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame);
+static void MC_dwarf_handle_children(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace);
/** \brief Handle a variable (DW_TAG_variable or other)
*
* \param unit the DIE of the compile unit of the current DIE
* \param frame containg frame if any
*/
-static void MC_dwarf_handle_variable_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame);
+static void MC_dwarf_handle_variable_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace);
/** \brief Convert a libdw DWARF expression into a MC representation of the location
*
switch (attr) {
#include "mc_dwarf_attrnames.h"
default:
- return "DW_AT_unkown";
+ return "DW_AT_unknown";
}
}
case DW_TAG_invalid:
return "DW_TAG_invalid";
default:
- return "DW_TAG_unkown";
+ return "DW_TAG_unknown";
}
}
/** \brief A class of DWARF tags (DW_TAG_*)
*/
typedef enum mc_tag_class {
- mc_tag_unkonwn,
+ mc_tag_unknown,
mc_tag_type,
mc_tag_subprogram,
mc_tag_variable,
- mc_tag_scope
+ mc_tag_scope,
+ mc_tag_namespace
} mc_tag_class;
-static mc_tag_class MC_dwarg_tag_classify(int tag) {
+static mc_tag_class MC_dwarf_tag_classify(int tag) {
switch (tag) {
case DW_TAG_array_type:
case DW_TAG_inlined_subroutine:
return mc_tag_scope;
+ case DW_TAG_namespace:
+ return mc_tag_namespace;
+
default:
- return mc_tag_unkonwn;
+ return mc_tag_unknown;
}
}
type->members = xbt_dynar_new(sizeof(dw_type_t), (void(*)(void*))dw_type_free);
for (res=dwarf_child(die, &child); res==0; res=dwarf_siblingof(&child,&child)) {
if (dwarf_tag(&child)==DW_TAG_member) {
+
+ // Skip compile time constants:
+ if(dwarf_hasattr(&child, DW_AT_const_value))
+ continue;
+
// TODO, we should use another type (because is is not a type but a member)
dw_type_t member = xbt_new0(s_dw_type_t, 1);
member->type = -1;
* \param unit compilation unit of the current DIE
* \return MC representation of the type
*/
-static dw_type_t MC_dwarf_die_to_type(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit) {
+static dw_type_t MC_dwarf_die_to_type(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace) {
dw_type_t type = xbt_new0(s_dw_type_t, 1);
type->type = -1;
case DW_TAG_union_type:
case DW_TAG_class_type:
MC_dwarf_add_members(info, die, unit, type);
+ char* new_namespace = namespace == NULL ? xbt_strdup(type->name)
+ : bprintf("%s::%s", namespace, type->name);
+ MC_dwarf_handle_children(info, die, unit, frame, new_namespace);
+ free(new_namespace);
+ break;
}
return type;
}
-static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit) {
- dw_type_t type = MC_dwarf_die_to_type(info, die, unit);
+static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace) {
+ dw_type_t type = MC_dwarf_die_to_type(info, die, unit, frame, namespace);
char* key = bprintf("%" PRIx64, (uint64_t) type->id);
xbt_dict_set(info->types, key, type, NULL);
static int mc_anonymous_variable_index = 0;
-static dw_variable_t MC_die_to_variable(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame) {
- // Drop declaration:
+static dw_variable_t MC_die_to_variable(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace) {
+ // Skip declarations:
if (MC_dwarf_attr_flag(die, DW_AT_declaration, false))
return NULL;
+ // Skip compile time constants:
+ if(dwarf_hasattr(die, DW_AT_const_value))
+ return NULL;
+
Dwarf_Attribute attr_location;
if (dwarf_attr(die, DW_AT_location, &attr_location)==NULL) {
// No location: do not add it ?
dw_variable_t variable = xbt_new0(s_dw_variable_t, 1);
variable->dwarf_offset = dwarf_dieoffset(die);
variable->global = frame == NULL; // Can be override base on DW_AT_location
- variable->name = xbt_strdup(MC_dwarf_attr_string(die, DW_AT_name));
+
+ const char* name = MC_dwarf_attr_string(die, DW_AT_name);
+ variable->name = xbt_strdup(name);
+
variable->type_origin = MC_dwarf_at_type(die);
int klass = MC_dwarf_form_get_class(dwarf_whatform(&attr_location));
klass, klass, (void*) variable->dwarf_offset, variable->name);
}
+ // Handle start_scope:
+ if (dwarf_hasattr(die, DW_AT_start_scope)) {
+ Dwarf_Attribute attr;
+ dwarf_attr(die, DW_AT_start_scope, &attr);
+ int form = dwarf_whatform(&attr);
+ int klass = MC_dwarf_form_get_class(form);
+ switch(klass) {
+ case MC_DW_CLASS_CONSTANT:
+ {
+ Dwarf_Word value;
+ variable->start_scope = dwarf_formudata(&attr, &value) == 0 ? (size_t) value : 0;
+ break;
+ }
+ default:
+ xbt_die("Unhandled form 0x%x, class 0x%X for DW_AT_start_scope of variable %s",
+ form, klass, name==NULL ? "?" : name);
+ }
+ }
+
+ if(namespace && variable->global) {
+ char* old_name = variable->name;
+ variable->name = bprintf("%s::%s", namespace, old_name);
+ free(old_name);
+ }
+
// The current code needs a variable name,
// generate a fake one:
if(!variable->name) {
return variable;
}
-static void MC_dwarf_handle_variable_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame) {
- dw_variable_t variable = MC_die_to_variable(info, die, unit, frame);
+static void MC_dwarf_handle_variable_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace) {
+ dw_variable_t variable = MC_die_to_variable(info, die, unit, frame, namespace);
if(variable==NULL)
return;
MC_dwarf_register_variable(info, frame, variable);
}
-static void MC_dwarf_handle_subprogram_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t parent_frame) {
+static void MC_dwarf_handle_subprogram_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t parent_frame, const char* namespace) {
dw_frame_t frame = xbt_new0(s_dw_frame_t, 1);
frame->start = dwarf_dieoffset(die);
const char* name = MC_dwarf_attr_string(die, DW_AT_name);
- frame->name = xbt_strdup(name);
+ frame->name = namespace ? bprintf("%s::%s", namespace, name) : xbt_strdup(name);
// This is the base address for DWARF addresses.
// Relocated addresses are offset from this base address.
frame->frame_base = MC_dwarf_at_location(info, die, DW_AT_frame_base);
frame->end = -1; // This one is now useless:
- // Handle children:
- MC_dwarf_handle_children(info, die, unit, frame);
-
// Register it:
xbt_dynar_push(info->subprograms, &frame);
+
+ // Handle children:
+ MC_dwarf_handle_children(info, die, unit, frame, namespace);
+}
+
+static void mc_dwarf_handle_namespace_die(
+ mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace) {
+ const char* name = MC_dwarf_attr_string(die, DW_AT_name);
+ if(frame)
+ xbt_die("Unexpected namespace in a subprogram");
+ char* new_namespace = namespace == NULL ? xbt_strdup(name)
+ : bprintf("%s::%s", namespace, name);
+ MC_dwarf_handle_children(info, die, unit, frame, new_namespace);
}
-static void MC_dwarf_handle_children(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame) {
+static void MC_dwarf_handle_children(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace) {
Dwarf_Die child;
int res;
for (res=dwarf_child(die, &child); res==0; res=dwarf_siblingof(&child,&child)) {
- MC_dwarf_handle_die(info, &child, unit, frame);
+ MC_dwarf_handle_die(info, &child, unit, frame, namespace);
}
}
-static void MC_dwarf_handle_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame) {
+static void MC_dwarf_handle_die(mc_object_info_t info, Dwarf_Die* die, Dwarf_Die* unit, dw_frame_t frame, const char* namespace) {
int tag = dwarf_tag(die);
- mc_tag_class klass = MC_dwarg_tag_classify(tag);
+ mc_tag_class klass = MC_dwarf_tag_classify(tag);
switch (klass) {
// Type:
case mc_tag_type:
- MC_dwarf_handle_type_die(info, die, unit);
+ MC_dwarf_handle_type_die(info, die, unit, frame, namespace);
break;
// Program:
case mc_tag_subprogram:
- MC_dwarf_handle_subprogram_die(info, die, unit, frame);
+ MC_dwarf_handle_subprogram_die(info, die, unit, frame, namespace);
return;
// Variable:
case mc_tag_variable:
- MC_dwarf_handle_variable_die(info, die, unit, frame);
+ MC_dwarf_handle_variable_die(info, die, unit, frame, namespace);
break;
// Scope:
// TODO
break;
+ case mc_tag_namespace:
+ mc_dwarf_handle_namespace_die(info, die, unit, frame, namespace);
+ break;
+
default:
break;
Dwarf_Die child;
int res;
for (res=dwarf_child(&unit_die, &child); res==0; res=dwarf_siblingof(&child,&child)) {
- MC_dwarf_handle_die(info, &child, &unit_die, NULL);
+ MC_dwarf_handle_die(info, &child, &unit_die, NULL, NULL);
}
}
offset = next_offset;
