#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
+#include <sys/mman.h>
#include <libgen.h>
#include "simgrid/sg_config.h"
xbt_free(frame->name);
mc_dwarf_location_list_clear(&(frame->frame_base));
xbt_dynar_free(&(frame->variables));
+ xbt_dynar_free(&(frame->scopes));
xbt_free(frame);
}
xbt_free(t);
}
-static void dw_type_free_voidp(void *t){
- dw_type_free((dw_type_t) * (void **) t);
-}
-
void dw_variable_free(dw_variable_t v){
if(v){
xbt_free(v->name);
mc_object_info_t res = xbt_new0(s_mc_object_info_t, 1);
res->subprograms = xbt_dict_new_homogeneous((void (*)(void*))mc_frame_free);
res->global_variables = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp);
- res->types = xbt_dict_new_homogeneous(NULL);
+ res->types = xbt_dict_new_homogeneous((void (*)(void*))dw_type_free);
res->full_types_by_name = xbt_dict_new_homogeneous(NULL);
return res;
}
// ***** Helpers
void* MC_object_base_address(mc_object_info_t info) {
+ if(info->flags & MC_OBJECT_INFO_EXECUTABLE)
+ return 0;
void* result = info->start_exec;
if(info->start_rw!=NULL && result > (void*) info->start_rw) result = info->start_rw;
if(info->start_ro!=NULL && result > (void*) info->start_ro) result = info->start_ro;
int k = i + ((j-i)/2);
if(ip < base[k].low_pc) {
j = k-1;
- } else if(ip > base[k].high_pc) {
+ } else if(ip >= base[k].high_pc) {
i = k+1;
} else {
return base[k].function;
}
}
+static void mc_post_process_scope(mc_object_info_t info, dw_frame_t scope) {
+
+ if(scope->tag == DW_TAG_inlined_subroutine) {
+
+ // Attach correct namespaced name in inlined subroutine:
+ char* key = bprintf("%" PRIx64, (uint64_t) scope->abstract_origin_id);
+ dw_frame_t abstract_origin = xbt_dict_get_or_null(info->subprograms, key);
+ xbt_assert(abstract_origin, "Could not lookup abstract origin %s", key);
+ xbt_free(key);
+ scope->name = xbt_strdup(abstract_origin->name);
+
+ }
+
+ // Direct:
+ unsigned cursor = 0;
+ dw_variable_t variable = NULL;
+ xbt_dynar_foreach(scope->variables, cursor, variable) {
+ if(variable->type_origin) {
+ variable->type = xbt_dict_get_or_null(info->types, variable->type_origin);
+ }
+ }
+
+ // Recursive post-processing of nested-scopes:
+ dw_frame_t nested_scope = NULL;
+ xbt_dynar_foreach(scope->scopes, cursor, nested_scope)
+ mc_post_process_scope(info, nested_scope);
+
+}
+
static void MC_post_process_functions(mc_object_info_t info) {
xbt_dict_cursor_t cursor;
char* key;
- dw_frame_t function = NULL;
- xbt_dict_foreach(info->subprograms, cursor, key, function) {
- unsigned cursor2 = 0;
- dw_variable_t variable = NULL;
- xbt_dynar_foreach(function->variables, cursor2, variable) {
- if(variable->type_origin) {
- variable->type = xbt_dict_get_or_null(info->types, variable->type_origin);
- }
- }
+ dw_frame_t subprogram = NULL;
+ xbt_dict_foreach(info->subprograms, cursor, key, subprogram) {
+ mc_post_process_scope(info, subprogram);
}
}
/*************************************************************************/
-/** \brief Finds a frame (DW_TAG_subprogram) from an DWARF offset in the rangd of this subprogram
- *
- * The offset can be an offset of a child DW_TAG_variable.
- */
-static dw_frame_t MC_dwarf_get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
-
- xbt_dict_cursor_t cursor = NULL;
- char *name;
- dw_frame_t res;
-
- xbt_dict_foreach(all_variables, cursor, name, res) {
- if(offset >= res->start && offset < res->end){
- xbt_dict_cursor_free(&cursor);
- return res;
- }
- }
-
- xbt_dict_cursor_free(&cursor);
- return NULL;
-
-}
-
-static dw_variable_t MC_dwarf_get_variable_by_name(dw_frame_t frame, char *var){
-
- unsigned int cursor = 0;
- dw_variable_t current_var;
-
- xbt_dynar_foreach(frame->variables, cursor, current_var){
- if(strcmp(var, current_var->name) == 0)
- return current_var;
- }
-
- return NULL;
-}
-
static int MC_dwarf_get_variable_index(xbt_dynar_t variables, char* var, void *address){
if(xbt_dynar_is_empty(variables))
MC_UNSET_RAW_MEM;
}
-static void MC_ignore_local_variable_in_object(const char *var_name, const char *frame_name, mc_object_info_t info) {
- xbt_dict_cursor_t cursor2;
- dw_frame_t frame;
- int start, end;
- int cursor = 0;
- dw_variable_t current_var;
- char* key;
- xbt_dict_foreach(info->subprograms, cursor2, key, frame) {
+/** \brief Ignore a local variable in a scope
+ *
+ * Ignore all instances of variables with a given name in
+ * any (possibly inlined) subprogram with a given namespaced
+ * name.
+ *
+ * \param var_name Name of the local variable (or parameter to ignore)
+ * \param subprogram_name Name of the subprogram fo ignore (NULL for any)
+ * \param subprogram (possibly inlined) Subprogram of the scope
+ * \param scope Current scope
+ */
+static void mc_ignore_local_variable_in_scope(
+ const char *var_name, const char *subprogram_name,
+ dw_frame_t subprogram, dw_frame_t scope) {
+ // Processing of direct variables:
- if(frame_name && strcmp(frame_name, frame->name))
- continue;
+ // If the current subprogram matche the given name:
+ if(subprogram_name==NULL || strcmp(subprogram_name, subprogram->name)==0) {
- start = 0;
- end = xbt_dynar_length(frame->variables) - 1;
+ // Try to find the variable and remove it:
+ int start = 0;
+ int end = xbt_dynar_length(scope->variables) - 1;
+
+ // Dichotomic search:
while(start <= end){
- cursor = (start + end) / 2;
- current_var = (dw_variable_t)xbt_dynar_get_as(frame->variables, cursor, dw_variable_t);
+ int cursor = (start + end) / 2;
+ dw_variable_t current_var = (dw_variable_t)xbt_dynar_get_as(scope->variables, cursor, dw_variable_t);
int compare = strcmp(current_var->name, var_name);
if(compare == 0){
- xbt_dynar_remove_at(frame->variables, cursor, NULL);
+ // Variable found, remove it:
+ xbt_dynar_remove_at(scope->variables, cursor, NULL);
+
+ // and start again:
start = 0;
- end = xbt_dynar_length(frame->variables) - 1;
+ end = xbt_dynar_length(scope->variables) - 1;
}else if(compare < 0){
start = cursor + 1;
}else{
end = cursor - 1;
}
}
+
+ }
+
+ // And recursive processing in nested scopes:
+ unsigned cursor = 0;
+ dw_frame_t nested_scope = NULL;
+ xbt_dynar_foreach(scope->scopes, cursor, nested_scope) {
+ // The new scope may be an inlined subroutine, in this case we want to use its
+ // namespaced name in recursive calls:
+ dw_frame_t nested_subprogram = nested_scope->tag == DW_TAG_inlined_subroutine ? nested_scope : subprogram;
+
+ mc_ignore_local_variable_in_scope(var_name, subprogram_name, nested_subprogram, nested_scope);
+ }
+}
+
+static void MC_ignore_local_variable_in_object(const char *var_name, const char *subprogram_name, mc_object_info_t info) {
+ xbt_dict_cursor_t cursor2;
+ dw_frame_t frame;
+ char* key;
+ xbt_dict_foreach(info->subprograms, cursor2, key, frame) {
+ mc_ignore_local_variable_in_scope(var_name, subprogram_name, frame, frame);
}
}
