X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3f5a22ee597719eb48bef0979b0628f7b76bfbe9..43bd833fa2f2127b62b553803e0bb9dc7fb11218:/src/mc/mc_dwarf.cpp diff --git a/src/mc/mc_dwarf.cpp b/src/mc/mc_dwarf.cpp index a1ae2d8ee4..37b97da381 100644 --- a/src/mc/mc_dwarf.cpp +++ b/src/mc/mc_dwarf.cpp @@ -6,6 +6,7 @@ #include +#include #include #include @@ -14,20 +15,18 @@ #include #include +#include #include #include +#include + #include "mc_object_info.h" #include "mc_private.h" +#include "mc_process.h" -static void MC_dwarf_register_global_variable( - mc_object_info_t info, std::unique_ptr variable); -static void MC_register_variable( - mc_object_info_t info, mc_frame_t frame, std::unique_ptr variable); -static void MC_dwarf_register_non_global_variable(mc_object_info_t info, mc_frame_t frame, mc_variable_t variable); -static void MC_dwarf_register_variable( - mc_object_info_t info, mc_frame_t frame, - std::unique_ptr variable); +#include "mc/ObjectInformation.hpp" +#include "mc/Variable.hpp" XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_dwarf, mc, "DWARF processing"); @@ -66,14 +65,14 @@ static uint64_t MC_dwarf_array_element_count(Dwarf_Die * die, Dwarf_Die * unit); * \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, mc_frame_t frame, +static void MC_dwarf_handle_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns); /** \brief Process a type DIE */ -static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t frame, +static void MC_dwarf_handle_type_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns); /** \brief Calls MC_dwarf_handle_die on all childrend of the given die @@ -83,8 +82,8 @@ static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die * 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, mc_frame_t frame, +static void MC_dwarf_handle_children(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns); /** \brief Handle a variable (DW_TAG_variable or other) @@ -94,8 +93,8 @@ static void MC_dwarf_handle_children(mc_object_info_t info, Dwarf_Die * die, * \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, mc_frame_t frame, +static void MC_dwarf_handle_variable_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns); /** \brief Get the DW_TAG_type of the DIE @@ -455,7 +454,25 @@ static uint64_t MC_dwarf_array_element_count(Dwarf_Die * die, Dwarf_Die * unit) return result; } -// ***** mc_type_t +// ***** Variable + +/** Sort the variable by name and address. + * + * We could use boost::container::flat_set instead. + */ +static bool MC_compare_variable( + simgrid::mc::Variable const& a, simgrid::mc::Variable const& b) +{ + int cmp = strcmp(a.name.c_str(), b.name.c_str()); + if (cmp < 0) + return true; + else if (cmp > 0) + return false; + else + return a.address < b.address; +} + +// ***** simgrid::mc::Type* /** \brief Initialize the location of a member of a type * (DW_AT_data_member_location of a DW_TAG_member). @@ -464,7 +481,7 @@ static uint64_t MC_dwarf_array_element_count(Dwarf_Die * die, Dwarf_Die * unit) * \param member the member of the type * \param child DIE of the member (DW_TAG_member) */ -static void MC_dwarf_fill_member_location(mc_type_t type, mc_type_t member, +static void MC_dwarf_fill_member_location(simgrid::mc::Type* type, simgrid::mc::Type* member, Dwarf_Die * child) { if (dwarf_hasattr(child, DW_AT_data_bit_offset)) { @@ -527,11 +544,6 @@ static void MC_dwarf_fill_member_location(mc_type_t type, mc_type_t member, } -static void dw_type_free_voidp(void *t) -{ - delete *(mc_type_t*)t; -} - /** \brief Populate the list of members of a type * * \param info ELF object containing the type DIE @@ -539,8 +551,8 @@ static void dw_type_free_voidp(void *t) * \param unit DIE of the compilation unit containing the type DIE * \param type the type */ -static void MC_dwarf_add_members(mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_type_t type) +static void MC_dwarf_add_members(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Type* type) { int res; Dwarf_Die child; @@ -598,18 +610,15 @@ static void MC_dwarf_add_members(mc_object_info_t info, Dwarf_Die * die, * \return MC representation of the type */ static simgrid::mc::Type MC_dwarf_die_to_type( - mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t frame, + simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns) { - simgrid::mc::Type type; - type.type = -1; + type.type = dwarf_tag(die); type.name = std::string(); type.element_count = -1; - type.type = dwarf_tag(die); - // Global Offset type.id = dwarf_dieoffset(die); @@ -682,8 +691,8 @@ static simgrid::mc::Type MC_dwarf_die_to_type( return std::move(type); } -static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t frame, +static void MC_dwarf_handle_type_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns) { simgrid::mc::Type type = MC_dwarf_die_to_type(info, die, unit, frame, ns); @@ -695,8 +704,8 @@ static void MC_dwarf_handle_type_die(mc_object_info_t info, Dwarf_Die * die, static int mc_anonymous_variable_index = 0; static std::unique_ptr MC_die_to_variable( - mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t frame, + simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns) { // Skip declarations: @@ -806,16 +815,25 @@ static std::unique_ptr MC_die_to_variable( return std::move(variable); } -static void MC_dwarf_handle_variable_die(mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t frame, +static void MC_dwarf_handle_variable_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns) { - MC_dwarf_register_variable(info, frame, - MC_die_to_variable(info, die, unit, frame, ns)); + std::unique_ptr variable = + MC_die_to_variable(info, die, unit, frame, ns); + if (!variable) + return; + // Those arrays are sorted later: + else if (variable->global) + info->global_variables.push_back(std::move(*variable)); + else if (frame != nullptr) + frame->variables.push_back(std::move(*variable)); + else + xbt_die("No frame for this local variable"); } -static void MC_dwarf_handle_scope_die(mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t parent_frame, +static void MC_dwarf_handle_scope_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* parent_frame, const char *ns) { // TODO, handle DW_TAG_type/DW_TAG_location for DW_TAG_with_stmt @@ -840,8 +858,10 @@ static void MC_dwarf_handle_scope_die(mc_object_info_t info, Dwarf_Die * die, const char *name = MC_dwarf_attr_integrate_string(die, DW_AT_name); if(ns) frame.name = std::string(ns) + "::" + name; - else + else if (name) frame.name = name; + else + frame.name.clear(); } frame.abstract_origin_id = @@ -898,6 +918,10 @@ static void MC_dwarf_handle_scope_die(mc_object_info_t info, Dwarf_Die * die, // Handle children: MC_dwarf_handle_children(info, die, unit, &frame, ns); + // Someone needs this to be sorted but who? + std::sort(frame.variables.begin(), frame.variables.end(), + MC_compare_variable); + // Register it: if (klass == mc_tag_subprogram) info->subprograms[frame.id] = frame; @@ -905,9 +929,9 @@ static void MC_dwarf_handle_scope_die(mc_object_info_t info, Dwarf_Die * die, parent_frame->scopes.push_back(std::move(frame)); } -static void mc_dwarf_handle_namespace_die(mc_object_info_t info, +static void mc_dwarf_handle_namespace_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, Dwarf_Die * unit, - mc_frame_t frame, + simgrid::mc::Frame* frame, const char *ns) { const char *name = MC_dwarf_attr_integrate_string(die, DW_AT_name); @@ -919,8 +943,8 @@ static void mc_dwarf_handle_namespace_die(mc_object_info_t info, xbt_free(new_ns); } -static void MC_dwarf_handle_children(mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t frame, +static void MC_dwarf_handle_children(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns) { // For each child DIE: @@ -932,8 +956,8 @@ static void MC_dwarf_handle_children(mc_object_info_t info, Dwarf_Die * die, } } -static void MC_dwarf_handle_die(mc_object_info_t info, Dwarf_Die * die, - Dwarf_Die * unit, mc_frame_t frame, +static void MC_dwarf_handle_die(simgrid::mc::ObjectInformation* info, Dwarf_Die * die, + Dwarf_Die * unit, simgrid::mc::Frame* frame, const char *ns) { int tag = dwarf_tag(die); @@ -971,7 +995,7 @@ static void MC_dwarf_handle_die(mc_object_info_t info, Dwarf_Die * die, * Read the DWARf information of the EFFL object and populate the * lists of types, variables, functions. */ -void MC_dwarf_get_variables(mc_object_info_t info) +void MC_dwarf_get_variables(simgrid::mc::ObjectInformation* info) { int fd = open(info->file_name.c_str(), O_RDONLY); if (fd < 0) @@ -1007,8 +1031,8 @@ void MC_dwarf_get_variables(mc_object_info_t info) // ***** Functions index -static int MC_compare_frame_index_items(mc_function_index_item_t a, - mc_function_index_item_t b) +static int MC_compare_frame_index_items(simgrid::mc::FunctionIndexEntry* a, + simgrid::mc::FunctionIndexEntry* b) { if (a->low_pc < b->low_pc) return -1; @@ -1018,45 +1042,44 @@ static int MC_compare_frame_index_items(mc_function_index_item_t a, return 1; } -static void MC_make_functions_index(mc_object_info_t info) +static void MC_make_functions_index(simgrid::mc::ObjectInformation* info) { - xbt_dynar_t index = xbt_dynar_new(sizeof(s_mc_function_index_item_t), NULL); + info->functions_index.clear(); for (auto& e : info->subprograms) { if (e.second.low_pc == nullptr) continue; - s_mc_function_index_item_t entry; + simgrid::mc::FunctionIndexEntry entry; entry.low_pc = e.second.low_pc; - entry.high_pc = e.second.high_pc; entry.function = &e.second; - xbt_dynar_push(index, &entry); + info->functions_index.push_back(entry); } - mc_function_index_item_t base = - (mc_function_index_item_t) xbt_dynar_get_ptr(index, 0); + info->functions_index.shrink_to_fit(); // Sort the array by low_pc: - qsort(base, - xbt_dynar_length(index), - sizeof(s_mc_function_index_item_t), - (int (*)(const void *, const void *)) MC_compare_frame_index_items); - - info->functions_index = index; + std::sort(info->functions_index.begin(), info->functions_index.end(), + [](simgrid::mc::FunctionIndexEntry const& a, + simgrid::mc::FunctionIndexEntry const& b) + { + return a.low_pc < b.low_pc; + }); } -static void MC_post_process_variables(mc_object_info_t info) +static void MC_post_process_variables(simgrid::mc::ObjectInformation* info) { + // Someone needs this to be sorted but who? + std::sort(info->global_variables.begin(), info->global_variables.end(), + MC_compare_variable); + for(simgrid::mc::Variable& variable : info->global_variables) if (variable.type_id) { - auto i = info->types.find(variable.type_id); - if (i != info->types.end()) - variable.type = &(i->second); - else - variable.type = nullptr; + variable.type = simgrid::util::find_map_ptr( + info->types, variable.type_id); } } -static void mc_post_process_scope(mc_object_info_t info, mc_frame_t scope) +static void mc_post_process_scope(simgrid::mc::ObjectInformation* info, simgrid::mc::Frame* scope) { if (scope->tag == DW_TAG_inlined_subroutine) { @@ -1071,11 +1094,8 @@ static void mc_post_process_scope(mc_object_info_t info, mc_frame_t scope) // Direct: for (simgrid::mc::Variable& variable : scope->variables) if (variable.type_id) { - auto i = info->types.find(variable.type_id); - if (i != info->types.end()) - variable.type = &(i->second); - else - variable.type = nullptr; + variable.type = simgrid::util::find_map_ptr( + info->types, variable.type_id); } // Recursive post-processing of nested-scopes: @@ -1084,39 +1104,28 @@ static void mc_post_process_scope(mc_object_info_t info, mc_frame_t scope) } -static void MC_post_process_functions(mc_object_info_t info) -{ - for (auto& entry : info->subprograms) - mc_post_process_scope(info, &entry.second); -} - - /** \brief Fill/lookup the "subtype" field. */ -static void MC_resolve_subtype(mc_object_info_t info, mc_type_t type) +static void MC_resolve_subtype(simgrid::mc::ObjectInformation* info, simgrid::mc::Type* type) { if (!type->type_id) return; - auto i = info->types.find(type->type_id); - if (i != info->types.end()) - type->subtype = &(i->second); - else { - type->subtype = nullptr; + type->subtype = simgrid::util::find_map_ptr(info->types, type->type_id); + if (type->subtype == nullptr) return; - } if (type->subtype->byte_size != 0) return; if (type->subtype->name.empty()) return; // Try to find a more complete description of the type: // We need to fix in order to support C++. - - auto j = info->full_types_by_name.find(type->subtype->name); - if (j != info->full_types_by_name.end()) - type->subtype = j->second; + simgrid::mc::Type** subtype = simgrid::util::find_map_ptr( + info->full_types_by_name, type->subtype->name); + if (subtype) + type->subtype = *subtype; } -static void MC_post_process_types(mc_object_info_t info) +static void MC_post_process_types(simgrid::mc::ObjectInformation* info) { // Lookup "subtype" field: for(auto& i : info->types) { @@ -1127,119 +1136,32 @@ static void MC_post_process_types(mc_object_info_t info) } /** \brief Finds informations about a given shared object/executable */ -std::shared_ptr MC_find_object_info( +std::shared_ptr MC_find_object_info( std::vector const& maps, const char *name, int executable) { - std::shared_ptr result = - std::make_shared(); + std::shared_ptr result = + std::make_shared(); if (executable) - result->flags |= MC_OBJECT_INFO_EXECUTABLE; + result->flags |= simgrid::mc::ObjectInformation::Executable; result->file_name = name; MC_find_object_address(maps, result.get()); MC_dwarf_get_variables(result.get()); - MC_post_process_types(result.get()); MC_post_process_variables(result.get()); - MC_post_process_functions(result.get()); + MC_post_process_types(result.get()); + for (auto& entry : result.get()->subprograms) + mc_post_process_scope(result.get(), &entry.second); MC_make_functions_index(result.get()); return std::move(result); } /*************************************************************************/ -static int MC_dwarf_get_variable_index( - std::vector variables, const char *var, void *address) -{ - - if (variables.empty()) - return 0; - - unsigned int cursor = 0; - int start = 0; - int end = variables.size() - 1; - mc_variable_t var_test = nullptr; - - while (start <= end) { - cursor = (start + end) / 2; - var_test = &variables[cursor]; - if (strcmp(var_test->name.c_str(), var) < 0) { - start = cursor + 1; - } else if (strcmp(var_test->name.c_str(), var) > 0) { - end = cursor - 1; - } else { - if (address) { /* global variable */ - if (var_test->address == address) - return -1; - if (var_test->address > address) - end = cursor - 1; - else - start = cursor + 1; - } else { /* local variable */ - return -1; - } - } - } - - if (strcmp(var_test->name.c_str(), var) == 0) { - if (address && var_test->address < address) - return cursor + 1; - else - return cursor; - } else if (strcmp(var_test->name.c_str(), var) < 0) - return cursor + 1; - else - return cursor; - -} - -void MC_dwarf_register_global_variable( - mc_object_info_t info, - std::unique_ptr variable) -{ - int index = - MC_dwarf_get_variable_index(info->global_variables, - variable->name.c_str(), - variable->address); - if (index != -1) - info->global_variables.insert( - info->global_variables.begin() + index, std::move(*variable)); - // TODO, else ? -} - -void MC_dwarf_register_non_global_variable( - mc_object_info_t info, - mc_frame_t frame, - std::unique_ptr variable) -{ - xbt_assert(frame, "Frame is NULL"); - int index = - MC_dwarf_get_variable_index( - frame->variables, variable->name.c_str(), NULL); - if (index != -1) - frame->variables.insert( - frame->variables.begin() + index, std::move(*variable)); - // TODO, else ? -} - -void MC_dwarf_register_variable( - mc_object_info_t info, mc_frame_t frame, - std::unique_ptr variable) -{ - if (!variable) - return; - if (variable->global) - MC_dwarf_register_global_variable(info, std::move(variable)); - else if (frame != nullptr) - MC_dwarf_register_non_global_variable(info, frame, std::move(variable)); - else - xbt_die("No frame for this local variable"); -} - -void MC_post_process_object_info(mc_process_t process, mc_object_info_t info) +void MC_post_process_object_info(simgrid::mc::Process* process, simgrid::mc::ObjectInformation* info) { for (auto& i : info->types) { - mc_type_t type = &(i.second); - mc_type_t subtype = type; + simgrid::mc::Type* type = &(i.second); + simgrid::mc::Type* subtype = type; while (subtype->type == DW_TAG_typedef || subtype->type == DW_TAG_volatile_type || subtype->type == DW_TAG_const_type) { if (subtype->subtype)