-/* Copyright (c) 2008-2014. The SimGrid Team.
+/* Copyright (c) 2008-2015. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <cinttypes>
+#include <cstdint>
#include <algorithm>
#include <memory>
-#include <stdlib.h>
+#include <cstdlib>
#define DW_LANG_Objc DW_LANG_ObjC /* fix spelling error in older dwarf.h */
#include <dwarf.h>
#include <elfutils/libdw.h>
#include "mc_object_info.h"
#include "mc_private.h"
-#include "mc_process.h"
+#include "mc/Process.hpp"
#include "mc/ObjectInformation.hpp"
#include "mc/Variable.hpp"
static Dwarf_Off MC_dwarf_attr_dieoffset(Dwarf_Die * die, int attribute)
{
Dwarf_Attribute attr;
- if (dwarf_hasattr_integrate(die, attribute)) {
- dwarf_attr_integrate(die, attribute, &attr);
- Dwarf_Die subtype_die;
- if (dwarf_formref_die(&attr, &subtype_die) == NULL) {
- xbt_die("Could not find DIE");
- }
- return dwarf_dieoffset(&subtype_die);
- } else
+ if (dwarf_hasattr_integrate(die, attribute) == 0)
return 0;
+ dwarf_attr_integrate(die, attribute, &attr);
+ Dwarf_Die subtype_die;
+ if (dwarf_formref_die(&attr, &subtype_die) == NULL)
+ xbt_die("Could not find DIE");
+ return dwarf_dieoffset(&subtype_die);
}
static Dwarf_Off MC_dwarf_attr_integrate_dieoffset(Dwarf_Die * die,
int attribute)
{
Dwarf_Attribute attr;
- if (dwarf_hasattr_integrate(die, attribute)) {
- dwarf_attr_integrate(die, DW_AT_type, &attr);
- Dwarf_Die subtype_die;
- if (dwarf_formref_die(&attr, &subtype_die) == NULL) {
- xbt_die("Could not find DIE");
- }
- return dwarf_dieoffset(&subtype_die);
- } else
+ if (dwarf_hasattr_integrate(die, attribute) == 0)
return 0;
+ dwarf_attr_integrate(die, DW_AT_type, &attr);
+ Dwarf_Die subtype_die;
+ if (dwarf_formref_die(&attr, &subtype_die) == NULL)
+ xbt_die("Could not find DIE");
+ return dwarf_dieoffset(&subtype_die);
}
/** \brief Find the type/subtype (DW_AT_type) for a DIE
MC_dwarf_die_tagname(die));
// Use DW_TAG_count if present:
- if (dwarf_hasattr_integrate(die, DW_AT_count)) {
+ if (dwarf_hasattr_integrate(die, DW_AT_count))
return MC_dwarf_attr_integrate_uint(die, DW_AT_count, 0);
- }
// Otherwise compute DW_TAG_upper_bound-DW_TAG_lower_bound + 1:
- if (!dwarf_hasattr_integrate(die, DW_AT_upper_bound)) {
+ if (!dwarf_hasattr_integrate(die, DW_AT_upper_bound))
// This is not really 0, but the code expects this (we do not know):
return 0;
- }
+
uint64_t upper_bound =
MC_dwarf_attr_integrate_uint(die, DW_AT_upper_bound, -1);
uint64_t lower_bound = 0;
- if (dwarf_hasattr_integrate(die, DW_AT_lower_bound)) {
+ if (dwarf_hasattr_integrate(die, DW_AT_lower_bound))
lower_bound = MC_dwarf_attr_integrate_uint(die, DW_AT_lower_bound, -1);
- } else {
+ else
lower_bound = MC_dwarf_default_lower_bound(dwarf_srclang(unit));
- }
return upper_bound - lower_bound + 1;
}
res = dwarf_siblingof(&child, &child)) {
int child_tag = dwarf_tag(&child);
if (child_tag == DW_TAG_subrange_type
- || child_tag == DW_TAG_enumeration_type) {
+ || child_tag == DW_TAG_enumeration_type)
result *= MC_dwarf_subrange_element_count(&child, unit);
- }
}
return result;
}
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)) {
+ if (dwarf_hasattr(child, DW_AT_data_bit_offset))
xbt_die("Can't groke DW_AT_data_bit_offset.");
- }
if (!dwarf_hasattr_integrate(child, DW_AT_data_member_location)) {
- if (type->type != DW_TAG_union_type) {
- xbt_die
- ("Missing DW_AT_data_member_location field in DW_TAG_member %s of type <%"
- PRIx64 ">%s", member->name.c_str(),
- (uint64_t) type->id, type->name.c_str());
- } else {
+ if (type->type == DW_TAG_union_type)
return;
- }
+ xbt_die
+ ("Missing DW_AT_data_member_location field in DW_TAG_member %s of type <%"
+ PRIx64 ">%s", member->name.c_str(),
+ (uint64_t) type->id, type->name.c_str());
}
Dwarf_Attribute attr;
{
Dwarf_Op *expr;
size_t len;
- if (dwarf_getlocation(&attr, &expr, &len)) {
+ if (dwarf_getlocation(&attr, &expr, &len))
xbt_die
("Could not read location expression DW_AT_data_member_location in DW_TAG_member %s of type <%"
PRIx64 ">%s", MC_dwarf_attr_integrate_string(child, DW_AT_name),
(uint64_t) type->id, type->name.c_str());
- }
- simgrid::mc::DwarfExpression(expr, expr+len);
+ member->location_expression = simgrid::mc::DwarfExpression(expr, expr+len);
break;
}
case MC_DW_CLASS_CONSTANT:
member.element_count = -1;
member.type_id = MC_dwarf_at_type(&child);
- if (dwarf_hasattr(&child, DW_AT_data_bit_offset)) {
+ if (dwarf_hasattr(&child, DW_AT_data_bit_offset))
xbt_die("Can't groke DW_AT_data_bit_offset.");
- }
MC_dwarf_fill_member_location(type, &member, &child);
- if (!member.type_id) {
+ if (!member.type_id)
xbt_die("Missing type for member %s of <%" PRIx64 ">%s",
member.name.c_str(),
(uint64_t) type->id, type->name.c_str());
- }
type->members.push_back(std::move(member));
}
|| type.type == DW_TAG_structure_type
|| type.type == DW_TAG_class_type) {
Dwarf_Word size;
- if (dwarf_aggregate_size(die, &size) == 0) {
+ if (dwarf_aggregate_size(die, &size) == 0)
type.byte_size = size;
- }
}
switch (type.type) {
return nullptr;
Dwarf_Attribute attr_location;
- if (dwarf_attr(die, DW_AT_location, &attr_location) == NULL) {
+ if (dwarf_attr(die, DW_AT_location, &attr_location) == NULL)
// No location: do not add it ?
return nullptr;
- }
std::unique_ptr<simgrid::mc::Variable> variable =
std::unique_ptr<simgrid::mc::Variable>(new simgrid::mc::Variable());
xbt_die("Could not open file %s", info->file_name.c_str());
Dwarf *dwarf = dwarf_begin(fd, DWARF_C_READ);
if (dwarf == NULL)
- xbt_die("Your program must be compiled with -g (%s)",
+ xbt_die("Missing debugging information in %s\n"
+ "Your program and its dependencies must have debugging information.\n"
+ "You might want to recompile with -g or install the suitable debugging package.\n",
info->file_name.c_str());
// For each compilation unit:
Dwarf_Off offset = 0;
Dwarf_Off next_offset = 0;
size_t length;
+
while (dwarf_nextcu(dwarf, offset, &next_offset, &length, NULL, NULL, NULL) ==
0) {
Dwarf_Die unit_die;
- if (dwarf_offdie(dwarf, offset + length, &unit_die) != NULL) {
-
- // For each child DIE:
- 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, NULL);
- }
-
- }
+ if (dwarf_offdie(dwarf, offset + length, &unit_die) != NULL)
+ MC_dwarf_handle_children(info, &unit_die, &unit_die, NULL, NULL);
offset = next_offset;
}
// Sort the array by low_pc:
std::sort(info->functions_index.begin(), info->functions_index.end(),
- [](simgrid::mc::FunctionIndexEntry& a,
- simgrid::mc::FunctionIndexEntry& b)
+ [](simgrid::mc::FunctionIndexEntry const& a,
+ simgrid::mc::FunctionIndexEntry const& b)
{
return a.low_pc < b.low_pc;
});
MC_compare_variable);
for(simgrid::mc::Variable& variable : info->global_variables)
- if (variable.type_id) {
+ if (variable.type_id)
variable.type = simgrid::util::find_map_ptr(
info->types, variable.type_id);
- }
}
static void mc_post_process_scope(simgrid::mc::ObjectInformation* info, simgrid::mc::Frame* scope)
auto i = info->subprograms.find(scope->abstract_origin_id);
xbt_assert(i != info->subprograms.end(),
"Could not lookup abstract origin %" PRIx64,
- (uint64_t) scope->abstract_origin_id);
+ (std::uint64_t) scope->abstract_origin_id);
scope->name = i->second.name;
}
// Direct:
for (simgrid::mc::Variable& variable : scope->variables)
- if (variable.type_id) {
+ if (variable.type_id)
variable.type = simgrid::util::find_map_ptr(
info->types, variable.type_id);
- }
// Recursive post-processing of nested-scopes:
for (simgrid::mc::Frame& nested_scope : scope->scopes)
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) {
+ while (subtype->type == DW_TAG_typedef
+ || subtype->type == DW_TAG_volatile_type
+ || subtype->type == DW_TAG_const_type)
if (subtype->subtype)
subtype = subtype->subtype;
else
break;
- }
// Resolve full_type:
if (!subtype->name.empty() && subtype->byte_size == 0) {
