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Add logging to minidump processor (#82). Part 2: add messages to the rest of

Browse source 
the processor.  r=ted.mielczarek

http://groups.google.com/group/google-breakpad-dev/browse_thread/thread/cf56b767383a5d4b


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@172 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
mmentovai 2007-05-21 20:09:33 +00:00
parent 08c8c4ddcf
commit 65571f17ed
17 changed files with 265 additions and 60 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
Makefile.am
View file

@ -128,14 +128,22 @@ TESTS_ENVIRONMENT =
src_processor_address_map_unittest_SOURCES = \
src/processor/address_map_unittest.cc
src_processor_address_map_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_basic_source_line_resolver_unittest_SOURCES = \
src/processor/basic_source_line_resolver_unittest.cc
src_processor_basic_source_line_resolver_unittest_LDADD = \
src/processor/basic_source_line_resolver.lo
src/processor/basic_source_line_resolver.lo \
src/processor/pathname_stripper.lo \
src/processor/logging.lo
src_processor_contained_range_map_unittest_SOURCES = \
src/processor/contained_range_map_unittest.cc
src_processor_contained_range_map_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_minidump_processor_unittest_SOURCES = \
src/processor/minidump_processor_unittest.cc
@ -159,9 +167,15 @@ src_processor_pathname_stripper_unittest_LDADD = \
src_processor_postfix_evaluator_unittest_SOURCES = \
src/processor/postfix_evaluator_unittest.cc
src_processor_postfix_evaluator_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_range_map_unittest_SOURCES = \
src/processor/range_map_unittest.cc
src_processor_range_map_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_stackwalker_selftest_SOURCES = \
src/processor/stackwalker_selftest.cc

35
Makefile.in
View file

@ -123,17 +123,20 @@ am_src_processor_address_map_unittest_OBJECTS = \
src/processor/address_map_unittest.$(OBJEXT)
src_processor_address_map_unittest_OBJECTS = \
$(am_src_processor_address_map_unittest_OBJECTS)
src_processor_address_map_unittest_LDADD = $(LDADD)
src_processor_address_map_unittest_DEPENDENCIES = \
src/processor/logging.lo src/processor/pathname_stripper.lo
am_src_processor_basic_source_line_resolver_unittest_OBJECTS = \
src/processor/basic_source_line_resolver_unittest.$(OBJEXT)
src_processor_basic_source_line_resolver_unittest_OBJECTS = $(am_src_processor_basic_source_line_resolver_unittest_OBJECTS)
src_processor_basic_source_line_resolver_unittest_DEPENDENCIES = \
src/processor/basic_source_line_resolver.lo
src/processor/basic_source_line_resolver.lo \
src/processor/pathname_stripper.lo src/processor/logging.lo
am_src_processor_contained_range_map_unittest_OBJECTS = \
src/processor/contained_range_map_unittest.$(OBJEXT)
src_processor_contained_range_map_unittest_OBJECTS = \
$(am_src_processor_contained_range_map_unittest_OBJECTS)
src_processor_contained_range_map_unittest_LDADD = $(LDADD)
src_processor_contained_range_map_unittest_DEPENDENCIES = \
src/processor/logging.lo src/processor/pathname_stripper.lo
am_src_processor_minidump_dump_OBJECTS = \
src/processor/minidump_dump.$(OBJEXT)
src_processor_minidump_dump_OBJECTS = \
@ -178,12 +181,14 @@ am_src_processor_postfix_evaluator_unittest_OBJECTS = \
src/processor/postfix_evaluator_unittest.$(OBJEXT)
src_processor_postfix_evaluator_unittest_OBJECTS = \
$(am_src_processor_postfix_evaluator_unittest_OBJECTS)
src_processor_postfix_evaluator_unittest_LDADD = $(LDADD)
src_processor_postfix_evaluator_unittest_DEPENDENCIES = \
src/processor/logging.lo src/processor/pathname_stripper.lo
am_src_processor_range_map_unittest_OBJECTS = \
src/processor/range_map_unittest.$(OBJEXT)
src_processor_range_map_unittest_OBJECTS = \
$(am_src_processor_range_map_unittest_OBJECTS)
src_processor_range_map_unittest_LDADD = $(LDADD)
src_processor_range_map_unittest_DEPENDENCIES = \
src/processor/logging.lo src/processor/pathname_stripper.lo
am_src_processor_stackwalker_selftest_OBJECTS = \
src/processor/stackwalker_selftest.$(OBJEXT)
src_processor_stackwalker_selftest_OBJECTS = \
@ -429,15 +434,25 @@ TESTS_ENVIRONMENT =
src_processor_address_map_unittest_SOURCES = \
src/processor/address_map_unittest.cc
src_processor_address_map_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_basic_source_line_resolver_unittest_SOURCES = \
src/processor/basic_source_line_resolver_unittest.cc
src_processor_basic_source_line_resolver_unittest_LDADD = \
src/processor/basic_source_line_resolver.lo
src/processor/basic_source_line_resolver.lo \
src/processor/pathname_stripper.lo \
src/processor/logging.lo
src_processor_contained_range_map_unittest_SOURCES = \
src/processor/contained_range_map_unittest.cc
src_processor_contained_range_map_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_minidump_processor_unittest_SOURCES = \
src/processor/minidump_processor_unittest.cc
@ -463,9 +478,17 @@ src_processor_pathname_stripper_unittest_LDADD = \
src_processor_postfix_evaluator_unittest_SOURCES = \
src/processor/postfix_evaluator_unittest.cc
src_processor_postfix_evaluator_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_range_map_unittest_SOURCES = \
src/processor/range_map_unittest.cc
src_processor_range_map_unittest_LDADD = \
src/processor/logging.lo \
src/processor/pathname_stripper.lo
src_processor_stackwalker_selftest_SOURCES = \
src/processor/stackwalker_selftest.cc

12
src/processor/address_map-inl.h
View file

@ -36,7 +36,10 @@
#ifndef PROCESSOR_ADDRESS_MAP_INL_H__
#define PROCESSOR_ADDRESS_MAP_INL_H__
#include <cassert>
#include "processor/address_map.h"
#include "processor/logging.h"
namespace google_breakpad {
@ -45,8 +48,11 @@ bool AddressMap<AddressType, EntryType>::Store(const AddressType &address,
const EntryType &entry) {
// Ensure that the specified address doesn't conflict with something already
// in the map.
if (map_.find(address) != map_.end())
if (map_.find(address) != map_.end()) {
BPLOG(INFO) << "Store failed, address " << HexString(address) <<
" is already present";
return false;
}
map_.insert(MapValue(address, entry));
return true;
@ -56,8 +62,8 @@ template<typename AddressType, typename EntryType>
bool AddressMap<AddressType, EntryType>::Retrieve(
const AddressType &address,
EntryType *entry, AddressType *entry_address) const {
if (!entry)
return false;
BPLOG_IF(ERROR, !entry) << "AddressMap::Retrieve requires |entry|";
assert(entry);
// upper_bound gives the first element whose key is greater than address,
// but we want the first element whose key is less than or equal to address.

4
src/processor/address_map.h
View file

@ -53,8 +53,8 @@ class AddressMap {
bool Store(const AddressType &address, const EntryType &entry);
// Locates the entry stored at the highest address less than or equal to
// the address argument. If there is no such range, or if there is a
// parameter error, returns false. The entry is returned in entry. If
// the address argument. If there is no such range, returns false. The
// entry is returned in entry, which is a required argument. If
// entry_address is not NULL, it will be set to the address that the entry
// was stored at.
bool Retrieve(const AddressType &address,

1
src/processor/address_map_unittest.cc
View file

@ -107,7 +107,6 @@ static bool DoAddressMapTest() {
ASSERT_EQ(entry->id(), 1);
ASSERT_EQ(address, 10);
ASSERT_TRUE(test_map.Retrieve(11, &entry, &address));
ASSERT_FALSE(test_map.Retrieve(11, NULL, &address)); // parameter error
ASSERT_TRUE(test_map.Retrieve(11, &entry, NULL)); // NULL ok here
// Add some more elements.

18
src/processor/basic_code_modules.cc
View file

@ -39,6 +39,7 @@
#include "processor/basic_code_modules.h"
#include "google_breakpad/processor/code_module.h"
#include "processor/linked_ptr.h"
#include "processor/logging.h"
#include "processor/range_map-inl.h"
namespace google_breakpad {
@ -46,6 +47,8 @@ namespace google_breakpad {
BasicCodeModules::BasicCodeModules(const CodeModules *that)
: main_address_(0),
map_(new RangeMap<u_int64_t, linked_ptr<const CodeModule> >()) {
BPLOG_IF(ERROR, !that) << "BasicCodeModules::BasicCodeModules requires "
"|that|";
assert(that);
const CodeModule *main_module = that->GetMainModule();
@ -61,8 +64,11 @@ BasicCodeModules::BasicCodeModules(const CodeModules *that)
// entire list, and GetModuleAtIndex may be faster than
// GetModuleAtSequence.
const CodeModule *module = that->GetModuleAtIndex(module_sequence)->Copy();
map_->StoreRange(module->base_address(), module->size(),
linked_ptr<const CodeModule>(module));
if (!map_->StoreRange(module->base_address(), module->size(),
linked_ptr<const CodeModule>(module))) {
BPLOG(ERROR) << "Module " << module->code_file() <<
" could not be stored";
}
}
}
@ -77,8 +83,10 @@ unsigned int BasicCodeModules::module_count() const {
const CodeModule* BasicCodeModules::GetModuleForAddress(
u_int64_t address) const {
linked_ptr<const CodeModule> module;
if (!map_->RetrieveRange(address, &module, NULL, NULL))
if (!map_->RetrieveRange(address, &module, NULL, NULL)) {
BPLOG(INFO) << "No module at " << HexString(address);
return NULL;
}
return module.get();
}
@ -90,8 +98,10 @@ const CodeModule* BasicCodeModules::GetMainModule() const {
const CodeModule* BasicCodeModules::GetModuleAtSequence(
unsigned int sequence) const {
linked_ptr<const CodeModule> module;
if (!map_->RetrieveRangeAtIndex(sequence, &module, NULL, NULL))
if (!map_->RetrieveRangeAtIndex(sequence, &module, NULL, NULL)) {
BPLOG(ERROR) << "RetrieveRangeAtIndex failed for sequence " << sequence;
return NULL;
}
return module.get();
}

56
src/processor/basic_source_line_resolver.cc
View file

@ -145,7 +145,7 @@ class BasicSourceLineResolver::Module {
static bool Tokenize(char *line, int max_tokens, vector<char*> *tokens);
// Parses a file declaration
void ParseFile(char *file_line);
bool ParseFile(char *file_line);
// Parses a function declaration, returning a new Function object.
Function* ParseFunction(char *function_line);
@ -188,9 +188,13 @@ bool BasicSourceLineResolver::LoadModule(const string &module_name,
const string &map_file) {
// Make sure we don't already have a module with the given name.
if (modules_->find(module_name) != modules_->end()) {
BPLOG(INFO) << "Symbols for module " << module_name << " already loaded";
return false;
}
BPLOG(INFO) << "Loading symbols for module " << module_name << " from " <<
map_file;
Module *module = new Module(module_name);
if (!module->LoadMap(map_file)) {
delete module;
@ -216,28 +220,56 @@ StackFrameInfo* BasicSourceLineResolver::FillSourceLineInfo(
return NULL;
}
class AutoFileCloser {
public:
AutoFileCloser(FILE *file) : file_(file) {}
~AutoFileCloser() {
if (file_)
fclose(file_);
}
private:
FILE *file_;
};
bool BasicSourceLineResolver::Module::LoadMap(const string &map_file) {
FILE *f = fopen(map_file.c_str(), "r");
if (!f) {
string error_string;
int error_code = ErrnoString(&error_string);
BPLOG(ERROR) << "Could not open " << map_file <<
", error " << error_code << ": " << error_string;
return false;
}
AutoFileCloser closer(f);
// TODO(mmentovai): this might not be large enough to handle really long
// lines, which might be present for FUNC lines of highly-templatized
// code.
char buffer[8192];
linked_ptr<Function> cur_func;
int line_number = 0;
while (fgets(buffer, sizeof(buffer), f)) {
++line_number;
if (strncmp(buffer, "FILE ", 5) == 0) {
ParseFile(buffer);
if (!ParseFile(buffer)) {
BPLOG(ERROR) << "ParseFile failed at " <<
map_file << ":" << line_number;
return false;
}
} else if (strncmp(buffer, "STACK ", 6) == 0) {
if (!ParseStackInfo(buffer)) {
BPLOG(ERROR) << "ParseStackInfo failed at " <<
map_file << ":" << line_number;
return false;
}
} else if (strncmp(buffer, "FUNC ", 5) == 0) {
cur_func.reset(ParseFunction(buffer));
if (!cur_func.get()) {
BPLOG(ERROR) << "ParseFunction failed at " <<
map_file << ":" << line_number;
return false;
}
// StoreRange will fail if the function has an invalid address or size.
@ -249,6 +281,8 @@ bool BasicSourceLineResolver::Module::LoadMap(const string &map_file) {
cur_func.reset();
if (!ParsePublicSymbol(buffer)) {
BPLOG(ERROR) << "ParsePublicSymbol failed at " <<
map_file << ":" << line_number;
return false;
}
} else if (strncmp(buffer, "MODULE ", 7) == 0) {
@ -260,10 +294,14 @@ bool BasicSourceLineResolver::Module::LoadMap(const string &map_file) {
// MODULE <guid> <age> <filename>
} else {
if (!cur_func.get()) {
BPLOG(ERROR) << "Found source line data without a function at " <<
map_file << ":" << line_number;
return false;
}
Line *line = ParseLine(buffer);
if (!line) {
BPLOG(ERROR) << "ParseLine failed at " <<
map_file << ":" << line_number;
return false;
}
cur_func->lines.StoreRange(line->address, line->size,
@ -271,7 +309,6 @@ bool BasicSourceLineResolver::Module::LoadMap(const string &map_file) {
}
}
fclose(f);
return true;
}
@ -387,24 +424,27 @@ bool BasicSourceLineResolver::Module::Tokenize(char *line, int max_tokens,
return tokens->size() == static_cast<unsigned int>(max_tokens);
}
void BasicSourceLineResolver::Module::ParseFile(char *file_line) {
bool BasicSourceLineResolver::Module::ParseFile(char *file_line) {
// FILE <id> <filename>
file_line += 5; // skip prefix
vector<char*> tokens;
if (!Tokenize(file_line, 2, &tokens)) {
return;
return false;
}
int index = atoi(tokens[0]);
if (index < 0) {
return;
return false;
}
char *filename = tokens[1];
if (filename) {
files_.insert(make_pair(index, string(filename)));
if (!filename) {
return false;
}
files_.insert(make_pair(index, string(filename)));
return true;
}
BasicSourceLineResolver::Function*

26
src/processor/contained_range_map-inl.h
View file

@ -37,7 +37,10 @@
#define PROCESSOR_CONTAINED_RANGE_MAP_INL_H__
#include <cassert>
#include "processor/contained_range_map.h"
#include "processor/logging.h"
namespace google_breakpad {
@ -56,8 +59,11 @@ bool ContainedRangeMap<AddressType, EntryType>::StoreRange(
AddressType high = base + size - 1;
// Check for undersize or overflow.
if (size <= 0 || high < base)
if (size <= 0 || high < base) {
BPLOG(INFO) << "StoreRange failed, " << HexString(base) << "+" <<
HexString(size) << ", " << HexString(high);
return false;
}
if (!map_)
map_ = new AddressToRangeMap();
@ -74,8 +80,11 @@ bool ContainedRangeMap<AddressType, EntryType>::StoreRange(
// range's, it violates the containment rules, and an attempt to store
// it must fail. iterator_base->first contains the key, which was the
// containing child's high address.
if (iterator_base->second->base_ == base && iterator_base->first == high)
if (iterator_base->second->base_ == base && iterator_base->first == high) {
BPLOG(INFO) << "StoreRange failed, identical range is already "
"present: " << HexString(base) << "+" << HexString(size);
return false;
}
// Pass the new range on to the child to attempt to store.
return iterator_base->second->StoreRange(base, size, entry);
@ -92,6 +101,12 @@ bool ContainedRangeMap<AddressType, EntryType>::StoreRange(
// fully. Partial containment isn't allowed.
if ((iterator_base != iterator_end && base > iterator_base->second->base_) ||
(contains_high && high < iterator_high->first)) {
// TODO(mmentovai): Some symbol files will trip this check frequently
// on STACK lines. Too many messages will be produced. These are more
// suitable for a DEBUG channel than an INFO channel.
// BPLOG(INFO) << "StoreRange failed, new range partially contains "
// "existing range: " << HexString(base) << "+" <<
// HexString(size);
return false;
}
@ -130,7 +145,12 @@ bool ContainedRangeMap<AddressType, EntryType>::StoreRange(
template<typename AddressType, typename EntryType>
bool ContainedRangeMap<AddressType, EntryType>::RetrieveRange(
const AddressType &address, EntryType *entry) const {
if (!entry || !map_)
BPLOG_IF(ERROR, !entry) << "ContainedRangeMap::RetrieveRange requires "
"|entry|";
assert(entry);
// If nothing was ever stored, then there's nothing to retrieve.
if (!map_)
return false;
// Get an iterator to the child range whose high address is equal to or

3
src/processor/contained_range_map.h
View file

@ -92,8 +92,7 @@ class ContainedRangeMap {
// the specified address. This method will only return entries held by
// child ranges, and not the entry contained by |this|. This is necessary
// to support a sparsely-populated root range. If no descendant range
// encompasses the address, or if there is a parameter error, returns
// false.
// encompasses the address, returns false.
bool RetrieveRange(const AddressType &address, EntryType *entry) const;
// Removes all children. Note that Clear only removes descendants,

4
src/processor/minidump.cc
View file

@ -2650,9 +2650,9 @@ bool MinidumpMiscInfo::Read(u_int32_t expected_size) {
}
}
if (misc_info_.size_of_info != expected_size) {
if (expected_size != misc_info_.size_of_info) {
BPLOG(ERROR) << "MinidumpMiscInfo size mismatch, " <<
misc_info_.size_of_info << " != " << expected_size;
expected_size << " != " << misc_info_.size_of_info;
return false;
}

40
src/processor/postfix_evaluator-inl.h
View file

@ -27,6 +27,7 @@
#include "processor/postfix_evaluator.h"
#include "google_breakpad/processor/memory_region.h"
#include "processor/logging.h"
namespace google_breakpad {
@ -83,8 +84,11 @@ bool PostfixEvaluator<ValueType>::Evaluate(const string &expression,
if (operation != BINARY_OP_NONE) {
// Get the operands.
ValueType operand1, operand2;
if (!PopValues(&operand1, &operand2))
if (!PopValues(&operand1, &operand2)) {
BPLOG(ERROR) << "Could not PopValues to get two values for binary "
"operation " << token << ": " << expression;
return false;
}
// Perform the operation.
ValueType result;
@ -107,6 +111,7 @@ bool PostfixEvaluator<ValueType>::Evaluate(const string &expression,
case BINARY_OP_NONE:
// This will not happen, but compilers will want a default or
// BINARY_OP_NONE case.
BPLOG(ERROR) << "Not reached!";
return false;
break;
}
@ -115,32 +120,51 @@ bool PostfixEvaluator<ValueType>::Evaluate(const string &expression,
PushValue(result);
} else if (token == "^") {
// ^ for unary dereference. Can't dereference without memory.
if (!memory_)
if (!memory_) {
BPLOG(ERROR) << "Attempt to dereference without memory: " <<
expression;
return false;
}
ValueType address;
if (!PopValue(&address))
if (!PopValue(&address)) {
BPLOG(ERROR) << "Could not PopValue to get value to derefence: " <<
expression;
return false;
}
ValueType value;
if (!memory_->GetMemoryAtAddress(address, &value))
if (!memory_->GetMemoryAtAddress(address, &value)) {
BPLOG(ERROR) << "Could not dereference memory at address " <<
HexString(address) << ": " << expression;
return false;
}
PushValue(value);
} else if (token == "=") {
// = for assignment.
ValueType value;
if (!PopValue(&value))
if (!PopValue(&value)) {
BPLOG(ERROR) << "Could not PopValue to get value to assign: " <<
expression;
return false;
}
// Assignment is only meaningful when assigning into an identifier.
// The identifier must name a variable, not a constant. Variables
// begin with '$'.
string identifier;
if (PopValueOrIdentifier(NULL, &identifier) != POP_RESULT_IDENTIFIER)
if (PopValueOrIdentifier(NULL, &identifier) != POP_RESULT_IDENTIFIER) {
BPLOG(ERROR) << "PopValueOrIdentifier returned a value, but an "
"identifier is needed to assign " <<
HexString(value) << ": " << expression;
return false;
if (identifier.empty() || identifier[0] != '$')
}
if (identifier.empty() || identifier[0] != '$') {
BPLOG(ERROR) << "Can't assign " << HexString(value) << " to " <<
identifier << ": " << expression;
return false;
}
(*dictionary_)[identifier] = value;
if (assigned)
@ -157,6 +181,7 @@ bool PostfixEvaluator<ValueType>::Evaluate(const string &expression,
// If there's anything left on the stack, it indicates incomplete execution.
// This is a failure case. If the stack is empty, evalution was complete
// and successful.
BPLOG_IF(ERROR, !stack_.empty()) << "Incomplete execution: " << expression;
return stack_.empty();
}
@ -210,6 +235,7 @@ bool PostfixEvaluator<ValueType>::PopValue(ValueType *value) {
if (iterator == dictionary_->end()) {
// The identifier wasn't found in the dictionary. Don't imply any
// default value, just fail.
BPLOG(ERROR) << "Identifier " << token << " not in dictionary";
return false;
}

40
src/processor/range_map-inl.h
View file

@ -38,6 +38,7 @@
#include "processor/range_map.h"
#include "processor/logging.h"
namespace google_breakpad {
@ -50,8 +51,15 @@ bool RangeMap<AddressType, EntryType>::StoreRange(const AddressType &base,
AddressType high = base + size - 1;
// Check for undersize or overflow.
if (size <= 0 || high < base)
if (size <= 0 || high < base) {
// The processor will hit this case too frequently with common symbol
// files in the size == 0 case, which is more suited to a DEBUG channel.
// Filter those out since there's no DEBUG channel at the moment.
BPLOG_IF(INFO, size != 0) << "StoreRange failed, " << HexString(base) <<
"+" << HexString(size) << ", " <<
HexString(high);
return false;
}
// Ensure that this range does not overlap with another one already in the
// map.
@ -62,14 +70,27 @@ bool RangeMap<AddressType, EntryType>::StoreRange(const AddressType &base,
// Some other range begins in the space used by this range. It may be
// contained within the space used by this range, or it may extend lower.
// Regardless, it is an error.
AddressType other_base = iterator_base->second.base();
AddressType other_size = iterator_base->first - other_base + 1;
BPLOG(INFO) << "StoreRange failed, an existing range is contained by or "
"extends lower than the new range: new " <<
HexString(base) << "+" << HexString(size) << ", existing " <<
HexString(other_base) << "+" << HexString(other_size);
return false;
}
if (iterator_high != map_.end()) {
if (iterator_high->second.base() <= high) {
// The range above this one overlaps with this one. It may fully
// contain this range, or it may begin within this range and extend
// contain this range, or it may begin within this range and extend
// higher. Regardless, it's an error.
AddressType other_base = iterator_high->second.base();
AddressType other_size = iterator_high->first - other_base + 1;
BPLOG(INFO) << "StoreRange failed, an existing range contains or "
"extends higher than the new range: new " <<
HexString(base) << "+" << HexString(size) <<
", existing " <<
HexString(other_base) << "+" << HexString(other_size);
return false;
}
}
@ -85,8 +106,8 @@ template<typename AddressType, typename EntryType>
bool RangeMap<AddressType, EntryType>::RetrieveRange(
const AddressType &address, EntryType *entry,
AddressType *entry_base, AddressType *entry_size) const {
if (!entry)
return false;
BPLOG_IF(ERROR, !entry) << "RangeMap::RetrieveRange requires |entry|";
assert(entry);
MapConstIterator iterator = map_.lower_bound(address);
if (iterator == map_.end())
@ -114,8 +135,8 @@ template<typename AddressType, typename EntryType>
bool RangeMap<AddressType, EntryType>::RetrieveNearestRange(
const AddressType &address, EntryType *entry,
AddressType *entry_base, AddressType *entry_size) const {
if (!entry)
return false;
BPLOG_IF(ERROR, !entry) << "RangeMap::RetrieveNearestRange requires |entry|";
assert(entry);
// If address is within a range, RetrieveRange can handle it.
if (RetrieveRange(address, entry, entry_base, entry_size))
@ -145,8 +166,13 @@ template<typename AddressType, typename EntryType>
bool RangeMap<AddressType, EntryType>::RetrieveRangeAtIndex(
int index, EntryType *entry,
AddressType *entry_base, AddressType *entry_size) const {
if (!entry || index >= GetCount())
BPLOG_IF(ERROR, !entry) << "RangeMap::RetrieveRangeAtIndex requires |entry|";
assert(entry);
if (index >= GetCount()) {
BPLOG(ERROR) << "Index out of range: " << index << "/" << GetCount();
return false;
}
// Walk through the map. Although it's ordered, it's not a vector, so it
// can't be addressed directly by index.

11
src/processor/range_map.h
View file

@ -60,9 +60,8 @@ class RangeMap {
const EntryType &entry);
// Locates the range encompassing the supplied address. If there is
// no such range, or if there is a parameter error, returns false.
// entry_base and entry_size, if non-NULL, are set to the base and size
// of the entry's range.
// no such range, returns false. entry_base and entry_size, if non-NULL,
// are set to the base and size of the entry's range.
bool RetrieveRange(const AddressType &address, EntryType *entry,
AddressType *entry_base, AddressType *entry_size) const;
@ -77,9 +76,9 @@ class RangeMap {
// Treating all ranges as a list ordered by the address spaces that they
// occupy, locates the range at the index specified by index. Returns
// false if index is larger than the number of ranges stored, or if another
// parameter error occurs. entry_base and entry_size, if non-NULL, are set
// to the base and size of the entry's range.
// false if index is larger than the number of ranges stored. entry_base
// and entry_size, if non-NULL, are set to the base and size of the entry's
// range.
//
// RetrieveRangeAtIndex is not optimized for speedy operation.
bool RetrieveRangeAtIndex(int index, EntryType *entry,

26
src/processor/simple_symbol_supplier.cc
View file

@ -41,6 +41,7 @@
#include "processor/simple_symbol_supplier.h"
#include "google_breakpad/processor/code_module.h"
#include "google_breakpad/processor/system_info.h"
#include "processor/logging.h"
#include "processor/pathname_stripper.h"
namespace google_breakpad {
@ -53,7 +54,11 @@ static bool file_exists(const string &file_name) {
SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFile(
const CodeModule *module, const SystemInfo *system_info,
string *symbol_file) {
BPLOG_IF(ERROR, !symbol_file) << "SimpleSymbolSupplier::GetSymbolFile "
"requires |symbol_file|";
assert(symbol_file);
symbol_file->clear();
for (unsigned int path_index = 0; path_index < paths_.size(); ++path_index) {
SymbolResult result;
if ((result = GetSymbolFileAtPath(module, system_info, paths_[path_index],
@ -67,7 +72,11 @@ SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFile(
SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFileAtPath(
const CodeModule *module, const SystemInfo *system_info,
const string &root_path, string *symbol_file) {
BPLOG_IF(ERROR, !symbol_file) << "SimpleSymbolSupplier::GetSymbolFileAtPath "
"requires |symbol_file|";
assert(symbol_file);
symbol_file->clear();
if (!module)
return NOT_FOUND;
@ -77,15 +86,24 @@ SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFileAtPath(
// Append the debug (pdb) file name as a directory name.
path.append("/");
string debug_file_name = PathnameStripper::File(module->debug_file());
if (debug_file_name.empty())
if (debug_file_name.empty()) {
BPLOG(ERROR) << "Can't construct symbol file path without debug_file "
"(code_file = " <<
PathnameStripper::File(module->code_file()) << ")";
return NOT_FOUND;
}
path.append(debug_file_name);
// Append the identifier as a directory name.
path.append("/");
string identifier = module->debug_identifier();
if (identifier.empty())
if (identifier.empty()) {
BPLOG(ERROR) << "Can't construct symbol file path without debug_identifier "
"(code_file = " <<
PathnameStripper::File(module->code_file()) <<
", debug_file = " << debug_file_name << ")";
return NOT_FOUND;
}
path.append(identifier);
// Transform the debug file name into one ending in .sym. If the existing
@ -103,8 +121,10 @@ SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFileAtPath(
}
path.append(".sym");
if (!file_exists(path))
if (!file_exists(path)) {
BPLOG(INFO) << "No symbol file at " << path;
return NOT_FOUND;
}
*symbol_file = path;
return FOUND;

9
src/processor/stackwalker.cc
View file

@ -45,6 +45,7 @@
#include "google_breakpad/processor/stack_frame.h"
#include "google_breakpad/processor/symbol_supplier.h"
#include "processor/linked_ptr.h"
#include "processor/logging.h"
#include "processor/scoped_ptr.h"
#include "processor/stack_frame_info.h"
#include "processor/stackwalker_ppc.h"
@ -67,6 +68,7 @@ Stackwalker::Stackwalker(const SystemInfo *system_info,
bool Stackwalker::Walk(CallStack *stack) {
BPLOG_IF(ERROR, !stack) << "Stackwalker::Walk requires |stack|";
assert(stack);
stack->Clear();
@ -139,8 +141,10 @@ Stackwalker* Stackwalker::StackwalkerForCPU(
const CodeModules *modules,
SymbolSupplier *supplier,
SourceLineResolverInterface *resolver) {
if (!context)
if (!context) {
BPLOG(ERROR) << "Can't choose a stackwalker implementation without context";
return NULL;
}
Stackwalker *cpu_stackwalker = NULL;
@ -161,6 +165,9 @@ Stackwalker* Stackwalker::StackwalkerForCPU(
break;
}
BPLOG_IF(ERROR, !cpu_stackwalker) << "Unknown CPU type " << HexString(cpu) <<
", can't choose a stackwalker "
"implementation";
return cpu_stackwalker;
}

12
src/processor/stackwalker_ppc.cc
View file

@ -38,6 +38,7 @@
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/memory_region.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "processor/logging.h"
namespace google_breakpad {
@ -54,14 +55,19 @@ StackwalkerPPC::StackwalkerPPC(const SystemInfo *system_info,
// This implementation only covers 32-bit ppc CPUs. The limits of the
// supplied stack are invalid. Mark memory_ = NULL, which will cause
// stackwalking to fail.
BPLOG(ERROR) << "Memory out of range for stackwalking: " <<
HexString(memory_->GetBase()) << "+" <<
HexString(memory_->GetSize());
memory_ = NULL;
}
}
StackFrame* StackwalkerPPC::GetContextFrame() {
if (!context_ || !memory_)
if (!context_ || !memory_) {
BPLOG(ERROR) << "Can't get context frame without context or memory";
return NULL;
}
StackFramePPC *frame = new StackFramePPC();
@ -78,8 +84,10 @@ StackFrame* StackwalkerPPC::GetContextFrame() {
StackFrame* StackwalkerPPC::GetCallerFrame(
const CallStack *stack,
const vector< linked_ptr<StackFrameInfo> > &stack_frame_info) {
if (!memory_ || !stack)
if (!memory_ || !stack) {
BPLOG(ERROR) << "Can't get caller frame without memory or stack";
return NULL;
}
// The instruction pointers for previous frames are saved on the stack.
// The typical ppc calling convention is for the called procedure to store

12
src/processor/stackwalker_x86.cc
View file

@ -42,6 +42,7 @@
#include "google_breakpad/processor/memory_region.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "processor/linked_ptr.h"
#include "processor/logging.h"
#include "processor/stack_frame_info.h"
namespace google_breakpad {
@ -58,14 +59,19 @@ StackwalkerX86::StackwalkerX86(const SystemInfo *system_info,
if (memory_->GetBase() + memory_->GetSize() - 1 > 0xffffffff) {
// The x86 is a 32-bit CPU, the limits of the supplied stack are invalid.
// Mark memory_ = NULL, which will cause stackwalking to fail.
BPLOG(ERROR) << "Memory out of range for stackwalking: " <<
HexString(memory_->GetBase()) << "+" <<
HexString(memory_->GetSize());
memory_ = NULL;
}
}
StackFrame* StackwalkerX86::GetContextFrame() {
if (!context_ || !memory_)
if (!context_ || !memory_) {
BPLOG(ERROR) << "Can't get context frame without context or memory";
return NULL;
}
StackFrameX86 *frame = new StackFrameX86();
@ -82,8 +88,10 @@ StackFrame* StackwalkerX86::GetContextFrame() {
StackFrame* StackwalkerX86::GetCallerFrame(
const CallStack *stack,
const vector< linked_ptr<StackFrameInfo> > &stack_frame_info) {
if (!memory_ || !stack)
if (!memory_ || !stack) {
BPLOG(ERROR) << "Can't get caller frame without memory or stack";
return NULL;
}
StackFrameX86 *last_frame = static_cast<StackFrameX86*>(
stack->frames()->back());