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Avoid endl when writing symbol files

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endl flushes output after each line. Using "\n" instead significantly improves
I/O efficiency.

Change-Id: If6a5549fc3613ca3a7c9a71838ec36c5b7a20580
Reviewed-on: https://chromium-review.googlesource.com/1077626
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
This commit is contained in:
Aaron Dierking 2018-05-29 16:53:53 -07:00 committed by Lei Zhang
parent 27c001192b
commit 7b3afa9258
1 changed files with 8 additions and 9 deletions
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17
src/common/module.cc
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@ -44,7 +44,6 @@
namespace google_breakpad {
using std::dec;
using std::endl;
using std::hex;
@ -233,12 +232,12 @@ bool Module::WriteRuleMap(const RuleMap &rule_map, std::ostream &stream) {
bool Module::Write(std::ostream &stream, SymbolData symbol_data) {
stream << "MODULE " << os_ << " " << architecture_ << " "
<< id_ << " " << name_ << endl;
<< id_ << " " << name_ << "\n";
if (!stream.good())
return ReportError();
if (!code_id_.empty()) {
stream << "INFO CODE_ID " << code_id_ << endl;
stream << "INFO CODE_ID " << code_id_ << "\n";
}
if (symbol_data != ONLY_CFI) {
@ -249,7 +248,7 @@ bool Module::Write(std::ostream &stream, SymbolData symbol_data) {
file_it != files_.end(); ++file_it) {
File *file = file_it->second;
if (file->source_id >= 0) {
stream << "FILE " << file->source_id << " " << file->name << endl;
stream << "FILE " << file->source_id << " " << file->name << "\n";
if (!stream.good())
return ReportError();
}
@ -263,7 +262,7 @@ bool Module::Write(std::ostream &stream, SymbolData symbol_data) {
<< (func->address - load_address_) << " "
<< func->size << " "
<< func->parameter_size << " "
<< func->name << dec << endl;
<< func->name << dec << "\n";
if (!stream.good())
return ReportError();
@ -274,7 +273,7 @@ bool Module::Write(std::ostream &stream, SymbolData symbol_data) {
<< line_it->size << " "
<< dec
<< line_it->number << " "
<< line_it->file->source_id << endl;
<< line_it->file->source_id << "\n";
if (!stream.good())
return ReportError();
}
@ -286,7 +285,7 @@ bool Module::Write(std::ostream &stream, SymbolData symbol_data) {
Extern *ext = *extern_it;
stream << "PUBLIC " << hex
<< (ext->address - load_address_) << " 0 "
<< ext->name << dec << endl;
<< ext->name << dec << "\n";
}
}
@ -303,7 +302,7 @@ bool Module::Write(std::ostream &stream, SymbolData symbol_data) {
|| !WriteRuleMap(entry->initial_rules, stream))
return ReportError();
stream << endl;
stream << "\n";
// Write out this entry's delta rules as 'STACK CFI' records.
for (RuleChangeMap::const_iterator delta_it = entry->rule_changes.begin();
@ -314,7 +313,7 @@ bool Module::Write(std::ostream &stream, SymbolData symbol_data) {
|| !WriteRuleMap(delta_it->second, stream))
return ReportError();
stream << endl;
stream << "\n";
}
}
}