7f6a7a3752
This functionality is subsumed by DataBufferLLVM, which is also more efficient since it will try to mmap. However, we don't yet support mmaping writable private sections, and in some cases we were using ReadFileContents and then modifying the buffer. To address that I've added a flag to the DataBufferLLVM methods that allow you to map privately, which disables the mmaping path entirely. Eventually we should teach DataBufferLLVM to use mmap with writable private, but that is orthogonal to this effort. Differential Revision: https://reviews.llvm.org/D30622 llvm-svn: 297095
128 lines
4.5 KiB
C++
128 lines
4.5 KiB
C++
//===-- OptionValueFileSpec.cpp ---------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lldb/Interpreter/OptionValueFileSpec.h"
|
|
|
|
#include "lldb/Core/State.h"
|
|
#include "lldb/DataFormatters/FormatManager.h"
|
|
#include "lldb/Host/FileSystem.h"
|
|
#include "lldb/Interpreter/Args.h"
|
|
#include "lldb/Interpreter/CommandCompletions.h"
|
|
#include "lldb/Interpreter/CommandInterpreter.h"
|
|
#include "lldb/Utility/DataBufferLLVM.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
OptionValueFileSpec::OptionValueFileSpec(bool resolve)
|
|
: OptionValue(), m_current_value(), m_default_value(), m_data_sp(),
|
|
m_data_mod_time(),
|
|
m_completion_mask(CommandCompletions::eDiskFileCompletion),
|
|
m_resolve(resolve) {}
|
|
|
|
OptionValueFileSpec::OptionValueFileSpec(const FileSpec &value, bool resolve)
|
|
: OptionValue(), m_current_value(value), m_default_value(value),
|
|
m_data_sp(), m_data_mod_time(),
|
|
m_completion_mask(CommandCompletions::eDiskFileCompletion),
|
|
m_resolve(resolve) {}
|
|
|
|
OptionValueFileSpec::OptionValueFileSpec(const FileSpec ¤t_value,
|
|
const FileSpec &default_value,
|
|
bool resolve)
|
|
: OptionValue(), m_current_value(current_value),
|
|
m_default_value(default_value), m_data_sp(), m_data_mod_time(),
|
|
m_completion_mask(CommandCompletions::eDiskFileCompletion),
|
|
m_resolve(resolve) {}
|
|
|
|
void OptionValueFileSpec::DumpValue(const ExecutionContext *exe_ctx,
|
|
Stream &strm, uint32_t dump_mask) {
|
|
if (dump_mask & eDumpOptionType)
|
|
strm.Printf("(%s)", GetTypeAsCString());
|
|
if (dump_mask & eDumpOptionValue) {
|
|
if (dump_mask & eDumpOptionType)
|
|
strm.PutCString(" = ");
|
|
|
|
if (m_current_value) {
|
|
strm << '"' << m_current_value.GetPath().c_str() << '"';
|
|
}
|
|
}
|
|
}
|
|
|
|
Error OptionValueFileSpec::SetValueFromString(llvm::StringRef value,
|
|
VarSetOperationType op) {
|
|
Error error;
|
|
switch (op) {
|
|
case eVarSetOperationClear:
|
|
Clear();
|
|
NotifyValueChanged();
|
|
break;
|
|
|
|
case eVarSetOperationReplace:
|
|
case eVarSetOperationAssign:
|
|
if (value.size() > 0) {
|
|
// The setting value may have whitespace, double-quotes, or single-quotes
|
|
// around the file
|
|
// path to indicate that internal spaces are not word breaks. Strip off
|
|
// any ws & quotes
|
|
// from the start and end of the file path - we aren't doing any word //
|
|
// breaking here so
|
|
// the quoting is unnecessary. NB this will cause a problem if someone
|
|
// tries to specify
|
|
// a file path that legitimately begins or ends with a " or ' character,
|
|
// or whitespace.
|
|
value = value.trim("\"' \t");
|
|
m_value_was_set = true;
|
|
m_current_value.SetFile(value.str(), m_resolve);
|
|
m_data_sp.reset();
|
|
m_data_mod_time = llvm::sys::TimePoint<>();
|
|
NotifyValueChanged();
|
|
} else {
|
|
error.SetErrorString("invalid value string");
|
|
}
|
|
break;
|
|
|
|
case eVarSetOperationInsertBefore:
|
|
case eVarSetOperationInsertAfter:
|
|
case eVarSetOperationRemove:
|
|
case eVarSetOperationAppend:
|
|
case eVarSetOperationInvalid:
|
|
error = OptionValue::SetValueFromString(value, op);
|
|
break;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
lldb::OptionValueSP OptionValueFileSpec::DeepCopy() const {
|
|
return OptionValueSP(new OptionValueFileSpec(*this));
|
|
}
|
|
|
|
size_t OptionValueFileSpec::AutoComplete(
|
|
CommandInterpreter &interpreter, llvm::StringRef s, int match_start_point,
|
|
int max_return_elements, bool &word_complete, StringList &matches) {
|
|
word_complete = false;
|
|
matches.Clear();
|
|
CommandCompletions::InvokeCommonCompletionCallbacks(
|
|
interpreter, m_completion_mask, s, match_start_point, max_return_elements,
|
|
nullptr, word_complete, matches);
|
|
return matches.GetSize();
|
|
}
|
|
|
|
const lldb::DataBufferSP &
|
|
OptionValueFileSpec::GetFileContents(bool null_terminate) {
|
|
if (m_current_value) {
|
|
const auto file_mod_time = FileSystem::GetModificationTime(m_current_value);
|
|
if (m_data_sp && m_data_mod_time == file_mod_time)
|
|
return m_data_sp;
|
|
m_data_sp = DataBufferLLVM::CreateFromPath(m_current_value.GetPath(),
|
|
null_terminate);
|
|
m_data_mod_time = file_mod_time;
|
|
}
|
|
return m_data_sp;
|
|
}
|