//===-- BreakpointIDList.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/Breakpoint/BreakpointIDList.h"
#include "lldb/Breakpoint/Breakpoint.h"
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Interpreter/Args.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
//----------------------------------------------------------------------
// class BreakpointIDList
//----------------------------------------------------------------------
BreakpointIDList::BreakpointIDList () :
m_invalid_id (LLDB_INVALID_BREAK_ID, LLDB_INVALID_BREAK_ID)
{
}
BreakpointIDList::~BreakpointIDList ()
{
}
size_t
BreakpointIDList::GetSize()
{
return m_breakpoint_ids.size();
}
BreakpointID &
BreakpointIDList::GetBreakpointIDAtIndex (size_t index)
{
if (index < m_breakpoint_ids.size())
return m_breakpoint_ids[index];
else
return m_invalid_id;
}
bool
BreakpointIDList::RemoveBreakpointIDAtIndex (size_t index)
{
if (index >= m_breakpoint_ids.size())
return false;
m_breakpoint_ids.erase (m_breakpoint_ids.begin() + index);
return true;
}
void
BreakpointIDList::Clear()
{
m_breakpoint_ids.clear ();
}
bool
BreakpointIDList::AddBreakpointID (BreakpointID bp_id)
{
m_breakpoint_ids.push_back (bp_id);
return true; // We don't do any verification in this function, so always return true.
}
bool
BreakpointIDList::AddBreakpointID (const char *bp_id_str)
{
BreakpointID temp_bp_id;
break_id_t bp_id;
break_id_t loc_id;
bool success = BreakpointID::ParseCanonicalReference (bp_id_str, &bp_id, &loc_id);
if (success)
{
temp_bp_id.SetID (bp_id, loc_id);
m_breakpoint_ids.push_back (temp_bp_id);
}
return success;
}
bool
BreakpointIDList::FindBreakpointID (BreakpointID &bp_id, size_t *position)
{
for (size_t i = 0; i < m_breakpoint_ids.size(); ++i)
{
BreakpointID tmp_id = m_breakpoint_ids[i];
if (tmp_id.GetBreakpointID() == bp_id.GetBreakpointID()
&& tmp_id.GetLocationID() == bp_id.GetLocationID())
{
*position = i;
return true;
}
}
return false;
}
bool
BreakpointIDList::FindBreakpointID (const char *bp_id_str, size_t *position)
{
BreakpointID temp_bp_id;
break_id_t bp_id;
break_id_t loc_id;
if (BreakpointID::ParseCanonicalReference (bp_id_str, &bp_id, &loc_id))
{
temp_bp_id.SetID (bp_id, loc_id);
return FindBreakpointID (temp_bp_id, position);
}
else
return false;
}
void
BreakpointIDList::InsertStringArray (const char **string_array, size_t array_size, CommandReturnObject &result)
{
if (string_array == NULL)
return;
for (uint32_t i = 0; i < array_size; ++i)
{
break_id_t bp_id;
break_id_t loc_id;
if (BreakpointID::ParseCanonicalReference (string_array[i], &bp_id, &loc_id))
{
if (bp_id != LLDB_INVALID_BREAK_ID)
{
BreakpointID temp_bp_id(bp_id, loc_id);
m_breakpoint_ids.push_back (temp_bp_id);
}
else
{
result.AppendErrorWithFormat ("'%s' is not a valid breakpoint ID.\n", string_array[i]);
result.SetStatus (eReturnStatusFailed);
return;
}
}
}
result.SetStatus (eReturnStatusSuccessFinishNoResult);
}
// This function takes OLD_ARGS, which is usually the result of breaking the command string arguments into
// an array of space-separated strings, and searches through the arguments for any breakpoint ID range specifiers.
// Any string in the array that is not part of an ID range specifier is copied directly into NEW_ARGS. If any
// ID range specifiers are found, the range is interpreted and a list of canonical breakpoint IDs corresponding to
// all the current breakpoints and locations in the range are added to NEW_ARGS. When this function is done,
// NEW_ARGS should be a copy of OLD_ARGS, with and ID range specifiers replaced by the members of the range.
void
BreakpointIDList::FindAndReplaceIDRanges (Args &old_args, Target *target, CommandReturnObject &result,
Args &new_args)
{
std::string range_start;
const char *range_end;
const char *current_arg;
const size_t num_old_args = old_args.GetArgumentCount();
for (size_t i = 0; i < num_old_args; ++i)
{
bool is_range = false;
current_arg = old_args.GetArgumentAtIndex (i);
size_t range_start_len = 0;
size_t range_end_pos = 0;
if (BreakpointIDList::StringContainsIDRangeExpression (current_arg, &range_start_len, &range_end_pos))
{
is_range = true;
range_start.assign (current_arg, range_start_len);
range_end = current_arg + range_end_pos;
}
else if ((i + 2 < num_old_args)
&& BreakpointID::IsRangeIdentifier (old_args.GetArgumentAtIndex (i+1))
&& BreakpointID::IsValidIDExpression (current_arg)
&& BreakpointID::IsValidIDExpression (old_args.GetArgumentAtIndex (i+2)))
{
range_start.assign (current_arg);
range_end = old_args.GetArgumentAtIndex (i+2);
is_range = true;
i = i+2;
}
else
{
// See if user has specified id.*
std::string tmp_str = old_args.GetArgumentAtIndex (i);
size_t pos = tmp_str.find ('.');
if (pos != std::string::npos)
{
std::string bp_id_str = tmp_str.substr (0, pos);
if (BreakpointID::IsValidIDExpression (bp_id_str.c_str())
&& tmp_str[pos+1] == '*'
&& tmp_str.length() == (pos + 2))
{
break_id_t bp_id;
break_id_t bp_loc_id;
BreakpointID::ParseCanonicalReference (bp_id_str.c_str(), &bp_id, &bp_loc_id);
BreakpointSP breakpoint_sp = target->GetBreakpointByID (bp_id);
if (! breakpoint_sp)
{
new_args.Clear();
result.AppendErrorWithFormat ("'%d' is not a valid breakpoint ID.\n", bp_id);
result.SetStatus (eReturnStatusFailed);
return;
}
const size_t num_locations = breakpoint_sp->GetNumLocations();
for (size_t j = 0; j < num_locations; ++j)
{
BreakpointLocation *bp_loc = breakpoint_sp->GetLocationAtIndex(j).get();
StreamString canonical_id_str;
BreakpointID::GetCanonicalReference (&canonical_id_str, bp_id, bp_loc->GetID());
new_args.AppendArgument (canonical_id_str.GetData());
}
}
}
}
if (is_range)
{
break_id_t start_bp_id;
break_id_t end_bp_id;
break_id_t start_loc_id;
break_id_t end_loc_id;
BreakpointID::ParseCanonicalReference (range_start.c_str(), &start_bp_id, &start_loc_id);
BreakpointID::ParseCanonicalReference (range_end, &end_bp_id, &end_loc_id);
if ((start_bp_id == LLDB_INVALID_BREAK_ID)
|| (! target->GetBreakpointByID (start_bp_id)))
{
new_args.Clear();
result.AppendErrorWithFormat ("'%s' is not a valid breakpoint ID.\n", range_start.c_str());
result.SetStatus (eReturnStatusFailed);
return;
}
if ((end_bp_id == LLDB_INVALID_BREAK_ID)
|| (! target->GetBreakpointByID (end_bp_id)))
{
new_args.Clear();
result.AppendErrorWithFormat ("'%s' is not a valid breakpoint ID.\n", range_end);
result.SetStatus (eReturnStatusFailed);
return;
}
if (((start_loc_id == LLDB_INVALID_BREAK_ID)
&& (end_loc_id != LLDB_INVALID_BREAK_ID))
|| ((start_loc_id != LLDB_INVALID_BREAK_ID)
&& (end_loc_id == LLDB_INVALID_BREAK_ID)))
{
new_args.Clear ();
result.AppendErrorWithFormat ("Invalid breakpoint id range: Either both ends of range must specify"
" a breakpoint location, or neither can specify a breakpoint location.\n");
result.SetStatus (eReturnStatusFailed);
return;
}
// We have valid range starting & ending breakpoint IDs. Go through all the breakpoints in the
// target and find all the breakpoints that fit into this range, and add them to new_args.
// Next check to see if we have location id's. If so, make sure the start_bp_id and end_bp_id are
// for the same breakpoint; otherwise we have an illegal range: breakpoint id ranges that specify
// bp locations are NOT allowed to cross major bp id numbers.
if ((start_loc_id != LLDB_INVALID_BREAK_ID)
|| (end_loc_id != LLDB_INVALID_BREAK_ID))
{
if (start_bp_id != end_bp_id)
{
new_args.Clear();
result.AppendErrorWithFormat ("Invalid range: Ranges that specify particular breakpoint locations"
" must be within the same major breakpoint; you specified two"
" different major breakpoints, %d and %d.\n",
start_bp_id, end_bp_id);
result.SetStatus (eReturnStatusFailed);
return;
}
}
const BreakpointList& breakpoints = target->GetBreakpointList();
const size_t num_breakpoints = breakpoints.GetSize();
for (size_t j = 0; j < num_breakpoints; ++j)
{
Breakpoint *breakpoint = breakpoints.GetBreakpointAtIndex (j).get();
break_id_t cur_bp_id = breakpoint->GetID();
if ((cur_bp_id < start_bp_id) || (cur_bp_id > end_bp_id))
continue;
const size_t num_locations = breakpoint->GetNumLocations();
if ((cur_bp_id == start_bp_id) && (start_loc_id != LLDB_INVALID_BREAK_ID))
{
for (size_t k = 0; k < num_locations; ++k)
{
BreakpointLocation * bp_loc = breakpoint->GetLocationAtIndex(k).get();
if ((bp_loc->GetID() >= start_loc_id) && (bp_loc->GetID() <= end_loc_id))
{
StreamString canonical_id_str;
BreakpointID::GetCanonicalReference (&canonical_id_str, cur_bp_id, bp_loc->GetID());
new_args.AppendArgument (canonical_id_str.GetData());
}
}
}
else if ((cur_bp_id == end_bp_id) && (end_loc_id != LLDB_INVALID_BREAK_ID))
{
for (size_t k = 0; k < num_locations; ++k)
{
BreakpointLocation * bp_loc = breakpoint->GetLocationAtIndex(k).get();
if (bp_loc->GetID() <= end_loc_id)
{
StreamString canonical_id_str;
BreakpointID::GetCanonicalReference (&canonical_id_str, cur_bp_id, bp_loc->GetID());
new_args.AppendArgument (canonical_id_str.GetData());
}
}
}
else
{
StreamString canonical_id_str;
BreakpointID::GetCanonicalReference (&canonical_id_str, cur_bp_id, LLDB_INVALID_BREAK_ID);
new_args.AppendArgument (canonical_id_str.GetData());
}
}
}
else // else is_range was false
{
new_args.AppendArgument (current_arg);
}
}
result.SetStatus (eReturnStatusSuccessFinishNoResult);
return;
}
bool
BreakpointIDList::StringContainsIDRangeExpression (const char *in_string,
size_t *range_start_len,
size_t *range_end_pos)
{
bool is_range_expression = false;
std::string arg_str = in_string;
std::string::size_type idx;
std::string::size_type start_pos = 0;
*range_start_len = 0;
*range_end_pos = 0;
int specifiers_size = 0;
for (int i = 0; BreakpointID::g_range_specifiers[i] != NULL; ++i)
++specifiers_size;
for (int i = 0; i < specifiers_size && !is_range_expression; ++i)
{
const char *specifier_str = BreakpointID::g_range_specifiers[i];
size_t len = strlen (specifier_str);
idx = arg_str.find (BreakpointID::g_range_specifiers[i]);
if (idx != std::string::npos)
{
*range_start_len = idx - start_pos;
std::string start_str = arg_str.substr (start_pos, *range_start_len);
if (idx + len < arg_str.length())
{
*range_end_pos = idx + len;
std::string end_str = arg_str.substr (*range_end_pos);
if (BreakpointID::IsValidIDExpression (start_str.c_str())
&& BreakpointID::IsValidIDExpression (end_str.c_str()))
{
is_range_expression = true;
//*range_start = start_str;
//*range_end = end_str;
}
}
}
}
if (!is_range_expression)
{
*range_start_len = 0;
*range_end_pos = 0;
}
return is_range_expression;
}