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//===-- BreakpointResolverName.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/BreakpointResolverName.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Symbol/ClangNamespaceDecl.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
BreakpointResolverName::BreakpointResolverName
(
Breakpoint *bkpt,
const char *func_name,
uint32_t func_name_type_mask,
Breakpoint::MatchType type,
bool skip_prologue
) :
BreakpointResolver (bkpt, BreakpointResolver::NameResolver),
m_func_name_type_mask (func_name_type_mask),
m_class_name (),
m_regex (),
m_match_type (type),
m_skip_prologue (skip_prologue)
{
if (m_match_type == Breakpoint::Regexp)
{
if (!m_regex.Compile (func_name))
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Warning ("function name regexp: \"%s\" did not compile.", func_name);
}
}
else
{
m_func_names.push_back(ConstString(func_name));
}
}
BreakpointResolverName::BreakpointResolverName (Breakpoint *bkpt,
const char *names[],
size_t num_names,
uint32_t name_type_mask,
bool skip_prologue) :
BreakpointResolver (bkpt, BreakpointResolver::NameResolver),
m_func_name_type_mask (name_type_mask),
m_match_type (Breakpoint::Exact),
m_skip_prologue (skip_prologue)
{
for (size_t i = 0; i < num_names; i++)
{
m_func_names.push_back (ConstString (names[i]));
}
}
BreakpointResolverName::BreakpointResolverName (Breakpoint *bkpt,
std::vector<std::string> names,
uint32_t name_type_mask,
bool skip_prologue) :
BreakpointResolver (bkpt, BreakpointResolver::NameResolver),
m_func_name_type_mask (name_type_mask),
m_match_type (Breakpoint::Exact),
m_skip_prologue (skip_prologue)
{
size_t num_names = names.size();
for (size_t i = 0; i < num_names; i++)
{
m_func_names.push_back (ConstString (names[i].c_str()));
}
}
BreakpointResolverName::BreakpointResolverName
(
Breakpoint *bkpt,
RegularExpression &func_regex,
bool skip_prologue
) :
BreakpointResolver (bkpt, BreakpointResolver::NameResolver),
m_class_name (NULL),
m_regex (func_regex),
m_match_type (Breakpoint::Regexp),
m_skip_prologue (skip_prologue)
{
}
BreakpointResolverName::BreakpointResolverName
(
Breakpoint *bkpt,
const char *class_name,
const char *method,
Breakpoint::MatchType type,
bool skip_prologue
) :
BreakpointResolver (bkpt, BreakpointResolver::NameResolver),
m_class_name (class_name),
m_regex (),
m_match_type (type),
m_skip_prologue (skip_prologue)
{
m_func_names.push_back(ConstString(method));
}
BreakpointResolverName::~BreakpointResolverName ()
{
}
// FIXME: Right now we look at the module level, and call the module's "FindFunctions".
// Greg says he will add function tables, maybe at the CompileUnit level to accelerate function
// lookup. At that point, we should switch the depth to CompileUnit, and look in these tables.
Searcher::CallbackReturn
BreakpointResolverName::SearchCallback
(
SearchFilter &filter,
SymbolContext &context,
Address *addr,
bool containing
)
{
SymbolContextList func_list;
SymbolContextList sym_list;
uint32_t i;
bool new_location;
SymbolContext sc;
Address break_addr;
assert (m_breakpoint != NULL);
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
if (m_class_name)
{
if (log)
log->Warning ("Class/method function specification not supported yet.\n");
return Searcher::eCallbackReturnStop;
}
const bool include_symbols = false;
const bool include_inlines = true;
const bool append = true;
bool filter_by_cu = (filter.GetFilterRequiredItems() & eSymbolContextCompUnit) != 0;
switch (m_match_type)
{
case Breakpoint::Exact:
if (context.module_sp)
{
size_t num_names = m_func_names.size();
for (int i = 0; i < num_names; i++)
{
uint32_t num_functions = context.module_sp->FindFunctions (m_func_names[i],
NULL,
m_func_name_type_mask,
include_symbols,
include_inlines,
append,
func_list);
// If the search filter specifies a Compilation Unit, then we don't need to bother to look in plain
// symbols, since all the ones from a set compilation unit will have been found above already.
if (num_functions == 0 && !filter_by_cu)
{
if (m_func_name_type_mask & (eFunctionNameTypeBase | eFunctionNameTypeFull | eFunctionNameTypeAuto))
context.module_sp->FindSymbolsWithNameAndType (m_func_names[i], eSymbolTypeCode, sym_list);
}
}
}
break;
case Breakpoint::Regexp:
if (context.module_sp)
{
if (!filter_by_cu)
context.module_sp->FindSymbolsMatchingRegExAndType (m_regex, eSymbolTypeCode, sym_list);
context.module_sp->FindFunctions (m_regex,
include_symbols,
include_inlines,
append,
func_list);
}
break;
case Breakpoint::Glob:
if (log)
log->Warning ("glob is not supported yet.");
break;
}
// If the filter specifies a Compilation Unit, remove the ones that don't pass at this point.
if (filter_by_cu)
{
uint32_t num_functions = func_list.GetSize();
for (size_t idx = 0; idx < num_functions; idx++)
{
SymbolContext sc;
func_list.GetContextAtIndex(idx, sc);
if (!sc.comp_unit || !filter.CompUnitPasses(*sc.comp_unit))
{
func_list.RemoveContextAtIndex(idx);
num_functions--;
idx--;
}
}
}
// Remove any duplicates between the funcion list and the symbol list
if (func_list.GetSize())
{
for (i = 0; i < func_list.GetSize(); i++)
{
if (func_list.GetContextAtIndex(i, sc) == false)
continue;
if (sc.function == NULL)
continue;
uint32_t j = 0;
while (j < sym_list.GetSize())
{
SymbolContext symbol_sc;
if (sym_list.GetContextAtIndex(j, symbol_sc))
{
if (symbol_sc.symbol && symbol_sc.symbol->ValueIsAddress())
{
if (sc.function->GetAddressRange().GetBaseAddress() == symbol_sc.symbol->GetAddress())
{
sym_list.RemoveContextAtIndex(j);
continue; // Don't increment j
}
}
}
j++;
}
}
for (i = 0; i < func_list.GetSize(); i++)
{
if (func_list.GetContextAtIndex(i, sc))
{
if (sc.block && sc.block->GetInlinedFunctionInfo())
{
if (!sc.block->GetStartAddress(break_addr))
break_addr.Clear();
}
else if (sc.function)
{
break_addr = sc.function->GetAddressRange().GetBaseAddress();
if (m_skip_prologue)
{
if (break_addr.IsValid())
{
const uint32_t prologue_byte_size = sc.function->GetPrologueByteSize();
if (prologue_byte_size)
break_addr.SetOffset(break_addr.GetOffset() + prologue_byte_size);
}
}
}
if (break_addr.IsValid())
{
if (filter.AddressPasses(break_addr))
{
BreakpointLocationSP bp_loc_sp (m_breakpoint->AddLocation(break_addr, &new_location));
if (bp_loc_sp && new_location && !m_breakpoint->IsInternal())
{
if (log)
{
StreamString s;
bp_loc_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose);
log->Printf ("Added location: %s\n", s.GetData());
}
}
}
}
}
}
}
for (i = 0; i < sym_list.GetSize(); i++)
{
if (sym_list.GetContextAtIndex(i, sc))
{
if (sc.symbol && sc.symbol->ValueIsAddress())
{
break_addr = sc.symbol->GetAddress();
if (m_skip_prologue)
{
const uint32_t prologue_byte_size = sc.symbol->GetPrologueByteSize();
if (prologue_byte_size)
break_addr.SetOffset(break_addr.GetOffset() + prologue_byte_size);
}
if (filter.AddressPasses(break_addr))
{
BreakpointLocationSP bp_loc_sp (m_breakpoint->AddLocation(break_addr, &new_location));
if (bp_loc_sp && new_location && !m_breakpoint->IsInternal())
{
StreamString s;
bp_loc_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose);
if (log)
log->Printf ("Added location: %s\n", s.GetData());
}
}
}
}
}
return Searcher::eCallbackReturnContinue;
}
Searcher::Depth
BreakpointResolverName::GetDepth()
{
return Searcher::eDepthModule;
}
void
BreakpointResolverName::GetDescription (Stream *s)
{
if (m_match_type == Breakpoint::Regexp)
s->Printf("regex = '%s'", m_regex.GetText());
else
{
size_t num_names = m_func_names.size();
if (num_names == 1)
s->Printf("name = '%s'", m_func_names[0].AsCString());
else
{
s->Printf("names = {");
for (size_t i = 0; i < num_names - 1; i++)
{
s->Printf ("'%s', ", m_func_names[i].AsCString());
}
s->Printf ("'%s'}", m_func_names[num_names - 1].AsCString());
}
}
}
void
BreakpointResolverName::Dump (Stream *s) const
{
}