llvm-project/lldb/source/Host/common/NativeBreakpoint.cpp

117 lines
3.1 KiB
C++

//===-- NativeBreakpoint.cpp ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "NativeBreakpoint.h"
#include "lldb/lldb-defines.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Log.h"
using namespace lldb_private;
NativeBreakpoint::NativeBreakpoint (lldb::addr_t addr) :
m_addr (addr),
m_ref_count (1),
m_enabled (true)
{
assert (addr != LLDB_INVALID_ADDRESS && "breakpoint set for invalid address");
}
NativeBreakpoint::~NativeBreakpoint ()
{
}
void
NativeBreakpoint::AddRef ()
{
++m_ref_count;
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " bumped up, new ref count %" PRIu32, __FUNCTION__, m_addr, m_ref_count);
}
int32_t
NativeBreakpoint::DecRef ()
{
--m_ref_count;
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " ref count decremented, new ref count %" PRIu32, __FUNCTION__, m_addr, m_ref_count);
return m_ref_count;
}
Error
NativeBreakpoint::Enable ()
{
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
if (m_enabled)
{
// We're already enabled. Just log and exit.
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " already enabled, ignoring.", __FUNCTION__, m_addr);
return Error ();
}
// Log and enable.
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enabling...", __FUNCTION__, m_addr);
Error error = DoEnable ();
if (error.Success ())
{
m_enabled = true;
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enable SUCCESS.", __FUNCTION__, m_addr);
}
else
{
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enable FAIL: %s", __FUNCTION__, m_addr, error.AsCString ());
}
return error;
}
Error
NativeBreakpoint::Disable ()
{
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
if (!m_enabled)
{
// We're already disabled. Just log and exit.
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " already disabled, ignoring.", __FUNCTION__, m_addr);
return Error ();
}
// Log and disable.
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disabling...", __FUNCTION__, m_addr);
Error error = DoDisable ();
if (error.Success ())
{
m_enabled = false;
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disable SUCCESS.", __FUNCTION__, m_addr);
}
else
{
if (log)
log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disable FAIL: %s", __FUNCTION__, m_addr, error.AsCString ());
}
return error;
}