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Diffstat (limited to 'lldb/source/Breakpoint/WatchpointLocation.cpp')
-rw-r--r-- | lldb/source/Breakpoint/WatchpointLocation.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/lldb/source/Breakpoint/WatchpointLocation.cpp b/lldb/source/Breakpoint/WatchpointLocation.cpp new file mode 100644 index 00000000000..f765ef43202 --- /dev/null +++ b/lldb/source/Breakpoint/WatchpointLocation.cpp @@ -0,0 +1,137 @@ +//===-- WatchpointLocation.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/WatchpointLocation.h" + +// C Includes +// C++ Includes +// Other libraries and framework includes +// Project includes +#include "lldb/Core/Stream.h" + +using namespace lldb; +using namespace lldb_private; + +WatchpointLocation::WatchpointLocation (lldb::addr_t addr, lldb::tid_t tid, bool hardware) : + StoppointLocation (GetNextID(), addr, tid, hardware), + m_enabled(0), + m_watch_read(0), + m_watch_write(0), + m_watch_was_read(0), + m_watch_was_written(0), + m_ignore_count(0), + m_callback(NULL), + m_callback_baton(NULL) +{ +} + +WatchpointLocation::~WatchpointLocation() +{ +} + +break_id_t +WatchpointLocation::GetNextID() +{ + static break_id_t g_next_ID = 0; + return ++g_next_ID; +} + +bool +WatchpointLocation::SetCallback (WatchpointHitCallback callback, void *callback_baton) +{ + m_callback = callback; + m_callback_baton = callback_baton; + return true; +} + + +// RETURNS - true if we should stop at this breakpoint, false if we +// should continue. + +bool +WatchpointLocation::BreakpointWasHit (StoppointCallbackContext *context) +{ + m_hit_count++; + + if (m_hit_count > m_ignore_count) + { + uint32_t access = 0; + if (m_watch_was_read) + access |= LLDB_WATCH_TYPE_READ; + if (m_watch_was_written) + access |= LLDB_WATCH_TYPE_WRITE; + return m_callback(m_callback_baton, context, GetID(), access); + } + return false; +} + +void +WatchpointLocation::Dump(Stream *s) const +{ + if (s == NULL) + return; + + s->Printf("WatchpointLocation %u: tid = %4.4x addr = 0x%8.8llx size = %zu state = %s type = %s watchpoint (%s%s) hw_index = %i hit_count = %-4u ignore_count = %-4u callback = %8p baton = %8p", + GetID(), + m_tid, + (uint64_t)m_addr, + m_byte_size, + m_enabled ? "enabled " : "disabled", + IsHardware() ? "hardware" : "software", + m_watch_read ? "r" : "", + m_watch_write ? "w" : "", + GetHardwareIndex(), + GetHitCount(), + GetIgnoreCount(), + m_callback, + m_callback_baton); +} + +bool +WatchpointLocation::IsEnabled() const +{ + return m_enabled; +} + +void +WatchpointLocation::SetEnabled(uint32_t enabled) +{ + if (!enabled) + SetHardwareIndex(LLDB_INVALID_INDEX32); + m_enabled = enabled; +} + +void +WatchpointLocation::SetWatchpointType (uint32_t type) +{ + m_watch_read = (type & LLDB_WATCH_TYPE_READ) != 0; + m_watch_write = (type & LLDB_WATCH_TYPE_WRITE) != 0; +} + +bool +WatchpointLocation::WatchpointRead () const +{ + return m_watch_read != 0; +} +bool +WatchpointLocation::WatchpointWrite () const +{ + return m_watch_write != 0; +} +int32_t +WatchpointLocation::GetIgnoreCount () const +{ + return m_ignore_count; +} + +void +WatchpointLocation::SetIgnoreCount (int32_t n) +{ + m_ignore_count = n; +} |