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author | 2020-08-03 14:33:06 +0000 | |
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committer | 2020-08-03 14:33:06 +0000 | |
commit | 061da546b983eb767bad15e67af1174fb0bcf31c (patch) | |
tree | 83c78b820819d70aa40c36d90447978b300078c5 /gnu/llvm/lldb/source/Breakpoint/WatchpointOptions.cpp | |
parent | Import LLVM 10.0.0 release including clang, lld and lldb. (diff) | |
download | wireguard-openbsd-061da546b983eb767bad15e67af1174fb0bcf31c.tar.xz wireguard-openbsd-061da546b983eb767bad15e67af1174fb0bcf31c.zip |
Import LLVM 10.0.0 release including clang, lld and lldb.
ok hackroom
tested by plenty
Diffstat (limited to 'gnu/llvm/lldb/source/Breakpoint/WatchpointOptions.cpp')
-rw-r--r-- | gnu/llvm/lldb/source/Breakpoint/WatchpointOptions.cpp | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/gnu/llvm/lldb/source/Breakpoint/WatchpointOptions.cpp b/gnu/llvm/lldb/source/Breakpoint/WatchpointOptions.cpp new file mode 100644 index 00000000000..026bf2f746a --- /dev/null +++ b/gnu/llvm/lldb/source/Breakpoint/WatchpointOptions.cpp @@ -0,0 +1,182 @@ +//===-- WatchpointOptions.cpp -----------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "lldb/Breakpoint/WatchpointOptions.h" + +#include "lldb/Breakpoint/StoppointCallbackContext.h" +#include "lldb/Core/Value.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/ThreadSpec.h" +#include "lldb/Utility/Stream.h" +#include "lldb/Utility/StringList.h" + +using namespace lldb; +using namespace lldb_private; + +bool WatchpointOptions::NullCallback(void *baton, + StoppointCallbackContext *context, + lldb::user_id_t watch_id) { + return true; +} + +// WatchpointOptions constructor +WatchpointOptions::WatchpointOptions() + : m_callback(WatchpointOptions::NullCallback), m_callback_baton_sp(), + m_callback_is_synchronous(false), m_thread_spec_up() {} + +// WatchpointOptions copy constructor +WatchpointOptions::WatchpointOptions(const WatchpointOptions &rhs) + : m_callback(rhs.m_callback), m_callback_baton_sp(rhs.m_callback_baton_sp), + m_callback_is_synchronous(rhs.m_callback_is_synchronous), + m_thread_spec_up() { + if (rhs.m_thread_spec_up != nullptr) + m_thread_spec_up.reset(new ThreadSpec(*rhs.m_thread_spec_up)); +} + +// WatchpointOptions assignment operator +const WatchpointOptions &WatchpointOptions:: +operator=(const WatchpointOptions &rhs) { + m_callback = rhs.m_callback; + m_callback_baton_sp = rhs.m_callback_baton_sp; + m_callback_is_synchronous = rhs.m_callback_is_synchronous; + if (rhs.m_thread_spec_up != nullptr) + m_thread_spec_up.reset(new ThreadSpec(*rhs.m_thread_spec_up)); + return *this; +} + +WatchpointOptions * +WatchpointOptions::CopyOptionsNoCallback(WatchpointOptions &orig) { + WatchpointHitCallback orig_callback = orig.m_callback; + lldb::BatonSP orig_callback_baton_sp = orig.m_callback_baton_sp; + bool orig_is_sync = orig.m_callback_is_synchronous; + + orig.ClearCallback(); + WatchpointOptions *ret_val = new WatchpointOptions(orig); + + orig.SetCallback(orig_callback, orig_callback_baton_sp, orig_is_sync); + + return ret_val; +} + +// Destructor +WatchpointOptions::~WatchpointOptions() = default; + +// Callbacks +void WatchpointOptions::SetCallback(WatchpointHitCallback callback, + const BatonSP &callback_baton_sp, + bool callback_is_synchronous) { + m_callback_is_synchronous = callback_is_synchronous; + m_callback = callback; + m_callback_baton_sp = callback_baton_sp; +} + +void WatchpointOptions::ClearCallback() { + m_callback = WatchpointOptions::NullCallback; + m_callback_is_synchronous = false; + m_callback_baton_sp.reset(); +} + +Baton *WatchpointOptions::GetBaton() { return m_callback_baton_sp.get(); } + +const Baton *WatchpointOptions::GetBaton() const { + return m_callback_baton_sp.get(); +} + +bool WatchpointOptions::InvokeCallback(StoppointCallbackContext *context, + lldb::user_id_t watch_id) { + if (m_callback && context->is_synchronous == IsCallbackSynchronous()) { + return m_callback(m_callback_baton_sp ? m_callback_baton_sp->data() + : nullptr, + context, watch_id); + } else + return true; +} + +bool WatchpointOptions::HasCallback() { + return m_callback != WatchpointOptions::NullCallback; +} + +const ThreadSpec *WatchpointOptions::GetThreadSpecNoCreate() const { + return m_thread_spec_up.get(); +} + +ThreadSpec *WatchpointOptions::GetThreadSpec() { + if (m_thread_spec_up == nullptr) + m_thread_spec_up.reset(new ThreadSpec()); + + return m_thread_spec_up.get(); +} + +void WatchpointOptions::SetThreadID(lldb::tid_t thread_id) { + GetThreadSpec()->SetTID(thread_id); +} + +void WatchpointOptions::GetCallbackDescription( + Stream *s, lldb::DescriptionLevel level) const { + if (m_callback_baton_sp.get()) { + s->EOL(); + m_callback_baton_sp->GetDescription(s->AsRawOstream(), level, + s->GetIndentLevel()); + } +} + +void WatchpointOptions::GetDescription(Stream *s, + lldb::DescriptionLevel level) const { + // Figure out if there are any options not at their default value, and only + // print anything if there are: + + if ((GetThreadSpecNoCreate() != nullptr && + GetThreadSpecNoCreate()->HasSpecification())) { + if (level == lldb::eDescriptionLevelVerbose) { + s->EOL(); + s->IndentMore(); + s->Indent(); + s->PutCString("Watchpoint Options:\n"); + s->IndentMore(); + s->Indent(); + } else + s->PutCString(" Options: "); + + if (m_thread_spec_up) + m_thread_spec_up->GetDescription(s, level); + else if (level == eDescriptionLevelBrief) + s->PutCString("thread spec: no "); + if (level == lldb::eDescriptionLevelFull) { + s->IndentLess(); + s->IndentMore(); + } + } + + GetCallbackDescription(s, level); +} + +void WatchpointOptions::CommandBaton::GetDescription( + llvm::raw_ostream &s, lldb::DescriptionLevel level, + unsigned indentation) const { + const CommandData *data = getItem(); + + if (level == eDescriptionLevelBrief) { + s << ", commands = %s" + << ((data && data->user_source.GetSize() > 0) ? "yes" : "no"); + return; + } + + indentation += 2; + s.indent(indentation); + s << "watchpoint commands:\n"; + + indentation += 2; + if (data && data->user_source.GetSize() > 0) { + for (const std::string &line : data->user_source) { + s.indent(indentation); + s << line << "\n"; + } + } else + s << "No commands.\n"; +} |