5fae71c51c
Summary: This converts LLDB's logging to use llvm streams instead of lldb_private::Stream and friends. The changes are mostly straight-forward and amount to s/lldb_private::Stream/llvm::raw_ostream. The part worth calling out is the rewrite of the StreamCallback class. Previously this class contained a per-thread buffer of data written. I assume this had something to do with it trying to make sure each log line is delivered as a single event, instead of multiple (possibly interleaved) events. However, this is no longer relevant as the Log class already writes things to a temporary buffer and then delivers the message as a single "write", so I have just removed the code in question. Reviewers: zturner, clayborg Subscribers: emaste, lldb-commits, mgorny Differential Revision: https://reviews.llvm.org/D29615 llvm-svn: 294736
103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
//===-- ProcessPOSIXLog.h -----------------------------------------*- C++
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//-*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_ProcessPOSIXLog_h_
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#define liblldb_ProcessPOSIXLog_h_
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Core/Log.h"
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#define POSIX_LOG_PROCESS (1u << 1)
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#define POSIX_LOG_THREAD (1u << 2)
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#define POSIX_LOG_PACKETS (1u << 3)
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#define POSIX_LOG_MEMORY (1u << 4) // Log memory reads/writes calls
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#define POSIX_LOG_MEMORY_DATA_SHORT \
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(1u << 5) // Log short memory reads/writes bytes
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#define POSIX_LOG_MEMORY_DATA_LONG \
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(1u << 6) // Log all memory reads/writes bytes
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#define POSIX_LOG_BREAKPOINTS (1u << 7)
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#define POSIX_LOG_WATCHPOINTS (1u << 8)
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#define POSIX_LOG_STEP (1u << 9)
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#define POSIX_LOG_COMM (1u << 10)
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#define POSIX_LOG_ASYNC (1u << 11)
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#define POSIX_LOG_PTRACE (1u << 12)
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#define POSIX_LOG_REGISTERS (1u << 13)
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#define POSIX_LOG_ALL (UINT32_MAX)
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#define POSIX_LOG_DEFAULT POSIX_LOG_PACKETS
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// The size which determines "short memory reads/writes".
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#define POSIX_LOG_MEMORY_SHORT_BYTES (4 * sizeof(ptrdiff_t))
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class ProcessPOSIXLog {
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static int m_nestinglevel;
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static const char *m_pluginname;
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public:
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// ---------------------------------------------------------------------
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// Public Static Methods
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// ---------------------------------------------------------------------
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static void Initialize(lldb_private::ConstString name);
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static void RegisterPluginName(const char *pluginName) {
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m_pluginname = pluginName;
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}
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static void RegisterPluginName(lldb_private::ConstString pluginName) {
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m_pluginname = pluginName.GetCString();
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}
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static lldb_private::Log *GetLogIfAllCategoriesSet(uint32_t mask = 0);
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static void DisableLog(const char **args,
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lldb_private::Stream *feedback_strm);
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static lldb_private::Log *
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EnableLog(const std::shared_ptr<llvm::raw_ostream> &log_stream_sp,
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uint32_t log_options, const char **args,
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lldb_private::Stream *feedback_strm);
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static void ListLogCategories(lldb_private::Stream *strm);
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static void LogIf(uint32_t mask, const char *format, ...);
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// The following functions can be used to enable the client to limit
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// logging to only the top level function calls. This is useful for
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// recursive functions. FIXME: not thread safe!
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// Example:
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// void NestingFunc() {
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// LogSP log
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// (ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_ALL));
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// if (log)
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// {
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// ProcessPOSIXLog::IncNestLevel();
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// if (ProcessPOSIXLog::AtTopNestLevel())
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// log->Print(msg);
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// }
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// NestingFunc();
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// if (log)
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// ProcessPOSIXLog::DecNestLevel();
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// }
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static bool AtTopNestLevel() { return m_nestinglevel == 1; }
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static void IncNestLevel() { ++m_nestinglevel; }
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static void DecNestLevel() {
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--m_nestinglevel;
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assert(m_nestinglevel >= 0);
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}
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};
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#endif // liblldb_ProcessPOSIXLog_h_
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