blob: d3ac61f7e658266385641c5c2ba843f7daeacd25 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
//===-- ThreadDecoder.cpp --======-----------------------------------------===//
// 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 "ThreadDecoder.h"
#include "llvm/Support/MemoryBuffer.h"
#include "../common/ThreadPostMortemTrace.h"
#include "LibiptDecoder.h"
#include "TraceIntelPT.h"
#include <utility>
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::trace_intel_pt;
using namespace llvm;
ThreadDecoder::ThreadDecoder(const ThreadSP &thread_sp, TraceIntelPT &trace)
: m_thread_sp(thread_sp), m_trace(trace) {}
Expected<DecodedThreadSP> ThreadDecoder::Decode() {
if (!m_decoded_thread.hasValue()) {
if (Expected<DecodedThreadSP> decoded_thread = DoDecode()) {
m_decoded_thread = *decoded_thread;
} else {
return decoded_thread.takeError();
}
}
return *m_decoded_thread;
}
llvm::Expected<DecodedThreadSP> ThreadDecoder::DoDecode() {
return m_trace.GetThreadTimer(m_thread_sp->GetID())
.TimeTask(
"Decoding instructions", [&]() -> Expected<DecodedThreadSP> {
DecodedThreadSP decoded_thread_sp =
std::make_shared<DecodedThread>(m_thread_sp);
Error err = m_trace.OnThreadBufferRead(
m_thread_sp->GetID(), [&](llvm::ArrayRef<uint8_t> data) {
return DecodeSingleTraceForThread(*decoded_thread_sp, m_trace,
data);
});
if (err)
return std::move(err);
return decoded_thread_sp;
});
}
|
