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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
//===-- HostProcessPosix.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/Host/Host.h"
#include "lldb/Host/posix/HostProcessPosix.h"
#include "lldb/Host/FileSystem.h"
#include "llvm/ADT/STLExtras.h"
#include <limits.h>
using namespace lldb_private;
namespace
{
const int kInvalidPosixProcess = 0;
}
HostProcessPosix::HostProcessPosix()
: HostNativeProcessBase(kInvalidPosixProcess)
{
}
HostProcessPosix::HostProcessPosix(lldb::process_t process)
: HostNativeProcessBase(process)
{
}
HostProcessPosix::~HostProcessPosix()
{
}
Error HostProcessPosix::Signal(int signo) const
{
if (m_process == kInvalidPosixProcess)
{
Error error;
error.SetErrorString("HostProcessPosix refers to an invalid process");
return error;
}
return HostProcessPosix::Signal(m_process, signo);
}
Error HostProcessPosix::Signal(lldb::process_t process, int signo)
{
Error error;
if (-1 == ::kill(process, signo))
error.SetErrorToErrno();
return error;
}
Error HostProcessPosix::Terminate()
{
return Signal(SIGKILL);
}
Error HostProcessPosix::GetMainModule(FileSpec &file_spec) const
{
Error error;
// Use special code here because proc/[pid]/exe is a symbolic link.
char link_path[PATH_MAX];
if (snprintf(link_path, PATH_MAX, "/proc/%" PRIu64 "/exe", m_process) != 1)
{
error.SetErrorString("Unable to build /proc/<pid>/exe string");
return error;
}
error = FileSystem::Readlink(FileSpec{link_path, false}, file_spec);
if (!error.Success())
return error;
// If the binary has been deleted, the link name has " (deleted)" appended.
// Remove if there.
if (file_spec.GetFilename().GetStringRef().endswith(" (deleted)"))
{
const char *filename = file_spec.GetFilename().GetCString();
static const size_t deleted_len = strlen(" (deleted)");
const size_t len = file_spec.GetFilename().GetLength();
file_spec.GetFilename().SetCStringWithLength(filename, len - deleted_len);
}
return error;
}
lldb::pid_t HostProcessPosix::GetProcessId() const
{
return m_process;
}
bool HostProcessPosix::IsRunning() const
{
if (m_process == kInvalidPosixProcess)
return false;
// Send this process the null signal. If it succeeds the process is running.
Error error = Signal(0);
return error.Success();
}
HostThread
HostProcessPosix::StartMonitoring(const Host::MonitorChildProcessCallback &callback, bool monitor_signals)
{
return Host::StartMonitoringChildProcess(callback, m_process, monitor_signals);
}
|
