1 //===-- lldb.cpp ------------------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "lldb/lldb-private.h"
11 
12 using namespace lldb;
13 using namespace lldb_private;
14 
15 #if defined (__APPLE__)
16 extern "C" const unsigned char liblldb_coreVersionString[];
17 #else
18 
19 #include "clang/Basic/Version.h"
20 
21 static const char *
22 GetLLDBRevision()
23 {
24 #ifdef LLDB_REVISION
25     return LLDB_REVISION;
26 #else
27     return NULL;
28 #endif
29 }
30 
31 static const char *
32 GetLLDBRepository()
33 {
34 #ifdef LLDB_REPOSITORY
35     return LLDB_REPOSITORY;
36 #else
37     return NULL;
38 #endif
39 }
40 
41 #endif
42 
43 const char *
44 lldb_private::GetVersion ()
45 {
46 #if defined (__APPLE__)
47     static char g_version_string[32];
48     if (g_version_string[0] == '\0')
49     {
50         const char *version_string = ::strstr ((const char *)liblldb_coreVersionString, "PROJECT:");
51 
52         if (version_string)
53             version_string += sizeof("PROJECT:") - 1;
54         else
55             version_string = "unknown";
56 
57         const char *newline_loc = strchr(version_string, '\n');
58 
59         size_t version_len = sizeof(g_version_string) - 1;
60 
61         if (newline_loc &&
62             (newline_loc - version_string < static_cast<ptrdiff_t>(version_len)))
63             version_len = newline_loc - version_string;
64 
65         ::snprintf(g_version_string, version_len + 1, "%s", version_string);
66     }
67 
68     return g_version_string;
69 #else
70     // On Linux/FreeBSD/Windows, report a version number in the same style as the clang tool.
71     static std::string g_version_str;
72     if (g_version_str.empty())
73     {
74         g_version_str += "lldb version ";
75         g_version_str += CLANG_VERSION_STRING;
76         const char * lldb_repo = GetLLDBRepository();
77         if (lldb_repo)
78         {
79             g_version_str += " (";
80             g_version_str += lldb_repo;
81         }
82 
83         const char *lldb_rev = GetLLDBRevision();
84         if (lldb_rev)
85         {
86             g_version_str += " revision ";
87             g_version_str += lldb_rev;
88         }
89         std::string clang_rev (clang::getClangRevision());
90         if (clang_rev.length() > 0)
91         {
92             g_version_str += " clang revision ";
93             g_version_str += clang_rev;
94         }
95         std::string llvm_rev (clang::getLLVMRevision());
96         if (llvm_rev.length() > 0)
97         {
98             g_version_str += " llvm revision ";
99             g_version_str += llvm_rev;
100         }
101 
102         if (lldb_repo)
103             g_version_str += ")";
104     }
105     return g_version_str.c_str();
106 #endif
107 }
108