1 /*===- InstrProfilingUtil.c - Support library for PGO instrumentation -----===*\
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 "InstrProfilingUtil.h"
11 #include "InstrProfiling.h"
12 
13 #ifdef _WIN32
14 #include <direct.h>
15 #else
16 #include <sys/stat.h>
17 #include <sys/types.h>
18 #endif
19 
20 #ifdef COMPILER_RT_HAS_UNAME
21 #include <sys/utsname.h>
22 #endif
23 
24 #include <string.h>
25 
26 COMPILER_RT_VISIBILITY
27 void __llvm_profile_recursive_mkdir(char *path) {
28   int i;
29 
30   for (i = 1; path[i] != '\0'; ++i) {
31     char save = path[i];
32     if (!(path[i] == '/' || path[i] == '\\'))
33       continue;
34     path[i] = '\0';
35 #ifdef _WIN32
36     _mkdir(path);
37 #else
38     mkdir(path, 0755);  /* Some of these will fail, ignore it. */
39 #endif
40     path[i] = save;
41   }
42 }
43 
44 #if COMPILER_RT_HAS_ATOMICS != 1
45 COMPILER_RT_VISIBILITY
46 uint32_t lprofBoolCmpXchg(void **Ptr, void *OldV, void *NewV) {
47   void *R = *Ptr;
48   if (R == OldV) {
49     *Ptr = NewV;
50     return 1;
51   }
52   return 0;
53 }
54 #endif
55 
56 #ifdef COMPILER_RT_HAS_UNAME
57 int lprofGetHostName(char *Name, int Len) {
58   struct utsname N;
59   int R;
60   if (!(R = uname(&N)))
61     strncpy(Name, N.nodename, Len);
62   return R;
63 }
64 #endif
65 
66 
67