1//===-- sanitizer_procmaps_solaris.cc -------------------------------------===//
2//
3// This file is distributed under the University of Illinois Open Source
4// License. See LICENSE.TXT for details.
5//
6//===----------------------------------------------------------------------===//
7//
8// Information about the process mappings (Solaris-specific parts).
9//===----------------------------------------------------------------------===//
10
11#include "sanitizer_platform.h"
12#if SANITIZER_SOLARIS
13#include "sanitizer_common.h"
14#include "sanitizer_procmaps.h"
15
16// Before Solaris 11.4, <procfs.h> doesn't work in a largefile environment.
17#undef _FILE_OFFSET_BITS
18#include <procfs.h>
19#include <limits.h>
20
21namespace __sanitizer {
22
23void ReadProcMaps(ProcSelfMapsBuff *proc_maps) {
24  ReadFileToBuffer("/proc/self/xmap", &proc_maps->data, &proc_maps->mmaped_size,
25                   &proc_maps->len);
26}
27
28bool MemoryMappingLayout::Next(MemoryMappedSegment *segment) {
29  char *last = data_.proc_self_maps.data + data_.proc_self_maps.len;
30  if (data_.current >= last) return false;
31
32  prxmap_t *xmapentry = (prxmap_t*)data_.current;
33
34  segment->start = (uptr)xmapentry->pr_vaddr;
35  segment->end = (uptr)(xmapentry->pr_vaddr + xmapentry->pr_size);
36  segment->offset = (uptr)xmapentry->pr_offset;
37
38  segment->protection = 0;
39  if ((xmapentry->pr_mflags & MA_READ) != 0)
40    segment->protection |= kProtectionRead;
41  if ((xmapentry->pr_mflags & MA_WRITE) != 0)
42    segment->protection |= kProtectionWrite;
43  if ((xmapentry->pr_mflags & MA_EXEC) != 0)
44    segment->protection |= kProtectionExecute;
45
46  if (segment->filename != NULL && segment->filename_size > 0) {
47    internal_snprintf(segment->filename,
48                      Min(segment->filename_size, (uptr)PATH_MAX), "%s",
49                      xmapentry->pr_mapname);
50  }
51
52  data_.current += sizeof(prxmap_t);
53
54  return true;
55}
56
57}  // namespace __sanitizer
58
59#endif  // SANITIZER_SOLARIS
60