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