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-rw-r--r--lib/sanitizer_common/sanitizer_procmaps_solaris.cpp67
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/sanitizer_common/sanitizer_procmaps_solaris.cpp b/lib/sanitizer_common/sanitizer_procmaps_solaris.cpp
new file mode 100644
index 000000000000..8793423a6017
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+++ b/lib/sanitizer_common/sanitizer_procmaps_solaris.cpp
@@ -0,0 +1,67 @@
+//===-- sanitizer_procmaps_solaris.cpp ------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Information about the process mappings (Solaris-specific parts).
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_platform.h"
+#if SANITIZER_SOLARIS
+#include "sanitizer_common.h"
+#include "sanitizer_procmaps.h"
+
+// Before Solaris 11.4, <procfs.h> doesn't work in a largefile environment.
+#undef _FILE_OFFSET_BITS
+#include <procfs.h>
+#include <limits.h>
+
+namespace __sanitizer {
+
+void ReadProcMaps(ProcSelfMapsBuff *proc_maps) {
+ if (!ReadFileToBuffer("/proc/self/xmap", &proc_maps->data,
+ &proc_maps->mmaped_size, &proc_maps->len)) {
+ proc_maps->data = nullptr;
+ proc_maps->mmaped_size = 0;
+ proc_maps->len = 0;
+ }
+}
+
+bool MemoryMappingLayout::Next(MemoryMappedSegment *segment) {
+ if (Error()) return false; // simulate empty maps
+ char *last = data_.proc_self_maps.data + data_.proc_self_maps.len;
+ if (data_.current >= last) return false;
+
+ prxmap_t *xmapentry = (prxmap_t*)data_.current;
+
+ segment->start = (uptr)xmapentry->pr_vaddr;
+ segment->end = (uptr)(xmapentry->pr_vaddr + xmapentry->pr_size);
+ segment->offset = (uptr)xmapentry->pr_offset;
+
+ segment->protection = 0;
+ if ((xmapentry->pr_mflags & MA_READ) != 0)
+ segment->protection |= kProtectionRead;
+ if ((xmapentry->pr_mflags & MA_WRITE) != 0)
+ segment->protection |= kProtectionWrite;
+ if ((xmapentry->pr_mflags & MA_EXEC) != 0)
+ segment->protection |= kProtectionExecute;
+
+ if (segment->filename != NULL && segment->filename_size > 0) {
+ char proc_path[PATH_MAX + 1];
+
+ internal_snprintf(proc_path, sizeof(proc_path), "/proc/self/path/%s",
+ xmapentry->pr_mapname);
+ internal_readlink(proc_path, segment->filename, segment->filename_size);
+ }
+
+ data_.current += sizeof(prxmap_t);
+
+ return true;
+}
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_SOLARIS