+2009-04-01 Kai Tietz <kai.tietz@onevision.com>
+ Andrey Galkin <agalkin@hypercom.com>
+
+ PR/39492
+ * config/i386/host-mingw32.c (mingw32_gt_pch_use_address):
+ Make object_name unique for each process.
+
2009-04-01 Jakub Jelinek <jakub@redhat.com>
PR other/39591
namespace when running an application in a Terminal Server
session. This causes failure since, by default, applications
don't get SeCreateGlobalPrivilege. We don't need global
- memory sharing so explicitly put object into Local namespace. */
- const char object_name[] = "Local\\MinGWGCCPCH";
+ memory sharing so explicitly put object into Local namespace.
+
+ There is also another issue, which appears if multiple concurrent
+ GCC processes are using PCH functionality. MapViewOfFileEx returns
+ "Access Denied" error. So we need to make the session-wide mapping
+ name unique. Let's use current process ID for that. */
+#define OBJECT_NAME_FMT "Local\\MinGWGCCPCH-"
+
+ /* Allocate enough space for name prefix and max possible DWORD
+ hexadecimal representation. */
+ char object_name[sizeof (OBJECT_NAME_FMT) + sizeof (DWORD) * 2];
+ snprintf (object_name, sizeof (object_name), OBJECT_NAME_FMT "%lx",
+ GetCurrentProcessId());
/* However, the documentation for CreateFileMapping says that on NT4
and earlier, backslashes are invalid in object name. So, we need