diff options
| author | ktietz <ktietz@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-04-01 09:05:13 +0000 |
|---|---|---|
| committer | ktietz <ktietz@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-04-01 09:05:13 +0000 |
| commit | 4ccce1021256dbef696b9206e02ff4140876a30f (patch) | |
| tree | 55748baa20c6fd24c55c41441364e8daea37ab2b /gcc/config/i386 | |
| parent | 4a04f4b4ef151f7daac789989104d7a55f434f0b (diff) | |
| download | gcc-4ccce1021256dbef696b9206e02ff4140876a30f.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@145394 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/i386')
| -rw-r--r-- | gcc/config/i386/host-mingw32.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/gcc/config/i386/host-mingw32.c b/gcc/config/i386/host-mingw32.c index ed8ab1008ee..1d2e59ab576 100644 --- a/gcc/config/i386/host-mingw32.c +++ b/gcc/config/i386/host-mingw32.c @@ -120,8 +120,19 @@ mingw32_gt_pch_use_address (void *addr, size_t size, int fd, 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 |