[ion] 54285: [KERNEL32]: Fix multiple issues in BaseCreateStack: - StackLimit was set incorrectly. - Code was not using BaseStaticServerdata, but querying NT instead. - Fix memory leak in failure c...
3 Nov
2011
3 Nov
'11
6:46 a.m.
Author: ion
Date: Thu Nov 3 06:46:22 2011
New Revision: 54285
URL: http://svn.reactos.org/svn/reactos?rev=54285&view=rev
Log:
[KERNEL32]: Fix multiple issues in BaseCreateStack:
- StackLimit was set incorrectly.
- Code was not using BaseStaticServerdata, but querying NT instead.
- Fix memory leak in failure case.
- StackCommit and StackReserved values were not aligned correctly.
- Windows Server 2003+ feature of "Guaranteed Stack Commit Size" was not
respected.
- Some math was screwy.
- Failure to get NT headers was not handled.
Modified:
trunk/reactos/dll/win32/kernel32/client/fiber.c
trunk/reactos/dll/win32/kernel32/client/proc.c
trunk/reactos/dll/win32/kernel32/client/thread.c
trunk/reactos/dll/win32/kernel32/client/utils.c
trunk/reactos/dll/win32/kernel32/include/kernel32.h
Modified: trunk/reactos/dll/win32/kernel32/client/fiber.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/client/…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/client/fiber.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/client/fiber.c [iso-8859-1] Thu Nov 3 06:46:22 2011
@@ -201,7 +201,7 @@
}
/* Create the stack for the fiber */
- Status = BasepCreateStack(NtCurrentProcess(),
+ Status = BaseCreateStack(NtCurrentProcess(),
dwStackCommitSize,
dwStackReserveSize,
&InitialTeb);
Modified: trunk/reactos/dll/win32/kernel32/client/proc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/client/…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/client/proc.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/client/proc.c [iso-8859-1] Thu Nov 3 06:46:22 2011
@@ -187,7 +187,7 @@
DPRINT("BasepCreateFirstThread. hProcess: %lx\n", ProcessHandle);
/* Create the Thread's Stack */
- BasepCreateStack(ProcessHandle,
+ BaseCreateStack(ProcessHandle,
SectionImageInfo->MaximumStackSize,
SectionImageInfo->CommittedStackSize,
&InitialTeb);
Modified: trunk/reactos/dll/win32/kernel32/client/thread.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/client/…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/client/thread.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/client/thread.c [iso-8859-1] Thu Nov 3 06:46:22
2011
@@ -137,7 +137,7 @@
ClientId.UniqueProcess = hProcess;
/* Create the Stack */
- Status = BasepCreateStack(hProcess,
+ Status = BaseCreateStack(hProcess,
dwStackSize,
dwCreationFlags & STACK_SIZE_PARAM_IS_A_RESERVATION ?
dwStackSize : 0,
Modified: trunk/reactos/dll/win32/kernel32/client/utils.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/client/…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/client/utils.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/client/utils.c [iso-8859-1] Thu Nov 3 06:46:22 2011
@@ -247,60 +247,64 @@
*/
NTSTATUS
WINAPI
-BasepCreateStack(HANDLE hProcess,
+BaseCreateStack(HANDLE hProcess,
SIZE_T StackReserve,
SIZE_T StackCommit,
PINITIAL_TEB InitialTeb)
{
NTSTATUS Status;
- SYSTEM_BASIC_INFORMATION SystemBasicInfo;
PIMAGE_NT_HEADERS Headers;
- ULONG_PTR Stack = 0;
- BOOLEAN UseGuard = FALSE;
-
- DPRINT("BasepCreateStack (hProcess: %lx, Max: %lx, Current: %lx)\n",
+ ULONG_PTR Stack;
+ BOOLEAN UseGuard;
+ ULONG PageSize, Dummy, AllocationGranularity;
+ SIZE_T StackReserveHeader, StackCommitHeader, GuardPageSize, GuaranteedStackCommit;
+ DPRINT("BaseCreateStack (hProcess: %lx, Max: %lx, Current: %lx)\n",
hProcess, StackReserve, StackCommit);
- /* Get some memory information */
- Status = NtQuerySystemInformation(SystemBasicInformation,
- &SystemBasicInfo,
- sizeof(SYSTEM_BASIC_INFORMATION),
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Failure to query system info\n");
- return Status;
- }
-
- /* Use the Image Settings if we are dealing with the current Process */
- if (hProcess == NtCurrentProcess())
- {
- /* Get the Image Headers */
- Headers = RtlImageNtHeader(NtCurrentPeb()->ImageBaseAddress);
-
- /* If we didn't get the parameters, find them ourselves */
- StackReserve = (StackReserve) ?
- StackReserve : Headers->OptionalHeader.SizeOfStackReserve;
- StackCommit = (StackCommit) ?
- StackCommit : Headers->OptionalHeader.SizeOfStackCommit;
- }
- else
- {
- /* Use the System Settings if needed */
- StackReserve = (StackReserve) ? StackReserve :
- SystemBasicInfo.AllocationGranularity;
- StackCommit = (StackCommit) ? StackCommit : SystemBasicInfo.PageSize;
- }
-
- /* Align everything to Page Size */
- StackReserve = ROUND_UP(StackReserve, SystemBasicInfo.AllocationGranularity);
- StackCommit = ROUND_UP(StackCommit, SystemBasicInfo.PageSize);
- #if 1 // FIXME: Remove once Guard Page support is here
+ /* Read page size */
+ PageSize = BaseStaticServerData->SysInfo.PageSize;
+ AllocationGranularity = BaseStaticServerData->SysInfo.AllocationGranularity;
+
+ /* Get the Image Headers */
+ Headers = RtlImageNtHeader(NtCurrentPeb()->ImageBaseAddress);
+ if (!Headers) return STATUS_INVALID_IMAGE_FORMAT;
+
+ StackCommitHeader = Headers->OptionalHeader.SizeOfStackCommit;
+ StackReserveHeader = Headers->OptionalHeader.SizeOfStackReserve;
+
+ if (!StackReserve) StackReserve = StackReserveHeader;
+
+ if (!StackCommit)
+ {
+ StackCommit = StackCommitHeader;
+ }
+ else if (StackCommit >= StackReserve)
+ {
+ StackReserve = ROUND_UP(StackCommit, 1024 * 1024);
+ }
+
+ StackCommit = ROUND_UP(StackCommit, PageSize);
+ StackReserve = ROUND_UP(StackReserve, AllocationGranularity);
+
+ GuaranteedStackCommit = NtCurrentTeb()->GuaranteedStackBytes;
+ if ((GuaranteedStackCommit) && (StackCommit < GuaranteedStackCommit))
+ {
+ StackCommit = GuaranteedStackCommit;
+ }
+
+ if (StackCommit >= StackReserve)
+ {
+ StackReserve = ROUND_UP(StackCommit, 1024 * 1024);
+ }
+
+ StackCommit = ROUND_UP(StackCommit, PageSize);
+ StackReserve = ROUND_UP(StackReserve, AllocationGranularity);
+
+ /* ROS Hack until we support guard page stack expansion */
StackCommit = StackReserve;
- #endif
- DPRINT("StackReserve: %lx, StackCommit: %lx\n", StackReserve,
StackCommit);
/* Reserve memory for the stack */
+ Stack = 0;
Status = ZwAllocateVirtualMemory(hProcess,
(PVOID*)&Stack,
0,
@@ -309,7 +313,7 @@
PAGE_READWRITE);
if (!NT_SUCCESS(Status))
{
- DPRINT1("Failure to reserve stack\n");
+ DPRINT1("Failure to reserve stack: %lx\n", Status);
return Status;
}
@@ -325,11 +329,15 @@
/* Check if we will need a guard page */
if (StackReserve > StackCommit)
{
- Stack -= SystemBasicInfo.PageSize;
- StackCommit += SystemBasicInfo.PageSize;
+ Stack -= PageSize;
+ StackCommit += PageSize;
UseGuard = TRUE;
}
-
+ else
+ {
+ UseGuard = FALSE;
+ }
+
/* Allocate memory for the stack */
Status = ZwAllocateVirtualMemory(hProcess,
(PVOID*)&Stack,
@@ -340,6 +348,8 @@
if (!NT_SUCCESS(Status))
{
DPRINT1("Failure to allocate stack\n");
+ GuardPageSize = 0;
+ ZwFreeVirtualMemory(hProcess, (PVOID*)&Stack, &GuardPageSize,
MEM_RELEASE);
return Status;
}
@@ -349,10 +359,8 @@
/* Create a guard page */
if (UseGuard)
{
- SIZE_T GuardPageSize = SystemBasicInfo.PageSize;
- ULONG Dummy;
-
- /* Attempt maximum space possible */
+ /* Set the guard page */
+ GuardPageSize = PAGE_SIZE;
Status = ZwProtectVirtualMemory(hProcess,
(PVOID*)&Stack,
&GuardPageSize,
@@ -360,12 +368,13 @@
&Dummy);
if (!NT_SUCCESS(Status))
{
- DPRINT1("Failure to create guard page\n");
+ DPRINT1("Failure to set guard page\n");
return Status;
}
/* Update the Stack Limit keeping in mind the Guard Page */
- InitialTeb->StackLimit = (PVOID)((ULONG_PTR)InitialTeb->StackLimit -
GuardPageSize);
+ InitialTeb->StackLimit = (PVOID)((ULONG_PTR)InitialTeb->StackLimit +
+ GuardPageSize);
}
/* We are done! */
Modified: trunk/reactos/dll/win32/kernel32/include/kernel32.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/include…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/include/kernel32.h [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/include/kernel32.h [iso-8859-1] Thu Nov 3 06:46:22
2011
@@ -173,7 +173,7 @@
NTSTATUS
WINAPI
-BasepCreateStack(HANDLE hProcess,
+BaseCreateStack(HANDLE hProcess,
SIZE_T StackReserve,
SIZE_T StackCommit,
PINITIAL_TEB InitialTeb);
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