[sginsberg] 68937: - Enable placing kernel functions in the .INIT section (GCC only, MSVC is TBD). This allows them to be freed from memory after initialization is finished. - PspMapSystemDll and I...

Author: sginsberg
Date: Thu Sep  3 15:31:09 2015
New Revision: 68937

URL: http://svn.reactos.org/svn/reactos?rev=68937&view=rev
Log:
- Enable placing kernel functions in the .INIT section (GCC only, MSVC is TBD). This
allows them to be freed from memory after initialization is finished.
- PspMapSystemDll and IopDisplayLoadingMessage are called from non-initialization code, so
don't put them in .INIT. CmpHiveRootSecurityDescriptor is called from initialization
code, but too late in boot, so don't discard it either.
- Trying to enable this for HAL as well leads to a weird crash very early in boot.
Investigation is ongoing. Until then we will just have to keep the huge PCI Class/Vendor
tables in memory...
- Enable it for Win32k though as it seems to work fine there.
- Remove INIT_FUNCTION from function prototypes, it serves no purpose there.
See issue 10097 for more details.

Modified:
    trunk/reactos/ntoskrnl/config/cmse.c
    trunk/reactos/ntoskrnl/include/internal/dbgk.h
    trunk/reactos/ntoskrnl/include/internal/io.h
    trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h
    trunk/reactos/ntoskrnl/io/iomgr/driver.c
    trunk/reactos/ntoskrnl/ps/psmgr.c
    trunk/reactos/win32ss/win32kp.h

Modified: trunk/reactos/ntoskrnl/config/cmse.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/config/cmse.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/config/cmse.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/config/cmse.c	[iso-8859-1] Thu Sep  3 15:31:09 2015
@@ -16,9 +16,9 @@
 
 /* FUNCTIONS *****************************************************************/
 
+//INIT_FUNCTION
 PSECURITY_DESCRIPTOR
 NTAPI
-INIT_FUNCTION
 CmpHiveRootSecurityDescriptor(VOID)
 {
     NTSTATUS Status;

Modified: trunk/reactos/ntoskrnl/include/internal/dbgk.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/dbgk.h	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/dbgk.h	[iso-8859-1] Thu Sep  3 15:31:09 2015
@@ -47,7 +47,6 @@
 #endif
 
 VOID
-INIT_FUNCTION
 NTAPI
 DbgkInitialize(
     VOID

Modified: trunk/reactos/ntoskrnl/include/internal/io.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/io.h	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/io.h	[iso-8859-1] Thu Sep  3 15:31:09 2015
@@ -662,7 +662,6 @@
 );
 
 NTSTATUS
-INIT_FUNCTION
 IopInitPlugPlayEvents(VOID);
 
 NTSTATUS

Modified: trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h	[iso-8859-1] Thu Sep  3 15:31:09
2015
@@ -3,16 +3,15 @@
 /*
  * Use these to place a function in a specific section of the executable
  */
-#define PLACE_IN_SECTION(s)	__attribute__((section (s)))
 #ifdef __GNUC__
-#define INIT_FUNCTION
-#define PAGE_LOCKED_FUNCTION	PLACE_IN_SECTION("pagelk")
-#define PAGE_UNLOCKED_FUNCTION	PLACE_IN_SECTION("pagepo")
+#define INIT_SECTION __attribute__((section ("INIT")))
+#define INIT_FUNCTION INIT_SECTION
 #else
-#define INIT_FUNCTION
-#define PAGE_LOCKED_FUNCTION
-#define PAGE_UNLOCKED_FUNCTION
-#endif
+#define INIT_SECTION /* Done via alloc_text for MSC */
+#define INIT_FUNCTION INIT_SECTION
+#endif
+
+
 
 #ifdef _NTOSKRNL_
 

Modified: trunk/reactos/ntoskrnl/io/iomgr/driver.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/driver.c…
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/driver.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/driver.c	[iso-8859-1] Thu Sep  3 15:31:09 2015
@@ -197,7 +197,6 @@
  */
 VOID
 FASTCALL
-INIT_FUNCTION
 IopDisplayLoadingMessage(PUNICODE_STRING ServiceName)
 {
     CHAR TextBuffer[256];

Modified: trunk/reactos/ntoskrnl/ps/psmgr.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ps/psmgr.c?rev=68…
==============================================================================
--- trunk/reactos/ntoskrnl/ps/psmgr.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ps/psmgr.c	[iso-8859-1] Thu Sep  3 15:31:09 2015
@@ -242,7 +242,6 @@
 
 NTSTATUS
 NTAPI
-INIT_FUNCTION
 PspMapSystemDll(IN PEPROCESS Process,
                 IN PVOID *DllBase,
                 IN BOOLEAN UseLargePages)

Modified: trunk/reactos/win32ss/win32kp.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/win32kp.h?rev=6893…
==============================================================================
--- trunk/reactos/win32ss/win32kp.h	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/win32kp.h	[iso-8859-1] Thu Sep  3 15:31:09 2015
@@ -10,15 +10,12 @@
 
 #pragma once
 
-#if 0
-#ifndef _MSC_VER
-#define PLACE_IN_SECTION(s) __attribute__((section(s)))
-#define INIT_FUNCTION PLACE_IN_SECTION("INIT")
+#ifdef __GNUC__
+#define INIT_SECTION __attribute__((section ("INIT")))
+#define INIT_FUNCTION INIT_SECTION
 #else
-#define INIT_FUNCTION
-#endif
-#else
-#define INIT_FUNCTION
+#define INIT_SECTION  /* Done via alloc_text for MSC */
+#define INIT_FUNCTION INIT_SECTION
 #endif
 
 /* Enable debugging features */