Author: tkreuzer
Date: Sat Mar 8 11:51:51 2014
New Revision: 62458
URL: http://svn.reactos.org/svn/reactos?rev=62458&view=rev
Log:
[PSEH3]
Enforce the use of a frame pointer in all functions that use PSEH, even when -fomit-frame-pointer option was specified. This way we don't need to explicitly tell PSEH with a global define, whether we have a frame pointer or not, which would also probably not have worked together with alloca().
Modified:
trunk/reactos/include/reactos/libs/pseh/pseh3.h
Modified: trunk/reactos/include/reactos/libs/pseh/pseh3.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/libs/pseh/…
==============================================================================
--- trunk/reactos/include/reactos/libs/pseh/pseh3.h [iso-8859-1] (original)
+++ trunk/reactos/include/reactos/libs/pseh/pseh3.h [iso-8859-1] Sat Mar 8 11:51:51 2014
@@ -93,6 +93,9 @@
/* CLANG specific definitions! */
#ifdef __clang__
+
+/* CLANG thinks it is smart and optimizes the alloca away if it is 0 and with it the use of a frame register */
+#define _SEH3$_EnforceFramePointer() asm volatile ("#\n" : : "m"(*(char*)__builtin_alloca(4)) : "%esp", "memory")
/* CLANG doesn't have asm goto! */
#define _SEH3$_ASM_GOTO(_Label, ...)
@@ -137,34 +140,30 @@
#else /* !__clang__ */
+/* This will make GCC use ebp, even if it was disabled by -fomit-frame-pointer */
+#define _SEH3$_EnforceFramePointer() asm volatile ("#\n" : : "m"(*(char*)__builtin_alloca(0)) : "%esp", "memory")
+
#define _SEH3$_ASM_GOTO(_Label, ...) asm goto ("#\n" : : : "memory", ## __VA_ARGS__ : _Label)
/* This is an asm wrapper around _SEH3$_RegisterFrame */
#define _SEH3$_RegisterFrame_(_TrylevelFrame, _DataTable) \
- asm goto ("leal %1, %%edx\n" \
+ asm goto ("leal %0, %%eax\n" \
+ "leal %1, %%edx\n" \
"call __SEH3$_RegisterFrame\n" \
: \
- : "a" (_TrylevelFrame), "m" (*(_DataTable)) \
+ : "m" (*(_TrylevelFrame)), "m" (*(_DataTable)) \
: "ecx", "edx", "memory" \
: _SEH3$_l_HandlerTarget)
/* This is an asm wrapper around _SEH3$_RegisterTryLevel */
#define _SEH3$_RegisterTryLevel_(_TrylevelFrame, _DataTable) \
- asm goto ("leal %1, %%edx\n" \
+ asm goto ("leal %0, %%eax\n" \
+ "leal %1, %%edx\n" \
"call __SEH3$_RegisterTryLevel\n" \
: \
- : "a" (_TrylevelFrame), "m" (*(_DataTable)) \
+ : "m" (*(_TrylevelFrame)), "m" (*(_DataTable)) \
: "ecx", "edx", "memory" \
: _SEH3$_l_HandlerTarget)
-
-/* Define the registers that get clobbered, when reaching the __except block.
- We specify ebp on optimized builds without frame pointer, since it will be
- used by GCC as a general purpose register then. */
-#if defined(__OPTIMIZE__) && defined(_ALLOW_OMIT_FRAME_POINTER)
-#define _SEH3$_CLOBBER_ON_EXCEPTION "ebp", "ebx", "ecx", "edx", "esi", "edi", "flags", "memory"
-#else
-#define _SEH3$_CLOBBER_ON_EXCEPTION "ebx", "ecx", "edx", "esi", "edi", "flags", "memory"
-#endif
/* This construct scares GCC so much, that it will stop moving code
around into places that are never executed. */
@@ -174,7 +173,7 @@
_SEH3$_ASM_GOTO(_SEH3$_l_HandlerTarget); \
_SEH3$_ASM_GOTO(_SEH3$_l_OnException); \
asm volatile ("#" : "=a"(plabel) : "p"(&&_SEH3$_l_BeforeTry), "p"(&&_SEH3$_l_HandlerTarget), "p"(&&_SEH3$_l_OnException) \
- : _SEH3$_CLOBBER_ON_EXCEPTION ); \
+ : "ebx", "ecx", "edx", "esi", "edi", "flags", "memory" ); \
goto _SEH3$_l_OnException;
#endif /* __clang__ */
@@ -317,11 +316,12 @@
_SEH3$_DEFINE_DUMMY_FINALLY(_SEH3$_FinallyFunction) \
\
/* Allow intrinsics for __except to be used */ \
- _SEH3$_DECLARE_EXCEPT_INTRINSICS() \
+ _SEH3$_DECLARE_EXCEPT_INTRINSICS(); \
\
goto _SEH3$_l_DoTry; \
\
_SEH3$_l_HandlerTarget: (void)0; \
+ _SEH3$_EnforceFramePointer(); \
\
if (1) \
{ \
@@ -355,6 +355,7 @@
goto _SEH3$_l_DoTry; \
\
_SEH3$_l_HandlerTarget: (void)0; \
+ _SEH3$_EnforceFramePointer(); \
\
_SEH3$_FINALLY_FUNC_OPEN(_SEH3$_FinallyFunction) \
/* This construct makes sure that the finally function returns */ \
Author: tkreuzer
Date: Sat Mar 8 11:37:03 2014
New Revision: 62457
URL: http://svn.reactos.org/svn/reactos?rev=62457&view=rev
Log:
[NPFS/NTOSKRNL]
Silence 2 more debug prints that are not so useful.
Modified:
trunk/reactos/drivers/filesystems/npfs/main.c
trunk/reactos/ntoskrnl/mm/ARM3/expool.c
Modified: trunk/reactos/drivers/filesystems/npfs/main.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/m…
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/main.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/npfs/main.c [iso-8859-1] Sat Mar 8 11:37:03 2014
@@ -330,7 +330,7 @@
NTSTATUS Status;
UNREFERENCED_PARAMETER(RegistryPath);
- DPRINT1("Next-Generation NPFS-Advanced\n");
+ DPRINT("Next-Generation NPFS-Advanced\n");
Status = NpInitializeAliases();
if (!NT_SUCCESS(Status))
Modified: trunk/reactos/ntoskrnl/mm/ARM3/expool.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/expool.c?…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/expool.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/expool.c [iso-8859-1] Sat Mar 8 11:37:03 2014
@@ -1336,7 +1336,7 @@
InterlockedIncrementUL(&ExpPoolBigEntriesInUse);
if ((i >= 16) && (ExpPoolBigEntriesInUse > (TableSize / 4)))
{
- DPRINT1("Should attempt expansion since we now have %lu entries\n",
+ DPRINT("Should attempt expansion since we now have %lu entries\n",
ExpPoolBigEntriesInUse);
}