--- trunk/reactos/include/crt/excpt.h 2006-01-28 18:25:42 UTC (rev 18)
+++ trunk/reactos/include/crt/excpt.h 2006-01-28 18:26:57 UTC (rev 19)
@@ -0,0 +1,94 @@
+/*
+ * excpt.h
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is a part of the mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within the package.
+ *
+ * Support for operating system level structured exception handling.
+ *
+ * NOTE: This is very preliminary stuff. I am also pretty sure it is
+ * completely Intel specific.
+ *
+ */
+
+#ifndef _EXCPT_H_
+#define _EXCPT_H_
+
+/* All the headers include this file. */
+#if defined(__MINGW32__)
+#include <_mingw.h>
+#endif
+
+/*
+ * NOTE: The constants structs and typedefs below should be defined in the
+ * Win32 API headers.
+ */
+#define EXCEPTION_EXECUTE_HANDLER 1
+#define EXCEPTION_CONTINUE_SEARCH 0
+#define EXCEPTION_CONTINUE_EXECUTION -1
+
+#define EH_NONCONTINUABLE 0x01
+#define EH_UNWINDING 0x02
+#define EH_EXIT_UNWIND 0x04
+#define EH_STACK_INVALID 0x08
+#define EH_NESTED_CALL 0x10
+
+#ifndef RC_INVOKED
+
+typedef enum {
+ ExceptionContinueExecution,
+ ExceptionContinueSearch,
+ ExceptionNestedException,
+ ExceptionCollidedUnwind
+} EXCEPTION_DISPOSITION;
+
+
+/*
+ * End of stuff that should be in the Win32 API files.
+ */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * The type of function that is expected as an exception handler to be
+ * installed with _try1.
+ */
+typedef EXCEPTION_DISPOSITION (*PEXCEPTION_HANDLER)
+ (struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*);
+
+
+/*
+ * A macro which installs the supplied exception handler.
+ * Push the pointer to the new handler onto the stack,
+ * then push the pointer to the old registration structure (at fs:0)
+ * onto the stack, then put a pointer to the new registration
+ * structure (i.e. the current stack pointer) at fs:0.
+ */
+#define __try1(pHandler) \
+ __asm__ ("pushl %0;pushl %%fs:0;movl %%esp,%%fs:0;" : : "g" (pHandler));
+
+/*
+ * A macro which (despite its name) *removes* an installed
+ * exception handler. Should be used only in conjunction with the above
+ * install routine __try1.
+ * Move the pointer to the old reg. struct (at the current stack
+ * position) to fs:0, replacing the pointer we installed above,
+ * then add 8 to the stack pointer to get rid of the space we
+ * used when we pushed on our new reg. struct above. Notice that
+ * the stack must be in the exact state at this point that it was
+ * after we did _try1 or this will smash things.
+ */
+#define __except1 \
+ __asm__ ("movl (%%esp),%%eax;movl %%eax,%%fs:0;addl $8,%%esp;" \
+ : : : "%eax");
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Not RC_INVOKED */
+
+#endif /* _EXCPT_H_ not defined */