xnu-2422.1.72.tar.gz

[apple/xnu.git] / osfmk / i386 / trap.h

diff --git a/osfmk/i386/trap.h b/osfmk/i386/trap.h
index 9ae4a8b5fea7358aa9ec0af3e11c0d5f17902c23..d5c14fe4fbf1c5e4aa63d883b6ea03839952c0b3 100644 (file)
--- a/osfmk/i386/trap.h
+++ b/osfmk/i386/trap.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -84,6 +84,15 @@
 #define T_SSE_FLOAT_ERROR       19
 /*                          20-126 */
 #define T_DTRACE_RET            127
+
+/* The SYSENTER and SYSCALL trap numbers are software constructs.
+ * These exceptions are dispatched directly to the system call handlers.
+ * See also the "software interrupt codes" section of
+ * osfmk/mach/i386/syscall_sw.h
+ */
+#define        T_SYSENTER              0x84
+#define        T_SYSCALL               0x85
+
 #define T_PREEMPT              255
 
 #define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \
@@ -105,7 +114,6 @@
 #define T_PF_EXECUTE           0x10            /* instruction fetch when NX */
 #endif
 
-
 #if !defined(ASSEMBLER) && defined(MACH_KERNEL)
 
 #include <i386/thread.h>
@@ -115,21 +123,18 @@ extern void               i386_exception(
                                mach_exception_code_t   code,
                                mach_exception_subcode_t subcode);
 
-extern void            sync_iss_to_iks(x86_saved_state32_t *regs);
+extern void            sync_iss_to_iks(x86_saved_state_t *regs);
 
 extern void            sync_iss_to_iks_unconditionally(
                                x86_saved_state_t       *regs);
 
-extern void            kernel_trap(x86_saved_state_t *regs);
+extern void            kernel_trap(x86_saved_state_t *regs, uintptr_t *lo_spp);
 
 extern void            user_trap(x86_saved_state_t *regs);
 
-extern void            panic_double_fault(int code);
+extern void            interrupt(x86_saved_state_t *regs);
 
 extern void            panic_double_fault64(x86_saved_state_t *regs);
-
-extern void            panic_machine_check(int code);
-
 extern void            panic_machine_check64(x86_saved_state_t *regs);
 
 extern void            i386_astintr(int preemption);
@@ -138,18 +143,20 @@ extern void               i386_astintr(int preemption);
 typedef kern_return_t (*perfCallback)(
                                int                     trapno,
                                void                    *regs,
-                               int                     unused1,
-                               int                     unused2);
+                               uintptr_t               *lo_spp,
+                                     int);
+
+typedef kern_return_t (*perfASTCallback)(ast_t reasons, ast_t *myast);
 
-extern perfCallback perfTrapHook;
-extern perfCallback perfASTHook;
-extern perfCallback perfIntHook;
+extern volatile perfCallback perfTrapHook;
+extern volatile perfASTCallback perfASTHook;
+extern volatile perfCallback perfIntHook;
 
 extern void            panic_i386_backtrace(void *, int, const char *, boolean_t, x86_saved_state_t *);
 #if MACH_KDP
 extern boolean_t       kdp_i386_trap(
                                unsigned int,
-                               x86_saved_state32_t *,
+                               x86_saved_state64_t *,
                                kern_return_t,
                                vm_offset_t);
 #endif /* MACH_KDP */