Merge branch 'master' into upstream

[sfrench/cifs-2.6.git] / include / asm-i386 / ptrace.h

diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h
index 05532875e39e2846a7d757f242617990d039d279..1910880fcd40d95aa67a4f3d242845acd90b59a9 100644 (file)
--- a/include/asm-i386/ptrace.h
+++ b/include/asm-i386/ptrace.h
@@ -1,24 +1,7 @@
 #ifndef _I386_PTRACE_H
 #define _I386_PTRACE_H
 
-#define EBX 0
-#define ECX 1
-#define EDX 2
-#define ESI 3
-#define EDI 4
-#define EBP 5
-#define EAX 6
-#define DS 7
-#define ES 8
-#define FS 9
-#define GS 10
-#define ORIG_EAX 11
-#define EIP 12
-#define CS  13
-#define EFL 14
-#define UESP 15
-#define SS   16
-#define FRAME_SIZE 17
+#include <asm/ptrace-abi.h>
 
 /* this struct defines the way the registers are stored on the 
    stack during a system call. */
@@ -41,19 +24,6 @@ struct pt_regs {
        int  xss;
 };
 
-/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
-#define PTRACE_GETREGS            12
-#define PTRACE_SETREGS            13
-#define PTRACE_GETFPREGS          14
-#define PTRACE_SETFPREGS          15
-#define PTRACE_GETFPXREGS         18
-#define PTRACE_SETFPXREGS         19
-
-#define PTRACE_OLDSETOPTIONS         21
-
-#define PTRACE_GET_THREAD_AREA    25
-#define PTRACE_SET_THREAD_AREA    26
-
 #ifdef __KERNEL__
 
 #include <asm/vm86.h>
@@ -61,6 +31,13 @@ struct pt_regs {
 struct task_struct;
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
 
+/*
+ * user_mode_vm(regs) determines whether a register set came from user mode.
+ * This is true if V8086 mode was enabled OR if the register set was from
+ * protected mode with RPL-3 CS value.  This tricky test checks that with
+ * one comparison.  Many places in the kernel can bypass this full check
+ * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
+ */
 static inline int user_mode(struct pt_regs *regs)
 {
        return (regs->xcs & 3) != 0;