This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-i386 / mach-xen / asm / ptrace.h

diff --git a/include/asm-i386/mach-xen/asm/ptrace.h b/include/asm-i386/mach-xen/asm/ptrace.h
new file mode 100644 (file)
index 0000000..8b95045
--- /dev/null
+++ b/include/asm-i386/mach-xen/asm/ptrace.h
@@ -0,0 +1,90 @@
+#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
+
+/* this struct defines the way the registers are stored on the 
+   stack during a system call. */
+
+struct pt_regs {
+       long ebx;
+       long ecx;
+       long edx;
+       long esi;
+       long edi;
+       long ebp;
+       long eax;
+       int  xds;
+       int  xes;
+       long orig_eax;
+       long eip;
+       int  xcs;
+       long eflags;
+       long esp;
+       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
+
+#define PTRACE_SYSEMU            31
+#define PTRACE_SYSEMU_SINGLESTEP  32
+
+#ifdef __KERNEL__
+
+#include <asm/vm86.h>
+
+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 & 2) != 0;
+}
+static inline int user_mode_vm(struct pt_regs *regs)
+{
+       return ((regs->xcs & 2) | (regs->eflags & VM_MASK)) != 0;
+}
+#define instruction_pointer(regs) ((regs)->eip)
+#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
+extern unsigned long profile_pc(struct pt_regs *regs);
+#else
+#define profile_pc(regs) instruction_pointer(regs)
+#endif
+#endif /* __KERNEL__ */
+
+#endif