#include <linux/compiler.h> /* For __user */
#include <asm/ptrace-abi.h>
+
#ifndef __ASSEMBLY__
#ifdef __i386__
/* this struct defines the way the registers are stored on the
stack during a system call. */
+#ifndef __KERNEL__
+
struct pt_regs {
long ebx;
long ecx;
int xds;
int xes;
int xfs;
- /* int xgs; */
+ /* int gs; */
long orig_eax;
long eip;
int xcs;
int xss;
};
-#ifdef __KERNEL__
+#else /* __KERNEL__ */
+
+struct pt_regs {
+ unsigned long bx;
+ unsigned long cx;
+ unsigned long dx;
+ unsigned long si;
+ unsigned long di;
+ unsigned long bp;
+ unsigned long ax;
+ unsigned long ds;
+ unsigned long es;
+ unsigned long fs;
+ /* int gs; */
+ unsigned long orig_ax;
+ unsigned long ip;
+ unsigned long cs;
+ unsigned long flags;
+ unsigned long sp;
+ unsigned long ss;
+};
#include <asm/vm86.h>
#include <asm/segment.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 & SEGMENT_RPL_MASK) == USER_RPL;
-}
-static inline int user_mode_vm(struct pt_regs *regs)
-{
- return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
-}
-static inline int v8086_mode(struct pt_regs *regs)
-{
- return (regs->eflags & VM_MASK);
-}
-
-#define instruction_pointer(regs) ((regs)->eip)
-#define frame_pointer(regs) ((regs)->ebp)
-#define stack_pointer(regs) ((unsigned long)(regs))
-#define regs_return_value(regs) ((regs)->eax)
-
-extern unsigned long profile_pc(struct pt_regs *regs);
#endif /* __KERNEL__ */
#else /* __i386__ */
+#ifndef __KERNEL__
+
struct pt_regs {
unsigned long r15;
unsigned long r14;
/* top of stack page */
};
+#else /* __KERNEL__ */
+
+struct pt_regs {
+ unsigned long r15;
+ unsigned long r14;
+ unsigned long r13;
+ unsigned long r12;
+ unsigned long bp;
+ unsigned long bx;
+/* arguments: non interrupts/non tracing syscalls only save upto here*/
+ unsigned long r11;
+ unsigned long r10;
+ unsigned long r9;
+ unsigned long r8;
+ unsigned long ax;
+ unsigned long cx;
+ unsigned long dx;
+ unsigned long si;
+ unsigned long di;
+ unsigned long orig_ax;
+/* end of arguments */
+/* cpu exception frame or undefined */
+ unsigned long ip;
+ unsigned long cs;
+ unsigned long flags;
+ unsigned long sp;
+ unsigned long ss;
+/* top of stack page */
+};
+
+#endif /* __KERNEL__ */
+#endif /* !__i386__ */
+
#ifdef __KERNEL__
-#define user_mode(regs) (!!((regs)->cs & 3))
-#define user_mode_vm(regs) user_mode(regs)
-#define instruction_pointer(regs) ((regs)->rip)
-#define frame_pointer(regs) ((regs)->rbp)
-#define stack_pointer(regs) ((regs)->rsp)
-#define regs_return_value(regs) ((regs)->rax)
+/* the DS BTS struct is used for ptrace as well */
+#include <asm/ds.h>
+
+struct task_struct;
+
+extern void ptrace_bts_take_timestamp(struct task_struct *, enum bts_qualifier);
extern unsigned long profile_pc(struct pt_regs *regs);
+
+extern unsigned long
+convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs);
+
+#ifdef CONFIG_X86_32
+extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
+ int error_code);
+#else
void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
+#endif
-struct task_struct;
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+ return regs->ax;
+}
+
+/*
+ * 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)
+{
+#ifdef CONFIG_X86_32
+ return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
+#else
+ return !!(regs->cs & 3);
+#endif
+}
+
+static inline int user_mode_vm(struct pt_regs *regs)
+{
+#ifdef CONFIG_X86_32
+ return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
+ USER_RPL;
+#else
+ return user_mode(regs);
+#endif
+}
+
+static inline int v8086_mode(struct pt_regs *regs)
+{
+#ifdef CONFIG_X86_32
+ return (regs->flags & X86_VM_MASK);
+#else
+ return 0; /* No V86 mode support in long mode */
+#endif
+}
+
+/*
+ * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode
+ * when it traps. So regs will be the current sp.
+ *
+ * This is valid only for kernel mode traps.
+ */
+static inline unsigned long kernel_trap_sp(struct pt_regs *regs)
+{
+#ifdef CONFIG_X86_32
+ return (unsigned long)regs;
+#else
+ return regs->sp;
+#endif
+}
+
+static inline unsigned long instruction_pointer(struct pt_regs *regs)
+{
+ return regs->ip;
+}
+
+static inline unsigned long frame_pointer(struct pt_regs *regs)
+{
+ return regs->bp;
+}
+
+/*
+ * These are defined as per linux/ptrace.h, which see.
+ */
+#define arch_has_single_step() (1)
+extern void user_enable_single_step(struct task_struct *);
+extern void user_disable_single_step(struct task_struct *);
+
+extern void user_enable_block_step(struct task_struct *);
+#ifdef CONFIG_X86_DEBUGCTLMSR
+#define arch_has_block_step() (1)
+#else
+#define arch_has_block_step() (boot_cpu_data.x86 >= 6)
+#endif
+
+struct user_desc;
+extern int do_get_thread_area(struct task_struct *p, int idx,
+ struct user_desc __user *info);
+extern int do_set_thread_area(struct task_struct *p, int idx,
+ struct user_desc __user *info, int can_allocate);
+
+#define __ARCH_WANT_COMPAT_SYS_PTRACE
-extern unsigned long
-convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs);
-
-enum {
- EF_CF = 0x00000001,
- EF_PF = 0x00000004,
- EF_AF = 0x00000010,
- EF_ZF = 0x00000040,
- EF_SF = 0x00000080,
- EF_TF = 0x00000100,
- EF_IE = 0x00000200,
- EF_DF = 0x00000400,
- EF_OF = 0x00000800,
- EF_IOPL = 0x00003000,
- EF_IOPL_RING0 = 0x00000000,
- EF_IOPL_RING1 = 0x00001000,
- EF_IOPL_RING2 = 0x00002000,
- EF_NT = 0x00004000, /* nested task */
- EF_RF = 0x00010000, /* resume */
- EF_VM = 0x00020000, /* virtual mode */
- EF_AC = 0x00040000, /* alignment */
- EF_VIF = 0x00080000, /* virtual interrupt */
- EF_VIP = 0x00100000, /* virtual interrupt pending */
- EF_ID = 0x00200000, /* id */
-};
#endif /* __KERNEL__ */
-#endif /* !__i386__ */
+
#endif /* !__ASSEMBLY__ */
#endif
git.openpandora.org / pandora-kernel.git / blobdiff