Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / arch / powerpc / kernel / ptrace-common.h

diff --git a/arch/powerpc/kernel/ptrace-common.h b/arch/powerpc/kernel/ptrace-common.h
index c42a860..e69de29 100644 (file)
--- a/arch/powerpc/kernel/ptrace-common.h
+++ b/arch/powerpc/kernel/ptrace-common.h
@@ -1,162 +0,0 @@
-/*
- *    Copyright (c) 2002 Stephen Rothwell, IBM Coproration
- *    Extracted from ptrace.c and ptrace32.c
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file README.legal in the main directory of
- * this archive for more details.
- */
-
-#ifndef _PPC64_PTRACE_COMMON_H
-#define _PPC64_PTRACE_COMMON_H
-
-#include <linux/config.h>
-#include <asm/system.h>
-
-/*
- * Set of msr bits that gdb can change on behalf of a process.
- */
-#define MSR_DEBUGCHANGE        (MSR_FE0 | MSR_SE | MSR_BE | MSR_FE1)
-
-/*
- * Get contents of register REGNO in task TASK.
- */
-static inline unsigned long get_reg(struct task_struct *task, int regno)
-{
-       unsigned long tmp = 0;
-
-       /*
-        * Put the correct FP bits in, they might be wrong as a result
-        * of our lazy FP restore.
-        */
-       if (regno == PT_MSR) {
-               tmp = ((unsigned long *)task->thread.regs)[PT_MSR];
-               tmp |= task->thread.fpexc_mode;
-       } else if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long))) {
-               tmp = ((unsigned long *)task->thread.regs)[regno];
-       }
-
-       return tmp;
-}
-
-/*
- * Write contents of register REGNO in task TASK.
- */
-static inline int put_reg(struct task_struct *task, int regno,
-                         unsigned long data)
-{
-       if (regno < PT_SOFTE) {
-               if (regno == PT_MSR)
-                       data = (data & MSR_DEBUGCHANGE)
-                               | (task->thread.regs->msr & ~MSR_DEBUGCHANGE);
-               ((unsigned long *)task->thread.regs)[regno] = data;
-               return 0;
-       }
-       return -EIO;
-}
-
-static inline void set_single_step(struct task_struct *task)
-{
-       struct pt_regs *regs = task->thread.regs;
-       if (regs != NULL)
-               regs->msr |= MSR_SE;
-       set_tsk_thread_flag(task, TIF_SINGLESTEP);
-}
-
-static inline void clear_single_step(struct task_struct *task)
-{
-       struct pt_regs *regs = task->thread.regs;
-       if (regs != NULL)
-               regs->msr &= ~MSR_SE;
-       clear_tsk_thread_flag(task, TIF_SINGLESTEP);
-}
-
-#ifdef CONFIG_ALTIVEC
-/*
- * Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go.
- * The transfer totals 34 quadword.  Quadwords 0-31 contain the
- * corresponding vector registers.  Quadword 32 contains the vscr as the
- * last word (offset 12) within that quadword.  Quadword 33 contains the
- * vrsave as the first word (offset 0) within the quadword.
- *
- * This definition of the VMX state is compatible with the current PPC32
- * ptrace interface.  This allows signal handling and ptrace to use the
- * same structures.  This also simplifies the implementation of a bi-arch
- * (combined (32- and 64-bit) gdb.
- */
-
-/*
- * Get contents of AltiVec register state in task TASK
- */
-static inline int get_vrregs(unsigned long __user *data,
-                            struct task_struct *task)
-{
-       unsigned long regsize;
-
-       /* copy AltiVec registers VR[0] .. VR[31] */
-       regsize = 32 * sizeof(vector128);
-       if (copy_to_user(data, task->thread.vr, regsize))
-               return -EFAULT;
-       data += (regsize / sizeof(unsigned long));
-
-       /* copy VSCR */
-       regsize = 1 * sizeof(vector128);
-       if (copy_to_user(data, &task->thread.vscr, regsize))
-               return -EFAULT;
-       data += (regsize / sizeof(unsigned long));
-
-       /* copy VRSAVE */
-       if (put_user(task->thread.vrsave, (u32 __user *)data))
-               return -EFAULT;
-
-       return 0;
-}
-
-/*
- * Write contents of AltiVec register state into task TASK.
- */
-static inline int set_vrregs(struct task_struct *task,
-                            unsigned long __user *data)
-{
-       unsigned long regsize;
-
-       /* copy AltiVec registers VR[0] .. VR[31] */
-       regsize = 32 * sizeof(vector128);
-       if (copy_from_user(task->thread.vr, data, regsize))
-               return -EFAULT;
-       data += (regsize / sizeof(unsigned long));
-
-       /* copy VSCR */
-       regsize = 1 * sizeof(vector128);
-       if (copy_from_user(&task->thread.vscr, data, regsize))
-               return -EFAULT;
-       data += (regsize / sizeof(unsigned long));
-
-       /* copy VRSAVE */
-       if (get_user(task->thread.vrsave, (u32 __user *)data))
-               return -EFAULT;
-
-       return 0;
-}
-#endif
-
-static inline int ptrace_set_debugreg(struct task_struct *task,
-                                     unsigned long addr, unsigned long data)
-{
-       /* We only support one DABR and no IABRS at the moment */
-       if (addr > 0)
-               return -EINVAL;
-
-       /* The bottom 3 bits are flags */
-       if ((data & ~0x7UL) >= TASK_SIZE)
-               return -EIO;
-
-       /* Ensure translation is on */
-       if (data && !(data & DABR_TRANSLATION))
-               return -EIO;
-
-       task->thread.dabr = data;
-       return 0;
-}
-
-#endif /* _PPC64_PTRACE_COMMON_H */