[POWERPC] Uninline common ptrace bits
This folds back the ptrace-common.h bits back into ptrace.c and removes that file. The FSL SPE bits from ptrace-ppc32.h are folded back in as well. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
Paul Mackerras
parent
e17666ba48
commit
865418d8e7
5 changed files with 237 additions and 254 deletions
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@ -1,177 +0,0 @@
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/*
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* Copyright (c) 2002 Stephen Rothwell, IBM Coproration
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* Copyright (c) 2007 Benjamin Herrenschmidt, IBM Coproration
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* Extracted from ptrace.c and ptrace32.c
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*
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* This file is subject to the terms and conditions of the GNU General
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* Public License. See the file README.legal in the main directory of
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* this archive for more details.
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*/
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#ifndef _POWERPC_PTRACE_COMMON_H
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#define _POWERPC_PTRACE_COMMON_H
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/*
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* Get contents of register REGNO in task TASK.
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*/
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static inline unsigned long get_reg(struct task_struct *task, int regno)
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{
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unsigned long tmp = 0;
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if (task->thread.regs == NULL)
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return -EIO;
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if (regno == PT_MSR) {
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tmp = ((unsigned long *)task->thread.regs)[PT_MSR];
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return PT_MUNGE_MSR(tmp, task);
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}
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if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long)))
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return ((unsigned long *)task->thread.regs)[regno];
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return -EIO;
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}
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/*
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* Write contents of register REGNO in task TASK.
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*/
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static inline int put_reg(struct task_struct *task, int regno,
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unsigned long data)
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{
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if (task->thread.regs == NULL)
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return -EIO;
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if (regno <= PT_MAX_PUT_REG) {
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if (regno == PT_MSR)
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data = (data & MSR_DEBUGCHANGE)
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| (task->thread.regs->msr & ~MSR_DEBUGCHANGE);
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((unsigned long *)task->thread.regs)[regno] = data;
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return 0;
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}
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return -EIO;
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}
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static inline int get_fpregs(void __user *data,
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struct task_struct *task,
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int has_fpscr)
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{
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unsigned int count = has_fpscr ? 33 : 32;
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if (copy_to_user(data, task->thread.fpr, count * sizeof(double)))
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return -EFAULT;
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return 0;
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}
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static inline int set_fpregs(void __user *data,
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struct task_struct *task,
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int has_fpscr)
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{
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unsigned int count = has_fpscr ? 33 : 32;
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if (copy_from_user(task->thread.fpr, data, count * sizeof(double)))
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return -EFAULT;
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return 0;
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}
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#ifdef CONFIG_ALTIVEC
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/*
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* Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go.
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* The transfer totals 34 quadword. Quadwords 0-31 contain the
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* corresponding vector registers. Quadword 32 contains the vscr as the
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* last word (offset 12) within that quadword. Quadword 33 contains the
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* vrsave as the first word (offset 0) within the quadword.
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*
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* This definition of the VMX state is compatible with the current PPC32
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* ptrace interface. This allows signal handling and ptrace to use the
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* same structures. This also simplifies the implementation of a bi-arch
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* (combined (32- and 64-bit) gdb.
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*/
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/*
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* Get contents of AltiVec register state in task TASK
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*/
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static inline int get_vrregs(unsigned long __user *data,
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struct task_struct *task)
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{
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unsigned long regsize;
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/* copy AltiVec registers VR[0] .. VR[31] */
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regsize = 32 * sizeof(vector128);
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if (copy_to_user(data, task->thread.vr, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VSCR */
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regsize = 1 * sizeof(vector128);
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if (copy_to_user(data, &task->thread.vscr, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VRSAVE */
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if (put_user(task->thread.vrsave, (u32 __user *)data))
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return -EFAULT;
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return 0;
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}
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/*
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* Write contents of AltiVec register state into task TASK.
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*/
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static inline int set_vrregs(struct task_struct *task,
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unsigned long __user *data)
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{
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unsigned long regsize;
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/* copy AltiVec registers VR[0] .. VR[31] */
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regsize = 32 * sizeof(vector128);
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if (copy_from_user(task->thread.vr, data, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VSCR */
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regsize = 1 * sizeof(vector128);
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if (copy_from_user(&task->thread.vscr, data, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VRSAVE */
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if (get_user(task->thread.vrsave, (u32 __user *)data))
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return -EFAULT;
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return 0;
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}
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#endif /* CONFIG_ALTIVEC */
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static inline void set_single_step(struct task_struct *task)
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{
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struct pt_regs *regs = task->thread.regs;
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if (regs != NULL) {
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#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
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task->thread.dbcr0 = DBCR0_IDM | DBCR0_IC;
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regs->msr |= MSR_DE;
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#else
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regs->msr |= MSR_SE;
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#endif
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}
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set_tsk_thread_flag(task, TIF_SINGLESTEP);
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}
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static inline void clear_single_step(struct task_struct *task)
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{
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struct pt_regs *regs = task->thread.regs;
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if (regs != NULL) {
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#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
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task->thread.dbcr0 = 0;
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regs->msr &= ~MSR_DE;
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#else
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regs->msr &= ~MSR_SE;
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#endif
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}
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clear_tsk_thread_flag(task, TIF_SINGLESTEP);
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}
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#endif /* _POWERPC_PTRACE_COMMON_H */
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@ -32,69 +32,4 @@
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#define PT_MUNGE_MSR(msr, task) (msr)
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#ifdef CONFIG_SPE
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/*
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* For get_evrregs/set_evrregs functions 'data' has the following layout:
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*
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* struct {
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* u32 evr[32];
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* u64 acc;
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* u32 spefscr;
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* }
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*/
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/*
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* Get contents of SPE register state in task TASK.
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*/
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static inline int get_evrregs(unsigned long *data, struct task_struct *task)
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{
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int i;
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if (!access_ok(VERIFY_WRITE, data, 35 * sizeof(unsigned long)))
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return -EFAULT;
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/* copy SPEFSCR */
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if (__put_user(task->thread.spefscr, &data[34]))
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return -EFAULT;
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/* copy SPE registers EVR[0] .. EVR[31] */
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for (i = 0; i < 32; i++, data++)
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if (__put_user(task->thread.evr[i], data))
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return -EFAULT;
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/* copy ACC */
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if (__put_user64(task->thread.acc, (unsigned long long *)data))
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return -EFAULT;
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return 0;
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}
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/*
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* Write contents of SPE register state into task TASK.
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*/
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static inline int set_evrregs(struct task_struct *task, unsigned long *data)
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{
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int i;
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if (!access_ok(VERIFY_READ, data, 35 * sizeof(unsigned long)))
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return -EFAULT;
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/* copy SPEFSCR */
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if (__get_user(task->thread.spefscr, &data[34]))
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return -EFAULT;
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/* copy SPE registers EVR[0] .. EVR[31] */
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for (i = 0; i < 32; i++, data++)
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if (__get_user(task->thread.evr[i], data))
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return -EFAULT;
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/* copy ACC */
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if (__get_user64(task->thread.acc, (unsigned long long*)data))
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return -EFAULT;
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return 0;
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}
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#endif /* CONFIG_SPE */
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#endif /* _POWERPC_PTRACE_PPC32_H */
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@ -41,13 +41,234 @@
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#include "ptrace-ppc32.h"
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#endif
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#include "ptrace-common.h"
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/*
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* does not yet catch signals sent when the child dies.
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* in exit.c or in signal.c.
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*/
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/*
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* Get contents of register REGNO in task TASK.
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*/
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unsigned long ptrace_get_reg(struct task_struct *task, int regno)
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{
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unsigned long tmp = 0;
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if (task->thread.regs == NULL)
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return -EIO;
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if (regno == PT_MSR) {
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tmp = ((unsigned long *)task->thread.regs)[PT_MSR];
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return PT_MUNGE_MSR(tmp, task);
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}
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if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long)))
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return ((unsigned long *)task->thread.regs)[regno];
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return -EIO;
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}
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/*
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* Write contents of register REGNO in task TASK.
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*/
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int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data)
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{
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if (task->thread.regs == NULL)
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return -EIO;
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if (regno <= PT_MAX_PUT_REG) {
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if (regno == PT_MSR)
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data = (data & MSR_DEBUGCHANGE)
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| (task->thread.regs->msr & ~MSR_DEBUGCHANGE);
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((unsigned long *)task->thread.regs)[regno] = data;
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return 0;
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}
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return -EIO;
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}
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static int get_fpregs(void __user *data, struct task_struct *task,
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int has_fpscr)
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{
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unsigned int count = has_fpscr ? 33 : 32;
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if (copy_to_user(data, task->thread.fpr, count * sizeof(double)))
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return -EFAULT;
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return 0;
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}
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static int set_fpregs(void __user *data, struct task_struct *task,
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int has_fpscr)
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{
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unsigned int count = has_fpscr ? 33 : 32;
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if (copy_from_user(task->thread.fpr, data, count * sizeof(double)))
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return -EFAULT;
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return 0;
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}
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#ifdef CONFIG_ALTIVEC
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/*
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* Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go.
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* The transfer totals 34 quadword. Quadwords 0-31 contain the
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* corresponding vector registers. Quadword 32 contains the vscr as the
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* last word (offset 12) within that quadword. Quadword 33 contains the
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* vrsave as the first word (offset 0) within the quadword.
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*
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* This definition of the VMX state is compatible with the current PPC32
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* ptrace interface. This allows signal handling and ptrace to use the
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* same structures. This also simplifies the implementation of a bi-arch
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* (combined (32- and 64-bit) gdb.
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*/
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/*
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* Get contents of AltiVec register state in task TASK
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*/
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static int get_vrregs(unsigned long __user *data, struct task_struct *task)
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{
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unsigned long regsize;
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/* copy AltiVec registers VR[0] .. VR[31] */
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regsize = 32 * sizeof(vector128);
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if (copy_to_user(data, task->thread.vr, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VSCR */
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regsize = 1 * sizeof(vector128);
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if (copy_to_user(data, &task->thread.vscr, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VRSAVE */
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if (put_user(task->thread.vrsave, (u32 __user *)data))
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return -EFAULT;
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return 0;
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}
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/*
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* Write contents of AltiVec register state into task TASK.
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*/
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static int set_vrregs(struct task_struct *task, unsigned long __user *data)
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{
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unsigned long regsize;
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/* copy AltiVec registers VR[0] .. VR[31] */
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regsize = 32 * sizeof(vector128);
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if (copy_from_user(task->thread.vr, data, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VSCR */
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regsize = 1 * sizeof(vector128);
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if (copy_from_user(&task->thread.vscr, data, regsize))
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return -EFAULT;
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data += (regsize / sizeof(unsigned long));
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/* copy VRSAVE */
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if (get_user(task->thread.vrsave, (u32 __user *)data))
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return -EFAULT;
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return 0;
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}
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#endif /* CONFIG_ALTIVEC */
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#ifdef CONFIG_SPE
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/*
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* For get_evrregs/set_evrregs functions 'data' has the following layout:
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*
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* struct {
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* u32 evr[32];
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* u64 acc;
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* u32 spefscr;
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* }
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*/
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/*
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* Get contents of SPE register state in task TASK.
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*/
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static int get_evrregs(unsigned long *data, struct task_struct *task)
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{
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int i;
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if (!access_ok(VERIFY_WRITE, data, 35 * sizeof(unsigned long)))
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return -EFAULT;
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/* copy SPEFSCR */
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if (__put_user(task->thread.spefscr, &data[34]))
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return -EFAULT;
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/* copy SPE registers EVR[0] .. EVR[31] */
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for (i = 0; i < 32; i++, data++)
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if (__put_user(task->thread.evr[i], data))
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return -EFAULT;
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/* copy ACC */
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if (__put_user64(task->thread.acc, (unsigned long long *)data))
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return -EFAULT;
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return 0;
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}
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/*
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* Write contents of SPE register state into task TASK.
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*/
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static int set_evrregs(struct task_struct *task, unsigned long *data)
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{
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int i;
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if (!access_ok(VERIFY_READ, data, 35 * sizeof(unsigned long)))
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return -EFAULT;
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/* copy SPEFSCR */
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if (__get_user(task->thread.spefscr, &data[34]))
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return -EFAULT;
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/* copy SPE registers EVR[0] .. EVR[31] */
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for (i = 0; i < 32; i++, data++)
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if (__get_user(task->thread.evr[i], data))
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return -EFAULT;
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/* copy ACC */
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if (__get_user64(task->thread.acc, (unsigned long long*)data))
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return -EFAULT;
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return 0;
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}
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#endif /* CONFIG_SPE */
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static void set_single_step(struct task_struct *task)
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{
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struct pt_regs *regs = task->thread.regs;
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if (regs != NULL) {
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#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
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task->thread.dbcr0 = DBCR0_IDM | DBCR0_IC;
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regs->msr |= MSR_DE;
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#else
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regs->msr |= MSR_SE;
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#endif
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}
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set_tsk_thread_flag(task, TIF_SINGLESTEP);
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}
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static void clear_single_step(struct task_struct *task)
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{
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struct pt_regs *regs = task->thread.regs;
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if (regs != NULL) {
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#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
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task->thread.dbcr0 = 0;
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regs->msr &= ~MSR_DE;
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#else
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regs->msr &= ~MSR_SE;
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#endif
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}
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clear_tsk_thread_flag(task, TIF_SINGLESTEP);
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}
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/*
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* Called by kernel/ptrace.c when detaching..
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*
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@ -154,7 +375,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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CHECK_FULL_REGS(child->thread.regs);
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#endif
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if (index < PT_FPR0) {
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tmp = get_reg(child, (int) index);
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tmp = ptrace_get_reg(child, (int) index);
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} else {
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flush_fp_to_thread(child);
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tmp = ((unsigned long *)child->thread.fpr)[index - PT_FPR0];
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@ -195,7 +416,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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if (index == PT_ORIG_R3)
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break;
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if (index < PT_FPR0) {
|
||||
ret = put_reg(child, index, data);
|
||||
ret = ptrace_put_reg(child, index, data);
|
||||
} else {
|
||||
flush_fp_to_thread(child);
|
||||
((unsigned long *)child->thread.fpr)[index - PT_FPR0] = data;
|
||||
|
|
@ -282,7 +503,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
|
|||
}
|
||||
ret = 0;
|
||||
for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
|
||||
ret |= __put_user(get_reg(child, ui),
|
||||
ret |= __put_user(ptrace_get_reg(child, ui),
|
||||
(unsigned long __user *) data);
|
||||
data += sizeof(long);
|
||||
}
|
||||
|
|
@ -305,7 +526,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
|
|||
ret = __get_user(tmp, (unsigned long __user *) data);
|
||||
if (ret)
|
||||
break;
|
||||
put_reg(child, ui, tmp);
|
||||
ptrace_put_reg(child, ui, tmp);
|
||||
data += sizeof(long);
|
||||
}
|
||||
break;
|
||||
|
|
|
|||
|
|
@ -34,7 +34,6 @@
|
|||
#include <asm/system.h>
|
||||
|
||||
#include "ptrace-ppc64.h"
|
||||
#include "ptrace-common.h"
|
||||
|
||||
/*
|
||||
* does not yet catch signals sent when the child dies.
|
||||
|
|
@ -168,7 +167,7 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
|
|||
break;
|
||||
|
||||
if (index < PT_FPR0) {
|
||||
tmp = get_reg(child, index);
|
||||
tmp = ptrace_get_reg(child, index);
|
||||
} else {
|
||||
flush_fp_to_thread(child);
|
||||
/*
|
||||
|
|
@ -215,7 +214,7 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
|
|||
flush_fp_to_thread(child);
|
||||
tmp = ((unsigned long int *)child->thread.fpr)[numReg - PT_FPR0];
|
||||
} else { /* register within PT_REGS struct */
|
||||
tmp = get_reg(child, numReg);
|
||||
tmp = ptrace_get_reg(child, numReg);
|
||||
}
|
||||
reg32bits = ((u32*)&tmp)[part];
|
||||
ret = put_user(reg32bits, (u32 __user *)data);
|
||||
|
|
@ -274,7 +273,7 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
|
|||
if (index == PT_ORIG_R3)
|
||||
break;
|
||||
if (index < PT_FPR0) {
|
||||
ret = put_reg(child, index, data);
|
||||
ret = ptrace_put_reg(child, index, data);
|
||||
} else {
|
||||
flush_fp_to_thread(child);
|
||||
/*
|
||||
|
|
@ -346,7 +345,7 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
|
|||
}
|
||||
ret = 0;
|
||||
for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
|
||||
ret |= __put_user(get_reg(child, ui),
|
||||
ret |= __put_user(ptrace_get_reg(child, ui),
|
||||
(unsigned int __user *) data);
|
||||
data += sizeof(int);
|
||||
}
|
||||
|
|
@ -366,7 +365,7 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
|
|||
ret = __get_user(tmp, (unsigned int __user *) data);
|
||||
if (ret)
|
||||
break;
|
||||
put_reg(child, ui, tmp);
|
||||
ptrace_put_reg(child, ui, tmp);
|
||||
data += sizeof(int);
|
||||
}
|
||||
break;
|
||||
|
|
|
|||
|
|
@ -92,6 +92,11 @@ extern unsigned long profile_pc(struct pt_regs *regs);
|
|||
set_thread_flag(TIF_NOERROR); \
|
||||
} while(0)
|
||||
|
||||
struct task_struct;
|
||||
extern unsigned long ptrace_get_reg(struct task_struct *task, int regno);
|
||||
extern int ptrace_put_reg(struct task_struct *task, int regno,
|
||||
unsigned long data);
|
||||
|
||||
/*
|
||||
* We use the least-significant bit of the trap field to indicate
|
||||
* whether we have saved the full set of registers, or only a
|
||||
|
|
|
|||
Loading…
Reference in a new issue