It's only used by arch/powerpc/kernel/ptrace{,32}.c.
Signed-off-by: Paul Mackerras <paulus@samba.org>
--- /dev/null
+/*
+ * linux/arch/ppc64/kernel/ptrace-common.h
+ *
+ * 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_ti_thread_flag(task->thread_info, 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_ti_thread_flag(task->thread_info, 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 */
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
+
#ifdef CONFIG_PPC64
-#include <asm/ptrace-common.h>
+#include "ptrace-common.h"
#endif
#ifdef CONFIG_PPC32
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
-#include <asm/ptrace-common.h>
+
+#include "ptrace-common.h"
/*
* does not yet catch signals sent when the child dies.
+++ /dev/null
-/*
- * linux/arch/ppc64/kernel/ptrace-common.h
- *
- * 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_ti_thread_flag(task->thread_info, 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_ti_thread_flag(task->thread_info, 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 */
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff