diff options
| -rw-r--r-- | arch/powerpc/kernel/ptrace-ppc32.h | 35 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace-ppc64.h | 51 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 45 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace32.c | 2 |
4 files changed, 39 insertions, 94 deletions
diff --git a/arch/powerpc/kernel/ptrace-ppc32.h b/arch/powerpc/kernel/ptrace-ppc32.h deleted file mode 100644 index f1fd5b8a868..00000000000 --- a/arch/powerpc/kernel/ptrace-ppc32.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Copyright (c) 2007 Benjamin Herrenschmidt, 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 _POWERPC_PTRACE_PPC32_H -#define _POWERPC_PTRACE_PPC32_H - -/* - * Set of msr bits that gdb can change on behalf of a process. - */ -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) -#define MSR_DEBUGCHANGE 0 -#else -#define MSR_DEBUGCHANGE (MSR_SE | MSR_BE) -#endif - -/* - * Max register writeable via put_reg - */ -#define PT_MAX_PUT_REG PT_MQ - -/* - * Munging of MSR on return from get_regs - * - * Nothing to do on ppc32 - */ -#define PT_MUNGE_MSR(msr, task) (msr) - - -#endif /* _POWERPC_PTRACE_PPC32_H */ diff --git a/arch/powerpc/kernel/ptrace-ppc64.h b/arch/powerpc/kernel/ptrace-ppc64.h deleted file mode 100644 index e450ce01392..00000000000 --- a/arch/powerpc/kernel/ptrace-ppc64.h +++ /dev/null @@ -1,51 +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 _POWERPC_PTRACE_PPC64_H -#define _POWERPC_PTRACE_PPC64_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) - -/* - * Max register writeable via put_reg - */ -#define PT_MAX_PUT_REG PT_CCR - -/* - * Munging of MSR on return from get_regs - * - * Put the correct FP bits in, they might be wrong as a result - * of our lazy FP restore. - */ - -#define PT_MUNGE_MSR(msr, task) ({ (msr) | (task)->thread.fpexc_mode; }) - -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 /* _POWERPC_PTRACE_PPC64_H */ diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index dd4837c4a68..75bc744a621 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -35,16 +35,28 @@ #include <asm/pgtable.h> #include <asm/system.h> -#ifdef CONFIG_PPC64 -#include "ptrace-ppc64.h" +/* + * does not yet catch signals sent when the child dies. + * in exit.c or in signal.c. + */ + +/* + * Set of msr bits that gdb can change on behalf of a process. + */ +#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#define MSR_DEBUGCHANGE 0 #else -#include "ptrace-ppc32.h" +#define MSR_DEBUGCHANGE (MSR_SE | MSR_BE) #endif /* - * does not yet catch signals sent when the child dies. - * in exit.c or in signal.c. + * Max register writeable via put_reg */ +#ifdef CONFIG_PPC32 +#define PT_MAX_PUT_REG PT_MQ +#else +#define PT_MAX_PUT_REG PT_CCR +#endif /* * Get contents of register REGNO in task TASK. @@ -58,7 +70,7 @@ unsigned long ptrace_get_reg(struct task_struct *task, int regno) if (regno == PT_MSR) { tmp = ((unsigned long *)task->thread.regs)[PT_MSR]; - return PT_MUNGE_MSR(tmp, task); + return tmp | task->thread.fpexc_mode; } if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long))) @@ -274,6 +286,27 @@ static void clear_single_step(struct task_struct *task) clear_tsk_thread_flag(task, TIF_SINGLESTEP); } +#ifdef CONFIG_PPC64 +static 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 + /* * Called by kernel/ptrace.c when detaching.. * diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c index aae6a988e18..9e6baeac0fb 100644 --- a/arch/powerpc/kernel/ptrace32.c +++ b/arch/powerpc/kernel/ptrace32.c @@ -33,8 +33,6 @@ #include <asm/pgtable.h> #include <asm/system.h> -#include "ptrace-ppc64.h" - /* * does not yet catch signals sent when the child dies. * in exit.c or in signal.c. |