diff options
Diffstat (limited to 'arch/m68k/kernel')
| -rw-r--r-- | arch/m68k/kernel/asm-offsets.c | 12 | ||||
| -rw-r--r-- | arch/m68k/kernel/ptrace.c | 51 |
2 files changed, 26 insertions, 37 deletions
diff --git a/arch/m68k/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets.c index 73e5e581245b..78e59b82ebc3 100644 --- a/arch/m68k/kernel/asm-offsets.c +++ b/arch/m68k/kernel/asm-offsets.c @@ -22,13 +22,9 @@ int main(void) { /* offsets into the task struct */ - DEFINE(TASK_STATE, offsetof(struct task_struct, state)); - DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags)); - DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace)); DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info)); DEFINE(TASK_MM, offsetof(struct task_struct, mm)); - DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); #ifdef CONFIG_MMU DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info)); #endif @@ -64,14 +60,6 @@ int main(void) /* bitfields are a bit difficult */ DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); - /* offsets into the irq_handler struct */ - DEFINE(IRQ_HANDLER, offsetof(struct irq_node, handler)); - DEFINE(IRQ_DEVID, offsetof(struct irq_node, dev_id)); - DEFINE(IRQ_NEXT, offsetof(struct irq_node, next)); - - /* offsets into the kernel_stat struct */ - DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs)); - /* offsets into the irq_cpustat_t struct */ DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index 616e59752c29..0b252683cefb 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c @@ -156,55 +156,57 @@ void user_disable_single_step(struct task_struct *child) singlestep_disable(child); } -long arch_ptrace(struct task_struct *child, long request, long addr, long data) +long arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) { unsigned long tmp; int i, ret = 0; + int regno = addr >> 2; /* temporary hack. */ + unsigned long __user *datap = (unsigned long __user *) data; switch (request) { /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: if (addr & 3) goto out_eio; - addr >>= 2; /* temporary hack. */ - if (addr >= 0 && addr < 19) { - tmp = get_reg(child, addr); - } else if (addr >= 21 && addr < 49) { - tmp = child->thread.fp[addr - 21]; + if (regno >= 0 && regno < 19) { + tmp = get_reg(child, regno); + } else if (regno >= 21 && regno < 49) { + tmp = child->thread.fp[regno - 21]; /* Convert internal fpu reg representation * into long double format */ - if (FPU_IS_EMU && (addr < 45) && !(addr % 3)) + if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) tmp = ((tmp & 0xffff0000) << 15) | ((tmp & 0x0000ffff) << 16); } else goto out_eio; - ret = put_user(tmp, (unsigned long *)data); + ret = put_user(tmp, datap); break; - case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ + case PTRACE_POKEUSR: + /* write the word at location addr in the USER area */ if (addr & 3) goto out_eio; - addr >>= 2; /* temporary hack. */ - if (addr == PT_SR) { + if (regno == PT_SR) { data &= SR_MASK; data |= get_reg(child, PT_SR) & ~SR_MASK; } - if (addr >= 0 && addr < 19) { - if (put_reg(child, addr, data)) + if (regno >= 0 && regno < 19) { + if (put_reg(child, regno, data)) goto out_eio; - } else if (addr >= 21 && addr < 48) { + } else if (regno >= 21 && regno < 48) { /* Convert long double format * into internal fpu reg representation */ - if (FPU_IS_EMU && (addr < 45) && !(addr % 3)) { - data = (unsigned long)data << 15; + if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) { + data <<= 15; data = (data & 0xffff0000) | ((data & 0x0000ffff) >> 1); } - child->thread.fp[addr - 21] = data; + child->thread.fp[regno - 21] = data; } else goto out_eio; break; @@ -212,16 +214,16 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) case PTRACE_GETREGS: /* Get all gp regs from the child. */ for (i = 0; i < 19; i++) { tmp = get_reg(child, i); - ret = put_user(tmp, (unsigned long *)data); + ret = put_user(tmp, datap); if (ret) break; - data += sizeof(long); + datap++; } break; case PTRACE_SETREGS: /* Set all gp regs in the child. */ for (i = 0; i < 19; i++) { - ret = get_user(tmp, (unsigned long *)data); + ret = get_user(tmp, datap); if (ret) break; if (i == PT_SR) { @@ -229,25 +231,24 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) tmp |= get_reg(child, PT_SR) & ~SR_MASK; } put_reg(child, i, tmp); - data += sizeof(long); + datap++; } break; case PTRACE_GETFPREGS: /* Get the child FPU state. */ - if (copy_to_user((void *)data, &child->thread.fp, + if (copy_to_user(datap, &child->thread.fp, sizeof(struct user_m68kfp_struct))) ret = -EFAULT; break; case PTRACE_SETFPREGS: /* Set the child FPU state. */ - if (copy_from_user(&child->thread.fp, (void *)data, + if (copy_from_user(&child->thread.fp, datap, sizeof(struct user_m68kfp_struct))) ret = -EFAULT; break; case PTRACE_GET_THREAD_AREA: - ret = put_user(task_thread_info(child)->tp_value, - (unsigned long __user *)data); + ret = put_user(task_thread_info(child)->tp_value, datap); break; default: |