diff options
Diffstat (limited to 'arch/mips/kernel/ptrace32.c')
| -rw-r--r-- | arch/mips/kernel/ptrace32.c | 43 |
1 files changed, 8 insertions, 35 deletions
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c index 76818be6ba7..cac56a8c867 100644 --- a/arch/mips/kernel/ptrace32.c +++ b/arch/mips/kernel/ptrace32.c @@ -15,6 +15,7 @@ * binaries. */ #include <linux/compiler.h> +#include <linux/compat.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> @@ -46,37 +47,13 @@ int ptrace_setfpregs(struct task_struct *child, __u32 __user *data); * Tracing a 32-bit process with a 64-bit strace and vice versa will not * work. I don't know how to fix this. */ -asmlinkage int sys32_ptrace(int request, int pid, int addr, int data) +long compat_arch_ptrace(struct task_struct *child, compat_long_t request, + compat_ulong_t caddr, compat_ulong_t cdata) { - struct task_struct *child; + int addr = caddr; + int data = cdata; int ret; -#if 0 - printk("ptrace(r=%d,pid=%d,addr=%08lx,data=%08lx)\n", - (int) request, (int) pid, (unsigned long) addr, - (unsigned long) data); -#endif - lock_kernel(); - if (request == PTRACE_TRACEME) { - ret = ptrace_traceme(); - goto out; - } - - child = ptrace_get_task_struct(pid); - if (IS_ERR(child)) { - ret = PTR_ERR(child); - goto out; - } - - if (request == PTRACE_ATTACH) { - ret = ptrace_attach(child); - goto out_tsk; - } - - ret = ptrace_check_attach(child, request == PTRACE_KILL); - if (ret < 0) - goto out_tsk; - switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ @@ -214,7 +191,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data) if (!cpu_has_dsp) { tmp = 0; ret = -EIO; - goto out_tsk; + goto out; } dregs = __get_dsp_regs(child); tmp = (unsigned long) (dregs[addr - DSP_BASE]); @@ -224,14 +201,14 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data) if (!cpu_has_dsp) { tmp = 0; ret = -EIO; - goto out_tsk; + goto out; } tmp = child->thread.dsp.dspcontrol; break; default: tmp = 0; ret = -EIO; - goto out_tsk; + goto out; } ret = put_user(tmp, (unsigned __user *) (unsigned long) data); break; @@ -414,10 +391,6 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data) ret = ptrace_request(child, request, addr, data); break; } - -out_tsk: - put_task_struct(child); out: - unlock_kernel(); return ret; } |