* binaries.
*/
#include <linux/compiler.h>
+#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/smp.h>
-#include <linux/smp_lock.h>
#include <linux/user.h>
#include <linux/security.h>
#include <asm/uaccess.h>
#include <asm/bootinfo.h>
-int ptrace_getregs (struct task_struct *child, __s64 __user *data);
-int ptrace_setregs (struct task_struct *child, __s64 __user *data);
-
-int ptrace_getfpregs (struct task_struct *child, __u32 __user *data);
-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. */
- case PTRACE_PEEKDATA: {
- unsigned int tmp;
- int copied;
-
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
- ret = -EIO;
- if (copied != sizeof(tmp))
- break;
- ret = put_user(tmp, (unsigned int __user *) (unsigned long) data);
- break;
- }
/*
* Read 4 bytes of the other process' storage
tmp = regs->lo;
break;
case FPC_CSR:
- if (cpu_has_fpu)
- tmp = child->thread.fpu.hard.fcr31;
- else
- tmp = child->thread.fpu.soft.fcr31;
+ tmp = child->thread.fpu.fcr31;
break;
case FPC_EIR: { /* implementation / version register */
unsigned int flags;
unsigned int mtflags;
#endif /* CONFIG_MIPS_MT_SMTC */
+ preempt_disable();
if (!cpu_has_fpu) {
+ preempt_enable();
tmp = 0;
break;
}
mtflags = dmt();
#endif /* CONFIG_MIPS_MT_SMTC */
- preempt_disable();
if (cpu_has_mipsmt) {
unsigned int vpflags = dvpe();
flags = read_c0_status();
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]);
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;
}
- /* when I and D space are separate, this will have to be fixed. */
- case PTRACE_POKETEXT: /* write the word at location addr. */
- case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1)
- == sizeof(data))
- break;
- ret = -EIO;
- break;
-
/*
* Write 4 bytes into the other process' storage
* data is the 4 bytes that the user wants written
if (!tsk_used_math(child)) {
/* FP not yet used */
- memset(&child->thread.fpu.hard, ~0,
- sizeof(child->thread.fpu.hard));
- child->thread.fpu.hard.fcr31 = 0;
+ memset(&child->thread.fpu, ~0,
+ sizeof(child->thread.fpu));
+ child->thread.fpu.fcr31 = 0;
}
/*
* The odd registers are actually the high order bits
regs->lo = data;
break;
case FPC_CSR:
- if (cpu_has_fpu)
- child->thread.fpu.hard.fcr31 = data;
- else
- child->thread.fpu.soft.fcr31 = data;
+ child->thread.fpu.fcr31 = data;
break;
case DSP_BASE ... DSP_BASE + 5: {
dspreg_t *dregs;
}
case PTRACE_GETREGS:
- ret = ptrace_getregs (child, (__u64 __user *) (__u64) data);
+ ret = ptrace_getregs(child, (__s64 __user *) (__u64) data);
break;
case PTRACE_SETREGS:
- ret = ptrace_setregs (child, (__u64 __user *) (__u64) data);
+ ret = ptrace_setregs(child, (__s64 __user *) (__u64) data);
break;
case PTRACE_GETFPREGS:
- ret = ptrace_getfpregs (child, (__u32 __user *) (__u64) data);
+ ret = ptrace_getfpregs(child, (__u32 __user *) (__u64) data);
break;
case PTRACE_SETFPREGS:
- ret = ptrace_setfpregs (child, (__u32 __user *) (__u64) data);
- break;
-
- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
- case PTRACE_CONT: { /* restart after signal. */
- ret = -EIO;
- if (!valid_signal(data))
- break;
- if (request == PTRACE_SYSCALL) {
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
- else {
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
- child->exit_code = data;
- wake_up_process(child);
- ret = 0;
- break;
- }
-
- /*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL:
- ret = 0;
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- wake_up_process(child);
+ ret = ptrace_setfpregs(child, (__u32 __user *) (__u64) data);
break;
case PTRACE_GET_THREAD_AREA:
(unsigned int __user *) (unsigned long) data);
break;
- case PTRACE_DETACH: /* detach a process that was attached. */
- ret = ptrace_detach(child, data);
+ case PTRACE_GET_THREAD_AREA_3264:
+ ret = put_user(task_thread_info(child)->tp_value,
+ (unsigned long __user *) (unsigned long) data);
break;
- case PTRACE_GETEVENTMSG:
- ret = put_user(child->ptrace_message,
- (unsigned int __user *) (unsigned long) data);
+ case PTRACE_GET_WATCH_REGS:
+ ret = ptrace_get_watch_regs(child,
+ (struct pt_watch_regs __user *) (unsigned long) addr);
break;
- case PTRACE_GET_THREAD_AREA_3264:
- ret = put_user(task_thread_info(child)->tp_value,
- (unsigned long __user *) (unsigned long) data);
+ case PTRACE_SET_WATCH_REGS:
+ ret = ptrace_set_watch_regs(child,
+ (struct pt_watch_regs __user *) (unsigned long) addr);
break;
default:
- ret = ptrace_request(child, request, addr, data);
+ ret = compat_ptrace_request(child, request, addr, data);
break;
}
-
-out_tsk:
- put_task_struct(child);
out:
- unlock_kernel();
return ret;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff