leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[MIPS] Store sign-extend register values for PTRACE_GETREGS

Browse Source 
A comment on ptrace_getregs() states "Registers are sign extended to
fill the available space." but it is not true.  Fix code to match the
comment.  Also fix casts on each caller to get rid of some warnings.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto 2007-10-26 00:53:02 +09:00 committed by Ralf Baechle
parent 26c288f82c
commit 62b14c24b1
2 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
arch/mips/kernel/ptrace.c
View File

@ -65,13 +65,13 @@ int ptrace_getregs(struct task_struct *child, __s64 __user *data)
regs = task_pt_regs(child);
for (i = 0; i < 32; i++)
__put_user(regs->regs[i], data + i);
__put_user(regs->lo, data + EF_LO - EF_R0);
__put_user(regs->hi, data + EF_HI - EF_R0);
__put_user(regs->cp0_epc, data + EF_CP0_EPC - EF_R0);
__put_user(regs->cp0_badvaddr, data + EF_CP0_BADVADDR - EF_R0);
__put_user(regs->cp0_status, data + EF_CP0_STATUS - EF_R0);
__put_user(regs->cp0_cause, data + EF_CP0_CAUSE - EF_R0);
__put_user((long)regs->regs[i], data + i);
__put_user((long)regs->lo, data + EF_LO - EF_R0);
__put_user((long)regs->hi, data + EF_HI - EF_R0);
__put_user((long)regs->cp0_epc, data + EF_CP0_EPC - EF_R0);
__put_user((long)regs->cp0_badvaddr, data + EF_CP0_BADVADDR - EF_R0);
__put_user((long)regs->cp0_status, data + EF_CP0_STATUS - EF_R0);
__put_user((long)regs->cp0_cause, data + EF_CP0_CAUSE - EF_R0);
return 0;
}
@ -390,11 +390,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
}
case PTRACE_GETREGS:
ret = ptrace_getregs(child, (__u64 __user *) data);
ret = ptrace_getregs(child, (__s64 __user *) data);
break;
case PTRACE_SETREGS:
ret = ptrace_setregs(child, (__u64 __user *) data);
ret = ptrace_setregs(child, (__s64 __user *) data);
break;
case PTRACE_GETFPREGS:

4
arch/mips/kernel/ptrace32.c
View File

@ -346,11 +346,11 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
}
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: