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Fix ptrace(PT_READ_*, ...) for non-little-endian architectures where

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sizeof(register_t) != sizeof(int).
This commit is contained in:
Thomas Moestl 2002-07-12 16:48:05 +00:00
parent a935ed4fae
commit 5c85966098
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=99880
1 changed files with 5 additions and 3 deletions
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8
sys/kern/sys_process.c
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@ -334,7 +334,7 @@ ptrace(struct thread *td, struct ptrace_args *uap)
} r;
struct proc *curp, *p, *pp;
struct thread *td2;
int error, write;
int error, write, tmp;
int proctree_locked = 0;
curp = td->td_proc;
@ -586,9 +586,9 @@ ptrace(struct thread *td, struct ptrace_args *uap)
case PT_READ_I:
case PT_READ_D:
PROC_UNLOCK(p);
tmp = 0;
/* write = 0 set above */
iov.iov_base = write ? (caddr_t)&uap->data :
(caddr_t)td->td_retval;
iov.iov_base = write ? (caddr_t)&uap->data : (caddr_t)&tmp;
iov.iov_len = sizeof(int);
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
@ -611,6 +611,8 @@ ptrace(struct thread *td, struct ptrace_args *uap)
if (error == 0 || error == ENOSPC || error == EPERM)
error = EINVAL; /* EOF */
}
if (!write)
td->td_retval[0] = tmp;
return (error);
case PT_IO: