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Add compat6 wrapper code for mmap/lseek/pread/pwrite/truncate/ftruncate.

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Approved by:  re (kensmith)
This commit is contained in:
Peter Wemm 2007-07-04 23:04:41 +00:00
parent 486abf939c
commit 5aa69f9c72
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=171215
1 changed files with 83 additions and 0 deletions
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83
sys/compat/freebsd32/freebsd32_misc.c
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@ -475,6 +475,24 @@ freebsd32_mmap(struct thread *td, struct freebsd32_mmap_args *uap)
return (mmap(td, &ap));
}
#ifdef COMPAT_FREEBSD6
int
freebsd6_freebsd32_mmap(struct thread *td, struct freebsd6_freebsd32_mmap_args *uap)
{
struct freebsd32_mmap_args ap;
ap.addr = uap->addr;
ap.len = uap->len;
ap.prot = uap->prot;
ap.flags = uap->flags;
ap.fd = uap->fd;
ap.poslo = uap->poslo;
ap.poshi = uap->poshi;
return (freebsd32_mmap(td, &ap));
}
#endif
struct itimerval32 {
struct timeval32 it_interval;
struct timeval32 it_value;
@ -1616,6 +1634,71 @@ freebsd32_ftruncate(struct thread *td, struct freebsd32_ftruncate_args *uap)
return (ftruncate(td, &ap));
}
#ifdef COMPAT_FREEBSD6
/* versions with the 'int pad' argument */
int
freebsd6_freebsd32_pread(struct thread *td, struct freebsd6_freebsd32_pread_args *uap)
{
struct pread_args ap;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.nbyte = uap->nbyte;
ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32));
return (pread(td, &ap));
}
int
freebsd6_freebsd32_pwrite(struct thread *td, struct freebsd6_freebsd32_pwrite_args *uap)
{
struct pwrite_args ap;
ap.fd = uap->fd;
ap.buf = uap->buf;
ap.nbyte = uap->nbyte;
ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32));
return (pwrite(td, &ap));
}
int
freebsd6_freebsd32_lseek(struct thread *td, struct freebsd6_freebsd32_lseek_args *uap)
{
int error;
struct lseek_args ap;
off_t pos;
ap.fd = uap->fd;
ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32));
ap.whence = uap->whence;
error = lseek(td, &ap);
/* Expand the quad return into two parts for eax and edx */
pos = *(off_t *)(td->td_retval);
td->td_retval[0] = pos & 0xffffffff; /* %eax */
td->td_retval[1] = pos >> 32; /* %edx */
return error;
}
int
freebsd6_freebsd32_truncate(struct thread *td, struct freebsd6_freebsd32_truncate_args *uap)
{
struct truncate_args ap;
ap.path = uap->path;
ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32));
return (truncate(td, &ap));
}
int
freebsd6_freebsd32_ftruncate(struct thread *td, struct freebsd6_freebsd32_ftruncate_args *uap)
{
struct ftruncate_args ap;
ap.fd = uap->fd;
ap.length = (uap->lengthlo | ((off_t)uap->lengthhi << 32));
return (ftruncate(td, &ap));
}
#endif /* COMPAT_FREEBSD6 */
struct sf_hdtr32 {
uint32_t headers;
int hdr_cnt;