File: [local] / sys / compat / aout / compat_aout.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:09:05 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: compat_aout.c,v 1.2 2003/08/23 19:28:53 tedu Exp $ */
/*
* Copyright (c) 2003 Marc Espie
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <sys/param.h>
#include <sys/syscall.h>
#include <sys/signalvar.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <sys/fcntl.h>
#include <compat/common/compat_util.h>
void aout_compat_setup(struct exec_package *epp);
extern char sigcode[], esigcode[];
struct sysent aout_sysent[SYS_MAXSYSCALL];
struct emul emul_aout = {
"aout",
NULL,
sendsig,
SYS_syscall,
SYS_MAXSYSCALL,
NULL,
#ifdef SYSCALL_DEBUG
syscallnames,
#else
NULL,
#endif
0,
copyargs,
setregs,
NULL,
sigcode,
esigcode,
};
#ifdef syscallarg
#undef syscallarg
#endif
#define syscallarg(x) \
union { \
register_t pad; \
struct { x datum; } le; \
struct { \
int8_t pad[ (sizeof (register_t) < sizeof (x)) \
? 0 \
: sizeof (register_t) - sizeof (x)]; \
x datum; \
} be; \
}
struct aout_sys_open_args {
syscallarg(char *) path;
syscallarg(int) flags;
syscallarg(int) mode;
};
struct aout_sys_link_args {
syscallarg(char *) path;
syscallarg(char *) link;
};
struct aout_sys_unlink_args {
syscallarg(char *) path;
};
struct aout_sys_rename_args {
syscallarg(char *) from;
syscallarg(char *) to;
};
int aout_sys_open(struct proc *, void *, register_t *);
int aout_sys_link(struct proc *, void *, register_t *);
int aout_sys_unlink(struct proc *, void *, register_t *);
int aout_sys_rename(struct proc *, void *, register_t *);
const char aout_path[] = "/emul/a.out";
#define AOUT_CHECK_ALT_EXIST(p, sgp, path) \
CHECK_ALT_EXIST(p, sgp, aout_path, path)
#define AOUT_CHECK_ALT_CREAT(p, sgp, path) \
CHECK_ALT_CREAT(p, sgp, aout_path, path)
/* XXX We just translate enough calls to allow ldconfig and ld.so to work. */
void
aout_compat_setup(struct exec_package *epp)
{
if (emul_aout.e_sysent == NULL) {
memcpy(aout_sysent, sysent, sizeof aout_sysent);
aout_sysent[SYS_open].sy_call = aout_sys_open;
aout_sysent[SYS_link].sy_call = aout_sys_link;
aout_sysent[SYS_unlink].sy_call = aout_sys_unlink;
aout_sysent[SYS_rename].sy_call = aout_sys_rename;
emul_aout.e_sysent = aout_sysent;
}
epp->ep_emul = &emul_aout;
}
int
aout_sys_open(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct aout_sys_open_args /* {
syscallarg(char *) path;
syscallarg(int) flags;
syscallarg(int) mode;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
if (SCARG(uap, flags) & O_CREAT)
AOUT_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path));
else
AOUT_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_open(p, uap, retval);
}
int
aout_sys_link(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct aout_sys_link_args /* {
syscallarg(char *) path;
syscallarg(char *) link;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
AOUT_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
AOUT_CHECK_ALT_CREAT(p, &sg, SCARG(uap, link));
return sys_link(p, uap, retval);
}
int
aout_sys_unlink(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct aout_sys_unlink_args /* {
syscallarg(char *) path;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
AOUT_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_unlink(p, uap, retval);
}
int
aout_sys_rename(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct aout_sys_rename_args /* {
syscallarg(char *) from;
syscallarg(char *) to;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
AOUT_CHECK_ALT_EXIST(p, &sg, SCARG(uap, from));
AOUT_CHECK_ALT_CREAT(p, &sg, SCARG(uap, to));
return sys_rename(p, uap, retval);
}