343 lines
8.2 KiB
C
343 lines
8.2 KiB
C
/* $NetBSD: irix_exec.c,v 1.16 2002/06/02 19:06:02 manu Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Emmanuel Dreyfus.
|
|
*
|
|
* 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. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
* 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/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: irix_exec.c,v 1.16 2002/06/02 19:06:02 manu Exp $");
|
|
|
|
#ifndef ELFSIZE
|
|
#define ELFSIZE 32 /* XXX should die */
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/exec.h>
|
|
#include <sys/exec_elf.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <uvm/uvm_extern.h>
|
|
|
|
#include <machine/regnum.h>
|
|
|
|
#include <compat/common/compat_util.h>
|
|
|
|
#include <compat/irix/irix_syscall.h>
|
|
#include <compat/irix/irix_types.h>
|
|
#include <compat/irix/irix_exec.h>
|
|
#include <compat/irix/irix_signal.h>
|
|
#include <compat/irix/irix_errno.h>
|
|
|
|
extern const int native_to_svr4_signo[];
|
|
|
|
static void setregs_n32 __P((struct proc *, struct exec_package *, u_long));
|
|
static void irix_e_proc_exec __P((struct proc *, struct exec_package *));
|
|
static void irix_e_proc_fork __P((struct proc *, struct proc *));
|
|
static void irix_e_proc_exit __P((struct proc *));
|
|
static void irix_e_proc_init __P((struct proc *, struct vmspace *));
|
|
|
|
extern struct sysent irix_sysent[];
|
|
extern const char * const irix_syscallnames[];
|
|
|
|
#ifndef __HAVE_SYSCALL_INTERN
|
|
void irix_syscall __P((void));
|
|
#else
|
|
void irix_syscall_intern __P((struct proc *));
|
|
#endif
|
|
|
|
const struct emul emul_irix_o32 = {
|
|
"irix o32",
|
|
"/emul/irix",
|
|
#ifndef __HAVE_MINIMAL_EMUL
|
|
0,
|
|
native_to_irix_errno,
|
|
IRIX_SYS_syscall,
|
|
IRIX_SYS_MAXSYSCALL,
|
|
#endif
|
|
irix_sysent,
|
|
#ifdef SYSCALL_DEBUG
|
|
irix_syscallnames,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
irix_sendsig,
|
|
trapsignal,
|
|
NULL,
|
|
NULL,
|
|
setregs,
|
|
irix_e_proc_exec,
|
|
irix_e_proc_fork,
|
|
irix_e_proc_exit,
|
|
#ifdef __HAVE_SYSCALL_INTERN
|
|
irix_syscall_intern,
|
|
#else
|
|
irix_syscall,
|
|
#endif
|
|
};
|
|
|
|
const struct emul emul_irix_n32 = {
|
|
"irix n32",
|
|
"/emul/irix",
|
|
#ifndef __HAVE_MINIMAL_EMUL
|
|
0,
|
|
native_to_irix_errno,
|
|
IRIX_SYS_syscall,
|
|
IRIX_SYS_MAXSYSCALL,
|
|
#endif
|
|
irix_sysent,
|
|
#ifdef SYSCALL_DEBUG
|
|
irix_syscallnames,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
irix_sendsig,
|
|
trapsignal,
|
|
NULL,
|
|
NULL,
|
|
setregs_n32,
|
|
irix_e_proc_exec,
|
|
irix_e_proc_fork,
|
|
irix_e_proc_exit,
|
|
#ifdef __HAVE_SYSCALL_INTERN
|
|
irix_syscall_intern,
|
|
#else
|
|
irix_syscall,
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* IRIX o32 ABI probe function
|
|
*/
|
|
int
|
|
ELFNAME2(irix,probe_o32)(p, epp, eh, itp, pos)
|
|
struct proc *p;
|
|
struct exec_package *epp;
|
|
void *eh;
|
|
char *itp;
|
|
vaddr_t *pos;
|
|
{
|
|
const char *bp;
|
|
int error;
|
|
size_t len;
|
|
|
|
#ifdef DEBUG_IRIX
|
|
printf("irix_probe_o32()\n");
|
|
#endif
|
|
if ((((Elf_Ehdr *)epp->ep_hdr)->e_flags & IRIX_EF_IRIX_ABI_MASK) !=
|
|
IRIX_EF_IRIX_ABIO32)
|
|
return error;
|
|
|
|
if (itp[0]) {
|
|
/* o32 binaries use /lib/libc.so.1 */
|
|
if (strncmp(itp, "/lib/libc.so", 12) &&
|
|
strncmp(itp, "/usr/lib/libc.so", 16))
|
|
return ENOEXEC;
|
|
if ((error = emul_find(p, NULL, epp->ep_esch->es_emul->e_path,
|
|
itp, &bp, 0)))
|
|
return error;
|
|
if ((error = copystr(bp, itp, MAXPATHLEN, &len)))
|
|
return error;
|
|
free((void *)bp, M_TEMP);
|
|
}
|
|
*pos = ELF_NO_ADDR;
|
|
#ifdef DEBUG_IRIX
|
|
printf("irix_probe_o32: returning 0\n");
|
|
printf("epp->ep_vm_minaddr = 0x%lx\n", epp->ep_vm_minaddr);
|
|
#endif
|
|
epp->ep_vm_minaddr = epp->ep_vm_minaddr & ~0xfUL;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* IRIX n32 ABI probe function
|
|
*/
|
|
int
|
|
ELFNAME2(irix,probe_n32)(p, epp, eh, itp, pos)
|
|
struct proc *p;
|
|
struct exec_package *epp;
|
|
void *eh;
|
|
char *itp;
|
|
vaddr_t *pos;
|
|
{
|
|
const char *bp;
|
|
int error;
|
|
size_t len;
|
|
|
|
#ifdef DEBUG_IRIX
|
|
printf("irix_probe_n32()\n");
|
|
#endif
|
|
if ((((Elf_Ehdr *)epp->ep_hdr)->e_flags & IRIX_EF_IRIX_ABI_MASK) !=
|
|
IRIX_EF_IRIX_ABIN32)
|
|
return error;
|
|
|
|
if (itp[0]) {
|
|
/* n32 binaries use /lib32/libc.so.1 */
|
|
if (strncmp(itp, "/lib32/libc.so", 14) &&
|
|
strncmp(itp, "/usr/lib32/libc.so", 18))
|
|
return ENOEXEC;
|
|
if ((error = emul_find(p, NULL, epp->ep_esch->es_emul->e_path,
|
|
itp, &bp, 0)))
|
|
return error;
|
|
if ((error = copystr(bp, itp, MAXPATHLEN, &len)))
|
|
return error;
|
|
free((void *)bp, M_TEMP);
|
|
}
|
|
*pos = ELF_NO_ADDR;
|
|
#ifdef DEBUG_IRIX
|
|
printf("irix_probe_n32: returning 0\n");
|
|
printf("epp->ep_vm_minaddr = 0x%lx\n", epp->ep_vm_minaddr);
|
|
#endif
|
|
epp->ep_vm_minaddr = epp->ep_vm_minaddr & ~0xfUL;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* set registers on exec for N32 applications
|
|
*/
|
|
void
|
|
setregs_n32(p, pack, stack)
|
|
struct proc *p;
|
|
struct exec_package *pack;
|
|
u_long stack;
|
|
{
|
|
struct frame *f = (struct frame *)p->p_md.md_regs;
|
|
|
|
/* Use regular setregs */
|
|
setregs(p, pack, stack);
|
|
|
|
/* Enable 64 bit instructions (eg: sd) */
|
|
f->f_regs[SR] |= MIPS3_SR_UX;
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* per-process emuldata allocation
|
|
*/
|
|
static void
|
|
irix_e_proc_init(p, vmspace)
|
|
struct proc *p;
|
|
struct vmspace *vmspace;
|
|
{
|
|
if (!p->p_emuldata)
|
|
MALLOC(p->p_emuldata, void *, sizeof(struct irix_emuldata),
|
|
M_EMULDATA, M_WAITOK | M_ZERO);
|
|
}
|
|
|
|
/*
|
|
* exec() hook used to allocate per process structures
|
|
*/
|
|
static void
|
|
irix_e_proc_exec(p, epp)
|
|
struct proc *p;
|
|
struct exec_package *epp;
|
|
{
|
|
int error;
|
|
struct exec_vmcmd evc;
|
|
|
|
irix_e_proc_init(p, p->p_vmspace);
|
|
|
|
/*
|
|
* On IRIX, usinit(3) expects the kernel to prepare one page of
|
|
* memory mapped at address 0x200000. It is used for shared
|
|
* semaphores and locks.
|
|
*/
|
|
bzero(&evc, sizeof(evc));
|
|
evc.ev_addr = IRIX_SH_ARENA_ADDR;
|
|
evc.ev_len = IRIX_SH_ARENA_SZ;
|
|
evc.ev_prot = UVM_PROT_RW;
|
|
evc.ev_proc = *vmcmd_map_zero;
|
|
|
|
error = (*evc.ev_proc)(p, &evc);
|
|
#ifdef DEBUG_IRIX
|
|
printf("irix_e_proc_init(): uvm_map() returned %d\n", error);
|
|
if (error != 0)
|
|
printf("irix_e_proc_init(): IRIX_SHARED_ARENA map failed ");
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* exit() hook used to free per process data structures
|
|
*/
|
|
static void
|
|
irix_e_proc_exit(p)
|
|
struct proc *p;
|
|
{
|
|
struct proc *pp;
|
|
struct irix_emuldata *ied;
|
|
|
|
LIST_FOREACH(pp, &allproc, p_list) {
|
|
/*
|
|
* Select IRIX processes.
|
|
* XXX not nice, but we need to do this
|
|
* before we reference p_emuldata.
|
|
*/
|
|
if (pp->p_emul != &emul_irix_o32 &&
|
|
pp->p_emul != &emul_irix_n32)
|
|
continue;
|
|
|
|
ied = (struct irix_emuldata *)(pp->p_emuldata);
|
|
if (ied->ied_pptr == p)
|
|
psignal(pp, native_to_svr4_signo[SIGHUP]);
|
|
}
|
|
|
|
FREE(p->p_emuldata, M_EMULDATA);
|
|
p->p_emuldata = NULL;
|
|
}
|
|
|
|
/*
|
|
* fork() hook used to allocate per process structures
|
|
*/
|
|
static void
|
|
irix_e_proc_fork(p, parent)
|
|
struct proc *p, *parent;
|
|
{
|
|
struct irix_emuldata *ied1;
|
|
struct irix_emuldata *ied2;
|
|
|
|
p->p_emuldata = NULL;
|
|
|
|
/* Use parent's vmspace because our vmspace may not be setup yet */
|
|
irix_e_proc_init(p, parent->p_vmspace);
|
|
|
|
ied1 = p->p_emuldata;
|
|
ied2 = parent->p_emuldata;
|
|
|
|
(void) memcpy(ied1, ied2, (unsigned)
|
|
((caddr_t)&ied1->ied_endcopy - (caddr_t)&ied1->ied_startcopy));
|
|
}
|