[src/trunk]: src/sys/compat/sunos put aout specific sunos code from sunos_exe...

[jdolecek <jdolecek%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/aa7871254405
branches:  trunk
changeset: 499910:aa7871254405
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Fri Dec 01 19:23:10 2000 +0000

description:
put aout specific sunos code from sunos_exec.c to separate file
sunos_exec_aout.c

diffstat:

 sys/compat/sunos/sunos_exec_aout.c |  228 +++++++++++++++++++++++++++++++++++++
 1 files changed, 228 insertions(+), 0 deletions(-)

diffs (232 lines):

diff -r 7803a63b0bdb -r aa7871254405 sys/compat/sunos/sunos_exec_aout.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/compat/sunos/sunos_exec_aout.c        Fri Dec 01 19:23:10 2000 +0000
@@ -0,0 +1,228 @@
+/*     $NetBSD: sunos_exec_aout.c,v 1.1 2000/12/01 19:23:10 jdolecek Exp $     */
+
+/*
+ * Copyright (c) 1993 Theo de Raadt
+ * 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. 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. 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/systm.h>
+#include <sys/filedesc.h>
+#include <sys/kernel.h>
+#include <sys/proc.h>
+#include <sys/mount.h>
+#include <sys/malloc.h>
+#include <sys/namei.h>
+#include <sys/signalvar.h>
+#include <sys/vnode.h>
+#include <sys/file.h>
+#include <sys/exec.h>
+#include <sys/resourcevar.h>
+#include <sys/wait.h>
+
+#include <sys/mman.h>
+
+#include <machine/cpu.h>
+#include <machine/reg.h>
+
+#include <compat/sunos/sunos.h>
+#include <compat/sunos/sunos_exec.h>
+#include <compat/sunos/sunos_syscall.h>
+
+#ifdef __sparc__
+#define        sunos_exec_aout_prep_zmagic exec_aout_prep_zmagic
+#define        sunos_exec_aout_prep_nmagic exec_aout_prep_nmagic
+#define        sunos_exec_aout_prep_omagic exec_aout_prep_omagic
+#endif
+
+int sunos_exec_aout_prep_zmagic __P((struct proc *, struct exec_package *));
+int sunos_exec_aout_prep_nmagic __P((struct proc *, struct exec_package *));
+int sunos_exec_aout_prep_omagic __P((struct proc *, struct exec_package *));
+
+int
+exec_sunos_aout_makecmds(p, epp)
+       struct proc *p;
+       struct exec_package *epp;
+{
+       struct sunos_exec *sunmag = epp->ep_hdr;
+       int error = ENOEXEC;
+
+       if(sunmag->a_machtype != SUNOS_M_NATIVE)
+               return (ENOEXEC);
+
+       switch (sunmag->a_magic) {
+       case ZMAGIC:
+               error = sunos_exec_aout_prep_zmagic(p, epp);
+               break;
+       case NMAGIC:
+               error = sunos_exec_aout_prep_nmagic(p, epp);
+               break;
+       case OMAGIC:
+               error = sunos_exec_aout_prep_omagic(p, epp);
+               break;
+       }
+       return error;
+}
+
+/*
+ * the code below is only needed for sun3 emulation.
+ */
+#ifndef __sparc__
+
+/* suns keep data seg aligned to SEGSIZ because of sun custom mmu */
+#define SEGSIZ         0x20000
+#define SUNOS_N_TXTADDR(x,m)   __LDPGSZ
+#define SUNOS_N_DATADDR(x,m)   (((m)==OMAGIC) ? \
+       (SUNOS_N_TXTADDR(x,m) + (x).a_text) : \
+       (SEGSIZ + ((SUNOS_N_TXTADDR(x,m) + (x).a_text - 1) & ~(SEGSIZ-1))))
+#define SUNOS_N_BSSADDR(x,m)   (SUNOS_N_DATADDR(x,m)+(x).a_data)
+
+#define SUNOS_N_TXTOFF(x,m)    ((m)==ZMAGIC ? 0 : sizeof (struct exec))
+#define SUNOS_N_DATOFF(x,m)    (SUNOS_N_TXTOFF(x,m) + (x).a_text)
+
+/*
+ * sunos_exec_aout_prep_zmagic(): Prepare a SunOS ZMAGIC binary's exec package
+ *
+ * First, set of the various offsets/lengths in the exec package.
+ *
+ * Then, mark the text image busy (so it can be demand paged) or error
+ * out if this is not possible.  Finally, set up vmcmds for the
+ * text, data, bss, and stack segments.
+ */
+int
+sunos_exec_aout_prep_zmagic(p, epp)
+       struct proc *p;
+       struct exec_package *epp;
+{
+       struct exec *execp = epp->ep_hdr;
+
+       epp->ep_taddr = SUNOS_N_TXTADDR(*execp, ZMAGIC);
+       epp->ep_tsize = execp->a_text;
+       epp->ep_daddr = SUNOS_N_DATADDR(*execp, ZMAGIC);
+       epp->ep_dsize = execp->a_data + execp->a_bss;
+       epp->ep_entry = execp->a_entry;
+
+       /*
+        * check if vnode is in open for writing, because we want to
+        * demand-page out of it.  if it is, don't do it, for various
+        * reasons
+        */
+       if ((execp->a_text != 0 || execp->a_data != 0) &&
+           epp->ep_vp->v_writecount != 0) {
+#ifdef DIAGNOSTIC
+               if (epp->ep_vp->v_flag & VTEXT)
+                       panic("exec: a VTEXT vnode has writecount != 0\n");
+#endif
+               return ETXTBSY;
+       }
+       vn_marktext(epp->ep_vp);
+
+       /* set up command for text segment */
+       NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_pagedvn, execp->a_text,
+           epp->ep_taddr, epp->ep_vp, SUNOS_N_TXTOFF(*execp, ZMAGIC), 
+           VM_PROT_READ|VM_PROT_EXECUTE);
+
+       /* set up command for data segment */
+       NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_pagedvn, execp->a_data,
+           epp->ep_daddr, epp->ep_vp, SUNOS_N_DATOFF(*execp, ZMAGIC),
+           VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
+
+       /* set up command for bss segment */
+       NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_zero, execp->a_bss,
+           epp->ep_daddr + execp->a_data, NULLVP, 0,
+           VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
+
+       return exec_aout_setup_stack(p, epp);
+}
+
+/*
+ * sunos_exec_aout_prep_nmagic(): Prepare a SunOS NMAGIC binary's exec package
+ */
+int
+sunos_exec_aout_prep_nmagic(p, epp)
+       struct proc *p;
+       struct exec_package *epp;
+{
+       struct exec *execp = epp->ep_hdr;
+       long bsize, baddr;
+
+       epp->ep_taddr = SUNOS_N_TXTADDR(*execp, NMAGIC);
+       epp->ep_tsize = execp->a_text;
+       epp->ep_daddr = SUNOS_N_DATADDR(*execp, NMAGIC);
+       epp->ep_dsize = execp->a_data + execp->a_bss;
+       epp->ep_entry = execp->a_entry;
+
+       /* set up command for text segment */
+       NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_readvn, execp->a_text,
+           epp->ep_taddr, epp->ep_vp, SUNOS_N_TXTOFF(*execp, NMAGIC),
+           VM_PROT_READ|VM_PROT_EXECUTE);
+
+       /* set up command for data segment */
+       NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_readvn, execp->a_data,
+           epp->ep_daddr, epp->ep_vp, SUNOS_N_DATOFF(*execp, NMAGIC),
+           VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
+
+       /* set up command for bss segment */
+       baddr = roundup(epp->ep_daddr + execp->a_data, NBPG);
+       bsize = epp->ep_daddr + epp->ep_dsize - baddr;
+       if (bsize > 0)
+               NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_zero, bsize, baddr,
+                   NULLVP, 0, VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
+
+       return exec_aout_setup_stack(p, epp);
+}
+
+/*
+ * sunos_exec_aout_prep_omagic(): Prepare a SunOS OMAGIC binary's exec package
+ */
+int
+sunos_exec_aout_prep_omagic(p, epp)
+       struct proc *p;
+       struct exec_package *epp;
+{
+       struct exec *execp = epp->ep_hdr;
+       long bsize, baddr;
+
+       epp->ep_taddr = SUNOS_N_TXTADDR(*execp, OMAGIC);
+       epp->ep_tsize = execp->a_text;
+       epp->ep_daddr = SUNOS_N_DATADDR(*execp, OMAGIC);
+       epp->ep_dsize = execp->a_data + execp->a_bss;
+       epp->ep_entry = execp->a_entry;
+
+       /* set up command for text and data segments */
+       NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_readvn,
+           execp->a_text + execp->a_data, epp->ep_taddr, epp->ep_vp,
+           SUNOS_N_TXTOFF(*execp, OMAGIC), VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
+
+       /* set up command for bss segment */
+       baddr = roundup(epp->ep_daddr + execp->a_data, NBPG);
+       bsize = epp->ep_daddr + epp->ep_dsize - baddr;
+       if (bsize > 0)
+               NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_zero, bsize, baddr,
+                   NULLVP, 0, VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
+
+       return exec_aout_setup_stack(p, epp);
+}
+#endif /* !sparc */