blob: b2dfac193b05ce9e7520801975f346097b93bf03 [file] [log] [blame]
/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* Copyright (c) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Linux for s390 port by D.J. Barrow
* <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com>
* Copyright (c) 2000 PocketPenguins Inc. Linux for Hitachi SuperH
* port by Greg Banks <gbanks@pocketpenguins.com>
*
* 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 "defs.h"
#ifdef HAVE_ELF_H
# include <elf.h>
#endif
#include "xlat/nt_descriptor_types.h"
#include "regs.h"
#include "ptrace.h"
#include "xlat/ptrace_cmds.h"
#include "xlat/ptrace_setoptions_flags.h"
#define uoff(member) offsetof(struct user, member)
#define XLAT_UOFF(member) { uoff(member), "offsetof(struct user, " #member ")" }
static const struct xlat struct_user_offsets[] = {
#include "userent.h"
XLAT_END
};
static void
print_user_offset_addr(const unsigned long addr)
{
const struct xlat *x;
for (x = struct_user_offsets; x->str; ++x) {
if (x->val >= addr)
break;
}
if (!x->str) {
printaddr(addr);
} else if (x->val > addr) {
if (x == struct_user_offsets) {
printaddr(addr);
} else {
--x;
tprintf("%s + %lu",
x->str, addr - (unsigned long) x->val);
}
} else {
tprints(x->str);
}
}
SYS_FUNC(ptrace)
{
const unsigned long request = tcp->u_arg[0];
const int pid = tcp->u_arg[1];
const unsigned long addr = tcp->u_arg[2];
const unsigned long data = tcp->u_arg[3];
if (entering(tcp)) {
/* request */
printxval64(ptrace_cmds, request, "PTRACE_???");
/* pid */
tprintf(", %d, ", pid);
/* addr */
switch (request) {
case PTRACE_PEEKUSER:
case PTRACE_POKEUSER:
print_user_offset_addr(addr);
break;
case PTRACE_GETREGSET:
case PTRACE_SETREGSET:
printxval(nt_descriptor_types, addr, "NT_???");
break;
default:
printaddr(addr);
}
tprints(", ");
switch (request) {
#ifndef IA64
case PTRACE_PEEKDATA:
case PTRACE_PEEKTEXT:
case PTRACE_PEEKUSER:
break;
#endif
case PTRACE_CONT:
case PTRACE_SINGLESTEP:
case PTRACE_SYSCALL:
case PTRACE_DETACH:
printsignal(data);
break;
case PTRACE_SETOPTIONS:
printflags(ptrace_setoptions_flags, data, "PTRACE_O_???");
break;
case PTRACE_SETSIGINFO:
printsiginfo_at(tcp, data);
break;
case PTRACE_SETREGSET:
tprint_iov(tcp, /*len:*/ 1, data, /*as string:*/ 0);
break;
case PTRACE_GETSIGINFO:
case PTRACE_GETREGSET:
/* Don't print anything, do it at syscall return. */
break;
default:
printaddr(data);
break;
}
} else {
switch (request) {
case PTRACE_PEEKDATA:
case PTRACE_PEEKTEXT:
case PTRACE_PEEKUSER:
#ifdef IA64
return RVAL_HEX;
#else
printnum_ptr(tcp, data);
break;
#endif
case PTRACE_GETSIGINFO:
printsiginfo_at(tcp, data);
break;
case PTRACE_GETREGSET:
tprint_iov(tcp, /*len:*/ 1, data, /*as string:*/ 0);
break;
}
}
return 0;
}