Dmitry V. Levin
ccdc82a57d
* process.c (print_user_offset_addr): New function for printing offset address in the tracee's USER area. (SYS_FUNC(ptrace)): Assign syscall arguments to local variables with appropriate types. Print pid argument as int. Use switch statement in the code that handles address argument. Use print_user_offset_addr to print address in PTRACE_PEEKUSER and PTRACE_POKEUSER requests.
160 lines
4.4 KiB
C
160 lines
4.4 KiB
C
/*
|
|
* 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 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)) {
|
|
printxval(ptrace_cmds, request, "PTRACE_???");
|
|
tprintf(", %d, ", pid);
|
|
|
|
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;
|
|
}
|