Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl> |
| 3 | * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl> |
| 4 | * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com> |
Wichert Akkerman | 4dc8a2a | 1999-12-23 14:20:14 +0000 | [diff] [blame] | 5 | * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl> |
| 6 | * Copyright (c) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| 7 | * Linux for s390 port by D.J. Barrow |
| 8 | * <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com> |
Wichert Akkerman | ccef637 | 2002-05-01 16:39:22 +0000 | [diff] [blame] | 9 | * Copyright (c) 2000 PocketPenguins Inc. Linux for Hitachi SuperH |
| 10 | * port by Greg Banks <gbanks@pocketpenguins.com> |
Wichert Akkerman | 4dc8a2a | 1999-12-23 14:20:14 +0000 | [diff] [blame] | 11 | * |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 12 | * All rights reserved. |
| 13 | * |
| 14 | * Redistribution and use in source and binary forms, with or without |
| 15 | * modification, are permitted provided that the following conditions |
| 16 | * are met: |
| 17 | * 1. Redistributions of source code must retain the above copyright |
| 18 | * notice, this list of conditions and the following disclaimer. |
| 19 | * 2. Redistributions in binary form must reproduce the above copyright |
| 20 | * notice, this list of conditions and the following disclaimer in the |
| 21 | * documentation and/or other materials provided with the distribution. |
| 22 | * 3. The name of the author may not be used to endorse or promote products |
| 23 | * derived from this software without specific prior written permission. |
| 24 | * |
| 25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 26 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 27 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 28 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 29 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 30 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 31 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 32 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 33 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 34 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 35 | */ |
| 36 | |
| 37 | #include "defs.h" |
Dmitry V. Levin | 6eee4e0 | 2014-12-11 19:25:02 +0000 | [diff] [blame] | 38 | |
Dmitry V. Levin | c41808b | 2013-03-18 00:52:29 +0000 | [diff] [blame] | 39 | #ifdef HAVE_ELF_H |
| 40 | # include <elf.h> |
| 41 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 42 | |
Dmitry V. Levin | 6eee4e0 | 2014-12-11 19:25:02 +0000 | [diff] [blame] | 43 | #include "xlat/nt_descriptor_types.h" |
| 44 | |
| 45 | #include <sys/user.h> |
Wichert Akkerman | 36915a1 | 1999-07-13 15:45:02 +0000 | [diff] [blame] | 46 | #ifdef HAVE_SYS_REG_H |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 47 | # include <sys/reg.h> |
Wichert Akkerman | 15dea97 | 1999-10-06 13:06:34 +0000 | [diff] [blame] | 48 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 49 | |
Roland McGrath | 5bd7cf8 | 2003-01-24 04:31:18 +0000 | [diff] [blame] | 50 | #ifdef HAVE_LINUX_PTRACE_H |
Denys Vlasenko | 8470374 | 2012-02-25 02:38:52 +0100 | [diff] [blame] | 51 | # undef PTRACE_SYSCALL |
Roland McGrath | fb1bc07 | 2004-03-01 21:29:24 +0000 | [diff] [blame] | 52 | # ifdef HAVE_STRUCT_IA64_FPREG |
| 53 | # define ia64_fpreg XXX_ia64_fpreg |
| 54 | # endif |
| 55 | # ifdef HAVE_STRUCT_PT_ALL_USER_REGS |
| 56 | # define pt_all_user_regs XXX_pt_all_user_regs |
| 57 | # endif |
Ali Polatel | 0b4060f | 2013-09-24 20:04:32 +0300 | [diff] [blame] | 58 | # ifdef HAVE_STRUCT_PTRACE_PEEKSIGINFO_ARGS |
| 59 | # define ptrace_peeksiginfo_args XXX_ptrace_peeksiginfo_args |
| 60 | # endif |
Denys Vlasenko | 8470374 | 2012-02-25 02:38:52 +0100 | [diff] [blame] | 61 | # include <linux/ptrace.h> |
Ali Polatel | 0b4060f | 2013-09-24 20:04:32 +0300 | [diff] [blame] | 62 | # undef ptrace_peeksiginfo_args |
Roland McGrath | fb1bc07 | 2004-03-01 21:29:24 +0000 | [diff] [blame] | 63 | # undef ia64_fpreg |
| 64 | # undef pt_all_user_regs |
Roland McGrath | 5bd7cf8 | 2003-01-24 04:31:18 +0000 | [diff] [blame] | 65 | #endif |
| 66 | |
Denys Vlasenko | 8470374 | 2012-02-25 02:38:52 +0100 | [diff] [blame] | 67 | #if defined(SPARC64) |
Roland McGrath | 6d1a65c | 2004-07-12 07:44:08 +0000 | [diff] [blame] | 68 | # define r_pc r_tpc |
| 69 | # undef PTRACE_GETREGS |
| 70 | # define PTRACE_GETREGS PTRACE_GETREGS64 |
| 71 | # undef PTRACE_SETREGS |
| 72 | # define PTRACE_SETREGS PTRACE_SETREGS64 |
Denys Vlasenko | 8470374 | 2012-02-25 02:38:52 +0100 | [diff] [blame] | 73 | #endif |
Roland McGrath | 6d1a65c | 2004-07-12 07:44:08 +0000 | [diff] [blame] | 74 | |
Dmitry V. Levin | 6eee4e0 | 2014-12-11 19:25:02 +0000 | [diff] [blame] | 75 | #include "xlat/ptrace_cmds.h" |
| 76 | #include "xlat/ptrace_setoptions_flags.h" |
| 77 | |
Denys Vlasenko | 8470374 | 2012-02-25 02:38:52 +0100 | [diff] [blame] | 78 | #if defined(IA64) |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 79 | # include <asm/ptrace_offsets.h> |
| 80 | # include <asm/rse.h> |
| 81 | #endif |
| 82 | |
Denys Vlasenko | 513e9c2 | 2012-03-21 14:39:22 +0100 | [diff] [blame] | 83 | #define uoff(member) offsetof(struct user, member) |
Dmitry V. Levin | c6ce4fd | 2014-12-11 19:25:02 +0000 | [diff] [blame] | 84 | #define XLAT_UOFF(member) { uoff(member), "offsetof(struct user, " #member ")" } |
Denys Vlasenko | 513e9c2 | 2012-03-21 14:39:22 +0100 | [diff] [blame] | 85 | |
Dmitry V. Levin | 8c0ef94 | 2014-12-11 19:25:02 +0000 | [diff] [blame] | 86 | static const struct xlat struct_user_offsets[] = { |
Dmitry V. Levin | fced7b0 | 2014-12-11 19:25:02 +0000 | [diff] [blame] | 87 | #include "userent.h" |
Dmitry V. Levin | 5945273 | 2014-02-05 02:20:51 +0000 | [diff] [blame] | 88 | XLAT_END |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 89 | }; |
| 90 | |
| 91 | int |
Denys Vlasenko | c7e8371 | 2009-02-24 12:59:47 +0000 | [diff] [blame] | 92 | sys_ptrace(struct tcb *tcp) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 93 | { |
Roland McGrath | d9f816f | 2004-09-04 03:39:20 +0000 | [diff] [blame] | 94 | const struct xlat *x; |
Dmitry V. Levin | 3ed5d02 | 2014-09-10 13:46:04 +0000 | [diff] [blame] | 95 | unsigned long addr; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 96 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 97 | if (entering(tcp)) { |
Denys Vlasenko | b7a6dae | 2012-03-20 16:48:35 +0100 | [diff] [blame] | 98 | printxval(ptrace_cmds, tcp->u_arg[0], "PTRACE_???"); |
Roland McGrath | bf621d4 | 2003-01-14 09:46:21 +0000 | [diff] [blame] | 99 | tprintf(", %lu, ", tcp->u_arg[1]); |
Denys Vlasenko | be99497 | 2013-02-13 16:10:10 +0100 | [diff] [blame] | 100 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 101 | addr = tcp->u_arg[2]; |
| 102 | if (tcp->u_arg[0] == PTRACE_PEEKUSER |
Denys Vlasenko | be99497 | 2013-02-13 16:10:10 +0100 | [diff] [blame] | 103 | || tcp->u_arg[0] == PTRACE_POKEUSER |
| 104 | ) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 105 | for (x = struct_user_offsets; x->str; x++) { |
| 106 | if (x->val >= addr) |
| 107 | break; |
| 108 | } |
| 109 | if (!x->str) |
| 110 | tprintf("%#lx, ", addr); |
| 111 | else if (x->val > addr && x != struct_user_offsets) { |
| 112 | x--; |
| 113 | tprintf("%s + %ld, ", x->str, addr - x->val); |
| 114 | } |
| 115 | else |
| 116 | tprintf("%s, ", x->str); |
Denys Vlasenko | be99497 | 2013-02-13 16:10:10 +0100 | [diff] [blame] | 117 | } else |
| 118 | #ifdef PTRACE_GETREGSET |
Dmitry V. Levin | c41808b | 2013-03-18 00:52:29 +0000 | [diff] [blame] | 119 | if (tcp->u_arg[0] == PTRACE_GETREGSET |
| 120 | || tcp->u_arg[0] == PTRACE_SETREGSET |
| 121 | ) { |
| 122 | printxval(nt_descriptor_types, tcp->u_arg[2], "NT_???"); |
| 123 | tprints(", "); |
| 124 | } else |
Denys Vlasenko | be99497 | 2013-02-13 16:10:10 +0100 | [diff] [blame] | 125 | #endif |
| 126 | tprintf("%#lx, ", addr); |
| 127 | |
| 128 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 129 | switch (tcp->u_arg[0]) { |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 130 | #ifndef IA64 |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 131 | case PTRACE_PEEKDATA: |
| 132 | case PTRACE_PEEKTEXT: |
| 133 | case PTRACE_PEEKUSER: |
| 134 | break; |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 135 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 136 | case PTRACE_CONT: |
| 137 | case PTRACE_SINGLESTEP: |
| 138 | case PTRACE_SYSCALL: |
| 139 | case PTRACE_DETACH: |
| 140 | printsignal(tcp->u_arg[3]); |
| 141 | break; |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 142 | #ifdef PTRACE_SETOPTIONS |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 143 | case PTRACE_SETOPTIONS: |
| 144 | printflags(ptrace_setoptions_flags, tcp->u_arg[3], "PTRACE_O_???"); |
| 145 | break; |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 146 | #endif |
| 147 | #ifdef PTRACE_SETSIGINFO |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 148 | case PTRACE_SETSIGINFO: { |
Denys Vlasenko | d4d3ede | 2013-02-13 16:31:32 +0100 | [diff] [blame] | 149 | printsiginfo_at(tcp, tcp->u_arg[3]); |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 150 | break; |
| 151 | } |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 152 | #endif |
| 153 | #ifdef PTRACE_GETSIGINFO |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 154 | case PTRACE_GETSIGINFO: |
| 155 | /* Don't print anything, do it at syscall return. */ |
| 156 | break; |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 157 | #endif |
Denys Vlasenko | be99497 | 2013-02-13 16:10:10 +0100 | [diff] [blame] | 158 | #ifdef PTRACE_GETREGSET |
| 159 | case PTRACE_GETREGSET: |
| 160 | break; |
| 161 | case PTRACE_SETREGSET: |
| 162 | tprint_iov(tcp, /*len:*/ 1, tcp->u_arg[3], /*as string:*/ 0); |
| 163 | break; |
| 164 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 165 | default: |
| 166 | tprintf("%#lx", tcp->u_arg[3]); |
| 167 | break; |
| 168 | } |
| 169 | } else { |
| 170 | switch (tcp->u_arg[0]) { |
| 171 | case PTRACE_PEEKDATA: |
| 172 | case PTRACE_PEEKTEXT: |
| 173 | case PTRACE_PEEKUSER: |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 174 | #ifdef IA64 |
Roland McGrath | 1e86806 | 2007-11-19 22:11:45 +0000 | [diff] [blame] | 175 | return RVAL_HEX; |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 176 | #else |
Roland McGrath | eb28535 | 2003-01-14 09:59:00 +0000 | [diff] [blame] | 177 | printnum(tcp, tcp->u_arg[3], "%#lx"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 178 | break; |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 179 | #endif |
| 180 | #ifdef PTRACE_GETSIGINFO |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 181 | case PTRACE_GETSIGINFO: { |
Denys Vlasenko | d4d3ede | 2013-02-13 16:31:32 +0100 | [diff] [blame] | 182 | printsiginfo_at(tcp, tcp->u_arg[3]); |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 183 | break; |
| 184 | } |
Denys Vlasenko | 3e3490a | 2012-03-17 01:27:37 +0100 | [diff] [blame] | 185 | #endif |
Denys Vlasenko | be99497 | 2013-02-13 16:10:10 +0100 | [diff] [blame] | 186 | #ifdef PTRACE_GETREGSET |
| 187 | case PTRACE_GETREGSET: |
| 188 | tprint_iov(tcp, /*len:*/ 1, tcp->u_arg[3], /*as string:*/ 0); |
| 189 | break; |
| 190 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 191 | } |
| 192 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 193 | return 0; |
| 194 | } |