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 | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer. |
| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * 3. The name of the author may not be used to endorse or promote products |
| 20 | * derived from this software without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 23 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 24 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 25 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | * |
| 33 | * $Id$ |
| 34 | */ |
| 35 | |
| 36 | #include "defs.h" |
| 37 | |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 38 | #include <signal.h> |
| 39 | #include <sys/syscall.h> |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 40 | #include <sys/user.h> |
| 41 | #include <sys/param.h> |
| 42 | #include <fcntl.h> |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 43 | #if HAVE_SYS_UIO_H |
| 44 | #include <sys/uio.h> |
| 45 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 46 | #ifdef SUNOS4 |
| 47 | #include <machine/reg.h> |
| 48 | #include <a.out.h> |
| 49 | #include <link.h> |
| 50 | #endif /* SUNOS4 */ |
Wichert Akkerman | 36915a1 | 1999-07-13 15:45:02 +0000 | [diff] [blame] | 51 | |
Wichert Akkerman | 43a7482 | 2000-06-27 17:33:32 +0000 | [diff] [blame] | 52 | #if defined(linux) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 1)) |
Wichert Akkerman | 36915a1 | 1999-07-13 15:45:02 +0000 | [diff] [blame] | 53 | #include <linux/ptrace.h> |
Roland McGrath | 1e85cf9 | 2002-12-16 20:40:54 +0000 | [diff] [blame] | 54 | #endif |
Wichert Akkerman | 36915a1 | 1999-07-13 15:45:02 +0000 | [diff] [blame] | 55 | |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 56 | #if defined(LINUX) && defined(IA64) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 57 | # include <asm/ptrace_offsets.h> |
| 58 | # include <asm/rse.h> |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 59 | #endif |
| 60 | |
Wichert Akkerman | 36915a1 | 1999-07-13 15:45:02 +0000 | [diff] [blame] | 61 | #ifdef HAVE_SYS_REG_H |
| 62 | #include <sys/reg.h> |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 63 | # define PTRACE_PEEKUSR PTRACE_PEEKUSER |
Wichert Akkerman | faf7222 | 2000-02-19 23:59:03 +0000 | [diff] [blame] | 64 | #elif defined(HAVE_LINUX_PTRACE_H) |
| 65 | #undef PTRACE_SYSCALL |
Roland McGrath | ce9f074 | 2004-03-01 21:29:22 +0000 | [diff] [blame] | 66 | # ifdef HAVE_STRUCT_IA64_FPREG |
| 67 | # define ia64_fpreg XXX_ia64_fpreg |
| 68 | # endif |
| 69 | # ifdef HAVE_STRUCT_PT_ALL_USER_REGS |
| 70 | # define pt_all_user_regs XXX_pt_all_user_regs |
| 71 | # endif |
Wichert Akkerman | faf7222 | 2000-02-19 23:59:03 +0000 | [diff] [blame] | 72 | #include <linux/ptrace.h> |
Roland McGrath | ce9f074 | 2004-03-01 21:29:22 +0000 | [diff] [blame] | 73 | # undef ia64_fpreg |
| 74 | # undef pt_all_user_regs |
Wichert Akkerman | 2e2553a | 1999-05-09 00:29:58 +0000 | [diff] [blame] | 75 | #endif |
| 76 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 77 | #ifdef SUNOS4_KERNEL_ARCH_KLUDGE |
| 78 | #include <sys/utsname.h> |
| 79 | #endif /* SUNOS4_KERNEL_ARCH_KLUDGE */ |
| 80 | |
Mike Frysinger | 8566c50 | 2009-10-12 11:05:14 -0400 | [diff] [blame] | 81 | #if defined(LINUXSPARC) && defined (SPARC64) |
Roland McGrath | 6d1a65c | 2004-07-12 07:44:08 +0000 | [diff] [blame] | 82 | # undef PTRACE_GETREGS |
| 83 | # define PTRACE_GETREGS PTRACE_GETREGS64 |
| 84 | # undef PTRACE_SETREGS |
| 85 | # define PTRACE_SETREGS PTRACE_SETREGS64 |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 86 | #endif |
| 87 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 88 | /* macros */ |
| 89 | #ifndef MAX |
| 90 | #define MAX(a,b) (((a) > (b)) ? (a) : (b)) |
| 91 | #endif |
| 92 | #ifndef MIN |
| 93 | #define MIN(a,b) (((a) < (b)) ? (a) : (b)) |
| 94 | #endif |
| 95 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 96 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 97 | tv_nz(struct timeval *a) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 98 | { |
| 99 | return a->tv_sec || a->tv_usec; |
| 100 | } |
| 101 | |
| 102 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 103 | tv_cmp(struct timeval *a, struct timeval *b) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 104 | { |
| 105 | if (a->tv_sec < b->tv_sec |
| 106 | || (a->tv_sec == b->tv_sec && a->tv_usec < b->tv_usec)) |
| 107 | return -1; |
| 108 | if (a->tv_sec > b->tv_sec |
| 109 | || (a->tv_sec == b->tv_sec && a->tv_usec > b->tv_usec)) |
| 110 | return 1; |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | double |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 115 | tv_float(struct timeval *tv) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 116 | { |
| 117 | return tv->tv_sec + tv->tv_usec/1000000.0; |
| 118 | } |
| 119 | |
| 120 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 121 | tv_add(struct timeval *tv, struct timeval *a, struct timeval *b) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 122 | { |
| 123 | tv->tv_sec = a->tv_sec + b->tv_sec; |
| 124 | tv->tv_usec = a->tv_usec + b->tv_usec; |
Roland McGrath | 58372f5 | 2007-07-24 01:38:22 +0000 | [diff] [blame] | 125 | if (tv->tv_usec >= 1000000) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 126 | tv->tv_sec++; |
| 127 | tv->tv_usec -= 1000000; |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 132 | tv_sub(struct timeval *tv, struct timeval *a, struct timeval *b) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 133 | { |
| 134 | tv->tv_sec = a->tv_sec - b->tv_sec; |
| 135 | tv->tv_usec = a->tv_usec - b->tv_usec; |
| 136 | if (((long) tv->tv_usec) < 0) { |
| 137 | tv->tv_sec--; |
| 138 | tv->tv_usec += 1000000; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 143 | tv_div(struct timeval *tv, struct timeval *a, int n) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 144 | { |
| 145 | tv->tv_usec = (a->tv_sec % n * 1000000 + a->tv_usec + n / 2) / n; |
| 146 | tv->tv_sec = a->tv_sec / n + tv->tv_usec / 1000000; |
| 147 | tv->tv_usec %= 1000000; |
| 148 | } |
| 149 | |
| 150 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 151 | tv_mul(struct timeval *tv, struct timeval *a, int n) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 152 | { |
| 153 | tv->tv_usec = a->tv_usec * n; |
Dmitry V. Levin | fefdd97 | 2007-06-29 21:25:56 +0000 | [diff] [blame] | 154 | tv->tv_sec = a->tv_sec * n + tv->tv_usec / 1000000; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 155 | tv->tv_usec %= 1000000; |
| 156 | } |
| 157 | |
Dmitry V. Levin | ab9008b | 2007-01-11 22:05:04 +0000 | [diff] [blame] | 158 | const char * |
| 159 | xlookup(const struct xlat *xlat, int val) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 160 | { |
| 161 | for (; xlat->str != NULL; xlat++) |
| 162 | if (xlat->val == val) |
| 163 | return xlat->str; |
| 164 | return NULL; |
| 165 | } |
| 166 | |
Denys Vlasenko | 0a295bc | 2011-09-01 16:31:48 +0200 | [diff] [blame] | 167 | #if !defined HAVE_STPCPY |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 168 | char * |
| 169 | stpcpy(char *dst, const char *src) |
| 170 | { |
| 171 | while ((*dst = *src++) != '\0') |
| 172 | dst++; |
| 173 | return dst; |
| 174 | } |
Denys Vlasenko | 0a295bc | 2011-09-01 16:31:48 +0200 | [diff] [blame] | 175 | #endif |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 176 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 177 | /* |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 178 | * Generic ptrace wrapper which tracks ESRCH errors |
| 179 | * by setting tcp->ptrace_errno to ESRCH. |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 180 | * |
| 181 | * We assume that ESRCH indicates likely process death (SIGKILL?), |
| 182 | * modulo bugs where process somehow ended up not stopped. |
| 183 | * Unfortunately kernel uses ESRCH for that case too. Oh well. |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 184 | * |
| 185 | * Currently used by upeek() only. |
| 186 | * TODO: use this in all other ptrace() calls while decoding. |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 187 | */ |
Denys Vlasenko | 4dedd56 | 2009-02-24 15:17:53 +0000 | [diff] [blame] | 188 | long |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 189 | do_ptrace(int request, struct tcb *tcp, void *addr, void *data) |
Denys Vlasenko | 4dedd56 | 2009-02-24 15:17:53 +0000 | [diff] [blame] | 190 | { |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 191 | long l; |
| 192 | |
| 193 | errno = 0; |
Mike Frysinger | 09a13c2 | 2009-10-07 01:13:39 -0400 | [diff] [blame] | 194 | l = ptrace(request, tcp->pid, addr, (long) data); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 195 | /* Non-ESRCH errors might be our invalid reg/mem accesses, |
| 196 | * we do not record them. */ |
| 197 | if (errno == ESRCH) |
| 198 | tcp->ptrace_errno = ESRCH; |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 199 | return l; |
| 200 | } |
| 201 | |
| 202 | /* |
| 203 | * Used when we want to unblock stopped traced process. |
| 204 | * Should be only used with PTRACE_CONT, PTRACE_DETACH and PTRACE_SYSCALL. |
| 205 | * Returns 0 on success or if error was ESRCH |
| 206 | * (presumably process was killed while we talk to it). |
| 207 | * Otherwise prints error message and returns -1. |
| 208 | */ |
| 209 | int |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 210 | ptrace_restart(int op, struct tcb *tcp, int sig) |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 211 | { |
| 212 | int err; |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 213 | const char *msg; |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 214 | |
| 215 | errno = 0; |
Mike Frysinger | 09a13c2 | 2009-10-07 01:13:39 -0400 | [diff] [blame] | 216 | ptrace(op, tcp->pid, (void *) 1, (long) sig); |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 217 | err = errno; |
| 218 | if (!err || err == ESRCH) |
| 219 | return 0; |
| 220 | |
| 221 | tcp->ptrace_errno = err; |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 222 | msg = "SYSCALL"; |
| 223 | if (op == PTRACE_CONT) |
| 224 | msg = "CONT"; |
| 225 | if (op == PTRACE_DETACH) |
| 226 | msg = "DETACH"; |
Denys Vlasenko | 014ca3a | 2011-09-02 16:19:30 +0200 | [diff] [blame] | 227 | perror_msg("ptrace(PTRACE_%s,1,%d)", msg, sig); |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 228 | return -1; |
| 229 | } |
| 230 | |
| 231 | /* |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 232 | * Print entry in struct xlat table, if there. |
| 233 | */ |
| 234 | void |
Dmitry V. Levin | ab9008b | 2007-01-11 22:05:04 +0000 | [diff] [blame] | 235 | printxval(const struct xlat *xlat, int val, const char *dflt) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 236 | { |
Dmitry V. Levin | ab9008b | 2007-01-11 22:05:04 +0000 | [diff] [blame] | 237 | const char *str = xlookup(xlat, val); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 238 | |
| 239 | if (str) |
Denys Vlasenko | 5940e65 | 2011-09-01 09:55:05 +0200 | [diff] [blame] | 240 | tprints(str); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 241 | else |
| 242 | tprintf("%#x /* %s */", val, dflt); |
| 243 | } |
| 244 | |
Andreas Schwab | b5600fc | 2009-11-04 17:08:34 +0100 | [diff] [blame] | 245 | #if HAVE_LONG_LONG |
| 246 | /* |
| 247 | * Print 64bit argument at position llarg and return the index of the next |
| 248 | * argument. |
| 249 | */ |
| 250 | int |
| 251 | printllval(struct tcb *tcp, const char *format, int llarg) |
| 252 | { |
| 253 | # if defined(FREEBSD) \ |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 254 | || (defined(LINUX) && defined(POWERPC) && !defined(POWERPC64)) \ |
Dmitry V. Levin | 7a5b08f | 2011-05-28 20:47:43 +0000 | [diff] [blame] | 255 | || defined(LINUX_MIPSO32) \ |
| 256 | || defined(__ARM_EABI__) |
Andreas Schwab | b5600fc | 2009-11-04 17:08:34 +0100 | [diff] [blame] | 257 | /* Align 64bit argument to 64bit boundary. */ |
Denys Vlasenko | 4b08df4 | 2011-08-19 15:58:24 +0200 | [diff] [blame] | 258 | llarg = (llarg + 1) & 0x1e; |
Andreas Schwab | b5600fc | 2009-11-04 17:08:34 +0100 | [diff] [blame] | 259 | # endif |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 260 | # if defined LINUX && (defined X86_64 || defined POWERPC64) |
Andreas Schwab | b5600fc | 2009-11-04 17:08:34 +0100 | [diff] [blame] | 261 | if (current_personality == 0) { |
| 262 | tprintf(format, tcp->u_arg[llarg]); |
| 263 | llarg++; |
| 264 | } else { |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 265 | # ifdef POWERPC64 |
| 266 | /* Align 64bit argument to 64bit boundary. */ |
Denys Vlasenko | 4b08df4 | 2011-08-19 15:58:24 +0200 | [diff] [blame] | 267 | llarg = (llarg + 1) & 0x1e; |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 268 | # endif |
Andreas Schwab | b5600fc | 2009-11-04 17:08:34 +0100 | [diff] [blame] | 269 | tprintf(format, LONG_LONG(tcp->u_arg[llarg], tcp->u_arg[llarg + 1])); |
| 270 | llarg += 2; |
| 271 | } |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 272 | # elif defined IA64 || defined ALPHA |
Andreas Schwab | b5600fc | 2009-11-04 17:08:34 +0100 | [diff] [blame] | 273 | tprintf(format, tcp->u_arg[llarg]); |
| 274 | llarg++; |
| 275 | # elif defined LINUX_MIPSN32 |
| 276 | tprintf(format, tcp->ext_arg[llarg]); |
| 277 | llarg++; |
| 278 | # else |
| 279 | tprintf(format, LONG_LONG(tcp->u_arg[llarg], tcp->u_arg[llarg + 1])); |
| 280 | llarg += 2; |
| 281 | # endif |
| 282 | return llarg; |
| 283 | } |
| 284 | #endif |
| 285 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 286 | /* |
| 287 | * Interpret `xlat' as an array of flags |
| 288 | * print the entries whose bits are on in `flags' |
| 289 | * return # of flags printed. |
| 290 | */ |
Denys Vlasenko | 4924dbd | 2011-08-19 18:06:46 +0200 | [diff] [blame] | 291 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 292 | addflags(const struct xlat *xlat, int flags) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 293 | { |
Denys Vlasenko | 4924dbd | 2011-08-19 18:06:46 +0200 | [diff] [blame] | 294 | for (; xlat->str; xlat++) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 295 | if (xlat->val && (flags & xlat->val) == xlat->val) { |
| 296 | tprintf("|%s", xlat->str); |
| 297 | flags &= ~xlat->val; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 298 | } |
| 299 | } |
| 300 | if (flags) { |
| 301 | tprintf("|%#x", flags); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 302 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 303 | } |
| 304 | |
Roland McGrath | a6c0d8c | 2007-11-01 21:46:22 +0000 | [diff] [blame] | 305 | /* |
Denys Vlasenko | 4924dbd | 2011-08-19 18:06:46 +0200 | [diff] [blame] | 306 | * Interpret `xlat' as an array of flags. |
Roland McGrath | a6c0d8c | 2007-11-01 21:46:22 +0000 | [diff] [blame] | 307 | * Print to static string the entries whose bits are on in `flags' |
| 308 | * Return static string. |
| 309 | */ |
| 310 | const char * |
| 311 | sprintflags(const char *prefix, const struct xlat *xlat, int flags) |
| 312 | { |
| 313 | static char outstr[1024]; |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 314 | char *outptr; |
Roland McGrath | a6c0d8c | 2007-11-01 21:46:22 +0000 | [diff] [blame] | 315 | int found = 0; |
| 316 | |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 317 | outptr = stpcpy(outstr, prefix); |
Roland McGrath | a6c0d8c | 2007-11-01 21:46:22 +0000 | [diff] [blame] | 318 | |
| 319 | for (; xlat->str; xlat++) { |
| 320 | if ((flags & xlat->val) == xlat->val) { |
| 321 | if (found) |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 322 | *outptr++ = '|'; |
| 323 | outptr = stpcpy(outptr, xlat->str); |
Roland McGrath | a6c0d8c | 2007-11-01 21:46:22 +0000 | [diff] [blame] | 324 | flags &= ~xlat->val; |
| 325 | found = 1; |
| 326 | } |
| 327 | } |
| 328 | if (flags) { |
| 329 | if (found) |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 330 | *outptr++ = '|'; |
| 331 | outptr += sprintf(outptr, "%#x", flags); |
Roland McGrath | a6c0d8c | 2007-11-01 21:46:22 +0000 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | return outstr; |
| 335 | } |
| 336 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 337 | int |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 338 | printflags(const struct xlat *xlat, int flags, const char *dflt) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 339 | { |
| 340 | int n; |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 341 | const char *sep; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 342 | |
| 343 | if (flags == 0 && xlat->val == 0) { |
Denys Vlasenko | 5940e65 | 2011-09-01 09:55:05 +0200 | [diff] [blame] | 344 | tprints(xlat->str); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 345 | return 1; |
| 346 | } |
| 347 | |
| 348 | sep = ""; |
| 349 | for (n = 0; xlat->str; xlat++) { |
| 350 | if (xlat->val && (flags & xlat->val) == xlat->val) { |
| 351 | tprintf("%s%s", sep, xlat->str); |
| 352 | flags &= ~xlat->val; |
| 353 | sep = "|"; |
| 354 | n++; |
| 355 | } |
| 356 | } |
Roland McGrath | b2dee13 | 2005-06-01 19:02:36 +0000 | [diff] [blame] | 357 | |
| 358 | if (n) { |
| 359 | if (flags) { |
| 360 | tprintf("%s%#x", sep, flags); |
| 361 | n++; |
| 362 | } |
| 363 | } else { |
| 364 | if (flags) { |
| 365 | tprintf("%#x", flags); |
| 366 | if (dflt) |
| 367 | tprintf(" /* %s */", dflt); |
| 368 | } else { |
| 369 | if (dflt) |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 370 | tprints("0"); |
Roland McGrath | b2dee13 | 2005-06-01 19:02:36 +0000 | [diff] [blame] | 371 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 372 | } |
Roland McGrath | b2dee13 | 2005-06-01 19:02:36 +0000 | [diff] [blame] | 373 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 374 | return n; |
| 375 | } |
| 376 | |
| 377 | void |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 378 | printnum(struct tcb *tcp, long addr, const char *fmt) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 379 | { |
Roland McGrath | eb28535 | 2003-01-14 09:59:00 +0000 | [diff] [blame] | 380 | long num; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 381 | |
| 382 | if (!addr) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 383 | tprints("NULL"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 384 | return; |
| 385 | } |
| 386 | if (umove(tcp, addr, &num) < 0) { |
| 387 | tprintf("%#lx", addr); |
| 388 | return; |
| 389 | } |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 390 | tprints("["); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 391 | tprintf(fmt, num); |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 392 | tprints("]"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 393 | } |
| 394 | |
Roland McGrath | 6bc1220 | 2003-11-13 22:32:27 +0000 | [diff] [blame] | 395 | void |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 396 | printnum_int(struct tcb *tcp, long addr, const char *fmt) |
Roland McGrath | 9814a94 | 2005-07-04 23:28:10 +0000 | [diff] [blame] | 397 | { |
| 398 | int num; |
| 399 | |
| 400 | if (!addr) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 401 | tprints("NULL"); |
Roland McGrath | 9814a94 | 2005-07-04 23:28:10 +0000 | [diff] [blame] | 402 | return; |
| 403 | } |
| 404 | if (umove(tcp, addr, &num) < 0) { |
| 405 | tprintf("%#lx", addr); |
| 406 | return; |
| 407 | } |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 408 | tprints("["); |
Roland McGrath | 9814a94 | 2005-07-04 23:28:10 +0000 | [diff] [blame] | 409 | tprintf(fmt, num); |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 410 | tprints("]"); |
Roland McGrath | 9814a94 | 2005-07-04 23:28:10 +0000 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | void |
Dmitry V. Levin | 3138213 | 2011-03-04 05:08:02 +0300 | [diff] [blame] | 414 | printfd(struct tcb *tcp, int fd) |
| 415 | { |
Grant Edwards | 8a08277 | 2011-04-07 20:25:40 +0000 | [diff] [blame] | 416 | const char *p; |
| 417 | |
| 418 | if (show_fd_path && (p = getfdpath(tcp, fd))) |
| 419 | tprintf("%d<%s>", fd, p); |
| 420 | else |
| 421 | tprintf("%d", fd); |
Dmitry V. Levin | 3138213 | 2011-03-04 05:08:02 +0300 | [diff] [blame] | 422 | } |
| 423 | |
| 424 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 425 | printuid(const char *text, unsigned long uid) |
Roland McGrath | 6bc1220 | 2003-11-13 22:32:27 +0000 | [diff] [blame] | 426 | { |
Denys Vlasenko | 5940e65 | 2011-09-01 09:55:05 +0200 | [diff] [blame] | 427 | tprintf((uid == -1) ? "%s%ld" : "%s%lu", text, uid); |
Roland McGrath | 6bc1220 | 2003-11-13 22:32:27 +0000 | [diff] [blame] | 428 | } |
| 429 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 430 | static char path[MAXPATHLEN + 1]; |
| 431 | |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 432 | /* |
| 433 | * Quote string `instr' of length `size' |
| 434 | * Write up to (3 + `size' * 4) bytes to `outstr' buffer. |
| 435 | * If `len' < 0, treat `instr' as a NUL-terminated string |
| 436 | * and quote at most (`size' - 1) bytes. |
| 437 | */ |
Roland McGrath | 6d97032 | 2007-11-01 23:53:59 +0000 | [diff] [blame] | 438 | static int |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 439 | string_quote(const char *instr, char *outstr, int len, int size) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 440 | { |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 441 | const unsigned char *ustr = (const unsigned char *) instr; |
| 442 | char *s = outstr; |
Denys Vlasenko | 8778bff | 2011-08-31 12:22:56 +0200 | [diff] [blame] | 443 | int usehex, c, i, eol; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 444 | |
Denys Vlasenko | 8778bff | 2011-08-31 12:22:56 +0200 | [diff] [blame] | 445 | eol = 0x100; /* this can never match a char */ |
| 446 | if (len < 0) { |
| 447 | size--; |
| 448 | eol = '\0'; |
| 449 | } |
| 450 | |
| 451 | usehex = 0; |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 452 | if (xflag > 1) |
| 453 | usehex = 1; |
| 454 | else if (xflag) { |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 455 | /* Check for presence of symbol which require |
| 456 | to hex-quote the whole string. */ |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 457 | for (i = 0; i < size; ++i) { |
| 458 | c = ustr[i]; |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 459 | /* Check for NUL-terminated string. */ |
Denys Vlasenko | 8778bff | 2011-08-31 12:22:56 +0200 | [diff] [blame] | 460 | if (c == eol) |
| 461 | break; |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 462 | if (!isprint(c) && !isspace(c)) { |
| 463 | usehex = 1; |
| 464 | break; |
| 465 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 466 | } |
| 467 | } |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 468 | |
| 469 | *s++ = '\"'; |
| 470 | |
| 471 | if (usehex) { |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 472 | /* Hex-quote the whole string. */ |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 473 | for (i = 0; i < size; ++i) { |
| 474 | c = ustr[i]; |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 475 | /* Check for NUL-terminated string. */ |
Denys Vlasenko | 8778bff | 2011-08-31 12:22:56 +0200 | [diff] [blame] | 476 | if (c == eol) |
| 477 | goto asciz_ended; |
| 478 | *s++ = '\\'; |
| 479 | *s++ = 'x'; |
| 480 | *s++ = "0123456789abcdef"[c >> 4]; |
| 481 | *s++ = "0123456789abcdef"[c & 0xf]; |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 482 | } |
| 483 | } else { |
| 484 | for (i = 0; i < size; ++i) { |
| 485 | c = ustr[i]; |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 486 | /* Check for NUL-terminated string. */ |
Denys Vlasenko | 8778bff | 2011-08-31 12:22:56 +0200 | [diff] [blame] | 487 | if (c == eol) |
| 488 | goto asciz_ended; |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 489 | switch (c) { |
| 490 | case '\"': case '\\': |
| 491 | *s++ = '\\'; |
| 492 | *s++ = c; |
| 493 | break; |
| 494 | case '\f': |
| 495 | *s++ = '\\'; |
| 496 | *s++ = 'f'; |
| 497 | break; |
| 498 | case '\n': |
| 499 | *s++ = '\\'; |
| 500 | *s++ = 'n'; |
| 501 | break; |
| 502 | case '\r': |
| 503 | *s++ = '\\'; |
| 504 | *s++ = 'r'; |
| 505 | break; |
| 506 | case '\t': |
| 507 | *s++ = '\\'; |
| 508 | *s++ = 't'; |
| 509 | break; |
| 510 | case '\v': |
| 511 | *s++ = '\\'; |
| 512 | *s++ = 'v'; |
| 513 | break; |
| 514 | default: |
| 515 | if (isprint(c)) |
| 516 | *s++ = c; |
Denys Vlasenko | 8778bff | 2011-08-31 12:22:56 +0200 | [diff] [blame] | 517 | else { |
| 518 | /* Print \octal */ |
| 519 | *s++ = '\\'; |
| 520 | if (i + 1 < size |
| 521 | && ustr[i + 1] >= '0' |
| 522 | && ustr[i + 1] <= '9' |
| 523 | ) { |
| 524 | /* Print \ooo */ |
| 525 | *s++ = '0' + (c >> 6); |
| 526 | *s++ = '0' + ((c >> 3) & 0x7); |
| 527 | } else { |
| 528 | /* Print \[[o]o]o */ |
| 529 | if ((c >> 3) != 0) { |
| 530 | if ((c >> 6) != 0) |
| 531 | *s++ = '0' + (c >> 6); |
| 532 | *s++ = '0' + ((c >> 3) & 0x7); |
| 533 | } |
| 534 | } |
| 535 | *s++ = '0' + (c & 0x7); |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 536 | } |
| 537 | break; |
| 538 | } |
| 539 | } |
| 540 | } |
| 541 | |
| 542 | *s++ = '\"'; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 543 | *s = '\0'; |
Roland McGrath | 6d97032 | 2007-11-01 23:53:59 +0000 | [diff] [blame] | 544 | |
Denys Vlasenko | 8778bff | 2011-08-31 12:22:56 +0200 | [diff] [blame] | 545 | /* Return zero if we printed entire ASCIZ string (didn't truncate it) */ |
| 546 | if (len < 0 && ustr[i] == '\0') { |
| 547 | /* We didn't see NUL yet (otherwise we'd jump to 'asciz_ended') |
| 548 | * but next char is NUL. |
| 549 | */ |
| 550 | return 0; |
| 551 | } |
| 552 | |
| 553 | return 1; |
| 554 | |
| 555 | asciz_ended: |
| 556 | *s++ = '\"'; |
| 557 | *s = '\0'; |
| 558 | /* Return zero: we printed entire ASCIZ string (didn't truncate it) */ |
| 559 | return 0; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 560 | } |
| 561 | |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 562 | /* |
| 563 | * Print path string specified by address `addr' and length `n'. |
| 564 | * If path length exceeds `n', append `...' to the output. |
| 565 | */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 566 | void |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 567 | printpathn(struct tcb *tcp, long addr, int n) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 568 | { |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 569 | if (!addr) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 570 | tprints("NULL"); |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 571 | return; |
| 572 | } |
| 573 | |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 574 | /* Cap path length to the path buffer size, |
| 575 | and NUL-terminate the buffer. */ |
| 576 | if (n > sizeof path - 1) |
| 577 | n = sizeof path - 1; |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 578 | path[n] = '\0'; |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 579 | |
| 580 | /* Fetch one byte more to find out whether path length > n. */ |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 581 | if (umovestr(tcp, addr, n + 1, path) < 0) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 582 | tprintf("%#lx", addr); |
| 583 | else { |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 584 | static char outstr[4*(sizeof path - 1) + sizeof "\"...\""]; |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 585 | const char *fmt; |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 586 | int trunc = (path[n] != '\0'); |
| 587 | |
| 588 | if (trunc) |
| 589 | path[n] = '\0'; |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 590 | string_quote(path, outstr, -1, n + 1); |
| 591 | fmt = "%s"; |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 592 | if (trunc) |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 593 | fmt = "%s..."; |
| 594 | tprintf(fmt, outstr); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 595 | } |
| 596 | } |
| 597 | |
| 598 | void |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 599 | printpath(struct tcb *tcp, long addr) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 600 | { |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 601 | printpathn(tcp, addr, sizeof path - 1); |
| 602 | } |
| 603 | |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 604 | /* |
| 605 | * Print string specified by address `addr' and length `len'. |
| 606 | * If `len' < 0, treat the string as a NUL-terminated string. |
| 607 | * If string length exceeds `max_strlen', append `...' to the output. |
| 608 | */ |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 609 | void |
| 610 | printstr(struct tcb *tcp, long addr, int len) |
| 611 | { |
| 612 | static char *str = NULL; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 613 | static char *outstr; |
Roland McGrath | 6d97032 | 2007-11-01 23:53:59 +0000 | [diff] [blame] | 614 | int size; |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 615 | const char *fmt; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 616 | |
| 617 | if (!addr) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 618 | tprints("NULL"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 619 | return; |
| 620 | } |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 621 | /* Allocate static buffers if they are not allocated yet. */ |
Denys Vlasenko | 1d46ba5 | 2011-08-31 14:00:02 +0200 | [diff] [blame] | 622 | if (!str) { |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 623 | str = malloc(max_strlen + 1); |
Denys Vlasenko | 1d46ba5 | 2011-08-31 14:00:02 +0200 | [diff] [blame] | 624 | if (!str) |
| 625 | die_out_of_memory(); |
| 626 | } |
| 627 | if (!outstr) { |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 628 | outstr = malloc(4 * max_strlen + sizeof "\"...\""); |
Denys Vlasenko | 1d46ba5 | 2011-08-31 14:00:02 +0200 | [diff] [blame] | 629 | if (!outstr) |
| 630 | die_out_of_memory(); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 631 | } |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 632 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 633 | if (len < 0) { |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 634 | /* |
| 635 | * Treat as a NUL-terminated string: fetch one byte more |
| 636 | * because string_quote() quotes one byte less. |
| 637 | */ |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 638 | size = max_strlen + 1; |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 639 | str[max_strlen] = '\0'; |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 640 | /* FIXME! umovestr can overwrite the '\0' stored above??? */ |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 641 | if (umovestr(tcp, addr, size, str) < 0) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 642 | tprintf("%#lx", addr); |
| 643 | return; |
| 644 | } |
| 645 | } |
| 646 | else { |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 647 | size = MIN(len, max_strlen); |
Dmitry V. Levin | bea0203 | 2007-10-08 21:48:01 +0000 | [diff] [blame] | 648 | if (umoven(tcp, addr, size, str) < 0) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 649 | tprintf("%#lx", addr); |
| 650 | return; |
| 651 | } |
| 652 | } |
| 653 | |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 654 | fmt = "%s"; |
Dmitry V. Levin | a501f14 | 2008-11-10 23:19:13 +0000 | [diff] [blame] | 655 | if (string_quote(str, outstr, len, size) && |
| 656 | (len < 0 || len > max_strlen)) |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 657 | fmt = "%s..."; |
Roland McGrath | a503dcf | 2007-08-02 02:06:26 +0000 | [diff] [blame] | 658 | |
Denys Vlasenko | 5284557 | 2011-08-31 12:07:38 +0200 | [diff] [blame] | 659 | tprintf(fmt, outstr); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 660 | } |
| 661 | |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 662 | #if HAVE_SYS_UIO_H |
| 663 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 664 | dumpiov(struct tcb *tcp, int len, long addr) |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 665 | { |
Dmitry V. Levin | 4ebb4e3 | 2006-12-13 17:08:08 +0000 | [diff] [blame] | 666 | #if defined(LINUX) && SUPPORTED_PERSONALITIES > 1 |
| 667 | union { |
| 668 | struct { u_int32_t base; u_int32_t len; } *iov32; |
| 669 | struct { u_int64_t base; u_int64_t len; } *iov64; |
| 670 | } iovu; |
| 671 | #define iov iovu.iov64 |
| 672 | #define sizeof_iov \ |
| 673 | (personality_wordsize[current_personality] == 4 \ |
| 674 | ? sizeof(*iovu.iov32) : sizeof(*iovu.iov64)) |
| 675 | #define iov_iov_base(i) \ |
| 676 | (personality_wordsize[current_personality] == 4 \ |
| 677 | ? (u_int64_t) iovu.iov32[i].base : iovu.iov64[i].base) |
| 678 | #define iov_iov_len(i) \ |
| 679 | (personality_wordsize[current_personality] == 4 \ |
| 680 | ? (u_int64_t) iovu.iov32[i].len : iovu.iov64[i].len) |
| 681 | #else |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 682 | struct iovec *iov; |
Dmitry V. Levin | 4ebb4e3 | 2006-12-13 17:08:08 +0000 | [diff] [blame] | 683 | #define sizeof_iov sizeof(*iov) |
| 684 | #define iov_iov_base(i) iov[i].iov_base |
| 685 | #define iov_iov_len(i) iov[i].iov_len |
| 686 | #endif |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 687 | int i; |
Denys Vlasenko | 79a79ea | 2011-09-01 16:35:44 +0200 | [diff] [blame] | 688 | unsigned size; |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 689 | |
Denys Vlasenko | 79a79ea | 2011-09-01 16:35:44 +0200 | [diff] [blame] | 690 | size = sizeof_iov * len; |
| 691 | /* Assuming no sane program has millions of iovs */ |
| 692 | if ((unsigned)len > 1024*1024 /* insane or negative size? */ |
Dmitry V. Levin | 4ebb4e3 | 2006-12-13 17:08:08 +0000 | [diff] [blame] | 693 | || (iov = malloc(size)) == NULL) { |
Denys Vlasenko | 79a79ea | 2011-09-01 16:35:44 +0200 | [diff] [blame] | 694 | fprintf(stderr, "Out of memory\n"); |
| 695 | return; |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 696 | } |
Roland McGrath | aa524c8 | 2005-06-01 19:22:06 +0000 | [diff] [blame] | 697 | if (umoven(tcp, addr, size, (char *) iov) >= 0) { |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 698 | for (i = 0; i < len; i++) { |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 699 | /* include the buffer number to make it easy to |
| 700 | * match up the trace with the source */ |
| 701 | tprintf(" * %lu bytes in buffer %d\n", |
| 702 | (unsigned long)iov_iov_len(i), i); |
| 703 | dumpstr(tcp, (long) iov_iov_base(i), |
| 704 | iov_iov_len(i)); |
| 705 | } |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 706 | } |
Denys Vlasenko | 79a79ea | 2011-09-01 16:35:44 +0200 | [diff] [blame] | 707 | free(iov); |
Dmitry V. Levin | 4ebb4e3 | 2006-12-13 17:08:08 +0000 | [diff] [blame] | 708 | #undef sizeof_iov |
| 709 | #undef iov_iov_base |
| 710 | #undef iov_iov_len |
| 711 | #undef iov |
John Hughes | 1d08dcf | 2001-07-10 13:48:44 +0000 | [diff] [blame] | 712 | } |
| 713 | #endif |
| 714 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 715 | void |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 716 | dumpstr(struct tcb *tcp, long addr, int len) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 717 | { |
| 718 | static int strsize = -1; |
| 719 | static unsigned char *str; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 720 | char *s; |
| 721 | int i, j; |
| 722 | |
| 723 | if (strsize < len) { |
Denys Vlasenko | 5d64581 | 2011-08-20 12:48:18 +0200 | [diff] [blame] | 724 | free(str); |
| 725 | str = malloc(len); |
Denys Vlasenko | 79a79ea | 2011-09-01 16:35:44 +0200 | [diff] [blame] | 726 | if (!str) { |
| 727 | strsize = -1; |
| 728 | fprintf(stderr, "Out of memory\n"); |
| 729 | return; |
| 730 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 731 | strsize = len; |
| 732 | } |
| 733 | |
| 734 | if (umoven(tcp, addr, len, (char *) str) < 0) |
| 735 | return; |
| 736 | |
| 737 | for (i = 0; i < len; i += 16) { |
Denys Vlasenko | 1d46ba5 | 2011-08-31 14:00:02 +0200 | [diff] [blame] | 738 | char outstr[80]; |
| 739 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 740 | s = outstr; |
| 741 | sprintf(s, " | %05x ", i); |
| 742 | s += 9; |
| 743 | for (j = 0; j < 16; j++) { |
| 744 | if (j == 8) |
| 745 | *s++ = ' '; |
| 746 | if (i + j < len) { |
| 747 | sprintf(s, " %02x", str[i + j]); |
| 748 | s += 3; |
| 749 | } |
| 750 | else { |
| 751 | *s++ = ' '; *s++ = ' '; *s++ = ' '; |
| 752 | } |
| 753 | } |
| 754 | *s++ = ' '; *s++ = ' '; |
| 755 | for (j = 0; j < 16; j++) { |
| 756 | if (j == 8) |
| 757 | *s++ = ' '; |
| 758 | if (i + j < len) { |
| 759 | if (isprint(str[i + j])) |
| 760 | *s++ = str[i + j]; |
| 761 | else |
| 762 | *s++ = '.'; |
| 763 | } |
| 764 | else |
| 765 | *s++ = ' '; |
| 766 | } |
| 767 | tprintf("%s |\n", outstr); |
| 768 | } |
| 769 | } |
| 770 | |
| 771 | #define PAGMASK (~(PAGSIZ - 1)) |
| 772 | /* |
| 773 | * move `len' bytes of data from process `pid' |
| 774 | * at address `addr' to our space at `laddr' |
| 775 | */ |
| 776 | int |
Denys Vlasenko | ef2fbf8 | 2009-01-06 21:45:06 +0000 | [diff] [blame] | 777 | umoven(struct tcb *tcp, long addr, int len, char *laddr) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 778 | { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 779 | #ifdef LINUX |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 780 | int pid = tcp->pid; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 781 | int n, m; |
Wichert Akkerman | 5daa028 | 1999-03-15 19:49:42 +0000 | [diff] [blame] | 782 | int started = 0; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 783 | union { |
| 784 | long val; |
| 785 | char x[sizeof(long)]; |
| 786 | } u; |
| 787 | |
| 788 | if (addr & (sizeof(long) - 1)) { |
| 789 | /* addr not a multiple of sizeof(long) */ |
| 790 | n = addr - (addr & -sizeof(long)); /* residue */ |
| 791 | addr &= -sizeof(long); /* residue */ |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 792 | errno = 0; |
| 793 | u.val = ptrace(PTRACE_PEEKDATA, pid, (char *) addr, 0); |
| 794 | if (errno) { |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 795 | /* But if not started, we had a bogus address. */ |
| 796 | if (addr != 0 && errno != EIO && errno != ESRCH) |
| 797 | perror("ptrace: umoven"); |
| 798 | return -1; |
| 799 | } |
Wichert Akkerman | 5daa028 | 1999-03-15 19:49:42 +0000 | [diff] [blame] | 800 | started = 1; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 801 | memcpy(laddr, &u.x[n], m = MIN(sizeof(long) - n, len)); |
| 802 | addr += sizeof(long), laddr += m, len -= m; |
| 803 | } |
| 804 | while (len) { |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 805 | errno = 0; |
| 806 | u.val = ptrace(PTRACE_PEEKDATA, pid, (char *) addr, 0); |
| 807 | if (errno) { |
| 808 | if (started && (errno==EPERM || errno==EIO)) { |
| 809 | /* Ran into 'end of memory' - stupid "printpath" */ |
| 810 | return 0; |
| 811 | } |
| 812 | if (addr != 0 && errno != EIO && errno != ESRCH) |
| 813 | perror("ptrace: umoven"); |
| 814 | return -1; |
| 815 | } |
Wichert Akkerman | 5daa028 | 1999-03-15 19:49:42 +0000 | [diff] [blame] | 816 | started = 1; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 817 | memcpy(laddr, u.x, m = MIN(sizeof(long), len)); |
| 818 | addr += sizeof(long), laddr += m, len -= m; |
| 819 | } |
| 820 | #endif /* LINUX */ |
| 821 | |
| 822 | #ifdef SUNOS4 |
| 823 | int pid = tcp->pid; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 824 | int n; |
| 825 | |
| 826 | while (len) { |
| 827 | n = MIN(len, PAGSIZ); |
| 828 | n = MIN(n, ((addr + PAGSIZ) & PAGMASK) - addr); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 829 | if (ptrace(PTRACE_READDATA, pid, |
| 830 | (char *) addr, len, laddr) < 0) { |
| 831 | if (errno != ESRCH) { |
| 832 | perror("umoven: ptrace(PTRACE_READDATA, ...)"); |
| 833 | abort(); |
| 834 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 835 | return -1; |
| 836 | } |
| 837 | len -= n; |
| 838 | addr += n; |
| 839 | laddr += n; |
| 840 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 841 | #endif /* SUNOS4 */ |
| 842 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 843 | #ifdef USE_PROCFS |
Wichert Akkerman | ea78f0f | 1999-11-29 15:34:02 +0000 | [diff] [blame] | 844 | #ifdef HAVE_MP_PROCFS |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 845 | int fd = tcp->pfd_as; |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 846 | #else |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 847 | int fd = tcp->pfd; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 848 | #endif |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 849 | lseek(fd, addr, SEEK_SET); |
| 850 | if (read(fd, laddr, len) == -1) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 851 | return -1; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 852 | #endif /* USE_PROCFS */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 853 | |
| 854 | return 0; |
| 855 | } |
| 856 | |
| 857 | /* |
| 858 | * like `umove' but make the additional effort of looking |
| 859 | * for a terminating zero byte. |
| 860 | */ |
| 861 | int |
Denys Vlasenko | ef2fbf8 | 2009-01-06 21:45:06 +0000 | [diff] [blame] | 862 | umovestr(struct tcb *tcp, long addr, int len, char *laddr) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 863 | { |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 864 | #ifdef USE_PROCFS |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 865 | #ifdef HAVE_MP_PROCFS |
| 866 | int fd = tcp->pfd_as; |
| 867 | #else |
| 868 | int fd = tcp->pfd; |
| 869 | #endif |
| 870 | /* Some systems (e.g. FreeBSD) can be upset if we read off the |
| 871 | end of valid memory, avoid this by trying to read up |
| 872 | to page boundaries. But we don't know what a page is (and |
| 873 | getpagesize(2) (if it exists) doesn't necessarily return |
| 874 | hardware page size). Assume all pages >= 1024 (a-historical |
| 875 | I know) */ |
| 876 | |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 877 | int page = 1024; /* How to find this? */ |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 878 | int move = page - (addr & (page - 1)); |
| 879 | int left = len; |
| 880 | |
| 881 | lseek(fd, addr, SEEK_SET); |
| 882 | |
| 883 | while (left) { |
Denys Vlasenko | 5d64581 | 2011-08-20 12:48:18 +0200 | [diff] [blame] | 884 | if (move > left) |
| 885 | move = left; |
| 886 | move = read(fd, laddr, move); |
| 887 | if (move <= 0) |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 888 | return left != len ? 0 : -1; |
Denys Vlasenko | 5d64581 | 2011-08-20 12:48:18 +0200 | [diff] [blame] | 889 | if (memchr(laddr, 0, move)) |
| 890 | break; |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 891 | left -= move; |
| 892 | laddr += move; |
| 893 | addr += move; |
| 894 | move = page; |
| 895 | } |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 896 | #else /* !USE_PROCFS */ |
Wichert Akkerman | 5daa028 | 1999-03-15 19:49:42 +0000 | [diff] [blame] | 897 | int started = 0; |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 898 | int pid = tcp->pid; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 899 | int i, n, m; |
| 900 | union { |
| 901 | long val; |
| 902 | char x[sizeof(long)]; |
| 903 | } u; |
| 904 | |
| 905 | if (addr & (sizeof(long) - 1)) { |
| 906 | /* addr not a multiple of sizeof(long) */ |
| 907 | n = addr - (addr & -sizeof(long)); /* residue */ |
| 908 | addr &= -sizeof(long); /* residue */ |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 909 | errno = 0; |
| 910 | u.val = ptrace(PTRACE_PEEKDATA, pid, (char *)addr, 0); |
| 911 | if (errno) { |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 912 | if (addr != 0 && errno != EIO && errno != ESRCH) |
| 913 | perror("umovestr"); |
| 914 | return -1; |
| 915 | } |
Wichert Akkerman | 5daa028 | 1999-03-15 19:49:42 +0000 | [diff] [blame] | 916 | started = 1; |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 917 | memcpy(laddr, &u.x[n], m = MIN(sizeof(long)-n, len)); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 918 | while (n & (sizeof(long) - 1)) |
| 919 | if (u.x[n++] == '\0') |
| 920 | return 0; |
| 921 | addr += sizeof(long), laddr += m, len -= m; |
| 922 | } |
| 923 | while (len) { |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 924 | errno = 0; |
| 925 | u.val = ptrace(PTRACE_PEEKDATA, pid, (char *)addr, 0); |
| 926 | if (errno) { |
| 927 | if (started && (errno==EPERM || errno==EIO)) { |
| 928 | /* Ran into 'end of memory' - stupid "printpath" */ |
| 929 | return 0; |
| 930 | } |
| 931 | if (addr != 0 && errno != EIO && errno != ESRCH) |
| 932 | perror("umovestr"); |
| 933 | return -1; |
| 934 | } |
Wichert Akkerman | 5daa028 | 1999-03-15 19:49:42 +0000 | [diff] [blame] | 935 | started = 1; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 936 | memcpy(laddr, u.x, m = MIN(sizeof(long), len)); |
| 937 | for (i = 0; i < sizeof(long); i++) |
| 938 | if (u.x[i] == '\0') |
| 939 | return 0; |
| 940 | |
| 941 | addr += sizeof(long), laddr += m, len -= m; |
| 942 | } |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 943 | #endif /* !USE_PROCFS */ |
John Hughes | aa09c6b | 2001-05-15 14:53:43 +0000 | [diff] [blame] | 944 | return 0; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 945 | } |
| 946 | |
| 947 | #ifdef LINUX |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 948 | # if !defined (SPARC) && !defined(SPARC64) |
| 949 | # define PTRACE_WRITETEXT 101 |
| 950 | # define PTRACE_WRITEDATA 102 |
| 951 | # endif /* !SPARC && !SPARC64 */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 952 | #endif /* LINUX */ |
| 953 | |
| 954 | #ifdef SUNOS4 |
| 955 | |
| 956 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 957 | uload(int cmd, int pid, long addr, int len, char *laddr) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 958 | { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 959 | int peek, poke; |
| 960 | int n, m; |
| 961 | union { |
| 962 | long val; |
| 963 | char x[sizeof(long)]; |
| 964 | } u; |
| 965 | |
| 966 | if (cmd == PTRACE_WRITETEXT) { |
| 967 | peek = PTRACE_PEEKTEXT; |
| 968 | poke = PTRACE_POKETEXT; |
| 969 | } |
| 970 | else { |
| 971 | peek = PTRACE_PEEKDATA; |
| 972 | poke = PTRACE_POKEDATA; |
| 973 | } |
| 974 | if (addr & (sizeof(long) - 1)) { |
| 975 | /* addr not a multiple of sizeof(long) */ |
| 976 | n = addr - (addr & -sizeof(long)); /* residue */ |
| 977 | addr &= -sizeof(long); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 978 | errno = 0; |
| 979 | u.val = ptrace(peek, pid, (char *) addr, 0); |
| 980 | if (errno) { |
| 981 | perror("uload: POKE"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 982 | return -1; |
| 983 | } |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 984 | memcpy(&u.x[n], laddr, m = MIN(sizeof(long) - n, len)); |
| 985 | if (ptrace(poke, pid, (char *)addr, u.val) < 0) { |
| 986 | perror("uload: POKE"); |
| 987 | return -1; |
| 988 | } |
| 989 | addr += sizeof(long), laddr += m, len -= m; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 990 | } |
| 991 | while (len) { |
| 992 | if (len < sizeof(long)) |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 993 | u.val = ptrace(peek, pid, (char *) addr, 0); |
| 994 | memcpy(u.x, laddr, m = MIN(sizeof(long), len)); |
| 995 | if (ptrace(poke, pid, (char *) addr, u.val) < 0) { |
| 996 | perror("uload: POKE"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 997 | return -1; |
| 998 | } |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 999 | addr += sizeof(long), laddr += m, len -= m; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1000 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1001 | return 0; |
| 1002 | } |
| 1003 | |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1004 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1005 | tload(int pid, int addr, int len, char *laddr) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1006 | { |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1007 | return uload(PTRACE_WRITETEXT, pid, addr, len, laddr); |
| 1008 | } |
| 1009 | |
| 1010 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1011 | dload(int pid, int addr, int len, char *laddr) |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1012 | { |
| 1013 | return uload(PTRACE_WRITEDATA, pid, addr, len, laddr); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1014 | } |
| 1015 | |
| 1016 | #endif /* SUNOS4 */ |
| 1017 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1018 | #ifndef USE_PROCFS |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1019 | |
| 1020 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1021 | upeek(struct tcb *tcp, long off, long *res) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1022 | { |
| 1023 | long val; |
| 1024 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1025 | # ifdef SUNOS4_KERNEL_ARCH_KLUDGE |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1026 | { |
| 1027 | static int is_sun4m = -1; |
| 1028 | struct utsname name; |
| 1029 | |
| 1030 | /* Round up the usual suspects. */ |
| 1031 | if (is_sun4m == -1) { |
| 1032 | if (uname(&name) < 0) { |
| 1033 | perror("upeek: uname?"); |
| 1034 | exit(1); |
| 1035 | } |
| 1036 | is_sun4m = strcmp(name.machine, "sun4m") == 0; |
| 1037 | if (is_sun4m) { |
Roland McGrath | d9f816f | 2004-09-04 03:39:20 +0000 | [diff] [blame] | 1038 | const struct xlat *x; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1039 | |
| 1040 | for (x = struct_user_offsets; x->str; x++) |
| 1041 | x->val += 1024; |
| 1042 | } |
| 1043 | } |
| 1044 | if (is_sun4m) |
| 1045 | off += 1024; |
| 1046 | } |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1047 | # endif /* SUNOS4_KERNEL_ARCH_KLUDGE */ |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1048 | errno = 0; |
Denys Vlasenko | 732d1bf | 2008-12-17 19:21:59 +0000 | [diff] [blame] | 1049 | val = do_ptrace(PTRACE_PEEKUSER, tcp, (char *) off, 0); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1050 | if (val == -1 && errno) { |
| 1051 | if (errno != ESRCH) { |
| 1052 | char buf[60]; |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1053 | sprintf(buf, "upeek: ptrace(PTRACE_PEEKUSER,%d,%lu,0)", tcp->pid, off); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1054 | perror(buf); |
| 1055 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1056 | return -1; |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1057 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1058 | *res = val; |
| 1059 | return 0; |
| 1060 | } |
| 1061 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1062 | #endif /* !USE_PROCFS */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1063 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1064 | void |
Denys Vlasenko | ea0e6e8 | 2009-02-25 17:08:40 +0000 | [diff] [blame] | 1065 | printcall(struct tcb *tcp) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1066 | { |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1067 | #define PRINTBADPC tprintf(sizeof(long) == 4 ? "[????????] " : \ |
| 1068 | sizeof(long) == 8 ? "[????????????????] " : \ |
| 1069 | NULL /* crash */) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1070 | |
| 1071 | #ifdef LINUX |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1072 | # ifdef I386 |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1073 | long eip; |
| 1074 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1075 | if (upeek(tcp, 4*EIP, &eip) < 0) { |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1076 | PRINTBADPC; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1077 | return; |
| 1078 | } |
| 1079 | tprintf("[%08lx] ", eip); |
Roland McGrath | eac26fc | 2005-02-02 02:48:53 +0000 | [diff] [blame] | 1080 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1081 | # elif defined(S390) || defined(S390X) |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 1082 | long psw; |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1083 | if (upeek(tcp, PT_PSWADDR, &psw) < 0) { |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 1084 | PRINTBADPC; |
| 1085 | return; |
| 1086 | } |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1087 | # ifdef S390 |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 1088 | tprintf("[%08lx] ", psw); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1089 | # elif S390X |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 1090 | tprintf("[%16lx] ", psw); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1091 | # endif |
Roland McGrath | eac26fc | 2005-02-02 02:48:53 +0000 | [diff] [blame] | 1092 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1093 | # elif defined(X86_64) |
Michal Ludvig | 0e03550 | 2002-09-23 15:41:01 +0000 | [diff] [blame] | 1094 | long rip; |
| 1095 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1096 | if (upeek(tcp, 8*RIP, &rip) < 0) { |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1097 | PRINTBADPC; |
Michal Ludvig | 0e03550 | 2002-09-23 15:41:01 +0000 | [diff] [blame] | 1098 | return; |
| 1099 | } |
| 1100 | tprintf("[%16lx] ", rip); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1101 | # elif defined(IA64) |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1102 | long ip; |
| 1103 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1104 | if (upeek(tcp, PT_B0, &ip) < 0) { |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1105 | PRINTBADPC; |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1106 | return; |
| 1107 | } |
| 1108 | tprintf("[%08lx] ", ip); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1109 | # elif defined(POWERPC) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1110 | long pc; |
| 1111 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1112 | if (upeek(tcp, sizeof(unsigned long)*PT_NIP, &pc) < 0) { |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 1113 | PRINTBADPC; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1114 | return; |
| 1115 | } |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 1116 | # ifdef POWERPC64 |
| 1117 | tprintf("[%016lx] ", pc); |
| 1118 | # else |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1119 | tprintf("[%08lx] ", pc); |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 1120 | # endif |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1121 | # elif defined(M68K) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1122 | long pc; |
| 1123 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1124 | if (upeek(tcp, 4*PT_PC, &pc) < 0) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 1125 | tprints("[????????] "); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1126 | return; |
| 1127 | } |
| 1128 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1129 | # elif defined(ALPHA) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1130 | long pc; |
| 1131 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1132 | if (upeek(tcp, REG_PC, &pc) < 0) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 1133 | tprints("[????????????????] "); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1134 | return; |
| 1135 | } |
| 1136 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1137 | # elif defined(SPARC) || defined(SPARC64) |
Mike Frysinger | 8566c50 | 2009-10-12 11:05:14 -0400 | [diff] [blame] | 1138 | struct pt_regs regs; |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1139 | if (ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) { |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1140 | PRINTBADPC; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1141 | return; |
| 1142 | } |
Mike Frysinger | 8566c50 | 2009-10-12 11:05:14 -0400 | [diff] [blame] | 1143 | # if defined(SPARC64) |
| 1144 | tprintf("[%08lx] ", regs.tpc); |
| 1145 | # else |
| 1146 | tprintf("[%08lx] ", regs.pc); |
| 1147 | # endif |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1148 | # elif defined(HPPA) |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 1149 | long pc; |
| 1150 | |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1151 | if (upeek(tcp, PT_IAOQ0, &pc) < 0) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 1152 | tprints("[????????] "); |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 1153 | return; |
| 1154 | } |
| 1155 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1156 | # elif defined(MIPS) |
Wichert Akkerman | 75c422b | 2001-04-10 10:22:50 +0000 | [diff] [blame] | 1157 | long pc; |
| 1158 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1159 | if (upeek(tcp, REG_EPC, &pc) < 0) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 1160 | tprints("[????????] "); |
Wichert Akkerman | 75c422b | 2001-04-10 10:22:50 +0000 | [diff] [blame] | 1161 | return; |
| 1162 | } |
| 1163 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1164 | # elif defined(SH) |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 1165 | long pc; |
Wichert Akkerman | ccef637 | 2002-05-01 16:39:22 +0000 | [diff] [blame] | 1166 | |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 1167 | if (upeek(tcp, 4*REG_PC, &pc) < 0) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 1168 | tprints("[????????] "); |
Denys Vlasenko | adedb51 | 2008-12-30 18:47:55 +0000 | [diff] [blame] | 1169 | return; |
| 1170 | } |
| 1171 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1172 | # elif defined(SH64) |
Roland McGrath | e1e584b | 2003-06-02 19:18:58 +0000 | [diff] [blame] | 1173 | long pc; |
| 1174 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1175 | if (upeek(tcp, REG_PC, &pc) < 0) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 1176 | tprints("[????????????????] "); |
Roland McGrath | e1e584b | 2003-06-02 19:18:58 +0000 | [diff] [blame] | 1177 | return; |
| 1178 | } |
| 1179 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1180 | # elif defined(ARM) |
Roland McGrath | ef38868 | 2003-06-03 23:28:59 +0000 | [diff] [blame] | 1181 | long pc; |
Roland McGrath | e1e584b | 2003-06-02 19:18:58 +0000 | [diff] [blame] | 1182 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1183 | if (upeek(tcp, 4*15, &pc) < 0) { |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1184 | PRINTBADPC; |
Roland McGrath | ef38868 | 2003-06-03 23:28:59 +0000 | [diff] [blame] | 1185 | return; |
| 1186 | } |
| 1187 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 5ae2b7c | 2009-02-27 20:32:52 +0000 | [diff] [blame] | 1188 | # elif defined(AVR32) |
| 1189 | long pc; |
| 1190 | |
| 1191 | if (upeek(tcp, REG_PC, &pc) < 0) { |
Denys Vlasenko | 60fe8c1 | 2011-09-01 10:00:28 +0200 | [diff] [blame] | 1192 | tprints("[????????] "); |
Denys Vlasenko | 5ae2b7c | 2009-02-27 20:32:52 +0000 | [diff] [blame] | 1193 | return; |
| 1194 | } |
| 1195 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1196 | # elif defined(BFIN) |
Dmitry V. Levin | 87ea1f4 | 2008-11-10 22:21:41 +0000 | [diff] [blame] | 1197 | long pc; |
| 1198 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1199 | if (upeek(tcp, PT_PC, &pc) < 0) { |
Dmitry V. Levin | 87ea1f4 | 2008-11-10 22:21:41 +0000 | [diff] [blame] | 1200 | PRINTBADPC; |
| 1201 | return; |
| 1202 | } |
| 1203 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | ea0e6e8 | 2009-02-25 17:08:40 +0000 | [diff] [blame] | 1204 | #elif defined(CRISV10) |
| 1205 | long pc; |
| 1206 | |
Edgar E. Iglesias | eeb9ce3 | 2009-10-05 14:41:02 +0000 | [diff] [blame] | 1207 | if (upeek(tcp, 4*PT_IRP, &pc) < 0) { |
Denys Vlasenko | ea0e6e8 | 2009-02-25 17:08:40 +0000 | [diff] [blame] | 1208 | PRINTBADPC; |
| 1209 | return; |
| 1210 | } |
| 1211 | tprintf("[%08lx] ", pc); |
| 1212 | #elif defined(CRISV32) |
| 1213 | long pc; |
| 1214 | |
Edgar E. Iglesias | eeb9ce3 | 2009-10-05 14:41:02 +0000 | [diff] [blame] | 1215 | if (upeek(tcp, 4*PT_ERP, &pc) < 0) { |
Denys Vlasenko | ea0e6e8 | 2009-02-25 17:08:40 +0000 | [diff] [blame] | 1216 | PRINTBADPC; |
| 1217 | return; |
| 1218 | } |
| 1219 | tprintf("[%08lx] ", pc); |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1220 | # endif /* architecture */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1221 | #endif /* LINUX */ |
| 1222 | |
| 1223 | #ifdef SUNOS4 |
| 1224 | struct regs regs; |
| 1225 | |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1226 | if (ptrace(PTRACE_GETREGS, tcp->pid, (char *) ®s, 0) < 0) { |
| 1227 | perror("printcall: ptrace(PTRACE_GETREGS, ...)"); |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1228 | PRINTBADPC; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1229 | return; |
| 1230 | } |
| 1231 | tprintf("[%08x] ", regs.r_o7); |
| 1232 | #endif /* SUNOS4 */ |
| 1233 | |
| 1234 | #ifdef SVR4 |
| 1235 | /* XXX */ |
Roland McGrath | 7a91883 | 2005-02-02 20:55:23 +0000 | [diff] [blame] | 1236 | PRINTBADPC; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1237 | #endif |
| 1238 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1239 | #ifdef FREEBSD |
| 1240 | struct reg regs; |
| 1241 | pread(tcp->pfd_reg, ®s, sizeof(regs), 0); |
| 1242 | tprintf("[%08x] ", regs.r_eip); |
| 1243 | #endif /* FREEBSD */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1244 | } |
| 1245 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1246 | |
| 1247 | /* |
| 1248 | * These #if's are huge, please indent them correctly. |
| 1249 | * It's easy to get confused otherwise. |
| 1250 | */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1251 | #ifndef USE_PROCFS |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1252 | |
Denys Vlasenko | e7c9024 | 2011-06-22 00:09:25 +0200 | [diff] [blame] | 1253 | # ifdef LINUX |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1254 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1255 | # include "syscall.h" |
Roland McGrath | 3291ef2 | 2008-05-20 00:34:34 +0000 | [diff] [blame] | 1256 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1257 | # include <sys/syscall.h> |
| 1258 | # ifndef CLONE_PTRACE |
| 1259 | # define CLONE_PTRACE 0x00002000 |
| 1260 | # endif |
| 1261 | # ifndef CLONE_VFORK |
| 1262 | # define CLONE_VFORK 0x00004000 |
| 1263 | # endif |
| 1264 | # ifndef CLONE_VM |
| 1265 | # define CLONE_VM 0x00000100 |
| 1266 | # endif |
| 1267 | # ifndef CLONE_STOPPED |
| 1268 | # define CLONE_STOPPED 0x02000000 |
| 1269 | # endif |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1270 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1271 | # ifdef IA64 |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1272 | |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1273 | /* We don't have fork()/vfork() syscalls on ia64 itself, but the ia32 |
| 1274 | subsystem has them for x86... */ |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1275 | # define SYS_fork 2 |
| 1276 | # define SYS_vfork 190 |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1277 | |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1278 | typedef unsigned long *arg_setup_state; |
| 1279 | |
| 1280 | static int |
| 1281 | arg_setup(struct tcb *tcp, arg_setup_state *state) |
| 1282 | { |
Jan Kratochvil | 1f94271 | 2008-08-06 21:38:52 +0000 | [diff] [blame] | 1283 | unsigned long cfm, sof, sol; |
| 1284 | long bsp; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1285 | |
Jan Kratochvil | 1f94271 | 2008-08-06 21:38:52 +0000 | [diff] [blame] | 1286 | if (ia32) { |
| 1287 | /* Satisfy a false GCC warning. */ |
| 1288 | *state = NULL; |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1289 | return 0; |
Jan Kratochvil | 1f94271 | 2008-08-06 21:38:52 +0000 | [diff] [blame] | 1290 | } |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1291 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1292 | if (upeek(tcp, PT_AR_BSP, &bsp) < 0) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1293 | return -1; |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1294 | if (upeek(tcp, PT_CFM, (long *) &cfm) < 0) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1295 | return -1; |
| 1296 | |
| 1297 | sof = (cfm >> 0) & 0x7f; |
| 1298 | sol = (cfm >> 7) & 0x7f; |
Jan Kratochvil | 1f94271 | 2008-08-06 21:38:52 +0000 | [diff] [blame] | 1299 | bsp = (long) ia64_rse_skip_regs((unsigned long *) bsp, -sof + sol); |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1300 | |
Jan Kratochvil | 1f94271 | 2008-08-06 21:38:52 +0000 | [diff] [blame] | 1301 | *state = (unsigned long *) bsp; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1302 | return 0; |
| 1303 | } |
| 1304 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1305 | # define arg_finish_change(tcp, state) 0 |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1306 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1307 | # ifdef SYS_fork |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1308 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1309 | get_arg0(struct tcb *tcp, arg_setup_state *state, long *valp) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1310 | { |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1311 | int ret; |
| 1312 | |
| 1313 | if (ia32) |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1314 | ret = upeek(tcp, PT_R11, valp); |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1315 | else |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1316 | ret = umoven(tcp, |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1317 | (unsigned long) ia64_rse_skip_regs(*state, 0), |
| 1318 | sizeof(long), (void *) valp); |
| 1319 | return ret; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1320 | } |
| 1321 | |
| 1322 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1323 | get_arg1(struct tcb *tcp, arg_setup_state *state, long *valp) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1324 | { |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1325 | int ret; |
| 1326 | |
| 1327 | if (ia32) |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1328 | ret = upeek(tcp, PT_R9, valp); |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1329 | else |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1330 | ret = umoven(tcp, |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1331 | (unsigned long) ia64_rse_skip_regs(*state, 1), |
| 1332 | sizeof(long), (void *) valp); |
| 1333 | return ret; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1334 | } |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1335 | # endif |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1336 | |
| 1337 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1338 | set_arg0(struct tcb *tcp, arg_setup_state *state, long val) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1339 | { |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1340 | int req = PTRACE_POKEDATA; |
| 1341 | void *ap; |
| 1342 | |
| 1343 | if (ia32) { |
| 1344 | ap = (void *) (intptr_t) PT_R11; /* r11 == EBX */ |
| 1345 | req = PTRACE_POKEUSER; |
| 1346 | } else |
| 1347 | ap = ia64_rse_skip_regs(*state, 0); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1348 | errno = 0; |
| 1349 | ptrace(req, tcp->pid, ap, val); |
| 1350 | return errno ? -1 : 0; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1351 | } |
| 1352 | |
| 1353 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1354 | set_arg1(struct tcb *tcp, arg_setup_state *state, long val) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1355 | { |
Roland McGrath | 08267b8 | 2004-02-20 22:56:43 +0000 | [diff] [blame] | 1356 | int req = PTRACE_POKEDATA; |
| 1357 | void *ap; |
| 1358 | |
| 1359 | if (ia32) { |
| 1360 | ap = (void *) (intptr_t) PT_R9; /* r9 == ECX */ |
| 1361 | req = PTRACE_POKEUSER; |
| 1362 | } else |
| 1363 | ap = ia64_rse_skip_regs(*state, 1); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1364 | errno = 0; |
| 1365 | ptrace(req, tcp->pid, ap, val); |
| 1366 | return errno ? -1 : 0; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1367 | } |
| 1368 | |
Roland McGrath | b659f87 | 2008-07-18 01:19:36 +0000 | [diff] [blame] | 1369 | /* ia64 does not return the input arguments from functions (and syscalls) |
| 1370 | according to ia64 RSE (Register Stack Engine) behavior. */ |
| 1371 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1372 | # define restore_arg0(tcp, state, val) ((void) (state), 0) |
| 1373 | # define restore_arg1(tcp, state, val) ((void) (state), 0) |
Roland McGrath | b659f87 | 2008-07-18 01:19:36 +0000 | [diff] [blame] | 1374 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1375 | # elif defined (SPARC) || defined (SPARC64) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1376 | |
Mike Frysinger | 8566c50 | 2009-10-12 11:05:14 -0400 | [diff] [blame] | 1377 | typedef struct pt_regs arg_setup_state; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1378 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1379 | # define arg_setup(tcp, state) \ |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1380 | (ptrace(PTRACE_GETREGS, tcp->pid, (char *) (state), 0)) |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1381 | # define arg_finish_change(tcp, state) \ |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1382 | (ptrace(PTRACE_SETREGS, tcp->pid, (char *) (state), 0)) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1383 | |
Mike Frysinger | 8566c50 | 2009-10-12 11:05:14 -0400 | [diff] [blame] | 1384 | # define get_arg0(tcp, state, valp) (*(valp) = (state)->u_regs[U_REG_O0], 0) |
| 1385 | # define get_arg1(tcp, state, valp) (*(valp) = (state)->u_regs[U_REG_O1], 0) |
| 1386 | # define set_arg0(tcp, state, val) ((state)->u_regs[U_REG_O0] = (val), 0) |
| 1387 | # define set_arg1(tcp, state, val) ((state)->u_regs[U_REG_O1] = (val), 0) |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1388 | # define restore_arg0(tcp, state, val) 0 |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1389 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1390 | # else /* other architectures */ |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1391 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1392 | # if defined S390 || defined S390X |
Roland McGrath | 7b30822 | 2003-01-20 09:04:36 +0000 | [diff] [blame] | 1393 | /* Note: this is only true for the `clone' system call, which handles |
| 1394 | arguments specially. We could as well say that its first two arguments |
| 1395 | are swapped relative to other architectures, but that would just be |
| 1396 | another #ifdef in the calls. */ |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1397 | # define arg0_offset PT_GPR3 |
| 1398 | # define arg1_offset PT_ORIGGPR2 |
| 1399 | # define restore_arg0(tcp, state, val) ((void) (state), 0) |
| 1400 | # define restore_arg1(tcp, state, val) ((void) (state), 0) |
| 1401 | # define arg0_index 1 |
| 1402 | # define arg1_index 0 |
| 1403 | # elif defined (ALPHA) || defined (MIPS) |
| 1404 | # define arg0_offset REG_A0 |
| 1405 | # define arg1_offset (REG_A0+1) |
Denys Vlasenko | 5ae2b7c | 2009-02-27 20:32:52 +0000 | [diff] [blame] | 1406 | # elif defined (AVR32) |
| 1407 | # define arg0_offset (REG_R12) |
| 1408 | # define arg1_offset (REG_R11) |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1409 | # elif defined (POWERPC) |
| 1410 | # define arg0_offset (sizeof(unsigned long)*PT_R3) |
| 1411 | # define arg1_offset (sizeof(unsigned long)*PT_R4) |
| 1412 | # define restore_arg0(tcp, state, val) ((void) (state), 0) |
| 1413 | # elif defined (HPPA) |
| 1414 | # define arg0_offset PT_GR26 |
| 1415 | # define arg1_offset (PT_GR26-4) |
| 1416 | # elif defined (X86_64) |
| 1417 | # define arg0_offset ((long)(8*(current_personality ? RBX : RDI))) |
| 1418 | # define arg1_offset ((long)(8*(current_personality ? RCX : RSI))) |
| 1419 | # elif defined (SH) |
| 1420 | # define arg0_offset (4*(REG_REG0+4)) |
| 1421 | # define arg1_offset (4*(REG_REG0+5)) |
| 1422 | # elif defined (SH64) |
| 1423 | /* ABI defines arg0 & 1 in r2 & r3 */ |
| 1424 | # define arg0_offset (REG_OFFSET+16) |
| 1425 | # define arg1_offset (REG_OFFSET+24) |
| 1426 | # define restore_arg0(tcp, state, val) 0 |
Denys Vlasenko | ea0e6e8 | 2009-02-25 17:08:40 +0000 | [diff] [blame] | 1427 | # elif defined CRISV10 || defined CRISV32 |
| 1428 | # define arg0_offset (4*PT_R11) |
| 1429 | # define arg1_offset (4*PT_ORIG_R10) |
| 1430 | # define restore_arg0(tcp, state, val) 0 |
| 1431 | # define restore_arg1(tcp, state, val) 0 |
| 1432 | # define arg0_index 1 |
| 1433 | # define arg1_index 0 |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1434 | # else |
| 1435 | # define arg0_offset 0 |
| 1436 | # define arg1_offset 4 |
| 1437 | # if defined ARM |
| 1438 | # define restore_arg0(tcp, state, val) 0 |
| 1439 | # endif |
| 1440 | # endif |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1441 | |
| 1442 | typedef int arg_setup_state; |
| 1443 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1444 | # define arg_setup(tcp, state) (0) |
| 1445 | # define arg_finish_change(tcp, state) 0 |
| 1446 | # define get_arg0(tcp, cookie, valp) \ |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1447 | (upeek((tcp), arg0_offset, (valp))) |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1448 | # define get_arg1(tcp, cookie, valp) \ |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1449 | (upeek((tcp), arg1_offset, (valp))) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1450 | |
| 1451 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1452 | set_arg0(struct tcb *tcp, void *cookie, long val) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1453 | { |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1454 | return ptrace(PTRACE_POKEUSER, tcp->pid, (char*)arg0_offset, val); |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1455 | } |
| 1456 | |
| 1457 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1458 | set_arg1(struct tcb *tcp, void *cookie, long val) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1459 | { |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1460 | return ptrace(PTRACE_POKEUSER, tcp->pid, (char*)arg1_offset, val); |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1461 | } |
| 1462 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1463 | # endif /* architectures */ |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1464 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1465 | # ifndef restore_arg0 |
| 1466 | # define restore_arg0(tcp, state, val) set_arg0((tcp), (state), (val)) |
| 1467 | # endif |
| 1468 | # ifndef restore_arg1 |
| 1469 | # define restore_arg1(tcp, state, val) set_arg1((tcp), (state), (val)) |
| 1470 | # endif |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1471 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1472 | # ifndef arg0_index |
| 1473 | # define arg0_index 0 |
| 1474 | # define arg1_index 1 |
| 1475 | # endif |
Roland McGrath | 90d0afd | 2004-03-01 21:05:16 +0000 | [diff] [blame] | 1476 | |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1477 | int |
Denys Vlasenko | 418d66a | 2009-01-17 01:52:54 +0000 | [diff] [blame] | 1478 | setbpt(struct tcb *tcp) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1479 | { |
Roland McGrath | 3291ef2 | 2008-05-20 00:34:34 +0000 | [diff] [blame] | 1480 | static int clone_scno[SUPPORTED_PERSONALITIES] = { SYS_clone }; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1481 | arg_setup_state state; |
| 1482 | |
| 1483 | if (tcp->flags & TCB_BPTSET) { |
| 1484 | fprintf(stderr, "PANIC: TCB already set in pid %u\n", tcp->pid); |
| 1485 | return -1; |
| 1486 | } |
| 1487 | |
Roland McGrath | 3291ef2 | 2008-05-20 00:34:34 +0000 | [diff] [blame] | 1488 | /* |
| 1489 | * It's a silly kludge to initialize this with a search at runtime. |
| 1490 | * But it's better than maintaining another magic thing in the |
| 1491 | * godforsaken tables. |
| 1492 | */ |
| 1493 | if (clone_scno[current_personality] == 0) { |
| 1494 | int i; |
| 1495 | for (i = 0; i < nsyscalls; ++i) |
| 1496 | if (sysent[i].sys_func == sys_clone) { |
| 1497 | clone_scno[current_personality] = i; |
| 1498 | break; |
| 1499 | } |
| 1500 | } |
| 1501 | |
Roland McGrath | 76989d7 | 2005-06-07 23:21:31 +0000 | [diff] [blame] | 1502 | switch (known_scno(tcp)) { |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1503 | # ifdef SYS_vfork |
Roland McGrath | 9383c6c | 2003-01-18 00:19:31 +0000 | [diff] [blame] | 1504 | case SYS_vfork: |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1505 | # endif |
| 1506 | # ifdef SYS_fork |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1507 | case SYS_fork: |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1508 | # endif |
| 1509 | # if defined SYS_fork || defined SYS_vfork |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1510 | if (arg_setup(tcp, &state) < 0 |
| 1511 | || get_arg0(tcp, &state, &tcp->inst[0]) < 0 |
| 1512 | || get_arg1(tcp, &state, &tcp->inst[1]) < 0 |
Roland McGrath | 3291ef2 | 2008-05-20 00:34:34 +0000 | [diff] [blame] | 1513 | || change_syscall(tcp, clone_scno[current_personality]) < 0 |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1514 | || set_arg0(tcp, &state, CLONE_PTRACE|SIGCHLD) < 0 |
| 1515 | || set_arg1(tcp, &state, 0) < 0 |
| 1516 | || arg_finish_change(tcp, &state) < 0) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1517 | return -1; |
Roland McGrath | c9dc3c1 | 2004-03-01 20:57:09 +0000 | [diff] [blame] | 1518 | tcp->u_arg[arg0_index] = CLONE_PTRACE|SIGCHLD; |
| 1519 | tcp->u_arg[arg1_index] = 0; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1520 | tcp->flags |= TCB_BPTSET; |
| 1521 | return 0; |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1522 | # endif |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1523 | |
Denys Vlasenko | c133bf0 | 2011-06-23 21:57:54 +0200 | [diff] [blame] | 1524 | case SYS_clone: ; |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1525 | # ifdef SYS_clone2 |
Denys Vlasenko | c133bf0 | 2011-06-23 21:57:54 +0200 | [diff] [blame] | 1526 | case SYS_clone2: ; |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1527 | # endif |
Jan Kratochvil | 8fc9575 | 2008-08-06 21:43:35 +0000 | [diff] [blame] | 1528 | /* ia64 calls directly `clone (CLONE_VFORK | CLONE_VM)' |
| 1529 | contrary to x86 SYS_vfork above. Even on x86 we turn the |
| 1530 | vfork semantics into plain fork - each application must not |
| 1531 | depend on the vfork specifics according to POSIX. We would |
| 1532 | hang waiting for the parent resume otherwise. We need to |
| 1533 | clear also CLONE_VM but only in the CLONE_VFORK case as |
| 1534 | otherwise we would break pthread_create. */ |
| 1535 | |
Denys Vlasenko | c133bf0 | 2011-06-23 21:57:54 +0200 | [diff] [blame] | 1536 | long new_arg0 = (tcp->u_arg[arg0_index] | CLONE_PTRACE); |
| 1537 | if (new_arg0 & CLONE_VFORK) |
| 1538 | new_arg0 &= ~(unsigned long)(CLONE_VFORK | CLONE_VM); |
| 1539 | if (arg_setup(tcp, &state) < 0 |
| 1540 | || set_arg0(tcp, &state, new_arg0) < 0 |
| 1541 | || arg_finish_change(tcp, &state) < 0) |
Denys Vlasenko | 5ae2b7c | 2009-02-27 20:32:52 +0000 | [diff] [blame] | 1542 | return -1; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1543 | tcp->flags |= TCB_BPTSET; |
Roland McGrath | c9dc3c1 | 2004-03-01 20:57:09 +0000 | [diff] [blame] | 1544 | tcp->inst[0] = tcp->u_arg[arg0_index]; |
| 1545 | tcp->inst[1] = tcp->u_arg[arg1_index]; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1546 | return 0; |
| 1547 | |
| 1548 | default: |
| 1549 | fprintf(stderr, "PANIC: setbpt for syscall %ld on %u???\n", |
| 1550 | tcp->scno, tcp->pid); |
| 1551 | break; |
| 1552 | } |
| 1553 | |
| 1554 | return -1; |
| 1555 | } |
| 1556 | |
| 1557 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1558 | clearbpt(struct tcb *tcp) |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1559 | { |
| 1560 | arg_setup_state state; |
Denys Vlasenko | b63256e | 2011-06-07 12:13:24 +0200 | [diff] [blame] | 1561 | if (arg_setup(tcp, &state) < 0 |
| 1562 | || restore_arg0(tcp, &state, tcp->inst[0]) < 0 |
| 1563 | || restore_arg1(tcp, &state, tcp->inst[1]) < 0 |
| 1564 | || arg_finish_change(tcp, &state)) |
Denys Vlasenko | c133bf0 | 2011-06-23 21:57:54 +0200 | [diff] [blame] | 1565 | if (errno != ESRCH) |
| 1566 | return -1; |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1567 | tcp->flags &= ~TCB_BPTSET; |
| 1568 | return 0; |
| 1569 | } |
| 1570 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1571 | # else /* !defined LINUX */ |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1572 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1573 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1574 | setbpt(struct tcb *tcp) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1575 | { |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1576 | # ifdef SUNOS4 |
| 1577 | # ifdef SPARC /* This code is slightly sparc specific */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1578 | |
Wichert Akkerman | e6f876c | 1999-06-22 15:28:30 +0000 | [diff] [blame] | 1579 | struct regs regs; |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1580 | # define BPT 0x91d02001 /* ta 1 */ |
| 1581 | # define LOOP 0x10800000 /* ba 0 */ |
| 1582 | # define LOOPA 0x30800000 /* ba,a 0 */ |
| 1583 | # define NOP 0x01000000 |
| 1584 | # if LOOPA |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1585 | static int loopdeloop[1] = {LOOPA}; |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1586 | # else |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1587 | static int loopdeloop[2] = {LOOP, NOP}; |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1588 | # endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1589 | |
| 1590 | if (tcp->flags & TCB_BPTSET) { |
| 1591 | fprintf(stderr, "PANIC: TCB already set in pid %u\n", tcp->pid); |
| 1592 | return -1; |
| 1593 | } |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1594 | if (ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) { |
| 1595 | perror("setbpt: ptrace(PTRACE_GETREGS, ...)"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1596 | return -1; |
| 1597 | } |
| 1598 | tcp->baddr = regs.r_o7 + 8; |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1599 | if (ptrace(PTRACE_READTEXT, tcp->pid, (char *)tcp->baddr, |
| 1600 | sizeof tcp->inst, (char *)tcp->inst) < 0) { |
| 1601 | perror("setbpt: ptrace(PTRACE_READTEXT, ...)"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1602 | return -1; |
| 1603 | } |
| 1604 | |
| 1605 | /* |
| 1606 | * XXX - BRUTAL MODE ON |
| 1607 | * We cannot set a real BPT in the child, since it will not be |
| 1608 | * traced at the moment it will reach the trap and would probably |
| 1609 | * die with a core dump. |
| 1610 | * Thus, we are force our way in by taking out two instructions |
| 1611 | * and insert an eternal loop in stead, in expectance of the SIGSTOP |
| 1612 | * generated by out PTRACE_ATTACH. |
| 1613 | * Of cause, if we evaporate ourselves in the middle of all this... |
| 1614 | */ |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1615 | if (ptrace(PTRACE_WRITETEXT, tcp->pid, (char *) tcp->baddr, |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1616 | sizeof loopdeloop, (char *) loopdeloop) < 0) { |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1617 | perror("setbpt: ptrace(PTRACE_WRITETEXT, ...)"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1618 | return -1; |
| 1619 | } |
| 1620 | tcp->flags |= TCB_BPTSET; |
| 1621 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1622 | # endif /* SPARC */ |
| 1623 | # endif /* SUNOS4 */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1624 | |
| 1625 | return 0; |
| 1626 | } |
| 1627 | |
| 1628 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1629 | clearbpt(struct tcb *tcp) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1630 | { |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1631 | # ifdef SUNOS4 |
| 1632 | # ifdef SPARC |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1633 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1634 | # if !LOOPA |
Wichert Akkerman | e6f876c | 1999-06-22 15:28:30 +0000 | [diff] [blame] | 1635 | struct regs regs; |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1636 | # endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1637 | |
| 1638 | if (!(tcp->flags & TCB_BPTSET)) { |
| 1639 | fprintf(stderr, "PANIC: TCB not set in pid %u\n", tcp->pid); |
| 1640 | return -1; |
| 1641 | } |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1642 | if (ptrace(PTRACE_WRITETEXT, tcp->pid, (char *) tcp->baddr, |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1643 | sizeof tcp->inst, (char *) tcp->inst) < 0) { |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1644 | perror("clearbtp: ptrace(PTRACE_WRITETEXT, ...)"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1645 | return -1; |
| 1646 | } |
| 1647 | tcp->flags &= ~TCB_BPTSET; |
| 1648 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1649 | # if !LOOPA |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1650 | /* |
| 1651 | * Since we don't have a single instruction breakpoint, we may have |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1652 | * to adjust the program counter after removing our `breakpoint'. |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1653 | */ |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1654 | if (ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) { |
| 1655 | perror("clearbpt: ptrace(PTRACE_GETREGS, ...)"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1656 | return -1; |
| 1657 | } |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1658 | if ((regs.r_pc < tcp->baddr) || |
| 1659 | (regs.r_pc > tcp->baddr + 4)) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1660 | /* The breakpoint has not been reached yet */ |
| 1661 | if (debug) |
| 1662 | fprintf(stderr, |
| 1663 | "NOTE: PC not at bpt (pc %#x baddr %#x)\n", |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1664 | regs.r_pc, tcp->baddr); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1665 | return 0; |
| 1666 | } |
| 1667 | if (regs.r_pc != tcp->baddr) |
| 1668 | if (debug) |
| 1669 | fprintf(stderr, "NOTE: PC adjusted (%#x -> %#x\n", |
| 1670 | regs.r_pc, tcp->baddr); |
| 1671 | |
| 1672 | regs.r_pc = tcp->baddr; |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1673 | if (ptrace(PTRACE_SETREGS, tcp->pid, (char *)®s, 0) < 0) { |
| 1674 | perror("clearbpt: ptrace(PTRACE_SETREGS, ...)"); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1675 | return -1; |
| 1676 | } |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1677 | # endif /* LOOPA */ |
| 1678 | # endif /* SPARC */ |
| 1679 | # endif /* SUNOS4 */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1680 | |
| 1681 | return 0; |
| 1682 | } |
| 1683 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1684 | # endif /* !defined LINUX */ |
Roland McGrath | d81f1d9 | 2003-01-09 06:53:34 +0000 | [diff] [blame] | 1685 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1686 | #endif /* !USE_PROCFS */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1687 | |
Denys Vlasenko | 3bb7cd6 | 2009-02-09 18:55:59 +0000 | [diff] [blame] | 1688 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1689 | #ifdef SUNOS4 |
| 1690 | |
| 1691 | static int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1692 | getex(struct tcb *tcp, struct exec *hdr) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1693 | { |
| 1694 | int n; |
| 1695 | |
| 1696 | for (n = 0; n < sizeof *hdr; n += 4) { |
| 1697 | long res; |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1698 | if (upeek(tcp, uoff(u_exdata) + n, &res) < 0) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1699 | return -1; |
| 1700 | memcpy(((char *) hdr) + n, &res, 4); |
| 1701 | } |
| 1702 | if (debug) { |
| 1703 | fprintf(stderr, "[struct exec: magic: %o version %u Mach %o\n", |
| 1704 | hdr->a_magic, hdr->a_toolversion, hdr->a_machtype); |
| 1705 | fprintf(stderr, "Text %lu Data %lu Bss %lu Syms %lu Entry %#lx]\n", |
| 1706 | hdr->a_text, hdr->a_data, hdr->a_bss, hdr->a_syms, hdr->a_entry); |
| 1707 | } |
| 1708 | return 0; |
| 1709 | } |
| 1710 | |
| 1711 | int |
Denys Vlasenko | 1201426 | 2011-05-30 14:00:14 +0200 | [diff] [blame] | 1712 | fixvfork(struct tcb *tcp) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1713 | { |
| 1714 | int pid = tcp->pid; |
| 1715 | /* |
| 1716 | * Change `vfork' in a freshly exec'ed dynamically linked |
| 1717 | * executable's (internal) symbol table to plain old `fork' |
| 1718 | */ |
| 1719 | |
| 1720 | struct exec hdr; |
| 1721 | struct link_dynamic dyn; |
| 1722 | struct link_dynamic_2 ld; |
| 1723 | char *strtab, *cp; |
| 1724 | |
Denys Vlasenko | 932fc7d | 2008-12-16 18:18:40 +0000 | [diff] [blame] | 1725 | if (getex(tcp, &hdr) < 0) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1726 | return -1; |
| 1727 | if (!hdr.a_dynamic) |
| 1728 | return -1; |
| 1729 | |
| 1730 | if (umove(tcp, (int) N_DATADDR(hdr), &dyn) < 0) { |
| 1731 | fprintf(stderr, "Cannot read DYNAMIC\n"); |
| 1732 | return -1; |
| 1733 | } |
| 1734 | if (umove(tcp, (int) dyn.ld_un.ld_2, &ld) < 0) { |
| 1735 | fprintf(stderr, "Cannot read link_dynamic_2\n"); |
| 1736 | return -1; |
| 1737 | } |
Denys Vlasenko | 5d64581 | 2011-08-20 12:48:18 +0200 | [diff] [blame] | 1738 | strtab = malloc((unsigned)ld.ld_symb_size); |
Denys Vlasenko | 1d46ba5 | 2011-08-31 14:00:02 +0200 | [diff] [blame] | 1739 | if (!strtab) |
| 1740 | die_out_of_memory(); |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1741 | if (umoven(tcp, (int)ld.ld_symbols+(int)N_TXTADDR(hdr), |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1742 | (int)ld.ld_symb_size, strtab) < 0) |
| 1743 | goto err; |
| 1744 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1745 | for (cp = strtab; cp < strtab + ld.ld_symb_size; ) { |
| 1746 | if (strcmp(cp, "_vfork") == 0) { |
| 1747 | if (debug) |
| 1748 | fprintf(stderr, "fixvfork: FOUND _vfork\n"); |
| 1749 | strcpy(cp, "_fork"); |
| 1750 | break; |
| 1751 | } |
| 1752 | cp += strlen(cp)+1; |
| 1753 | } |
| 1754 | if (cp < strtab + ld.ld_symb_size) |
| 1755 | /* |
| 1756 | * Write entire symbol table back to avoid |
| 1757 | * memory alignment bugs in ptrace |
| 1758 | */ |
Roland McGrath | eb9e2e8 | 2009-06-02 16:49:22 -0700 | [diff] [blame] | 1759 | if (tload(pid, (int)ld.ld_symbols+(int)N_TXTADDR(hdr), |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1760 | (int)ld.ld_symb_size, strtab) < 0) |
| 1761 | goto err; |
| 1762 | |
| 1763 | free(strtab); |
| 1764 | return 0; |
| 1765 | |
| 1766 | err: |
| 1767 | free(strtab); |
| 1768 | return -1; |
| 1769 | } |
| 1770 | |
| 1771 | #endif /* SUNOS4 */ |