sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1 | |
| 2 | /*--------------------------------------------------------------------*/ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 3 | /*--- A header file for all private parts of Valgrind's core. ---*/ |
nethercote | 5a2664c | 2004-09-02 15:37:39 +0000 | [diff] [blame] | 4 | /*--- Include no other! (more or less...) ---*/ |
rjwalsh | 7109a8c | 2004-09-02 00:31:02 +0000 | [diff] [blame] | 5 | /*--- core.h ---*/ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 6 | /*--------------------------------------------------------------------*/ |
| 7 | |
| 8 | /* |
njn | b9c427c | 2004-12-01 14:14:42 +0000 | [diff] [blame] | 9 | This file is part of Valgrind, a dynamic binary instrumentation |
| 10 | framework. |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 11 | |
nethercote | bb1c991 | 2004-01-04 16:43:23 +0000 | [diff] [blame] | 12 | Copyright (C) 2000-2004 Julian Seward |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 13 | jseward@acm.org |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 14 | |
| 15 | This program is free software; you can redistribute it and/or |
| 16 | modify it under the terms of the GNU General Public License as |
| 17 | published by the Free Software Foundation; either version 2 of the |
| 18 | License, or (at your option) any later version. |
| 19 | |
| 20 | This program is distributed in the hope that it will be useful, but |
| 21 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 23 | General Public License for more details. |
| 24 | |
| 25 | You should have received a copy of the GNU General Public License |
| 26 | along with this program; if not, write to the Free Software |
| 27 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 28 | 02111-1307, USA. |
| 29 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 30 | The GNU General Public License is contained in the file COPYING. |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 31 | */ |
| 32 | |
rjwalsh | 7109a8c | 2004-09-02 00:31:02 +0000 | [diff] [blame] | 33 | #ifndef __CORE_H |
| 34 | #define __CORE_H |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 35 | |
nethercote | 7be4725 | 2004-09-02 16:02:58 +0000 | [diff] [blame] | 36 | /* |
| 37 | Header hierarchy: |
| 38 | |
| 39 | - core C files include core.h |
| 40 | - core asm files include core_asm.h |
| 41 | - tool C files include tool.h |
| 42 | - tool asm files include tool_asm.h |
| 43 | |
| 44 | - The hierarchy of the header files themselves is based around the |
| 45 | following rules: |
| 46 | |
| 47 | - core headers include tool headers |
| 48 | - generic headers include arch/OS/platform headers |
| 49 | - C headers include asm headers |
| 50 | |
| 51 | This gives the following hierarchy (only showing 'arch' headers, not |
nethercote | 80cca43 | 2004-09-02 16:25:49 +0000 | [diff] [blame] | 52 | 'os' or 'platform' headers), where arrows indicate inclusion, and |
| 53 | $VG_ARCH==x86: |
nethercote | 7be4725 | 2004-09-02 16:02:58 +0000 | [diff] [blame] | 54 | |
nethercote | 80cca43 | 2004-09-02 16:25:49 +0000 | [diff] [blame] | 55 | |
| 56 | (include/x86/tool_arch_asm.h?) <----- coregrind/x86/core_arch_asm.h |
| 57 | ^ ^ ^ ^ |
| 58 | / \ / \ |
| 59 | / \ / \ |
| 60 | / \ / \ |
| 61 | include/tool_asm.h <-\---- coregrind/core_asm.h \ |
| 62 | ^ \ ^ \ |
| 63 | \ include/x86/tool_arch.h <--------coregrind/x86/core_arch.h |
| 64 | \ ^ \ ^ |
| 65 | \ / \ / |
| 66 | \ / \ / |
| 67 | \ / \ / |
| 68 | include/tool.h <------------ coregrind/core.h |
| 69 | |
nethercote | 7be4725 | 2004-09-02 16:02:58 +0000 | [diff] [blame] | 70 | |
| 71 | Note that core.h contains the *declarations* of arch-specific functions |
| 72 | and variables, which can be used by the core_arch.h file of any |
| 73 | architecture. (The functions/variables are *defined* within arch/.) |
| 74 | However, arch-specific macros and types cannot go into core.h, because |
| 75 | there is no separation between declaration and definition for |
| 76 | macros/types, so they instead go into $VG_ARCH/core_arch.h. |
nethercote | 80cca43 | 2004-09-02 16:25:49 +0000 | [diff] [blame] | 77 | |
| 78 | The tool-specific headers are all in include/ so they can be seen by any |
| 79 | external tools. |
nethercote | 7be4725 | 2004-09-02 16:02:58 +0000 | [diff] [blame] | 80 | */ |
| 81 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 82 | /* For system call numbers __NR_... */ |
nethercote | f94fe2f | 2004-09-10 14:23:59 +0000 | [diff] [blame] | 83 | #include "vki_unistd.h" |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 84 | |
nethercote | 1334313 | 2004-09-02 15:49:09 +0000 | [diff] [blame] | 85 | #include "core_asm.h" // asm stuff |
| 86 | #include "tool.h" // tool stuff |
nethercote | bb4222b | 2004-09-10 17:42:11 +0000 | [diff] [blame] | 87 | #include "core_arch.h" // arch-specific stuff, eg. x86/core_arch.h |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 88 | |
| 89 | // Ugly: this is needed by linux/core_os.h |
| 90 | typedef struct _ThreadState ThreadState; |
| 91 | |
| 92 | #include "core_os.h" // OS-specific stuff, eg. linux/core_os.h |
nethercote | bb4222b | 2004-09-10 17:42:11 +0000 | [diff] [blame] | 93 | #include "core_platform.h" // platform-specific stuff, |
| 94 | // eg. x86-linux/core_platform.h |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 95 | |
fitzhardinge | 39de4b4 | 2003-10-31 07:12:21 +0000 | [diff] [blame] | 96 | #include "valgrind.h" |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 97 | |
njn | 26f0251 | 2004-11-22 18:33:15 +0000 | [diff] [blame] | 98 | #undef TL_ |
| 99 | #define TL_(x) vgToolInternal_##x |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 100 | |
nethercote | 7be4725 | 2004-09-02 16:02:58 +0000 | [diff] [blame] | 101 | |
| 102 | /* --------------------------------------------------------------------- |
| 103 | Build options and table sizes. You should be able to change these |
| 104 | options or sizes, recompile, and still have a working system. |
| 105 | ------------------------------------------------------------------ */ |
| 106 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 107 | /* Constants for the slow translation lookup cache. */ |
| 108 | #define VG_TRANSTAB_SLOW_BITS 11 |
| 109 | #define VG_TRANSTAB_SLOW_SIZE (1 << VG_TRANSTAB_SLOW_BITS) |
| 110 | #define VG_TRANSTAB_SLOW_MASK ((VG_TRANSTAB_SLOW_SIZE) - 1) |
| 111 | |
| 112 | /* Size of a buffer used for creating messages. */ |
| 113 | #define M_VG_MSGBUF 10000 |
| 114 | |
| 115 | /* Size of a smallish table used to read /proc/self/map entries. */ |
sewardj | ebc8233 | 2002-04-24 14:44:23 +0000 | [diff] [blame] | 116 | #define M_PROCMAP_BUF 50000 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 117 | |
| 118 | /* Max length of pathname to a .so/executable file. */ |
| 119 | #define M_VG_LIBNAMESTR 100 |
| 120 | |
| 121 | /* Max length of a text fragment used to construct error messages. */ |
nethercote | 3b38c1d | 2004-10-18 15:47:18 +0000 | [diff] [blame] | 122 | #define M_VG_ERRTXT 4096 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 123 | |
| 124 | /* Max length of the string copied from env var VG_ARGS at startup. */ |
| 125 | #define M_VG_CMDLINE_STRLEN 1000 |
| 126 | |
| 127 | /* Max number of options for Valgrind which we can handle. */ |
| 128 | #define M_VG_CMDLINE_OPTS 100 |
| 129 | |
| 130 | /* After this many different unsuppressed errors have been observed, |
| 131 | be more conservative about collecting new ones. */ |
| 132 | #define M_VG_COLLECT_ERRORS_SLOWLY_AFTER 50 |
| 133 | |
| 134 | /* After this many different unsuppressed errors have been observed, |
| 135 | stop collecting errors at all, and tell the user their program is |
| 136 | evidently a steaming pile of camel dung. */ |
sewardj | 1bebcbf | 2002-04-24 21:24:18 +0000 | [diff] [blame] | 137 | #define M_VG_COLLECT_NO_ERRORS_AFTER_SHOWN 300 |
sewardj | f2537be | 2002-04-24 21:03:47 +0000 | [diff] [blame] | 138 | |
| 139 | /* After this many total errors have been observed, stop collecting |
| 140 | errors at all. Counterpart to M_VG_COLLECT_NO_ERRORS_AFTER_SHOWN. */ |
sewardj | 1bebcbf | 2002-04-24 21:24:18 +0000 | [diff] [blame] | 141 | #define M_VG_COLLECT_NO_ERRORS_AFTER_FOUND 30000 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 142 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 143 | /* The maximum number of calls we're prepared to save in a |
| 144 | backtrace. */ |
| 145 | #define VG_DEEPEST_BACKTRACE 50 |
| 146 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 147 | /* Number of lists in which we keep track of ExeContexts. Should be |
| 148 | prime. */ |
sewardj | 59fb25c | 2003-09-28 16:32:58 +0000 | [diff] [blame] | 149 | #define VG_N_EC_LISTS 4999 /* a prime number */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 150 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 151 | /* Defines the thread-scheduling timeslice, in terms of the number of |
| 152 | basic blocks we attempt to run each thread for. Smaller values |
| 153 | give finer interleaving but much increased scheduling overheads. */ |
sewardj | 4505b9e | 2002-05-28 11:27:31 +0000 | [diff] [blame] | 154 | #define VG_SCHEDULING_QUANTUM 50000 |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 155 | |
fitzhardinge | f0046f2 | 2003-12-18 02:39:22 +0000 | [diff] [blame] | 156 | /* Number of file descriptors that Valgrind tries to reserve for |
| 157 | it's own use - two per thread plues a small number of extras. */ |
| 158 | #define VG_N_RESERVED_FDS (VG_N_THREADS*2 + 4) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 159 | |
sewardj | bf290b9 | 2002-05-01 02:28:01 +0000 | [diff] [blame] | 160 | /* Stack size for a thread. We try and check that they do not go |
| 161 | beyond it. */ |
sewardj | f0b0645 | 2002-06-04 08:38:04 +0000 | [diff] [blame] | 162 | #define VG_PTHREAD_STACK_SIZE (1 << 20) |
sewardj | bf290b9 | 2002-05-01 02:28:01 +0000 | [diff] [blame] | 163 | |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 164 | /* Number of entries in each thread's cleanup stack. */ |
sewardj | 61821c0 | 2003-05-04 13:02:10 +0000 | [diff] [blame] | 165 | #define VG_N_CLEANUPSTACK 16 |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 166 | |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 167 | /* Number of entries in each thread's fork-handler stack. */ |
sewardj | 4700f04 | 2003-07-26 17:49:58 +0000 | [diff] [blame] | 168 | #define VG_N_FORKHANDLERSTACK 4 |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 169 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 170 | /* Max number of callers for context in a suppression. */ |
| 171 | #define VG_N_SUPP_CALLERS 4 |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 172 | |
thughes | 8abf392 | 2004-10-16 10:59:49 +0000 | [diff] [blame] | 173 | /* Numer of entries in each thread's signal queue. */ |
| 174 | #define VG_N_SIGNALQUEUE 8 |
| 175 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 176 | /* Useful macros */ |
| 177 | /* a - alignment - must be a power of 2 */ |
| 178 | #define ROUNDDN(p, a) ((Addr)(p) & ~((a)-1)) |
| 179 | #define ROUNDUP(p, a) ROUNDDN((p)+(a)-1, (a)) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 180 | #define PGROUNDDN(p) ROUNDDN(p, VKI_PAGE_SIZE) |
| 181 | #define PGROUNDUP(p) ROUNDUP(p, VKI_PAGE_SIZE) |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 182 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 183 | |
nethercote | 80013e9 | 2004-09-05 20:39:51 +0000 | [diff] [blame] | 184 | /* --------------------------------------------------------------------- |
| 185 | Environment variables |
| 186 | ------------------------------------------------------------------ */ |
| 187 | |
| 188 | /* The directory we look for all our auxillary files in */ |
| 189 | #define VALGRINDLIB "VALGRINDLIB" |
| 190 | |
| 191 | /* Additional command-line arguments; they are overridden by actual |
| 192 | command-line option. Each argument is separated by spaces. There |
| 193 | is no quoting mechanism. |
| 194 | */ |
| 195 | #define VALGRINDOPTS "VALGRIND_OPTS" |
| 196 | |
| 197 | /* If this variable is present in the environment, then valgrind will |
| 198 | not parse the command line for options at all; all options come |
| 199 | from this variable. Arguments are terminated by ^A (\001). There |
| 200 | is no quoting mechanism. |
| 201 | |
| 202 | This variable is not expected to be set by anything other than |
| 203 | Valgrind itself, as part of its handling of execve with |
| 204 | --trace-children=yes. This variable should not be present in the |
| 205 | client environment. |
| 206 | */ |
| 207 | #define VALGRINDCLO "_VALGRIND_CLO" |
| 208 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 209 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 210 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 211 | Command-line-settable options |
| 212 | ------------------------------------------------------------------ */ |
| 213 | |
sewardj | 4f094a7 | 2002-11-05 23:37:35 +0000 | [diff] [blame] | 214 | /* Default destination port to be used in logging over a network, if |
| 215 | none specified. */ |
| 216 | #define VG_CLO_DEFAULT_LOGPORT 1500 |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 217 | |
| 218 | /* The max number of suppression files. */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 219 | #define VG_CLO_MAX_SFILES 10 |
| 220 | |
nethercote | 04d0fbc | 2004-01-26 16:48:06 +0000 | [diff] [blame] | 221 | /* Default debugger command. */ |
| 222 | #define VG_CLO_DEFAULT_DBCOMMAND GDB_PATH " -nw %f %p" |
| 223 | |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 224 | /* Describes where logging output is to be sent. */ |
| 225 | typedef |
| 226 | enum { |
| 227 | VgLogTo_Fd, |
| 228 | VgLogTo_File, |
sewardj | 603d410 | 2005-01-11 14:01:02 +0000 | [diff] [blame] | 229 | VgLogTo_FileExactly, |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 230 | VgLogTo_Socket |
| 231 | } VgLogTo; |
| 232 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 233 | /* pid of main process */ |
| 234 | extern Int VG_(main_pid); |
| 235 | |
| 236 | /* pgrp of process (global to all threads) */ |
| 237 | extern Int VG_(main_pgrp); |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 238 | |
thughes | ad1c956 | 2004-06-26 11:27:52 +0000 | [diff] [blame] | 239 | /* Application-visible file descriptor limits */ |
| 240 | extern Int VG_(fd_soft_limit); |
| 241 | extern Int VG_(fd_hard_limit); |
fitzhardinge | f0046f2 | 2003-12-18 02:39:22 +0000 | [diff] [blame] | 242 | |
sewardj | 8b635a4 | 2004-11-22 19:01:47 +0000 | [diff] [blame] | 243 | /* Vex iropt control */ |
| 244 | extern VexControl VG_(clo_vex_control); |
sewardj | 72f98ff | 2002-06-13 17:23:38 +0000 | [diff] [blame] | 245 | /* Should we stop collecting errors if too many appear? default: YES */ |
sewardj | 2e43290 | 2002-06-13 20:44:00 +0000 | [diff] [blame] | 246 | extern Bool VG_(clo_error_limit); |
nethercote | 04d0fbc | 2004-01-26 16:48:06 +0000 | [diff] [blame] | 247 | /* Enquire about whether to attach to a debugger at errors? default: NO */ |
| 248 | extern Bool VG_(clo_db_attach); |
| 249 | /* The debugger command? default: whatever gdb ./configure found */ |
| 250 | extern Char* VG_(clo_db_command); |
sewardj | d153fae | 2005-01-10 17:24:47 +0000 | [diff] [blame] | 251 | /* Generating a suppression for each error? default: 0 (NO) |
| 252 | Other values: 1 (yes, but ask user), 2 (yes, don't ask user) */ |
| 253 | extern Int VG_(clo_gen_suppressions); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 254 | /* Sanity-check level: 0 = none, 1 (default), > 1 = expensive. */ |
nethercote | 27fec90 | 2004-06-16 21:26:32 +0000 | [diff] [blame] | 255 | extern Int VG_(clo_sanity_level); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 256 | /* Automatically attempt to demangle C++ names? default: YES */ |
| 257 | extern Bool VG_(clo_demangle); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 258 | /* Simulate child processes? default: NO */ |
| 259 | extern Bool VG_(clo_trace_children); |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 260 | |
| 261 | /* Where logging output is to be sent to. |
| 262 | |
nethercote | f854867 | 2004-06-21 12:42:35 +0000 | [diff] [blame] | 263 | When log_to == VgLogTo_Fd, clo_log_fd holds the file id, and is |
| 264 | taken from the command line. clo_log_name is irrelevant. |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 265 | |
nethercote | f854867 | 2004-06-21 12:42:35 +0000 | [diff] [blame] | 266 | When log_to == VgLogTo_File, clo_log_name holds the log-file |
| 267 | name, and is taken from the command line. clo_log_fd is then |
| 268 | made to hold the relevant file id, by opening clo_log_name |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 269 | (concatenated with the process ID) for writing. |
| 270 | |
nethercote | f854867 | 2004-06-21 12:42:35 +0000 | [diff] [blame] | 271 | When log_to == VgLogTo_Socket, clo_log_name holds the |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 272 | hostname:portnumber pair, and is taken from the command line. |
nethercote | f854867 | 2004-06-21 12:42:35 +0000 | [diff] [blame] | 273 | clo_log_fd is then made to hold the relevant file handle, by |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 274 | opening a connection to said hostname:portnumber pair. |
| 275 | |
nethercote | f854867 | 2004-06-21 12:42:35 +0000 | [diff] [blame] | 276 | Global default is to set log_to == VgLogTo_Fd and log_fd == 2 |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 277 | (stderr). */ |
| 278 | extern VgLogTo VG_(clo_log_to); |
nethercote | f854867 | 2004-06-21 12:42:35 +0000 | [diff] [blame] | 279 | extern Int VG_(clo_log_fd); |
| 280 | extern Char* VG_(clo_log_name); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 281 | |
thughes | 6233a38 | 2004-08-21 11:10:44 +0000 | [diff] [blame] | 282 | /* Add timestamps to log messages? default: NO */ |
| 283 | extern Bool VG_(clo_time_stamp); |
| 284 | |
sewardj | 6024b21 | 2003-07-13 10:54:33 +0000 | [diff] [blame] | 285 | /* The file descriptor to read for input. default: 0 == stdin */ |
| 286 | extern Int VG_(clo_input_fd); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 287 | /* The number of suppression files specified. */ |
| 288 | extern Int VG_(clo_n_suppressions); |
| 289 | /* The names of the suppression files. */ |
| 290 | extern Char* VG_(clo_suppressions)[VG_CLO_MAX_SFILES]; |
| 291 | |
sewardj | c771b29 | 2004-11-30 18:55:21 +0000 | [diff] [blame] | 292 | /* DEBUG: print generated code? default: 00000000 ( == NO ) */ |
sewardj | fa8ec11 | 2005-01-19 11:55:34 +0000 | [diff] [blame] | 293 | extern Bool VG_(clo_trace_flags); |
| 294 | /* DEBUG: do bb profiling? default: 00000000 ( == NO ) */ |
| 295 | extern Bool VG_(clo_profile_flags); |
sewardj | c771b29 | 2004-11-30 18:55:21 +0000 | [diff] [blame] | 296 | /* DEBUG: if tracing codegen, be quiet until after this bb ( 0 ) */ |
| 297 | extern Int VG_(clo_trace_notbelow); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 298 | /* DEBUG: print system calls? default: NO */ |
| 299 | extern Bool VG_(clo_trace_syscalls); |
| 300 | /* DEBUG: print signal details? default: NO */ |
| 301 | extern Bool VG_(clo_trace_signals); |
| 302 | /* DEBUG: print symtab details? default: NO */ |
| 303 | extern Bool VG_(clo_trace_symtab); |
sewardj | 8937c81 | 2002-04-12 20:12:20 +0000 | [diff] [blame] | 304 | /* DEBUG: print thread scheduling events? default: NO */ |
| 305 | extern Bool VG_(clo_trace_sched); |
sewardj | 45b4b37 | 2002-04-16 22:50:32 +0000 | [diff] [blame] | 306 | /* DEBUG: print pthread (mutex etc) events? default: 0 (none), 1 |
| 307 | (some), 2 (all) */ |
| 308 | extern Int VG_(clo_trace_pthread_level); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 309 | /* Display gory details for the k'th most popular error. default: |
| 310 | Infinity. */ |
| 311 | extern Int VG_(clo_dump_error); |
| 312 | /* Number of parents of a backtrace. Default: 8. */ |
| 313 | extern Int VG_(clo_backtrace_size); |
daywalker | 7e73e5f | 2003-07-04 16:18:15 +0000 | [diff] [blame] | 314 | /* Engage miscellaneous weird hacks needed for some progs. */ |
sewardj | 8d365b5 | 2002-05-12 10:52:16 +0000 | [diff] [blame] | 315 | extern Char* VG_(clo_weird_hacks); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 316 | /* How often we should poll for signals, assuming we need to poll for |
| 317 | signals. */ |
| 318 | extern Int VG_(clo_signal_polltime); |
| 319 | |
| 320 | /* Low latency syscalls and signals */ |
| 321 | extern Bool VG_(clo_lowlat_syscalls); |
| 322 | extern Bool VG_(clo_lowlat_signals); |
| 323 | |
rjwalsh | f5f536f | 2003-11-17 17:45:00 +0000 | [diff] [blame] | 324 | /* Track open file descriptors? */ |
| 325 | extern Bool VG_(clo_track_fds); |
| 326 | |
sewardj | 858964b | 2002-10-05 14:15:43 +0000 | [diff] [blame] | 327 | /* Should we run __libc_freeres at exit? Sometimes causes crashes. |
| 328 | Default: YES. Note this is subservient to VG_(needs).libc_freeres; |
| 329 | if the latter says False, then the setting of VG_(clo_weird_hacks) |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 330 | is ignored. Ie if a tool says no, I don't want this to run, that |
sewardj | 858964b | 2002-10-05 14:15:43 +0000 | [diff] [blame] | 331 | cannot be overridden from the command line. */ |
| 332 | extern Bool VG_(clo_run_libc_freeres); |
fitzhardinge | 462f4f9 | 2003-12-18 02:10:54 +0000 | [diff] [blame] | 333 | /* Generate branch-prediction hints? */ |
| 334 | extern Bool VG_(clo_branchpred); |
nethercote | 77eba60 | 2003-11-13 17:35:04 +0000 | [diff] [blame] | 335 | /* Continue stack traces below main()? Default: NO */ |
| 336 | extern Bool VG_(clo_show_below_main); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 337 | /* Test each client pointer dereference to check it's within the |
| 338 | client address space bounds */ |
| 339 | extern Bool VG_(clo_pointercheck); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 340 | |
sewardj | 062f355 | 2005-01-06 16:13:40 +0000 | [diff] [blame] | 341 | /* HACK: Use hacked version of clone for Quadrics Elan3 drivers */ |
| 342 | extern Bool VG_(clo_support_elan3); |
| 343 | |
rjwalsh | e4e779d | 2004-04-16 23:02:29 +0000 | [diff] [blame] | 344 | /* Set up the libc freeres wrapper */ |
| 345 | extern void VG_(intercept_libc_freeres_wrapper)(Addr); |
| 346 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 347 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 348 | /* --------------------------------------------------------------------- |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 349 | Profiling stuff |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 350 | ------------------------------------------------------------------ */ |
| 351 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 352 | extern void VGP_(init_profiling) ( void ); |
| 353 | extern void VGP_(done_profiling) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 354 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 355 | #undef VGP_PUSHCC |
| 356 | #undef VGP_POPCC |
| 357 | #define VGP_PUSHCC(x) if (VG_(clo_profile)) VGP_(pushcc)(x) |
| 358 | #define VGP_POPCC(x) if (VG_(clo_profile)) VGP_(popcc)(x) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 359 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 360 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 361 | /* --------------------------------------------------------------------- |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 362 | Tool-related types |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 363 | ------------------------------------------------------------------ */ |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 364 | /* These structs are not exposed to tools to mitigate possibility of |
| 365 | binary-incompatibilities when the core/tool interface changes. Instead, |
nethercote | 4606320 | 2004-09-02 08:51:43 +0000 | [diff] [blame] | 366 | set functions are provided (see include/tool.h). */ |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 367 | typedef |
| 368 | struct { |
| 369 | Char* name; |
| 370 | Char* version; |
| 371 | Char* description; |
| 372 | Char* copyright_author; |
| 373 | Char* bug_reports_to; |
njn | 120281f | 2003-02-03 12:20:07 +0000 | [diff] [blame] | 374 | UInt avg_translation_sizeB; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 375 | } |
| 376 | VgDetails; |
| 377 | |
| 378 | extern VgDetails VG_(details); |
| 379 | |
| 380 | /* If new fields are added to this type, update: |
| 381 | * - vg_main.c:initialisation of VG_(needs) |
| 382 | * - vg_main.c:sanity_check_needs() |
| 383 | * |
| 384 | * If the name of this type or any of its fields change, update: |
| 385 | * - dependent comments (just search for "VG_(needs)"). |
| 386 | */ |
| 387 | typedef |
| 388 | struct { |
| 389 | Bool libc_freeres; |
| 390 | Bool core_errors; |
njn | 95ec870 | 2004-11-22 16:46:13 +0000 | [diff] [blame] | 391 | Bool tool_errors; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 392 | Bool basic_block_discards; |
njn | abb14ad | 2004-11-24 16:57:16 +0000 | [diff] [blame] | 393 | Bool no_longer_used_1; // for backwards compatibility |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 394 | Bool command_line_options; |
| 395 | Bool client_requests; |
njn | 37624a7 | 2004-11-22 20:37:42 +0000 | [diff] [blame] | 396 | Bool no_longer_used_0; // for backwards compatibility |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 397 | Bool syscall_wrapper; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 398 | Bool sanity_checks; |
| 399 | Bool data_syms; |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 400 | Bool shadow_memory; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 401 | } |
| 402 | VgNeeds; |
| 403 | |
| 404 | extern VgNeeds VG_(needs); |
| 405 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 406 | extern void VG_(tool_init_dlsym)(void *dlhandle); |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 407 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 408 | #include "vg_toolint.h" |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 409 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 410 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 411 | /* --------------------------------------------------------------------- |
| 412 | Exports of vg_needs.c |
| 413 | ------------------------------------------------------------------ */ |
| 414 | |
| 415 | void VG_(sanity_check_needs)(void); |
| 416 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 417 | |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 418 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 419 | Exports of vg_malloc2.c |
| 420 | ------------------------------------------------------------------ */ |
| 421 | |
| 422 | /* Allocation arenas. |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 423 | |
| 424 | CORE for the core's general use. |
nethercote | 60f5b82 | 2004-01-26 17:24:42 +0000 | [diff] [blame] | 425 | TOOL for the tool to use (and the only one it uses). |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 426 | SYMTAB for Valgrind's symbol table storage. |
| 427 | JITTER for small storage during translation. |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 428 | CLIENT for the client's mallocs/frees, if the tool replaces glibc's |
| 429 | malloc() et al -- redzone size is chosen by the tool. |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 430 | DEMANGLE for the C++ demangler. |
| 431 | EXECTXT for storing ExeContexts. |
| 432 | ERRORS for storing CoreErrors. |
| 433 | TRANSIENT for very short-term use. It should be empty in between uses. |
| 434 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 435 | When adding a new arena, remember also to add it to ensure_mm_init(). |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 436 | */ |
| 437 | typedef Int ArenaId; |
| 438 | |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 439 | #define VG_N_ARENAS 9 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 440 | |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 441 | #define VG_AR_CORE 0 |
nethercote | 60f5b82 | 2004-01-26 17:24:42 +0000 | [diff] [blame] | 442 | #define VG_AR_TOOL 1 |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 443 | #define VG_AR_SYMTAB 2 |
| 444 | #define VG_AR_JITTER 3 |
| 445 | #define VG_AR_CLIENT 4 |
| 446 | #define VG_AR_DEMANGLE 5 |
| 447 | #define VG_AR_EXECTXT 6 |
| 448 | #define VG_AR_ERRORS 7 |
| 449 | #define VG_AR_TRANSIENT 8 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 450 | |
nethercote | 2d5b816 | 2004-08-11 09:40:52 +0000 | [diff] [blame] | 451 | // This is both the minimum payload size of a malloc'd block, and its |
| 452 | // minimum alignment. Must be a power of 2 greater than 4, and should be |
| 453 | // greater than 8. |
| 454 | #define VG_MIN_MALLOC_SZB 8 |
| 455 | |
| 456 | // Round-up size for --sloppy-malloc=yes. |
| 457 | #define VG_SLOPPY_MALLOC_SZB 4 |
| 458 | |
nethercote | 7ac7f7b | 2004-11-02 12:36:02 +0000 | [diff] [blame] | 459 | extern void* VG_(arena_malloc) ( ArenaId arena, SizeT nbytes ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 460 | extern void VG_(arena_free) ( ArenaId arena, void* ptr ); |
nethercote | 7ac7f7b | 2004-11-02 12:36:02 +0000 | [diff] [blame] | 461 | extern void* VG_(arena_calloc) ( ArenaId arena, SizeT alignment, |
| 462 | SizeT nmemb, SizeT nbytes ); |
| 463 | extern void* VG_(arena_realloc) ( ArenaId arena, void* ptr, SizeT alignment, |
| 464 | SizeT size ); |
| 465 | extern void* VG_(arena_malloc_aligned) ( ArenaId aid, SizeT req_alignB, |
| 466 | SizeT req_pszB ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 467 | |
nethercote | 7ac7f7b | 2004-11-02 12:36:02 +0000 | [diff] [blame] | 468 | extern SizeT VG_(arena_payload_szB) ( ArenaId aid, void* payload ); |
njn | 8a6b6c0 | 2003-04-22 22:45:55 +0000 | [diff] [blame] | 469 | |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 470 | extern void VG_(sanity_check_malloc_all) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 471 | |
nethercote | 3a42fb8 | 2004-08-03 18:08:50 +0000 | [diff] [blame] | 472 | extern void VG_(print_all_arena_stats) ( void ); |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 473 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 474 | extern Bool VG_(is_empty_arena) ( ArenaId aid ); |
| 475 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 476 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 477 | /* --------------------------------------------------------------------- |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 478 | Exports of vg_intercept.c |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 479 | ------------------------------------------------------------------ */ |
| 480 | |
| 481 | /* This doesn't export code or data that valgrind.so needs to link |
| 482 | against. However, the scheduler does need to know the following |
| 483 | request codes. A few, publically-visible, request codes are also |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 484 | defined in valgrind.h, and similar headers for some tools. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 485 | |
njn | 4c79121 | 2003-05-02 17:53:54 +0000 | [diff] [blame] | 486 | #define VG_USERREQ__MALLOC 0x2001 |
| 487 | #define VG_USERREQ__FREE 0x2002 |
| 488 | |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 489 | /* (Fn, Arg): Create a new thread and run Fn applied to Arg in it. Fn |
| 490 | MUST NOT return -- ever. Eventually it will do either __QUIT or |
| 491 | __WAIT_JOINER. */ |
| 492 | #define VG_USERREQ__APPLY_IN_NEW_THREAD 0x3001 |
| 493 | |
| 494 | /* ( no-args ): calling thread disappears from the system forever. |
| 495 | Reclaim resources. */ |
| 496 | #define VG_USERREQ__QUIT 0x3002 |
| 497 | |
| 498 | /* ( void* ): calling thread waits for joiner and returns the void* to |
| 499 | it. */ |
| 500 | #define VG_USERREQ__WAIT_JOINER 0x3003 |
| 501 | |
| 502 | /* ( ThreadId, void** ): wait to join a thread. */ |
| 503 | #define VG_USERREQ__PTHREAD_JOIN 0x3004 |
| 504 | |
| 505 | /* Set cancellation state and type for this thread. */ |
| 506 | #define VG_USERREQ__SET_CANCELSTATE 0x3005 |
| 507 | #define VG_USERREQ__SET_CANCELTYPE 0x3006 |
| 508 | |
| 509 | /* ( no-args ): Test if we are at a cancellation point. */ |
| 510 | #define VG_USERREQ__TESTCANCEL 0x3007 |
| 511 | |
| 512 | /* ( ThreadId, &thread_exit_wrapper is the only allowable arg ): call |
| 513 | with this arg to indicate that a cancel is now pending for the |
| 514 | specified thread. */ |
| 515 | #define VG_USERREQ__SET_CANCELPEND 0x3008 |
| 516 | |
| 517 | /* Set/get detach state for this thread. */ |
| 518 | #define VG_USERREQ__SET_OR_GET_DETACH 0x3009 |
| 519 | |
thughes | e321d49 | 2004-10-17 15:00:20 +0000 | [diff] [blame] | 520 | #define VG_USERREQ__PTHREAD_GET_THREADID 0x300A |
| 521 | #define VG_USERREQ__PTHREAD_MUTEX_LOCK 0x300B |
| 522 | #define VG_USERREQ__PTHREAD_MUTEX_TIMEDLOCK 0x300C |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 523 | #define VG_USERREQ__PTHREAD_MUTEX_TRYLOCK 0x300D |
| 524 | #define VG_USERREQ__PTHREAD_MUTEX_UNLOCK 0x300E |
| 525 | #define VG_USERREQ__PTHREAD_COND_WAIT 0x300F |
| 526 | #define VG_USERREQ__PTHREAD_COND_TIMEDWAIT 0x3010 |
| 527 | #define VG_USERREQ__PTHREAD_COND_SIGNAL 0x3011 |
| 528 | #define VG_USERREQ__PTHREAD_COND_BROADCAST 0x3012 |
| 529 | #define VG_USERREQ__PTHREAD_KEY_CREATE 0x3013 |
| 530 | #define VG_USERREQ__PTHREAD_KEY_DELETE 0x3014 |
sewardj | 00a66b1 | 2002-10-12 16:42:35 +0000 | [diff] [blame] | 531 | #define VG_USERREQ__PTHREAD_SETSPECIFIC_PTR 0x3015 |
| 532 | #define VG_USERREQ__PTHREAD_GETSPECIFIC_PTR 0x3016 |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 533 | #define VG_USERREQ__READ_MILLISECOND_TIMER 0x3017 |
| 534 | #define VG_USERREQ__PTHREAD_SIGMASK 0x3018 |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 535 | #define VG_USERREQ__SIGWAIT 0x3019 /* unused */ |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 536 | #define VG_USERREQ__PTHREAD_KILL 0x301A |
| 537 | #define VG_USERREQ__PTHREAD_YIELD 0x301B |
sewardj | 00a66b1 | 2002-10-12 16:42:35 +0000 | [diff] [blame] | 538 | #define VG_USERREQ__PTHREAD_KEY_VALIDATE 0x301C |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 539 | |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 540 | #define VG_USERREQ__CLEANUP_PUSH 0x3020 |
| 541 | #define VG_USERREQ__CLEANUP_POP 0x3021 |
sewardj | 870497a | 2002-05-29 01:06:47 +0000 | [diff] [blame] | 542 | #define VG_USERREQ__GET_KEY_D_AND_S 0x3022 |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 543 | |
sewardj | ef037c7 | 2002-05-30 00:40:03 +0000 | [diff] [blame] | 544 | #define VG_USERREQ__NUKE_OTHER_THREADS 0x3023 |
sewardj | efbfcdf | 2002-06-19 17:35:45 +0000 | [diff] [blame] | 545 | |
| 546 | /* Ask how many signal handler returns have happened to this |
| 547 | thread. */ |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 548 | #define VG_USERREQ__GET_N_SIGS_RETURNED 0x3024 /* unused */ |
sewardj | ef037c7 | 2002-05-30 00:40:03 +0000 | [diff] [blame] | 549 | |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 550 | /* Get/set entries for a thread's pthread_atfork stack. */ |
| 551 | #define VG_USERREQ__SET_FHSTACK_USED 0x3025 |
| 552 | #define VG_USERREQ__GET_FHSTACK_USED 0x3026 |
| 553 | #define VG_USERREQ__SET_FHSTACK_ENTRY 0x3027 |
| 554 | #define VG_USERREQ__GET_FHSTACK_ENTRY 0x3028 |
sewardj | efbfcdf | 2002-06-19 17:35:45 +0000 | [diff] [blame] | 555 | |
nethercote | f971ab7 | 2004-08-02 16:27:40 +0000 | [diff] [blame] | 556 | /* Denote the finish of __libc_freeres_wrapper(). */ |
sewardj | 1fe7b00 | 2002-07-16 01:43:15 +0000 | [diff] [blame] | 557 | #define VG_USERREQ__LIBC_FREERES_DONE 0x3029 |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 558 | |
| 559 | /* Allocate RT signals */ |
| 560 | #define VG_USERREQ__GET_SIGRT_MIN 0x302B |
| 561 | #define VG_USERREQ__GET_SIGRT_MAX 0x302C |
| 562 | #define VG_USERREQ__ALLOC_RTSIG 0x302D |
| 563 | |
| 564 | /* Hook for replace_malloc.o to get malloc functions */ |
| 565 | #define VG_USERREQ__GET_MALLOCFUNCS 0x3030 |
| 566 | |
thughes | daa3456 | 2004-06-27 12:48:53 +0000 | [diff] [blame] | 567 | /* Get stack information for a thread. */ |
| 568 | #define VG_USERREQ__GET_STACK_INFO 0x3033 |
| 569 | |
sewardj | 45b4b37 | 2002-04-16 22:50:32 +0000 | [diff] [blame] | 570 | /* Cosmetic ... */ |
| 571 | #define VG_USERREQ__GET_PTHREAD_TRACE_LEVEL 0x3101 |
sewardj | 4dced35 | 2002-06-04 22:54:20 +0000 | [diff] [blame] | 572 | /* Log a pthread error from client-space. Cosmetic. */ |
| 573 | #define VG_USERREQ__PTHREAD_ERROR 0x3102 |
fitzhardinge | 39de4b4 | 2003-10-31 07:12:21 +0000 | [diff] [blame] | 574 | /* Internal equivalent of VALGRIND_PRINTF . */ |
| 575 | #define VG_USERREQ__INTERNAL_PRINTF 0x3103 |
| 576 | /* Internal equivalent of VALGRIND_PRINTF_BACKTRACE . */ |
| 577 | #define VG_USERREQ__INTERNAL_PRINTF_BACKTRACE 0x3104 |
sewardj | 45b4b37 | 2002-04-16 22:50:32 +0000 | [diff] [blame] | 578 | |
sewardj | 54cacf0 | 2002-04-12 23:24:59 +0000 | [diff] [blame] | 579 | /* |
nethercote | 5a2664c | 2004-09-02 15:37:39 +0000 | [diff] [blame] | 580 | In core_asm.h: |
sewardj | 54cacf0 | 2002-04-12 23:24:59 +0000 | [diff] [blame] | 581 | #define VG_USERREQ__SIGNAL_RETURNS 0x4001 |
sewardj | 54cacf0 | 2002-04-12 23:24:59 +0000 | [diff] [blame] | 582 | */ |
| 583 | |
rjwalsh | e4e779d | 2004-04-16 23:02:29 +0000 | [diff] [blame] | 584 | #define VG_INTERCEPT_PREFIX "_vgi__" |
| 585 | #define VG_INTERCEPT_PREFIX_LEN 6 |
| 586 | #define VG_INTERCEPT(name) _vgi__##name |
| 587 | #define VG_INTERCEPT_ALIAS(name) "_vgi__" #name |
| 588 | |
| 589 | #define VG_WRAPPER_PREFIX "_vgw__" |
| 590 | #define VG_WRAPPER_PREFIX_LEN 6 |
| 591 | #define VG_WRAPPER(name) _vgw__##name |
| 592 | #define VG_WRAPPER_ALIAS(name) "_vgw__" #name |
| 593 | |
njn | 4c79121 | 2003-05-02 17:53:54 +0000 | [diff] [blame] | 594 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 595 | struct vg_mallocfunc_info { |
| 596 | /* things vg_replace_malloc.o needs to know about */ |
njn | d225283 | 2004-11-26 10:53:33 +0000 | [diff] [blame] | 597 | Addr tl_malloc; |
| 598 | Addr tl_calloc; |
| 599 | Addr tl_realloc; |
| 600 | Addr tl_memalign; |
| 601 | Addr tl___builtin_new; |
| 602 | Addr tl___builtin_vec_new; |
| 603 | Addr tl_free; |
| 604 | Addr tl___builtin_delete; |
| 605 | Addr tl___builtin_vec_delete; |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 606 | |
| 607 | Addr arena_payload_szB; |
| 608 | |
| 609 | Bool clo_sloppy_malloc; |
| 610 | Bool clo_trace_malloc; |
| 611 | }; |
sewardj | 1fe7b00 | 2002-07-16 01:43:15 +0000 | [diff] [blame] | 612 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 613 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 614 | /* --------------------------------------------------------------------- |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 615 | Exports of vg_defaults.c |
| 616 | ------------------------------------------------------------------ */ |
| 617 | |
njn | d225283 | 2004-11-26 10:53:33 +0000 | [diff] [blame] | 618 | extern Bool VG_(tl_malloc_called_by_scheduler); |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 619 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 620 | |
nethercote | f9b5941 | 2004-09-10 15:33:32 +0000 | [diff] [blame] | 621 | /* --------------------------------------------------------------------- |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 622 | Exports of vg_libpthread.c |
| 623 | ------------------------------------------------------------------ */ |
| 624 | |
| 625 | /* Replacements for pthread types, shared between vg_libpthread.c and |
| 626 | vg_scheduler.c. See comment in vg_libpthread.c above the other |
| 627 | vg_pthread_*_t types for a description of how these are used. */ |
| 628 | |
| 629 | struct _vg_pthread_fastlock |
| 630 | { |
| 631 | long int __vg_status; /* "Free" or "taken" or head of waiting list */ |
| 632 | int __vg_spinlock; /* Used by compare_and_swap emulation. Also, |
| 633 | adaptive SMP lock stores spin count here. */ |
| 634 | }; |
| 635 | |
| 636 | typedef struct |
| 637 | { |
| 638 | int __vg_m_reserved; /* Reserved for future use */ |
| 639 | int __vg_m_count; /* Depth of recursive locking */ |
| 640 | /*_pthread_descr*/ void* __vg_m_owner; /* Owner thread (if recursive or errcheck) */ |
| 641 | int __vg_m_kind; /* Mutex kind: fast, recursive or errcheck */ |
| 642 | struct _vg_pthread_fastlock __vg_m_lock; /* Underlying fast lock */ |
| 643 | } vg_pthread_mutex_t; |
| 644 | |
| 645 | typedef struct |
| 646 | { |
| 647 | struct _vg_pthread_fastlock __vg_c_lock; /* Protect against concurrent access */ |
nethercote | dffad08 | 2004-02-28 23:32:11 +0000 | [diff] [blame] | 648 | /*_pthread_descr*/ void* __vg_c_waiting; /* Threads waiting on this condition */ |
| 649 | |
| 650 | // Nb: the following padding removed because it was missing from an |
| 651 | // earlier glibc, so the size test in the CONVERT macro was failing. |
| 652 | // --njn |
| 653 | |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 654 | // Padding ensures the size is 48 bytes |
nethercote | dffad08 | 2004-02-28 23:32:11 +0000 | [diff] [blame] | 655 | /*char __vg_padding[48 - sizeof(struct _vg_pthread_fastlock) |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 656 | - sizeof(void*) - sizeof(long long)]; |
nethercote | dffad08 | 2004-02-28 23:32:11 +0000 | [diff] [blame] | 657 | long long __vg_align;*/ |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 658 | } vg_pthread_cond_t; |
| 659 | |
| 660 | |
| 661 | /* --------------------------------------------------------------------- |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 662 | Exports of vg_scheduler.c |
| 663 | ------------------------------------------------------------------ */ |
| 664 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 665 | typedef |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 666 | enum ThreadStatus { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 667 | VgTs_Empty, /* this slot is not in use */ |
| 668 | VgTs_Runnable, /* waiting to be scheduled */ |
| 669 | VgTs_WaitJoiner, /* waiting for someone to do join on me */ |
| 670 | VgTs_WaitJoinee, /* waiting for the thread I did join on */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 671 | VgTs_WaitMX, /* waiting on a mutex */ |
sewardj | 3b5d886 | 2002-04-20 13:53:23 +0000 | [diff] [blame] | 672 | VgTs_WaitCV, /* waiting on a condition variable */ |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 673 | VgTs_WaitSys, /* waiting for a syscall to complete */ |
| 674 | VgTs_Sleeping, /* sleeping for a while */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 675 | } |
| 676 | ThreadStatus; |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 677 | |
thughes | 11975ff | 2004-06-12 12:58:22 +0000 | [diff] [blame] | 678 | typedef |
| 679 | enum CleanupType { |
| 680 | VgCt_None, /* this cleanup entry is not initialised */ |
| 681 | VgCt_Function, /* an old-style function pointer cleanup */ |
| 682 | VgCt_Longjmp /* a new-style longjmp based cleanup */ |
| 683 | } |
| 684 | CleanupType; |
| 685 | |
thughes | daa3456 | 2004-06-27 12:48:53 +0000 | [diff] [blame] | 686 | /* Information on a thread's stack. */ |
| 687 | typedef |
| 688 | struct { |
| 689 | Addr base; |
| 690 | UInt size; |
| 691 | UInt guardsize; |
| 692 | } |
| 693 | StackInfo; |
| 694 | |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 695 | /* An entry in a threads's cleanup stack. */ |
| 696 | typedef |
| 697 | struct { |
thughes | 11975ff | 2004-06-12 12:58:22 +0000 | [diff] [blame] | 698 | CleanupType type; |
| 699 | union { |
| 700 | struct { |
| 701 | void (*fn)(void*); |
| 702 | void* arg; |
| 703 | } function; |
| 704 | struct { |
thughes | ebed998 | 2004-06-12 17:25:25 +0000 | [diff] [blame] | 705 | void *ub; |
thughes | 11975ff | 2004-06-12 12:58:22 +0000 | [diff] [blame] | 706 | int ctype; |
| 707 | } longjmp; |
| 708 | } data; |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 709 | } |
| 710 | CleanupEntry; |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 711 | |
| 712 | /* An entry in a thread's fork-handler stack. */ |
| 713 | typedef |
| 714 | struct { |
| 715 | void (*prepare)(void); |
| 716 | void (*parent)(void); |
| 717 | void (*child)(void); |
| 718 | } |
| 719 | ForkHandlerEntry; |
| 720 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 721 | typedef struct ProxyLWP ProxyLWP; |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 722 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 723 | //typedef |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 724 | struct _ThreadState { |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 725 | /* ThreadId == 0 (and hence vg_threads[0]) is NEVER USED. |
| 726 | The thread identity is simply the index in vg_threads[]. |
| 727 | ThreadId == 1 is the root thread and has the special property |
| 728 | that we don't try and allocate or deallocate its stack. For |
| 729 | convenience of generating error message, we also put the |
| 730 | ThreadId in this tid field, but be aware that it should |
| 731 | ALWAYS == the index in vg_threads[]. */ |
| 732 | ThreadId tid; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 733 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 734 | /* Current scheduling status. |
sewardj | 5f07b66 | 2002-04-23 16:52:51 +0000 | [diff] [blame] | 735 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 736 | Complications: whenever this is set to VgTs_WaitMX, you |
| 737 | should also set .m_edx to whatever the required return value |
| 738 | is for pthread_mutex_lock / pthread_cond_timedwait for when |
| 739 | the mutex finally gets unblocked. */ |
| 740 | ThreadStatus status; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 741 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 742 | /* When .status == WaitMX, points to the mutex I am waiting for. |
| 743 | When .status == WaitCV, points to the mutex associated with |
| 744 | the condition variable indicated by the .associated_cv field. |
| 745 | In all other cases, should be NULL. */ |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 746 | vg_pthread_mutex_t* associated_mx; |
sewardj | 3b5d886 | 2002-04-20 13:53:23 +0000 | [diff] [blame] | 747 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 748 | /* When .status == WaitCV, points to the condition variable I am |
| 749 | waiting for. In all other cases, should be NULL. */ |
| 750 | void* /*pthread_cond_t* */ associated_cv; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 751 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 752 | /* If VgTs_Sleeping, this is when we should wake up, measured in |
njn | 6c84655 | 2003-09-16 07:41:43 +0000 | [diff] [blame] | 753 | milliseconds as supplied by VG_(read_millisecond_timer). |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 754 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 755 | If VgTs_WaitCV, this indicates the time at which |
| 756 | pthread_cond_timedwait should wake up. If == 0xFFFFFFFF, |
| 757 | this means infinitely far in the future, viz, |
| 758 | pthread_cond_wait. */ |
| 759 | UInt awaken_at; |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 760 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 761 | /* If VgTs_WaitJoiner, return value, as generated by joinees. */ |
| 762 | void* joinee_retval; |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 763 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 764 | /* If VgTs_WaitJoinee, place to copy the return value to, and |
| 765 | the identity of the thread we're waiting for. */ |
| 766 | void** joiner_thread_return; |
| 767 | ThreadId joiner_jee_tid; |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 768 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 769 | /* If VgTs_WaitSys, this is the syscall we're currently running */ |
| 770 | Int syscallno; |
| 771 | |
thughes | baa46e5 | 2004-07-29 17:44:23 +0000 | [diff] [blame] | 772 | /* If VgTs_WaitSys, this is the syscall flags */ |
| 773 | UInt sys_flags; |
| 774 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 775 | /* Details about this thread's proxy LWP */ |
| 776 | ProxyLWP *proxy; |
| 777 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 778 | /* Whether or not detached. */ |
| 779 | Bool detached; |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 780 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 781 | /* Cancelability state and type. */ |
| 782 | Bool cancel_st; /* False==PTH_CANCEL_DISABLE; True==.._ENABLE */ |
| 783 | Bool cancel_ty; /* False==PTH_CANC_ASYNCH; True==..._DEFERRED */ |
| 784 | |
| 785 | /* Pointer to fn to call to do cancellation. Indicates whether |
| 786 | or not cancellation is pending. If NULL, not pending. Else |
| 787 | should be &thread_exit_wrapper(), indicating that |
| 788 | cancallation is pending. */ |
| 789 | void (*cancel_pend)(void*); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 790 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 791 | /* The cleanup stack. */ |
| 792 | Int custack_used; |
| 793 | CleanupEntry custack[VG_N_CLEANUPSTACK]; |
sewardj | 5f07b66 | 2002-04-23 16:52:51 +0000 | [diff] [blame] | 794 | |
sewardj | 00a66b1 | 2002-10-12 16:42:35 +0000 | [diff] [blame] | 795 | /* A pointer to the thread's-specific-data. This is handled almost |
| 796 | entirely from vg_libpthread.c. We just provide hooks to get and |
| 797 | set this ptr. This is either NULL, indicating the thread has |
| 798 | read/written none of its specifics so far, OR points to a |
| 799 | void*[VG_N_THREAD_KEYS], allocated and deallocated in |
| 800 | vg_libpthread.c. */ |
| 801 | void** specifics_ptr; |
sewardj | b48e500 | 2002-05-13 00:16:03 +0000 | [diff] [blame] | 802 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 803 | /* This thread's blocked-signals mask. Semantics is that for a |
| 804 | signal to be delivered to this thread, the signal must not be |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 805 | blocked by this signal mask. If more than one thread accepts a |
| 806 | signal, then it will be delivered to one at random. If all |
| 807 | threads block the signal, it will remain pending until either a |
| 808 | thread unblocks it or someone uses sigwaitsig/sigtimedwait. |
| 809 | |
| 810 | sig_mask reflects what the client told us its signal mask should |
| 811 | be, but isn't necessarily the current signal mask of the proxy |
| 812 | LWP: it may have more signals blocked because of signal |
| 813 | handling, or it may be different because of sigsuspend. |
| 814 | */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 815 | vki_sigset_t sig_mask; |
sewardj | b48e500 | 2002-05-13 00:16:03 +0000 | [diff] [blame] | 816 | |
fitzhardinge | f0dd7e1 | 2004-01-16 02:17:30 +0000 | [diff] [blame] | 817 | /* Effective signal mask. This is the mask which currently |
| 818 | applies; it may be different from sig_mask while a signal |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 819 | handler is running. |
| 820 | */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 821 | vki_sigset_t eff_sig_mask; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 822 | |
thughes | 8abf392 | 2004-10-16 10:59:49 +0000 | [diff] [blame] | 823 | /* Signal queue. This is used when the kernel doesn't route |
| 824 | signals properly in order to remember the signal information |
| 825 | while we are routing the signal. It is a circular queue with |
| 826 | insertions performed at the head and removals at the tail. |
| 827 | */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 828 | vki_siginfo_t sigqueue[VG_N_SIGNALQUEUE]; |
thughes | 8abf392 | 2004-10-16 10:59:49 +0000 | [diff] [blame] | 829 | Int sigqueue_head; |
| 830 | Int sigqueue_tail; |
| 831 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 832 | /* Stacks. When a thread slot is freed, we don't deallocate its |
| 833 | stack; we just leave it lying around for the next use of the |
| 834 | slot. If the next use of the slot requires a larger stack, |
| 835 | only then is the old one deallocated and a new one |
| 836 | allocated. |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 837 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 838 | For the main thread (threadid == 0), this mechanism doesn't |
| 839 | apply. We don't know the size of the stack since we didn't |
| 840 | allocate it, and furthermore we never reallocate it. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 841 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 842 | /* The allocated size of this thread's stack (permanently zero |
| 843 | if this is ThreadId == 0, since we didn't allocate its stack) */ |
| 844 | UInt stack_size; |
sewardj | 1e8cdc9 | 2002-04-18 11:37:52 +0000 | [diff] [blame] | 845 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 846 | /* Address of the lowest word in this thread's stack. NULL means |
| 847 | not allocated yet. |
| 848 | */ |
| 849 | Addr stack_base; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 850 | |
thughes | daa3456 | 2004-06-27 12:48:53 +0000 | [diff] [blame] | 851 | /* The allocated size of this thread's stack's guard area (permanently |
| 852 | zero if this is ThreadId == 0, since we didn't allocate its stack) */ |
| 853 | UInt stack_guard_size; |
| 854 | |
sewardj | 92a5956 | 2002-09-30 00:53:10 +0000 | [diff] [blame] | 855 | /* Address of the highest legitimate word in this stack. This is |
| 856 | used for error messages only -- not critical for execution |
| 857 | correctness. Is is set for all stacks, specifically including |
| 858 | ThreadId == 0 (the main thread). */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 859 | Addr stack_highest_word; |
| 860 | |
fitzhardinge | 98c4dc0 | 2004-03-16 08:27:29 +0000 | [diff] [blame] | 861 | /* Alternate signal stack */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 862 | vki_stack_t altstack; |
fitzhardinge | 98c4dc0 | 2004-03-16 08:27:29 +0000 | [diff] [blame] | 863 | |
nethercote | c06e213 | 2004-09-03 13:45:29 +0000 | [diff] [blame] | 864 | /* Architecture-specific thread state */ |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 865 | ThreadArchState arch; |
sewardj | 004e8ca | 2005-02-28 17:27:04 +0000 | [diff] [blame] | 866 | |
| 867 | /* Used in the syscall handlers. Set to True to indicate that the |
| 868 | PRE routine for a syscall has set the syscall result already and |
| 869 | so the syscall does not need to be handed to the kernel. */ |
| 870 | Bool syscall_result_set; |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 871 | }; |
| 872 | //ThreadState; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 873 | |
| 874 | |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 875 | /* The thread table. */ |
| 876 | extern ThreadState VG_(threads)[VG_N_THREADS]; |
| 877 | |
| 878 | /* Check that tid is in range and denotes a non-Empty thread. */ |
sewardj | b48e500 | 2002-05-13 00:16:03 +0000 | [diff] [blame] | 879 | extern Bool VG_(is_valid_tid) ( ThreadId tid ); |
| 880 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 881 | /* Get the ThreadState for a particular thread */ |
| 882 | extern ThreadState *VG_(get_ThreadState)(ThreadId tid); |
| 883 | |
sewardj | ccef2e6 | 2002-05-29 19:26:32 +0000 | [diff] [blame] | 884 | /* Nuke all threads except tid. */ |
| 885 | extern void VG_(nuke_all_threads_except) ( ThreadId me ); |
| 886 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 887 | /* Give a hint to the scheduler that it may be a good time to find a |
| 888 | new runnable thread. If prefer_sched != VG_INVALID_THREADID, then |
| 889 | try to schedule that thread. |
| 890 | */ |
| 891 | extern void VG_(need_resched) ( ThreadId prefer_sched ); |
| 892 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 893 | /* Return codes from the scheduler. */ |
| 894 | typedef |
sewardj | 7e87e38 | 2002-05-03 19:09:05 +0000 | [diff] [blame] | 895 | enum { |
| 896 | VgSrc_Deadlock, /* no runnable threads and no prospect of any |
| 897 | even if we wait for a long time */ |
| 898 | VgSrc_ExitSyscall, /* client called exit(). This is the normal |
| 899 | route out. */ |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 900 | VgSrc_FatalSig /* Killed by the default action of a fatal |
| 901 | signal */ |
sewardj | 7e87e38 | 2002-05-03 19:09:05 +0000 | [diff] [blame] | 902 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 903 | VgSchedReturnCode; |
| 904 | |
sewardj | 7e87e38 | 2002-05-03 19:09:05 +0000 | [diff] [blame] | 905 | |
nethercote | 238a3c3 | 2004-08-09 13:13:31 +0000 | [diff] [blame] | 906 | // The scheduler. 'fatal_sigNo' is only set if VgSrc_FatalSig is returned. |
| 907 | extern VgSchedReturnCode VG_(scheduler) |
| 908 | ( Int* exit_code, ThreadId* last_run_thread, Int* fatal_sigNo ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 909 | |
| 910 | extern void VG_(scheduler_init) ( void ); |
| 911 | |
sewardj | 15a43e1 | 2002-04-17 19:35:12 +0000 | [diff] [blame] | 912 | extern void VG_(pp_sched_status) ( void ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 913 | |
nethercote | 75d2624 | 2004-08-01 22:59:18 +0000 | [diff] [blame] | 914 | // Longjmp back to the scheduler and thus enter the sighandler immediately. |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 915 | extern void VG_(resume_scheduler) ( Int sigNo, vki_siginfo_t *info ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 916 | |
nethercote | 238a3c3 | 2004-08-09 13:13:31 +0000 | [diff] [blame] | 917 | // Longjmp, ending the scheduler, when a fatal signal occurs in the client. |
| 918 | extern void VG_(scheduler_handle_fatal_signal)( Int sigNo ); |
| 919 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 920 | /* The red-zone size which we put at the bottom (highest address) of |
| 921 | thread stacks, for paranoia reasons. This can be arbitrary, and |
| 922 | doesn't really need to be set at compile time. */ |
nethercote | 6e4f9dc | 2004-07-30 23:36:37 +0000 | [diff] [blame] | 923 | #define VG_AR_CLIENT_STACKBASE_REDZONE_SZB 16 |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 924 | |
nethercote | aff1c77 | 2004-09-13 16:11:09 +0000 | [diff] [blame] | 925 | // Write a value to a client's thread register, and shadow (if necessary). |
| 926 | // Note that there are some further similar macros in the arch- and |
| 927 | // platform-specific parts; these ones are the totally generic ones. |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 928 | #define SET_THREAD_REG( zztid, zzval, zzGETREG, zzevent, zzargs... ) \ |
| 929 | do { zzGETREG(VG_(threads)[zztid].arch) = (zzval); \ |
| 930 | VG_TRACK( zzevent, ##zzargs ); \ |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 931 | } while (0) |
| 932 | |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 933 | #define SET_CLREQ_RETVAL(zztid, zzval) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 934 | SET_THREAD_REG(zztid, zzval, CLREQ_RET, post_reg_write, \ |
| 935 | Vg_CoreClientReq, zztid, O_CLREQ_RET, sizeof(UWord)) |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 936 | |
| 937 | #define SET_CLCALL_RETVAL(zztid, zzval, f) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 938 | SET_THREAD_REG(zztid, zzval, CLREQ_RET, post_reg_write_clientcall_return, \ |
| 939 | zztid, O_CLREQ_RET, sizeof(UWord), f) |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 940 | |
| 941 | #define SET_PTHREQ_ESP(zztid, zzval) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 942 | SET_THREAD_REG(zztid, zzval, STACK_PTR, post_reg_write, \ |
| 943 | Vg_CorePThread, zztid, O_STACK_PTR, sizeof(Addr)) |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 944 | |
| 945 | #define SET_PTHREQ_RETVAL(zztid, zzval) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 946 | SET_THREAD_REG(zztid, zzval, PTHREQ_RET, post_reg_write, \ |
| 947 | Vg_CorePThread, zztid, O_PTHREQ_RET, sizeof(UWord)) |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 948 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 949 | |
| 950 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 951 | Exports of vg_signals.c |
| 952 | ------------------------------------------------------------------ */ |
| 953 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 954 | extern Bool VG_(do_signal_routing); /* whether scheduler LWP has to route signals */ |
| 955 | |
| 956 | /* RT signal allocation */ |
| 957 | extern Int VG_(sig_rtmin); |
| 958 | extern Int VG_(sig_rtmax); |
| 959 | extern Int VG_(sig_alloc_rtsig) ( Int high ); |
| 960 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 961 | extern void VG_(sigstartup_actions) ( void ); |
| 962 | |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 963 | extern void VG_(deliver_signal) ( ThreadId tid, const vki_siginfo_t *, Bool async ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 964 | extern void VG_(unblock_host_signal) ( Int sigNo ); |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 965 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 966 | extern Bool VG_(is_sig_ign) ( Int sigNo ); |
| 967 | |
| 968 | /* Route pending signals from the scheduler LWP to the appropriate |
| 969 | thread LWP. */ |
| 970 | extern void VG_(route_signals) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 971 | |
| 972 | /* Fake system calls for signal handling. */ |
nethercote | 93d9aa1 | 2004-11-10 19:08:31 +0000 | [diff] [blame] | 973 | extern void VG_(do_sys_sigaltstack) ( ThreadId tid ); |
| 974 | extern void VG_(do_sys_sigaction) ( ThreadId tid ); |
| 975 | extern void VG_(do_sys_sigprocmask) ( ThreadId tid, Int how, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 976 | vki_sigset_t* set, |
| 977 | vki_sigset_t* oldset ); |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 978 | extern void VG_(do_pthread_sigmask_SCSS_upd) ( ThreadId tid, Int how, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 979 | vki_sigset_t* set, |
| 980 | vki_sigset_t* oldset ); |
sewardj | efbfcdf | 2002-06-19 17:35:45 +0000 | [diff] [blame] | 981 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 982 | /* Modify the current thread's state once we have detected it is |
| 983 | returning from a signal handler. */ |
nethercote | aff1c77 | 2004-09-13 16:11:09 +0000 | [diff] [blame] | 984 | extern Bool VG_(signal_returns) ( ThreadId tid ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 985 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 986 | /* Handy utilities to block/restore all host signals. */ |
| 987 | extern void VG_(block_all_host_signals) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 988 | ( /* OUT */ vki_sigset_t* saved_mask ); |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 989 | extern void VG_(restore_all_host_signals) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 990 | ( /* IN */ vki_sigset_t* saved_mask ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 991 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 992 | extern void VG_(kill_self)(Int sigNo); |
| 993 | |
fitzhardinge | f1beb25 | 2004-03-16 09:49:08 +0000 | [diff] [blame] | 994 | /* These function synthesize a fault, as if the running instruction |
| 995 | had had a fault. These functions do not return - they longjmp back |
| 996 | into the scheduler so the signal can be delivered. */ |
| 997 | extern void VG_(synth_fault) (ThreadId tid); |
| 998 | extern void VG_(synth_fault_mapping)(ThreadId tid, Addr addr); |
| 999 | extern void VG_(synth_fault_perms) (ThreadId tid, Addr addr); |
sewardj | 5e2f001 | 2004-12-13 14:10:34 +0000 | [diff] [blame] | 1000 | extern void VG_(synth_sigill) (ThreadId tid, Addr addr); |
fitzhardinge | f1beb25 | 2004-03-16 09:49:08 +0000 | [diff] [blame] | 1001 | |
nethercote | 759dda3 | 2004-08-07 18:16:56 +0000 | [diff] [blame] | 1002 | extern void VG_(get_sigstack_bounds)( Addr* low, Addr* high ); |
fitzhardinge | f1beb25 | 2004-03-16 09:49:08 +0000 | [diff] [blame] | 1003 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 1004 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1005 | /* --------------------------------------------------------------------- |
| 1006 | Exports of vg_mylibc.c |
| 1007 | ------------------------------------------------------------------ */ |
| 1008 | |
njn | ca0518d | 2004-11-26 19:34:36 +0000 | [diff] [blame] | 1009 | // Useful for making failing stubs, when certain things haven't yet been |
| 1010 | // implemented. |
| 1011 | #define I_die_here \ |
| 1012 | VG_(core_assert_fail) ("Unimplemented functionality", \ |
| 1013 | __FILE__, __LINE__, __PRETTY_FUNCTION__) |
| 1014 | |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 1015 | #define vg_assert(expr) \ |
| 1016 | ((void) ((expr) ? 0 : \ |
| 1017 | (VG_(core_assert_fail) (VG__STRING(expr), \ |
| 1018 | __FILE__, __LINE__, \ |
| 1019 | __PRETTY_FUNCTION__), 0))) |
| 1020 | __attribute__ ((__noreturn__)) |
daywalker | 3222e0a | 2003-09-18 01:39:50 +0000 | [diff] [blame] | 1021 | extern void VG_(core_assert_fail) ( const Char* expr, const Char* file, |
| 1022 | Int line, const Char* fn ); |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 1023 | __attribute__ ((__noreturn__)) |
| 1024 | extern void VG_(core_panic) ( Char* str ); |
thughes | 5876d55 | 2004-09-26 18:44:06 +0000 | [diff] [blame] | 1025 | __attribute__ ((__noreturn__)) |
| 1026 | extern void VG_(core_panic_at) ( Char* str, ExeContext *ec ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1027 | |
nethercote | 05675c8 | 2004-08-04 10:37:49 +0000 | [diff] [blame] | 1028 | /* Tools use VG_(strdup)() which doesn't expose ArenaId */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1029 | extern Char* VG_(arena_strdup) ( ArenaId aid, const Char* s); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1030 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1031 | extern Int VG_(fcntl) ( Int fd, Int cmd, Int arg ); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1032 | extern Int VG_(poll)( struct vki_pollfd *, UInt nfds, Int timeout); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1033 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1034 | /* system/mman.h */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1035 | extern void* VG_(mmap)( void* start, SizeT length, UInt prot, UInt flags, |
nethercote | 5b9fafd | 2004-11-04 18:39:22 +0000 | [diff] [blame] | 1036 | UInt sf_flags, UInt fd, OffT offset ); |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1037 | extern Int VG_(munmap)( void* start, SizeT length ); |
| 1038 | extern Int VG_(mprotect)( void *start, SizeT length, UInt prot ); |
sewardj | 79048ce | 2005-02-18 08:28:32 +0000 | [diff] [blame] | 1039 | extern Int VG_(mprotect_native)( void *start, SizeT length, UInt prot ); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1040 | |
| 1041 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1042 | /* Move an fd into the Valgrind-safe range */ |
| 1043 | Int VG_(safe_fd)(Int oldfd); |
| 1044 | |
sewardj | 570f890 | 2002-11-03 11:44:36 +0000 | [diff] [blame] | 1045 | extern Int VG_(write_socket)( Int sd, void *msg, Int count ); |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 1046 | |
| 1047 | /* --- Connecting over the network --- */ |
| 1048 | extern Int VG_(connect_via_socket)( UChar* str ); |
| 1049 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1050 | /* Environment manipulations */ |
nethercote | 60a96c5 | 2004-08-03 13:08:31 +0000 | [diff] [blame] | 1051 | extern Char **VG_(env_setenv) ( Char ***envp, const Char* varname, |
| 1052 | const Char *val ); |
| 1053 | extern void VG_(env_unsetenv) ( Char **env, const Char *varname ); |
| 1054 | extern void VG_(env_remove_valgrind_env_stuff) ( Char** env ); |
sewardj | 570f890 | 2002-11-03 11:44:36 +0000 | [diff] [blame] | 1055 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 1056 | |
sewardj | 570f890 | 2002-11-03 11:44:36 +0000 | [diff] [blame] | 1057 | /* --------------------------------------------------------------------- |
| 1058 | Exports of vg_message.c |
| 1059 | ------------------------------------------------------------------ */ |
| 1060 | |
| 1061 | /* Low-level -- send bytes directly to the message sink. Do not |
| 1062 | use. */ |
| 1063 | extern void VG_(send_bytes_to_logging_sink) ( Char* msg, Int nbytes ); |
| 1064 | |
nethercote | d1da90e | 2004-08-03 17:26:39 +0000 | [diff] [blame] | 1065 | // Functions for printing from code within Valgrind, but which runs on the |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1066 | // sim'd CPU. Defined here because needed for vg_libpthread.c, |
| 1067 | // vg_replace_malloc.c, plus the rest of the core. The weak attribute |
| 1068 | // ensures the multiple definitions are not a problem. They must be functions |
| 1069 | // rather than macros so that va_list can be used. |
| 1070 | |
| 1071 | __attribute__((weak)) |
| 1072 | int |
| 1073 | VALGRIND_INTERNAL_PRINTF(char *format, ...) |
| 1074 | { |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1075 | UWord _qzz_res = 0; |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1076 | va_list vargs; |
| 1077 | va_start(vargs, format); |
| 1078 | VALGRIND_MAGIC_SEQUENCE(_qzz_res, 0, VG_USERREQ__INTERNAL_PRINTF, |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1079 | (UWord)format, (UWord)vargs, 0, 0); |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1080 | va_end(vargs); |
| 1081 | return _qzz_res; |
| 1082 | } |
| 1083 | |
| 1084 | __attribute__((weak)) |
| 1085 | int |
| 1086 | VALGRIND_INTERNAL_PRINTF_BACKTRACE(char *format, ...) |
| 1087 | { |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1088 | UWord _qzz_res = 0; |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1089 | va_list vargs; |
| 1090 | va_start(vargs, format); |
| 1091 | VALGRIND_MAGIC_SEQUENCE(_qzz_res, 0, VG_USERREQ__INTERNAL_PRINTF_BACKTRACE, |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1092 | (UWord)format, (UWord)vargs, 0, 0); |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1093 | va_end(vargs); |
| 1094 | return _qzz_res; |
| 1095 | } |
| 1096 | |
nethercote | d1da90e | 2004-08-03 17:26:39 +0000 | [diff] [blame] | 1097 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1098 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1099 | Exports of vg_demangle.c |
| 1100 | ------------------------------------------------------------------ */ |
| 1101 | |
| 1102 | extern void VG_(demangle) ( Char* orig, Char* result, Int result_size ); |
| 1103 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1104 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1105 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1106 | Exports of vg_translate.c |
| 1107 | ------------------------------------------------------------------ */ |
| 1108 | |
sewardj | fa8ec11 | 2005-01-19 11:55:34 +0000 | [diff] [blame] | 1109 | extern |
| 1110 | Bool VG_(translate) ( ThreadId tid, |
| 1111 | Addr64 orig_addr, |
| 1112 | Bool debugging_translation, |
| 1113 | Int debugging_verbosity ); |
sewardj | b5ff83e | 2002-12-01 19:40:49 +0000 | [diff] [blame] | 1114 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1115 | /* --------------------------------------------------------------------- |
| 1116 | Exports of vg_execontext.c. |
| 1117 | ------------------------------------------------------------------ */ |
| 1118 | |
nethercote | 4ad7431 | 2004-10-26 09:59:49 +0000 | [diff] [blame] | 1119 | /* Records the PC and a bit of the call chain. The first 4 IP |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1120 | values are used in comparisons do remove duplicate errors, and for |
| 1121 | comparing against suppression specifications. The rest are purely |
| 1122 | informational (but often important). */ |
| 1123 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1124 | struct _ExeContext { |
| 1125 | struct _ExeContext * next; |
| 1126 | /* Variable-length array. The size is VG_(clo_backtrace_size); at |
nethercote | 86c5dcb | 2004-09-05 21:32:37 +0000 | [diff] [blame] | 1127 | least 1, at most VG_DEEPEST_BACKTRACE. [0] is the current IP, |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1128 | [1] is its caller, [2] is the caller of [1], etc. */ |
nethercote | 86c5dcb | 2004-09-05 21:32:37 +0000 | [diff] [blame] | 1129 | Addr ips[0]; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1130 | }; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1131 | |
| 1132 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1133 | /* Print stats (informational only). */ |
nethercote | 3a42fb8 | 2004-08-03 18:08:50 +0000 | [diff] [blame] | 1134 | extern void VG_(print_ExeContext_stats) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1135 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1136 | /* Like VG_(get_ExeContext), but with a slightly different type */ |
nethercote | 3d4a0b1 | 2004-09-06 15:14:46 +0000 | [diff] [blame] | 1137 | extern ExeContext* VG_(get_ExeContext2) ( Addr ip, Addr fp, |
| 1138 | Addr fp_min, Addr fp_max ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1139 | |
| 1140 | |
| 1141 | /* --------------------------------------------------------------------- |
| 1142 | Exports of vg_errcontext.c. |
| 1143 | ------------------------------------------------------------------ */ |
| 1144 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1145 | extern void VG_(load_suppressions) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1146 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1147 | extern void VG_(record_pthread_error) ( ThreadId tid, Char* msg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1148 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1149 | extern void VG_(show_all_errors) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1150 | |
nethercote | f2b1148 | 2004-08-02 12:36:01 +0000 | [diff] [blame] | 1151 | extern Bool VG_(is_action_requested) ( Char* action, Bool* clo ); |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 1152 | |
nethercote | f2b1148 | 2004-08-02 12:36:01 +0000 | [diff] [blame] | 1153 | extern UInt VG_(get_n_errs_found) ( void ); |
njn | 47363ab | 2003-04-21 13:24:40 +0000 | [diff] [blame] | 1154 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 1155 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1156 | /* --------------------------------------------------------------------- |
| 1157 | Exports of vg_procselfmaps.c |
| 1158 | ------------------------------------------------------------------ */ |
| 1159 | |
njn | fa1016e | 2003-09-25 17:54:11 +0000 | [diff] [blame] | 1160 | /* Reads /proc/self/maps into a static buffer which can be parsed by |
| 1161 | VG_(parse_procselfmaps)(). */ |
| 1162 | extern void VG_(read_procselfmaps) ( void ); |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1163 | |
| 1164 | /* Parses /proc/self/maps, calling `record_mapping' for each entry. If |
| 1165 | `read_from_file' is True, /proc/self/maps is read directly, otherwise |
| 1166 | it's read from the buffer filled by VG_(read_procselfmaps_contents)(). */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1167 | extern |
njn | fa1016e | 2003-09-25 17:54:11 +0000 | [diff] [blame] | 1168 | void VG_(parse_procselfmaps) ( |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1169 | void (*record_mapping)( Addr addr, SizeT len, Char rr, Char ww, Char xx, |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1170 | UInt dev, UInt ino, ULong foff, |
| 1171 | const UChar *filename ) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1172 | |
| 1173 | |
| 1174 | /* --------------------------------------------------------------------- |
| 1175 | Exports of vg_symtab2.c |
| 1176 | ------------------------------------------------------------------ */ |
| 1177 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1178 | typedef struct _Segment Segment; |
| 1179 | |
| 1180 | extern Bool VG_(is_object_file) ( const void *hdr ); |
nethercote | 4ad7431 | 2004-10-26 09:59:49 +0000 | [diff] [blame] | 1181 | extern void VG_(mini_stack_dump) ( Addr ips[], UInt n_ips ); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1182 | extern SegInfo * VG_(read_seg_symbols) ( Segment *seg ); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1183 | extern void VG_(symtab_incref) ( SegInfo * ); |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1184 | extern void VG_(symtab_decref) ( SegInfo *, Addr a ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1185 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1186 | extern Bool VG_(get_fnname_nodemangle)( Addr a, Char* fnname, Int n_fnname ); |
sewardj | 25c7c3a | 2003-07-10 00:17:58 +0000 | [diff] [blame] | 1187 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1188 | /* Set up some default redirects */ |
| 1189 | extern void VG_(setup_code_redirect_table) ( void ); |
sewardj | 25c7c3a | 2003-07-10 00:17:58 +0000 | [diff] [blame] | 1190 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1191 | /* Redirection machinery */ |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1192 | extern Addr VG_(code_redirect) ( Addr orig ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1193 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 1194 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1195 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1196 | Exports of vg_main.c |
| 1197 | ------------------------------------------------------------------ */ |
| 1198 | |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 1199 | /* Tell the logging mechanism whether we are logging to a file |
| 1200 | descriptor or a socket descriptor. */ |
| 1201 | extern Bool VG_(logging_to_filedes); |
| 1202 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1203 | /* Sanity checks which may be done at any time. The scheduler decides when. */ |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 1204 | extern void VG_(sanity_check_general) ( Bool force_expensive ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1205 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1206 | /* Address space */ |
| 1207 | extern Addr VG_(client_base); /* client address space limits */ |
| 1208 | extern Addr VG_(client_end); |
| 1209 | extern Addr VG_(client_mapbase); /* base of mappings */ |
| 1210 | extern Addr VG_(clstk_base); /* client stack range */ |
| 1211 | extern Addr VG_(clstk_end); |
fitzhardinge | 9236079 | 2003-12-24 10:11:11 +0000 | [diff] [blame] | 1212 | extern Addr VG_(client_trampoline_code); |
| 1213 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1214 | extern Addr VG_(brk_base); /* start of brk */ |
| 1215 | extern Addr VG_(brk_limit); /* current brk */ |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 1216 | extern Addr VG_(shadow_base); /* tool's shadow memory */ |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1217 | extern Addr VG_(shadow_end); |
| 1218 | extern Addr VG_(valgrind_base); /* valgrind's address range */ |
nethercote | 820bd8c | 2004-09-07 23:04:49 +0000 | [diff] [blame] | 1219 | extern Addr VG_(valgrind_last); // Nb: last byte, rather than one past the end |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1220 | |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1221 | extern struct vki_rlimit VG_(client_rlimit_data); /* client's original rlimit data */ |
| 1222 | extern struct vki_rlimit VG_(client_rlimit_stack); /* client's original rlimit stack */ |
fitzhardinge | b50068f | 2004-02-24 23:42:55 +0000 | [diff] [blame] | 1223 | |
fitzhardinge | a49f9b5 | 2003-12-16 22:26:45 +0000 | [diff] [blame] | 1224 | /* client executable file descriptor */ |
| 1225 | extern Int VG_(clexecfd); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1226 | |
nethercote | f6a1d50 | 2004-08-09 12:21:57 +0000 | [diff] [blame] | 1227 | // Help set up the child used when doing execve() with --trace-children=yes |
| 1228 | Char* VG_(build_child_VALGRINDCLO) ( Char* exename ); |
| 1229 | Char* VG_(build_child_exename) ( void ); |
| 1230 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1231 | /* Called when some unhandleable client behaviour is detected. |
| 1232 | Prints a msg and aborts. */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1233 | extern void VG_(unimplemented) ( Char* msg ) |
| 1234 | __attribute__((__noreturn__)); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1235 | |
nethercote | 04d0fbc | 2004-01-26 16:48:06 +0000 | [diff] [blame] | 1236 | /* Something of a function looking for a home ... start up debugger. */ |
njn | c616819 | 2004-11-29 13:54:10 +0000 | [diff] [blame] | 1237 | extern void VG_(start_debugger) ( ThreadId tid ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1238 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1239 | /* Counts downwards in vg_run_innerloop. */ |
| 1240 | extern UInt VG_(dispatch_ctr); |
| 1241 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1242 | /* Instruction pointer guest state offset, used by $VG_ARCH/dispatch.S. */ |
njn | 87c9812 | 2004-11-30 23:32:01 +0000 | [diff] [blame] | 1243 | extern OffT VG_(instr_ptr_offset); |
njn | 16de557 | 2004-11-27 14:27:21 +0000 | [diff] [blame] | 1244 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1245 | /* Stats ... */ |
nethercote | 844e712 | 2004-08-02 15:27:22 +0000 | [diff] [blame] | 1246 | extern void VG_(print_scheduler_stats) ( void ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1247 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 1248 | /* Indicates what arch and subarch we are running on. */ |
| 1249 | extern VexArch VG_(vex_arch); |
| 1250 | extern VexSubArch VG_(vex_subarch); |
| 1251 | |
nethercote | 2e05c33 | 2004-09-06 16:43:37 +0000 | [diff] [blame] | 1252 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1253 | /* --------------------------------------------------------------------- |
| 1254 | Exports of vg_memory.c |
| 1255 | ------------------------------------------------------------------ */ |
| 1256 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1257 | /* A Segment is mapped piece of client memory. This covers all kinds |
| 1258 | of mapped memory (exe, brk, mmap, .so, shm, stack, etc) |
| 1259 | |
| 1260 | We try to encode everything we know about a particular segment here. |
| 1261 | */ |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1262 | #define SF_FIXED (1 << 0) // client asked for MAP_FIXED |
| 1263 | #define SF_SHARED (1 << 1) // shared |
| 1264 | #define SF_SHM (1 << 2) // SYSV SHM (also SF_SHARED) |
| 1265 | #define SF_MMAP (1 << 3) // mmap memory |
| 1266 | #define SF_FILE (1 << 4) // mapping is backed by a file |
| 1267 | #define SF_STACK (1 << 5) // is a stack |
| 1268 | #define SF_GROWDOWN (1 << 6) // segment grows down |
| 1269 | #define SF_GROWUP (1 << 7) // segment grows up |
| 1270 | #define SF_EXEC (1 << 8) // segment created by exec |
| 1271 | #define SF_DYNLIB (1 << 9) // mapped from dynamic library |
| 1272 | #define SF_NOSYMS (1 << 10) // don't load syms, even if present |
| 1273 | #define SF_BRK (1 << 11) // brk segment |
| 1274 | #define SF_CORE (1 << 12) // allocated by core on behalf of the client |
| 1275 | #define SF_VALGRIND (1 << 13) // a valgrind-internal mapping - not in client |
| 1276 | #define SF_CODE (1 << 14) // segment contains cached code |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1277 | |
| 1278 | struct _Segment { |
njn | f9dc619 | 2004-11-30 13:20:44 +0000 | [diff] [blame] | 1279 | UInt prot; // VKI_PROT_* |
| 1280 | UInt flags; // SF_* |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1281 | |
njn | f9dc619 | 2004-11-30 13:20:44 +0000 | [diff] [blame] | 1282 | Addr addr; // mapped addr (page aligned) |
| 1283 | SizeT len; // size of mapping (page aligned) |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1284 | |
njn | f9dc619 | 2004-11-30 13:20:44 +0000 | [diff] [blame] | 1285 | // These are valid if (flags & SF_FILE) |
| 1286 | OffT offset; // file offset |
| 1287 | const Char* filename; // filename (NULL if unknown) |
sewardj | 79048ce | 2005-02-18 08:28:32 +0000 | [diff] [blame] | 1288 | Int fnIdx; // filename table index (-1 if unknown) |
njn | f9dc619 | 2004-11-30 13:20:44 +0000 | [diff] [blame] | 1289 | UInt dev; // device |
| 1290 | UInt ino; // inode |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1291 | |
njn | f9dc619 | 2004-11-30 13:20:44 +0000 | [diff] [blame] | 1292 | SegInfo* symtab; // symbol table |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1293 | }; |
| 1294 | |
| 1295 | /* segment mapped from a file descriptor */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1296 | extern void VG_(map_fd_segment) (Addr addr, SizeT len, UInt prot, UInt flags, |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1297 | Int fd, ULong off, const Char *filename); |
| 1298 | |
| 1299 | /* segment mapped from a file */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1300 | extern void VG_(map_file_segment)(Addr addr, SizeT len, UInt prot, UInt flags, |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1301 | UInt dev, UInt ino, ULong off, const Char *filename); |
| 1302 | |
| 1303 | /* simple segment */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1304 | extern void VG_(map_segment) (Addr addr, SizeT len, UInt prot, UInt flags); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1305 | |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1306 | extern void VG_(unmap_range) (Addr addr, SizeT len); |
| 1307 | extern void VG_(mprotect_range)(Addr addr, SizeT len, UInt prot); |
| 1308 | extern Addr VG_(find_map_space)(Addr base, SizeT len, Bool for_client); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1309 | |
sewardj | 548be6d | 2005-02-16 01:31:37 +0000 | [diff] [blame] | 1310 | /* Find the segment containing a, or NULL if none. */ |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1311 | extern Segment *VG_(find_segment)(Addr a); |
sewardj | 548be6d | 2005-02-16 01:31:37 +0000 | [diff] [blame] | 1312 | |
| 1313 | /* a is an unmapped address (is checked). Find the next segment |
| 1314 | along in the address space, or NULL if none. */ |
| 1315 | extern Segment *VG_(find_segment_above_unmapped)(Addr a); |
| 1316 | |
| 1317 | /* a is a mapped address (in a segment, is checked). Find the |
| 1318 | next segment along. */ |
| 1319 | extern Segment *VG_(find_segment_above_mapped)(Addr a); |
| 1320 | |
sewardj | 1024cf7 | 2005-02-28 14:39:21 +0000 | [diff] [blame] | 1321 | extern Bool VG_(seg_contains)(const Segment *s, Addr ptr, SizeT size); |
| 1322 | extern Bool VG_(seg_overlaps)(const Segment *s, Addr ptr, SizeT size); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1323 | |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1324 | extern void VG_(pad_address_space) (void); |
thughes | 9aaebc3 | 2004-07-15 23:13:37 +0000 | [diff] [blame] | 1325 | extern void VG_(unpad_address_space)(void); |
| 1326 | |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1327 | extern REGPARM(2) |
| 1328 | void VG_(unknown_SP_update) ( Addr old_SP, Addr new_SP ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1329 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1330 | /* --------------------------------------------------------------------- |
| 1331 | Exports of vg_proxylwp.c |
| 1332 | ------------------------------------------------------------------ */ |
| 1333 | |
| 1334 | /* Issue a syscall for thread tid */ |
njn | c616819 | 2004-11-29 13:54:10 +0000 | [diff] [blame] | 1335 | extern Int VG_(sys_issue)(ThreadId tid); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1336 | |
| 1337 | extern void VG_(proxy_init) ( void ); |
| 1338 | extern void VG_(proxy_create) ( ThreadId tid ); |
| 1339 | extern void VG_(proxy_delete) ( ThreadId tid, Bool force ); |
| 1340 | extern void VG_(proxy_results) ( void ); |
sewardj | 0a785fd | 2004-11-24 21:24:24 +0000 | [diff] [blame] | 1341 | extern void VG_(proxy_sendsig) ( ThreadId fromTid, ThreadId toTid, Int signo ); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1342 | extern void VG_(proxy_setsigmask)(ThreadId tid); |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1343 | extern void VG_(proxy_sigack) ( ThreadId tid, const vki_sigset_t *); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1344 | extern void VG_(proxy_abort_syscall) ( ThreadId tid ); |
| 1345 | extern void VG_(proxy_waitsig) ( void ); |
fitzhardinge | 31ba905 | 2004-01-16 02:15:23 +0000 | [diff] [blame] | 1346 | extern void VG_(proxy_wait_sys) (ThreadId tid, Bool restart); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1347 | |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1348 | extern void VG_(proxy_shutdown) ( void ); // shut down the syscall workers |
| 1349 | extern Int VG_(proxy_resfd) ( void ); // FD something can select on to know |
| 1350 | // a syscall finished |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1351 | |
| 1352 | /* Sanity-check the whole proxy-LWP machinery */ |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 1353 | void VG_(sanity_check_proxy)(void); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1354 | |
| 1355 | /* Send a signal from a thread's proxy to the thread. This longjmps |
| 1356 | back into the proxy's main loop, so it doesn't return. */ |
| 1357 | __attribute__ ((__noreturn__)) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1358 | extern void VG_(proxy_handlesig)( const vki_siginfo_t *siginfo, |
nethercote | e5a3e2b | 2004-10-13 14:42:57 +0000 | [diff] [blame] | 1359 | Addr ip, Int sysnum ); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1360 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1361 | /* --------------------------------------------------------------------- |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1362 | Exports of vg_syscalls.c |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1363 | ------------------------------------------------------------------ */ |
| 1364 | |
sewardj | 79048ce | 2005-02-18 08:28:32 +0000 | [diff] [blame] | 1365 | extern HChar* VG_(resolve_filename_nodup)(Int fd); |
| 1366 | extern HChar* VG_(resolve_filename)(Int fd); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1367 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1368 | extern Bool VG_(pre_syscall) ( ThreadId tid ); |
fitzhardinge | 31ba905 | 2004-01-16 02:15:23 +0000 | [diff] [blame] | 1369 | extern void VG_(post_syscall)( ThreadId tid, Bool restart ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1370 | |
nethercote | 5b9fafd | 2004-11-04 18:39:22 +0000 | [diff] [blame] | 1371 | extern Bool VG_(is_kerror) ( Word res ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1372 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1373 | /* Internal atfork handlers */ |
| 1374 | typedef void (*vg_atfork_t)(ThreadId); |
| 1375 | extern void VG_(atfork)(vg_atfork_t pre, vg_atfork_t parent, vg_atfork_t child); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1376 | |
rjwalsh | f5f536f | 2003-11-17 17:45:00 +0000 | [diff] [blame] | 1377 | /* fd leakage calls. */ |
| 1378 | extern void VG_(init_preopened_fds) ( void ); |
nethercote | 3a42fb8 | 2004-08-03 18:08:50 +0000 | [diff] [blame] | 1379 | extern void VG_(show_open_fds) ( void ); |
rjwalsh | f5f536f | 2003-11-17 17:45:00 +0000 | [diff] [blame] | 1380 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1381 | // Return true if address range entirely contained within client |
| 1382 | // address space. |
| 1383 | Bool VG_(valid_client_addr)(Addr start, SizeT size, ThreadId tid, |
| 1384 | const Char *syscallname); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1385 | |
| 1386 | // Return true if we're allowed to use or create this fd. |
| 1387 | Bool VG_(fd_allowed)(Int fd, const Char *syscallname, ThreadId tid, Bool soft); |
| 1388 | |
njn | c616819 | 2004-11-29 13:54:10 +0000 | [diff] [blame] | 1389 | void VG_(record_fd_open)(ThreadId tid, Int fd, char *pathname); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1390 | |
| 1391 | // Flags describing syscall wrappers |
| 1392 | #define Special (1 << 0) |
| 1393 | #define MayBlock (1 << 1) |
| 1394 | #define NBRunInLWP (1 << 2) // non-blocking, but must run in LWP context |
| 1395 | #define PostOnFail (1 << 3) |
| 1396 | |
njn | 61fa0af | 2004-11-27 15:22:24 +0000 | [diff] [blame] | 1397 | // Templates for generating the PRE and POST macros. For ones that must be |
| 1398 | // publically visible, use an empty 'qual', 'prefix' should start with |
| 1399 | // "vgArch_", and there should be corresponding global declarations (like |
| 1400 | // the GEN_SYSCALL_WRAPPER ones below). Otherwise, use "static" for 'qual', |
| 1401 | // and "vgArch_" should not be in the 'prefix'. |
| 1402 | #define PRE_TEMPLATE(qual, prefix, name, f) \ |
| 1403 | qual UInt prefix##_##name##_flags = f; \ |
| 1404 | qual void prefix##_##name##_before(ThreadId tid, ThreadState *tst) |
| 1405 | #define POST_TEMPLATE(qual, prefix, name) \ |
| 1406 | qual void prefix##_##name##_after (ThreadId tid, ThreadState *tst) |
| 1407 | |
| 1408 | // This macro is used to write other macros which making writing syscall |
| 1409 | // tables easier. |
| 1410 | #define SYS_WRAPPER_ENTRY_X_(prefix, const, name) \ |
| 1411 | [const] = { &prefix##_##name##_flags, \ |
| 1412 | prefix##_##name##_before, NULL } |
| 1413 | #define SYS_WRAPPER_ENTRY_XY(prefix, const, name) \ |
| 1414 | [const] = { &prefix##_##name##_flags, \ |
| 1415 | prefix##_##name##_before, \ |
| 1416 | prefix##_##name##_after } |
| 1417 | |
| 1418 | // Macros for adding generic wrappers to a syscall table. |
| 1419 | #define GENX_(const, name) SYS_WRAPPER_ENTRY_X_(vgArch_gen, const, name) |
| 1420 | #define GENXY(const, name) SYS_WRAPPER_ENTRY_XY(vgArch_gen, const, name) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1421 | |
njn | 22cfccb | 2004-11-27 16:10:23 +0000 | [diff] [blame] | 1422 | // Space-saving macros for syscall wrappers |
| 1423 | #define SYSNO SYSCALL_NUM(tst->arch) // in PRE(x) |
| 1424 | #define RES SYSCALL_RET(tst->arch) // in POST(x) |
| 1425 | #define ARG1 SYSCALL_ARG1(tst->arch) |
| 1426 | #define ARG2 SYSCALL_ARG2(tst->arch) |
| 1427 | #define ARG3 SYSCALL_ARG3(tst->arch) |
| 1428 | #define ARG4 SYSCALL_ARG4(tst->arch) |
| 1429 | #define ARG5 SYSCALL_ARG5(tst->arch) |
| 1430 | #define ARG6 SYSCALL_ARG6(tst->arch) |
| 1431 | |
sewardj | 004e8ca | 2005-02-28 17:27:04 +0000 | [diff] [blame] | 1432 | #define SET_RESULT(val) \ |
| 1433 | do { PLATFORM_SET_SYSCALL_RESULT(tst->arch, (val)); \ |
| 1434 | tst->syscall_result_set = True; \ |
| 1435 | } while (0) |
njn | 22cfccb | 2004-11-27 16:10:23 +0000 | [diff] [blame] | 1436 | |
| 1437 | #define PRINT(format, args...) \ |
| 1438 | if (VG_(clo_trace_syscalls)) \ |
| 1439 | VG_(printf)(format, ## args) |
| 1440 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1441 | // Generic (platform-independent) syscall wrappers. These are generally |
| 1442 | // POSIX or something like that; those that are not POSIX are annotated |
| 1443 | // with what standards they are part of, as stated in the Linux man pages. |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1444 | // For many of them, it's unclear if they are generic, or Linux-specific, or |
| 1445 | // x86/Linux-specific, or something else again. |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1446 | // |
| 1447 | // Nb: This list may change over time... ones thought at first to be generic |
| 1448 | // may turn out not to be, and so be moved into OS-specific or |
| 1449 | // platform-specific files. If there's any doubt, I'm leaving them in here. |
| 1450 | // |
| 1451 | // Nb 2: if porting to a new OS, you should really check all these generic |
| 1452 | // wrappers to make sure they match your OS, painful as it might be. |
njn | 61fa0af | 2004-11-27 15:22:24 +0000 | [diff] [blame] | 1453 | // |
| 1454 | // For each generic ("gen") wrapper, we declare the pre-wrapper, the |
| 1455 | // post-wrapper (which is actually not always needed), and the associated |
| 1456 | // flags. |
| 1457 | #define GEN_SYSCALL_WRAPPER(x) \ |
| 1458 | extern UInt VGA_(gen_##x##_flags); \ |
| 1459 | extern void VGA_(gen_##x##_before)(ThreadId tid, ThreadState *tst); \ |
| 1460 | extern void VGA_(gen_##x##_after) (ThreadId tid, ThreadState *tst) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1461 | |
| 1462 | GEN_SYSCALL_WRAPPER(sys_ni_syscall); // * P -- unimplemented |
| 1463 | GEN_SYSCALL_WRAPPER(sys_exit); |
| 1464 | GEN_SYSCALL_WRAPPER(sys_fork); |
| 1465 | GEN_SYSCALL_WRAPPER(sys_read); |
| 1466 | GEN_SYSCALL_WRAPPER(sys_write); |
| 1467 | GEN_SYSCALL_WRAPPER(sys_open); |
| 1468 | GEN_SYSCALL_WRAPPER(sys_close); |
| 1469 | GEN_SYSCALL_WRAPPER(sys_waitpid); |
| 1470 | GEN_SYSCALL_WRAPPER(sys_creat); |
| 1471 | GEN_SYSCALL_WRAPPER(sys_link); |
| 1472 | GEN_SYSCALL_WRAPPER(sys_unlink); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1473 | GEN_SYSCALL_WRAPPER(sys_execve); // (*??) P |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1474 | GEN_SYSCALL_WRAPPER(sys_chdir); |
| 1475 | GEN_SYSCALL_WRAPPER(sys_time); |
| 1476 | GEN_SYSCALL_WRAPPER(sys_mknod); |
| 1477 | GEN_SYSCALL_WRAPPER(sys_chmod); |
| 1478 | GEN_SYSCALL_WRAPPER(sys_lseek); |
| 1479 | GEN_SYSCALL_WRAPPER(sys_getpid); |
| 1480 | GEN_SYSCALL_WRAPPER(sys_alarm); |
| 1481 | GEN_SYSCALL_WRAPPER(sys_pause); |
| 1482 | GEN_SYSCALL_WRAPPER(sys_utime); |
| 1483 | GEN_SYSCALL_WRAPPER(sys_access); |
| 1484 | GEN_SYSCALL_WRAPPER(sys_kill); |
| 1485 | GEN_SYSCALL_WRAPPER(sys_rename); |
| 1486 | GEN_SYSCALL_WRAPPER(sys_mkdir); |
| 1487 | GEN_SYSCALL_WRAPPER(sys_rmdir); |
| 1488 | GEN_SYSCALL_WRAPPER(sys_dup); |
| 1489 | GEN_SYSCALL_WRAPPER(sys_times); |
| 1490 | GEN_SYSCALL_WRAPPER(sys_fcntl); // POSIX (but complicated) |
| 1491 | GEN_SYSCALL_WRAPPER(sys_setpgid); |
| 1492 | GEN_SYSCALL_WRAPPER(sys_umask); |
| 1493 | GEN_SYSCALL_WRAPPER(sys_dup2); |
| 1494 | GEN_SYSCALL_WRAPPER(sys_getppid); |
| 1495 | GEN_SYSCALL_WRAPPER(sys_getpgrp); |
| 1496 | GEN_SYSCALL_WRAPPER(sys_setsid); |
| 1497 | GEN_SYSCALL_WRAPPER(sys_munmap); |
| 1498 | GEN_SYSCALL_WRAPPER(sys_truncate); |
| 1499 | GEN_SYSCALL_WRAPPER(sys_ftruncate); |
| 1500 | GEN_SYSCALL_WRAPPER(sys_fchmod); |
| 1501 | GEN_SYSCALL_WRAPPER(sys_msync); |
| 1502 | GEN_SYSCALL_WRAPPER(sys_readv); |
| 1503 | GEN_SYSCALL_WRAPPER(sys_writev); |
| 1504 | GEN_SYSCALL_WRAPPER(sys_getsid); |
| 1505 | GEN_SYSCALL_WRAPPER(sys_fdatasync); |
| 1506 | GEN_SYSCALL_WRAPPER(sys_mlock); |
| 1507 | GEN_SYSCALL_WRAPPER(sys_munlock); |
| 1508 | GEN_SYSCALL_WRAPPER(sys_mlockall); |
| 1509 | GEN_SYSCALL_WRAPPER(sys_munlockall); |
| 1510 | GEN_SYSCALL_WRAPPER(sys_sched_setparam); |
| 1511 | GEN_SYSCALL_WRAPPER(sys_sched_getparam); |
| 1512 | GEN_SYSCALL_WRAPPER(sys_sched_setscheduler); |
| 1513 | GEN_SYSCALL_WRAPPER(sys_sched_getscheduler); |
| 1514 | GEN_SYSCALL_WRAPPER(sys_sched_yield); |
| 1515 | GEN_SYSCALL_WRAPPER(sys_sched_get_priority_max); |
| 1516 | GEN_SYSCALL_WRAPPER(sys_sched_get_priority_min); |
| 1517 | GEN_SYSCALL_WRAPPER(sys_nanosleep); |
| 1518 | GEN_SYSCALL_WRAPPER(sys_mremap); // POSIX, but Linux arg order may be odd |
| 1519 | GEN_SYSCALL_WRAPPER(sys_getuid); |
| 1520 | GEN_SYSCALL_WRAPPER(sys_getgid); |
| 1521 | GEN_SYSCALL_WRAPPER(sys_geteuid); |
| 1522 | GEN_SYSCALL_WRAPPER(sys_getegid); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1523 | GEN_SYSCALL_WRAPPER(sys_getpgid); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1524 | GEN_SYSCALL_WRAPPER(sys_fsync); |
| 1525 | GEN_SYSCALL_WRAPPER(sys_wait4); |
| 1526 | GEN_SYSCALL_WRAPPER(sys_mprotect); |
| 1527 | GEN_SYSCALL_WRAPPER(sys_sigprocmask); |
| 1528 | GEN_SYSCALL_WRAPPER(sys_timer_create); // Linux: varies across archs? |
| 1529 | GEN_SYSCALL_WRAPPER(sys_timer_settime); |
| 1530 | GEN_SYSCALL_WRAPPER(sys_timer_gettime); |
| 1531 | GEN_SYSCALL_WRAPPER(sys_timer_getoverrun); |
| 1532 | GEN_SYSCALL_WRAPPER(sys_timer_delete); |
| 1533 | GEN_SYSCALL_WRAPPER(sys_clock_settime); |
| 1534 | GEN_SYSCALL_WRAPPER(sys_clock_gettime); |
| 1535 | GEN_SYSCALL_WRAPPER(sys_clock_getres); |
| 1536 | GEN_SYSCALL_WRAPPER(sys_getcwd); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1537 | GEN_SYSCALL_WRAPPER(sys_symlink); |
| 1538 | GEN_SYSCALL_WRAPPER(sys_getgroups); |
| 1539 | GEN_SYSCALL_WRAPPER(sys_setgroups); // SVr4, SVID, X/OPEN, 4.3BSD |
| 1540 | GEN_SYSCALL_WRAPPER(sys_chown); |
| 1541 | GEN_SYSCALL_WRAPPER(sys_setuid); |
| 1542 | GEN_SYSCALL_WRAPPER(sys_gettimeofday); |
| 1543 | GEN_SYSCALL_WRAPPER(sys_madvise); |
| 1544 | GEN_SYSCALL_WRAPPER(sys_sigpending); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1545 | |
| 1546 | // These ones aren't POSIX, but are in some standard and look reasonably |
| 1547 | // generic, and are the same for all architectures under Linux. |
| 1548 | GEN_SYSCALL_WRAPPER(sys_nice); // SVr4, SVID EXT, AT&T, X/OPEN, BSD 4.3 |
| 1549 | GEN_SYSCALL_WRAPPER(sys_sync); // SVr4, SVID, X/OPEN, BSD 4.3 |
| 1550 | GEN_SYSCALL_WRAPPER(sys_brk); // 4.3BSD |
| 1551 | GEN_SYSCALL_WRAPPER(sys_acct); // SVR4, non-POSIX |
| 1552 | GEN_SYSCALL_WRAPPER(sys_chroot); // SVr4, SVID, 4.4BSD, X/OPEN |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1553 | GEN_SYSCALL_WRAPPER(sys_readlink); // X/OPEN, 4.4BSD |
| 1554 | GEN_SYSCALL_WRAPPER(sys_fchdir); // SVr4, SVID, POSIX, X/OPEN, 4.4BSD |
| 1555 | GEN_SYSCALL_WRAPPER(sys_getdents); // SVr4,SVID |
| 1556 | GEN_SYSCALL_WRAPPER(sys_select); // 4.4BSD |
| 1557 | GEN_SYSCALL_WRAPPER(sys_flock); // 4.4BSD |
| 1558 | GEN_SYSCALL_WRAPPER(sys_poll); // XPG4-UNIX |
| 1559 | GEN_SYSCALL_WRAPPER(sys_getrusage); // SVr4, 4.3BSD |
| 1560 | GEN_SYSCALL_WRAPPER(sys_settimeofday); // SVr4, 4.3BSD (non-POSIX) |
| 1561 | GEN_SYSCALL_WRAPPER(sys_getpriority); // SVr4, 4.4BSD |
| 1562 | GEN_SYSCALL_WRAPPER(sys_setpriority); // SVr4, 4.4BSD |
| 1563 | GEN_SYSCALL_WRAPPER(sys_setitimer); // SVr4, 4.4BSD |
| 1564 | GEN_SYSCALL_WRAPPER(sys_getitimer); // SVr4, 4.4BSD |
| 1565 | GEN_SYSCALL_WRAPPER(sys_setreuid); // 4.3BSD |
| 1566 | GEN_SYSCALL_WRAPPER(sys_setregid); // 4.3BSD |
| 1567 | GEN_SYSCALL_WRAPPER(sys_fchown); // SVr4,4.3BSD |
| 1568 | GEN_SYSCALL_WRAPPER(sys_setgid); // SVr4,SVID |
| 1569 | GEN_SYSCALL_WRAPPER(sys_utimes); // 4.3BSD |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1570 | |
| 1571 | // These ones may be Linux specific... not sure. They use 16-bit gid_t and |
| 1572 | // uid_t types. The similarly named (minus the "16" suffix) ones below use |
| 1573 | // 32-bit versions of these types. |
| 1574 | GEN_SYSCALL_WRAPPER(sys_setuid16); // ## P |
| 1575 | GEN_SYSCALL_WRAPPER(sys_getuid16); // ## P |
| 1576 | GEN_SYSCALL_WRAPPER(sys_setgid16); // ## SVr4,SVID |
| 1577 | GEN_SYSCALL_WRAPPER(sys_getgid16); // ## P |
| 1578 | GEN_SYSCALL_WRAPPER(sys_geteuid16); // ## P |
| 1579 | GEN_SYSCALL_WRAPPER(sys_getegid16); // ## P |
| 1580 | GEN_SYSCALL_WRAPPER(sys_setreuid16); // ## BSD4.3 |
| 1581 | GEN_SYSCALL_WRAPPER(sys_setregid16); // ## BSD4.3 |
| 1582 | GEN_SYSCALL_WRAPPER(sys_getgroups16); // ## P |
| 1583 | GEN_SYSCALL_WRAPPER(sys_setgroups16); // ## SVr4, SVID, X/OPEN, 4.3BSD |
| 1584 | GEN_SYSCALL_WRAPPER(sys_fchown16); // ## SVr4,BSD4.3 |
| 1585 | GEN_SYSCALL_WRAPPER(sys_chown16); // ## P |
| 1586 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1587 | // Linux's funny many-in-one socketcall is certainly not generic, but I |
| 1588 | // didn't want to move it until necessary because it's big and has a lot of |
| 1589 | // associated junk. |
| 1590 | GEN_SYSCALL_WRAPPER(sys_socketcall); |
| 1591 | |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1592 | // Some archs on Linux do not match the generic wrapper for sys_pipe(). |
| 1593 | GEN_SYSCALL_WRAPPER(sys_pipe); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1594 | |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1595 | // May not be generic for every architecture under Linux. |
| 1596 | GEN_SYSCALL_WRAPPER(sys_sigaction); // (x86) P |
| 1597 | |
| 1598 | // Funny names, not sure... |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1599 | GEN_SYSCALL_WRAPPER(sys_newstat); // * P |
| 1600 | GEN_SYSCALL_WRAPPER(sys_newlstat); // * |
| 1601 | GEN_SYSCALL_WRAPPER(sys_newfstat); // * P (SVr4,BSD4.3) |
| 1602 | |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1603 | // For the remainder, not really sure yet |
| 1604 | GEN_SYSCALL_WRAPPER(old_mmap); // x86, weird arg passing |
| 1605 | GEN_SYSCALL_WRAPPER(sys_ptrace); // (x86?) (almost-P) |
| 1606 | GEN_SYSCALL_WRAPPER(sys_sigsuspend); // POSIX, but L (proto varies across archs) |
| 1607 | GEN_SYSCALL_WRAPPER(sys_setrlimit); // SVr4, 4.3BSD |
| 1608 | GEN_SYSCALL_WRAPPER(sys_ioctl); // x86? (various) |
| 1609 | GEN_SYSCALL_WRAPPER(sys_old_getrlimit); // SVr4, 4.3BSD L? |
| 1610 | GEN_SYSCALL_WRAPPER(sys_statfs); // * L? |
| 1611 | GEN_SYSCALL_WRAPPER(sys_fstatfs); // * L? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1612 | GEN_SYSCALL_WRAPPER(sys_iopl); // (x86/amd64) L |
| 1613 | GEN_SYSCALL_WRAPPER(sys_ipc); // (x86) L |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1614 | GEN_SYSCALL_WRAPPER(sys_newuname); // * P |
| 1615 | GEN_SYSCALL_WRAPPER(sys_init_module); // * L? |
| 1616 | GEN_SYSCALL_WRAPPER(sys_quotactl); // * (?) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1617 | GEN_SYSCALL_WRAPPER(sys_rt_sigaction); // (x86) () |
| 1618 | GEN_SYSCALL_WRAPPER(sys_rt_sigprocmask); // * ? |
| 1619 | GEN_SYSCALL_WRAPPER(sys_rt_sigpending); // * ? |
| 1620 | GEN_SYSCALL_WRAPPER(sys_rt_sigtimedwait); // * ? |
| 1621 | GEN_SYSCALL_WRAPPER(sys_rt_sigqueueinfo); // * ? |
| 1622 | GEN_SYSCALL_WRAPPER(sys_rt_sigsuspend); // () () |
| 1623 | GEN_SYSCALL_WRAPPER(sys_pread64); // * (Unix98?) |
| 1624 | GEN_SYSCALL_WRAPPER(sys_pwrite64); // * (Unix98?) |
| 1625 | GEN_SYSCALL_WRAPPER(sys_capget); // * L? |
| 1626 | GEN_SYSCALL_WRAPPER(sys_capset); // * L? |
| 1627 | GEN_SYSCALL_WRAPPER(sys_sigaltstack); // (x86) (XPG4-UNIX) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1628 | GEN_SYSCALL_WRAPPER(sys_getpmsg); // (?) (?) |
| 1629 | GEN_SYSCALL_WRAPPER(sys_putpmsg); // (?) (?) |
| 1630 | GEN_SYSCALL_WRAPPER(sys_getrlimit); // * (?) |
| 1631 | GEN_SYSCALL_WRAPPER(sys_mmap2); // (x86?) P? |
| 1632 | GEN_SYSCALL_WRAPPER(sys_truncate64); // %% (P?) |
| 1633 | GEN_SYSCALL_WRAPPER(sys_ftruncate64); // %% (P?) |
| 1634 | GEN_SYSCALL_WRAPPER(sys_stat64); // %% (?) |
| 1635 | GEN_SYSCALL_WRAPPER(sys_lstat64); // %% (?) |
| 1636 | GEN_SYSCALL_WRAPPER(sys_fstat64); // %% (?) |
| 1637 | GEN_SYSCALL_WRAPPER(sys_lchown); // * (L?) |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1638 | GEN_SYSCALL_WRAPPER(sys_mincore); // * L? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1639 | GEN_SYSCALL_WRAPPER(sys_getdents64); // * (SVr4,SVID?) |
| 1640 | GEN_SYSCALL_WRAPPER(sys_fcntl64); // * P? |
| 1641 | GEN_SYSCALL_WRAPPER(sys_setxattr); // * L? |
| 1642 | GEN_SYSCALL_WRAPPER(sys_lsetxattr); // * L? |
| 1643 | GEN_SYSCALL_WRAPPER(sys_fsetxattr); // * L? |
| 1644 | GEN_SYSCALL_WRAPPER(sys_getxattr); // * L? |
| 1645 | GEN_SYSCALL_WRAPPER(sys_lgetxattr); // * L? |
| 1646 | GEN_SYSCALL_WRAPPER(sys_fgetxattr); // * L? |
| 1647 | GEN_SYSCALL_WRAPPER(sys_listxattr); // * L? |
| 1648 | GEN_SYSCALL_WRAPPER(sys_llistxattr); // * L? |
| 1649 | GEN_SYSCALL_WRAPPER(sys_flistxattr); // * L? |
| 1650 | GEN_SYSCALL_WRAPPER(sys_removexattr); // * L? |
| 1651 | GEN_SYSCALL_WRAPPER(sys_lremovexattr); // * L? |
| 1652 | GEN_SYSCALL_WRAPPER(sys_fremovexattr); // * L? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1653 | GEN_SYSCALL_WRAPPER(sys_sched_setaffinity); // * L? |
| 1654 | GEN_SYSCALL_WRAPPER(sys_sched_getaffinity); // * L? |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1655 | GEN_SYSCALL_WRAPPER(sys_exit_group); // * ? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1656 | GEN_SYSCALL_WRAPPER(sys_lookup_dcookie); // (*/32/64) L |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1657 | GEN_SYSCALL_WRAPPER(sys_set_tid_address); // * ? |
| 1658 | GEN_SYSCALL_WRAPPER(sys_statfs64); // * (?) |
| 1659 | GEN_SYSCALL_WRAPPER(sys_fstatfs64); // * (?) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1660 | GEN_SYSCALL_WRAPPER(sys_mq_open); // * P? |
| 1661 | GEN_SYSCALL_WRAPPER(sys_mq_unlink); // * P? |
| 1662 | GEN_SYSCALL_WRAPPER(sys_mq_timedsend); // * P? |
| 1663 | GEN_SYSCALL_WRAPPER(sys_mq_timedreceive); // * P? |
| 1664 | GEN_SYSCALL_WRAPPER(sys_mq_notify); // * P? |
| 1665 | GEN_SYSCALL_WRAPPER(sys_mq_getsetattr); // * P? |
| 1666 | |
| 1667 | #undef GEN_SYSCALL_WRAPPER |
| 1668 | |
| 1669 | // Macros used in syscall wrappers |
sewardj | 8b635a4 | 2004-11-22 19:01:47 +0000 | [diff] [blame] | 1670 | /* PRRAn == "pre-register-read-argument" |
| 1671 | PRRSN == "pre-register-read-syscall" |
| 1672 | */ |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1673 | |
| 1674 | #define PRRSN \ |
njn | 26f0251 | 2004-11-22 18:33:15 +0000 | [diff] [blame] | 1675 | TL_(pre_reg_read)(Vg_CoreSysCall, tid, "(syscallno)", \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1676 | O_SYSCALL_NUM, sizeof(UWord)); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1677 | #define PRRAn(n,s,t,a) \ |
njn | 26f0251 | 2004-11-22 18:33:15 +0000 | [diff] [blame] | 1678 | TL_(pre_reg_read)(Vg_CoreSysCall, tid, s"("#a")", \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1679 | O_SYSCALL_ARG##n, sizeof(t)); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1680 | #define PRE_REG_READ0(tr, s) \ |
| 1681 | if (VG_(defined_pre_reg_read)()) { \ |
| 1682 | PRRSN; \ |
| 1683 | } |
| 1684 | #define PRE_REG_READ1(tr, s, t1, a1) \ |
| 1685 | if (VG_(defined_pre_reg_read)()) { \ |
| 1686 | PRRSN; \ |
| 1687 | PRRAn(1,s,t1,a1); \ |
| 1688 | } |
| 1689 | #define PRE_REG_READ2(tr, s, t1, a1, t2, a2) \ |
| 1690 | if (VG_(defined_pre_reg_read)()) { \ |
| 1691 | PRRSN; \ |
| 1692 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); \ |
| 1693 | } |
| 1694 | #define PRE_REG_READ3(tr, s, t1, a1, t2, a2, t3, a3) \ |
| 1695 | if (VG_(defined_pre_reg_read)()) { \ |
| 1696 | PRRSN; \ |
| 1697 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1698 | } |
| 1699 | #define PRE_REG_READ4(tr, s, t1, a1, t2, a2, t3, a3, t4, a4) \ |
| 1700 | if (VG_(defined_pre_reg_read)()) { \ |
| 1701 | PRRSN; \ |
| 1702 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1703 | PRRAn(4,s,t4,a4); \ |
| 1704 | } |
| 1705 | #define PRE_REG_READ5(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) \ |
| 1706 | if (VG_(defined_pre_reg_read)()) { \ |
| 1707 | PRRSN; \ |
| 1708 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1709 | PRRAn(4,s,t4,a4); PRRAn(5,s,t5,a5); \ |
| 1710 | } |
| 1711 | #define PRE_REG_READ6(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6) \ |
| 1712 | if (VG_(defined_pre_reg_read)()) { \ |
| 1713 | PRRSN; \ |
| 1714 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1715 | PRRAn(4,s,t4,a4); PRRAn(5,s,t5,a5); PRRAn(6,s,t6,a6); \ |
| 1716 | } |
| 1717 | |
| 1718 | #define PRE_MEM_READ(zzname, zzaddr, zzlen) \ |
| 1719 | VG_TRACK( pre_mem_read, Vg_CoreSysCall, tid, zzname, zzaddr, zzlen) |
| 1720 | |
| 1721 | #define PRE_MEM_RASCIIZ(zzname, zzaddr) \ |
| 1722 | VG_TRACK( pre_mem_read_asciiz, Vg_CoreSysCall, tid, zzname, zzaddr) |
| 1723 | |
| 1724 | #define PRE_MEM_WRITE(zzname, zzaddr, zzlen) \ |
| 1725 | VG_TRACK( pre_mem_write, Vg_CoreSysCall, tid, zzname, zzaddr, zzlen) |
| 1726 | |
| 1727 | #define POST_MEM_WRITE(zzaddr, zzlen) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1728 | VG_TRACK( post_mem_write, Vg_CoreSysCall, tid, zzaddr, zzlen) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1729 | |
sewardj | 987a8eb | 2005-03-01 19:00:30 +0000 | [diff] [blame^] | 1730 | |
| 1731 | ////////////////////////////////////////////////////////// |
| 1732 | |
| 1733 | #define TId ThreadId |
| 1734 | #define UW UWord |
| 1735 | |
| 1736 | extern void VG_(generic_PRE_sys_socketpair) ( TId, UW, UW, UW, UW ); |
| 1737 | extern UWord VG_(generic_POST_sys_socketpair) ( TId, UW, UW, UW, UW, UW ); |
| 1738 | extern UWord VG_(generic_POST_sys_socket) ( TId, UW ); |
| 1739 | extern void VG_(generic_PRE_sys_bind) ( TId, UW, UW, UW ); |
| 1740 | extern void VG_(generic_PRE_sys_accept) ( TId, UW, UW, UW ); |
| 1741 | extern UWord VG_(generic_POST_sys_accept) ( TId, UW, UW, UW, UW ); |
| 1742 | extern void VG_(generic_PRE_sys_sendto) ( TId, UW, UW, UW, UW, UW, UW ); |
| 1743 | extern void VG_(generic_PRE_sys_send) ( TId, UW, UW, UW ); |
| 1744 | extern void VG_(generic_PRE_sys_recvfrom) ( TId, UW, UW, UW, UW, UW, UW ); |
| 1745 | extern void VG_(generic_POST_sys_recvfrom) ( TId, UW, UW, UW, UW, UW, UW, UW ); |
| 1746 | extern void VG_(generic_PRE_sys_recv) ( TId, UW, UW, UW ); |
| 1747 | extern void VG_(generic_POST_sys_recv) ( TId, UW, UW, UW, UW ); |
| 1748 | extern void VG_(generic_PRE_sys_connect) ( TId, UW, UW, UW ); |
| 1749 | extern void VG_(generic_PRE_sys_setsockopt) ( TId, UW, UW, UW, UW, UW ); |
| 1750 | extern void VG_(generic_PRE_sys_getsockopt) ( TId, UW, UW, UW, UW, UW ); |
| 1751 | extern void VG_(generic_POST_sys_getsockopt) ( TId, UW, UW, UW, UW, UW, UW ); |
| 1752 | extern void VG_(generic_PRE_sys_getsockname) ( TId, UW, UW, UW ); |
| 1753 | extern void VG_(generic_POST_sys_getsockname) ( TId, UW, UW, UW, UW ); |
| 1754 | extern void VG_(generic_PRE_sys_getpeername) ( TId, UW, UW, UW ); |
| 1755 | extern void VG_(generic_POST_sys_getpeername) ( TId, UW, UW, UW, UW ); |
| 1756 | extern void VG_(generic_PRE_sys_sendmsg) ( TId, UW, UW ); |
| 1757 | extern void VG_(generic_PRE_sys_recvmsg) ( TId, UW, UW ); |
| 1758 | extern void VG_(generic_POST_sys_recvmsg) ( TId, UW, UW, UW ); |
| 1759 | |
| 1760 | #undef TID |
| 1761 | #undef UW |
| 1762 | |
| 1763 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1764 | /* --------------------------------------------------------------------- |
| 1765 | Exports of vg_transtab.c |
| 1766 | ------------------------------------------------------------------ */ |
| 1767 | |
sewardj | fa8ec11 | 2005-01-19 11:55:34 +0000 | [diff] [blame] | 1768 | /* The fast-cache for tt-lookup, and for finding counters. */ |
| 1769 | extern ULong* VG_(tt_fast) [VG_TT_FAST_SIZE]; |
| 1770 | extern UInt* VG_(tt_fastN)[VG_TT_FAST_SIZE]; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1771 | |
nethercote | 92e7b7f | 2004-08-07 17:52:25 +0000 | [diff] [blame] | 1772 | extern void VG_(init_tt_tc) ( void ); |
sewardj | 6c3769f | 2002-11-29 01:02:45 +0000 | [diff] [blame] | 1773 | |
sewardj | fa8ec11 | 2005-01-19 11:55:34 +0000 | [diff] [blame] | 1774 | extern |
| 1775 | void VG_(add_to_trans_tab)( VexGuestExtents* vge, |
| 1776 | Addr64 entry, |
| 1777 | AddrH code, |
| 1778 | UInt code_len ); |
| 1779 | |
| 1780 | extern Bool VG_(search_transtab) ( /*OUT*/AddrH* result, |
| 1781 | Addr64 guest_addr, |
| 1782 | Bool upd_cache ); |
| 1783 | |
| 1784 | extern void VG_(discard_translations) ( Addr64 start, UInt range ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1785 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1786 | extern void VG_(sanity_check_tt_tc) ( Char* caller ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1787 | |
nethercote | 92e7b7f | 2004-08-07 17:52:25 +0000 | [diff] [blame] | 1788 | extern void VG_(print_tt_tc_stats) ( void ); |
| 1789 | |
sewardj | fa8ec11 | 2005-01-19 11:55:34 +0000 | [diff] [blame] | 1790 | extern UInt VG_(get_bbs_translated) ( void ); |
| 1791 | |
| 1792 | extern void VG_(show_BB_profile) ( void ); |
| 1793 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1794 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1795 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1796 | Exports of vg_syscall.S |
| 1797 | ------------------------------------------------------------------ */ |
| 1798 | |
njn | ca6fef0 | 2004-11-29 16:49:18 +0000 | [diff] [blame] | 1799 | // We use a full prototype rather than "..." here to ensure that all |
| 1800 | // arguments get converted to a UWord appropriately. Not doing so can |
| 1801 | // cause problems when passing 32-bit integers on 64-bit platforms, because |
| 1802 | // the top 32-bits might not be zeroed appropriately, eg. as would happen |
| 1803 | // with the 6th arg on AMD64 which is passed on the stack. |
njn | f4aeaea | 2004-11-29 17:33:31 +0000 | [diff] [blame] | 1804 | extern Word VG_(do_syscall) ( UInt, UWord, UWord, UWord, UWord, UWord, UWord ); |
njn | ca6fef0 | 2004-11-29 16:49:18 +0000 | [diff] [blame] | 1805 | |
| 1806 | // Macros make life easier. |
| 1807 | #define vgPlain_do_syscall0(s) VG_(do_syscall)((s),0,0,0,0,0,0) |
| 1808 | #define vgPlain_do_syscall1(s,a) VG_(do_syscall)((s),(a),0,0,0,0,0) |
| 1809 | #define vgPlain_do_syscall2(s,a,b) VG_(do_syscall)((s),(a),(b),0,0,0,0) |
| 1810 | #define vgPlain_do_syscall3(s,a,b,c) VG_(do_syscall)((s),(a),(b),(c),0,0,0) |
| 1811 | #define vgPlain_do_syscall4(s,a,b,c,d) VG_(do_syscall)((s),(a),(b),(c),(d),0,0) |
| 1812 | #define vgPlain_do_syscall5(s,a,b,c,d,e) VG_(do_syscall)((s),(a),(b),(c),(d),(e),0) |
| 1813 | #define vgPlain_do_syscall6(s,a,b,c,d,e,f) VG_(do_syscall)((s),(a),(b),(c),(d),(e),(f)) |
| 1814 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1815 | extern Int VG_(clone) ( Int (*fn)(void *), void *stack, Int flags, void *arg, |
| 1816 | Int *child_tid, Int *parent_tid); |
fitzhardinge | 4f10ada | 2004-06-03 10:00:42 +0000 | [diff] [blame] | 1817 | extern void VG_(sigreturn)(void); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1818 | |
| 1819 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1820 | Exports of vg_dispatch.S |
| 1821 | ------------------------------------------------------------------ */ |
| 1822 | |
njn | d6f157d | 2004-11-30 17:27:21 +0000 | [diff] [blame] | 1823 | /* This subroutine is called from the C world. It is passed |
| 1824 | a pointer to the VEX guest state (arch.vex). It must run code |
| 1825 | from the instruction pointer in the guest state, and exit when |
| 1826 | VG_(dispatch_ctr) reaches zero, or we need to defer to the scheduler. |
| 1827 | The return value must indicate why it returned back to the scheduler. |
| 1828 | It can also be exited if the executing code throws a non-resumable |
| 1829 | signal, for example SIGSEGV, in which case control longjmp()s back past |
| 1830 | here. |
| 1831 | |
| 1832 | This code simply handles the common case fast -- when the translation |
| 1833 | address is found in the translation cache. For anything else, the |
| 1834 | scheduler does the work. |
| 1835 | */ |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1836 | extern UInt VG_(run_innerloop) ( void* guest_state ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1837 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1838 | /* --------------------------------------------------------------------- |
| 1839 | Exports of vg_helpers.S |
| 1840 | ------------------------------------------------------------------ */ |
| 1841 | |
fitzhardinge | 9236079 | 2003-12-24 10:11:11 +0000 | [diff] [blame] | 1842 | /* Information about trampoline code (for signal return and syscalls) */ |
| 1843 | extern const Char VG_(trampoline_code_start); |
| 1844 | extern const Int VG_(trampoline_code_length); |
| 1845 | extern const Int VG_(tramp_sigreturn_offset); |
| 1846 | extern const Int VG_(tramp_syscall_offset); |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 1847 | |
njn | 4f9c934 | 2002-04-29 16:03:24 +0000 | [diff] [blame] | 1848 | /* --------------------------------------------------------------------- |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 1849 | Things relating to the used tool |
njn | 4f9c934 | 2002-04-29 16:03:24 +0000 | [diff] [blame] | 1850 | ------------------------------------------------------------------ */ |
| 1851 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1852 | #define VG_TRACK(fn, args...) \ |
| 1853 | do { \ |
| 1854 | if (VG_(defined_##fn)()) \ |
njn | 26f0251 | 2004-11-22 18:33:15 +0000 | [diff] [blame] | 1855 | TL_(fn)(args); \ |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1856 | } while(0) |
sewardj | 18d7513 | 2002-05-16 11:06:21 +0000 | [diff] [blame] | 1857 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1858 | __attribute__ ((noreturn)) |
| 1859 | extern void VG_(missing_tool_func) ( const Char* fn ); |
sewardj | 18d7513 | 2002-05-16 11:06:21 +0000 | [diff] [blame] | 1860 | |
nethercote | c06e213 | 2004-09-03 13:45:29 +0000 | [diff] [blame] | 1861 | // --------------------------------------------------------------------- |
| 1862 | // Architecture-specific things defined in eg. x86/*.c |
| 1863 | // --------------------------------------------------------------------- |
| 1864 | |
sewardj | 51ac087 | 2004-12-21 01:20:49 +0000 | [diff] [blame] | 1865 | // Returns the architecture and subarchitecture, or indicates |
| 1866 | // that this subarchitecture is unable to run Valgrind |
| 1867 | // Returns False to indicate we cannot proceed further. |
| 1868 | |
| 1869 | extern Bool VGA_(getArchAndSubArch)( /*OUT*/VexArch*, |
| 1870 | /*OUT*/VexSubArch* ); |
| 1871 | |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1872 | // Accessors for the ThreadArchState |
| 1873 | #define INSTR_PTR(regs) ((regs).vex.ARCH_INSTR_PTR) |
| 1874 | #define STACK_PTR(regs) ((regs).vex.ARCH_STACK_PTR) |
| 1875 | #define FRAME_PTR(regs) ((regs).vex.ARCH_FRAME_PTR) |
| 1876 | |
| 1877 | #define CLREQ_ARGS(regs) ((regs).vex.ARCH_CLREQ_ARGS) |
| 1878 | #define PTHREQ_RET(regs) ((regs).vex.ARCH_PTHREQ_RET) |
| 1879 | #define CLREQ_RET(regs) ((regs).vex.ARCH_CLREQ_RET) |
| 1880 | |
sewardj | 4bd1146 | 2004-11-29 19:46:28 +0000 | [diff] [blame] | 1881 | |
njn | 16de557 | 2004-11-27 14:27:21 +0000 | [diff] [blame] | 1882 | // Offsets for the Vex state |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1883 | #define O_STACK_PTR (offsetof(VexGuestArchState, ARCH_STACK_PTR)) |
| 1884 | #define O_FRAME_PTR (offsetof(VexGuestArchState, ARCH_FRAME_PTR)) |
| 1885 | |
| 1886 | #define O_CLREQ_RET (offsetof(VexGuestArchState, ARCH_CLREQ_RET)) |
| 1887 | #define O_PTHREQ_RET (offsetof(VexGuestArchState, ARCH_PTHREQ_RET)) |
| 1888 | |
| 1889 | |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1890 | // Setting up the initial thread (1) state |
| 1891 | extern void |
| 1892 | VGA_(init_thread1state) ( Addr client_eip, |
| 1893 | Addr esp_at_startup, |
| 1894 | /*MOD*/ ThreadArchState* arch ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1895 | |
nethercote | c009ebe | 2004-09-13 11:05:11 +0000 | [diff] [blame] | 1896 | // Thread stuff |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1897 | extern void VGA_(cleanup_thread) ( ThreadArchState* ); |
| 1898 | extern void VGA_(setup_child) ( ThreadArchState*, ThreadArchState* ); |
nethercote | f9b5941 | 2004-09-10 15:33:32 +0000 | [diff] [blame] | 1899 | |
nethercote | 6b9c847 | 2004-09-13 13:16:40 +0000 | [diff] [blame] | 1900 | extern void VGA_(set_arg_and_bogus_ret) ( ThreadId tid, UWord arg, Addr ret ); |
| 1901 | extern void VGA_(thread_initial_stack) ( ThreadId tid, UWord arg, Addr ret ); |
| 1902 | |
nethercote | c009ebe | 2004-09-13 11:05:11 +0000 | [diff] [blame] | 1903 | // Symtab stuff |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1904 | extern UInt* VGA_(reg_addr_from_tst) ( Int regno, ThreadArchState* ); |
nethercote | cd65604 | 2004-09-11 23:48:22 +0000 | [diff] [blame] | 1905 | |
nethercote | fedd810 | 2004-09-13 15:19:34 +0000 | [diff] [blame] | 1906 | // Pointercheck |
| 1907 | extern Bool VGA_(setup_pointercheck) ( void ); |
| 1908 | |
| 1909 | // For attaching the debugger |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1910 | extern Int VGA_(ptrace_setregs_from_tst) ( Int pid, ThreadArchState* arch ); |
nethercote | fedd810 | 2004-09-13 15:19:34 +0000 | [diff] [blame] | 1911 | |
nethercote | 6eec460 | 2004-09-13 14:15:36 +0000 | [diff] [blame] | 1912 | // Signal stuff |
nethercote | 4ad7431 | 2004-10-26 09:59:49 +0000 | [diff] [blame] | 1913 | extern void VGA_(push_signal_frame) ( ThreadId tid, Addr sp_top_of_frame, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1914 | const vki_siginfo_t *siginfo, |
nethercote | 6eec460 | 2004-09-13 14:15:36 +0000 | [diff] [blame] | 1915 | void *handler, UInt flags, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1916 | const vki_sigset_t *mask); |
nethercote | 6eec460 | 2004-09-13 14:15:36 +0000 | [diff] [blame] | 1917 | extern Int VGA_(pop_signal_frame) ( ThreadId tid ); |
| 1918 | |
nethercote | 9b3c765 | 2004-10-19 13:18:00 +0000 | [diff] [blame] | 1919 | // libpthread stuff |
njn | e7da73c | 2004-11-26 12:44:19 +0000 | [diff] [blame] | 1920 | typedef struct _ThreadArchAux ThreadArchAux; |
nethercote | 9b3c765 | 2004-10-19 13:18:00 +0000 | [diff] [blame] | 1921 | |
njn | e7da73c | 2004-11-26 12:44:19 +0000 | [diff] [blame] | 1922 | void VGA_(thread_create) ( ThreadArchAux *aux ); |
| 1923 | void VGA_(thread_wrapper)( ThreadArchAux *aux ); |
nethercote | 9b3c765 | 2004-10-19 13:18:00 +0000 | [diff] [blame] | 1924 | void VGA_(thread_exit) ( void ); |
| 1925 | |
| 1926 | Bool VGA_(has_tls) ( void ); |
| 1927 | |
| 1928 | #define MY__STRING(__str) #__str |
| 1929 | |
| 1930 | // Assertion to use in code running on the simulated CPU. |
| 1931 | #define my_assert(expr) \ |
| 1932 | ((void) ((expr) ? 0 : \ |
| 1933 | (VG_(user_assert_fail) (MY__STRING(expr), \ |
| 1934 | __FILE__, __LINE__, \ |
| 1935 | __PRETTY_FUNCTION__), 0))) |
| 1936 | |
| 1937 | extern void VG_(user_assert_fail) ( const Char* expr, const Char* file, |
| 1938 | Int line, const Char* fn ); |
| 1939 | |
| 1940 | |
nethercote | 41c75da | 2004-10-18 15:34:14 +0000 | [diff] [blame] | 1941 | // --------------------------------------------------------------------- |
| 1942 | // Platform-specific things defined in eg. x86/*.c |
| 1943 | // --------------------------------------------------------------------- |
nethercote | 775508a | 2004-09-07 22:38:23 +0000 | [diff] [blame] | 1944 | |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1945 | // Accessors for the ThreadArchState |
| 1946 | #define SYSCALL_NUM(regs) ((regs).vex.PLATFORM_SYSCALL_NUM) |
| 1947 | #define SYSCALL_ARG1(regs) ((regs).vex.PLATFORM_SYSCALL_ARG1) |
| 1948 | #define SYSCALL_ARG2(regs) ((regs).vex.PLATFORM_SYSCALL_ARG2) |
| 1949 | #define SYSCALL_ARG3(regs) ((regs).vex.PLATFORM_SYSCALL_ARG3) |
| 1950 | #define SYSCALL_ARG4(regs) ((regs).vex.PLATFORM_SYSCALL_ARG4) |
| 1951 | #define SYSCALL_ARG5(regs) ((regs).vex.PLATFORM_SYSCALL_ARG5) |
| 1952 | #define SYSCALL_ARG6(regs) ((regs).vex.PLATFORM_SYSCALL_ARG6) |
| 1953 | #define SYSCALL_RET(regs) ((regs).vex.PLATFORM_SYSCALL_RET) |
| 1954 | |
| 1955 | // Offsets for the shadow state |
njn | fcd5636 | 2004-11-24 18:31:40 +0000 | [diff] [blame] | 1956 | #define O_SYSCALL_NUM (offsetof(VexGuestArchState, PLATFORM_SYSCALL_NUM)) |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1957 | #define O_SYSCALL_ARG1 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG1)) |
| 1958 | #define O_SYSCALL_ARG2 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG2)) |
| 1959 | #define O_SYSCALL_ARG3 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG3)) |
| 1960 | #define O_SYSCALL_ARG4 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG4)) |
| 1961 | #define O_SYSCALL_ARG5 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG5)) |
| 1962 | #define O_SYSCALL_ARG6 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG6)) |
| 1963 | #define O_SYSCALL_RET (offsetof(VexGuestArchState, PLATFORM_SYSCALL_RET)) |
| 1964 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1965 | struct SyscallTableEntry { |
| 1966 | UInt *flags_ptr; |
| 1967 | void (*before)(ThreadId tid, ThreadState *tst); |
| 1968 | void (*after) (ThreadId tid, ThreadState *tst); |
| 1969 | }; |
| 1970 | |
| 1971 | /* This table is the mapping from __NR_xxx syscall numbers to the PRE/POST |
| 1972 | wrappers for the relevant syscalls used in the OS kernel for that number. |
| 1973 | Note that the constant names don't always match the wrapper names in a |
| 1974 | straightforward way. For example, on x86/Linux: |
| 1975 | |
| 1976 | __NR_lchown --> sys_lchown16() |
| 1977 | __NR_lchown32 --> sys_lchown() |
| 1978 | __NR_select --> old_select() |
| 1979 | __NR__newselect --> sys_select() |
| 1980 | */ |
| 1981 | extern const struct SyscallTableEntry VGA_(syscall_table)[]; |
| 1982 | |
| 1983 | extern const UInt VGA_(syscall_table_size); |
| 1984 | |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1985 | extern void VGA_(restart_syscall)(ThreadArchState* arch); |
nethercote | 24e0d44 | 2004-10-18 17:36:40 +0000 | [diff] [blame] | 1986 | |
njn | 7be3695 | 2004-11-24 18:14:41 +0000 | [diff] [blame] | 1987 | /* We need our own copy of VG_(do_syscall)() to handle a special |
| 1988 | race-condition. If we've got signals unblocked, and we take a |
| 1989 | signal in the gap either just before or after the syscall, we may |
| 1990 | end up not running the syscall at all, or running it more than |
| 1991 | once. |
| 1992 | |
| 1993 | The solution is to make the signal handler derive the proxy's |
| 1994 | precise state by looking to see which eip it is executing at |
| 1995 | exception time. |
| 1996 | |
| 1997 | Ranges: |
| 1998 | |
| 1999 | VGA_(sys_before) ... VGA_(sys_restarted): |
| 2000 | Setting up register arguments and running state. If |
| 2001 | interrupted, then the syscall should be considered to return |
| 2002 | ERESTARTSYS. |
| 2003 | |
| 2004 | VGA_(sys_restarted): |
| 2005 | If interrupted and eip==VGA_(sys_restarted), then either the syscall |
| 2006 | was about to start running, or it has run, was interrupted and |
| 2007 | the kernel wants to restart it. eax still contains the |
| 2008 | syscall number. If interrupted, then the syscall return value |
| 2009 | should be ERESTARTSYS. |
| 2010 | |
| 2011 | VGA_(sys_after): |
| 2012 | If interrupted and eip==VGA_(sys_after), the syscall either just |
| 2013 | finished, or it was interrupted and the kernel doesn't want to |
| 2014 | restart it. Either way, eax equals the correct return value |
| 2015 | (either the actual return value, or EINTR). |
| 2016 | |
| 2017 | VGA_(sys_after) ... VGA_(sys_done): |
| 2018 | System call is complete, but the state hasn't been updated, |
| 2019 | nor has the result been written back. eax contains the return |
| 2020 | value. |
| 2021 | |
| 2022 | Freakin' horrible... |
| 2023 | */ |
| 2024 | extern const Addr VGA_(sys_before), VGA_(sys_restarted), |
| 2025 | VGA_(sys_after), VGA_(sys_done); |
| 2026 | |
sewardj | b0f03c7 | 2005-02-13 10:57:01 +0000 | [diff] [blame] | 2027 | extern void VGA_(do_thread_syscall) |
| 2028 | ( UWord sys, |
| 2029 | UWord arg1, UWord arg2, UWord arg3, |
| 2030 | UWord arg4, UWord arg5, UWord arg6, |
| 2031 | /*OUT*/HWord *resultP, |
| 2032 | /*enum PXState*/Int *stateP, |
| 2033 | /*enum PXState*/Int poststate |
| 2034 | ); |
sewardj | 3b2736a | 2002-03-24 12:18:35 +0000 | [diff] [blame] | 2035 | |
| 2036 | /* --------------------------------------------------------------------- |
| 2037 | Finally - autoconf-generated settings |
| 2038 | ------------------------------------------------------------------ */ |
| 2039 | |
| 2040 | #include "config.h" |
| 2041 | |
nethercote | c06e213 | 2004-09-03 13:45:29 +0000 | [diff] [blame] | 2042 | #endif /* ndef __CORE_H */ |
| 2043 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2044 | /*--------------------------------------------------------------------*/ |
nethercote | 109d0df | 2004-09-02 08:10:13 +0000 | [diff] [blame] | 2045 | /*--- end ---*/ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2046 | /*--------------------------------------------------------------------*/ |