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 | c953984 | 2002-10-02 13:26:35 +0000 | [diff] [blame] | 9 | This file is part of Valgrind, an extensible x86 protected-mode |
| 10 | emulator for monitoring program execution on x86-Unixes. |
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 | |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 102 | /* ToDo: nuke */ |
| 103 | #define INVALID_OFFSET (-1) |
| 104 | |
nethercote | 7be4725 | 2004-09-02 16:02:58 +0000 | [diff] [blame] | 105 | /* --------------------------------------------------------------------- |
| 106 | Build options and table sizes. You should be able to change these |
| 107 | options or sizes, recompile, and still have a working system. |
| 108 | ------------------------------------------------------------------ */ |
| 109 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 110 | /* Constants for the slow translation lookup cache. */ |
| 111 | #define VG_TRANSTAB_SLOW_BITS 11 |
| 112 | #define VG_TRANSTAB_SLOW_SIZE (1 << VG_TRANSTAB_SLOW_BITS) |
| 113 | #define VG_TRANSTAB_SLOW_MASK ((VG_TRANSTAB_SLOW_SIZE) - 1) |
| 114 | |
| 115 | /* Size of a buffer used for creating messages. */ |
| 116 | #define M_VG_MSGBUF 10000 |
| 117 | |
| 118 | /* Size of a smallish table used to read /proc/self/map entries. */ |
sewardj | ebc8233 | 2002-04-24 14:44:23 +0000 | [diff] [blame] | 119 | #define M_PROCMAP_BUF 50000 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 120 | |
| 121 | /* Max length of pathname to a .so/executable file. */ |
| 122 | #define M_VG_LIBNAMESTR 100 |
| 123 | |
| 124 | /* Max length of a text fragment used to construct error messages. */ |
nethercote | 3b38c1d | 2004-10-18 15:47:18 +0000 | [diff] [blame] | 125 | #define M_VG_ERRTXT 4096 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 126 | |
| 127 | /* Max length of the string copied from env var VG_ARGS at startup. */ |
| 128 | #define M_VG_CMDLINE_STRLEN 1000 |
| 129 | |
| 130 | /* Max number of options for Valgrind which we can handle. */ |
| 131 | #define M_VG_CMDLINE_OPTS 100 |
| 132 | |
| 133 | /* After this many different unsuppressed errors have been observed, |
| 134 | be more conservative about collecting new ones. */ |
| 135 | #define M_VG_COLLECT_ERRORS_SLOWLY_AFTER 50 |
| 136 | |
| 137 | /* After this many different unsuppressed errors have been observed, |
| 138 | stop collecting errors at all, and tell the user their program is |
| 139 | evidently a steaming pile of camel dung. */ |
sewardj | 1bebcbf | 2002-04-24 21:24:18 +0000 | [diff] [blame] | 140 | #define M_VG_COLLECT_NO_ERRORS_AFTER_SHOWN 300 |
sewardj | f2537be | 2002-04-24 21:03:47 +0000 | [diff] [blame] | 141 | |
| 142 | /* After this many total errors have been observed, stop collecting |
| 143 | errors at all. Counterpart to M_VG_COLLECT_NO_ERRORS_AFTER_SHOWN. */ |
sewardj | 1bebcbf | 2002-04-24 21:24:18 +0000 | [diff] [blame] | 144 | #define M_VG_COLLECT_NO_ERRORS_AFTER_FOUND 30000 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 145 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 146 | /* The maximum number of calls we're prepared to save in a |
| 147 | backtrace. */ |
| 148 | #define VG_DEEPEST_BACKTRACE 50 |
| 149 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 150 | /* Number of lists in which we keep track of ExeContexts. Should be |
| 151 | prime. */ |
sewardj | 59fb25c | 2003-09-28 16:32:58 +0000 | [diff] [blame] | 152 | #define VG_N_EC_LISTS 4999 /* a prime number */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 153 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 154 | /* Defines the thread-scheduling timeslice, in terms of the number of |
| 155 | basic blocks we attempt to run each thread for. Smaller values |
| 156 | give finer interleaving but much increased scheduling overheads. */ |
sewardj | 4505b9e | 2002-05-28 11:27:31 +0000 | [diff] [blame] | 157 | #define VG_SCHEDULING_QUANTUM 50000 |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 158 | |
fitzhardinge | f0046f2 | 2003-12-18 02:39:22 +0000 | [diff] [blame] | 159 | /* Number of file descriptors that Valgrind tries to reserve for |
| 160 | it's own use - two per thread plues a small number of extras. */ |
| 161 | #define VG_N_RESERVED_FDS (VG_N_THREADS*2 + 4) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 162 | |
sewardj | bf290b9 | 2002-05-01 02:28:01 +0000 | [diff] [blame] | 163 | /* Stack size for a thread. We try and check that they do not go |
| 164 | beyond it. */ |
sewardj | f0b0645 | 2002-06-04 08:38:04 +0000 | [diff] [blame] | 165 | #define VG_PTHREAD_STACK_SIZE (1 << 20) |
sewardj | bf290b9 | 2002-05-01 02:28:01 +0000 | [diff] [blame] | 166 | |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 167 | /* Number of entries in each thread's cleanup stack. */ |
sewardj | 61821c0 | 2003-05-04 13:02:10 +0000 | [diff] [blame] | 168 | #define VG_N_CLEANUPSTACK 16 |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 169 | |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 170 | /* Number of entries in each thread's fork-handler stack. */ |
sewardj | 4700f04 | 2003-07-26 17:49:58 +0000 | [diff] [blame] | 171 | #define VG_N_FORKHANDLERSTACK 4 |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 172 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 173 | /* Max number of callers for context in a suppression. */ |
| 174 | #define VG_N_SUPP_CALLERS 4 |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 175 | |
thughes | 8abf392 | 2004-10-16 10:59:49 +0000 | [diff] [blame] | 176 | /* Numer of entries in each thread's signal queue. */ |
| 177 | #define VG_N_SIGNALQUEUE 8 |
| 178 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 179 | /* Useful macros */ |
| 180 | /* a - alignment - must be a power of 2 */ |
| 181 | #define ROUNDDN(p, a) ((Addr)(p) & ~((a)-1)) |
| 182 | #define ROUNDUP(p, a) ROUNDDN((p)+(a)-1, (a)) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 183 | #define PGROUNDDN(p) ROUNDDN(p, VKI_PAGE_SIZE) |
| 184 | #define PGROUNDUP(p) ROUNDUP(p, VKI_PAGE_SIZE) |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 185 | |
nethercote | 80013e9 | 2004-09-05 20:39:51 +0000 | [diff] [blame] | 186 | /* --------------------------------------------------------------------- |
| 187 | Environment variables |
| 188 | ------------------------------------------------------------------ */ |
| 189 | |
| 190 | /* The directory we look for all our auxillary files in */ |
| 191 | #define VALGRINDLIB "VALGRINDLIB" |
| 192 | |
| 193 | /* Additional command-line arguments; they are overridden by actual |
| 194 | command-line option. Each argument is separated by spaces. There |
| 195 | is no quoting mechanism. |
| 196 | */ |
| 197 | #define VALGRINDOPTS "VALGRIND_OPTS" |
| 198 | |
| 199 | /* If this variable is present in the environment, then valgrind will |
| 200 | not parse the command line for options at all; all options come |
| 201 | from this variable. Arguments are terminated by ^A (\001). There |
| 202 | is no quoting mechanism. |
| 203 | |
| 204 | This variable is not expected to be set by anything other than |
| 205 | Valgrind itself, as part of its handling of execve with |
| 206 | --trace-children=yes. This variable should not be present in the |
| 207 | client environment. |
| 208 | */ |
| 209 | #define VALGRINDCLO "_VALGRIND_CLO" |
| 210 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 211 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 212 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 213 | Command-line-settable options |
| 214 | ------------------------------------------------------------------ */ |
| 215 | |
sewardj | 4f094a7 | 2002-11-05 23:37:35 +0000 | [diff] [blame] | 216 | /* Default destination port to be used in logging over a network, if |
| 217 | none specified. */ |
| 218 | #define VG_CLO_DEFAULT_LOGPORT 1500 |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 219 | |
| 220 | /* The max number of suppression files. */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 221 | #define VG_CLO_MAX_SFILES 10 |
| 222 | |
nethercote | 04d0fbc | 2004-01-26 16:48:06 +0000 | [diff] [blame] | 223 | /* Default debugger command. */ |
| 224 | #define VG_CLO_DEFAULT_DBCOMMAND GDB_PATH " -nw %f %p" |
| 225 | |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 226 | /* Describes where logging output is to be sent. */ |
| 227 | typedef |
| 228 | enum { |
| 229 | VgLogTo_Fd, |
| 230 | VgLogTo_File, |
| 231 | VgLogTo_Socket |
| 232 | } VgLogTo; |
| 233 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 234 | /* pid of main process */ |
| 235 | extern Int VG_(main_pid); |
| 236 | |
| 237 | /* pgrp of process (global to all threads) */ |
| 238 | extern Int VG_(main_pgrp); |
sewardj | 4cf0569 | 2002-10-27 20:28:29 +0000 | [diff] [blame] | 239 | |
thughes | ad1c956 | 2004-06-26 11:27:52 +0000 | [diff] [blame] | 240 | /* Application-visible file descriptor limits */ |
| 241 | extern Int VG_(fd_soft_limit); |
| 242 | extern Int VG_(fd_hard_limit); |
fitzhardinge | f0046f2 | 2003-12-18 02:39:22 +0000 | [diff] [blame] | 243 | |
sewardj | 8b635a4 | 2004-11-22 19:01:47 +0000 | [diff] [blame] | 244 | /* Vex iropt control */ |
| 245 | extern VexControl VG_(clo_vex_control); |
sewardj | 72f98ff | 2002-06-13 17:23:38 +0000 | [diff] [blame] | 246 | /* Should we stop collecting errors if too many appear? default: YES */ |
sewardj | 2e43290 | 2002-06-13 20:44:00 +0000 | [diff] [blame] | 247 | extern Bool VG_(clo_error_limit); |
nethercote | 04d0fbc | 2004-01-26 16:48:06 +0000 | [diff] [blame] | 248 | /* Enquire about whether to attach to a debugger at errors? default: NO */ |
| 249 | extern Bool VG_(clo_db_attach); |
| 250 | /* The debugger command? default: whatever gdb ./configure found */ |
| 251 | extern Char* VG_(clo_db_command); |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 252 | /* Enquire about generating a suppression for each error? default: NO */ |
| 253 | extern Bool 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 | 8e4d7dc | 2004-11-28 18:07:41 +0000 | [diff] [blame^] | 292 | /* PROFILE: collect bb profiling data? default: NO */ |
| 293 | extern Bool VG_(clo_bbprofile); |
| 294 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 295 | /* DEBUG: print generated code? default: 00000 ( == NO ) */ |
| 296 | extern Bool VG_(clo_trace_codegen); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 297 | /* DEBUG: print system calls? default: NO */ |
| 298 | extern Bool VG_(clo_trace_syscalls); |
| 299 | /* DEBUG: print signal details? default: NO */ |
| 300 | extern Bool VG_(clo_trace_signals); |
| 301 | /* DEBUG: print symtab details? default: NO */ |
| 302 | extern Bool VG_(clo_trace_symtab); |
sewardj | 8937c81 | 2002-04-12 20:12:20 +0000 | [diff] [blame] | 303 | /* DEBUG: print thread scheduling events? default: NO */ |
| 304 | extern Bool VG_(clo_trace_sched); |
sewardj | 45b4b37 | 2002-04-16 22:50:32 +0000 | [diff] [blame] | 305 | /* DEBUG: print pthread (mutex etc) events? default: 0 (none), 1 |
| 306 | (some), 2 (all) */ |
| 307 | extern Int VG_(clo_trace_pthread_level); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 308 | /* Display gory details for the k'th most popular error. default: |
| 309 | Infinity. */ |
| 310 | extern Int VG_(clo_dump_error); |
| 311 | /* Number of parents of a backtrace. Default: 8. */ |
| 312 | extern Int VG_(clo_backtrace_size); |
daywalker | 7e73e5f | 2003-07-04 16:18:15 +0000 | [diff] [blame] | 313 | /* Engage miscellaneous weird hacks needed for some progs. */ |
sewardj | 8d365b5 | 2002-05-12 10:52:16 +0000 | [diff] [blame] | 314 | extern Char* VG_(clo_weird_hacks); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 315 | /* How often we should poll for signals, assuming we need to poll for |
| 316 | signals. */ |
| 317 | extern Int VG_(clo_signal_polltime); |
| 318 | |
| 319 | /* Low latency syscalls and signals */ |
| 320 | extern Bool VG_(clo_lowlat_syscalls); |
| 321 | extern Bool VG_(clo_lowlat_signals); |
| 322 | |
rjwalsh | f5f536f | 2003-11-17 17:45:00 +0000 | [diff] [blame] | 323 | /* Track open file descriptors? */ |
| 324 | extern Bool VG_(clo_track_fds); |
| 325 | |
sewardj | 858964b | 2002-10-05 14:15:43 +0000 | [diff] [blame] | 326 | /* Should we run __libc_freeres at exit? Sometimes causes crashes. |
| 327 | Default: YES. Note this is subservient to VG_(needs).libc_freeres; |
| 328 | if the latter says False, then the setting of VG_(clo_weird_hacks) |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 329 | 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] | 330 | cannot be overridden from the command line. */ |
| 331 | extern Bool VG_(clo_run_libc_freeres); |
fitzhardinge | 462f4f9 | 2003-12-18 02:10:54 +0000 | [diff] [blame] | 332 | /* Generate branch-prediction hints? */ |
| 333 | extern Bool VG_(clo_branchpred); |
nethercote | 77eba60 | 2003-11-13 17:35:04 +0000 | [diff] [blame] | 334 | /* Continue stack traces below main()? Default: NO */ |
| 335 | extern Bool VG_(clo_show_below_main); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 336 | /* Test each client pointer dereference to check it's within the |
| 337 | client address space bounds */ |
| 338 | extern Bool VG_(clo_pointercheck); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 339 | |
rjwalsh | e4e779d | 2004-04-16 23:02:29 +0000 | [diff] [blame] | 340 | /* Set up the libc freeres wrapper */ |
| 341 | extern void VG_(intercept_libc_freeres_wrapper)(Addr); |
| 342 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 343 | /* --------------------------------------------------------------------- |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 344 | Profiling stuff |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 345 | ------------------------------------------------------------------ */ |
| 346 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 347 | extern void VGP_(init_profiling) ( void ); |
| 348 | extern void VGP_(done_profiling) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 349 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 350 | #undef VGP_PUSHCC |
| 351 | #undef VGP_POPCC |
| 352 | #define VGP_PUSHCC(x) if (VG_(clo_profile)) VGP_(pushcc)(x) |
| 353 | #define VGP_POPCC(x) if (VG_(clo_profile)) VGP_(popcc)(x) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 354 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 355 | /* --------------------------------------------------------------------- |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 356 | Tool-related types |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 357 | ------------------------------------------------------------------ */ |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 358 | /* These structs are not exposed to tools to mitigate possibility of |
| 359 | binary-incompatibilities when the core/tool interface changes. Instead, |
nethercote | 4606320 | 2004-09-02 08:51:43 +0000 | [diff] [blame] | 360 | set functions are provided (see include/tool.h). */ |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 361 | typedef |
| 362 | struct { |
| 363 | Char* name; |
| 364 | Char* version; |
| 365 | Char* description; |
| 366 | Char* copyright_author; |
| 367 | Char* bug_reports_to; |
njn | 120281f | 2003-02-03 12:20:07 +0000 | [diff] [blame] | 368 | UInt avg_translation_sizeB; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 369 | } |
| 370 | VgDetails; |
| 371 | |
| 372 | extern VgDetails VG_(details); |
| 373 | |
| 374 | /* If new fields are added to this type, update: |
| 375 | * - vg_main.c:initialisation of VG_(needs) |
| 376 | * - vg_main.c:sanity_check_needs() |
| 377 | * |
| 378 | * If the name of this type or any of its fields change, update: |
| 379 | * - dependent comments (just search for "VG_(needs)"). |
| 380 | */ |
| 381 | typedef |
| 382 | struct { |
| 383 | Bool libc_freeres; |
| 384 | Bool core_errors; |
njn | 95ec870 | 2004-11-22 16:46:13 +0000 | [diff] [blame] | 385 | Bool tool_errors; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 386 | Bool basic_block_discards; |
njn | abb14ad | 2004-11-24 16:57:16 +0000 | [diff] [blame] | 387 | Bool no_longer_used_1; // for backwards compatibility |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 388 | Bool command_line_options; |
| 389 | Bool client_requests; |
njn | 37624a7 | 2004-11-22 20:37:42 +0000 | [diff] [blame] | 390 | Bool no_longer_used_0; // for backwards compatibility |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 391 | Bool syscall_wrapper; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 392 | Bool sanity_checks; |
| 393 | Bool data_syms; |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 394 | Bool shadow_memory; |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 395 | } |
| 396 | VgNeeds; |
| 397 | |
| 398 | extern VgNeeds VG_(needs); |
| 399 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 400 | extern void VG_(tool_init_dlsym)(void *dlhandle); |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 401 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 402 | #include "vg_toolint.h" |
njn | 810086f | 2002-11-14 12:42:47 +0000 | [diff] [blame] | 403 | |
| 404 | /* --------------------------------------------------------------------- |
| 405 | Exports of vg_needs.c |
| 406 | ------------------------------------------------------------------ */ |
| 407 | |
| 408 | void VG_(sanity_check_needs)(void); |
| 409 | |
| 410 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 411 | Exports of vg_malloc2.c |
| 412 | ------------------------------------------------------------------ */ |
| 413 | |
| 414 | /* Allocation arenas. |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 415 | |
| 416 | CORE for the core's general use. |
nethercote | 60f5b82 | 2004-01-26 17:24:42 +0000 | [diff] [blame] | 417 | TOOL for the tool to use (and the only one it uses). |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 418 | SYMTAB for Valgrind's symbol table storage. |
| 419 | JITTER for small storage during translation. |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 420 | CLIENT for the client's mallocs/frees, if the tool replaces glibc's |
| 421 | malloc() et al -- redzone size is chosen by the tool. |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 422 | DEMANGLE for the C++ demangler. |
| 423 | EXECTXT for storing ExeContexts. |
| 424 | ERRORS for storing CoreErrors. |
| 425 | TRANSIENT for very short-term use. It should be empty in between uses. |
| 426 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 427 | 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] | 428 | */ |
| 429 | typedef Int ArenaId; |
| 430 | |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 431 | #define VG_N_ARENAS 9 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 432 | |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 433 | #define VG_AR_CORE 0 |
nethercote | 60f5b82 | 2004-01-26 17:24:42 +0000 | [diff] [blame] | 434 | #define VG_AR_TOOL 1 |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 435 | #define VG_AR_SYMTAB 2 |
| 436 | #define VG_AR_JITTER 3 |
| 437 | #define VG_AR_CLIENT 4 |
| 438 | #define VG_AR_DEMANGLE 5 |
| 439 | #define VG_AR_EXECTXT 6 |
| 440 | #define VG_AR_ERRORS 7 |
| 441 | #define VG_AR_TRANSIENT 8 |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 442 | |
nethercote | 2d5b816 | 2004-08-11 09:40:52 +0000 | [diff] [blame] | 443 | // This is both the minimum payload size of a malloc'd block, and its |
| 444 | // minimum alignment. Must be a power of 2 greater than 4, and should be |
| 445 | // greater than 8. |
| 446 | #define VG_MIN_MALLOC_SZB 8 |
| 447 | |
| 448 | // Round-up size for --sloppy-malloc=yes. |
| 449 | #define VG_SLOPPY_MALLOC_SZB 4 |
| 450 | |
nethercote | 7ac7f7b | 2004-11-02 12:36:02 +0000 | [diff] [blame] | 451 | extern void* VG_(arena_malloc) ( ArenaId arena, SizeT nbytes ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 452 | extern void VG_(arena_free) ( ArenaId arena, void* ptr ); |
nethercote | 7ac7f7b | 2004-11-02 12:36:02 +0000 | [diff] [blame] | 453 | extern void* VG_(arena_calloc) ( ArenaId arena, SizeT alignment, |
| 454 | SizeT nmemb, SizeT nbytes ); |
| 455 | extern void* VG_(arena_realloc) ( ArenaId arena, void* ptr, SizeT alignment, |
| 456 | SizeT size ); |
| 457 | extern void* VG_(arena_malloc_aligned) ( ArenaId aid, SizeT req_alignB, |
| 458 | SizeT req_pszB ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 459 | |
nethercote | 7ac7f7b | 2004-11-02 12:36:02 +0000 | [diff] [blame] | 460 | extern SizeT VG_(arena_payload_szB) ( ArenaId aid, void* payload ); |
njn | 8a6b6c0 | 2003-04-22 22:45:55 +0000 | [diff] [blame] | 461 | |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 462 | extern void VG_(sanity_check_malloc_all) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 463 | |
nethercote | 3a42fb8 | 2004-08-03 18:08:50 +0000 | [diff] [blame] | 464 | extern void VG_(print_all_arena_stats) ( void ); |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 465 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 466 | extern Bool VG_(is_empty_arena) ( ArenaId aid ); |
| 467 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 468 | /* --------------------------------------------------------------------- |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 469 | Exports of vg_intercept.c |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 470 | ------------------------------------------------------------------ */ |
| 471 | |
| 472 | /* This doesn't export code or data that valgrind.so needs to link |
| 473 | against. However, the scheduler does need to know the following |
| 474 | request codes. A few, publically-visible, request codes are also |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 475 | defined in valgrind.h, and similar headers for some tools. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 476 | |
njn | 4c79121 | 2003-05-02 17:53:54 +0000 | [diff] [blame] | 477 | #define VG_USERREQ__MALLOC 0x2001 |
| 478 | #define VG_USERREQ__FREE 0x2002 |
| 479 | |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 480 | /* (Fn, Arg): Create a new thread and run Fn applied to Arg in it. Fn |
| 481 | MUST NOT return -- ever. Eventually it will do either __QUIT or |
| 482 | __WAIT_JOINER. */ |
| 483 | #define VG_USERREQ__APPLY_IN_NEW_THREAD 0x3001 |
| 484 | |
| 485 | /* ( no-args ): calling thread disappears from the system forever. |
| 486 | Reclaim resources. */ |
| 487 | #define VG_USERREQ__QUIT 0x3002 |
| 488 | |
| 489 | /* ( void* ): calling thread waits for joiner and returns the void* to |
| 490 | it. */ |
| 491 | #define VG_USERREQ__WAIT_JOINER 0x3003 |
| 492 | |
| 493 | /* ( ThreadId, void** ): wait to join a thread. */ |
| 494 | #define VG_USERREQ__PTHREAD_JOIN 0x3004 |
| 495 | |
| 496 | /* Set cancellation state and type for this thread. */ |
| 497 | #define VG_USERREQ__SET_CANCELSTATE 0x3005 |
| 498 | #define VG_USERREQ__SET_CANCELTYPE 0x3006 |
| 499 | |
| 500 | /* ( no-args ): Test if we are at a cancellation point. */ |
| 501 | #define VG_USERREQ__TESTCANCEL 0x3007 |
| 502 | |
| 503 | /* ( ThreadId, &thread_exit_wrapper is the only allowable arg ): call |
| 504 | with this arg to indicate that a cancel is now pending for the |
| 505 | specified thread. */ |
| 506 | #define VG_USERREQ__SET_CANCELPEND 0x3008 |
| 507 | |
| 508 | /* Set/get detach state for this thread. */ |
| 509 | #define VG_USERREQ__SET_OR_GET_DETACH 0x3009 |
| 510 | |
thughes | e321d49 | 2004-10-17 15:00:20 +0000 | [diff] [blame] | 511 | #define VG_USERREQ__PTHREAD_GET_THREADID 0x300A |
| 512 | #define VG_USERREQ__PTHREAD_MUTEX_LOCK 0x300B |
| 513 | #define VG_USERREQ__PTHREAD_MUTEX_TIMEDLOCK 0x300C |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 514 | #define VG_USERREQ__PTHREAD_MUTEX_TRYLOCK 0x300D |
| 515 | #define VG_USERREQ__PTHREAD_MUTEX_UNLOCK 0x300E |
| 516 | #define VG_USERREQ__PTHREAD_COND_WAIT 0x300F |
| 517 | #define VG_USERREQ__PTHREAD_COND_TIMEDWAIT 0x3010 |
| 518 | #define VG_USERREQ__PTHREAD_COND_SIGNAL 0x3011 |
| 519 | #define VG_USERREQ__PTHREAD_COND_BROADCAST 0x3012 |
| 520 | #define VG_USERREQ__PTHREAD_KEY_CREATE 0x3013 |
| 521 | #define VG_USERREQ__PTHREAD_KEY_DELETE 0x3014 |
sewardj | 00a66b1 | 2002-10-12 16:42:35 +0000 | [diff] [blame] | 522 | #define VG_USERREQ__PTHREAD_SETSPECIFIC_PTR 0x3015 |
| 523 | #define VG_USERREQ__PTHREAD_GETSPECIFIC_PTR 0x3016 |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 524 | #define VG_USERREQ__READ_MILLISECOND_TIMER 0x3017 |
| 525 | #define VG_USERREQ__PTHREAD_SIGMASK 0x3018 |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 526 | #define VG_USERREQ__SIGWAIT 0x3019 /* unused */ |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 527 | #define VG_USERREQ__PTHREAD_KILL 0x301A |
| 528 | #define VG_USERREQ__PTHREAD_YIELD 0x301B |
sewardj | 00a66b1 | 2002-10-12 16:42:35 +0000 | [diff] [blame] | 529 | #define VG_USERREQ__PTHREAD_KEY_VALIDATE 0x301C |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 530 | |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 531 | #define VG_USERREQ__CLEANUP_PUSH 0x3020 |
| 532 | #define VG_USERREQ__CLEANUP_POP 0x3021 |
sewardj | 870497a | 2002-05-29 01:06:47 +0000 | [diff] [blame] | 533 | #define VG_USERREQ__GET_KEY_D_AND_S 0x3022 |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 534 | |
sewardj | ef037c7 | 2002-05-30 00:40:03 +0000 | [diff] [blame] | 535 | #define VG_USERREQ__NUKE_OTHER_THREADS 0x3023 |
sewardj | efbfcdf | 2002-06-19 17:35:45 +0000 | [diff] [blame] | 536 | |
| 537 | /* Ask how many signal handler returns have happened to this |
| 538 | thread. */ |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 539 | #define VG_USERREQ__GET_N_SIGS_RETURNED 0x3024 /* unused */ |
sewardj | ef037c7 | 2002-05-30 00:40:03 +0000 | [diff] [blame] | 540 | |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 541 | /* Get/set entries for a thread's pthread_atfork stack. */ |
| 542 | #define VG_USERREQ__SET_FHSTACK_USED 0x3025 |
| 543 | #define VG_USERREQ__GET_FHSTACK_USED 0x3026 |
| 544 | #define VG_USERREQ__SET_FHSTACK_ENTRY 0x3027 |
| 545 | #define VG_USERREQ__GET_FHSTACK_ENTRY 0x3028 |
sewardj | efbfcdf | 2002-06-19 17:35:45 +0000 | [diff] [blame] | 546 | |
nethercote | f971ab7 | 2004-08-02 16:27:40 +0000 | [diff] [blame] | 547 | /* Denote the finish of __libc_freeres_wrapper(). */ |
sewardj | 1fe7b00 | 2002-07-16 01:43:15 +0000 | [diff] [blame] | 548 | #define VG_USERREQ__LIBC_FREERES_DONE 0x3029 |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 549 | |
| 550 | /* Allocate RT signals */ |
| 551 | #define VG_USERREQ__GET_SIGRT_MIN 0x302B |
| 552 | #define VG_USERREQ__GET_SIGRT_MAX 0x302C |
| 553 | #define VG_USERREQ__ALLOC_RTSIG 0x302D |
| 554 | |
| 555 | /* Hook for replace_malloc.o to get malloc functions */ |
| 556 | #define VG_USERREQ__GET_MALLOCFUNCS 0x3030 |
| 557 | |
thughes | daa3456 | 2004-06-27 12:48:53 +0000 | [diff] [blame] | 558 | /* Get stack information for a thread. */ |
| 559 | #define VG_USERREQ__GET_STACK_INFO 0x3033 |
| 560 | |
sewardj | 45b4b37 | 2002-04-16 22:50:32 +0000 | [diff] [blame] | 561 | /* Cosmetic ... */ |
| 562 | #define VG_USERREQ__GET_PTHREAD_TRACE_LEVEL 0x3101 |
sewardj | 4dced35 | 2002-06-04 22:54:20 +0000 | [diff] [blame] | 563 | /* Log a pthread error from client-space. Cosmetic. */ |
| 564 | #define VG_USERREQ__PTHREAD_ERROR 0x3102 |
fitzhardinge | 39de4b4 | 2003-10-31 07:12:21 +0000 | [diff] [blame] | 565 | /* Internal equivalent of VALGRIND_PRINTF . */ |
| 566 | #define VG_USERREQ__INTERNAL_PRINTF 0x3103 |
| 567 | /* Internal equivalent of VALGRIND_PRINTF_BACKTRACE . */ |
| 568 | #define VG_USERREQ__INTERNAL_PRINTF_BACKTRACE 0x3104 |
sewardj | 45b4b37 | 2002-04-16 22:50:32 +0000 | [diff] [blame] | 569 | |
sewardj | 54cacf0 | 2002-04-12 23:24:59 +0000 | [diff] [blame] | 570 | /* |
nethercote | 5a2664c | 2004-09-02 15:37:39 +0000 | [diff] [blame] | 571 | In core_asm.h: |
sewardj | 54cacf0 | 2002-04-12 23:24:59 +0000 | [diff] [blame] | 572 | #define VG_USERREQ__SIGNAL_RETURNS 0x4001 |
sewardj | 54cacf0 | 2002-04-12 23:24:59 +0000 | [diff] [blame] | 573 | */ |
| 574 | |
rjwalsh | e4e779d | 2004-04-16 23:02:29 +0000 | [diff] [blame] | 575 | #define VG_INTERCEPT_PREFIX "_vgi__" |
| 576 | #define VG_INTERCEPT_PREFIX_LEN 6 |
| 577 | #define VG_INTERCEPT(name) _vgi__##name |
| 578 | #define VG_INTERCEPT_ALIAS(name) "_vgi__" #name |
| 579 | |
| 580 | #define VG_WRAPPER_PREFIX "_vgw__" |
| 581 | #define VG_WRAPPER_PREFIX_LEN 6 |
| 582 | #define VG_WRAPPER(name) _vgw__##name |
| 583 | #define VG_WRAPPER_ALIAS(name) "_vgw__" #name |
| 584 | |
njn | 4c79121 | 2003-05-02 17:53:54 +0000 | [diff] [blame] | 585 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 586 | struct vg_mallocfunc_info { |
| 587 | /* things vg_replace_malloc.o needs to know about */ |
njn | d225283 | 2004-11-26 10:53:33 +0000 | [diff] [blame] | 588 | Addr tl_malloc; |
| 589 | Addr tl_calloc; |
| 590 | Addr tl_realloc; |
| 591 | Addr tl_memalign; |
| 592 | Addr tl___builtin_new; |
| 593 | Addr tl___builtin_vec_new; |
| 594 | Addr tl_free; |
| 595 | Addr tl___builtin_delete; |
| 596 | Addr tl___builtin_vec_delete; |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 597 | |
| 598 | Addr arena_payload_szB; |
| 599 | |
| 600 | Bool clo_sloppy_malloc; |
| 601 | Bool clo_trace_malloc; |
| 602 | }; |
sewardj | 1fe7b00 | 2002-07-16 01:43:15 +0000 | [diff] [blame] | 603 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 604 | /* --------------------------------------------------------------------- |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 605 | Exports of vg_defaults.c |
| 606 | ------------------------------------------------------------------ */ |
| 607 | |
njn | d225283 | 2004-11-26 10:53:33 +0000 | [diff] [blame] | 608 | extern Bool VG_(tl_malloc_called_by_scheduler); |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 609 | |
nethercote | f9b5941 | 2004-09-10 15:33:32 +0000 | [diff] [blame] | 610 | /* --------------------------------------------------------------------- |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 611 | Exports of vg_libpthread.c |
| 612 | ------------------------------------------------------------------ */ |
| 613 | |
| 614 | /* Replacements for pthread types, shared between vg_libpthread.c and |
| 615 | vg_scheduler.c. See comment in vg_libpthread.c above the other |
| 616 | vg_pthread_*_t types for a description of how these are used. */ |
| 617 | |
| 618 | struct _vg_pthread_fastlock |
| 619 | { |
| 620 | long int __vg_status; /* "Free" or "taken" or head of waiting list */ |
| 621 | int __vg_spinlock; /* Used by compare_and_swap emulation. Also, |
| 622 | adaptive SMP lock stores spin count here. */ |
| 623 | }; |
| 624 | |
| 625 | typedef struct |
| 626 | { |
| 627 | int __vg_m_reserved; /* Reserved for future use */ |
| 628 | int __vg_m_count; /* Depth of recursive locking */ |
| 629 | /*_pthread_descr*/ void* __vg_m_owner; /* Owner thread (if recursive or errcheck) */ |
| 630 | int __vg_m_kind; /* Mutex kind: fast, recursive or errcheck */ |
| 631 | struct _vg_pthread_fastlock __vg_m_lock; /* Underlying fast lock */ |
| 632 | } vg_pthread_mutex_t; |
| 633 | |
| 634 | typedef struct |
| 635 | { |
| 636 | struct _vg_pthread_fastlock __vg_c_lock; /* Protect against concurrent access */ |
nethercote | dffad08 | 2004-02-28 23:32:11 +0000 | [diff] [blame] | 637 | /*_pthread_descr*/ void* __vg_c_waiting; /* Threads waiting on this condition */ |
| 638 | |
| 639 | // Nb: the following padding removed because it was missing from an |
| 640 | // earlier glibc, so the size test in the CONVERT macro was failing. |
| 641 | // --njn |
| 642 | |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 643 | // Padding ensures the size is 48 bytes |
nethercote | dffad08 | 2004-02-28 23:32:11 +0000 | [diff] [blame] | 644 | /*char __vg_padding[48 - sizeof(struct _vg_pthread_fastlock) |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 645 | - sizeof(void*) - sizeof(long long)]; |
nethercote | dffad08 | 2004-02-28 23:32:11 +0000 | [diff] [blame] | 646 | long long __vg_align;*/ |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 647 | } vg_pthread_cond_t; |
| 648 | |
| 649 | |
| 650 | /* --------------------------------------------------------------------- |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 651 | Exports of vg_scheduler.c |
| 652 | ------------------------------------------------------------------ */ |
| 653 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 654 | typedef |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 655 | enum ThreadStatus { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 656 | VgTs_Empty, /* this slot is not in use */ |
| 657 | VgTs_Runnable, /* waiting to be scheduled */ |
| 658 | VgTs_WaitJoiner, /* waiting for someone to do join on me */ |
| 659 | VgTs_WaitJoinee, /* waiting for the thread I did join on */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 660 | VgTs_WaitMX, /* waiting on a mutex */ |
sewardj | 3b5d886 | 2002-04-20 13:53:23 +0000 | [diff] [blame] | 661 | VgTs_WaitCV, /* waiting on a condition variable */ |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 662 | VgTs_WaitSys, /* waiting for a syscall to complete */ |
| 663 | VgTs_Sleeping, /* sleeping for a while */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 664 | } |
| 665 | ThreadStatus; |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 666 | |
thughes | 11975ff | 2004-06-12 12:58:22 +0000 | [diff] [blame] | 667 | typedef |
| 668 | enum CleanupType { |
| 669 | VgCt_None, /* this cleanup entry is not initialised */ |
| 670 | VgCt_Function, /* an old-style function pointer cleanup */ |
| 671 | VgCt_Longjmp /* a new-style longjmp based cleanup */ |
| 672 | } |
| 673 | CleanupType; |
| 674 | |
thughes | daa3456 | 2004-06-27 12:48:53 +0000 | [diff] [blame] | 675 | /* Information on a thread's stack. */ |
| 676 | typedef |
| 677 | struct { |
| 678 | Addr base; |
| 679 | UInt size; |
| 680 | UInt guardsize; |
| 681 | } |
| 682 | StackInfo; |
| 683 | |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 684 | /* An entry in a threads's cleanup stack. */ |
| 685 | typedef |
| 686 | struct { |
thughes | 11975ff | 2004-06-12 12:58:22 +0000 | [diff] [blame] | 687 | CleanupType type; |
| 688 | union { |
| 689 | struct { |
| 690 | void (*fn)(void*); |
| 691 | void* arg; |
| 692 | } function; |
| 693 | struct { |
thughes | ebed998 | 2004-06-12 17:25:25 +0000 | [diff] [blame] | 694 | void *ub; |
thughes | 11975ff | 2004-06-12 12:58:22 +0000 | [diff] [blame] | 695 | int ctype; |
| 696 | } longjmp; |
| 697 | } data; |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 698 | } |
| 699 | CleanupEntry; |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 700 | |
| 701 | /* An entry in a thread's fork-handler stack. */ |
| 702 | typedef |
| 703 | struct { |
| 704 | void (*prepare)(void); |
| 705 | void (*parent)(void); |
| 706 | void (*child)(void); |
| 707 | } |
| 708 | ForkHandlerEntry; |
| 709 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 710 | typedef struct ProxyLWP ProxyLWP; |
sewardj | 2cb0034 | 2002-06-28 01:46:26 +0000 | [diff] [blame] | 711 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 712 | //typedef |
njn | 7271864 | 2003-07-24 08:45:32 +0000 | [diff] [blame] | 713 | struct _ThreadState { |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 714 | /* ThreadId == 0 (and hence vg_threads[0]) is NEVER USED. |
| 715 | The thread identity is simply the index in vg_threads[]. |
| 716 | ThreadId == 1 is the root thread and has the special property |
| 717 | that we don't try and allocate or deallocate its stack. For |
| 718 | convenience of generating error message, we also put the |
| 719 | ThreadId in this tid field, but be aware that it should |
| 720 | ALWAYS == the index in vg_threads[]. */ |
| 721 | ThreadId tid; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 722 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 723 | /* Current scheduling status. |
sewardj | 5f07b66 | 2002-04-23 16:52:51 +0000 | [diff] [blame] | 724 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 725 | Complications: whenever this is set to VgTs_WaitMX, you |
| 726 | should also set .m_edx to whatever the required return value |
| 727 | is for pthread_mutex_lock / pthread_cond_timedwait for when |
| 728 | the mutex finally gets unblocked. */ |
| 729 | ThreadStatus status; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 730 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 731 | /* When .status == WaitMX, points to the mutex I am waiting for. |
| 732 | When .status == WaitCV, points to the mutex associated with |
| 733 | the condition variable indicated by the .associated_cv field. |
| 734 | In all other cases, should be NULL. */ |
nethercote | 1f0173b | 2004-02-28 15:40:36 +0000 | [diff] [blame] | 735 | vg_pthread_mutex_t* associated_mx; |
sewardj | 3b5d886 | 2002-04-20 13:53:23 +0000 | [diff] [blame] | 736 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 737 | /* When .status == WaitCV, points to the condition variable I am |
| 738 | waiting for. In all other cases, should be NULL. */ |
| 739 | void* /*pthread_cond_t* */ associated_cv; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 740 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 741 | /* If VgTs_Sleeping, this is when we should wake up, measured in |
njn | 6c84655 | 2003-09-16 07:41:43 +0000 | [diff] [blame] | 742 | milliseconds as supplied by VG_(read_millisecond_timer). |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 743 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 744 | If VgTs_WaitCV, this indicates the time at which |
| 745 | pthread_cond_timedwait should wake up. If == 0xFFFFFFFF, |
| 746 | this means infinitely far in the future, viz, |
| 747 | pthread_cond_wait. */ |
| 748 | UInt awaken_at; |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 749 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 750 | /* If VgTs_WaitJoiner, return value, as generated by joinees. */ |
| 751 | void* joinee_retval; |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 752 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 753 | /* If VgTs_WaitJoinee, place to copy the return value to, and |
| 754 | the identity of the thread we're waiting for. */ |
| 755 | void** joiner_thread_return; |
| 756 | ThreadId joiner_jee_tid; |
sewardj | 8ad94e1 | 2002-05-29 00:10:20 +0000 | [diff] [blame] | 757 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 758 | /* If VgTs_WaitSys, this is the syscall we're currently running */ |
| 759 | Int syscallno; |
| 760 | |
thughes | baa46e5 | 2004-07-29 17:44:23 +0000 | [diff] [blame] | 761 | /* If VgTs_WaitSys, this is the syscall flags */ |
| 762 | UInt sys_flags; |
| 763 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 764 | /* Details about this thread's proxy LWP */ |
| 765 | ProxyLWP *proxy; |
| 766 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 767 | /* Whether or not detached. */ |
| 768 | Bool detached; |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 769 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 770 | /* Cancelability state and type. */ |
| 771 | Bool cancel_st; /* False==PTH_CANCEL_DISABLE; True==.._ENABLE */ |
| 772 | Bool cancel_ty; /* False==PTH_CANC_ASYNCH; True==..._DEFERRED */ |
| 773 | |
| 774 | /* Pointer to fn to call to do cancellation. Indicates whether |
| 775 | or not cancellation is pending. If NULL, not pending. Else |
| 776 | should be &thread_exit_wrapper(), indicating that |
| 777 | cancallation is pending. */ |
| 778 | void (*cancel_pend)(void*); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 779 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 780 | /* The cleanup stack. */ |
| 781 | Int custack_used; |
| 782 | CleanupEntry custack[VG_N_CLEANUPSTACK]; |
sewardj | 5f07b66 | 2002-04-23 16:52:51 +0000 | [diff] [blame] | 783 | |
sewardj | 00a66b1 | 2002-10-12 16:42:35 +0000 | [diff] [blame] | 784 | /* A pointer to the thread's-specific-data. This is handled almost |
| 785 | entirely from vg_libpthread.c. We just provide hooks to get and |
| 786 | set this ptr. This is either NULL, indicating the thread has |
| 787 | read/written none of its specifics so far, OR points to a |
| 788 | void*[VG_N_THREAD_KEYS], allocated and deallocated in |
| 789 | vg_libpthread.c. */ |
| 790 | void** specifics_ptr; |
sewardj | b48e500 | 2002-05-13 00:16:03 +0000 | [diff] [blame] | 791 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 792 | /* This thread's blocked-signals mask. Semantics is that for a |
| 793 | signal to be delivered to this thread, the signal must not be |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 794 | blocked by this signal mask. If more than one thread accepts a |
| 795 | signal, then it will be delivered to one at random. If all |
| 796 | threads block the signal, it will remain pending until either a |
| 797 | thread unblocks it or someone uses sigwaitsig/sigtimedwait. |
| 798 | |
| 799 | sig_mask reflects what the client told us its signal mask should |
| 800 | be, but isn't necessarily the current signal mask of the proxy |
| 801 | LWP: it may have more signals blocked because of signal |
| 802 | handling, or it may be different because of sigsuspend. |
| 803 | */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 804 | vki_sigset_t sig_mask; |
sewardj | b48e500 | 2002-05-13 00:16:03 +0000 | [diff] [blame] | 805 | |
fitzhardinge | f0dd7e1 | 2004-01-16 02:17:30 +0000 | [diff] [blame] | 806 | /* Effective signal mask. This is the mask which currently |
| 807 | applies; it may be different from sig_mask while a signal |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 808 | handler is running. |
| 809 | */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 810 | vki_sigset_t eff_sig_mask; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 811 | |
thughes | 8abf392 | 2004-10-16 10:59:49 +0000 | [diff] [blame] | 812 | /* Signal queue. This is used when the kernel doesn't route |
| 813 | signals properly in order to remember the signal information |
| 814 | while we are routing the signal. It is a circular queue with |
| 815 | insertions performed at the head and removals at the tail. |
| 816 | */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 817 | vki_siginfo_t sigqueue[VG_N_SIGNALQUEUE]; |
thughes | 8abf392 | 2004-10-16 10:59:49 +0000 | [diff] [blame] | 818 | Int sigqueue_head; |
| 819 | Int sigqueue_tail; |
| 820 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 821 | /* Stacks. When a thread slot is freed, we don't deallocate its |
| 822 | stack; we just leave it lying around for the next use of the |
| 823 | slot. If the next use of the slot requires a larger stack, |
| 824 | only then is the old one deallocated and a new one |
| 825 | allocated. |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 826 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 827 | For the main thread (threadid == 0), this mechanism doesn't |
| 828 | apply. We don't know the size of the stack since we didn't |
| 829 | allocate it, and furthermore we never reallocate it. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 830 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 831 | /* The allocated size of this thread's stack (permanently zero |
| 832 | if this is ThreadId == 0, since we didn't allocate its stack) */ |
| 833 | UInt stack_size; |
sewardj | 1e8cdc9 | 2002-04-18 11:37:52 +0000 | [diff] [blame] | 834 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 835 | /* Address of the lowest word in this thread's stack. NULL means |
| 836 | not allocated yet. |
| 837 | */ |
| 838 | Addr stack_base; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 839 | |
thughes | daa3456 | 2004-06-27 12:48:53 +0000 | [diff] [blame] | 840 | /* The allocated size of this thread's stack's guard area (permanently |
| 841 | zero if this is ThreadId == 0, since we didn't allocate its stack) */ |
| 842 | UInt stack_guard_size; |
| 843 | |
sewardj | 92a5956 | 2002-09-30 00:53:10 +0000 | [diff] [blame] | 844 | /* Address of the highest legitimate word in this stack. This is |
| 845 | used for error messages only -- not critical for execution |
| 846 | correctness. Is is set for all stacks, specifically including |
| 847 | ThreadId == 0 (the main thread). */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 848 | Addr stack_highest_word; |
| 849 | |
fitzhardinge | 98c4dc0 | 2004-03-16 08:27:29 +0000 | [diff] [blame] | 850 | /* Alternate signal stack */ |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 851 | vki_stack_t altstack; |
fitzhardinge | 98c4dc0 | 2004-03-16 08:27:29 +0000 | [diff] [blame] | 852 | |
nethercote | c06e213 | 2004-09-03 13:45:29 +0000 | [diff] [blame] | 853 | /* Architecture-specific thread state */ |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 854 | ThreadArchState arch; |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 855 | }; |
| 856 | //ThreadState; |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 857 | |
| 858 | |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 859 | /* The thread table. */ |
| 860 | extern ThreadState VG_(threads)[VG_N_THREADS]; |
| 861 | |
| 862 | /* Check that tid is in range and denotes a non-Empty thread. */ |
sewardj | b48e500 | 2002-05-13 00:16:03 +0000 | [diff] [blame] | 863 | extern Bool VG_(is_valid_tid) ( ThreadId tid ); |
| 864 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 865 | /* Get the ThreadState for a particular thread */ |
| 866 | extern ThreadState *VG_(get_ThreadState)(ThreadId tid); |
| 867 | |
sewardj | ccef2e6 | 2002-05-29 19:26:32 +0000 | [diff] [blame] | 868 | /* Nuke all threads except tid. */ |
| 869 | extern void VG_(nuke_all_threads_except) ( ThreadId me ); |
| 870 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 871 | /* Give a hint to the scheduler that it may be a good time to find a |
| 872 | new runnable thread. If prefer_sched != VG_INVALID_THREADID, then |
| 873 | try to schedule that thread. |
| 874 | */ |
| 875 | extern void VG_(need_resched) ( ThreadId prefer_sched ); |
| 876 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 877 | /* Return codes from the scheduler. */ |
| 878 | typedef |
sewardj | 7e87e38 | 2002-05-03 19:09:05 +0000 | [diff] [blame] | 879 | enum { |
| 880 | VgSrc_Deadlock, /* no runnable threads and no prospect of any |
| 881 | even if we wait for a long time */ |
| 882 | VgSrc_ExitSyscall, /* client called exit(). This is the normal |
| 883 | route out. */ |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 884 | VgSrc_FatalSig /* Killed by the default action of a fatal |
| 885 | signal */ |
sewardj | 7e87e38 | 2002-05-03 19:09:05 +0000 | [diff] [blame] | 886 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 887 | VgSchedReturnCode; |
| 888 | |
sewardj | 7e87e38 | 2002-05-03 19:09:05 +0000 | [diff] [blame] | 889 | |
nethercote | 238a3c3 | 2004-08-09 13:13:31 +0000 | [diff] [blame] | 890 | // The scheduler. 'fatal_sigNo' is only set if VgSrc_FatalSig is returned. |
| 891 | extern VgSchedReturnCode VG_(scheduler) |
| 892 | ( Int* exit_code, ThreadId* last_run_thread, Int* fatal_sigNo ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 893 | |
| 894 | extern void VG_(scheduler_init) ( void ); |
| 895 | |
sewardj | 15a43e1 | 2002-04-17 19:35:12 +0000 | [diff] [blame] | 896 | extern void VG_(pp_sched_status) ( void ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 897 | |
nethercote | 75d2624 | 2004-08-01 22:59:18 +0000 | [diff] [blame] | 898 | // Longjmp back to the scheduler and thus enter the sighandler immediately. |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 899 | extern void VG_(resume_scheduler) ( Int sigNo, vki_siginfo_t *info ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 900 | |
nethercote | 238a3c3 | 2004-08-09 13:13:31 +0000 | [diff] [blame] | 901 | // Longjmp, ending the scheduler, when a fatal signal occurs in the client. |
| 902 | extern void VG_(scheduler_handle_fatal_signal)( Int sigNo ); |
| 903 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 904 | /* The red-zone size which we put at the bottom (highest address) of |
| 905 | thread stacks, for paranoia reasons. This can be arbitrary, and |
| 906 | doesn't really need to be set at compile time. */ |
nethercote | 6e4f9dc | 2004-07-30 23:36:37 +0000 | [diff] [blame] | 907 | #define VG_AR_CLIENT_STACKBASE_REDZONE_SZB 16 |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 908 | |
nethercote | aff1c77 | 2004-09-13 16:11:09 +0000 | [diff] [blame] | 909 | // Write a value to a client's thread register, and shadow (if necessary). |
| 910 | // Note that there are some further similar macros in the arch- and |
| 911 | // platform-specific parts; these ones are the totally generic ones. |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 912 | #define SET_THREAD_REG( zztid, zzval, zzGETREG, zzevent, zzargs... ) \ |
| 913 | do { zzGETREG(VG_(threads)[zztid].arch) = (zzval); \ |
| 914 | VG_TRACK( zzevent, ##zzargs ); \ |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 915 | } while (0) |
| 916 | |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 917 | #define SET_CLREQ_RETVAL(zztid, zzval) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 918 | SET_THREAD_REG(zztid, zzval, CLREQ_RET, post_reg_write, \ |
| 919 | Vg_CoreClientReq, zztid, O_CLREQ_RET, sizeof(UWord)) |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 920 | |
| 921 | #define SET_CLCALL_RETVAL(zztid, zzval, f) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 922 | SET_THREAD_REG(zztid, zzval, CLREQ_RET, post_reg_write_clientcall_return, \ |
| 923 | zztid, O_CLREQ_RET, sizeof(UWord), f) |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 924 | |
| 925 | #define SET_PTHREQ_ESP(zztid, zzval) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 926 | SET_THREAD_REG(zztid, zzval, STACK_PTR, post_reg_write, \ |
| 927 | Vg_CorePThread, zztid, O_STACK_PTR, sizeof(Addr)) |
njn | d304045 | 2003-05-19 15:04:06 +0000 | [diff] [blame] | 928 | |
| 929 | #define SET_PTHREQ_RETVAL(zztid, zzval) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 930 | SET_THREAD_REG(zztid, zzval, PTHREQ_RET, post_reg_write, \ |
| 931 | Vg_CorePThread, zztid, O_PTHREQ_RET, sizeof(UWord)) |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 932 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 933 | |
| 934 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 935 | Exports of vg_signals.c |
| 936 | ------------------------------------------------------------------ */ |
| 937 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 938 | extern Bool VG_(do_signal_routing); /* whether scheduler LWP has to route signals */ |
| 939 | |
| 940 | /* RT signal allocation */ |
| 941 | extern Int VG_(sig_rtmin); |
| 942 | extern Int VG_(sig_rtmax); |
| 943 | extern Int VG_(sig_alloc_rtsig) ( Int high ); |
| 944 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 945 | extern void VG_(sigstartup_actions) ( void ); |
| 946 | |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 947 | extern void VG_(deliver_signal) ( ThreadId tid, const vki_siginfo_t *, Bool async ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 948 | extern void VG_(unblock_host_signal) ( Int sigNo ); |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 949 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 950 | extern Bool VG_(is_sig_ign) ( Int sigNo ); |
| 951 | |
| 952 | /* Route pending signals from the scheduler LWP to the appropriate |
| 953 | thread LWP. */ |
| 954 | extern void VG_(route_signals) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 955 | |
| 956 | /* Fake system calls for signal handling. */ |
nethercote | 93d9aa1 | 2004-11-10 19:08:31 +0000 | [diff] [blame] | 957 | extern void VG_(do_sys_sigaltstack) ( ThreadId tid ); |
| 958 | extern void VG_(do_sys_sigaction) ( ThreadId tid ); |
| 959 | extern void VG_(do_sys_sigprocmask) ( ThreadId tid, Int how, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 960 | vki_sigset_t* set, |
| 961 | vki_sigset_t* oldset ); |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 962 | extern void VG_(do_pthread_sigmask_SCSS_upd) ( ThreadId tid, Int how, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 963 | vki_sigset_t* set, |
| 964 | vki_sigset_t* oldset ); |
sewardj | efbfcdf | 2002-06-19 17:35:45 +0000 | [diff] [blame] | 965 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 966 | /* Modify the current thread's state once we have detected it is |
| 967 | returning from a signal handler. */ |
nethercote | aff1c77 | 2004-09-13 16:11:09 +0000 | [diff] [blame] | 968 | extern Bool VG_(signal_returns) ( ThreadId tid ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 969 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 970 | /* Handy utilities to block/restore all host signals. */ |
| 971 | extern void VG_(block_all_host_signals) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 972 | ( /* OUT */ vki_sigset_t* saved_mask ); |
sewardj | 018f762 | 2002-05-15 21:13:39 +0000 | [diff] [blame] | 973 | extern void VG_(restore_all_host_signals) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 974 | ( /* IN */ vki_sigset_t* saved_mask ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 975 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 976 | extern void VG_(kill_self)(Int sigNo); |
| 977 | |
fitzhardinge | f1beb25 | 2004-03-16 09:49:08 +0000 | [diff] [blame] | 978 | /* These function synthesize a fault, as if the running instruction |
| 979 | had had a fault. These functions do not return - they longjmp back |
| 980 | into the scheduler so the signal can be delivered. */ |
| 981 | extern void VG_(synth_fault) (ThreadId tid); |
| 982 | extern void VG_(synth_fault_mapping)(ThreadId tid, Addr addr); |
| 983 | extern void VG_(synth_fault_perms) (ThreadId tid, Addr addr); |
| 984 | |
nethercote | 759dda3 | 2004-08-07 18:16:56 +0000 | [diff] [blame] | 985 | extern void VG_(get_sigstack_bounds)( Addr* low, Addr* high ); |
fitzhardinge | f1beb25 | 2004-03-16 09:49:08 +0000 | [diff] [blame] | 986 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 987 | /* --------------------------------------------------------------------- |
| 988 | Exports of vg_mylibc.c |
| 989 | ------------------------------------------------------------------ */ |
| 990 | |
njn | ca0518d | 2004-11-26 19:34:36 +0000 | [diff] [blame] | 991 | // Useful for making failing stubs, when certain things haven't yet been |
| 992 | // implemented. |
| 993 | #define I_die_here \ |
| 994 | VG_(core_assert_fail) ("Unimplemented functionality", \ |
| 995 | __FILE__, __LINE__, __PRETTY_FUNCTION__) |
| 996 | |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 997 | #define vg_assert(expr) \ |
| 998 | ((void) ((expr) ? 0 : \ |
| 999 | (VG_(core_assert_fail) (VG__STRING(expr), \ |
| 1000 | __FILE__, __LINE__, \ |
| 1001 | __PRETTY_FUNCTION__), 0))) |
| 1002 | __attribute__ ((__noreturn__)) |
daywalker | 3222e0a | 2003-09-18 01:39:50 +0000 | [diff] [blame] | 1003 | extern void VG_(core_assert_fail) ( const Char* expr, const Char* file, |
| 1004 | Int line, const Char* fn ); |
njn | e427a66 | 2002-10-02 11:08:25 +0000 | [diff] [blame] | 1005 | __attribute__ ((__noreturn__)) |
| 1006 | extern void VG_(core_panic) ( Char* str ); |
thughes | 5876d55 | 2004-09-26 18:44:06 +0000 | [diff] [blame] | 1007 | __attribute__ ((__noreturn__)) |
| 1008 | extern void VG_(core_panic_at) ( Char* str, ExeContext *ec ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1009 | |
nethercote | 05675c8 | 2004-08-04 10:37:49 +0000 | [diff] [blame] | 1010 | /* Tools use VG_(strdup)() which doesn't expose ArenaId */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1011 | extern Char* VG_(arena_strdup) ( ArenaId aid, const Char* s); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1012 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1013 | extern Int VG_(fcntl) ( Int fd, Int cmd, Int arg ); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1014 | extern Int VG_(poll)( struct vki_pollfd *, UInt nfds, Int timeout); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1015 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1016 | /* system/mman.h */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1017 | extern void* VG_(mmap)( void* start, SizeT length, UInt prot, UInt flags, |
nethercote | 5b9fafd | 2004-11-04 18:39:22 +0000 | [diff] [blame] | 1018 | UInt sf_flags, UInt fd, OffT offset ); |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1019 | extern Int VG_(munmap)( void* start, SizeT length ); |
| 1020 | extern Int VG_(mprotect)( void *start, SizeT length, UInt prot ); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1021 | |
| 1022 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1023 | /* Move an fd into the Valgrind-safe range */ |
| 1024 | Int VG_(safe_fd)(Int oldfd); |
| 1025 | |
sewardj | 570f890 | 2002-11-03 11:44:36 +0000 | [diff] [blame] | 1026 | extern Int VG_(write_socket)( Int sd, void *msg, Int count ); |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 1027 | |
| 1028 | /* --- Connecting over the network --- */ |
| 1029 | extern Int VG_(connect_via_socket)( UChar* str ); |
| 1030 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1031 | /* Environment manipulations */ |
nethercote | 60a96c5 | 2004-08-03 13:08:31 +0000 | [diff] [blame] | 1032 | extern Char **VG_(env_setenv) ( Char ***envp, const Char* varname, |
| 1033 | const Char *val ); |
| 1034 | extern void VG_(env_unsetenv) ( Char **env, const Char *varname ); |
| 1035 | extern void VG_(env_remove_valgrind_env_stuff) ( Char** env ); |
sewardj | 570f890 | 2002-11-03 11:44:36 +0000 | [diff] [blame] | 1036 | |
| 1037 | /* --------------------------------------------------------------------- |
| 1038 | Exports of vg_message.c |
| 1039 | ------------------------------------------------------------------ */ |
| 1040 | |
| 1041 | /* Low-level -- send bytes directly to the message sink. Do not |
| 1042 | use. */ |
| 1043 | extern void VG_(send_bytes_to_logging_sink) ( Char* msg, Int nbytes ); |
| 1044 | |
nethercote | d1da90e | 2004-08-03 17:26:39 +0000 | [diff] [blame] | 1045 | // Functions for printing from code within Valgrind, but which runs on the |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1046 | // sim'd CPU. Defined here because needed for vg_libpthread.c, |
| 1047 | // vg_replace_malloc.c, plus the rest of the core. The weak attribute |
| 1048 | // ensures the multiple definitions are not a problem. They must be functions |
| 1049 | // rather than macros so that va_list can be used. |
| 1050 | |
| 1051 | __attribute__((weak)) |
| 1052 | int |
| 1053 | VALGRIND_INTERNAL_PRINTF(char *format, ...) |
| 1054 | { |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1055 | UWord _qzz_res = 0; |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1056 | va_list vargs; |
| 1057 | va_start(vargs, format); |
| 1058 | VALGRIND_MAGIC_SEQUENCE(_qzz_res, 0, VG_USERREQ__INTERNAL_PRINTF, |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1059 | (UWord)format, (UWord)vargs, 0, 0); |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1060 | va_end(vargs); |
| 1061 | return _qzz_res; |
| 1062 | } |
| 1063 | |
| 1064 | __attribute__((weak)) |
| 1065 | int |
| 1066 | VALGRIND_INTERNAL_PRINTF_BACKTRACE(char *format, ...) |
| 1067 | { |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1068 | UWord _qzz_res = 0; |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1069 | va_list vargs; |
| 1070 | va_start(vargs, format); |
| 1071 | VALGRIND_MAGIC_SEQUENCE(_qzz_res, 0, VG_USERREQ__INTERNAL_PRINTF_BACKTRACE, |
nethercote | be671db | 2004-10-26 11:44:46 +0000 | [diff] [blame] | 1072 | (UWord)format, (UWord)vargs, 0, 0); |
nethercote | c91ce8d | 2004-08-09 11:15:10 +0000 | [diff] [blame] | 1073 | va_end(vargs); |
| 1074 | return _qzz_res; |
| 1075 | } |
| 1076 | |
nethercote | d1da90e | 2004-08-03 17:26:39 +0000 | [diff] [blame] | 1077 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1078 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1079 | Exports of vg_demangle.c |
| 1080 | ------------------------------------------------------------------ */ |
| 1081 | |
| 1082 | extern void VG_(demangle) ( Char* orig, Char* result, Int result_size ); |
| 1083 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1084 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1085 | /* --------------------------------------------------------------------- |
| 1086 | Exports of vg_from_ucode.c |
| 1087 | ------------------------------------------------------------------ */ |
| 1088 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1089 | extern void VG_(print_ccall_stats) ( void ); |
| 1090 | extern void VG_(print_UInstr_histogram) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1091 | |
sewardj | 22854b9 | 2002-11-30 14:00:47 +0000 | [diff] [blame] | 1092 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1093 | /* --------------------------------------------------------------------- |
| 1094 | Exports of vg_to_ucode.c |
| 1095 | ------------------------------------------------------------------ */ |
| 1096 | |
fitzhardinge | c2dbbac | 2004-01-23 23:09:01 +0000 | [diff] [blame] | 1097 | Bool VG_(cpu_has_feature)(UInt feat); |
| 1098 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1099 | |
| 1100 | /* --------------------------------------------------------------------- |
| 1101 | Exports of vg_translate.c |
| 1102 | ------------------------------------------------------------------ */ |
| 1103 | |
nethercote | 4d71438 | 2004-10-13 09:47:24 +0000 | [diff] [blame] | 1104 | extern Bool VG_(translate) ( ThreadId tid, Addr orig_addr, Bool debugging ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1105 | |
sewardj | b5ff83e | 2002-12-01 19:40:49 +0000 | [diff] [blame] | 1106 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1107 | /* --------------------------------------------------------------------- |
| 1108 | Exports of vg_execontext.c. |
| 1109 | ------------------------------------------------------------------ */ |
| 1110 | |
nethercote | 4ad7431 | 2004-10-26 09:59:49 +0000 | [diff] [blame] | 1111 | /* 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] | 1112 | values are used in comparisons do remove duplicate errors, and for |
| 1113 | comparing against suppression specifications. The rest are purely |
| 1114 | informational (but often important). */ |
| 1115 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1116 | struct _ExeContext { |
| 1117 | struct _ExeContext * next; |
| 1118 | /* Variable-length array. The size is VG_(clo_backtrace_size); at |
nethercote | 86c5dcb | 2004-09-05 21:32:37 +0000 | [diff] [blame] | 1119 | least 1, at most VG_DEEPEST_BACKTRACE. [0] is the current IP, |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1120 | [1] is its caller, [2] is the caller of [1], etc. */ |
nethercote | 86c5dcb | 2004-09-05 21:32:37 +0000 | [diff] [blame] | 1121 | Addr ips[0]; |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1122 | }; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1123 | |
| 1124 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1125 | /* Print stats (informational only). */ |
nethercote | 3a42fb8 | 2004-08-03 18:08:50 +0000 | [diff] [blame] | 1126 | extern void VG_(print_ExeContext_stats) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1127 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1128 | /* Like VG_(get_ExeContext), but with a slightly different type */ |
nethercote | 3d4a0b1 | 2004-09-06 15:14:46 +0000 | [diff] [blame] | 1129 | extern ExeContext* VG_(get_ExeContext2) ( Addr ip, Addr fp, |
| 1130 | Addr fp_min, Addr fp_max ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1131 | |
| 1132 | |
| 1133 | /* --------------------------------------------------------------------- |
| 1134 | Exports of vg_errcontext.c. |
| 1135 | ------------------------------------------------------------------ */ |
| 1136 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1137 | extern void VG_(load_suppressions) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1138 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1139 | extern void VG_(record_pthread_error) ( ThreadId tid, Char* msg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1140 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1141 | extern void VG_(show_all_errors) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1142 | |
nethercote | f2b1148 | 2004-08-02 12:36:01 +0000 | [diff] [blame] | 1143 | extern Bool VG_(is_action_requested) ( Char* action, Bool* clo ); |
njn | 43c799e | 2003-04-08 00:08:52 +0000 | [diff] [blame] | 1144 | |
nethercote | f2b1148 | 2004-08-02 12:36:01 +0000 | [diff] [blame] | 1145 | extern UInt VG_(get_n_errs_found) ( void ); |
njn | 47363ab | 2003-04-21 13:24:40 +0000 | [diff] [blame] | 1146 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1147 | /* --------------------------------------------------------------------- |
| 1148 | Exports of vg_procselfmaps.c |
| 1149 | ------------------------------------------------------------------ */ |
| 1150 | |
njn | fa1016e | 2003-09-25 17:54:11 +0000 | [diff] [blame] | 1151 | /* Reads /proc/self/maps into a static buffer which can be parsed by |
| 1152 | VG_(parse_procselfmaps)(). */ |
| 1153 | extern void VG_(read_procselfmaps) ( void ); |
njn | 3e88418 | 2003-04-15 13:03:23 +0000 | [diff] [blame] | 1154 | |
| 1155 | /* Parses /proc/self/maps, calling `record_mapping' for each entry. If |
| 1156 | `read_from_file' is True, /proc/self/maps is read directly, otherwise |
| 1157 | it's read from the buffer filled by VG_(read_procselfmaps_contents)(). */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1158 | extern |
njn | fa1016e | 2003-09-25 17:54:11 +0000 | [diff] [blame] | 1159 | void VG_(parse_procselfmaps) ( |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1160 | void (*record_mapping)( Addr addr, SizeT len, Char rr, Char ww, Char xx, |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1161 | UInt dev, UInt ino, ULong foff, |
| 1162 | const UChar *filename ) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1163 | |
| 1164 | |
| 1165 | /* --------------------------------------------------------------------- |
| 1166 | Exports of vg_symtab2.c |
| 1167 | ------------------------------------------------------------------ */ |
| 1168 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1169 | typedef struct _Segment Segment; |
| 1170 | |
| 1171 | extern Bool VG_(is_object_file) ( const void *hdr ); |
nethercote | 4ad7431 | 2004-10-26 09:59:49 +0000 | [diff] [blame] | 1172 | extern void VG_(mini_stack_dump) ( Addr ips[], UInt n_ips ); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1173 | extern SegInfo * VG_(read_seg_symbols) ( Segment *seg ); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1174 | extern void VG_(symtab_incref) ( SegInfo * ); |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1175 | extern void VG_(symtab_decref) ( SegInfo *, Addr a ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1176 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1177 | extern Bool VG_(get_fnname_nodemangle)( Addr a, Char* fnname, Int n_fnname ); |
sewardj | 25c7c3a | 2003-07-10 00:17:58 +0000 | [diff] [blame] | 1178 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1179 | /* Set up some default redirects */ |
| 1180 | extern void VG_(setup_code_redirect_table) ( void ); |
sewardj | 25c7c3a | 2003-07-10 00:17:58 +0000 | [diff] [blame] | 1181 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1182 | /* Redirection machinery */ |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1183 | extern Addr VG_(code_redirect) ( Addr orig ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1184 | |
| 1185 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1186 | Exports of vg_main.c |
| 1187 | ------------------------------------------------------------------ */ |
| 1188 | |
sewardj | b91ae7f | 2003-04-29 23:50:00 +0000 | [diff] [blame] | 1189 | /* Is this a SSE/SSE2-capable CPU? If so, we had better save/restore |
| 1190 | the SSE state all over the place. This is set up very early, in |
nethercote | 1d44709 | 2004-02-01 17:29:59 +0000 | [diff] [blame] | 1191 | main(). We have to determine it early since we can't even |
sewardj | b91ae7f | 2003-04-29 23:50:00 +0000 | [diff] [blame] | 1192 | correctly snapshot the startup machine state without it. */ |
| 1193 | extern Bool VG_(have_ssestate); |
| 1194 | |
sewardj | 73cf3bc | 2002-11-03 03:20:15 +0000 | [diff] [blame] | 1195 | /* Tell the logging mechanism whether we are logging to a file |
| 1196 | descriptor or a socket descriptor. */ |
| 1197 | extern Bool VG_(logging_to_filedes); |
| 1198 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1199 | /* Sanity checks which may be done at any time. The scheduler decides when. */ |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 1200 | extern void VG_(sanity_check_general) ( Bool force_expensive ); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1201 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1202 | /* Address space */ |
| 1203 | extern Addr VG_(client_base); /* client address space limits */ |
| 1204 | extern Addr VG_(client_end); |
| 1205 | extern Addr VG_(client_mapbase); /* base of mappings */ |
| 1206 | extern Addr VG_(clstk_base); /* client stack range */ |
| 1207 | extern Addr VG_(clstk_end); |
fitzhardinge | 9236079 | 2003-12-24 10:11:11 +0000 | [diff] [blame] | 1208 | extern Addr VG_(client_trampoline_code); |
| 1209 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1210 | extern Addr VG_(brk_base); /* start of brk */ |
| 1211 | extern Addr VG_(brk_limit); /* current brk */ |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 1212 | extern Addr VG_(shadow_base); /* tool's shadow memory */ |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1213 | extern Addr VG_(shadow_end); |
| 1214 | extern Addr VG_(valgrind_base); /* valgrind's address range */ |
nethercote | 820bd8c | 2004-09-07 23:04:49 +0000 | [diff] [blame] | 1215 | 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] | 1216 | |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1217 | extern struct vki_rlimit VG_(client_rlimit_data); /* client's original rlimit data */ |
| 1218 | extern struct vki_rlimit VG_(client_rlimit_stack); /* client's original rlimit stack */ |
fitzhardinge | b50068f | 2004-02-24 23:42:55 +0000 | [diff] [blame] | 1219 | |
fitzhardinge | a49f9b5 | 2003-12-16 22:26:45 +0000 | [diff] [blame] | 1220 | /* client executable file descriptor */ |
| 1221 | extern Int VG_(clexecfd); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1222 | |
nethercote | f6a1d50 | 2004-08-09 12:21:57 +0000 | [diff] [blame] | 1223 | // Help set up the child used when doing execve() with --trace-children=yes |
| 1224 | Char* VG_(build_child_VALGRINDCLO) ( Char* exename ); |
| 1225 | Char* VG_(build_child_exename) ( void ); |
| 1226 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1227 | /* Called when some unhandleable client behaviour is detected. |
| 1228 | Prints a msg and aborts. */ |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1229 | extern void VG_(unimplemented) ( Char* msg ) |
| 1230 | __attribute__((__noreturn__)); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1231 | |
nethercote | 04d0fbc | 2004-01-26 16:48:06 +0000 | [diff] [blame] | 1232 | /* Something of a function looking for a home ... start up debugger. */ |
| 1233 | extern void VG_(start_debugger) ( Int tid ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1234 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1235 | /* Counts downwards in vg_run_innerloop. */ |
| 1236 | extern UInt VG_(dispatch_ctr); |
| 1237 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1238 | /* Instruction pointer guest state offset, used by $VG_ARCH/dispatch.S. */ |
njn | 16de557 | 2004-11-27 14:27:21 +0000 | [diff] [blame] | 1239 | extern UInt VG_(instr_ptr_offset); |
| 1240 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1241 | /* Stats ... */ |
nethercote | 844e712 | 2004-08-02 15:27:22 +0000 | [diff] [blame] | 1242 | extern void VG_(print_scheduler_stats) ( void ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1243 | |
nethercote | 2e05c33 | 2004-09-06 16:43:37 +0000 | [diff] [blame] | 1244 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1245 | /* --------------------------------------------------------------------- |
| 1246 | Exports of vg_memory.c |
| 1247 | ------------------------------------------------------------------ */ |
| 1248 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1249 | /* A Segment is mapped piece of client memory. This covers all kinds |
| 1250 | of mapped memory (exe, brk, mmap, .so, shm, stack, etc) |
| 1251 | |
| 1252 | We try to encode everything we know about a particular segment here. |
| 1253 | */ |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1254 | #define SF_FIXED (1 << 0) // client asked for MAP_FIXED |
| 1255 | #define SF_SHARED (1 << 1) // shared |
| 1256 | #define SF_SHM (1 << 2) // SYSV SHM (also SF_SHARED) |
| 1257 | #define SF_MMAP (1 << 3) // mmap memory |
| 1258 | #define SF_FILE (1 << 4) // mapping is backed by a file |
| 1259 | #define SF_STACK (1 << 5) // is a stack |
| 1260 | #define SF_GROWDOWN (1 << 6) // segment grows down |
| 1261 | #define SF_GROWUP (1 << 7) // segment grows up |
| 1262 | #define SF_EXEC (1 << 8) // segment created by exec |
| 1263 | #define SF_DYNLIB (1 << 9) // mapped from dynamic library |
| 1264 | #define SF_NOSYMS (1 << 10) // don't load syms, even if present |
| 1265 | #define SF_BRK (1 << 11) // brk segment |
| 1266 | #define SF_CORE (1 << 12) // allocated by core on behalf of the client |
| 1267 | #define SF_VALGRIND (1 << 13) // a valgrind-internal mapping - not in client |
| 1268 | #define SF_CODE (1 << 14) // segment contains cached code |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1269 | |
| 1270 | struct _Segment { |
| 1271 | UInt prot; /* VKI_PROT_* */ |
| 1272 | UInt flags; /* SF_* */ |
| 1273 | |
| 1274 | Addr addr; /* mapped addr (page aligned) */ |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1275 | SizeT len; /* size of mapping (page aligned) */ |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1276 | |
| 1277 | /* These are valid if (flags & SF_FILE) */ |
| 1278 | ULong offset; /* file offset */ |
| 1279 | const Char *filename; /* filename (NULL if unknown) */ |
| 1280 | UInt dev; /* device */ |
| 1281 | UInt ino; /* inode */ |
| 1282 | |
| 1283 | SegInfo *symtab; /* symbol table */ |
| 1284 | }; |
| 1285 | |
| 1286 | /* segment mapped from a file descriptor */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1287 | 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] | 1288 | Int fd, ULong off, const Char *filename); |
| 1289 | |
| 1290 | /* segment mapped from a file */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1291 | 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] | 1292 | UInt dev, UInt ino, ULong off, const Char *filename); |
| 1293 | |
| 1294 | /* simple segment */ |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1295 | extern void VG_(map_segment) (Addr addr, SizeT len, UInt prot, UInt flags); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1296 | |
nethercote | 8b5f40c | 2004-11-02 13:29:50 +0000 | [diff] [blame] | 1297 | extern void VG_(unmap_range) (Addr addr, SizeT len); |
| 1298 | extern void VG_(mprotect_range)(Addr addr, SizeT len, UInt prot); |
| 1299 | extern Addr VG_(find_map_space)(Addr base, SizeT len, Bool for_client); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1300 | |
| 1301 | extern Segment *VG_(find_segment)(Addr a); |
fitzhardinge | d65dcad | 2004-03-13 02:06:58 +0000 | [diff] [blame] | 1302 | extern Segment *VG_(first_segment)(void); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1303 | extern Segment *VG_(next_segment)(Segment *); |
| 1304 | |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1305 | extern Bool VG_(seg_contains)(const Segment *s, Addr ptr, SizeT size); |
| 1306 | extern Bool VG_(seg_overlaps)(const Segment *s, Addr ptr, SizeT size); |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1307 | |
nethercote | 8991d5a | 2004-11-03 17:07:46 +0000 | [diff] [blame] | 1308 | extern void VG_(pad_address_space) (void); |
thughes | 9aaebc3 | 2004-07-15 23:13:37 +0000 | [diff] [blame] | 1309 | extern void VG_(unpad_address_space)(void); |
| 1310 | |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1311 | extern REGPARM(2) |
| 1312 | void VG_(unknown_SP_update) ( Addr old_SP, Addr new_SP ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1313 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1314 | /* --------------------------------------------------------------------- |
| 1315 | Exports of vg_proxylwp.c |
| 1316 | ------------------------------------------------------------------ */ |
| 1317 | |
| 1318 | /* Issue a syscall for thread tid */ |
| 1319 | extern Int VG_(sys_issue)(int tid); |
| 1320 | |
| 1321 | extern void VG_(proxy_init) ( void ); |
| 1322 | extern void VG_(proxy_create) ( ThreadId tid ); |
| 1323 | extern void VG_(proxy_delete) ( ThreadId tid, Bool force ); |
| 1324 | extern void VG_(proxy_results) ( void ); |
sewardj | 0a785fd | 2004-11-24 21:24:24 +0000 | [diff] [blame] | 1325 | extern void VG_(proxy_sendsig) ( ThreadId fromTid, ThreadId toTid, Int signo ); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1326 | extern void VG_(proxy_setsigmask)(ThreadId tid); |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1327 | extern void VG_(proxy_sigack) ( ThreadId tid, const vki_sigset_t *); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1328 | extern void VG_(proxy_abort_syscall) ( ThreadId tid ); |
| 1329 | extern void VG_(proxy_waitsig) ( void ); |
fitzhardinge | 31ba905 | 2004-01-16 02:15:23 +0000 | [diff] [blame] | 1330 | extern void VG_(proxy_wait_sys) (ThreadId tid, Bool restart); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1331 | |
nethercote | 85cdd34 | 2004-08-01 22:36:40 +0000 | [diff] [blame] | 1332 | extern void VG_(proxy_shutdown) ( void ); // shut down the syscall workers |
| 1333 | extern Int VG_(proxy_resfd) ( void ); // FD something can select on to know |
| 1334 | // a syscall finished |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1335 | |
| 1336 | /* Sanity-check the whole proxy-LWP machinery */ |
nethercote | 885dd91 | 2004-08-03 23:14:00 +0000 | [diff] [blame] | 1337 | void VG_(sanity_check_proxy)(void); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1338 | |
| 1339 | /* Send a signal from a thread's proxy to the thread. This longjmps |
| 1340 | back into the proxy's main loop, so it doesn't return. */ |
| 1341 | __attribute__ ((__noreturn__)) |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1342 | extern void VG_(proxy_handlesig)( const vki_siginfo_t *siginfo, |
nethercote | e5a3e2b | 2004-10-13 14:42:57 +0000 | [diff] [blame] | 1343 | Addr ip, Int sysnum ); |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1344 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1345 | /* --------------------------------------------------------------------- |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1346 | Exports of vg_syscalls.c |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1347 | ------------------------------------------------------------------ */ |
| 1348 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1349 | extern Char *VG_(resolve_filename)(Int fd); |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1350 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1351 | extern Bool VG_(pre_syscall) ( ThreadId tid ); |
fitzhardinge | 31ba905 | 2004-01-16 02:15:23 +0000 | [diff] [blame] | 1352 | extern void VG_(post_syscall)( ThreadId tid, Bool restart ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1353 | |
nethercote | 5b9fafd | 2004-11-04 18:39:22 +0000 | [diff] [blame] | 1354 | extern Bool VG_(is_kerror) ( Word res ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1355 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1356 | /* Internal atfork handlers */ |
| 1357 | typedef void (*vg_atfork_t)(ThreadId); |
| 1358 | 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] | 1359 | |
rjwalsh | f5f536f | 2003-11-17 17:45:00 +0000 | [diff] [blame] | 1360 | /* fd leakage calls. */ |
| 1361 | extern void VG_(init_preopened_fds) ( void ); |
nethercote | 3a42fb8 | 2004-08-03 18:08:50 +0000 | [diff] [blame] | 1362 | extern void VG_(show_open_fds) ( void ); |
rjwalsh | f5f536f | 2003-11-17 17:45:00 +0000 | [diff] [blame] | 1363 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1364 | // Return true if address range entirely contained within client |
| 1365 | // address space. |
| 1366 | Bool VG_(valid_client_addr)(Addr start, SizeT size, ThreadId tid, |
| 1367 | const Char *syscallname); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1368 | |
| 1369 | // Return true if we're allowed to use or create this fd. |
| 1370 | Bool VG_(fd_allowed)(Int fd, const Char *syscallname, ThreadId tid, Bool soft); |
| 1371 | |
| 1372 | void VG_(record_fd_open)(Int tid, Int fd, char *pathname); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1373 | |
| 1374 | // Flags describing syscall wrappers |
| 1375 | #define Special (1 << 0) |
| 1376 | #define MayBlock (1 << 1) |
| 1377 | #define NBRunInLWP (1 << 2) // non-blocking, but must run in LWP context |
| 1378 | #define PostOnFail (1 << 3) |
| 1379 | |
njn | 61fa0af | 2004-11-27 15:22:24 +0000 | [diff] [blame] | 1380 | // Templates for generating the PRE and POST macros. For ones that must be |
| 1381 | // publically visible, use an empty 'qual', 'prefix' should start with |
| 1382 | // "vgArch_", and there should be corresponding global declarations (like |
| 1383 | // the GEN_SYSCALL_WRAPPER ones below). Otherwise, use "static" for 'qual', |
| 1384 | // and "vgArch_" should not be in the 'prefix'. |
| 1385 | #define PRE_TEMPLATE(qual, prefix, name, f) \ |
| 1386 | qual UInt prefix##_##name##_flags = f; \ |
| 1387 | qual void prefix##_##name##_before(ThreadId tid, ThreadState *tst) |
| 1388 | #define POST_TEMPLATE(qual, prefix, name) \ |
| 1389 | qual void prefix##_##name##_after (ThreadId tid, ThreadState *tst) |
| 1390 | |
| 1391 | // This macro is used to write other macros which making writing syscall |
| 1392 | // tables easier. |
| 1393 | #define SYS_WRAPPER_ENTRY_X_(prefix, const, name) \ |
| 1394 | [const] = { &prefix##_##name##_flags, \ |
| 1395 | prefix##_##name##_before, NULL } |
| 1396 | #define SYS_WRAPPER_ENTRY_XY(prefix, const, name) \ |
| 1397 | [const] = { &prefix##_##name##_flags, \ |
| 1398 | prefix##_##name##_before, \ |
| 1399 | prefix##_##name##_after } |
| 1400 | |
| 1401 | // Macros for adding generic wrappers to a syscall table. |
| 1402 | #define GENX_(const, name) SYS_WRAPPER_ENTRY_X_(vgArch_gen, const, name) |
| 1403 | #define GENXY(const, name) SYS_WRAPPER_ENTRY_XY(vgArch_gen, const, name) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1404 | |
njn | 22cfccb | 2004-11-27 16:10:23 +0000 | [diff] [blame] | 1405 | // Space-saving macros for syscall wrappers |
| 1406 | #define SYSNO SYSCALL_NUM(tst->arch) // in PRE(x) |
| 1407 | #define RES SYSCALL_RET(tst->arch) // in POST(x) |
| 1408 | #define ARG1 SYSCALL_ARG1(tst->arch) |
| 1409 | #define ARG2 SYSCALL_ARG2(tst->arch) |
| 1410 | #define ARG3 SYSCALL_ARG3(tst->arch) |
| 1411 | #define ARG4 SYSCALL_ARG4(tst->arch) |
| 1412 | #define ARG5 SYSCALL_ARG5(tst->arch) |
| 1413 | #define ARG6 SYSCALL_ARG6(tst->arch) |
| 1414 | |
| 1415 | #define SET_RESULT(val) PLATFORM_SET_SYSCALL_RESULT(tst->arch, (val)) |
| 1416 | |
| 1417 | #define PRINT(format, args...) \ |
| 1418 | if (VG_(clo_trace_syscalls)) \ |
| 1419 | VG_(printf)(format, ## args) |
| 1420 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1421 | // Generic (platform-independent) syscall wrappers. These are generally |
| 1422 | // POSIX or something like that; those that are not POSIX are annotated |
| 1423 | // 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] | 1424 | // For many of them, it's unclear if they are generic, or Linux-specific, or |
| 1425 | // x86/Linux-specific, or something else again. |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1426 | // |
| 1427 | // Nb: This list may change over time... ones thought at first to be generic |
| 1428 | // may turn out not to be, and so be moved into OS-specific or |
| 1429 | // platform-specific files. If there's any doubt, I'm leaving them in here. |
| 1430 | // |
| 1431 | // Nb 2: if porting to a new OS, you should really check all these generic |
| 1432 | // wrappers to make sure they match your OS, painful as it might be. |
njn | 61fa0af | 2004-11-27 15:22:24 +0000 | [diff] [blame] | 1433 | // |
| 1434 | // For each generic ("gen") wrapper, we declare the pre-wrapper, the |
| 1435 | // post-wrapper (which is actually not always needed), and the associated |
| 1436 | // flags. |
| 1437 | #define GEN_SYSCALL_WRAPPER(x) \ |
| 1438 | extern UInt VGA_(gen_##x##_flags); \ |
| 1439 | extern void VGA_(gen_##x##_before)(ThreadId tid, ThreadState *tst); \ |
| 1440 | extern void VGA_(gen_##x##_after) (ThreadId tid, ThreadState *tst) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1441 | |
| 1442 | GEN_SYSCALL_WRAPPER(sys_ni_syscall); // * P -- unimplemented |
| 1443 | GEN_SYSCALL_WRAPPER(sys_exit); |
| 1444 | GEN_SYSCALL_WRAPPER(sys_fork); |
| 1445 | GEN_SYSCALL_WRAPPER(sys_read); |
| 1446 | GEN_SYSCALL_WRAPPER(sys_write); |
| 1447 | GEN_SYSCALL_WRAPPER(sys_open); |
| 1448 | GEN_SYSCALL_WRAPPER(sys_close); |
| 1449 | GEN_SYSCALL_WRAPPER(sys_waitpid); |
| 1450 | GEN_SYSCALL_WRAPPER(sys_creat); |
| 1451 | GEN_SYSCALL_WRAPPER(sys_link); |
| 1452 | GEN_SYSCALL_WRAPPER(sys_unlink); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1453 | GEN_SYSCALL_WRAPPER(sys_execve); // (*??) P |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1454 | GEN_SYSCALL_WRAPPER(sys_chdir); |
| 1455 | GEN_SYSCALL_WRAPPER(sys_time); |
| 1456 | GEN_SYSCALL_WRAPPER(sys_mknod); |
| 1457 | GEN_SYSCALL_WRAPPER(sys_chmod); |
| 1458 | GEN_SYSCALL_WRAPPER(sys_lseek); |
| 1459 | GEN_SYSCALL_WRAPPER(sys_getpid); |
| 1460 | GEN_SYSCALL_WRAPPER(sys_alarm); |
| 1461 | GEN_SYSCALL_WRAPPER(sys_pause); |
| 1462 | GEN_SYSCALL_WRAPPER(sys_utime); |
| 1463 | GEN_SYSCALL_WRAPPER(sys_access); |
| 1464 | GEN_SYSCALL_WRAPPER(sys_kill); |
| 1465 | GEN_SYSCALL_WRAPPER(sys_rename); |
| 1466 | GEN_SYSCALL_WRAPPER(sys_mkdir); |
| 1467 | GEN_SYSCALL_WRAPPER(sys_rmdir); |
| 1468 | GEN_SYSCALL_WRAPPER(sys_dup); |
| 1469 | GEN_SYSCALL_WRAPPER(sys_times); |
| 1470 | GEN_SYSCALL_WRAPPER(sys_fcntl); // POSIX (but complicated) |
| 1471 | GEN_SYSCALL_WRAPPER(sys_setpgid); |
| 1472 | GEN_SYSCALL_WRAPPER(sys_umask); |
| 1473 | GEN_SYSCALL_WRAPPER(sys_dup2); |
| 1474 | GEN_SYSCALL_WRAPPER(sys_getppid); |
| 1475 | GEN_SYSCALL_WRAPPER(sys_getpgrp); |
| 1476 | GEN_SYSCALL_WRAPPER(sys_setsid); |
| 1477 | GEN_SYSCALL_WRAPPER(sys_munmap); |
| 1478 | GEN_SYSCALL_WRAPPER(sys_truncate); |
| 1479 | GEN_SYSCALL_WRAPPER(sys_ftruncate); |
| 1480 | GEN_SYSCALL_WRAPPER(sys_fchmod); |
| 1481 | GEN_SYSCALL_WRAPPER(sys_msync); |
| 1482 | GEN_SYSCALL_WRAPPER(sys_readv); |
| 1483 | GEN_SYSCALL_WRAPPER(sys_writev); |
| 1484 | GEN_SYSCALL_WRAPPER(sys_getsid); |
| 1485 | GEN_SYSCALL_WRAPPER(sys_fdatasync); |
| 1486 | GEN_SYSCALL_WRAPPER(sys_mlock); |
| 1487 | GEN_SYSCALL_WRAPPER(sys_munlock); |
| 1488 | GEN_SYSCALL_WRAPPER(sys_mlockall); |
| 1489 | GEN_SYSCALL_WRAPPER(sys_munlockall); |
| 1490 | GEN_SYSCALL_WRAPPER(sys_sched_setparam); |
| 1491 | GEN_SYSCALL_WRAPPER(sys_sched_getparam); |
| 1492 | GEN_SYSCALL_WRAPPER(sys_sched_setscheduler); |
| 1493 | GEN_SYSCALL_WRAPPER(sys_sched_getscheduler); |
| 1494 | GEN_SYSCALL_WRAPPER(sys_sched_yield); |
| 1495 | GEN_SYSCALL_WRAPPER(sys_sched_get_priority_max); |
| 1496 | GEN_SYSCALL_WRAPPER(sys_sched_get_priority_min); |
| 1497 | GEN_SYSCALL_WRAPPER(sys_nanosleep); |
| 1498 | GEN_SYSCALL_WRAPPER(sys_mremap); // POSIX, but Linux arg order may be odd |
| 1499 | GEN_SYSCALL_WRAPPER(sys_getuid); |
| 1500 | GEN_SYSCALL_WRAPPER(sys_getgid); |
| 1501 | GEN_SYSCALL_WRAPPER(sys_geteuid); |
| 1502 | GEN_SYSCALL_WRAPPER(sys_getegid); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1503 | GEN_SYSCALL_WRAPPER(sys_getpgid); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1504 | GEN_SYSCALL_WRAPPER(sys_fsync); |
| 1505 | GEN_SYSCALL_WRAPPER(sys_wait4); |
| 1506 | GEN_SYSCALL_WRAPPER(sys_mprotect); |
| 1507 | GEN_SYSCALL_WRAPPER(sys_sigprocmask); |
| 1508 | GEN_SYSCALL_WRAPPER(sys_timer_create); // Linux: varies across archs? |
| 1509 | GEN_SYSCALL_WRAPPER(sys_timer_settime); |
| 1510 | GEN_SYSCALL_WRAPPER(sys_timer_gettime); |
| 1511 | GEN_SYSCALL_WRAPPER(sys_timer_getoverrun); |
| 1512 | GEN_SYSCALL_WRAPPER(sys_timer_delete); |
| 1513 | GEN_SYSCALL_WRAPPER(sys_clock_settime); |
| 1514 | GEN_SYSCALL_WRAPPER(sys_clock_gettime); |
| 1515 | GEN_SYSCALL_WRAPPER(sys_clock_getres); |
| 1516 | GEN_SYSCALL_WRAPPER(sys_getcwd); |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1517 | GEN_SYSCALL_WRAPPER(sys_symlink); |
| 1518 | GEN_SYSCALL_WRAPPER(sys_getgroups); |
| 1519 | GEN_SYSCALL_WRAPPER(sys_setgroups); // SVr4, SVID, X/OPEN, 4.3BSD |
| 1520 | GEN_SYSCALL_WRAPPER(sys_chown); |
| 1521 | GEN_SYSCALL_WRAPPER(sys_setuid); |
| 1522 | GEN_SYSCALL_WRAPPER(sys_gettimeofday); |
| 1523 | GEN_SYSCALL_WRAPPER(sys_madvise); |
| 1524 | GEN_SYSCALL_WRAPPER(sys_sigpending); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1525 | |
| 1526 | // These ones aren't POSIX, but are in some standard and look reasonably |
| 1527 | // generic, and are the same for all architectures under Linux. |
| 1528 | GEN_SYSCALL_WRAPPER(sys_nice); // SVr4, SVID EXT, AT&T, X/OPEN, BSD 4.3 |
| 1529 | GEN_SYSCALL_WRAPPER(sys_sync); // SVr4, SVID, X/OPEN, BSD 4.3 |
| 1530 | GEN_SYSCALL_WRAPPER(sys_brk); // 4.3BSD |
| 1531 | GEN_SYSCALL_WRAPPER(sys_acct); // SVR4, non-POSIX |
| 1532 | GEN_SYSCALL_WRAPPER(sys_chroot); // SVr4, SVID, 4.4BSD, X/OPEN |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1533 | GEN_SYSCALL_WRAPPER(sys_readlink); // X/OPEN, 4.4BSD |
| 1534 | GEN_SYSCALL_WRAPPER(sys_fchdir); // SVr4, SVID, POSIX, X/OPEN, 4.4BSD |
| 1535 | GEN_SYSCALL_WRAPPER(sys_getdents); // SVr4,SVID |
| 1536 | GEN_SYSCALL_WRAPPER(sys_select); // 4.4BSD |
| 1537 | GEN_SYSCALL_WRAPPER(sys_flock); // 4.4BSD |
| 1538 | GEN_SYSCALL_WRAPPER(sys_poll); // XPG4-UNIX |
| 1539 | GEN_SYSCALL_WRAPPER(sys_getrusage); // SVr4, 4.3BSD |
| 1540 | GEN_SYSCALL_WRAPPER(sys_settimeofday); // SVr4, 4.3BSD (non-POSIX) |
| 1541 | GEN_SYSCALL_WRAPPER(sys_getpriority); // SVr4, 4.4BSD |
| 1542 | GEN_SYSCALL_WRAPPER(sys_setpriority); // SVr4, 4.4BSD |
| 1543 | GEN_SYSCALL_WRAPPER(sys_setitimer); // SVr4, 4.4BSD |
| 1544 | GEN_SYSCALL_WRAPPER(sys_getitimer); // SVr4, 4.4BSD |
| 1545 | GEN_SYSCALL_WRAPPER(sys_setreuid); // 4.3BSD |
| 1546 | GEN_SYSCALL_WRAPPER(sys_setregid); // 4.3BSD |
| 1547 | GEN_SYSCALL_WRAPPER(sys_fchown); // SVr4,4.3BSD |
| 1548 | GEN_SYSCALL_WRAPPER(sys_setgid); // SVr4,SVID |
| 1549 | GEN_SYSCALL_WRAPPER(sys_utimes); // 4.3BSD |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1550 | |
| 1551 | // These ones may be Linux specific... not sure. They use 16-bit gid_t and |
| 1552 | // uid_t types. The similarly named (minus the "16" suffix) ones below use |
| 1553 | // 32-bit versions of these types. |
| 1554 | GEN_SYSCALL_WRAPPER(sys_setuid16); // ## P |
| 1555 | GEN_SYSCALL_WRAPPER(sys_getuid16); // ## P |
| 1556 | GEN_SYSCALL_WRAPPER(sys_setgid16); // ## SVr4,SVID |
| 1557 | GEN_SYSCALL_WRAPPER(sys_getgid16); // ## P |
| 1558 | GEN_SYSCALL_WRAPPER(sys_geteuid16); // ## P |
| 1559 | GEN_SYSCALL_WRAPPER(sys_getegid16); // ## P |
| 1560 | GEN_SYSCALL_WRAPPER(sys_setreuid16); // ## BSD4.3 |
| 1561 | GEN_SYSCALL_WRAPPER(sys_setregid16); // ## BSD4.3 |
| 1562 | GEN_SYSCALL_WRAPPER(sys_getgroups16); // ## P |
| 1563 | GEN_SYSCALL_WRAPPER(sys_setgroups16); // ## SVr4, SVID, X/OPEN, 4.3BSD |
| 1564 | GEN_SYSCALL_WRAPPER(sys_fchown16); // ## SVr4,BSD4.3 |
| 1565 | GEN_SYSCALL_WRAPPER(sys_chown16); // ## P |
| 1566 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1567 | // Linux's funny many-in-one socketcall is certainly not generic, but I |
| 1568 | // didn't want to move it until necessary because it's big and has a lot of |
| 1569 | // associated junk. |
| 1570 | GEN_SYSCALL_WRAPPER(sys_socketcall); |
| 1571 | |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1572 | // Some archs on Linux do not match the generic wrapper for sys_pipe(). |
| 1573 | GEN_SYSCALL_WRAPPER(sys_pipe); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1574 | |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1575 | // May not be generic for every architecture under Linux. |
| 1576 | GEN_SYSCALL_WRAPPER(sys_sigaction); // (x86) P |
| 1577 | |
| 1578 | // Funny names, not sure... |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1579 | GEN_SYSCALL_WRAPPER(sys_newstat); // * P |
| 1580 | GEN_SYSCALL_WRAPPER(sys_newlstat); // * |
| 1581 | GEN_SYSCALL_WRAPPER(sys_newfstat); // * P (SVr4,BSD4.3) |
| 1582 | |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1583 | // For the remainder, not really sure yet |
| 1584 | GEN_SYSCALL_WRAPPER(old_mmap); // x86, weird arg passing |
| 1585 | GEN_SYSCALL_WRAPPER(sys_ptrace); // (x86?) (almost-P) |
| 1586 | GEN_SYSCALL_WRAPPER(sys_sigsuspend); // POSIX, but L (proto varies across archs) |
| 1587 | GEN_SYSCALL_WRAPPER(sys_setrlimit); // SVr4, 4.3BSD |
| 1588 | GEN_SYSCALL_WRAPPER(sys_ioctl); // x86? (various) |
| 1589 | GEN_SYSCALL_WRAPPER(sys_old_getrlimit); // SVr4, 4.3BSD L? |
| 1590 | GEN_SYSCALL_WRAPPER(sys_statfs); // * L? |
| 1591 | GEN_SYSCALL_WRAPPER(sys_fstatfs); // * L? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1592 | GEN_SYSCALL_WRAPPER(sys_iopl); // (x86/amd64) L |
| 1593 | GEN_SYSCALL_WRAPPER(sys_ipc); // (x86) L |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1594 | GEN_SYSCALL_WRAPPER(sys_newuname); // * P |
| 1595 | GEN_SYSCALL_WRAPPER(sys_init_module); // * L? |
| 1596 | GEN_SYSCALL_WRAPPER(sys_quotactl); // * (?) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1597 | GEN_SYSCALL_WRAPPER(sys_rt_sigaction); // (x86) () |
| 1598 | GEN_SYSCALL_WRAPPER(sys_rt_sigprocmask); // * ? |
| 1599 | GEN_SYSCALL_WRAPPER(sys_rt_sigpending); // * ? |
| 1600 | GEN_SYSCALL_WRAPPER(sys_rt_sigtimedwait); // * ? |
| 1601 | GEN_SYSCALL_WRAPPER(sys_rt_sigqueueinfo); // * ? |
| 1602 | GEN_SYSCALL_WRAPPER(sys_rt_sigsuspend); // () () |
| 1603 | GEN_SYSCALL_WRAPPER(sys_pread64); // * (Unix98?) |
| 1604 | GEN_SYSCALL_WRAPPER(sys_pwrite64); // * (Unix98?) |
| 1605 | GEN_SYSCALL_WRAPPER(sys_capget); // * L? |
| 1606 | GEN_SYSCALL_WRAPPER(sys_capset); // * L? |
| 1607 | GEN_SYSCALL_WRAPPER(sys_sigaltstack); // (x86) (XPG4-UNIX) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1608 | GEN_SYSCALL_WRAPPER(sys_getpmsg); // (?) (?) |
| 1609 | GEN_SYSCALL_WRAPPER(sys_putpmsg); // (?) (?) |
| 1610 | GEN_SYSCALL_WRAPPER(sys_getrlimit); // * (?) |
| 1611 | GEN_SYSCALL_WRAPPER(sys_mmap2); // (x86?) P? |
| 1612 | GEN_SYSCALL_WRAPPER(sys_truncate64); // %% (P?) |
| 1613 | GEN_SYSCALL_WRAPPER(sys_ftruncate64); // %% (P?) |
| 1614 | GEN_SYSCALL_WRAPPER(sys_stat64); // %% (?) |
| 1615 | GEN_SYSCALL_WRAPPER(sys_lstat64); // %% (?) |
| 1616 | GEN_SYSCALL_WRAPPER(sys_fstat64); // %% (?) |
| 1617 | GEN_SYSCALL_WRAPPER(sys_lchown); // * (L?) |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1618 | GEN_SYSCALL_WRAPPER(sys_mincore); // * L? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1619 | GEN_SYSCALL_WRAPPER(sys_getdents64); // * (SVr4,SVID?) |
| 1620 | GEN_SYSCALL_WRAPPER(sys_fcntl64); // * P? |
| 1621 | GEN_SYSCALL_WRAPPER(sys_setxattr); // * L? |
| 1622 | GEN_SYSCALL_WRAPPER(sys_lsetxattr); // * L? |
| 1623 | GEN_SYSCALL_WRAPPER(sys_fsetxattr); // * L? |
| 1624 | GEN_SYSCALL_WRAPPER(sys_getxattr); // * L? |
| 1625 | GEN_SYSCALL_WRAPPER(sys_lgetxattr); // * L? |
| 1626 | GEN_SYSCALL_WRAPPER(sys_fgetxattr); // * L? |
| 1627 | GEN_SYSCALL_WRAPPER(sys_listxattr); // * L? |
| 1628 | GEN_SYSCALL_WRAPPER(sys_llistxattr); // * L? |
| 1629 | GEN_SYSCALL_WRAPPER(sys_flistxattr); // * L? |
| 1630 | GEN_SYSCALL_WRAPPER(sys_removexattr); // * L? |
| 1631 | GEN_SYSCALL_WRAPPER(sys_lremovexattr); // * L? |
| 1632 | GEN_SYSCALL_WRAPPER(sys_fremovexattr); // * L? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1633 | GEN_SYSCALL_WRAPPER(sys_sched_setaffinity); // * L? |
| 1634 | GEN_SYSCALL_WRAPPER(sys_sched_getaffinity); // * L? |
nethercote | 3d5e910 | 2004-11-17 18:22:38 +0000 | [diff] [blame] | 1635 | GEN_SYSCALL_WRAPPER(sys_exit_group); // * ? |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1636 | GEN_SYSCALL_WRAPPER(sys_lookup_dcookie); // (*/32/64) L |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1637 | GEN_SYSCALL_WRAPPER(sys_set_tid_address); // * ? |
| 1638 | GEN_SYSCALL_WRAPPER(sys_statfs64); // * (?) |
| 1639 | GEN_SYSCALL_WRAPPER(sys_fstatfs64); // * (?) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1640 | GEN_SYSCALL_WRAPPER(sys_mq_open); // * P? |
| 1641 | GEN_SYSCALL_WRAPPER(sys_mq_unlink); // * P? |
| 1642 | GEN_SYSCALL_WRAPPER(sys_mq_timedsend); // * P? |
| 1643 | GEN_SYSCALL_WRAPPER(sys_mq_timedreceive); // * P? |
| 1644 | GEN_SYSCALL_WRAPPER(sys_mq_notify); // * P? |
| 1645 | GEN_SYSCALL_WRAPPER(sys_mq_getsetattr); // * P? |
| 1646 | |
| 1647 | #undef GEN_SYSCALL_WRAPPER |
| 1648 | |
| 1649 | // Macros used in syscall wrappers |
sewardj | 8b635a4 | 2004-11-22 19:01:47 +0000 | [diff] [blame] | 1650 | /* PRRAn == "pre-register-read-argument" |
| 1651 | PRRSN == "pre-register-read-syscall" |
| 1652 | */ |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1653 | |
| 1654 | #define PRRSN \ |
njn | 26f0251 | 2004-11-22 18:33:15 +0000 | [diff] [blame] | 1655 | TL_(pre_reg_read)(Vg_CoreSysCall, tid, "(syscallno)", \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1656 | O_SYSCALL_NUM, sizeof(UWord)); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1657 | #define PRRAn(n,s,t,a) \ |
njn | 26f0251 | 2004-11-22 18:33:15 +0000 | [diff] [blame] | 1658 | TL_(pre_reg_read)(Vg_CoreSysCall, tid, s"("#a")", \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1659 | O_SYSCALL_ARG##n, sizeof(t)); |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1660 | #define PRE_REG_READ0(tr, s) \ |
| 1661 | if (VG_(defined_pre_reg_read)()) { \ |
| 1662 | PRRSN; \ |
| 1663 | } |
| 1664 | #define PRE_REG_READ1(tr, s, t1, a1) \ |
| 1665 | if (VG_(defined_pre_reg_read)()) { \ |
| 1666 | PRRSN; \ |
| 1667 | PRRAn(1,s,t1,a1); \ |
| 1668 | } |
| 1669 | #define PRE_REG_READ2(tr, s, t1, a1, t2, a2) \ |
| 1670 | if (VG_(defined_pre_reg_read)()) { \ |
| 1671 | PRRSN; \ |
| 1672 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); \ |
| 1673 | } |
| 1674 | #define PRE_REG_READ3(tr, s, t1, a1, t2, a2, t3, a3) \ |
| 1675 | if (VG_(defined_pre_reg_read)()) { \ |
| 1676 | PRRSN; \ |
| 1677 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1678 | } |
| 1679 | #define PRE_REG_READ4(tr, s, t1, a1, t2, a2, t3, a3, t4, a4) \ |
| 1680 | if (VG_(defined_pre_reg_read)()) { \ |
| 1681 | PRRSN; \ |
| 1682 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1683 | PRRAn(4,s,t4,a4); \ |
| 1684 | } |
| 1685 | #define PRE_REG_READ5(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) \ |
| 1686 | if (VG_(defined_pre_reg_read)()) { \ |
| 1687 | PRRSN; \ |
| 1688 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1689 | PRRAn(4,s,t4,a4); PRRAn(5,s,t5,a5); \ |
| 1690 | } |
| 1691 | #define PRE_REG_READ6(tr, s, t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6) \ |
| 1692 | if (VG_(defined_pre_reg_read)()) { \ |
| 1693 | PRRSN; \ |
| 1694 | PRRAn(1,s,t1,a1); PRRAn(2,s,t2,a2); PRRAn(3,s,t3,a3); \ |
| 1695 | PRRAn(4,s,t4,a4); PRRAn(5,s,t5,a5); PRRAn(6,s,t6,a6); \ |
| 1696 | } |
| 1697 | |
| 1698 | #define PRE_MEM_READ(zzname, zzaddr, zzlen) \ |
| 1699 | VG_TRACK( pre_mem_read, Vg_CoreSysCall, tid, zzname, zzaddr, zzlen) |
| 1700 | |
| 1701 | #define PRE_MEM_RASCIIZ(zzname, zzaddr) \ |
| 1702 | VG_TRACK( pre_mem_read_asciiz, Vg_CoreSysCall, tid, zzname, zzaddr) |
| 1703 | |
| 1704 | #define PRE_MEM_WRITE(zzname, zzaddr, zzlen) \ |
| 1705 | VG_TRACK( pre_mem_write, Vg_CoreSysCall, tid, zzname, zzaddr, zzlen) |
| 1706 | |
| 1707 | #define POST_MEM_WRITE(zzaddr, zzlen) \ |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1708 | VG_TRACK( post_mem_write, Vg_CoreSysCall, tid, zzaddr, zzlen) |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1709 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1710 | /* --------------------------------------------------------------------- |
| 1711 | Exports of vg_transtab.c |
| 1712 | ------------------------------------------------------------------ */ |
| 1713 | |
njn25 | e49d8e7 | 2002-09-23 09:36:25 +0000 | [diff] [blame] | 1714 | /* The fast-cache for tt-lookup. */ |
| 1715 | extern Addr VG_(tt_fast)[VG_TT_FAST_SIZE]; |
| 1716 | |
nethercote | 92e7b7f | 2004-08-07 17:52:25 +0000 | [diff] [blame] | 1717 | extern void VG_(init_tt_tc) ( void ); |
sewardj | c0d8f68 | 2002-11-30 00:49:43 +0000 | [diff] [blame] | 1718 | extern void VG_(add_to_trans_tab) ( Addr orig_addr, Int orig_size, |
sewardj | 8b635a4 | 2004-11-22 19:01:47 +0000 | [diff] [blame] | 1719 | Addr trans_addr, Int trans_size ); |
nethercote | 92e7b7f | 2004-08-07 17:52:25 +0000 | [diff] [blame] | 1720 | extern Addr VG_(search_transtab) ( Addr original_addr ); |
sewardj | 6c3769f | 2002-11-29 01:02:45 +0000 | [diff] [blame] | 1721 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1722 | extern void VG_(invalidate_translations) ( Addr start, UInt range ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1723 | |
sewardj | 4ccf707 | 2004-11-28 16:58:05 +0000 | [diff] [blame] | 1724 | extern void VG_(sanity_check_tt_tc) ( Char* caller ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1725 | |
nethercote | 92e7b7f | 2004-08-07 17:52:25 +0000 | [diff] [blame] | 1726 | extern void VG_(print_tt_tc_stats) ( void ); |
| 1727 | |
| 1728 | extern Int VG_(get_bbs_translated) ( void ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1729 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1730 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1731 | Exports of vg_syscall.S |
| 1732 | ------------------------------------------------------------------ */ |
| 1733 | |
jsgf | 855d93d | 2003-10-13 22:26:55 +0000 | [diff] [blame] | 1734 | extern Int VG_(do_syscall) ( UInt, ... ); |
| 1735 | extern Int VG_(clone) ( Int (*fn)(void *), void *stack, Int flags, void *arg, |
| 1736 | Int *child_tid, Int *parent_tid); |
fitzhardinge | 4f10ada | 2004-06-03 10:00:42 +0000 | [diff] [blame] | 1737 | extern void VG_(sigreturn)(void); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1738 | |
| 1739 | /* --------------------------------------------------------------------- |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1740 | Exports of vg_dispatch.S |
| 1741 | ------------------------------------------------------------------ */ |
| 1742 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1743 | /* Run a thread for a (very short) while, until some event happens |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1744 | which means we need to defer to the scheduler. This is passed |
| 1745 | a pointer to the VEX guest state (arch.vex). */ |
| 1746 | extern UInt VG_(run_innerloop) ( void* guest_state ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1747 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1748 | /* --------------------------------------------------------------------- |
| 1749 | Exports of vg_helpers.S |
| 1750 | ------------------------------------------------------------------ */ |
| 1751 | |
fitzhardinge | 9236079 | 2003-12-24 10:11:11 +0000 | [diff] [blame] | 1752 | /* Information about trampoline code (for signal return and syscalls) */ |
| 1753 | extern const Char VG_(trampoline_code_start); |
| 1754 | extern const Int VG_(trampoline_code_length); |
| 1755 | extern const Int VG_(tramp_sigreturn_offset); |
| 1756 | extern const Int VG_(tramp_syscall_offset); |
sewardj | 20917d8 | 2002-05-28 01:36:45 +0000 | [diff] [blame] | 1757 | |
njn | 4f9c934 | 2002-04-29 16:03:24 +0000 | [diff] [blame] | 1758 | /* --------------------------------------------------------------------- |
nethercote | 996901a | 2004-08-03 13:29:09 +0000 | [diff] [blame] | 1759 | Things relating to the used tool |
njn | 4f9c934 | 2002-04-29 16:03:24 +0000 | [diff] [blame] | 1760 | ------------------------------------------------------------------ */ |
| 1761 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1762 | #define VG_TRACK(fn, args...) \ |
| 1763 | do { \ |
| 1764 | if (VG_(defined_##fn)()) \ |
njn | 26f0251 | 2004-11-22 18:33:15 +0000 | [diff] [blame] | 1765 | TL_(fn)(args); \ |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1766 | } while(0) |
sewardj | 18d7513 | 2002-05-16 11:06:21 +0000 | [diff] [blame] | 1767 | |
fitzhardinge | 98abfc7 | 2003-12-16 02:05:15 +0000 | [diff] [blame] | 1768 | __attribute__ ((noreturn)) |
| 1769 | extern void VG_(missing_tool_func) ( const Char* fn ); |
sewardj | 18d7513 | 2002-05-16 11:06:21 +0000 | [diff] [blame] | 1770 | |
nethercote | c06e213 | 2004-09-03 13:45:29 +0000 | [diff] [blame] | 1771 | // --------------------------------------------------------------------- |
| 1772 | // Architecture-specific things defined in eg. x86/*.c |
| 1773 | // --------------------------------------------------------------------- |
| 1774 | |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1775 | // Accessors for the ThreadArchState |
| 1776 | #define INSTR_PTR(regs) ((regs).vex.ARCH_INSTR_PTR) |
| 1777 | #define STACK_PTR(regs) ((regs).vex.ARCH_STACK_PTR) |
| 1778 | #define FRAME_PTR(regs) ((regs).vex.ARCH_FRAME_PTR) |
| 1779 | |
| 1780 | #define CLREQ_ARGS(regs) ((regs).vex.ARCH_CLREQ_ARGS) |
| 1781 | #define PTHREQ_RET(regs) ((regs).vex.ARCH_PTHREQ_RET) |
| 1782 | #define CLREQ_RET(regs) ((regs).vex.ARCH_CLREQ_RET) |
| 1783 | |
njn | 16de557 | 2004-11-27 14:27:21 +0000 | [diff] [blame] | 1784 | // Offsets for the Vex state |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1785 | #define O_STACK_PTR (offsetof(VexGuestArchState, ARCH_STACK_PTR)) |
| 1786 | #define O_FRAME_PTR (offsetof(VexGuestArchState, ARCH_FRAME_PTR)) |
| 1787 | |
| 1788 | #define O_CLREQ_RET (offsetof(VexGuestArchState, ARCH_CLREQ_RET)) |
| 1789 | #define O_PTHREQ_RET (offsetof(VexGuestArchState, ARCH_PTHREQ_RET)) |
| 1790 | |
| 1791 | |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1792 | // Setting up the initial thread (1) state |
| 1793 | extern void |
| 1794 | VGA_(init_thread1state) ( Addr client_eip, |
| 1795 | Addr esp_at_startup, |
| 1796 | /*MOD*/ ThreadArchState* arch ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1797 | |
nethercote | c009ebe | 2004-09-13 11:05:11 +0000 | [diff] [blame] | 1798 | // Thread stuff |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1799 | extern void VGA_(clear_thread) ( ThreadArchState* ); |
| 1800 | extern void VGA_(cleanup_thread) ( ThreadArchState* ); |
| 1801 | extern void VGA_(setup_child) ( ThreadArchState*, ThreadArchState* ); |
nethercote | f9b5941 | 2004-09-10 15:33:32 +0000 | [diff] [blame] | 1802 | |
nethercote | 6b9c847 | 2004-09-13 13:16:40 +0000 | [diff] [blame] | 1803 | extern void VGA_(set_arg_and_bogus_ret) ( ThreadId tid, UWord arg, Addr ret ); |
| 1804 | extern void VGA_(thread_initial_stack) ( ThreadId tid, UWord arg, Addr ret ); |
| 1805 | |
nethercote | c009ebe | 2004-09-13 11:05:11 +0000 | [diff] [blame] | 1806 | // Symtab stuff |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1807 | extern UInt* VGA_(reg_addr_from_tst) ( Int regno, ThreadArchState* ); |
nethercote | cd65604 | 2004-09-11 23:48:22 +0000 | [diff] [blame] | 1808 | |
nethercote | fedd810 | 2004-09-13 15:19:34 +0000 | [diff] [blame] | 1809 | // Pointercheck |
| 1810 | extern Bool VGA_(setup_pointercheck) ( void ); |
| 1811 | |
| 1812 | // For attaching the debugger |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1813 | extern Int VGA_(ptrace_setregs_from_tst) ( Int pid, ThreadArchState* arch ); |
nethercote | fedd810 | 2004-09-13 15:19:34 +0000 | [diff] [blame] | 1814 | |
nethercote | 6eec460 | 2004-09-13 14:15:36 +0000 | [diff] [blame] | 1815 | // Signal stuff |
nethercote | 4ad7431 | 2004-10-26 09:59:49 +0000 | [diff] [blame] | 1816 | extern void VGA_(push_signal_frame) ( ThreadId tid, Addr sp_top_of_frame, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1817 | const vki_siginfo_t *siginfo, |
nethercote | 6eec460 | 2004-09-13 14:15:36 +0000 | [diff] [blame] | 1818 | void *handler, UInt flags, |
nethercote | 73b526f | 2004-10-31 18:48:21 +0000 | [diff] [blame] | 1819 | const vki_sigset_t *mask); |
nethercote | 6eec460 | 2004-09-13 14:15:36 +0000 | [diff] [blame] | 1820 | extern Int VGA_(pop_signal_frame) ( ThreadId tid ); |
| 1821 | |
nethercote | 9b3c765 | 2004-10-19 13:18:00 +0000 | [diff] [blame] | 1822 | // libpthread stuff |
njn | e7da73c | 2004-11-26 12:44:19 +0000 | [diff] [blame] | 1823 | typedef struct _ThreadArchAux ThreadArchAux; |
nethercote | 9b3c765 | 2004-10-19 13:18:00 +0000 | [diff] [blame] | 1824 | |
njn | e7da73c | 2004-11-26 12:44:19 +0000 | [diff] [blame] | 1825 | void VGA_(thread_create) ( ThreadArchAux *aux ); |
| 1826 | void VGA_(thread_wrapper)( ThreadArchAux *aux ); |
nethercote | 9b3c765 | 2004-10-19 13:18:00 +0000 | [diff] [blame] | 1827 | void VGA_(thread_exit) ( void ); |
| 1828 | |
| 1829 | Bool VGA_(has_tls) ( void ); |
| 1830 | |
| 1831 | #define MY__STRING(__str) #__str |
| 1832 | |
| 1833 | // Assertion to use in code running on the simulated CPU. |
| 1834 | #define my_assert(expr) \ |
| 1835 | ((void) ((expr) ? 0 : \ |
| 1836 | (VG_(user_assert_fail) (MY__STRING(expr), \ |
| 1837 | __FILE__, __LINE__, \ |
| 1838 | __PRETTY_FUNCTION__), 0))) |
| 1839 | |
| 1840 | extern void VG_(user_assert_fail) ( const Char* expr, const Char* file, |
| 1841 | Int line, const Char* fn ); |
| 1842 | |
| 1843 | |
nethercote | 41c75da | 2004-10-18 15:34:14 +0000 | [diff] [blame] | 1844 | // --------------------------------------------------------------------- |
| 1845 | // Platform-specific things defined in eg. x86/*.c |
| 1846 | // --------------------------------------------------------------------- |
nethercote | 775508a | 2004-09-07 22:38:23 +0000 | [diff] [blame] | 1847 | |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1848 | // Accessors for the ThreadArchState |
| 1849 | #define SYSCALL_NUM(regs) ((regs).vex.PLATFORM_SYSCALL_NUM) |
| 1850 | #define SYSCALL_ARG1(regs) ((regs).vex.PLATFORM_SYSCALL_ARG1) |
| 1851 | #define SYSCALL_ARG2(regs) ((regs).vex.PLATFORM_SYSCALL_ARG2) |
| 1852 | #define SYSCALL_ARG3(regs) ((regs).vex.PLATFORM_SYSCALL_ARG3) |
| 1853 | #define SYSCALL_ARG4(regs) ((regs).vex.PLATFORM_SYSCALL_ARG4) |
| 1854 | #define SYSCALL_ARG5(regs) ((regs).vex.PLATFORM_SYSCALL_ARG5) |
| 1855 | #define SYSCALL_ARG6(regs) ((regs).vex.PLATFORM_SYSCALL_ARG6) |
| 1856 | #define SYSCALL_RET(regs) ((regs).vex.PLATFORM_SYSCALL_RET) |
| 1857 | |
| 1858 | // Offsets for the shadow state |
njn | fcd5636 | 2004-11-24 18:31:40 +0000 | [diff] [blame] | 1859 | #define O_SYSCALL_NUM (offsetof(VexGuestArchState, PLATFORM_SYSCALL_NUM)) |
njn | cf45fd4 | 2004-11-24 16:30:22 +0000 | [diff] [blame] | 1860 | #define O_SYSCALL_ARG1 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG1)) |
| 1861 | #define O_SYSCALL_ARG2 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG2)) |
| 1862 | #define O_SYSCALL_ARG3 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG3)) |
| 1863 | #define O_SYSCALL_ARG4 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG4)) |
| 1864 | #define O_SYSCALL_ARG5 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG5)) |
| 1865 | #define O_SYSCALL_ARG6 (offsetof(VexGuestArchState, PLATFORM_SYSCALL_ARG6)) |
| 1866 | #define O_SYSCALL_RET (offsetof(VexGuestArchState, PLATFORM_SYSCALL_RET)) |
| 1867 | |
nethercote | 8ff888f | 2004-11-17 17:11:45 +0000 | [diff] [blame] | 1868 | struct SyscallTableEntry { |
| 1869 | UInt *flags_ptr; |
| 1870 | void (*before)(ThreadId tid, ThreadState *tst); |
| 1871 | void (*after) (ThreadId tid, ThreadState *tst); |
| 1872 | }; |
| 1873 | |
| 1874 | /* This table is the mapping from __NR_xxx syscall numbers to the PRE/POST |
| 1875 | wrappers for the relevant syscalls used in the OS kernel for that number. |
| 1876 | Note that the constant names don't always match the wrapper names in a |
| 1877 | straightforward way. For example, on x86/Linux: |
| 1878 | |
| 1879 | __NR_lchown --> sys_lchown16() |
| 1880 | __NR_lchown32 --> sys_lchown() |
| 1881 | __NR_select --> old_select() |
| 1882 | __NR__newselect --> sys_select() |
| 1883 | */ |
| 1884 | extern const struct SyscallTableEntry VGA_(syscall_table)[]; |
| 1885 | |
| 1886 | extern const UInt VGA_(syscall_table_size); |
| 1887 | |
sewardj | 2a99cf6 | 2004-11-24 10:44:19 +0000 | [diff] [blame] | 1888 | extern void VGA_(restart_syscall)(ThreadArchState* arch); |
nethercote | 24e0d44 | 2004-10-18 17:36:40 +0000 | [diff] [blame] | 1889 | |
njn | 7be3695 | 2004-11-24 18:14:41 +0000 | [diff] [blame] | 1890 | /* We need our own copy of VG_(do_syscall)() to handle a special |
| 1891 | race-condition. If we've got signals unblocked, and we take a |
| 1892 | signal in the gap either just before or after the syscall, we may |
| 1893 | end up not running the syscall at all, or running it more than |
| 1894 | once. |
| 1895 | |
| 1896 | The solution is to make the signal handler derive the proxy's |
| 1897 | precise state by looking to see which eip it is executing at |
| 1898 | exception time. |
| 1899 | |
| 1900 | Ranges: |
| 1901 | |
| 1902 | VGA_(sys_before) ... VGA_(sys_restarted): |
| 1903 | Setting up register arguments and running state. If |
| 1904 | interrupted, then the syscall should be considered to return |
| 1905 | ERESTARTSYS. |
| 1906 | |
| 1907 | VGA_(sys_restarted): |
| 1908 | If interrupted and eip==VGA_(sys_restarted), then either the syscall |
| 1909 | was about to start running, or it has run, was interrupted and |
| 1910 | the kernel wants to restart it. eax still contains the |
| 1911 | syscall number. If interrupted, then the syscall return value |
| 1912 | should be ERESTARTSYS. |
| 1913 | |
| 1914 | VGA_(sys_after): |
| 1915 | If interrupted and eip==VGA_(sys_after), the syscall either just |
| 1916 | finished, or it was interrupted and the kernel doesn't want to |
| 1917 | restart it. Either way, eax equals the correct return value |
| 1918 | (either the actual return value, or EINTR). |
| 1919 | |
| 1920 | VGA_(sys_after) ... VGA_(sys_done): |
| 1921 | System call is complete, but the state hasn't been updated, |
| 1922 | nor has the result been written back. eax contains the return |
| 1923 | value. |
| 1924 | |
| 1925 | Freakin' horrible... |
| 1926 | */ |
| 1927 | extern const Addr VGA_(sys_before), VGA_(sys_restarted), |
| 1928 | VGA_(sys_after), VGA_(sys_done); |
| 1929 | |
| 1930 | extern void VGA_(do_thread_syscall)(UWord sys, |
| 1931 | UWord arg1, UWord arg2, UWord arg3, |
| 1932 | UWord arg4, UWord arg5, UWord arg6, |
| 1933 | UWord *result, /*enum PXState*/Int *statep, |
| 1934 | /*enum PXState*/Int poststate); |
sewardj | 3b2736a | 2002-03-24 12:18:35 +0000 | [diff] [blame] | 1935 | |
| 1936 | /* --------------------------------------------------------------------- |
| 1937 | Finally - autoconf-generated settings |
| 1938 | ------------------------------------------------------------------ */ |
| 1939 | |
| 1940 | #include "config.h" |
| 1941 | |
nethercote | c06e213 | 2004-09-03 13:45:29 +0000 | [diff] [blame] | 1942 | #endif /* ndef __CORE_H */ |
| 1943 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1944 | /*--------------------------------------------------------------------*/ |
nethercote | 109d0df | 2004-09-02 08:10:13 +0000 | [diff] [blame] | 1945 | /*--- end ---*/ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1946 | /*--------------------------------------------------------------------*/ |