sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1 | /* |
| 2 | This file is part of drd, a data race detector. |
| 3 | |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 4 | Copyright (C) 2006-2008 Bart Van Assche |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 5 | bart.vanassche@gmail.com |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or |
| 8 | modify it under the terms of the GNU General Public License as |
| 9 | published by the Free Software Foundation; either version 2 of the |
| 10 | License, or (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, but |
| 13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 20 | 02111-1307, USA. |
| 21 | |
| 22 | The GNU General Public License is contained in the file COPYING. |
| 23 | */ |
| 24 | |
| 25 | |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 26 | #include "drd_barrier.h" |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 27 | #include "drd_clientreq.h" |
bart | 4bb53d8 | 2008-02-28 19:06:34 +0000 | [diff] [blame] | 28 | #include "drd_clientobj.h" |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 29 | #include "drd_cond.h" |
| 30 | #include "drd_error.h" |
| 31 | #include "drd_malloc_wrappers.h" |
| 32 | #include "drd_mutex.h" |
bart | 5bd9f2d | 2008-03-03 20:31:58 +0000 | [diff] [blame] | 33 | #include "drd_rwlock.h" |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 34 | #include "drd_segment.h" |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 35 | #include "drd_semaphore.h" |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 36 | #include "drd_suppression.h" |
| 37 | #include "drd_thread.h" |
| 38 | #include "drd_track.h" |
| 39 | #include "drd_vc.h" |
sewardj | 721ad7b | 2007-11-30 08:30:29 +0000 | [diff] [blame] | 40 | #include "priv_drd_clientreq.h" |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 41 | #include "pub_drd_bitmap.h" |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame] | 42 | #include "pub_tool_vki.h" // Must be included before pub_tool_libcproc |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 43 | #include "pub_tool_basics.h" |
| 44 | #include "pub_tool_debuginfo.h" // VG_(describe_IP)() |
| 45 | #include "pub_tool_libcassert.h" // tl_assert() |
| 46 | #include "pub_tool_libcbase.h" // VG_(strcmp) |
| 47 | #include "pub_tool_libcprint.h" // VG_(printf) |
| 48 | #include "pub_tool_libcproc.h" |
| 49 | #include "pub_tool_machine.h" |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame] | 50 | #include "pub_tool_mallocfree.h" // VG_(malloc)(), VG_(free)() |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 51 | #include "pub_tool_options.h" // command line options |
bart | ceded21 | 2008-03-26 17:39:52 +0000 | [diff] [blame] | 52 | #include "pub_tool_replacemalloc.h" |
bart | 72b751c | 2008-03-01 13:44:24 +0000 | [diff] [blame] | 53 | #include "pub_tool_threadstate.h" // VG_(get_running_tid)() |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 54 | #include "pub_tool_tooliface.h" |
| 55 | |
| 56 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 57 | // Function declarations. |
| 58 | |
| 59 | static void drd_start_client_code(const ThreadId tid, const ULong bbs_done); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 60 | |
| 61 | |
| 62 | // Local variables. |
| 63 | |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 64 | static Bool s_drd_check_stack_var = False; |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 65 | static Bool s_drd_print_stats = False; |
| 66 | static Bool s_drd_trace_fork_join = False; |
| 67 | static Bool s_drd_var_info = False; |
| 68 | static Bool s_show_stack_usage = False; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 69 | |
| 70 | |
| 71 | // |
| 72 | // Implement the needs_command_line_options for drd. |
| 73 | // |
| 74 | |
| 75 | static Bool drd_process_cmd_line_option(Char* arg) |
| 76 | { |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 77 | int segment_merging = -1; |
| 78 | int show_confl_seg = -1; |
| 79 | int trace_barrier = -1; |
| 80 | int trace_clientobj = -1; |
| 81 | int trace_cond = -1; |
| 82 | int trace_csw = -1; |
| 83 | int trace_danger_set = -1; |
| 84 | int trace_mutex = -1; |
| 85 | int trace_rwlock = -1; |
| 86 | int trace_segment = -1; |
| 87 | int trace_semaphore = -1; |
| 88 | int trace_suppression = -1; |
| 89 | Char* trace_address = 0; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 90 | |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 91 | VG_BOOL_CLO (arg, "--check-stack-var", s_drd_check_stack_var) |
| 92 | else VG_BOOL_CLO(arg, "--drd-stats", s_drd_print_stats) |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 93 | else VG_BOOL_CLO(arg, "--segment-merging", segment_merging) |
bart | 16d76e5 | 2008-03-18 17:08:08 +0000 | [diff] [blame] | 94 | else VG_BOOL_CLO(arg, "--show-confl-seg", show_confl_seg) |
bart | 912ab8d | 2008-03-29 09:31:43 +0000 | [diff] [blame] | 95 | else VG_BOOL_CLO(arg, "--show-stack-usage", s_show_stack_usage) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 96 | else VG_BOOL_CLO(arg, "--trace-barrier", trace_barrier) |
| 97 | else VG_BOOL_CLO(arg, "--trace-clientobj", trace_clientobj) |
| 98 | else VG_BOOL_CLO(arg, "--trace-cond", trace_cond) |
| 99 | else VG_BOOL_CLO(arg, "--trace-csw", trace_csw) |
| 100 | else VG_BOOL_CLO(arg, "--trace-danger-set", trace_danger_set) |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 101 | else VG_BOOL_CLO(arg, "--trace-fork-join", s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 102 | else VG_BOOL_CLO(arg, "--trace-mutex", trace_mutex) |
| 103 | else VG_BOOL_CLO(arg, "--trace-rwlock", trace_rwlock) |
| 104 | else VG_BOOL_CLO(arg, "--trace-segment", trace_segment) |
| 105 | else VG_BOOL_CLO(arg, "--trace-semaphore", trace_semaphore) |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 106 | else VG_BOOL_CLO(arg, "--trace-suppr", trace_suppression) |
bart | 95761b5 | 2008-03-29 08:34:03 +0000 | [diff] [blame] | 107 | else VG_BOOL_CLO(arg, "--var-info", s_drd_var_info) |
bart | 952e1a0 | 2008-04-06 13:06:36 +0000 | [diff] [blame] | 108 | else VG_STR_CLO (arg, "--trace-addr", trace_address) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 109 | else |
bart | ceded21 | 2008-03-26 17:39:52 +0000 | [diff] [blame] | 110 | return VG_(replacement_malloc_process_cmd_line_option)(arg); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 111 | |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 112 | if (segment_merging != -1) |
| 113 | thread_set_segment_merging(segment_merging); |
| 114 | if (show_confl_seg != -1) |
bart | 16d76e5 | 2008-03-18 17:08:08 +0000 | [diff] [blame] | 115 | set_show_conflicting_segments(show_confl_seg); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 116 | if (trace_address) |
| 117 | { |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 118 | const Addr addr = VG_(strtoll16)(trace_address, 0); |
| 119 | drd_start_tracing_address_range(addr, addr + 1); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 120 | } |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 121 | if (trace_barrier != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 122 | barrier_set_trace(trace_barrier); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 123 | if (trace_clientobj != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 124 | clientobj_set_trace(trace_clientobj); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 125 | if (trace_cond != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 126 | cond_set_trace(trace_cond); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 127 | if (trace_csw != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 128 | thread_trace_context_switches(trace_csw); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 129 | if (trace_danger_set != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 130 | thread_trace_danger_set(trace_danger_set); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 131 | if (trace_mutex != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 132 | mutex_set_trace(trace_mutex); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 133 | if (trace_rwlock != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 134 | rwlock_set_trace(trace_rwlock); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 135 | if (trace_segment != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 136 | sg_set_trace(trace_segment); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 137 | if (trace_semaphore != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 138 | semaphore_set_trace(trace_semaphore); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 139 | if (trace_suppression != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 140 | suppression_set_trace(trace_suppression); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 141 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 142 | return True; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | static void drd_print_usage(void) |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 146 | { |
| 147 | VG_(printf)( |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 148 | " --check-stack-var=yes|no Whether or not to report data races on\n" |
| 149 | " stack variables [no].\n" |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 150 | " --segment-merging=yes|no Controls segment merging [yes].\n" |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 151 | " Segment merging is an algorithm to limit memory usage of the\n" |
| 152 | " data race detection algorithm. Disabling segment merging may\n" |
| 153 | " improve the accuracy of the so-called 'other segments' displayed\n" |
| 154 | " in race reports but can also trigger an out of memory error.\n" |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 155 | " --show-confl-seg=yes|no Show conflicting segments in race reports [yes].\n" |
| 156 | " --show-stack-usage=yes|no Print stack usage at thread exit time [no].\n" |
| 157 | " --var-info=yes|no Display the names of global, static and\n" |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 158 | " stack variables when a race is reported on such a variable. This\n" |
| 159 | " information is by default not displayed since for big programs\n" |
| 160 | " reading in all debug information for all variables at once may\n" |
| 161 | " cause an out of memory error [no].\n" |
| 162 | "\n" |
bart | 2cb48d6 | 2008-04-01 16:57:42 +0000 | [diff] [blame] | 163 | " exp-drd options for monitoring process behavior:\n" |
bart | 952e1a0 | 2008-04-06 13:06:36 +0000 | [diff] [blame] | 164 | " --trace-addr=<address> Trace all load and store activity for the.\n" |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 165 | " specified address [off].\n" |
| 166 | " --trace-barrier=yes|no Trace all barrier activity [no].\n" |
| 167 | " --trace-cond=yes|no Trace all condition variable activity [no].\n" |
| 168 | " --trace-fork-join=yes|no Trace all thread fork/join activity [no].\n" |
| 169 | " --trace-mutex=yes|no Trace all mutex activity [no].\n" |
| 170 | " --trace-rwlock=yes|no Trace all reader-writer lock activity[no].\n" |
| 171 | " --trace-segment=yes|no Trace segment actions [no].\n" |
| 172 | " --trace-semaphore=yes|no Trace all semaphore activity [no].\n" |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 173 | ); |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 174 | VG_(replacement_malloc_print_usage)(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | static void drd_print_debug_usage(void) |
| 178 | { |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 179 | VG_(printf)( |
| 180 | " --drd-stats=yes|no Print statistics about DRD activity [no].\n" |
| 181 | " --trace-clientobj=yes|no Trace all client object activity [no].\n" |
| 182 | " --trace-csw=yes|no Trace all scheduler context switches [no].\n" |
| 183 | " --trace-danger-set=yes|no Trace all danger set updates [no].\n" |
| 184 | " --trace-suppr=yes|no Trace all address suppression actions [no].\n" |
| 185 | ); |
| 186 | VG_(replacement_malloc_print_debug_usage)(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | |
| 190 | // |
| 191 | // Implements the thread-related core callbacks. |
| 192 | // |
| 193 | |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 194 | static void drd_trace_mem_access(const Addr addr, const SizeT size, |
| 195 | const BmAccessTypeT access_type) |
| 196 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 197 | char vc[80]; |
| 198 | vc_snprint(vc, sizeof(vc), thread_get_vc(thread_get_running_tid())); |
| 199 | VG_(message)(Vg_UserMsg, |
bart | 354009c | 2008-03-16 10:42:33 +0000 | [diff] [blame] | 200 | "%s 0x%lx size %ld (vg %d / drd %d / vc %s)", |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 201 | access_type == eLoad |
| 202 | ? "load " |
| 203 | : access_type == eStore |
| 204 | ? "store" |
| 205 | : access_type == eStart |
| 206 | ? "start" |
| 207 | : access_type == eEnd |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 208 | ? "end " |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 209 | : "????", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 210 | addr, |
| 211 | size, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 212 | VG_(get_running_tid)(), |
| 213 | thread_get_running_tid(), |
| 214 | vc); |
| 215 | VG_(get_and_pp_StackTrace)(VG_(get_running_tid)(), |
| 216 | VG_(clo_backtrace_size)); |
| 217 | tl_assert(DrdThreadIdToVgThreadId(thread_get_running_tid()) |
| 218 | == VG_(get_running_tid)()); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | static void drd_report_race(const Addr addr, const SizeT size, |
| 222 | const BmAccessTypeT access_type) |
| 223 | { |
bart | 49c3a11 | 2008-03-15 10:28:36 +0000 | [diff] [blame] | 224 | DataRaceErrInfo drei; |
| 225 | |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 226 | if (drd_is_suppressed(addr, addr + size)) |
| 227 | return; |
| 228 | |
bart | 354009c | 2008-03-16 10:42:33 +0000 | [diff] [blame] | 229 | drei.tid = thread_get_running_tid(); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 230 | drei.addr = addr; |
| 231 | drei.size = size; |
| 232 | drei.access_type = access_type; |
| 233 | VG_(maybe_record_error)(VG_(get_running_tid)(), |
| 234 | DataRaceErr, |
| 235 | VG_(get_IP)(VG_(get_running_tid)()), |
| 236 | "Conflicting accesses", |
| 237 | &drei); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 238 | } |
| 239 | |
| 240 | static VG_REGPARM(2) void drd_trace_load(Addr addr, SizeT size) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 241 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 242 | Segment* sg; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 243 | |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 244 | #if 0 |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 245 | /* The assert below has been commented out because of performance reasons.*/ |
| 246 | tl_assert(thread_get_running_tid() |
| 247 | == VgThreadIdToDrdThreadId(VG_(get_running_tid()))); |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 248 | #endif |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 249 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 250 | if (! running_thread_is_recording()) |
| 251 | return; |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 252 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 253 | if (range_any_is_traced(addr, size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 254 | { |
| 255 | drd_trace_mem_access(addr, size, eLoad); |
| 256 | } |
| 257 | sg = running_thread_get_segment(); |
| 258 | bm_access_range_load(sg->bm, addr, addr + size); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 259 | if (bm_load_has_conflict_with(thread_get_danger_set(), addr, addr + size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 260 | { |
| 261 | drd_report_race(addr, size, eLoad); |
| 262 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | static VG_REGPARM(1) void drd_trace_load_1(Addr addr) |
| 266 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 267 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 268 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 269 | if (! running_thread_is_recording()) |
| 270 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 271 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 272 | if (range_any_is_traced(addr, 1)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 273 | { |
| 274 | drd_trace_mem_access(addr, 1, eLoad); |
| 275 | } |
| 276 | sg = running_thread_get_segment(); |
| 277 | bm_access_load_1(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 278 | if (bm_load_1_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 279 | { |
| 280 | drd_report_race(addr, 1, eLoad); |
| 281 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | static VG_REGPARM(1) void drd_trace_load_2(Addr addr) |
| 285 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 286 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 287 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 288 | if (! running_thread_is_recording()) |
| 289 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 290 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 291 | if (range_any_is_traced(addr, 2)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 292 | { |
| 293 | drd_trace_mem_access(addr, 2, eLoad); |
| 294 | } |
| 295 | sg = running_thread_get_segment(); |
| 296 | bm_access_load_2(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 297 | if (bm_load_2_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 298 | { |
| 299 | drd_report_race(addr, 2, eLoad); |
| 300 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 301 | } |
| 302 | |
| 303 | static VG_REGPARM(1) void drd_trace_load_4(Addr addr) |
| 304 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 305 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 306 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 307 | if (! running_thread_is_recording()) |
| 308 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 309 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 310 | if (range_any_is_traced(addr, 4)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 311 | { |
| 312 | drd_trace_mem_access(addr, 4, eLoad); |
| 313 | } |
| 314 | sg = running_thread_get_segment(); |
| 315 | bm_access_load_4(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 316 | if (bm_load_4_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 317 | { |
| 318 | drd_report_race(addr, 4, eLoad); |
| 319 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | static VG_REGPARM(1) void drd_trace_load_8(Addr addr) |
| 323 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 324 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 325 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 326 | if (! running_thread_is_recording()) |
| 327 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 328 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 329 | if (range_any_is_traced(addr, 8)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 330 | { |
| 331 | drd_trace_mem_access(addr, 8, eLoad); |
| 332 | } |
| 333 | sg = running_thread_get_segment(); |
| 334 | bm_access_load_8(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 335 | if (bm_load_8_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 336 | { |
| 337 | drd_report_race(addr, 8, eLoad); |
| 338 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 339 | } |
| 340 | |
| 341 | static |
| 342 | VG_REGPARM(2) void drd_trace_store(Addr addr, SizeT size) |
| 343 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 344 | Segment* sg; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 345 | |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 346 | #if 0 |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 347 | /* The assert below has been commented out because of performance reasons.*/ |
| 348 | tl_assert(thread_get_running_tid() |
| 349 | == VgThreadIdToDrdThreadId(VG_(get_running_tid()))); |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 350 | #endif |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 351 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 352 | if (! running_thread_is_recording()) |
| 353 | return; |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 354 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 355 | if (range_any_is_traced(addr, size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 356 | { |
| 357 | drd_trace_mem_access(addr, size, eStore); |
| 358 | } |
| 359 | sg = running_thread_get_segment(); |
| 360 | bm_access_range_store(sg->bm, addr, addr + size); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 361 | if (bm_store_has_conflict_with(thread_get_danger_set(), addr, addr + size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 362 | { |
| 363 | drd_report_race(addr, size, eStore); |
| 364 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 365 | } |
| 366 | |
| 367 | static VG_REGPARM(1) void drd_trace_store_1(Addr addr) |
| 368 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 369 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 370 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 371 | if (! running_thread_is_recording()) |
| 372 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 373 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 374 | if (range_any_is_traced(addr, 1)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 375 | { |
| 376 | drd_trace_mem_access(addr, 1, eStore); |
| 377 | } |
| 378 | sg = running_thread_get_segment(); |
| 379 | bm_access_store_1(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 380 | if (bm_store_1_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 381 | { |
| 382 | drd_report_race(addr, 1, eStore); |
| 383 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 384 | } |
| 385 | |
| 386 | static VG_REGPARM(1) void drd_trace_store_2(Addr addr) |
| 387 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 388 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 389 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 390 | if (! running_thread_is_recording()) |
| 391 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 392 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 393 | if (range_any_is_traced(addr, 2)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 394 | { |
| 395 | drd_trace_mem_access(addr, 2, eStore); |
| 396 | } |
| 397 | sg = running_thread_get_segment(); |
| 398 | bm_access_store_2(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 399 | if (bm_store_2_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 400 | { |
| 401 | drd_report_race(addr, 2, eStore); |
| 402 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 403 | } |
| 404 | |
| 405 | static VG_REGPARM(1) void drd_trace_store_4(Addr addr) |
| 406 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 407 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 408 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 409 | if (! running_thread_is_recording()) |
| 410 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 411 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 412 | if (range_any_is_traced(addr, 4)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 413 | { |
| 414 | drd_trace_mem_access(addr, 4, eStore); |
| 415 | } |
| 416 | sg = running_thread_get_segment(); |
| 417 | bm_access_store_4(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 418 | if (bm_store_4_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 419 | { |
| 420 | drd_report_race(addr, 4, eStore); |
| 421 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 422 | } |
| 423 | |
| 424 | static VG_REGPARM(1) void drd_trace_store_8(Addr addr) |
| 425 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 426 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 427 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 428 | if (! running_thread_is_recording()) |
| 429 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 430 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 431 | if (range_any_is_traced(addr, 8)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 432 | { |
| 433 | drd_trace_mem_access(addr, 8, eStore); |
| 434 | } |
| 435 | sg = running_thread_get_segment(); |
| 436 | bm_access_store_8(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 437 | if (bm_store_8_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 438 | { |
| 439 | drd_report_race(addr, 8, eStore); |
| 440 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | static void drd_pre_mem_read(const CorePart part, |
| 444 | const ThreadId tid, |
| 445 | Char* const s, |
| 446 | const Addr a, |
| 447 | const SizeT size) |
| 448 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 449 | if (size > 0) |
| 450 | { |
| 451 | drd_trace_load(a, size); |
| 452 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 453 | } |
| 454 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 455 | static void drd_pre_mem_read_asciiz(const CorePart part, |
| 456 | const ThreadId tid, |
| 457 | Char* const s, |
| 458 | const Addr a) |
| 459 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 460 | const char* p = (void*)a; |
| 461 | SizeT size = 0; |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 462 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 463 | /* Note: the expression '*p' reads client memory and may crash if the */ |
| 464 | /* client provided an invalid pointer ! */ |
| 465 | while (*p) |
| 466 | { |
| 467 | p++; |
| 468 | size++; |
| 469 | } |
| 470 | // To do: find out what a reasonable upper limit on 'size' is. |
| 471 | tl_assert(size < 4096); |
| 472 | if (size > 0) |
| 473 | { |
| 474 | drd_trace_load(a, size); |
| 475 | } |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 476 | } |
| 477 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 478 | static void drd_post_mem_write(const CorePart part, |
| 479 | const ThreadId tid, |
| 480 | const Addr a, |
| 481 | const SizeT size) |
| 482 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 483 | thread_set_vg_running_tid(VG_(get_running_tid)()); |
| 484 | if (size > 0) |
| 485 | { |
| 486 | drd_trace_store(a, size); |
| 487 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 488 | } |
| 489 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 490 | static void drd_start_using_mem(const Addr a1, const SizeT len) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 491 | { |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 492 | tl_assert(a1 < a1 + len); |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 493 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 494 | if (range_any_is_traced(a1, len)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 495 | { |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 496 | drd_trace_mem_access(a1, len, eStart); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 497 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 498 | } |
| 499 | |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 500 | static void drd_start_using_mem_w_ecu(const Addr a1, |
| 501 | const SizeT len, |
| 502 | UInt ec_uniq) |
| 503 | { |
| 504 | drd_start_using_mem(a1, len); |
| 505 | } |
| 506 | |
| 507 | static void drd_start_using_mem_w_tid(const Addr a1, |
| 508 | const SizeT len, |
| 509 | ThreadId tid) |
| 510 | { |
| 511 | drd_start_using_mem(a1, len); |
| 512 | } |
| 513 | |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 514 | static __inline__ |
| 515 | void drd_stop_using_mem(const Addr a1, const SizeT len, |
| 516 | const Bool is_stack_mem) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 517 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 518 | const Addr a2 = a1 + len; |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 519 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 520 | tl_assert(a1 < a2); |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 521 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 522 | if (range_any_is_traced(a1, len)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 523 | { |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 524 | drd_trace_mem_access(a1, len, eEnd); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 525 | } |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 526 | if (! is_stack_mem || s_drd_check_stack_var) |
| 527 | { |
| 528 | thread_stop_using_mem(a1, a2); |
| 529 | clientobj_stop_using_mem(a1, a2); |
| 530 | drd_suppression_stop_using_mem(a1, a2); |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | static __inline__ |
| 535 | void drd_stop_using_nonstack_mem(const Addr a1, const SizeT len) |
| 536 | { |
| 537 | drd_stop_using_mem(a1, len, False); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 538 | } |
| 539 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 540 | static |
| 541 | void drd_start_using_mem_w_perms(const Addr a, const SizeT len, |
| 542 | const Bool rr, const Bool ww, const Bool xx) |
| 543 | { |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 544 | thread_set_vg_running_tid(VG_(get_running_tid)()); |
| 545 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 546 | drd_start_using_mem(a, len); |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 547 | } |
| 548 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 549 | /* Called by the core when the stack of a thread grows, to indicate that */ |
| 550 | /* the addresses in range [ a, a + len [ may now be used by the client. */ |
| 551 | /* Assumption: stacks grow downward. */ |
| 552 | static void drd_start_using_mem_stack(const Addr a, const SizeT len) |
| 553 | { |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 554 | thread_set_stack_min(thread_get_running_tid(), a - VG_STACK_REDZONE_SZB); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 555 | drd_start_using_mem(a - VG_STACK_REDZONE_SZB, |
| 556 | len + VG_STACK_REDZONE_SZB); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | /* Called by the core when the stack of a thread shrinks, to indicate that */ |
| 560 | /* the addresses [ a, a + len [ are no longer accessible for the client. */ |
| 561 | /* Assumption: stacks grow downward. */ |
| 562 | static void drd_stop_using_mem_stack(const Addr a, const SizeT len) |
| 563 | { |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 564 | thread_set_stack_min(thread_get_running_tid(), |
| 565 | a + len - VG_STACK_REDZONE_SZB); |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 566 | drd_stop_using_mem(a - VG_STACK_REDZONE_SZB, len + VG_STACK_REDZONE_SZB, |
| 567 | True); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 568 | } |
| 569 | |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 570 | static void drd_start_using_mem_stack_signal( |
| 571 | const Addr a, const SizeT len, |
| 572 | ThreadId tid_for_whom_the_signal_frame_is_being_constructed) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 573 | { |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 574 | thread_set_vg_running_tid(VG_(get_running_tid)()); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 575 | drd_start_using_mem(a, len); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 576 | } |
| 577 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 578 | static void drd_stop_using_mem_stack_signal(Addr a, SizeT len) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 579 | { |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 580 | drd_stop_using_mem(a, len, True); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 581 | } |
| 582 | |
| 583 | static |
| 584 | void drd_pre_thread_create(const ThreadId creator, const ThreadId created) |
| 585 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 586 | const DrdThreadId drd_creator = VgThreadIdToDrdThreadId(creator); |
| 587 | tl_assert(created != VG_INVALID_THREADID); |
| 588 | thread_pre_create(drd_creator, created); |
| 589 | if (IsValidDrdThreadId(drd_creator)) |
| 590 | { |
| 591 | thread_new_segment(drd_creator); |
| 592 | } |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 593 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 594 | { |
| 595 | VG_(message)(Vg_DebugMsg, |
| 596 | "drd_pre_thread_create creator = %d/%d, created = %d", |
| 597 | creator, drd_creator, created); |
| 598 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 599 | } |
| 600 | |
| 601 | /* Called by Valgrind's core before any loads or stores are performed on */ |
| 602 | /* the context of thread "created". At startup, this function is called */ |
| 603 | /* with arguments (0,1). */ |
| 604 | static |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 605 | void drd_post_thread_create(const ThreadId vg_created) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 606 | { |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 607 | DrdThreadId drd_created; |
| 608 | |
| 609 | tl_assert(vg_created != VG_INVALID_THREADID); |
| 610 | |
| 611 | drd_created = thread_post_create(vg_created); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 612 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 613 | { |
| 614 | VG_(message)(Vg_DebugMsg, |
| 615 | "drd_post_thread_create created = %d/%d", |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 616 | vg_created, drd_created); |
| 617 | } |
| 618 | if (! s_drd_check_stack_var) |
| 619 | { |
| 620 | drd_start_suppression(thread_get_stack_max(drd_created) |
| 621 | - thread_get_stack_size(drd_created), |
| 622 | thread_get_stack_max(drd_created), |
| 623 | "stack"); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 624 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 625 | } |
| 626 | |
| 627 | /* Process VG_USERREQ__POST_THREAD_JOIN. This client request is invoked just */ |
| 628 | /* after thread drd_joiner joined thread drd_joinee. */ |
| 629 | void drd_post_thread_join(DrdThreadId drd_joiner, DrdThreadId drd_joinee) |
| 630 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 631 | tl_assert(IsValidDrdThreadId(drd_joiner)); |
| 632 | tl_assert(IsValidDrdThreadId(drd_joinee)); |
| 633 | thread_new_segment(drd_joinee); |
| 634 | thread_combine_vc(drd_joiner, drd_joinee); |
| 635 | thread_new_segment(drd_joiner); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 636 | |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 637 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 638 | { |
bart | fdd8d4e | 2008-04-01 18:38:29 +0000 | [diff] [blame] | 639 | const ThreadId joiner = DrdThreadIdToVgThreadId(drd_joiner); |
| 640 | const ThreadId joinee = DrdThreadIdToVgThreadId(drd_joinee); |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame] | 641 | const unsigned msg_size = 256; |
| 642 | char* msg; |
| 643 | |
| 644 | msg = VG_(malloc)(msg_size); |
bart | fdd8d4e | 2008-04-01 18:38:29 +0000 | [diff] [blame] | 645 | tl_assert(msg); |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame] | 646 | VG_(snprintf)(msg, msg_size, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 647 | "drd_post_thread_join joiner = %d/%d, joinee = %d/%d", |
| 648 | joiner, drd_joiner, joinee, drd_joinee); |
| 649 | if (joiner) |
| 650 | { |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame] | 651 | VG_(snprintf)(msg + VG_(strlen)(msg), msg_size - VG_(strlen)(msg), |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 652 | ", new vc: "); |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame] | 653 | vc_snprint(msg + VG_(strlen)(msg), msg_size - VG_(strlen)(msg), |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 654 | thread_get_vc(drd_joiner)); |
| 655 | } |
| 656 | VG_(message)(Vg_DebugMsg, msg); |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame] | 657 | VG_(free)(msg); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 658 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 659 | |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 660 | if (! s_drd_check_stack_var) |
| 661 | { |
| 662 | drd_finish_suppression(thread_get_stack_max(drd_joinee) |
| 663 | - thread_get_stack_size(drd_joinee), |
| 664 | thread_get_stack_max(drd_joinee)); |
| 665 | } |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 666 | thread_delete(drd_joinee); |
| 667 | mutex_thread_delete(drd_joinee); |
| 668 | cond_thread_delete(drd_joinee); |
| 669 | semaphore_thread_delete(drd_joinee); |
| 670 | barrier_thread_delete(drd_joinee); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 671 | } |
| 672 | |
bart | 5bd9f2d | 2008-03-03 20:31:58 +0000 | [diff] [blame] | 673 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 674 | /* Called after a thread has performed its last memory access. */ |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 675 | static void drd_thread_finished(ThreadId vg_tid) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 676 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 677 | DrdThreadId drd_tid; |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 678 | |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 679 | tl_assert(VG_(get_running_tid)() == vg_tid); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 680 | |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 681 | drd_tid = VgThreadIdToDrdThreadId(vg_tid); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 682 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 683 | { |
| 684 | VG_(message)(Vg_DebugMsg, |
| 685 | "drd_thread_finished tid = %d/%d%s", |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 686 | vg_tid, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 687 | drd_tid, |
| 688 | thread_get_joinable(drd_tid) |
| 689 | ? "" |
| 690 | : " (which is a detached thread)"); |
bart | 912ab8d | 2008-03-29 09:31:43 +0000 | [diff] [blame] | 691 | } |
| 692 | if (s_show_stack_usage) |
| 693 | { |
| 694 | const SizeT stack_size = thread_get_stack_size(drd_tid); |
| 695 | const SizeT used_stack |
| 696 | = thread_get_stack_max(drd_tid) - thread_get_stack_min_min(drd_tid); |
| 697 | VG_(message)(Vg_UserMsg, |
| 698 | "thread %d/%d%s finished and used %ld bytes out of %ld" |
| 699 | " on its stack. Margin: %ld bytes.", |
| 700 | vg_tid, |
| 701 | drd_tid, |
| 702 | thread_get_joinable(drd_tid) |
| 703 | ? "" |
| 704 | : " (which is a detached thread)", |
| 705 | used_stack, |
| 706 | stack_size, |
| 707 | stack_size - used_stack); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 708 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 709 | } |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 710 | drd_stop_using_mem(thread_get_stack_min(drd_tid), |
| 711 | thread_get_stack_max(drd_tid) |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 712 | - thread_get_stack_min(drd_tid), |
| 713 | True); |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 714 | thread_stop_recording(drd_tid); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 715 | thread_finished(drd_tid); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 716 | } |
| 717 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 718 | void drd_pre_mutex_init(const Addr mutex, const MutexT mutex_type) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 719 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 720 | mutex_init(mutex, mutex_type); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 721 | } |
| 722 | |
sewardj | 347eeba | 2008-01-21 14:19:07 +0000 | [diff] [blame] | 723 | void drd_post_mutex_destroy(const Addr mutex, const MutexT mutex_type) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 724 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 725 | mutex_post_destroy(mutex); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 726 | } |
| 727 | |
bart | 2e3a3c1 | 2008-03-24 08:33:47 +0000 | [diff] [blame] | 728 | void drd_pre_mutex_lock(const Addr mutex, const MutexT mutex_type, |
| 729 | const Bool trylock) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 730 | { |
bart | 2e3a3c1 | 2008-03-24 08:33:47 +0000 | [diff] [blame] | 731 | mutex_pre_lock(mutex, mutex_type, trylock); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 732 | } |
| 733 | |
bart | 0034464 | 2008-03-01 15:27:41 +0000 | [diff] [blame] | 734 | void drd_post_mutex_lock(const Addr mutex, const Bool took_lock) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 735 | { |
bart | 4a975e1 | 2008-03-30 13:28:33 +0000 | [diff] [blame] | 736 | mutex_post_lock(mutex, took_lock, False); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 737 | } |
| 738 | |
bart | 0034464 | 2008-03-01 15:27:41 +0000 | [diff] [blame] | 739 | void drd_pre_mutex_unlock(const Addr mutex, const MutexT mutex_type) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 740 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 741 | mutex_unlock(mutex, mutex_type); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 742 | } |
| 743 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 744 | void drd_pre_cond_init(Addr cond) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 745 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 746 | cond_pre_init(cond); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 747 | } |
| 748 | |
bart | 72b751c | 2008-03-01 13:44:24 +0000 | [diff] [blame] | 749 | void drd_post_cond_destroy(Addr cond) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 750 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 751 | cond_post_destroy(cond); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 752 | } |
| 753 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 754 | void drd_semaphore_init(const Addr semaphore, |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 755 | const Word pshared, const Word value) |
| 756 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 757 | semaphore_init(semaphore, pshared, value); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 758 | } |
| 759 | |
| 760 | void drd_semaphore_destroy(const Addr semaphore) |
| 761 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 762 | semaphore_destroy(semaphore); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 763 | } |
| 764 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 765 | void drd_semaphore_pre_wait(const DrdThreadId tid, const Addr semaphore) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 766 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 767 | semaphore_pre_wait(semaphore); |
bart | 28230a3 | 2008-02-29 17:27:03 +0000 | [diff] [blame] | 768 | } |
| 769 | |
| 770 | void drd_semaphore_post_wait(const DrdThreadId tid, const Addr semaphore, |
| 771 | const Bool waited) |
| 772 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 773 | semaphore_post_wait(tid, semaphore, waited); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 774 | } |
| 775 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 776 | void drd_semaphore_pre_post(const DrdThreadId tid, const Addr semaphore) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 777 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 778 | semaphore_pre_post(tid, semaphore); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | void drd_semaphore_post_post(const DrdThreadId tid, const Addr semaphore, |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 782 | const Bool waited) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 783 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 784 | semaphore_post_post(tid, semaphore, waited); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 785 | } |
| 786 | |
| 787 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 788 | void drd_barrier_init(const Addr barrier, |
| 789 | const BarrierT barrier_type, const Word count, |
| 790 | const Bool reinitialization) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 791 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 792 | barrier_init(barrier, barrier_type, count, reinitialization); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 793 | } |
| 794 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 795 | void drd_barrier_destroy(const Addr barrier, const BarrierT barrier_type) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 796 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 797 | barrier_destroy(barrier, barrier_type); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 798 | } |
| 799 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 800 | void drd_barrier_pre_wait(const DrdThreadId tid, const Addr barrier, |
| 801 | const BarrierT barrier_type) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 802 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 803 | barrier_pre_wait(tid, barrier, barrier_type); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | void drd_barrier_post_wait(const DrdThreadId tid, const Addr barrier, |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 807 | const BarrierT barrier_type, const Bool waited) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 808 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 809 | barrier_post_wait(tid, barrier, barrier_type, waited); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 810 | } |
| 811 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 812 | |
| 813 | // |
| 814 | // Implementation of the tool interface. |
| 815 | // |
| 816 | |
| 817 | static |
| 818 | void drd_post_clo_init(void) |
sewardj | dcbb8d3 | 2007-11-26 21:34:30 +0000 | [diff] [blame] | 819 | { |
| 820 | # if defined(VGP_x86_linux) || defined(VGP_amd64_linux) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 821 | /* fine */ |
sewardj | dcbb8d3 | 2007-11-26 21:34:30 +0000 | [diff] [blame] | 822 | # else |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 823 | VG_(printf)("\nWARNING: DRD has only been tested on x86-linux and amd64-linux.\n\n"); |
sewardj | dcbb8d3 | 2007-11-26 21:34:30 +0000 | [diff] [blame] | 824 | # endif |
bart | 95761b5 | 2008-03-29 08:34:03 +0000 | [diff] [blame] | 825 | |
| 826 | if (s_drd_var_info) |
| 827 | { |
| 828 | VG_(needs_var_info)(); |
| 829 | } |
sewardj | dcbb8d3 | 2007-11-26 21:34:30 +0000 | [diff] [blame] | 830 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 831 | |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 832 | static void instrument_load(IRSB* const bb, |
| 833 | IRExpr* const addr_expr, |
| 834 | const HWord size) |
| 835 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 836 | IRExpr* size_expr; |
| 837 | IRExpr** argv; |
| 838 | IRDirty* di; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 839 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 840 | switch (size) |
| 841 | { |
| 842 | case 1: |
| 843 | argv = mkIRExprVec_1(addr_expr); |
| 844 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 845 | "drd_trace_load_1", |
| 846 | VG_(fnptr_to_fnentry)(drd_trace_load_1), |
| 847 | argv); |
| 848 | break; |
| 849 | case 2: |
| 850 | argv = mkIRExprVec_1(addr_expr); |
| 851 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 852 | "drd_trace_load_2", |
| 853 | VG_(fnptr_to_fnentry)(drd_trace_load_2), |
| 854 | argv); |
| 855 | break; |
| 856 | case 4: |
| 857 | argv = mkIRExprVec_1(addr_expr); |
| 858 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 859 | "drd_trace_load_4", |
| 860 | VG_(fnptr_to_fnentry)(drd_trace_load_4), |
| 861 | argv); |
| 862 | break; |
| 863 | case 8: |
| 864 | argv = mkIRExprVec_1(addr_expr); |
| 865 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 866 | "drd_trace_load_8", |
| 867 | VG_(fnptr_to_fnentry)(drd_trace_load_8), |
| 868 | argv); |
| 869 | break; |
| 870 | default: |
| 871 | size_expr = mkIRExpr_HWord(size); |
| 872 | argv = mkIRExprVec_2(addr_expr, size_expr); |
| 873 | di = unsafeIRDirty_0_N(/*regparms*/2, |
| 874 | "drd_trace_load", |
| 875 | VG_(fnptr_to_fnentry)(drd_trace_load), |
| 876 | argv); |
| 877 | break; |
| 878 | } |
| 879 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 880 | } |
| 881 | |
| 882 | static void instrument_store(IRSB* const bb, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 883 | IRExpr* const addr_expr, |
| 884 | const HWord size) |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 885 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 886 | IRExpr* size_expr; |
| 887 | IRExpr** argv; |
| 888 | IRDirty* di; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 889 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 890 | switch (size) |
| 891 | { |
| 892 | case 1: |
| 893 | argv = mkIRExprVec_1(addr_expr); |
| 894 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 895 | "drd_trace_store_1", |
| 896 | VG_(fnptr_to_fnentry)(drd_trace_store_1), |
| 897 | argv); |
| 898 | break; |
| 899 | case 2: |
| 900 | argv = mkIRExprVec_1(addr_expr); |
| 901 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 902 | "drd_trace_store_2", |
| 903 | VG_(fnptr_to_fnentry)(drd_trace_store_2), |
| 904 | argv); |
| 905 | break; |
| 906 | case 4: |
| 907 | argv = mkIRExprVec_1(addr_expr); |
| 908 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 909 | "drd_trace_store_4", |
| 910 | VG_(fnptr_to_fnentry)(drd_trace_store_4), |
| 911 | argv); |
| 912 | break; |
| 913 | case 8: |
| 914 | argv = mkIRExprVec_1(addr_expr); |
| 915 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 916 | "drd_trace_store_8", |
| 917 | VG_(fnptr_to_fnentry)(drd_trace_store_8), |
| 918 | argv); |
| 919 | break; |
| 920 | default: |
| 921 | size_expr = mkIRExpr_HWord(size); |
| 922 | argv = mkIRExprVec_2(addr_expr, size_expr); |
| 923 | di = unsafeIRDirty_0_N(/*regparms*/2, |
| 924 | "drd_trace_store", |
| 925 | VG_(fnptr_to_fnentry)(drd_trace_store), |
| 926 | argv); |
| 927 | break; |
| 928 | } |
| 929 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 930 | } |
| 931 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 932 | static |
| 933 | IRSB* drd_instrument(VgCallbackClosure* const closure, |
sewardj | 347eeba | 2008-01-21 14:19:07 +0000 | [diff] [blame] | 934 | IRSB* const bb_in, |
| 935 | VexGuestLayout* const layout, |
| 936 | VexGuestExtents* const vge, |
| 937 | IRType const gWordTy, |
| 938 | IRType const hWordTy) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 939 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 940 | IRDirty* di; |
| 941 | Int i; |
| 942 | IRSB* bb; |
| 943 | IRExpr** argv; |
| 944 | Bool instrument = True; |
| 945 | Bool bus_locked = False; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 946 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 947 | /* Set up BB */ |
| 948 | bb = emptyIRSB(); |
| 949 | bb->tyenv = deepCopyIRTypeEnv(bb_in->tyenv); |
| 950 | bb->next = deepCopyIRExpr(bb_in->next); |
| 951 | bb->jumpkind = bb_in->jumpkind; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 952 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 953 | for (i = 0; i < bb_in->stmts_used; i++) |
| 954 | { |
| 955 | IRStmt* const st = bb_in->stmts[i]; |
| 956 | tl_assert(st); |
| 957 | if (st->tag == Ist_NoOp) |
| 958 | continue; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 959 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 960 | switch (st->tag) |
| 961 | { |
| 962 | case Ist_IMark: |
| 963 | instrument = VG_(seginfo_sect_kind)(NULL, 0, st->Ist.IMark.addr) |
| 964 | != Vg_SectPLT; |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 965 | addStmtToIRSB(bb, st); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 966 | break; |
| 967 | |
| 968 | case Ist_MBE: |
| 969 | switch (st->Ist.MBE.event) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 970 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 971 | case Imbe_Fence: |
| 972 | break; /* not interesting */ |
| 973 | case Imbe_BusLock: |
| 974 | tl_assert(! bus_locked); |
| 975 | bus_locked = True; |
| 976 | break; |
| 977 | case Imbe_BusUnlock: |
| 978 | tl_assert(bus_locked); |
| 979 | bus_locked = False; |
| 980 | break; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 981 | default: |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 982 | tl_assert(0); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 983 | } |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 984 | addStmtToIRSB(bb, st); |
| 985 | break; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 986 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 987 | case Ist_Store: |
| 988 | if (instrument && ! bus_locked) |
| 989 | { |
| 990 | instrument_store(bb, |
| 991 | st->Ist.Store.addr, |
| 992 | sizeofIRType(typeOfIRExpr(bb->tyenv, |
| 993 | st->Ist.Store.data))); |
| 994 | } |
| 995 | addStmtToIRSB(bb, st); |
| 996 | break; |
bart | a47b351 | 2008-03-07 17:22:26 +0000 | [diff] [blame] | 997 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 998 | case Ist_WrTmp: |
| 999 | if (instrument) |
| 1000 | { |
| 1001 | const IRExpr* const data = st->Ist.WrTmp.data; |
| 1002 | if (data->tag == Iex_Load) |
| 1003 | { |
| 1004 | instrument_load(bb, |
| 1005 | data->Iex.Load.addr, |
| 1006 | sizeofIRType(data->Iex.Load.ty)); |
| 1007 | } |
| 1008 | } |
| 1009 | addStmtToIRSB(bb, st); |
| 1010 | break; |
| 1011 | |
| 1012 | case Ist_Dirty: |
| 1013 | if (instrument) |
| 1014 | { |
| 1015 | IRDirty* d = st->Ist.Dirty.details; |
| 1016 | IREffect const mFx = d->mFx; |
| 1017 | switch (mFx) { |
| 1018 | case Ifx_None: |
| 1019 | break; |
| 1020 | case Ifx_Read: |
| 1021 | case Ifx_Write: |
| 1022 | case Ifx_Modify: |
| 1023 | tl_assert(d->mAddr); |
| 1024 | tl_assert(d->mSize > 0); |
| 1025 | argv = mkIRExprVec_2(d->mAddr, mkIRExpr_HWord(d->mSize)); |
| 1026 | if (mFx == Ifx_Read || mFx == Ifx_Modify) { |
| 1027 | di = unsafeIRDirty_0_N( |
| 1028 | /*regparms*/2, |
| 1029 | "drd_trace_load", |
| 1030 | VG_(fnptr_to_fnentry)(drd_trace_load), |
| 1031 | argv); |
| 1032 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
| 1033 | } |
| 1034 | if ((mFx == Ifx_Write || mFx == Ifx_Modify) |
| 1035 | && ! bus_locked) |
| 1036 | { |
| 1037 | di = unsafeIRDirty_0_N( |
| 1038 | /*regparms*/2, |
| 1039 | "drd_trace_store", |
| 1040 | VG_(fnptr_to_fnentry)(drd_trace_store), |
| 1041 | argv); |
| 1042 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
| 1043 | } |
| 1044 | break; |
| 1045 | default: |
| 1046 | tl_assert(0); |
| 1047 | } |
| 1048 | } |
| 1049 | addStmtToIRSB(bb, st); |
| 1050 | break; |
| 1051 | |
| 1052 | default: |
| 1053 | addStmtToIRSB(bb, st); |
| 1054 | break; |
| 1055 | } |
| 1056 | } |
| 1057 | |
| 1058 | tl_assert(! bus_locked); |
| 1059 | |
| 1060 | return bb; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1061 | } |
| 1062 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1063 | static void drd_start_client_code(const ThreadId tid, const ULong bbs_done) |
| 1064 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1065 | tl_assert(tid == VG_(get_running_tid)()); |
| 1066 | thread_set_vg_running_tid(tid); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1067 | } |
| 1068 | |
| 1069 | static |
| 1070 | void drd_fini(Int exitcode) |
| 1071 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1072 | // thread_print_all(); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1073 | if (VG_(clo_verbosity) > 1 || s_drd_print_stats) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1074 | { |
bart | e4504dd | 2008-04-06 15:02:58 +0000 | [diff] [blame] | 1075 | ULong update_danger_set_count; |
| 1076 | ULong dsnsc; |
| 1077 | ULong dscvc; |
| 1078 | |
| 1079 | update_danger_set_count |
| 1080 | = thread_get_update_danger_set_count(&dsnsc, &dscvc); |
| 1081 | |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1082 | VG_(message)(Vg_UserMsg, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1083 | " thread: %lld context switches" |
bart | e4504dd | 2008-04-06 15:02:58 +0000 | [diff] [blame] | 1084 | " / %lld updates of the danger set", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1085 | thread_get_context_switch_count(), |
bart | e4504dd | 2008-04-06 15:02:58 +0000 | [diff] [blame] | 1086 | update_danger_set_count); |
| 1087 | VG_(message)(Vg_UserMsg, |
| 1088 | " (%lld new sg + %lld combine vc + %lld csw).", |
| 1089 | dsnsc, |
| 1090 | dscvc, |
| 1091 | update_danger_set_count - dsnsc - dscvc); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1092 | VG_(message)(Vg_UserMsg, |
| 1093 | " segments: created %lld segments, max %lld alive," |
| 1094 | " %lld discard points.", |
bart | 7102f10 | 2008-03-17 17:37:53 +0000 | [diff] [blame] | 1095 | sg_get_created_segments_count(), |
| 1096 | sg_get_max_alive_segments_count(), |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1097 | thread_get_discard_ordered_segments_count()); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1098 | VG_(message)(Vg_UserMsg, |
bart | 6bbefaf | 2008-04-19 15:16:45 +0000 | [diff] [blame] | 1099 | " (%lld m, %lld rw, %lld s, %lld b)", |
| 1100 | get_mutex_segment_creation_count(), |
| 1101 | get_rwlock_segment_creation_count(), |
| 1102 | get_semaphore_segment_creation_count(), |
| 1103 | get_barrier_segment_creation_count()); |
| 1104 | VG_(message)(Vg_UserMsg, |
bart | 952e1a0 | 2008-04-06 13:06:36 +0000 | [diff] [blame] | 1105 | " bitmaps: %lld level 1 / %lld level 2 bitmap refs", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1106 | bm_get_bitmap_creation_count(), |
bart | 952e1a0 | 2008-04-06 13:06:36 +0000 | [diff] [blame] | 1107 | bm_get_bitmap2_node_creation_count()); |
| 1108 | VG_(message)(Vg_UserMsg, |
| 1109 | " and %lld level 2 bitmaps were allocated.", |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1110 | bm_get_bitmap2_creation_count()); |
| 1111 | VG_(message)(Vg_UserMsg, |
| 1112 | " mutex: %lld non-recursive lock/unlock events.", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1113 | get_mutex_lock_count()); |
| 1114 | drd_print_malloc_stats(); |
| 1115 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1116 | } |
| 1117 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1118 | static |
| 1119 | void drd_pre_clo_init(void) |
| 1120 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1121 | // Basic tool stuff. |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1122 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1123 | VG_(details_name) ("exp-drd"); |
| 1124 | VG_(details_version) (NULL); |
| 1125 | VG_(details_description) ("a data race detector"); |
| 1126 | VG_(details_copyright_author)("Copyright (C) 2006-2008, and GNU GPL'd," |
| 1127 | " by Bart Van Assche."); |
| 1128 | VG_(details_bug_reports_to) (VG_BUGS_TO); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1129 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1130 | VG_(basic_tool_funcs) (drd_post_clo_init, |
| 1131 | drd_instrument, |
| 1132 | drd_fini); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1133 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1134 | // Command line stuff. |
| 1135 | VG_(needs_command_line_options)(drd_process_cmd_line_option, |
| 1136 | drd_print_usage, |
| 1137 | drd_print_debug_usage); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1138 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1139 | // Error handling. |
| 1140 | drd_register_error_handlers(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1141 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1142 | // Core event tracking. |
| 1143 | VG_(track_pre_mem_read) (drd_pre_mem_read); |
| 1144 | VG_(track_pre_mem_read_asciiz) (drd_pre_mem_read_asciiz); |
| 1145 | VG_(track_post_mem_write) (drd_post_mem_write); |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 1146 | VG_(track_new_mem_brk) (drd_start_using_mem_w_tid); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1147 | VG_(track_new_mem_mmap) (drd_start_using_mem_w_perms); |
| 1148 | VG_(track_new_mem_stack) (drd_start_using_mem_stack); |
| 1149 | VG_(track_new_mem_stack_signal) (drd_start_using_mem_stack_signal); |
| 1150 | VG_(track_new_mem_startup) (drd_start_using_mem_w_perms); |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 1151 | VG_(track_die_mem_brk) (drd_stop_using_nonstack_mem); |
| 1152 | VG_(track_die_mem_munmap) (drd_stop_using_nonstack_mem); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1153 | VG_(track_die_mem_stack) (drd_stop_using_mem_stack); |
| 1154 | VG_(track_die_mem_stack_signal) (drd_stop_using_mem_stack_signal); |
| 1155 | VG_(track_start_client_code) (drd_start_client_code); |
| 1156 | VG_(track_pre_thread_ll_create) (drd_pre_thread_create); |
| 1157 | VG_(track_pre_thread_first_insn)(drd_post_thread_create); |
| 1158 | VG_(track_pre_thread_ll_exit) (drd_thread_finished); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1159 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1160 | // Other stuff. |
sewardj | 7cf4e6b | 2008-05-01 20:24:26 +0000 | [diff] [blame] | 1161 | drd_register_malloc_wrappers(drd_start_using_mem_w_ecu, |
bart | 0ffa483 | 2008-04-05 12:57:01 +0000 | [diff] [blame] | 1162 | drd_stop_using_nonstack_mem); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1163 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1164 | drd_clientreq_init(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1165 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1166 | drd_suppression_init(); |
bart | 4bb53d8 | 2008-02-28 19:06:34 +0000 | [diff] [blame] | 1167 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1168 | clientobj_init(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1169 | } |
| 1170 | |
| 1171 | |
| 1172 | VG_DETERMINE_INTERFACE_VERSION(drd_pre_clo_init) |