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 | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame^] | 53 | #include "pub_tool_replacemalloc.h" |
bart | 72b751c | 2008-03-01 13:44:24 +0000 | [diff] [blame] | 54 | #include "pub_tool_threadstate.h" // VG_(get_running_tid)() |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 55 | #include "pub_tool_tooliface.h" |
| 56 | |
| 57 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 58 | // Function declarations. |
| 59 | |
| 60 | static void drd_start_client_code(const ThreadId tid, const ULong bbs_done); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 61 | |
| 62 | |
| 63 | // Local variables. |
| 64 | |
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 | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 91 | VG_BOOL_CLO (arg, "--drd-stats", s_drd_print_stats) |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 92 | else VG_BOOL_CLO(arg, "--segment-merging", segment_merging) |
bart | 16d76e5 | 2008-03-18 17:08:08 +0000 | [diff] [blame] | 93 | else VG_BOOL_CLO(arg, "--show-confl-seg", show_confl_seg) |
bart | 912ab8d | 2008-03-29 09:31:43 +0000 | [diff] [blame] | 94 | else VG_BOOL_CLO(arg, "--show-stack-usage", s_show_stack_usage) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 95 | else VG_BOOL_CLO(arg, "--trace-barrier", trace_barrier) |
| 96 | else VG_BOOL_CLO(arg, "--trace-clientobj", trace_clientobj) |
| 97 | else VG_BOOL_CLO(arg, "--trace-cond", trace_cond) |
| 98 | else VG_BOOL_CLO(arg, "--trace-csw", trace_csw) |
| 99 | else VG_BOOL_CLO(arg, "--trace-danger-set", trace_danger_set) |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 100 | else VG_BOOL_CLO(arg, "--trace-fork-join", s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 101 | else VG_BOOL_CLO(arg, "--trace-mutex", trace_mutex) |
| 102 | else VG_BOOL_CLO(arg, "--trace-rwlock", trace_rwlock) |
| 103 | else VG_BOOL_CLO(arg, "--trace-segment", trace_segment) |
| 104 | else VG_BOOL_CLO(arg, "--trace-semaphore", trace_semaphore) |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 105 | else VG_BOOL_CLO(arg, "--trace-suppr", trace_suppression) |
bart | 95761b5 | 2008-03-29 08:34:03 +0000 | [diff] [blame] | 106 | else VG_BOOL_CLO(arg, "--var-info", s_drd_var_info) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 107 | else VG_STR_CLO (arg, "--trace-address", trace_address) |
| 108 | else |
bart | ceded21 | 2008-03-26 17:39:52 +0000 | [diff] [blame] | 109 | return VG_(replacement_malloc_process_cmd_line_option)(arg); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 110 | |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 111 | if (segment_merging != -1) |
| 112 | thread_set_segment_merging(segment_merging); |
| 113 | if (show_confl_seg != -1) |
bart | 16d76e5 | 2008-03-18 17:08:08 +0000 | [diff] [blame] | 114 | set_show_conflicting_segments(show_confl_seg); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 115 | if (trace_address) |
| 116 | { |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 117 | const Addr addr = VG_(strtoll16)(trace_address, 0); |
| 118 | drd_start_tracing_address_range(addr, addr + 1); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 119 | } |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 120 | if (trace_barrier != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 121 | barrier_set_trace(trace_barrier); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 122 | if (trace_clientobj != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 123 | clientobj_set_trace(trace_clientobj); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 124 | if (trace_cond != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 125 | cond_set_trace(trace_cond); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 126 | if (trace_csw != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 127 | thread_trace_context_switches(trace_csw); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 128 | if (trace_danger_set != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 129 | thread_trace_danger_set(trace_danger_set); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 130 | if (trace_mutex != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 131 | mutex_set_trace(trace_mutex); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 132 | if (trace_rwlock != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 133 | rwlock_set_trace(trace_rwlock); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 134 | if (trace_segment != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 135 | sg_set_trace(trace_segment); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 136 | if (trace_semaphore != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 137 | semaphore_set_trace(trace_semaphore); |
bart | a9c3739 | 2008-03-22 09:38:48 +0000 | [diff] [blame] | 138 | if (trace_suppression != -1) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 139 | suppression_set_trace(trace_suppression); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 140 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 141 | return True; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | static void drd_print_usage(void) |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 145 | { |
| 146 | VG_(printf)( |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 147 | " --segment-merging=yes|no Controls segment merging [yes].\n" |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 148 | " Segment merging is an algorithm to limit memory usage of the\n" |
| 149 | " data race detection algorithm. Disabling segment merging may\n" |
| 150 | " improve the accuracy of the so-called 'other segments' displayed\n" |
| 151 | " in race reports but can also trigger an out of memory error.\n" |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 152 | " --show-confl-seg=yes|no Show conflicting segments in race reports [yes].\n" |
| 153 | " --show-stack-usage=yes|no Print stack usage at thread exit time [no].\n" |
| 154 | " --var-info=yes|no Display the names of global, static and\n" |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 155 | " stack variables when a race is reported on such a variable. This\n" |
| 156 | " information is by default not displayed since for big programs\n" |
| 157 | " reading in all debug information for all variables at once may\n" |
| 158 | " cause an out of memory error [no].\n" |
| 159 | "\n" |
bart | 2cb48d6 | 2008-04-01 16:57:42 +0000 | [diff] [blame] | 160 | " exp-drd options for monitoring process behavior:\n" |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 161 | " --trace-address=<address> Trace all load and store activity for the.\n" |
| 162 | " specified address [off].\n" |
| 163 | " --trace-barrier=yes|no Trace all barrier activity [no].\n" |
| 164 | " --trace-cond=yes|no Trace all condition variable activity [no].\n" |
| 165 | " --trace-fork-join=yes|no Trace all thread fork/join activity [no].\n" |
| 166 | " --trace-mutex=yes|no Trace all mutex activity [no].\n" |
| 167 | " --trace-rwlock=yes|no Trace all reader-writer lock activity[no].\n" |
| 168 | " --trace-segment=yes|no Trace segment actions [no].\n" |
| 169 | " --trace-semaphore=yes|no Trace all semaphore activity [no].\n" |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 170 | ); |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 171 | VG_(replacement_malloc_print_usage)(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | static void drd_print_debug_usage(void) |
| 175 | { |
bart | 130463a | 2008-04-01 17:03:33 +0000 | [diff] [blame] | 176 | VG_(printf)( |
| 177 | " --drd-stats=yes|no Print statistics about DRD activity [no].\n" |
| 178 | " --trace-clientobj=yes|no Trace all client object activity [no].\n" |
| 179 | " --trace-csw=yes|no Trace all scheduler context switches [no].\n" |
| 180 | " --trace-danger-set=yes|no Trace all danger set updates [no].\n" |
| 181 | " --trace-suppr=yes|no Trace all address suppression actions [no].\n" |
| 182 | ); |
| 183 | VG_(replacement_malloc_print_debug_usage)(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | |
| 187 | // |
| 188 | // Implements the thread-related core callbacks. |
| 189 | // |
| 190 | |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 191 | static void drd_trace_mem_access(const Addr addr, const SizeT size, |
| 192 | const BmAccessTypeT access_type) |
| 193 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 194 | char vc[80]; |
| 195 | vc_snprint(vc, sizeof(vc), thread_get_vc(thread_get_running_tid())); |
| 196 | VG_(message)(Vg_UserMsg, |
bart | 354009c | 2008-03-16 10:42:33 +0000 | [diff] [blame] | 197 | "%s 0x%lx size %ld (vg %d / drd %d / vc %s)", |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 198 | access_type == eLoad |
| 199 | ? "load " |
| 200 | : access_type == eStore |
| 201 | ? "store" |
| 202 | : access_type == eStart |
| 203 | ? "start" |
| 204 | : access_type == eEnd |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 205 | ? "end " |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 206 | : "????", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 207 | addr, |
| 208 | size, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 209 | VG_(get_running_tid)(), |
| 210 | thread_get_running_tid(), |
| 211 | vc); |
| 212 | VG_(get_and_pp_StackTrace)(VG_(get_running_tid)(), |
| 213 | VG_(clo_backtrace_size)); |
| 214 | tl_assert(DrdThreadIdToVgThreadId(thread_get_running_tid()) |
| 215 | == VG_(get_running_tid)()); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | static void drd_report_race(const Addr addr, const SizeT size, |
| 219 | const BmAccessTypeT access_type) |
| 220 | { |
bart | 49c3a11 | 2008-03-15 10:28:36 +0000 | [diff] [blame] | 221 | DataRaceErrInfo drei; |
| 222 | |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 223 | if (drd_is_suppressed(addr, addr + size)) |
| 224 | return; |
| 225 | |
bart | 354009c | 2008-03-16 10:42:33 +0000 | [diff] [blame] | 226 | drei.tid = thread_get_running_tid(); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 227 | drei.addr = addr; |
| 228 | drei.size = size; |
| 229 | drei.access_type = access_type; |
| 230 | VG_(maybe_record_error)(VG_(get_running_tid)(), |
| 231 | DataRaceErr, |
| 232 | VG_(get_IP)(VG_(get_running_tid)()), |
| 233 | "Conflicting accesses", |
| 234 | &drei); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | static VG_REGPARM(2) void drd_trace_load(Addr addr, SizeT size) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 238 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 239 | Segment* sg; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 240 | |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 241 | #if 0 |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 242 | /* The assert below has been commented out because of performance reasons.*/ |
| 243 | tl_assert(thread_get_running_tid() |
| 244 | == VgThreadIdToDrdThreadId(VG_(get_running_tid()))); |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 245 | #endif |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 246 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 247 | if (! running_thread_is_recording()) |
| 248 | return; |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 249 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 250 | if (range_any_is_traced(addr, size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 251 | { |
| 252 | drd_trace_mem_access(addr, size, eLoad); |
| 253 | } |
| 254 | sg = running_thread_get_segment(); |
| 255 | bm_access_range_load(sg->bm, addr, addr + size); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 256 | if (bm_load_has_conflict_with(thread_get_danger_set(), addr, addr + size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 257 | { |
| 258 | drd_report_race(addr, size, eLoad); |
| 259 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | static VG_REGPARM(1) void drd_trace_load_1(Addr addr) |
| 263 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 264 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 265 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 266 | if (! running_thread_is_recording()) |
| 267 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 268 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 269 | if (range_any_is_traced(addr, 1)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 270 | { |
| 271 | drd_trace_mem_access(addr, 1, eLoad); |
| 272 | } |
| 273 | sg = running_thread_get_segment(); |
| 274 | bm_access_load_1(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 275 | if (bm_load_1_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 276 | { |
| 277 | drd_report_race(addr, 1, eLoad); |
| 278 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | static VG_REGPARM(1) void drd_trace_load_2(Addr addr) |
| 282 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 283 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 284 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 285 | if (! running_thread_is_recording()) |
| 286 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 287 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 288 | if (range_any_is_traced(addr, 2)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 289 | { |
| 290 | drd_trace_mem_access(addr, 2, eLoad); |
| 291 | } |
| 292 | sg = running_thread_get_segment(); |
| 293 | bm_access_load_2(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 294 | if (bm_load_2_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 295 | { |
| 296 | drd_report_race(addr, 2, eLoad); |
| 297 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | static VG_REGPARM(1) void drd_trace_load_4(Addr addr) |
| 301 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 302 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 303 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 304 | if (! running_thread_is_recording()) |
| 305 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 306 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 307 | if (range_any_is_traced(addr, 4)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 308 | { |
| 309 | drd_trace_mem_access(addr, 4, eLoad); |
| 310 | } |
| 311 | sg = running_thread_get_segment(); |
| 312 | bm_access_load_4(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 313 | if (bm_load_4_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 314 | { |
| 315 | drd_report_race(addr, 4, eLoad); |
| 316 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | static VG_REGPARM(1) void drd_trace_load_8(Addr addr) |
| 320 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 321 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 322 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 323 | if (! running_thread_is_recording()) |
| 324 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 325 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 326 | if (range_any_is_traced(addr, 8)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 327 | { |
| 328 | drd_trace_mem_access(addr, 8, eLoad); |
| 329 | } |
| 330 | sg = running_thread_get_segment(); |
| 331 | bm_access_load_8(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 332 | if (bm_load_8_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 333 | { |
| 334 | drd_report_race(addr, 8, eLoad); |
| 335 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | static |
| 339 | VG_REGPARM(2) void drd_trace_store(Addr addr, SizeT size) |
| 340 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 341 | Segment* sg; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 342 | |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 343 | #if 0 |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 344 | /* The assert below has been commented out because of performance reasons.*/ |
| 345 | tl_assert(thread_get_running_tid() |
| 346 | == VgThreadIdToDrdThreadId(VG_(get_running_tid()))); |
bart | f00a85b | 2008-03-13 18:49:23 +0000 | [diff] [blame] | 347 | #endif |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 348 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 349 | if (! running_thread_is_recording()) |
| 350 | return; |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 351 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 352 | if (range_any_is_traced(addr, size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 353 | { |
| 354 | drd_trace_mem_access(addr, size, eStore); |
| 355 | } |
| 356 | sg = running_thread_get_segment(); |
| 357 | bm_access_range_store(sg->bm, addr, addr + size); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 358 | if (bm_store_has_conflict_with(thread_get_danger_set(), addr, addr + size)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 359 | { |
| 360 | drd_report_race(addr, size, eStore); |
| 361 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 362 | } |
| 363 | |
| 364 | static VG_REGPARM(1) void drd_trace_store_1(Addr addr) |
| 365 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 366 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 367 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 368 | if (! running_thread_is_recording()) |
| 369 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 370 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 371 | if (range_any_is_traced(addr, 1)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 372 | { |
| 373 | drd_trace_mem_access(addr, 1, eStore); |
| 374 | } |
| 375 | sg = running_thread_get_segment(); |
| 376 | bm_access_store_1(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 377 | if (bm_store_1_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 378 | { |
| 379 | drd_report_race(addr, 1, eStore); |
| 380 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | static VG_REGPARM(1) void drd_trace_store_2(Addr addr) |
| 384 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 385 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 386 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 387 | if (! running_thread_is_recording()) |
| 388 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 389 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 390 | if (range_any_is_traced(addr, 2)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 391 | { |
| 392 | drd_trace_mem_access(addr, 2, eStore); |
| 393 | } |
| 394 | sg = running_thread_get_segment(); |
| 395 | bm_access_store_2(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 396 | if (bm_store_2_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 397 | { |
| 398 | drd_report_race(addr, 2, eStore); |
| 399 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | static VG_REGPARM(1) void drd_trace_store_4(Addr addr) |
| 403 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 404 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 405 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 406 | if (! running_thread_is_recording()) |
| 407 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 408 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 409 | if (range_any_is_traced(addr, 4)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 410 | { |
| 411 | drd_trace_mem_access(addr, 4, eStore); |
| 412 | } |
| 413 | sg = running_thread_get_segment(); |
| 414 | bm_access_store_4(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 415 | if (bm_store_4_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 416 | { |
| 417 | drd_report_race(addr, 4, eStore); |
| 418 | } |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | static VG_REGPARM(1) void drd_trace_store_8(Addr addr) |
| 422 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 423 | Segment* sg; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 424 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 425 | if (! running_thread_is_recording()) |
| 426 | return; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 427 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 428 | if (range_any_is_traced(addr, 8)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 429 | { |
| 430 | drd_trace_mem_access(addr, 8, eStore); |
| 431 | } |
| 432 | sg = running_thread_get_segment(); |
| 433 | bm_access_store_8(sg->bm, addr); |
bart | 7a28214 | 2008-03-15 08:34:23 +0000 | [diff] [blame] | 434 | if (bm_store_8_has_conflict_with(thread_get_danger_set(), addr)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 435 | { |
| 436 | drd_report_race(addr, 8, eStore); |
| 437 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 438 | } |
| 439 | |
| 440 | static void drd_pre_mem_read(const CorePart part, |
| 441 | const ThreadId tid, |
| 442 | Char* const s, |
| 443 | const Addr a, |
| 444 | const SizeT size) |
| 445 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 446 | if (size > 0) |
| 447 | { |
| 448 | drd_trace_load(a, size); |
| 449 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 450 | } |
| 451 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 452 | static void drd_pre_mem_read_asciiz(const CorePart part, |
| 453 | const ThreadId tid, |
| 454 | Char* const s, |
| 455 | const Addr a) |
| 456 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 457 | const char* p = (void*)a; |
| 458 | SizeT size = 0; |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 459 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 460 | /* Note: the expression '*p' reads client memory and may crash if the */ |
| 461 | /* client provided an invalid pointer ! */ |
| 462 | while (*p) |
| 463 | { |
| 464 | p++; |
| 465 | size++; |
| 466 | } |
| 467 | // To do: find out what a reasonable upper limit on 'size' is. |
| 468 | tl_assert(size < 4096); |
| 469 | if (size > 0) |
| 470 | { |
| 471 | drd_trace_load(a, size); |
| 472 | } |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 473 | } |
| 474 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 475 | static void drd_post_mem_write(const CorePart part, |
| 476 | const ThreadId tid, |
| 477 | const Addr a, |
| 478 | const SizeT size) |
| 479 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 480 | thread_set_vg_running_tid(VG_(get_running_tid)()); |
| 481 | if (size > 0) |
| 482 | { |
| 483 | drd_trace_store(a, size); |
| 484 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 485 | } |
| 486 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 487 | static void drd_start_using_mem(const Addr a1, const SizeT len) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 488 | { |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 489 | tl_assert(a1 < a1 + len); |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 490 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 491 | if (range_any_is_traced(a1, len)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 492 | { |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 493 | drd_trace_mem_access(a1, len, eStart); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 494 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 495 | } |
| 496 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 497 | static void drd_stop_using_mem(const Addr a1, const SizeT len) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 498 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 499 | const Addr a2 = a1 + len; |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 500 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 501 | tl_assert(a1 < a2); |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 502 | |
bart | 005dc97 | 2008-03-29 14:42:59 +0000 | [diff] [blame] | 503 | if (range_any_is_traced(a1, len)) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 504 | { |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 505 | drd_trace_mem_access(a1, len, eEnd); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 506 | } |
| 507 | thread_stop_using_mem(a1, a2); |
| 508 | clientobj_stop_using_mem(a1, a2); |
| 509 | drd_suppression_stop_using_mem(a1, a2); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 510 | } |
| 511 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 512 | static |
| 513 | void drd_start_using_mem_w_perms(const Addr a, const SizeT len, |
| 514 | const Bool rr, const Bool ww, const Bool xx) |
| 515 | { |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 516 | thread_set_vg_running_tid(VG_(get_running_tid)()); |
| 517 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 518 | drd_start_using_mem(a, len); |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 519 | } |
| 520 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 521 | /* Called by the core when the stack of a thread grows, to indicate that */ |
| 522 | /* the addresses in range [ a, a + len [ may now be used by the client. */ |
| 523 | /* Assumption: stacks grow downward. */ |
| 524 | static void drd_start_using_mem_stack(const Addr a, const SizeT len) |
| 525 | { |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 526 | thread_set_stack_min(thread_get_running_tid(), a - VG_STACK_REDZONE_SZB); |
| 527 | drd_start_using_mem(a - VG_STACK_REDZONE_SZB, len + VG_STACK_REDZONE_SZB); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 528 | } |
| 529 | |
| 530 | /* Called by the core when the stack of a thread shrinks, to indicate that */ |
| 531 | /* the addresses [ a, a + len [ are no longer accessible for the client. */ |
| 532 | /* Assumption: stacks grow downward. */ |
| 533 | static void drd_stop_using_mem_stack(const Addr a, const SizeT len) |
| 534 | { |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 535 | thread_set_stack_min(thread_get_running_tid(), |
| 536 | a + len - VG_STACK_REDZONE_SZB); |
| 537 | drd_stop_using_mem(a - VG_STACK_REDZONE_SZB, len + VG_STACK_REDZONE_SZB); |
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 void drd_start_using_mem_stack_signal(const Addr a, const SizeT len) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 541 | { |
bart | d576591 | 2008-03-16 08:40:55 +0000 | [diff] [blame] | 542 | thread_set_vg_running_tid(VG_(get_running_tid)()); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 543 | drd_start_using_mem(a, len); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 544 | } |
| 545 | |
bart | 5e85d26 | 2008-03-01 10:49:37 +0000 | [diff] [blame] | 546 | static void drd_stop_using_mem_stack_signal(Addr a, SizeT len) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 547 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 548 | drd_stop_using_mem(a, len); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 549 | } |
| 550 | |
| 551 | static |
| 552 | void drd_pre_thread_create(const ThreadId creator, const ThreadId created) |
| 553 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 554 | const DrdThreadId drd_creator = VgThreadIdToDrdThreadId(creator); |
| 555 | tl_assert(created != VG_INVALID_THREADID); |
| 556 | thread_pre_create(drd_creator, created); |
| 557 | if (IsValidDrdThreadId(drd_creator)) |
| 558 | { |
| 559 | thread_new_segment(drd_creator); |
| 560 | } |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 561 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 562 | { |
| 563 | VG_(message)(Vg_DebugMsg, |
| 564 | "drd_pre_thread_create creator = %d/%d, created = %d", |
| 565 | creator, drd_creator, created); |
| 566 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 567 | } |
| 568 | |
| 569 | /* Called by Valgrind's core before any loads or stores are performed on */ |
| 570 | /* the context of thread "created". At startup, this function is called */ |
| 571 | /* with arguments (0,1). */ |
| 572 | static |
| 573 | void drd_post_thread_create(const ThreadId created) |
| 574 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 575 | const DrdThreadId drd_created = thread_post_create(created); |
| 576 | tl_assert(created != VG_INVALID_THREADID); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 577 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 578 | { |
| 579 | VG_(message)(Vg_DebugMsg, |
| 580 | "drd_post_thread_create created = %d/%d", |
| 581 | created, drd_created); |
| 582 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 583 | } |
| 584 | |
| 585 | /* Process VG_USERREQ__POST_THREAD_JOIN. This client request is invoked just */ |
| 586 | /* after thread drd_joiner joined thread drd_joinee. */ |
| 587 | void drd_post_thread_join(DrdThreadId drd_joiner, DrdThreadId drd_joinee) |
| 588 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 589 | tl_assert(IsValidDrdThreadId(drd_joiner)); |
| 590 | tl_assert(IsValidDrdThreadId(drd_joinee)); |
| 591 | thread_new_segment(drd_joinee); |
| 592 | thread_combine_vc(drd_joiner, drd_joinee); |
| 593 | thread_new_segment(drd_joiner); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 594 | |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 595 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 596 | { |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame^] | 597 | const unsigned msg_size = 256; |
| 598 | char* msg; |
| 599 | |
| 600 | msg = VG_(malloc)(msg_size); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 601 | const ThreadId joiner = DrdThreadIdToVgThreadId(drd_joiner); |
| 602 | const ThreadId joinee = DrdThreadIdToVgThreadId(drd_joinee); |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame^] | 603 | VG_(snprintf)(msg, msg_size, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 604 | "drd_post_thread_join joiner = %d/%d, joinee = %d/%d", |
| 605 | joiner, drd_joiner, joinee, drd_joinee); |
| 606 | if (joiner) |
| 607 | { |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame^] | 608 | VG_(snprintf)(msg + VG_(strlen)(msg), msg_size - VG_(strlen)(msg), |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 609 | ", new vc: "); |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame^] | 610 | vc_snprint(msg + VG_(strlen)(msg), msg_size - VG_(strlen)(msg), |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 611 | thread_get_vc(drd_joiner)); |
| 612 | } |
| 613 | VG_(message)(Vg_DebugMsg, msg); |
bart | 024a95a | 2008-04-01 18:27:41 +0000 | [diff] [blame^] | 614 | VG_(free)(msg); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 615 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 616 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 617 | thread_delete(drd_joinee); |
| 618 | mutex_thread_delete(drd_joinee); |
| 619 | cond_thread_delete(drd_joinee); |
| 620 | semaphore_thread_delete(drd_joinee); |
| 621 | barrier_thread_delete(drd_joinee); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 622 | } |
| 623 | |
bart | 5bd9f2d | 2008-03-03 20:31:58 +0000 | [diff] [blame] | 624 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 625 | /* Called after a thread has performed its last memory access. */ |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 626 | static void drd_thread_finished(ThreadId vg_tid) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 627 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 628 | DrdThreadId drd_tid; |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 629 | |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 630 | tl_assert(VG_(get_running_tid)() == vg_tid); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 631 | |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 632 | drd_tid = VgThreadIdToDrdThreadId(vg_tid); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 633 | if (s_drd_trace_fork_join) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 634 | { |
| 635 | VG_(message)(Vg_DebugMsg, |
| 636 | "drd_thread_finished tid = %d/%d%s", |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 637 | vg_tid, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 638 | drd_tid, |
| 639 | thread_get_joinable(drd_tid) |
| 640 | ? "" |
| 641 | : " (which is a detached thread)"); |
bart | 912ab8d | 2008-03-29 09:31:43 +0000 | [diff] [blame] | 642 | } |
| 643 | if (s_show_stack_usage) |
| 644 | { |
| 645 | const SizeT stack_size = thread_get_stack_size(drd_tid); |
| 646 | const SizeT used_stack |
| 647 | = thread_get_stack_max(drd_tid) - thread_get_stack_min_min(drd_tid); |
| 648 | VG_(message)(Vg_UserMsg, |
| 649 | "thread %d/%d%s finished and used %ld bytes out of %ld" |
| 650 | " on its stack. Margin: %ld bytes.", |
| 651 | vg_tid, |
| 652 | drd_tid, |
| 653 | thread_get_joinable(drd_tid) |
| 654 | ? "" |
| 655 | : " (which is a detached thread)", |
| 656 | used_stack, |
| 657 | stack_size, |
| 658 | stack_size - used_stack); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 659 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 660 | } |
bart | d43f8d3 | 2008-03-16 17:29:20 +0000 | [diff] [blame] | 661 | drd_stop_using_mem(thread_get_stack_min(drd_tid), |
| 662 | thread_get_stack_max(drd_tid) |
| 663 | - thread_get_stack_min(drd_tid)); |
| 664 | thread_stop_recording(drd_tid); |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 665 | thread_finished(drd_tid); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 666 | } |
| 667 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 668 | void drd_pre_mutex_init(const Addr mutex, const MutexT mutex_type) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 669 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 670 | mutex_init(mutex, mutex_type); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 671 | } |
| 672 | |
sewardj | 347eeba | 2008-01-21 14:19:07 +0000 | [diff] [blame] | 673 | void drd_post_mutex_destroy(const Addr mutex, const MutexT mutex_type) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 674 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 675 | mutex_post_destroy(mutex); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 676 | } |
| 677 | |
bart | 2e3a3c1 | 2008-03-24 08:33:47 +0000 | [diff] [blame] | 678 | void drd_pre_mutex_lock(const Addr mutex, const MutexT mutex_type, |
| 679 | const Bool trylock) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 680 | { |
bart | 2e3a3c1 | 2008-03-24 08:33:47 +0000 | [diff] [blame] | 681 | mutex_pre_lock(mutex, mutex_type, trylock); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 682 | } |
| 683 | |
bart | 0034464 | 2008-03-01 15:27:41 +0000 | [diff] [blame] | 684 | void drd_post_mutex_lock(const Addr mutex, const Bool took_lock) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 685 | { |
bart | 4a975e1 | 2008-03-30 13:28:33 +0000 | [diff] [blame] | 686 | mutex_post_lock(mutex, took_lock, False); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 687 | } |
| 688 | |
bart | 0034464 | 2008-03-01 15:27:41 +0000 | [diff] [blame] | 689 | void drd_pre_mutex_unlock(const Addr mutex, const MutexT mutex_type) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 690 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 691 | mutex_unlock(mutex, mutex_type); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 692 | } |
| 693 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 694 | void drd_pre_cond_init(Addr cond) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 695 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 696 | cond_pre_init(cond); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 697 | } |
| 698 | |
bart | 72b751c | 2008-03-01 13:44:24 +0000 | [diff] [blame] | 699 | void drd_post_cond_destroy(Addr cond) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 700 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 701 | cond_post_destroy(cond); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 702 | } |
| 703 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 704 | void drd_semaphore_init(const Addr semaphore, |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 705 | const Word pshared, const Word value) |
| 706 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 707 | semaphore_init(semaphore, pshared, value); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 708 | } |
| 709 | |
| 710 | void drd_semaphore_destroy(const Addr semaphore) |
| 711 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 712 | semaphore_destroy(semaphore); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 713 | } |
| 714 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 715 | void drd_semaphore_pre_wait(const DrdThreadId tid, const Addr semaphore) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 716 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 717 | semaphore_pre_wait(semaphore); |
bart | 28230a3 | 2008-02-29 17:27:03 +0000 | [diff] [blame] | 718 | } |
| 719 | |
| 720 | void drd_semaphore_post_wait(const DrdThreadId tid, const Addr semaphore, |
| 721 | const Bool waited) |
| 722 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 723 | semaphore_post_wait(tid, semaphore, waited); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 724 | } |
| 725 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 726 | void drd_semaphore_pre_post(const DrdThreadId tid, const Addr semaphore) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 727 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 728 | semaphore_pre_post(tid, semaphore); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 729 | } |
| 730 | |
| 731 | void drd_semaphore_post_post(const DrdThreadId tid, const Addr semaphore, |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 732 | const Bool waited) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 733 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 734 | semaphore_post_post(tid, semaphore, waited); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 735 | } |
| 736 | |
| 737 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 738 | void drd_barrier_init(const Addr barrier, |
| 739 | const BarrierT barrier_type, const Word count, |
| 740 | const Bool reinitialization) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 741 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 742 | barrier_init(barrier, barrier_type, count, reinitialization); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 743 | } |
| 744 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 745 | void drd_barrier_destroy(const Addr barrier, const BarrierT barrier_type) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 746 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 747 | barrier_destroy(barrier, barrier_type); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 748 | } |
| 749 | |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 750 | void drd_barrier_pre_wait(const DrdThreadId tid, const Addr barrier, |
| 751 | const BarrierT barrier_type) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 752 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 753 | barrier_pre_wait(tid, barrier, barrier_type); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | void drd_barrier_post_wait(const DrdThreadId tid, const Addr barrier, |
bart | 0268dfa | 2008-03-11 20:10:21 +0000 | [diff] [blame] | 757 | const BarrierT barrier_type, const Bool waited) |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 758 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 759 | barrier_post_wait(tid, barrier, barrier_type, waited); |
sewardj | 8564292 | 2008-01-14 11:54:56 +0000 | [diff] [blame] | 760 | } |
| 761 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 762 | |
| 763 | // |
| 764 | // Implementation of the tool interface. |
| 765 | // |
| 766 | |
| 767 | static |
| 768 | void drd_post_clo_init(void) |
sewardj | dcbb8d3 | 2007-11-26 21:34:30 +0000 | [diff] [blame] | 769 | { |
| 770 | # if defined(VGP_x86_linux) || defined(VGP_amd64_linux) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 771 | /* fine */ |
sewardj | dcbb8d3 | 2007-11-26 21:34:30 +0000 | [diff] [blame] | 772 | # else |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 773 | 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] | 774 | # endif |
bart | 95761b5 | 2008-03-29 08:34:03 +0000 | [diff] [blame] | 775 | |
| 776 | if (s_drd_var_info) |
| 777 | { |
| 778 | VG_(needs_var_info)(); |
| 779 | } |
sewardj | dcbb8d3 | 2007-11-26 21:34:30 +0000 | [diff] [blame] | 780 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 781 | |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 782 | static void instrument_load(IRSB* const bb, |
| 783 | IRExpr* const addr_expr, |
| 784 | const HWord size) |
| 785 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 786 | IRExpr* size_expr; |
| 787 | IRExpr** argv; |
| 788 | IRDirty* di; |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 789 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 790 | switch (size) |
| 791 | { |
| 792 | case 1: |
| 793 | argv = mkIRExprVec_1(addr_expr); |
| 794 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 795 | "drd_trace_load_1", |
| 796 | VG_(fnptr_to_fnentry)(drd_trace_load_1), |
| 797 | argv); |
| 798 | break; |
| 799 | case 2: |
| 800 | argv = mkIRExprVec_1(addr_expr); |
| 801 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 802 | "drd_trace_load_2", |
| 803 | VG_(fnptr_to_fnentry)(drd_trace_load_2), |
| 804 | argv); |
| 805 | break; |
| 806 | case 4: |
| 807 | argv = mkIRExprVec_1(addr_expr); |
| 808 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 809 | "drd_trace_load_4", |
| 810 | VG_(fnptr_to_fnentry)(drd_trace_load_4), |
| 811 | argv); |
| 812 | break; |
| 813 | case 8: |
| 814 | argv = mkIRExprVec_1(addr_expr); |
| 815 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 816 | "drd_trace_load_8", |
| 817 | VG_(fnptr_to_fnentry)(drd_trace_load_8), |
| 818 | argv); |
| 819 | break; |
| 820 | default: |
| 821 | size_expr = mkIRExpr_HWord(size); |
| 822 | argv = mkIRExprVec_2(addr_expr, size_expr); |
| 823 | di = unsafeIRDirty_0_N(/*regparms*/2, |
| 824 | "drd_trace_load", |
| 825 | VG_(fnptr_to_fnentry)(drd_trace_load), |
| 826 | argv); |
| 827 | break; |
| 828 | } |
| 829 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | static void instrument_store(IRSB* const bb, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 833 | IRExpr* const addr_expr, |
| 834 | const HWord size) |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 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_store_1", |
| 846 | VG_(fnptr_to_fnentry)(drd_trace_store_1), |
| 847 | argv); |
| 848 | break; |
| 849 | case 2: |
| 850 | argv = mkIRExprVec_1(addr_expr); |
| 851 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 852 | "drd_trace_store_2", |
| 853 | VG_(fnptr_to_fnentry)(drd_trace_store_2), |
| 854 | argv); |
| 855 | break; |
| 856 | case 4: |
| 857 | argv = mkIRExprVec_1(addr_expr); |
| 858 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 859 | "drd_trace_store_4", |
| 860 | VG_(fnptr_to_fnentry)(drd_trace_store_4), |
| 861 | argv); |
| 862 | break; |
| 863 | case 8: |
| 864 | argv = mkIRExprVec_1(addr_expr); |
| 865 | di = unsafeIRDirty_0_N(/*regparms*/1, |
| 866 | "drd_trace_store_8", |
| 867 | VG_(fnptr_to_fnentry)(drd_trace_store_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_store", |
| 875 | VG_(fnptr_to_fnentry)(drd_trace_store), |
| 876 | argv); |
| 877 | break; |
| 878 | } |
| 879 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
bart | a79df6e | 2008-03-14 17:07:51 +0000 | [diff] [blame] | 880 | } |
| 881 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 882 | static |
| 883 | IRSB* drd_instrument(VgCallbackClosure* const closure, |
sewardj | 347eeba | 2008-01-21 14:19:07 +0000 | [diff] [blame] | 884 | IRSB* const bb_in, |
| 885 | VexGuestLayout* const layout, |
| 886 | VexGuestExtents* const vge, |
| 887 | IRType const gWordTy, |
| 888 | IRType const hWordTy) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 889 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 890 | IRDirty* di; |
| 891 | Int i; |
| 892 | IRSB* bb; |
| 893 | IRExpr** argv; |
| 894 | Bool instrument = True; |
| 895 | Bool bus_locked = False; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 896 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 897 | /* Set up BB */ |
| 898 | bb = emptyIRSB(); |
| 899 | bb->tyenv = deepCopyIRTypeEnv(bb_in->tyenv); |
| 900 | bb->next = deepCopyIRExpr(bb_in->next); |
| 901 | bb->jumpkind = bb_in->jumpkind; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 902 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 903 | for (i = 0; i < bb_in->stmts_used; i++) |
| 904 | { |
| 905 | IRStmt* const st = bb_in->stmts[i]; |
| 906 | tl_assert(st); |
| 907 | if (st->tag == Ist_NoOp) |
| 908 | continue; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 909 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 910 | switch (st->tag) |
| 911 | { |
| 912 | case Ist_IMark: |
| 913 | instrument = VG_(seginfo_sect_kind)(NULL, 0, st->Ist.IMark.addr) |
| 914 | != Vg_SectPLT; |
| 915 | break; |
| 916 | |
| 917 | case Ist_MBE: |
| 918 | switch (st->Ist.MBE.event) |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 919 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 920 | case Imbe_Fence: |
| 921 | break; /* not interesting */ |
| 922 | case Imbe_BusLock: |
| 923 | tl_assert(! bus_locked); |
| 924 | bus_locked = True; |
| 925 | break; |
| 926 | case Imbe_BusUnlock: |
| 927 | tl_assert(bus_locked); |
| 928 | bus_locked = False; |
| 929 | break; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 930 | default: |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 931 | tl_assert(0); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 932 | } |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 933 | addStmtToIRSB(bb, st); |
| 934 | break; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 935 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 936 | case Ist_Store: |
| 937 | if (instrument && ! bus_locked) |
| 938 | { |
| 939 | instrument_store(bb, |
| 940 | st->Ist.Store.addr, |
| 941 | sizeofIRType(typeOfIRExpr(bb->tyenv, |
| 942 | st->Ist.Store.data))); |
| 943 | } |
| 944 | addStmtToIRSB(bb, st); |
| 945 | break; |
bart | a47b351 | 2008-03-07 17:22:26 +0000 | [diff] [blame] | 946 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 947 | case Ist_WrTmp: |
| 948 | if (instrument) |
| 949 | { |
| 950 | const IRExpr* const data = st->Ist.WrTmp.data; |
| 951 | if (data->tag == Iex_Load) |
| 952 | { |
| 953 | instrument_load(bb, |
| 954 | data->Iex.Load.addr, |
| 955 | sizeofIRType(data->Iex.Load.ty)); |
| 956 | } |
| 957 | } |
| 958 | addStmtToIRSB(bb, st); |
| 959 | break; |
| 960 | |
| 961 | case Ist_Dirty: |
| 962 | if (instrument) |
| 963 | { |
| 964 | IRDirty* d = st->Ist.Dirty.details; |
| 965 | IREffect const mFx = d->mFx; |
| 966 | switch (mFx) { |
| 967 | case Ifx_None: |
| 968 | break; |
| 969 | case Ifx_Read: |
| 970 | case Ifx_Write: |
| 971 | case Ifx_Modify: |
| 972 | tl_assert(d->mAddr); |
| 973 | tl_assert(d->mSize > 0); |
| 974 | argv = mkIRExprVec_2(d->mAddr, mkIRExpr_HWord(d->mSize)); |
| 975 | if (mFx == Ifx_Read || mFx == Ifx_Modify) { |
| 976 | di = unsafeIRDirty_0_N( |
| 977 | /*regparms*/2, |
| 978 | "drd_trace_load", |
| 979 | VG_(fnptr_to_fnentry)(drd_trace_load), |
| 980 | argv); |
| 981 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
| 982 | } |
| 983 | if ((mFx == Ifx_Write || mFx == Ifx_Modify) |
| 984 | && ! bus_locked) |
| 985 | { |
| 986 | di = unsafeIRDirty_0_N( |
| 987 | /*regparms*/2, |
| 988 | "drd_trace_store", |
| 989 | VG_(fnptr_to_fnentry)(drd_trace_store), |
| 990 | argv); |
| 991 | addStmtToIRSB(bb, IRStmt_Dirty(di)); |
| 992 | } |
| 993 | break; |
| 994 | default: |
| 995 | tl_assert(0); |
| 996 | } |
| 997 | } |
| 998 | addStmtToIRSB(bb, st); |
| 999 | break; |
| 1000 | |
| 1001 | default: |
| 1002 | addStmtToIRSB(bb, st); |
| 1003 | break; |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | tl_assert(! bus_locked); |
| 1008 | |
| 1009 | return bb; |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1010 | } |
| 1011 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1012 | static void drd_start_client_code(const ThreadId tid, const ULong bbs_done) |
| 1013 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1014 | tl_assert(tid == VG_(get_running_tid)()); |
| 1015 | thread_set_vg_running_tid(tid); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1016 | } |
| 1017 | |
| 1018 | static |
| 1019 | void drd_fini(Int exitcode) |
| 1020 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1021 | // thread_print_all(); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1022 | if (VG_(clo_verbosity) > 1 || s_drd_print_stats) |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1023 | { |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1024 | VG_(message)(Vg_UserMsg, |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1025 | " thread: %lld context switches" |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1026 | " / %lld updates of the danger set.", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1027 | thread_get_context_switch_count(), |
| 1028 | thread_get_update_danger_set_count()); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1029 | VG_(message)(Vg_UserMsg, |
| 1030 | " segments: created %lld segments, max %lld alive," |
| 1031 | " %lld discard points.", |
bart | 7102f10 | 2008-03-17 17:37:53 +0000 | [diff] [blame] | 1032 | sg_get_created_segments_count(), |
| 1033 | sg_get_max_alive_segments_count(), |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1034 | thread_get_discard_ordered_segments_count()); |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1035 | VG_(message)(Vg_UserMsg, |
| 1036 | " bitmaps: %lld level 3 / %lld level 2 bitmaps were" |
| 1037 | " allocated.", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1038 | bm_get_bitmap_creation_count(), |
bart | bd7e56e | 2008-03-31 18:14:12 +0000 | [diff] [blame] | 1039 | bm_get_bitmap2_creation_count()); |
| 1040 | VG_(message)(Vg_UserMsg, |
| 1041 | " mutex: %lld non-recursive lock/unlock events.", |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1042 | get_mutex_lock_count()); |
| 1043 | drd_print_malloc_stats(); |
| 1044 | } |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1045 | } |
| 1046 | |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1047 | static |
| 1048 | void drd_pre_clo_init(void) |
| 1049 | { |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1050 | // Basic tool stuff. |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1051 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1052 | VG_(details_name) ("exp-drd"); |
| 1053 | VG_(details_version) (NULL); |
| 1054 | VG_(details_description) ("a data race detector"); |
| 1055 | VG_(details_copyright_author)("Copyright (C) 2006-2008, and GNU GPL'd," |
| 1056 | " by Bart Van Assche."); |
| 1057 | VG_(details_bug_reports_to) (VG_BUGS_TO); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1058 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1059 | VG_(basic_tool_funcs) (drd_post_clo_init, |
| 1060 | drd_instrument, |
| 1061 | drd_fini); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1062 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1063 | // Command line stuff. |
| 1064 | VG_(needs_command_line_options)(drd_process_cmd_line_option, |
| 1065 | drd_print_usage, |
| 1066 | drd_print_debug_usage); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1067 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1068 | // Error handling. |
| 1069 | drd_register_error_handlers(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1070 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1071 | // Core event tracking. |
| 1072 | VG_(track_pre_mem_read) (drd_pre_mem_read); |
| 1073 | VG_(track_pre_mem_read_asciiz) (drd_pre_mem_read_asciiz); |
| 1074 | VG_(track_post_mem_write) (drd_post_mem_write); |
| 1075 | VG_(track_new_mem_brk) (drd_start_using_mem); |
| 1076 | VG_(track_new_mem_mmap) (drd_start_using_mem_w_perms); |
| 1077 | VG_(track_new_mem_stack) (drd_start_using_mem_stack); |
| 1078 | VG_(track_new_mem_stack_signal) (drd_start_using_mem_stack_signal); |
| 1079 | VG_(track_new_mem_startup) (drd_start_using_mem_w_perms); |
| 1080 | VG_(track_die_mem_brk) (drd_stop_using_mem); |
| 1081 | VG_(track_die_mem_munmap) (drd_stop_using_mem); |
| 1082 | VG_(track_die_mem_stack) (drd_stop_using_mem_stack); |
| 1083 | VG_(track_die_mem_stack_signal) (drd_stop_using_mem_stack_signal); |
| 1084 | VG_(track_start_client_code) (drd_start_client_code); |
| 1085 | VG_(track_pre_thread_ll_create) (drd_pre_thread_create); |
| 1086 | VG_(track_pre_thread_first_insn)(drd_post_thread_create); |
| 1087 | VG_(track_pre_thread_ll_exit) (drd_thread_finished); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1088 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1089 | // Other stuff. |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1090 | drd_register_malloc_wrappers(drd_start_using_mem, drd_stop_using_mem); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1091 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1092 | drd_clientreq_init(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1093 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1094 | drd_suppression_init(); |
bart | 4bb53d8 | 2008-02-28 19:06:34 +0000 | [diff] [blame] | 1095 | |
bart | 3772a98 | 2008-03-15 08:11:03 +0000 | [diff] [blame] | 1096 | clientobj_init(); |
sewardj | af44c82 | 2007-11-25 14:01:38 +0000 | [diff] [blame] | 1097 | } |
| 1098 | |
| 1099 | |
| 1100 | VG_DETERMINE_INTERFACE_VERSION(drd_pre_clo_init) |