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ftmemsim-valgrind/drd/drd_main.c
Julian Seward 8ffe2fdefa Tidy up of messaging: 
* For all tools and the core, don't show statistics when -v is in
  effect.  Instead, try to restrict -v to mostly user-useful
  stuff.

* A new flag --stats=no|yes [no] produces statistics output instead.

* Fix longstanding problem in that Memcheck's leak checker ran after
  the core's error manager module shut down, thereby not showing use
  counts of leak suppressions.  This fixes #186790.

* As a consequence, the leak checker text output of Memcheck has
  changed a bit -- leak check is done before the final error
  summary is done (much more logical), and the output has been
  tidied up a bit.

* Helgrind, Drd and Ptrcheck now also print "For counts of
  detected and suppressed errors, rerun with: -v", which makes
  them consistent with Memcheck in this regard.  These are
  filtered out by the regtest filter scripts.

For all tools except Memcheck, the regtests are unchanged.  On
Memcheck regtests still fail due to rearrangements of the leak
checker output.  This will be fixed by a followup commit.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10746
2009-08-07 15:46:56 +00:00

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/* -*- mode: C; c-basic-offset: 3; -*- */
/*
This file is part of drd, a thread error detector.
Copyright (C) 2006-2009 Bart Van Assche <bart.vanassche@gmail.com>.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#include "drd_barrier.h"
#include "drd_clientobj.h"
#include "drd_clientreq.h"
#include "drd_cond.h"
#include "drd_error.h"
#include "drd_load_store.h"
#include "drd_malloc_wrappers.h"
#include "drd_mutex.h"
#include "drd_rwlock.h"
#include "drd_segment.h"
#include "drd_semaphore.h"
#include "drd_suppression.h"
#include "drd_thread.h"
#include "libvex_guest_offsets.h"
#include "pub_drd_bitmap.h"
#include "pub_tool_vki.h" // Must be included before pub_tool_libcproc
#include "pub_tool_basics.h"
#include "pub_tool_debuginfo.h" // VG_(describe_IP)()
#include "pub_tool_libcassert.h" // tl_assert()
#include "pub_tool_libcbase.h" // VG_(strcmp)
#include "pub_tool_libcprint.h" // VG_(printf)
#include "pub_tool_libcproc.h"
#include "pub_tool_machine.h"
#include "pub_tool_mallocfree.h" // VG_(malloc)(), VG_(free)()
#include "pub_tool_options.h" // command line options
#include "pub_tool_replacemalloc.h"
#include "pub_tool_threadstate.h" // VG_(get_running_tid)()
#include "pub_tool_tooliface.h"
/* Local variables. */
static Bool DRD_(s_print_stats) = False;
static Bool DRD_(s_var_info) = False;
static Bool DRD_(s_show_stack_usage) = False;
/**
* Implement the needs_command_line_options for drd.
*/
static Bool DRD_(process_cmd_line_option)(Char* arg)
{
int check_stack_accesses = -1;
int exclusive_threshold_ms = -1;
int first_race_only = -1;
int report_signal_unlocked = -1;
int segment_merging = -1;
int segment_merge_interval = -1;
int shared_threshold_ms = -1;
int show_confl_seg = -1;
int trace_barrier = -1;
int trace_clientobj = -1;
int trace_cond = -1;
int trace_csw = -1;
int trace_fork_join = -1;
int trace_conflict_set = -1;
int trace_conflict_set_bm = -1;
int trace_mutex = -1;
int trace_rwlock = -1;
int trace_segment = -1;
int trace_semaphore = -1;
int trace_suppression = -1;
Char* trace_address = 0;
if VG_BOOL_CLO(arg, "--check-stack-var", check_stack_accesses) {}
else if VG_BOOL_CLO(arg, "--drd-stats", DRD_(s_print_stats)) {}
else if VG_BOOL_CLO(arg, "--first-race-only", first_race_only) {}
else if VG_BOOL_CLO(arg,"--report-signal-unlocked",report_signal_unlocked)
{}
else if VG_BOOL_CLO(arg, "--segment-merging", segment_merging) {}
else if VG_INT_CLO (arg, "--segment-merging-interval", segment_merge_interval)
{}
else if VG_BOOL_CLO(arg, "--show-confl-seg", show_confl_seg) {}
else if VG_BOOL_CLO(arg, "--show-stack-usage",
DRD_(s_show_stack_usage)) {}
else if VG_BOOL_CLO(arg, "--trace-barrier", trace_barrier) {}
else if VG_BOOL_CLO(arg, "--trace-clientobj", trace_clientobj) {}
else if VG_BOOL_CLO(arg, "--trace-cond", trace_cond) {}
else if VG_BOOL_CLO(arg, "--trace-conflict-set", trace_conflict_set) {}
else if VG_BOOL_CLO(arg, "--trace-conflict-set-bm", trace_conflict_set_bm){}
else if VG_BOOL_CLO(arg, "--trace-csw", trace_csw) {}
else if VG_BOOL_CLO(arg, "--trace-fork-join", trace_fork_join) {}
else if VG_BOOL_CLO(arg, "--trace-mutex", trace_mutex) {}
else if VG_BOOL_CLO(arg, "--trace-rwlock", trace_rwlock) {}
else if VG_BOOL_CLO(arg, "--trace-segment", trace_segment) {}
else if VG_BOOL_CLO(arg, "--trace-semaphore", trace_semaphore) {}
else if VG_BOOL_CLO(arg, "--trace-suppr", trace_suppression) {}
else if VG_BOOL_CLO(arg, "--var-info", DRD_(s_var_info)) {}
else if VG_INT_CLO (arg, "--exclusive-threshold", exclusive_threshold_ms) {}
else if VG_INT_CLO (arg, "--shared-threshold", shared_threshold_ms) {}
else if VG_STR_CLO (arg, "--trace-addr", trace_address) {}
else
return VG_(replacement_malloc_process_cmd_line_option)(arg);
if (check_stack_accesses != -1)
DRD_(set_check_stack_accesses)(check_stack_accesses);
if (exclusive_threshold_ms != -1)
{
DRD_(mutex_set_lock_threshold)(exclusive_threshold_ms);
DRD_(rwlock_set_exclusive_threshold)(exclusive_threshold_ms);
}
if (first_race_only != -1)
{
DRD_(set_first_race_only)(first_race_only);
}
if (report_signal_unlocked != -1)
{
DRD_(cond_set_report_signal_unlocked)(report_signal_unlocked);
}
if (shared_threshold_ms != -1)
{
DRD_(rwlock_set_shared_threshold)(shared_threshold_ms);
}
if (segment_merging != -1)
DRD_(thread_set_segment_merging)(segment_merging);
if (segment_merge_interval != -1)
DRD_(thread_set_segment_merge_interval)(segment_merge_interval);
if (show_confl_seg != -1)
DRD_(set_show_conflicting_segments)(show_confl_seg);
if (trace_address)
{
const Addr addr = VG_(strtoll16)(trace_address, 0);
DRD_(start_tracing_address_range)(addr, addr + 1);
}
if (trace_barrier != -1)
DRD_(barrier_set_trace)(trace_barrier);
if (trace_clientobj != -1)
DRD_(clientobj_set_trace)(trace_clientobj);
if (trace_cond != -1)
DRD_(cond_set_trace)(trace_cond);
if (trace_csw != -1)
DRD_(thread_trace_context_switches)(trace_csw);
if (trace_fork_join != -1)
DRD_(thread_set_trace_fork_join)(trace_fork_join);
if (trace_conflict_set != -1)
DRD_(thread_trace_conflict_set)(trace_conflict_set);
if (trace_conflict_set_bm != -1)
DRD_(thread_trace_conflict_set_bm)(trace_conflict_set_bm);
if (trace_mutex != -1)
DRD_(mutex_set_trace)(trace_mutex);
if (trace_rwlock != -1)
DRD_(rwlock_set_trace)(trace_rwlock);
if (trace_segment != -1)
DRD_(sg_set_trace)(trace_segment);
if (trace_semaphore != -1)
DRD_(semaphore_set_trace)(trace_semaphore);
if (trace_suppression != -1)
DRD_(suppression_set_trace)(trace_suppression);
return True;
}
static void DRD_(print_usage)(void)
{
VG_(printf)(
" --check-stack-var=yes|no Whether or not to report data races on\n"
" stack variables [no].\n"
" --exclusive-threshold=<n> Print an error message if any mutex or\n"
" writer lock is held longer than the specified time (in milliseconds).\n"
" --first-race-only=yes|no Only report the first data race that occurs on\n"
" a memory location instead of all races [no].\n"
" --report-signal-unlocked=yes|no Whether to report calls to\n"
" pthread_cond_signal() where the mutex associated\n"
" with the signal via pthread_cond_wait() is not\n"
" locked at the time the signal is sent [yes].\n"
" --segment-merging=yes|no Controls segment merging [yes].\n"
" Segment merging is an algorithm to limit memory usage of the\n"
" data race detection algorithm. Disabling segment merging may\n"
" improve the accuracy of the so-called 'other segments' displayed\n"
" in race reports but can also trigger an out of memory error.\n"
" --segment-merging-interval=<n> Perform segment merging every time n new\n"
" segments have been created. Default: %d.\n"
" --shared-threshold=<n> Print an error message if a reader lock\n"
" is held longer than the specified time (in milliseconds).\n"
" --show-confl-seg=yes|no Show conflicting segments in race reports [yes].\n"
" --show-stack-usage=yes|no Print stack usage at thread exit time [no].\n"
"\n"
" drd options for monitoring process behavior:\n"
" --trace-addr=<address> Trace all load and store activity for the.\n"
" specified address [off].\n"
" --trace-barrier=yes|no Trace all barrier activity [no].\n"
" --trace-cond=yes|no Trace all condition variable activity [no].\n"
" --trace-fork-join=yes|no Trace all thread fork/join activity [no].\n"
" --trace-mutex=yes|no Trace all mutex activity [no].\n"
" --trace-rwlock=yes|no Trace all reader-writer lock activity[no].\n"
" --trace-semaphore=yes|no Trace all semaphore activity [no].\n",
DRD_(thread_get_segment_merge_interval)()
);
}
static void DRD_(print_debug_usage)(void)
{
VG_(printf)(
" --drd-stats=yes|no Print statistics about DRD activity [no].\n"
" --trace-clientobj=yes|no Trace all client object activity [no].\n"
" --trace-csw=yes|no Trace all scheduler context switches [no].\n"
" --trace-conflict-set=yes|no Trace all conflict set updates [no].\n"
" --trace-conflict-set-bm=yes|no Trace all conflict set bitmap\n"
" updates [no]. Note: enabling this option\n"
" will generate a lot of output !\n"
" --trace-segment=yes|no Trace segment actions [no].\n"
" --trace-suppr=yes|no Trace all address suppression actions [no].\n"
);
}
//
// Implements the thread-related core callbacks.
//
static void drd_pre_mem_read(const CorePart part,
const ThreadId tid,
Char* const s,
const Addr a,
const SizeT size)
{
if (size > 0)
{
DRD_(trace_load)(a, size);
}
}
static void drd_pre_mem_read_asciiz(const CorePart part,
const ThreadId tid,
Char* const s,
const Addr a)
{
const char* p = (void*)a;
SizeT size = 0;
/* Note: the expression '*p' reads client memory and may crash if the */
/* client provided an invalid pointer ! */
while (*p)
{
p++;
size++;
}
// To do: find out what a reasonable upper limit on 'size' is.
tl_assert(size < 4096);
if (size > 0)
{
DRD_(trace_load)(a, size);
}
}
static void drd_post_mem_write(const CorePart part,
const ThreadId tid,
const Addr a,
const SizeT size)
{
DRD_(thread_set_vg_running_tid)(VG_(get_running_tid)());
if (size > 0)
{
DRD_(trace_store)(a, size);
}
}
static __inline__
void drd_start_using_mem(const Addr a1, const SizeT len)
{
tl_assert(a1 < a1 + len);
if (UNLIKELY(DRD_(any_address_is_traced)()))
{
DRD_(trace_mem_access)(a1, len, eStart);
}
if (UNLIKELY(DRD_(running_thread_inside_pthread_create)()))
{
DRD_(start_suppression)(a1, a1 + len, "pthread_create()");
}
}
static void drd_start_using_mem_w_ecu(const Addr a1,
const SizeT len,
UInt ec_uniq)
{
drd_start_using_mem(a1, len);
}
static void drd_start_using_mem_w_tid(const Addr a1,
const SizeT len,
ThreadId tid)
{
drd_start_using_mem(a1, len);
}
static __inline__
void drd_stop_using_mem(const Addr a1, const SizeT len,
const Bool is_stack_mem)
{
const Addr a2 = a1 + len;
tl_assert(a1 < a2);
if (UNLIKELY(DRD_(any_address_is_traced)()))
{
DRD_(trace_mem_access)(a1, len, eEnd);
}
if (! is_stack_mem || DRD_(get_check_stack_accesses)())
{
DRD_(thread_stop_using_mem)(a1, a2);
DRD_(clientobj_stop_using_mem)(a1, a2);
DRD_(suppression_stop_using_mem)(a1, a2);
}
}
static __inline__
void drd_stop_using_nonstack_mem(const Addr a1, const SizeT len)
{
drd_stop_using_mem(a1, len, False);
}
/**
* Discard all information DRD has about memory accesses and client objects
* in the specified address range.
*/
void DRD_(clean_memory)(const Addr a1, const SizeT len)
{
const Bool is_stack_memory = DRD_(thread_address_on_any_stack)(a1);
drd_stop_using_mem(a1, len, is_stack_memory);
drd_start_using_mem(a1, len);
}
/**
* Suppress data race reports on all addresses contained in .plt and
* .got.plt sections inside the address range [ a, a + len [. The data in
* these sections is modified by _dl_relocate_object() every time a function
* in a shared library is called for the first time. Since the first call
* to a function in a shared library can happen from a multithreaded context,
* such calls can cause conflicting accesses. See also Ulrich Drepper's
* paper "How to Write Shared Libraries" for more information about relocation
* (http://people.redhat.com/drepper/dsohowto.pdf).
*/
static void DRD_(suppress_relocation_conflicts)(const Addr a, const SizeT len)
{
const DebugInfo* di;
#if 0
VG_(printf)("Evaluating range @ 0x%lx size %ld\n", a, len);
#endif
for (di = VG_(next_DebugInfo)(0); di; di = VG_(next_DebugInfo)(di))
{
Addr avma;
SizeT size;
avma = VG_(DebugInfo_get_plt_avma)(di);
size = VG_(DebugInfo_get_plt_size)(di);
tl_assert((avma && size) || (avma == 0 && size == 0));
if (size > 0)
{
#if 0
VG_(printf)("Suppressing .plt @ 0x%lx size %ld\n", avma, size);
#endif
tl_assert(VG_(DebugInfo_sect_kind)(NULL, 0, avma) == Vg_SectPLT);
DRD_(start_suppression)(avma, avma + size, ".plt");
}
avma = VG_(DebugInfo_get_gotplt_avma)(di);
size = VG_(DebugInfo_get_gotplt_size)(di);
tl_assert((avma && size) || (avma == 0 && size == 0));
if (size > 0)
{
#if 0
VG_(printf)("Suppressing .got.plt @ 0x%lx size %ld\n", avma, size);
#endif
tl_assert(VG_(DebugInfo_sect_kind)(NULL, 0, avma) == Vg_SectGOTPLT);
DRD_(start_suppression)(avma, avma + size, ".gotplt");
}
}
}
static
void drd_start_using_mem_w_perms(const Addr a, const SizeT len,
const Bool rr, const Bool ww, const Bool xx,
ULong di_handle)
{
DRD_(thread_set_vg_running_tid)(VG_(get_running_tid)());
drd_start_using_mem(a, len);
DRD_(suppress_relocation_conflicts)(a, len);
}
/* Called by the core when the stack of a thread grows, to indicate that */
/* the addresses in range [ a, a + len [ may now be used by the client. */
/* Assumption: stacks grow downward. */
static __inline__
void drd_start_using_mem_stack(const Addr a, const SizeT len)
{
DRD_(thread_set_stack_min)(DRD_(thread_get_running_tid)(),
a - VG_STACK_REDZONE_SZB);
drd_start_using_mem(a - VG_STACK_REDZONE_SZB,
len + VG_STACK_REDZONE_SZB);
}
/* Called by the core when the stack of a thread shrinks, to indicate that */
/* the addresses [ a, a + len [ are no longer accessible for the client. */
/* Assumption: stacks grow downward. */
static __inline__
void drd_stop_using_mem_stack(const Addr a, const SizeT len)
{
DRD_(thread_set_stack_min)(DRD_(thread_get_running_tid)(),
a + len - VG_STACK_REDZONE_SZB);
drd_stop_using_mem(a - VG_STACK_REDZONE_SZB, len + VG_STACK_REDZONE_SZB,
True);
}
/**
* Callback function called by the Valgrind core before a stack area is
* being used by a signal handler.
*
* @param[in] a Start of address range.
* @param[in] len Address range length.
* @param[in] tid Valgrind thread ID for whom the signal frame is being
* constructed.
*/
static void drd_start_using_mem_stack_signal(const Addr a, const SizeT len,
ThreadId tid)
{
DRD_(thread_set_vg_running_tid)(VG_(get_running_tid)());
drd_start_using_mem(a, len);
}
static void drd_stop_using_mem_stack_signal(Addr a, SizeT len)
{
drd_stop_using_mem(a, len, True);
}
static
void drd_pre_thread_create(const ThreadId creator, const ThreadId created)
{
const DrdThreadId drd_creator = DRD_(VgThreadIdToDrdThreadId)(creator);
tl_assert(created != VG_INVALID_THREADID);
DRD_(thread_pre_create)(drd_creator, created);
if (DRD_(IsValidDrdThreadId)(drd_creator))
{
DRD_(thread_new_segment)(drd_creator);
}
if (DRD_(thread_get_trace_fork_join)())
{
VG_(message)(Vg_DebugMsg,
"drd_pre_thread_create creator = %d, created = %d\n",
drd_creator, created);
}
}
/* Called by Valgrind's core before any loads or stores are performed on */
/* the context of thread "created". At startup, this function is called */
/* with arguments (0,1). */
static
void drd_post_thread_create(const ThreadId vg_created)
{
DrdThreadId drd_created;
tl_assert(vg_created != VG_INVALID_THREADID);
drd_created = DRD_(thread_post_create)(vg_created);
if (DRD_(thread_get_trace_fork_join)())
{
VG_(message)(Vg_DebugMsg,
"drd_post_thread_create created = %d\n",
drd_created);
}
if (! DRD_(get_check_stack_accesses)())
{
DRD_(start_suppression)(DRD_(thread_get_stack_max)(drd_created)
- DRD_(thread_get_stack_size)(drd_created),
DRD_(thread_get_stack_max)(drd_created),
"stack");
}
}
/* Called after a thread has performed its last memory access. */
static void drd_thread_finished(ThreadId vg_tid)
{
DrdThreadId drd_tid;
tl_assert(VG_(get_running_tid)() == vg_tid);
drd_tid = DRD_(VgThreadIdToDrdThreadId)(vg_tid);
if (DRD_(thread_get_trace_fork_join)())
{
VG_(message)(Vg_DebugMsg,
"drd_thread_finished tid = %d%s\n",
drd_tid,
DRD_(thread_get_joinable)(drd_tid)
? ""
: " (which is a detached thread)");
}
if (DRD_(s_show_stack_usage))
{
const SizeT stack_size = DRD_(thread_get_stack_size)(drd_tid);
const SizeT used_stack
= (DRD_(thread_get_stack_max)(drd_tid)
- DRD_(thread_get_stack_min_min)(drd_tid));
VG_(message)(Vg_UserMsg,
"thread %d%s finished and used %ld bytes out of %ld"
" on its stack. Margin: %ld bytes.\n",
drd_tid,
DRD_(thread_get_joinable)(drd_tid)
? ""
: " (which is a detached thread)",
used_stack,
stack_size,
stack_size - used_stack);
}
drd_stop_using_mem(DRD_(thread_get_stack_min)(drd_tid),
DRD_(thread_get_stack_max)(drd_tid)
- DRD_(thread_get_stack_min)(drd_tid),
True);
DRD_(thread_set_record_loads)(drd_tid, False);
DRD_(thread_set_record_stores)(drd_tid, False);
DRD_(thread_finished)(drd_tid);
}
//
// Implementation of the tool interface.
//
static void DRD_(post_clo_init)(void)
{
#if defined(VGO_linux) || defined(VGO_darwin)
/* fine */
#else
VG_(printf)("\nWARNING: DRD has not yet been tested on this operating system.\n\n");
# endif
if (DRD_(s_var_info))
{
VG_(needs_var_info)();
}
}
static void drd_start_client_code(const ThreadId tid, const ULong bbs_done)
{
tl_assert(tid == VG_(get_running_tid)());
DRD_(thread_set_vg_running_tid)(tid);
}
static void DRD_(fini)(Int exitcode)
{
// thread_print_all();
if (VG_(clo_verbosity) == 1 && !VG_(clo_xml)) {
VG_(message)(Vg_UserMsg,
"For counts of detected and suppressed errors, "
"rerun with: -v\n");
}
if (VG_(clo_stats) || DRD_(s_print_stats))
{
ULong pu = DRD_(thread_get_update_conflict_set_count)();
ULong pu_seg_cr = DRD_(thread_get_update_conflict_set_new_sg_count)();
ULong pu_mtx_cv = DRD_(thread_get_update_conflict_set_sync_count)();
ULong pu_join = DRD_(thread_get_update_conflict_set_join_count)();
VG_(message)(Vg_UserMsg,
" thread: %lld context switches.\n",
DRD_(thread_get_context_switch_count)());
VG_(message)(Vg_UserMsg,
"confl set: %lld full updates and %lld partial updates;\n",
DRD_(thread_get_compute_conflict_set_count)(),
pu);
VG_(message)(Vg_UserMsg,
" %lld partial updates during segment creation,\n",
pu_seg_cr);
VG_(message)(Vg_UserMsg,
" %lld because of mutex/sema/cond.var. operations,\n",
pu_mtx_cv);
VG_(message)(Vg_UserMsg,
" %lld because of barrier/rwlock operations and\n",
pu - pu_seg_cr - pu_mtx_cv - pu_join);
VG_(message)(Vg_UserMsg,
" %lld partial updates because of thread join"
" operations.\n",
pu_join);
VG_(message)(Vg_UserMsg,
" segments: created %lld segments, max %lld alive,\n",
DRD_(sg_get_segments_created_count)(),
DRD_(sg_get_max_segments_alive_count)());
VG_(message)(Vg_UserMsg,
" %lld discard points and %lld merges.\n",
DRD_(thread_get_discard_ordered_segments_count)(),
DRD_(sg_get_segment_merge_count)());
VG_(message)(Vg_UserMsg,
"segmnt cr: %lld mutex, %lld rwlock, %lld semaphore and"
" %lld barrier.\n",
DRD_(get_mutex_segment_creation_count)(),
DRD_(get_rwlock_segment_creation_count)(),
DRD_(get_semaphore_segment_creation_count)(),
DRD_(get_barrier_segment_creation_count)());
VG_(message)(Vg_UserMsg,
" bitmaps: %lld level one"
" and %lld level two bitmaps were allocated.\n",
DRD_(bm_get_bitmap_creation_count)(),
DRD_(bm_get_bitmap2_creation_count)());
VG_(message)(Vg_UserMsg,
" mutex: %lld non-recursive lock/unlock events.\n",
DRD_(get_mutex_lock_count)());
DRD_(print_malloc_stats)();
}
}
static
void drd_pre_clo_init(void)
{
// Basic tool stuff.
VG_(details_name) ("drd");
VG_(details_version) (NULL);
VG_(details_description) ("a thread error detector");
VG_(details_copyright_author)("Copyright (C) 2006-2009, and GNU GPL'd,"
" by Bart Van Assche.");
VG_(details_bug_reports_to) (VG_BUGS_TO);
VG_(basic_tool_funcs) (DRD_(post_clo_init),
DRD_(instrument),
DRD_(fini));
// Command line stuff.
VG_(needs_command_line_options)(DRD_(process_cmd_line_option),
DRD_(print_usage),
DRD_(print_debug_usage));
// Error handling.
DRD_(register_error_handlers)();
// Core event tracking.
VG_(track_pre_mem_read) (drd_pre_mem_read);
VG_(track_pre_mem_read_asciiz) (drd_pre_mem_read_asciiz);
VG_(track_post_mem_write) (drd_post_mem_write);
VG_(track_new_mem_brk) (drd_start_using_mem_w_tid);
VG_(track_new_mem_mmap) (drd_start_using_mem_w_perms);
VG_(track_new_mem_stack) (drd_start_using_mem_stack);
VG_(track_new_mem_stack_signal) (drd_start_using_mem_stack_signal);
VG_(track_new_mem_startup) (drd_start_using_mem_w_perms);
VG_(track_die_mem_brk) (drd_stop_using_nonstack_mem);
VG_(track_die_mem_munmap) (drd_stop_using_nonstack_mem);
VG_(track_die_mem_stack) (drd_stop_using_mem_stack);
VG_(track_die_mem_stack_signal) (drd_stop_using_mem_stack_signal);
VG_(track_start_client_code) (drd_start_client_code);
VG_(track_pre_thread_ll_create) (drd_pre_thread_create);
VG_(track_pre_thread_first_insn)(drd_post_thread_create);
VG_(track_pre_thread_ll_exit) (drd_thread_finished);
// Other stuff.
DRD_(register_malloc_wrappers)(drd_start_using_mem_w_ecu,
drd_stop_using_nonstack_mem);
DRD_(clientreq_init)();
DRD_(suppression_init)();
DRD_(clientobj_init)();
{
Char* const smi = VG_(getenv)("DRD_SEGMENT_MERGING_INTERVAL");
if (smi)
DRD_(thread_set_segment_merge_interval)(VG_(strtoll10)(smi, NULL));
}
}
VG_DETERMINE_INTERFACE_VERSION(drd_pre_clo_init)
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