mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-03 18:13:01 +00:00
b3827d6c33
__builtin_setjmp and __builtin_longjmp so that they can be selectively replaced, on a platform by platform basis. Does not change any functionality. Related to #259977. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11687
145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- The thread state. m_threadstate.c ---*/
|
|
/*--------------------------------------------------------------------*/
|
|
|
|
/*
|
|
This file is part of Valgrind, a dynamic binary instrumentation
|
|
framework.
|
|
|
|
Copyright (C) 2000-2010 Julian Seward
|
|
jseward@acm.org
|
|
|
|
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 "pub_core_basics.h"
|
|
#include "pub_core_vki.h"
|
|
#include "pub_core_libcsetjmp.h" // to keep _threadstate.h happy
|
|
#include "pub_core_threadstate.h"
|
|
#include "pub_core_libcassert.h"
|
|
|
|
/*------------------------------------------------------------*/
|
|
/*--- Data structures. ---*/
|
|
/*------------------------------------------------------------*/
|
|
|
|
ThreadId VG_(running_tid) = VG_INVALID_THREADID;
|
|
|
|
ThreadState VG_(threads)[VG_N_THREADS];
|
|
|
|
/*------------------------------------------------------------*/
|
|
/*--- Operations. ---*/
|
|
/*------------------------------------------------------------*/
|
|
|
|
const HChar* VG_(name_of_ThreadStatus) ( ThreadStatus status )
|
|
{
|
|
switch (status) {
|
|
case VgTs_Empty: return "VgTs_Empty";
|
|
case VgTs_Init: return "VgTs_Init";
|
|
case VgTs_Runnable: return "VgTs_Runnable";
|
|
case VgTs_WaitSys: return "VgTs_WaitSys";
|
|
case VgTs_Yielding: return "VgTs_Yielding";
|
|
case VgTs_Zombie: return "VgTs_Zombie";
|
|
default: return "VgTs_???";
|
|
}
|
|
}
|
|
|
|
ThreadState *VG_(get_ThreadState)(ThreadId tid)
|
|
{
|
|
vg_assert(tid >= 0 && tid < VG_N_THREADS);
|
|
vg_assert(VG_(threads)[tid].tid == tid);
|
|
return &VG_(threads)[tid];
|
|
}
|
|
|
|
Bool VG_(is_valid_tid) ( ThreadId tid )
|
|
{
|
|
/* tid is unsigned, hence no < 0 test. */
|
|
if (tid == 0) return False;
|
|
if (tid >= VG_N_THREADS) return False;
|
|
if (VG_(threads)[tid].status == VgTs_Empty) return False;
|
|
return True;
|
|
}
|
|
|
|
// This function is for tools to call.
|
|
ThreadId VG_(get_running_tid)(void)
|
|
{
|
|
return VG_(running_tid);
|
|
}
|
|
|
|
Bool VG_(is_running_thread)(ThreadId tid)
|
|
{
|
|
ThreadState *tst = VG_(get_ThreadState)(tid);
|
|
|
|
return
|
|
// tst->os_state.lwpid == VG_(gettid)() && // check we're this tid
|
|
VG_(running_tid) == tid && // and that we've got the lock
|
|
tst->status == VgTs_Runnable; // and we're runnable
|
|
}
|
|
|
|
/* Return true if the thread is still alive but in the process of exiting. */
|
|
inline Bool VG_(is_exiting)(ThreadId tid)
|
|
{
|
|
vg_assert(VG_(is_valid_tid)(tid));
|
|
return VG_(threads)[tid].exitreason != VgSrc_None;
|
|
}
|
|
|
|
/* Return the number of non-dead Threads */
|
|
Int VG_(count_living_threads)(void)
|
|
{
|
|
Int count = 0;
|
|
ThreadId tid;
|
|
|
|
for(tid = 1; tid < VG_N_THREADS; tid++)
|
|
if (VG_(threads)[tid].status != VgTs_Empty &&
|
|
VG_(threads)[tid].status != VgTs_Zombie)
|
|
count++;
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Return the number of threads in VgTs_Runnable state */
|
|
Int VG_(count_runnable_threads)(void)
|
|
{
|
|
Int count = 0;
|
|
ThreadId tid;
|
|
|
|
for(tid = 1; tid < VG_N_THREADS; tid++)
|
|
if (VG_(threads)[tid].status == VgTs_Runnable)
|
|
count++;
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Given an LWP id (ie, real kernel thread id), find the corresponding
|
|
ThreadId */
|
|
ThreadId VG_(lwpid_to_vgtid)(Int lwp)
|
|
{
|
|
ThreadId tid;
|
|
|
|
for(tid = 1; tid < VG_N_THREADS; tid++)
|
|
if (VG_(threads)[tid].status != VgTs_Empty
|
|
&& VG_(threads)[tid].os_state.lwpid == lwp)
|
|
return tid;
|
|
|
|
return VG_INVALID_THREADID;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- end ---*/
|
|
/*--------------------------------------------------------------------*/
|