/* Assumption: stacks grow downward. */
static __inline__
void drd_start_using_mem_stack(const Addr a, const SizeT len)
{
thread_set_stack_min(thread_get_running_tid(), a - VG_STACK_REDZONE_SZB);
drd_start_using_mem(a - VG_STACK_REDZONE_SZB,
len + VG_STACK_REDZONE_SZB);
}
static void drd_start_using_mem_stack_signal(
const Addr a, const SizeT len,
ThreadId tid_for_whom_the_signal_frame_is_being_constructed)
{
thread_set_vg_running_tid(VG_(get_running_tid)());
drd_start_using_mem(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_stack2(const DrdThreadId tid, const Addr a,
const SizeT len)
{
DRD_(thread_set_stack_min)(tid, a - VG_STACK_REDZONE_SZB);
drd_start_using_mem(a - VG_STACK_REDZONE_SZB, len + VG_STACK_REDZONE_SZB,
True);
}
static
void drd_start_using_mem_w_perms(const Addr a, const SizeT len,
const Bool rr, const Bool ww, const Bool xx)
{
thread_set_vg_running_tid(VG_(get_running_tid)());
drd_start_using_mem(a, len);
suppress_relocation_conflicts(a, len);
}
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);
}
static void drd_start_using_mem_w_tid(const Addr a1,
const SizeT len,
ThreadId tid)
{
drd_start_using_mem(a1, len);
}
static void drd_start_using_mem_w_ecu(const Addr a1,
const SizeT len,
UInt ec_uniq)
{
drd_start_using_mem(a1, len);
}
/**
* 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);
}
/**
* 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);
}
