/* GNU/Linux on ARM native support.
- Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009,
- 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1999-2013 Free Software Foundation, Inc.
This file is part of GDB.
individual thread (process) ID. get_thread_id () is used to get
the thread id if it's available, and the process id otherwise. */
-int
+static int
get_thread_id (ptid_t ptid)
{
int tid = TIDGET (ptid);
/* We have to create a mask for the control register which says which bits
of the word pointed to by address to break on. */
if (arm_pc_is_thumb (gdbarch, address))
- mask = 0x3 << (address & 2);
+ {
+ mask = 0x3;
+ address &= ~1;
+ }
else
- mask = 0xf;
+ {
+ mask = 0xf;
+ address &= ~3;
+ }
- p->address = (unsigned int) (address & ~3);
+ p->address = (unsigned int) address;
p->control = arm_hwbp_control_initialize (mask, arm_hwbp_break, 1);
}
static int
arm_linux_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p)
{
- struct siginfo *siginfo_p = linux_nat_get_siginfo (inferior_ptid);
- int slot = siginfo_p->si_errno;
+ siginfo_t siginfo;
+ int slot;
+
+ if (!linux_nat_get_siginfo (inferior_ptid, &siginfo))
+ return 0;
/* This must be a hardware breakpoint. */
- if (siginfo_p->si_signo != SIGTRAP
- || (siginfo_p->si_code & 0xffff) != 0x0004 /* TRAP_HWBKPT */)
+ if (siginfo.si_signo != SIGTRAP
+ || (siginfo.si_code & 0xffff) != 0x0004 /* TRAP_HWBKPT */)
return 0;
/* We must be able to set hardware watchpoints. */
if (arm_linux_get_hw_watchpoint_count () == 0)
return 0;
+ slot = siginfo.si_errno;
+
/* If we are in a positive slot then we're looking at a breakpoint and not
a watchpoint. */
if (slot >= 0)
return 0;
- *addr_p = (CORE_ADDR) (uintptr_t) siginfo_p->si_addr;
+ *addr_p = (CORE_ADDR) (uintptr_t) siginfo.si_addr;
return 1;
}
/* Handle thread creation. We need to copy the breakpoints and watchpoints
in the parent thread to the child thread. */
static void
-arm_linux_new_thread (ptid_t ptid)
+arm_linux_new_thread (struct lwp_info *lp)
{
- int tid = TIDGET (ptid);
+ int tid = TIDGET (lp->ptid);
const struct arm_linux_hwbp_cap *info = arm_linux_get_hwbp_cap ();
if (info != NULL)