-/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2019 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#include "common-defs.h"
-#include "break-common.h"
+#include "gdbsupport/common-defs.h"
+#include "gdbsupport/break-common.h"
#include "nat/linux-nat.h"
#include "nat/aarch64-linux-hw-point.h"
#include "nat/aarch64-linux.h"
+#include "elf/common.h"
+#include "nat/gdb_ptrace.h"
+#include <asm/ptrace.h>
+#include <sys/uio.h>
+
/* Called when resuming a thread LWP.
The hardware debug registers are updated when there is any change. */
|| DR_HAS_CHANGED (info->dr_changed_wp))
{
ptid_t ptid = ptid_of_lwp (lwp);
- int tid = ptid_get_lwp (ptid);
+ int tid = ptid.lwp ();
struct aarch64_debug_reg_state *state
- = aarch64_get_debug_reg_state (ptid_get_pid (ptid));
+ = aarch64_get_debug_reg_state (ptid.pid ());
if (show_debug_regs)
debug_printf ("prepare_to_resume thread %d\n", tid);
void
aarch64_linux_new_thread (struct lwp_info *lwp)
{
- struct arch_lwp_info *info = XNEW (struct arch_lwp_info);
-
- /* Mark that all the hardware breakpoint/watchpoint register pairs
- for this thread need to be initialized (with data from
- aarch_process_info.debug_reg_state). */
- DR_MARK_ALL_CHANGED (info->dr_changed_bp, aarch64_num_bp_regs);
- DR_MARK_ALL_CHANGED (info->dr_changed_wp, aarch64_num_wp_regs);
+ ptid_t ptid = ptid_of_lwp (lwp);
+ struct aarch64_debug_reg_state *state
+ = aarch64_get_debug_reg_state (ptid.pid ());
+ struct arch_lwp_info *info = XCNEW (struct arch_lwp_info);
+
+ /* If there are hardware breakpoints/watchpoints in the process then mark that
+ all the hardware breakpoint/watchpoint register pairs for this thread need
+ to be initialized (with data from aarch_process_info.debug_reg_state). */
+ if (aarch64_linux_any_set_debug_regs_state (state, false))
+ DR_MARK_ALL_CHANGED (info->dr_changed_bp, aarch64_num_bp_regs);
+ if (aarch64_linux_any_set_debug_regs_state (state, true))
+ DR_MARK_ALL_CHANGED (info->dr_changed_wp, aarch64_num_wp_regs);
lwp_set_arch_private_info (lwp, info);
}
+/* See nat/aarch64-linux.h. */
+
+void
+aarch64_linux_delete_thread (struct arch_lwp_info *arch_lwp)
+{
+ xfree (arch_lwp);
+}
+
/* Convert native siginfo FROM to the siginfo in the layout of the
inferior's architecture TO. */
}
}
}
+
+/* Called by libthread_db. Returns a pointer to the thread local
+ storage (or its descriptor). */
+
+ps_err_e
+aarch64_ps_get_thread_area (struct ps_prochandle *ph,
+ lwpid_t lwpid, int idx, void **base,
+ int is_64bit_p)
+{
+ struct iovec iovec;
+ uint64_t reg64;
+ uint32_t reg32;
+
+ if (is_64bit_p)
+ {
+ iovec.iov_base = ®64;
+ iovec.iov_len = sizeof (reg64);
+ }
+ else
+ {
+ iovec.iov_base = ®32;
+ iovec.iov_len = sizeof (reg32);
+ }
+
+ if (ptrace (PTRACE_GETREGSET, lwpid, NT_ARM_TLS, &iovec) != 0)
+ return PS_ERR;
+
+ /* IDX is the bias from the thread pointer to the beginning of the
+ thread descriptor. It has to be subtracted due to implementation
+ quirks in libthread_db. */
+ if (is_64bit_p)
+ *base = (void *) (reg64 - idx);
+ else
+ *base = (void *) (uintptr_t) (reg32 - idx);
+
+ return PS_OK;
+}