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  1. 22 Jul, 2008 2 commits
  2. 18 Jul, 2008 1 commit
  3. 17 Apr, 2008 1 commit
  4. 30 Jan, 2008 1 commit
    • Roland McGrath's avatar
      x86 single_step: TIF_FORCED_TF · e1f28773
      Roland McGrath authored
      This changes the single-step support to use a new thread_info flag
      TIF_FORCED_TF instead of the PT_DTRACE flag in task_struct.ptrace.
      This keeps arch implementation uses out of this non-arch field.
      
      This changes the ptrace access to eflags to mask TF and maintain
      the TIF_FORCED_TF flag directly if userland sets TF, instead of
      relying on ptrace_signal_deliver.  The 64-bit and 32-bit kernels
      are harmonized on this same behavior.  The ptrace_signal_deliver
      approach works now, but this change makes the low-level register
      access code reliable when called from different contexts than a
      ptrace stop, which will be possible in the future.
      
      The 64-bit do_debug exception handler is also changed not to clear TF
      from user-mode registers.  This matches the 32-bit kernel's behavior.
      Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      e1f28773
  5. 23 Oct, 2007 1 commit
  6. 11 Oct, 2007 1 commit