• Christoph Hellwig's avatar
    alpha: use generic ptrace_resume code · fd341abb
    Christoph Hellwig authored
    Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT,
    PTRACE_KILL and PTRACE_SINGLESTEP.  This implies defining
    arch_has_single_step in <asm/ptrace.h> and implementing the
    user_enable_single_step and user_disable_single_step functions, which also
    causes the breakpoint information to be cleared on fork, which could be
    considered a bug fix.
    
    Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which
    it previously wasn't, which is consistent with all architectures using the
    modern ptrace code.
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Cc: Oleg Nesterov <oleg@redhat.com>
    Cc: Roland McGrath <roland@redhat.com>
    Acked-by: default avatarMatt Turner <mattst88@gmail.com>
    Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
    Cc: Richard Henderson <rth@twiddle.net>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    fd341abb
ptrace.c 9 KB