linux/arch/m32r
Christoph Hellwig e34112e396 m32r: use generic ptrace_resume code
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.

The old code only disables the breakpoints on PTRACE_KILL, while after
this patch this also happens for PTRACE_CONT and PTRACE_SYSCALL which
matches the behaviour of the other architetures.  I think this is a
bugfixes, but please double verify this is correct.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-12 15:52:39 -08:00
..
boot m32r: fix arch/m32r/boot/compressed/Makefile 2009-11-09 09:00:50 +09:00
configs
include/asm m32r: use generic ptrace_resume code 2010-03-12 15:52:39 -08:00
kernel m32r: use generic ptrace_resume code 2010-03-12 15:52:39 -08:00
lib m32r: export delay loop symbols 2009-10-04 12:02:36 +09:00
mm MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself 2010-02-20 16:41:46 +00:00
oprofile
platforms m32r: remove obsolete hw_interrupt_type 2009-06-16 19:47:46 -07:00
Kconfig m32r: bzip2/lzma kernel compression support 2009-11-04 08:37:33 +09:00
Kconfig.debug
Makefile