e34112e396
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> |
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| .. | ||
| Makefile | ||
| align.c | ||
| asm-offsets.c | ||
| entry.S | ||
| head.S | ||
| init_task.c | ||
| irq.c | ||
| m32r_ksyms.c | ||
| module.c | ||
| process.c | ||
| ptrace.c | ||
| setup.c | ||
| signal.c | ||
| smp.c | ||
| smpboot.c | ||
| sys_m32r.c | ||
| syscall_table.S | ||
| time.c | ||
| traps.c | ||
| vmlinux.lds.S | ||