mirror of https://gitee.com/openkylin/linux.git
1d8393171b
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. Currently avr32 doesn't implement any code to disable single stepping when one of the non-syscall requests is called which seems wrong, but I've left it as-is for now. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Roland McGrath <roland@redhat.com> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|---|---|---|
| .. | ||
| .gitignore | ||
| Makefile | ||
| asm-offsets.c | ||
| avr32_ksyms.c | ||
| cpu.c | ||
| entry-avr32b.S | ||
| head.S | ||
| init_task.c | ||
| irq.c | ||
| kprobes.c | ||
| module.c | ||
| nmi_debug.c | ||
| ocd.c | ||
| process.c | ||
| ptrace.c | ||
| setup.c | ||
| signal.c | ||
| stacktrace.c | ||
| switch_to.S | ||
| sys_avr32.c | ||
| syscall-stubs.S | ||
| syscall_table.S | ||
| time.c | ||
| traps.c | ||
| vmlinux.lds.S | ||