diff options
| author | Christoph Hellwig <hch@lst.de> | 2010-03-11 02:22:56 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-13 02:52:39 +0300 |
| commit | 1bd095083558928cc3b36b826422d69bcd743dca (patch) | |
| tree | 5cfe9d39ac4da51e438dc87b6ef1203565ae21ac /arch/um/include | |
| parent | 55436c91652b45be576b91ec96a8d65f6b7447fa (diff) | |
| download | linux-1bd095083558928cc3b36b826422d69bcd743dca.tar.xz | |
um: 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.
XXX: I'm not sure arch_has_single_step() is placed in the exactly correct
location, please verify in which of the ptrace headers it should really
be.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/include')
| -rw-r--r-- | arch/um/include/asm/ptrace-generic.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h index 6c8899013c92..2cd899f75a3c 100644 --- a/arch/um/include/asm/ptrace-generic.h +++ b/arch/um/include/asm/ptrace-generic.h @@ -16,6 +16,8 @@ struct pt_regs { struct uml_pt_regs regs; }; +#define arch_has_single_step() (1) + #define EMPTY_REGS { .regs = EMPTY_UML_PT_REGS } #define PT_REGS_IP(r) UPT_IP(&(r)->regs) |