diff options
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/gdbserver/linux-low.c | 15 |
2 files changed, 17 insertions, 3 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index 4e95c4f..15f2176 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,8 @@ +2010-05-01 Pedro Alves <pedro@codesourcery.com> + + * linux-low.c (linux_enable_event_reporting): New. + (linux_wait_for_event_1, handle_extended_wait): Use it. + 2010-04-30 Pedro Alves <pedro@codesourcery.com> * linux-low.c (linux_kill_one_lwp, linux_kill) diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c index 3954d2d..302f702 100644 --- a/gdb/gdbserver/linux-low.c +++ b/gdb/gdbserver/linux-low.c @@ -150,6 +150,7 @@ static void unstop_all_lwps (struct lwp_info *except); static int finish_step_over (struct lwp_info *lwp); static CORE_ADDR get_stop_pc (struct lwp_info *lwp); static int kill_lwp (unsigned long lwpid, int signo); +static void linux_enable_event_reporting (int pid); /* True if the low target can hardware single-step. Such targets don't need a BREAKPOINT_REINSERT_ADDR callback. */ @@ -396,7 +397,7 @@ handle_extended_wait (struct lwp_info *event_child, int wstat) warning ("wait returned unexpected status 0x%x", status); } - ptrace (PTRACE_SETOPTIONS, new_pid, 0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE); + linux_enable_event_reporting (new_pid); ptid = ptid_build (pid_of (event_child), new_pid, 0); new_lwp = (struct lwp_info *) add_lwp (ptid); @@ -1318,8 +1319,7 @@ linux_wait_for_event_1 (ptid_t ptid, int *wstat, int options) if (event_child->must_set_ptrace_flags) { - ptrace (PTRACE_SETOPTIONS, lwpid_of (event_child), - 0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE); + linux_enable_event_reporting (lwpid_of (event_child)); event_child->must_set_ptrace_flags = 0; } @@ -3415,6 +3415,15 @@ linux_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len) /* Non-zero if the kernel supports PTRACE_O_TRACEFORK. */ static int linux_supports_tracefork_flag; +static void +linux_enable_event_reporting (int pid) +{ + if (!linux_supports_tracefork_flag) + return; + + ptrace (PTRACE_SETOPTIONS, pid, 0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE); +} + /* Helper functions for linux_test_for_tracefork, called via clone (). */ static int |