FreeChainXenon/binutils-gdb
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* linux-low.c (linux_enable_event_reporting): New.

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(linux_wait_for_event_1, handle_extended_wait): Use it.
This commit is contained in:
Pedro Alves 2010-05-01 15:46:26 +00:00
parent 6f6dbfc4bc
commit 1e7fc18c9c
2 changed files with 17 additions and 3 deletions
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5
gdb/gdbserver/ChangeLog
View file

@ -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> 2010-04-30 Pedro Alves <pedro@codesourcery.com>
* linux-low.c (linux_kill_one_lwp, linux_kill) * linux-low.c (linux_kill_one_lwp, linux_kill)

15
gdb/gdbserver/linux-low.c
View file

@ -150,6 +150,7 @@ static void unstop_all_lwps (struct lwp_info *except);
static int finish_step_over (struct lwp_info *lwp); static int finish_step_over (struct lwp_info *lwp);
static CORE_ADDR get_stop_pc (struct lwp_info *lwp); static CORE_ADDR get_stop_pc (struct lwp_info *lwp);
static int kill_lwp (unsigned long lwpid, int signo); 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 /* True if the low target can hardware single-step. Such targets
don't need a BREAKPOINT_REINSERT_ADDR callback. */ 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); 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); ptid = ptid_build (pid_of (event_child), new_pid, 0);
new_lwp = (struct lwp_info *) add_lwp (ptid); 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) if (event_child->must_set_ptrace_flags)
{ {
ptrace (PTRACE_SETOPTIONS, lwpid_of (event_child), linux_enable_event_reporting (lwpid_of (event_child));
0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE);
event_child->must_set_ptrace_flags = 0; 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. */ /* Non-zero if the kernel supports PTRACE_O_TRACEFORK. */
static int linux_supports_tracefork_flag; 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 (). */ /* Helper functions for linux_test_for_tracefork, called via clone (). */
static int static int