Add a new debug knob for the FreeBSD native target.

[deliverable/binutils-gdb.git] / gdb / fbsd-nat.c

diff --git a/gdb/fbsd-nat.c b/gdb/fbsd-nat.c
index 3a216abf186f48247681945368ab9f40931e79cb..2516ac5552940cfa4b16ed74772ef79d234e5631 100644 (file)
--- a/gdb/fbsd-nat.c
+++ b/gdb/fbsd-nat.c
@@ -765,6 +765,7 @@ fbsd_xfer_partial (struct target_ops *ops, enum target_object object,
 
 #ifdef PT_LWPINFO
 static int debug_fbsd_lwp;
+static int debug_fbsd_nat;
 
 static void (*super_resume) (struct target_ops *,
                             ptid_t,
@@ -782,6 +783,14 @@ show_fbsd_lwp_debug (struct ui_file *file, int from_tty,
   fprintf_filtered (file, _("Debugging of FreeBSD lwp module is %s.\n"), value);
 }
 
+static void
+show_fbsd_nat_debug (struct ui_file *file, int from_tty,
+                    struct cmd_list_element *c, const char *value)
+{
+  fprintf_filtered (file, _("Debugging of FreeBSD native target is %s.\n"),
+                   value);
+}
+
 /*
   FreeBSD's first thread support was via a "reentrant" version of libc
   (libc_r) that first shipped in 2.2.7.  This library multiplexed all
@@ -1212,6 +1221,18 @@ fbsd_wait (struct target_ops *ops,
 
          wptid = ptid_build (pid, pl.pl_lwpid, 0);
 
+         if (debug_fbsd_nat)
+           {
+             fprintf_unfiltered (gdb_stdlog,
+                                 "FNAT: stop for LWP %u event %d flags %#x\n",
+                                 pl.pl_lwpid, pl.pl_event, pl.pl_flags);
+             if (pl.pl_flags & PL_FLAG_SI)
+               fprintf_unfiltered (gdb_stdlog,
+                                   "FNAT: si_signo %u si_code %u\n",
+                                   pl.pl_siginfo.si_signo,
+                                   pl.pl_siginfo.si_code);
+           }
+
 #ifdef PT_LWP_EVENTS
          if (pl.pl_flags & PL_FLAG_EXITED)
            {
@@ -1569,5 +1590,13 @@ Enables printf debugging output."),
                           NULL,
                           &show_fbsd_lwp_debug,
                           &setdebuglist, &showdebuglist);
+  add_setshow_boolean_cmd ("fbsd-nat", class_maintenance,
+                          &debug_fbsd_nat, _("\
+Set debugging of FreeBSD native target."), _("\
+Show debugging of FreeBSD native target."), _("\
+Enables printf debugging output."),
+                          NULL,
+                          &show_fbsd_nat_debug,
+                          &setdebuglist, &showdebuglist);
 #endif
 }