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authorStan Shebs <shebs@codesourcery.com>1999-04-26 18:34:20 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-26 18:34:20 +0000
commit7a292a7adf506b866905b06b3024c0fd411c4583 (patch)
tree5b208bb48269b8a82d5c3a5f19c87b45a62a22f4 /gdb/target.c
parent1996fae84682e8ddd146215dd2959ad1ec924c09 (diff)
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import gdb-19990422 snapshot
Diffstat (limited to 'gdb/target.c')
-rw-r--r--gdb/target.c62
1 files changed, 47 insertions, 15 deletions
diff --git a/gdb/target.c b/gdb/target.c
index 808eb8f..bf9dc3b 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -208,15 +208,12 @@ static struct cmd_list_element *targetlist = NULL;
int attach_flag;
-#ifdef MAINTENANCE_CMDS
/* Non-zero if we want to see trace of target level stuff. */
static int targetdebug = 0;
static void setup_target_debug PARAMS ((void));
-#endif
-
/* The user just typed 'target' without the name of a target. */
/* ARGSUSED */
@@ -608,10 +605,8 @@ push_target (t)
cleanup_target (&current_target); /* Fill in the gaps */
-#ifdef MAINTENANCE_CMDS
if (targetdebug)
setup_target_debug ();
-#endif
return prev != 0;
}
@@ -1105,6 +1100,30 @@ return_one ()
return 1;
}
+/* Find a single runnable target in the stack and return it. If for
+ some reason there is more than one, return NULL. */
+
+struct target_ops *
+find_run_target ()
+{
+ struct target_ops **t;
+ struct target_ops *runable = NULL;
+ int count;
+
+ count = 0;
+
+ for (t = target_structs; t < target_structs + target_struct_size; ++t)
+ {
+ if ((*t)->to_can_run && target_can_run(*t))
+ {
+ runable = *t;
+ ++count;
+ }
+ }
+
+ return (count == 1 ? runable : NULL);
+}
+
struct target_ops *
find_core_target ()
{
@@ -1248,6 +1267,8 @@ static struct {
{"EXC_SOFTWARE", "Software generated exception"},
{"EXC_BREAKPOINT", "Breakpoint"},
#endif
+ {"SIGINFO", "Information request"},
+
{NULL, "Unknown signal"},
{NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
@@ -1260,7 +1281,10 @@ char *
target_signal_to_string (sig)
enum target_signal sig;
{
- return signals[sig].string;
+ if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST))
+ return signals[sig].string;
+ else
+ return signals[TARGET_SIGNAL_UNKNOWN].string;
}
/* Return the name for a signal. */
@@ -1466,6 +1490,10 @@ target_signal_from_host (hostsig)
if (hostsig == _NSIG + EXC_BREAKPOINT) return TARGET_EXC_BREAKPOINT;
#endif
+#if defined (SIGINFO)
+ if (hostsig == SIGINFO) return TARGET_SIGNAL_INFO;
+#endif
+
#if defined (REALTIME_LO)
if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
return (enum target_signal)
@@ -1640,6 +1668,10 @@ target_signal_to_host (oursig)
case TARGET_EXC_BREAKPOINT: return _NSIG + EXC_BREAKPOINT;
#endif
+#if defined (SIGINFO)
+ case TARGET_SIGNAL_INFO: return SIGINFO;
+#endif
+
default:
#if defined (REALTIME_LO)
if (oursig >= TARGET_SIGNAL_REALTIME_33
@@ -1768,7 +1800,6 @@ init_dummy_target ()
}
-#ifdef MAINTENANCE_CMDS
static struct target_ops debug_target;
static void
@@ -2308,7 +2339,8 @@ debug_to_has_execd (pid, execd_pathname)
has_execd = debug_target.to_has_execd (pid, execd_pathname);
fprintf_unfiltered (gdb_stderr, "target_has_execd (%d, %s) = %d\n",
- pid, *execd_pathname, has_execd);
+ pid, (*execd_pathname ? *execd_pathname : "<NULL>"),
+ has_execd);
return has_execd;
}
@@ -2447,19 +2479,21 @@ debug_to_enable_exception_callback (kind, enable)
enum exception_event_kind kind;
int enable;
{
- debug_target.to_enable_exception_callback (kind, enable);
-
+ struct symtab_and_line *result;
+ result = debug_target.to_enable_exception_callback (kind, enable);
fprintf_unfiltered (gdb_stderr,
"target get_exception_callback_sal (%d, %d)\n",
kind, enable);
+ return result;
}
static struct exception_event_record *
debug_to_get_current_exception_event ()
{
- debug_target.to_get_current_exception_event();
-
+ struct exception_event_record *result;
+ result = debug_target.to_get_current_exception_event();
fprintf_unfiltered (gdb_stderr, "target get_current_exception_event ()\n");
+ return result;
}
static char *
@@ -2551,7 +2585,7 @@ setup_target_debug ()
current_target.to_core_file_to_sym_file = debug_to_core_file_to_sym_file;
}
-#endif /* MAINTENANCE_CMDS */
+
static char targ_desc[] =
"Names of targets and files being debugged.\n\
@@ -2567,14 +2601,12 @@ initialize_targets ()
add_info ("target", target_info, targ_desc);
add_info ("files", target_info, targ_desc);
-#ifdef MAINTENANCE_CMDS
add_show_from_set (
add_set_cmd ("targetdebug", class_maintenance, var_zinteger,
(char *)&targetdebug,
"Set target debugging.\n\
When non-zero, target debugging is enabled.", &setlist),
&showlist);
-#endif
if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
abort ();