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authorYao Qi <yao@codesourcery.com>2014-01-30 10:09:11 +0800
committerYao Qi <yao@codesourcery.com>2014-02-05 19:37:25 +0800
commitde7b2893853cd1122b223a2023fdc35b41a26960 (patch)
treec4f54bbe1e43c85d47ed8ee7b2b63287146544fd /gdb/ctf.c
parent66d032ac625efa6a68403c4ec318264709a92302 (diff)
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Create inferior for ctf target.
This patch creates inferior when GDB opens a ctf trace data, to be consistent with tfile target. A test case is added to test for live target, tfile and ctf target. gdb: 2014-02-05 Yao Qi <yao@codesourcery.com> * ctf.c: Include "inferior.h" and "gdbthread.h". (CTF_PID): A new macro. (ctf_open): Call inferior_appeared and add_thread_silent. (ctf_close): Call exit_inferior_silent and set inferior_ptid. (ctf_thread_alive): New function. (init_ctf_ops): Install ctf_thread_alive to to_thread_alive. gdb/testsuite: 2014-02-05 Yao Qi <yao@codesourcery.com> * gdb.trace/report.exp (use_collected_data): Test the output of "info threads" and "info inferiors".
Diffstat (limited to 'gdb/ctf.c')
-rw-r--r--gdb/ctf.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/gdb/ctf.c b/gdb/ctf.c
index a22937f..6035c2b 100644
--- a/gdb/ctf.c
+++ b/gdb/ctf.c
@@ -26,6 +26,8 @@
#include <sys/stat.h>
#include "exec.h"
#include "completer.h"
+#include "inferior.h"
+#include "gdbthread.h"
#include <ctype.h>
@@ -76,6 +78,8 @@
#define CTF_EVENT_ID_TSV_DEF 5
#define CTF_EVENT_ID_TP_DEF 6
+#define CTF_PID (2)
+
/* The state kept while writing the CTF datastream file. */
struct trace_write_handler
@@ -1188,6 +1192,10 @@ ctf_open (char *dirname, int from_tty)
trace_dirname = xstrdup (dirname);
push_target (&ctf_ops);
+ inferior_appeared (current_inferior (), CTF_PID);
+ inferior_ptid = pid_to_ptid (CTF_PID);
+ add_thread_silent (inferior_ptid);
+
merge_uploaded_trace_state_variables (&uploaded_tsvs);
merge_uploaded_tracepoints (&uploaded_tps);
}
@@ -1198,10 +1206,16 @@ ctf_open (char *dirname, int from_tty)
static void
ctf_close (void)
{
+ int pid;
+
ctf_destroy ();
xfree (trace_dirname);
trace_dirname = NULL;
+ pid = ptid_get_pid (inferior_ptid);
+ inferior_ptid = null_ptid; /* Avoid confusion from thread stuff. */
+ exit_inferior_silent (pid);
+
trace_reset_local_state ();
}
@@ -1725,6 +1739,15 @@ ctf_has_registers (struct target_ops *ops)
return get_traceframe_number () != -1;
}
+/* This is the implementation of target_ops method to_thread_alive.
+ CTF trace data has one thread faked by GDB. */
+
+static int
+ctf_thread_alive (struct target_ops *ops, ptid_t ptid)
+{
+ return 1;
+}
+
/* This is the implementation of target_ops method to_traceframe_info.
Iterate the events whose name is "memory", in current
frame, extract memory range information, and return them in
@@ -1831,6 +1854,7 @@ Specify the filename of the CTF directory.";
ctf_ops.to_has_stack = ctf_has_stack;
ctf_ops.to_has_registers = ctf_has_registers;
ctf_ops.to_traceframe_info = ctf_traceframe_info;
+ ctf_ops.to_thread_alive = ctf_thread_alive;
ctf_ops.to_magic = OPS_MAGIC;
}