1 files changed, 263 insertions, 0 deletions
diff --git a/lib/libthread_db/thread_db.c b/lib/libthread_db/thread_db.c
new file mode 100644
index 0000000..45400bf
--- /dev/null
+++ b/lib/libthread_db/thread_db.c
@@ -0,0 +1,263 @@
+/*
+ * Copyright (c) 2004 David Xu <davidxu@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <proc_service.h>
+#include <stddef.h>
+#include <thread_db.h>
+#include <unistd.h>
+
+#include "thread_db_int.h"
+
+struct td_thragent 
+{
+	TD_THRAGENT_FIELDS;
+};
+
+static TAILQ_HEAD(, td_thragent) proclist = TAILQ_HEAD_INITIALIZER(proclist);
+
+extern struct ta_ops libc_r_db_ops;
+extern struct ta_ops libpthread_db_ops;
+extern struct ta_ops libthr_db_ops;
+
+static struct ta_ops *ops[] = {
+	&libpthread_db_ops,
+	&libthr_db_ops,
+	&libc_r_db_ops
+};
+
+td_err_e
+td_init(void)
+{
+	td_err_e ret, tmp;
+	size_t i;
+
+	ret = 0;
+	for (i = 0; i < sizeof(ops)/sizeof(ops[0]); i++) {
+		if (ops[i]->to_init != NULL) {
+			tmp = ops[i]->to_init();
+			if (tmp != TD_OK)
+				ret = tmp;
+		}
+	}
+	return (ret);
+}
+
+td_err_e
+td_ta_clear_event(const td_thragent_t *ta, td_thr_events_t *events)
+{
+	return (ta->ta_ops->to_ta_clear_event(ta, events));
+}
+
+td_err_e
+td_ta_delete(td_thragent_t *ta)
+{
+	TAILQ_REMOVE(&proclist, ta, ta_next);
+	return (ta->ta_ops->to_ta_delete(ta));
+}
+
+td_err_e
+td_ta_event_addr(const td_thragent_t *ta, td_event_e event, td_notify_t *ptr)
+{
+	return (ta->ta_ops->to_ta_event_addr(ta, event, ptr));
+}
+
+td_err_e
+td_ta_event_getmsg(const td_thragent_t *ta, td_event_msg_t *msg)
+{
+	return (ta->ta_ops->to_ta_event_getmsg(ta, msg));
+}
+
+td_err_e
+td_ta_map_id2thr(const td_thragent_t *ta, thread_t id, td_thrhandle_t *th)
+{
+	return (ta->ta_ops->to_ta_map_id2thr(ta, id, th));
+}
+
+td_err_e
+td_ta_map_lwp2thr(const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th)
+{
+	return (ta->ta_ops->to_ta_map_lwp2thr(ta, lwpid, th));
+}
+
+td_err_e
+td_ta_new(struct ps_prochandle *ph, td_thragent_t **pta)
+{
+	size_t i;
+
+	for (i = 0; i < sizeof(ops)/sizeof(ops[0]); ++i) {
+		if (ops[i]->to_ta_new(ph, pta) == TD_OK) {
+			TAILQ_INSERT_HEAD(&proclist, *pta, ta_next);
+			(*pta)->ta_ops = ops[i];
+			return (TD_OK);
+		}
+	}
+	return (TD_NOLIBTHREAD);
+}
+
+td_err_e
+td_ta_set_event(const td_thragent_t *ta, td_thr_events_t *events)
+{
+	return (ta->ta_ops->to_ta_set_event(ta, events));
+}
+
+td_err_e
+td_ta_thr_iter(const td_thragent_t *ta, td_thr_iter_f *callback,
+    void *cbdata_p, td_thr_state_e state, int ti_pri, sigset_t *ti_sigmask_p,
+    unsigned int ti_user_flags)
+{
+	return (ta->ta_ops->to_ta_thr_iter(ta, callback, cbdata_p, state,
+		    ti_pri, ti_sigmask_p, ti_user_flags));
+}
+
+td_err_e
+td_ta_tsd_iter(const td_thragent_t *ta, td_key_iter_f *callback,
+    void *cbdata_p)
+{
+	return (ta->ta_ops->to_ta_tsd_iter(ta, callback, cbdata_p));
+}
+
+td_err_e
+td_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *events)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_clear_event(th, events));
+}
+
+td_err_e
+td_thr_dbresume(const td_thrhandle_t *th)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_dbresume(th));
+}
+
+td_err_e
+td_thr_dbsuspend(const td_thrhandle_t *th)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_dbsuspend(th));
+}
+
+td_err_e
+td_thr_event_enable(const td_thrhandle_t *th, int en)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_event_enable(th, en));
+}
+
+td_err_e
+td_thr_event_getmsg(const td_thrhandle_t *th, td_event_msg_t *msg)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_event_getmsg(th, msg));
+}
+
+td_err_e
+td_thr_get_info(const td_thrhandle_t *th, td_thrinfo_t *info)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_get_info(th, info));
+}
+
+#ifdef __i386__
+td_err_e
+td_thr_getxmmregs(const td_thrhandle_t *th, char *fxsave)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_getxmmregs(th, fxsave));
+}
+#endif
+
+
+td_err_e
+td_thr_getfpregs(const td_thrhandle_t *th, prfpregset_t *fpregset)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_getfpregs(th, fpregset));
+}
+
+td_err_e
+td_thr_getgregs(const td_thrhandle_t *th, prgregset_t gregs)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_getgregs(th, gregs));
+}
+
+td_err_e
+td_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *events)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_set_event(th, events));
+}
+
+#ifdef __i386__
+td_err_e
+td_thr_setxmmregs(const td_thrhandle_t *th, const char *fxsave)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_setxmmregs(th, fxsave));
+}
+#endif
+
+td_err_e
+td_thr_setfpregs(const td_thrhandle_t *th, const prfpregset_t *fpregs)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_setfpregs(th, fpregs));
+}
+
+td_err_e
+td_thr_setgregs(const td_thrhandle_t *th, const prgregset_t gregs)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_setgregs(th, gregs));
+}
+
+td_err_e
+td_thr_validate(const td_thrhandle_t *th)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_validate(th));
+}
+
+td_err_e
+td_thr_tls_get_addr(const td_thrhandle_t *th, void *linkmap, size_t offset,
+		    void **address)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_tls_get_addr(th, linkmap, offset, address));
+}
+
+/* FreeBSD specific extensions. */
+
+td_err_e
+td_thr_sstep(const td_thrhandle_t *th, int step)
+{
+	const td_thragent_t *ta = th->th_ta;
+	return (ta->ta_ops->to_thr_sstep(th, step));
+}