Import initial work of libpthread debugging. This is a debugger independent

friend library for libpthread, the library will be used by debugger to
read/write libpthread's internal data structures.

1 files changed, 68 insertions, 0 deletions

diff --git a/lib/libpthread_dbg/pthread_dbg_int.h b/lib/libpthread_dbg/pthread_dbg_int.h
new file mode 100644
index 0000000..b6c4e3d
--- /dev/null
+++ b/lib/libpthread_dbg/pthread_dbg_int.h
@@ -0,0 +1,68 @@
+/*
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _PTHREAD_DBG_INT_H
+#define _PTHREAD_DBG_INT_H
+
+#include <sys/queue.h>
+#include <sys/ucontext.h>
+
+struct td_proc {
+	td_proc_callbacks_t		*cb;
+	void				*arg;
+	pid_t				pid;
+	caddr_t				libkse_debug_addr;
+	caddr_t				thread_list_addr;
+	caddr_t				thread_listgen_addr;
+	caddr_t				thread_activated_addr;
+	caddr_t				thread_active_kseq_addr;
+	int				thread_activated;
+	int				thread_listgen;
+	TAILQ_HEAD(, td_thread)		threads;
+};
+
+struct td_thread {
+        td_proc_t	*proc;
+        caddr_t		addr;
+	caddr_t		tcb_addr;
+        void		*kthread;
+	int		type;
+	int		step;
+        TAILQ_ENTRY(td_thread) tle;
+};
+
+#define READ(proc, addr, buf, size) ((proc)->cb->proc_read((proc)->arg, (addr), (buf), (size)))
+#define READ_STRING(proc, addr, buf, size) ((proc)->cb->proc_read((proc)->arg, (addr), (buf), (size)))
+#define WRITE(proc, addr, buf, size) ((proc)->cb->proc_write((proc)->arg, (addr), (buf), (size)))
+#define LOOKUP(proc, sym, addr) ((proc)->cb->proc_lookup((proc)->arg, (sym), (addr)))
+#define GETREGS(proc, regset, lwp, buf) ((proc)->cb->proc_getregs((proc)->arg, (regset), (lwp), (buf)))
+#define SETREGS(proc, regset, lwp, buf) ((proc)->cb->proc_setregs((proc)->arg, (regset), (lwp), (buf)))
+#define SSTEP(proc, lwp, on) ((proc)->cb->proc_sstep((proc)->arg, (lwp), (on)))
+
+#endif
+