Add rudimentary support and stubs for libthr and libc_r on alpha, amd64,

i386, ia64 and sparc64. Add stubs for alpha, amd64, ia64 and sparc64 for
libpthread.

Restructure the source files to avoid unnecessary use of subdirectories
that also force us to use non-portable compilation flags to deal with
the uncommon compilation requirements (building archive libraries for
linkage into a shared library).

The libpthread support has been copied from the original local and
cleaned-up to make them WARNS=2 clean.
that also force us to use non-portable compilation flags to deal with
the uncommon compilation requirements (building archive libraries for
linkage into a shared library).

The libpthread support has been copied from the original local and
cleaned-up to make them WARNS=2 clean.

Tested on: amd64, i386, ia64

1 files changed, 70 insertions, 0 deletions

diff --git a/lib/libthread_db/libpthread_db.h b/lib/libthread_db/libpthread_db.h
new file mode 100644
index 0000000..397ec72
--- /dev/null
+++ b/lib/libthread_db/libpthread_db.h
@@ -0,0 +1,70 @@
+/*
+ * 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 _LIBPTHREAD_DB_H_
+#define	_LIBPTHREAD_DB_H_
+
+#include <sys/ucontext.h>
+#include <machine/reg.h>
+
+#include "thread_db_int.h"
+
+struct pt_map {
+	enum {
+		PT_NONE,
+		PT_USER,
+		PT_LWP
+	} type;
+
+	union {
+		lwpid_t		lwp;
+		psaddr_t	thr;
+	};
+};
+
+struct td_thragent {
+	TD_THRAGENT_FIELDS;
+	psaddr_t	libkse_debug_addr;
+	psaddr_t	thread_list_addr;
+	psaddr_t	thread_listgen_addr;
+	psaddr_t	thread_activated_addr;
+	psaddr_t	thread_active_threads_addr;
+	psaddr_t	thread_keytable_addr;
+	int		thread_activated;
+	struct pt_map	*map;
+	int		map_len;
+};
+
+void pt_md_init(void);
+void pt_reg_to_ucontext(const struct reg *, ucontext_t *);
+void pt_ucontext_to_reg(const ucontext_t *, struct reg *);
+void pt_fpreg_to_ucontext(const struct fpreg *, ucontext_t *);
+void pt_ucontext_to_fpreg(const ucontext_t *, struct fpreg *);
+int  pt_reg_sstep(struct reg *reg, int step);
+
+#endif /* _LIBPTHREAD_DB_H_ */