hurd: Avoid some libc.so PLTs

	* hurd/catch-signal.c (hurd_catch_signal): Rename to
	__hurd_catch_signal.
	(hurd_catch_signal): New strong alias.
	(hurd_safe_memset, hurd_safe_copyout, hurd_safe_copyin): Call
	__hurd_catch_signal instead of hurd_catch_signal.
	* hurd/exc2signal.c (_hurd_exception2signal): Add hidden def.
	* hurd/hurdexec.c (_hurd_init): Add hidden def.
	* hurd/hurdinit.c (_hurd_init): Add hidden def.
	* hurd/hurdsig.c: Include <mach/mig_support.h>.
	(_hurd_thread_sigstate): Add hidden def.
	(_hurd_internal_post_signal): Use __mutex_unlock instead of
	mutex_unlock.
	* hurd/intern-fd.c (_hurd_intern_fd): Add hidden def.
	* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): Add hidden def.
	* hurd/path-lookup.c (hurd_file_name_path_lookup): Rename to
	__hurd_file_name_path_lookup.
	(hurd_file_name_path_lookup): New strong alias.
	(file_name_path_lookup): Call __hurd_file_name_path_lookup instead of
	hurd_file_name_path_lookup.
	* mach/errstring.c (mach_error_type): Add hidden def.
	* mach/msg-destroy.c (__mach_msg_destroy): Add hidden def.
	* mach/mutex-init.c (__mutex_init): Add hidden def.
	* mach/spin-lock.c (__spin_lock_locked, __spin_lock, __spin_unlock,
	__spin_try_lock, __mutex_lock, __mutex_trylock): Add hidden defs.
	* mach/spin-solid.c (__spin_lock_solid): Add hidden def.
	* sysdeps/mach/hurd/getcwd.c
	(_hurd_canonicalize_directory_name_internal): Rename to
	__hurd_canonicalize_directory_name_internal.
	(_hurd_canonicalize_directory_name_internal): New strong alias.
	(__canonicalize_directory_name_internal, __getcwd): Call
	__hurd_canonicalize_directory_name_internal instead of
	_hurd_canonicalize_directory_name_internal.
	* sysdeps/mach/hurd/mig-reply.c: Include <mach/mig_support.h>.
	(__mig_get_reply_port, __mig_dealloc_reply_port, __mig_init): Add
	hidden defs.
	* sysdeps/hurd/include/hurd.h: New file.
	* sysdeps/hurd/include/hurd/fd.h: New file.
	* sysdeps/hurd/include/hurd/signal.h: New file.
	* sysdeps/mach/include/lock-intern.h: New file.
	* sysdeps/mach/include/mach.h: New file.
	* sysdeps/mach/include/mach/mig_support.h: New file.
	* sysdeps/mach/include/mach_error.h: New file.

4 files changed, 26 insertions, 0 deletions

diff --git a/sysdeps/mach/include/lock-intern.h b/sysdeps/mach/include/lock-intern.h
new file mode 100644
index 0000000000..d0767ab37b
--- /dev/null
+++ b/sysdeps/mach/include/lock-intern.h
@@ -0,0 +1,12 @@
+#ifndef _LOCK_INTERN_H
+#include <mach/lock-intern.h>
+libc_hidden_proto (__spin_lock_locked)
+libc_hidden_proto (__spin_lock)
+libc_hidden_proto (__spin_lock_solid)
+libc_hidden_proto (__spin_unlock)
+libc_hidden_proto (__spin_try_lock)
+libc_hidden_proto (__mutex_init)
+libc_hidden_proto (__mutex_lock)
+libc_hidden_proto (__mutex_unlock)
+libc_hidden_proto (__mutex_trylock)
+#endif
diff --git a/sysdeps/mach/include/mach.h b/sysdeps/mach/include/mach.h
new file mode 100644
index 0000000000..1f77100b6e
--- /dev/null
+++ b/sysdeps/mach/include/mach.h
@@ -0,0 +1,4 @@
+#ifndef	_MACH_H
+#include_next <mach.h>
+libc_hidden_proto (__mach_msg_destroy)
+#endif
diff --git a/sysdeps/mach/include/mach/mig_support.h b/sysdeps/mach/include/mach/mig_support.h
new file mode 100644
index 0000000000..7b9015d7e7
--- /dev/null
+++ b/sysdeps/mach/include/mach/mig_support.h
@@ -0,0 +1,6 @@
+#ifndef _MACH_MIG_SUPPORT_H
+#include_next <mach/mig_support.h>
+libc_hidden_proto (__mig_get_reply_port)
+libc_hidden_proto (__mig_dealloc_reply_port)
+libc_hidden_proto (__mig_init)
+#endif
diff --git a/sysdeps/mach/include/mach_error.h b/sysdeps/mach/include/mach_error.h
new file mode 100644
index 0000000000..91463eb672
--- /dev/null
+++ b/sysdeps/mach/include/mach_error.h
@@ -0,0 +1,4 @@
+#ifndef	_MACH_ERROR_
+#include_next <mach_error.h>
+libc_hidden_proto (mach_error_type)
+#endif