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+/* Data from initial program startup for running under the GNU Hurd.
+ Copyright (C) 1995-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _HURDSTARTUP_H
+#define _HURDSTARTUP_H 1
+
+# include <stdint.h>
+
+/* Interesting data saved from the exec_startup reply.
+ The DATA argument to *MAIN (see below) points to:
+
+ int argc;
+ char *argv[argc];
+ char *argv_terminator = NULL;
+ char *envp[?];
+ char *envp_terminator = NULL;
+ struct hurd_startup_data data;
+
+*/
+
+struct hurd_startup_data
+ {
+ int flags;
+ mach_port_t *dtable;
+ mach_msg_type_number_t dtablesize;
+ mach_port_t *portarray;
+ mach_msg_type_number_t portarraysize;
+ int *intarray;
+ mach_msg_type_number_t intarraysize;
+ vm_address_t stack_base;
+ vm_size_t stack_size;
+ vm_address_t phdr;
+ vm_size_t phdrsz;
+ vm_address_t user_entry;
+ };
+
+
+/* Initialize Mach RPCs; do initial handshake with the exec server (or
+ extract the arguments from the stack in the case of the bootstrap task);
+ finally, call *MAIN with the information gleaned. That function is not
+ expected to return. ARGPTR should be the address of the first argument
+ of the entry point function that is called with the stack exactly as the
+ exec server or kernel sets it. */
+
+extern void _hurd_startup (void **argptr, void (*main) (intptr_t *data));
+
+
+#endif /* hurdstartup.h */