From 273d56ce89f26233cb7a703c542d2732adbea87d Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 9 May 1995 07:03:38 +0000 Subject: (__data_start): Define this symbol as the first thing in .data. --- hurd/hurdstartup.h | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 hurd/hurdstartup.h (limited to 'hurd/hurdstartup.h') diff --git a/hurd/hurdstartup.h b/hurd/hurdstartup.h new file mode 100644 index 0000000000..fd6a36605d --- /dev/null +++ b/hurd/hurdstartup.h @@ -0,0 +1,63 @@ +/* Data from initial program startup for running under the GNU Hurd. +Copyright (C) 1995 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#ifndef _HURDSTARTUP_H +#define _HURDSTARTUP_H 1 + + +/* 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) (int *data)); + + +#endif /* hurdstartup.h */ -- cgit v1.2.3