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64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Data from initial program startup for running under the GNU Hurd.
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Copyright (C) 1995-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _HURDSTARTUP_H
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#define _HURDSTARTUP_H 1
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# include <stdint.h>
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/* Interesting data saved from the exec_startup reply.
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The DATA argument to *MAIN (see below) points to:
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int argc;
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char *argv[argc];
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char *argv_terminator = NULL;
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char *envp[?];
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char *envp_terminator = NULL;
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struct hurd_startup_data data;
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*/
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struct hurd_startup_data
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{
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int flags;
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mach_port_t *dtable;
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mach_msg_type_number_t dtablesize;
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mach_port_t *portarray;
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mach_msg_type_number_t portarraysize;
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int *intarray;
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mach_msg_type_number_t intarraysize;
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vm_address_t stack_base;
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vm_size_t stack_size;
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vm_address_t phdr;
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vm_size_t phdrsz;
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vm_address_t user_entry;
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};
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/* Initialize Mach RPCs; do initial handshake with the exec server (or
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extract the arguments from the stack in the case of the bootstrap task);
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finally, call *MAIN with the information gleaned. That function is not
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expected to return. ARGPTR should be the address of the first argument
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of the entry point function that is called with the stack exactly as the
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exec server or kernel sets it. */
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extern void _hurd_startup (void **argptr, void (*main) (intptr_t *data));
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#endif /* hurdstartup.h */
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