| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Data from initial program startup for running under the GNU Hurd. |
| 2 | Copyright (C) 1995-2016 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _HURDSTARTUP_H |
| 20 | #define _HURDSTARTUP_H 1 |
| 21 | |
| 22 | # include <stdint.h> |
| 23 | |
| 24 | /* Interesting data saved from the exec_startup reply. |
| 25 | The DATA argument to *MAIN (see below) points to: |
| 26 | |
| 27 | int argc; |
| 28 | char *argv[argc]; |
| 29 | char *argv_terminator = NULL; |
| 30 | char *envp[?]; |
| 31 | char *envp_terminator = NULL; |
| 32 | struct hurd_startup_data data; |
| 33 | |
| 34 | */ |
| 35 | |
| 36 | struct hurd_startup_data |
| 37 | { |
| 38 | int flags; |
| 39 | mach_port_t *dtable; |
| 40 | mach_msg_type_number_t dtablesize; |
| 41 | mach_port_t *portarray; |
| 42 | mach_msg_type_number_t portarraysize; |
| 43 | int *intarray; |
| 44 | mach_msg_type_number_t intarraysize; |
| 45 | vm_address_t stack_base; |
| 46 | vm_size_t stack_size; |
| 47 | vm_address_t phdr; |
| 48 | vm_size_t phdrsz; |
| 49 | vm_address_t user_entry; |
| 50 | }; |
| 51 | |
| 52 | |
| 53 | /* Initialize Mach RPCs; do initial handshake with the exec server (or |
| 54 | extract the arguments from the stack in the case of the bootstrap task); |
| 55 | finally, call *MAIN with the information gleaned. That function is not |
| 56 | expected to return. ARGPTR should be the address of the first argument |
| 57 | of the entry point function that is called with the stack exactly as the |
| 58 | exec server or kernel sets it. */ |
| 59 | |
| 60 | extern void _hurd_startup (void **argptr, void (*main) (intptr_t *data)); |
| 61 | |
| 62 | |
| 63 | #endif /* hurdstartup.h */ |