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001 /* Copyright (C) 2005 David Decotigny 001 /* Copyright (C) 2005 David Decotigny 002 002 003 This program is free software; you can redi 003 This program is free software; you can redistribute it and/or 004 modify it under the terms of the GNU Genera 004 modify it under the terms of the GNU General Public License 005 as published by the Free Software Foundatio 005 as published by the Free Software Foundation; either version 2 006 of the License, or (at your option) any lat 006 of the License, or (at your option) any later version. 007 007 008 This program is distributed in the hope tha 008 This program is distributed in the hope that it will be useful, 009 but WITHOUT ANY WARRANTY; without even the 009 but WITHOUT ANY WARRANTY; without even the implied warranty of 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 011 GNU General Public License for more details 011 GNU General Public License for more details. 012 012 013 You should have received a copy of the GNU 013 You should have received a copy of the GNU General Public License 014 along with this program; if not, write to t 014 along with this program; if not, write to the Free Software 015 Foundation, Inc., 59 Temple Place - Suite 3 015 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 016 USA. 016 USA. 017 */ 017 */ 018 018 019 #include <crt.h> 019 #include <crt.h> 020 #include <libc.h> 020 #include <libc.h> 021 #include <stdarg.h> 021 #include <stdarg.h> 022 #include <debug.h> 022 #include <debug.h> 023 023 024 /** 024 /** 025 * @file myprog7.c !! 025 * @file myprog9.c 026 * 026 * 027 * mmap/munmap tests 027 * mmap/munmap tests 028 * 028 * 029 * We use the temporary syscall 4004 to dump t 029 * We use the temporary syscall 4004 to dump the list of VRs in the 030 * thread's address space 030 * thread's address space 031 */ 031 */ 032 032 033 int main() 033 int main() 034 { 034 { 035 char *zoup; 035 char *zoup; 036 036 037 zoup = mmap((void*)4096, 8*1024*1024, !! 037 zoup = fakemmap((void*)4096, 8*1024*1024, 038 PROT_READ | PROT_WRITE, !! 038 PROT_READ | PROT_WRITE, 039 MAP_SHARED, !! 039 MAP_SHARED, 040 "/dev/zero", 34); !! 040 "/dev/zero", 34); 041 bochs_printf("mapped @%x\n", (unsigned)zoup) 041 bochs_printf("mapped @%x\n", (unsigned)zoup); 042 042 043 /* Do a fork() here to complicate things */ 043 /* Do a fork() here to complicate things */ 044 fork(); 044 fork(); 045 fork(); 045 fork(); 046 046 047 _sos_syscall1(4004, (unsigned)"Initial"); 047 _sos_syscall1(4004, (unsigned)"Initial"); 048 munmap(zoup, 10*4096); 048 munmap(zoup, 10*4096); 049 zoup += 10*4096; 049 zoup += 10*4096; 050 _sos_syscall1(4004, (unsigned)"After munmap 050 _sos_syscall1(4004, (unsigned)"After munmap Low"); 051 051 052 munmap(zoup-4096, 2*4096); 052 munmap(zoup-4096, 2*4096); 053 zoup += 4096; 053 zoup += 4096; 054 _sos_syscall1(4004, (unsigned)"After munmap 054 _sos_syscall1(4004, (unsigned)"After munmap Before Low"); 055 055 056 munmap(zoup-4096, 4096); 056 munmap(zoup-4096, 4096); 057 _sos_syscall1(4004, (unsigned)"After munmap 057 _sos_syscall1(4004, (unsigned)"After munmap Before Low (bis)"); 058 058 059 munmap(zoup + 1024*1024, 4096); 059 munmap(zoup + 1024*1024, 4096); 060 _sos_syscall1(4004, (unsigned)"After munmap 060 _sos_syscall1(4004, (unsigned)"After munmap middle"); 061 061 062 munmap(zoup + 1024*1024, 4096); 062 munmap(zoup + 1024*1024, 4096); 063 _sos_syscall1(4004, (unsigned)"After munmap 063 _sos_syscall1(4004, (unsigned)"After munmap middle (bis)"); 064 064 065 munmap(zoup + 8*1024*1024 - 11*4096 - 4096, 065 munmap(zoup + 8*1024*1024 - 11*4096 - 4096, 4096); 066 _sos_syscall1(4004, (unsigned)"After munmap 066 _sos_syscall1(4004, (unsigned)"After munmap High"); 067 067 068 munmap(zoup + 8*1024*1024 - 11*4096 - 2*4096 068 munmap(zoup + 8*1024*1024 - 11*4096 - 2*4096, 3*4096); 069 _sos_syscall1(4004, (unsigned)"After munmap 069 _sos_syscall1(4004, (unsigned)"After munmap Past High"); 070 070 071 munmap((void*)0x40000000, 0x10000000); 071 munmap((void*)0x40000000, 0x10000000); 072 _sos_syscall1(4004, (unsigned)"After munmap 072 _sos_syscall1(4004, (unsigned)"After munmap Over everything"); 073 073 074 munmap((void*)0x40000000, 0x10000000); 074 munmap((void*)0x40000000, 0x10000000); 075 _sos_syscall1(4004, (unsigned)"After munmap 075 _sos_syscall1(4004, (unsigned)"After munmap Over everything (bis)"); 076 076 077 return 0; 077 return 0; 078 } 078 }
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