| main.c (39178) | main.c (39441) |
|---|---|
| 1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $Id: main.c,v 1.3 1998/09/03 02:10:09 msmith Exp $ | 26 * $Id: main.c,v 1.4 1998/09/14 18:27:06 msmith Exp $ |
| 27 */ 28 29/* 30 * MD bootstrap main() and assorted miscellaneous 31 * commands. 32 */ 33 34#include <stand.h> 35#include <string.h> 36 37#include "bootstrap.h" 38#include "libi386/libi386.h" | 27 */ 28 29/* 30 * MD bootstrap main() and assorted miscellaneous 31 * commands. 32 */ 33 34#include <stand.h> 35#include <string.h> 36 37#include "bootstrap.h" 38#include "libi386/libi386.h" |
| 39#include "btxv86.h" |
|
| 39 | 40 |
| 40extern int boot_biosdev; /* from runtime startup */ 41 | |
| 42struct arch_switch archsw; /* MI/MD interface boundary */ 43 44/* from vers.c */ 45extern char bootprog_name[], bootprog_rev[], bootprog_date[], bootprog_maker[]; 46 47/* XXX debugging */ | 41struct arch_switch archsw; /* MI/MD interface boundary */ 42 43/* from vers.c */ 44extern char bootprog_name[], bootprog_rev[], bootprog_date[], bootprog_maker[]; 45 46/* XXX debugging */ |
| 48#include "libi386/crt/diskbuf.h" 49extern char stackbase, stacktop; | |
| 50extern char end[]; 51 52void 53main(void) 54{ 55 struct i386_devdesc currdev; 56 int i; 57 58 /* | 47extern char end[]; 48 49void 50main(void) 51{ 52 struct i386_devdesc currdev; 53 int i; 54 55 /* |
| 59 * Initialise the heap as early as possible. Once this is done, alloc() is usable. 60 * The stack is buried inside us, so this is safe | 56 * Initialise the heap as early as possible. Once this is done, malloc() is usable. 57 * 58 * XXX better to locate end of memory and use that |
| 61 */ | 59 */ |
| 62 setheap((void *)end, (void *)(end + 0x80000)); | 60 setheap((void *)end, (void *)(end + (384 * 1024))); |
| 63 64 /* 65 * XXX Chicken-and-egg problem; we want to have console output early, but some 66 * console attributes may depend on reading from eg. the boot device, which we 67 * can't do yet. 68 * 69 * We can use printf() etc. once this is done. 70 */ --- 13 unchanged lines hidden (view full) --- 84#if 0 85 printf("diskbuf at %p, %d sectors\n", &diskbuf, diskbuf_size); 86 printf("using %d bytes of stack at %p\n", (&stacktop - &stackbase), &stacktop); 87#endif 88 89 /* We're booting from a BIOS disk, try to spiff this */ 90 currdev.d_dev = devsw[0]; /* XXX presumes that biosdisk is first in devsw */ 91 currdev.d_type = currdev.d_dev->dv_type; | 61 62 /* 63 * XXX Chicken-and-egg problem; we want to have console output early, but some 64 * console attributes may depend on reading from eg. the boot device, which we 65 * can't do yet. 66 * 67 * We can use printf() etc. once this is done. 68 */ --- 13 unchanged lines hidden (view full) --- 82#if 0 83 printf("diskbuf at %p, %d sectors\n", &diskbuf, diskbuf_size); 84 printf("using %d bytes of stack at %p\n", (&stacktop - &stackbase), &stacktop); 85#endif 86 87 /* We're booting from a BIOS disk, try to spiff this */ 88 currdev.d_dev = devsw[0]; /* XXX presumes that biosdisk is first in devsw */ 89 currdev.d_type = currdev.d_dev->dv_type; |
| 92 currdev.d_kind.biosdisk.unit = boot_biosdev; | 90 currdev.d_kind.biosdisk.unit = 0; /* XXX wrong, need to get from bootinfo etc. */ |
| 93 currdev.d_kind.biosdisk.slice = -1; /* XXX should be able to detect this, default to autoprobe */ 94 currdev.d_kind.biosdisk.partition = 0; /* default to 'a' */ 95 96 /* Create i386-specific variables */ 97 98 env_setenv("currdev", EV_VOLATILE, i386_fmtdev(&currdev), i386_setcurrdev, env_nounset); 99 env_setenv("loaddev", EV_VOLATILE, i386_fmtdev(&currdev), env_noset, env_nounset); 100 setenv("LINES", "24", 1); /* optional */ --- 15 unchanged lines hidden (view full) --- 116COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot); 117 118static int 119command_reboot(int argc, char *argv[]) 120{ 121 122 printf("Rebooting...\n"); 123 delay(1000000); | 91 currdev.d_kind.biosdisk.slice = -1; /* XXX should be able to detect this, default to autoprobe */ 92 currdev.d_kind.biosdisk.partition = 0; /* default to 'a' */ 93 94 /* Create i386-specific variables */ 95 96 env_setenv("currdev", EV_VOLATILE, i386_fmtdev(&currdev), i386_setcurrdev, env_nounset); 97 env_setenv("loaddev", EV_VOLATILE, i386_fmtdev(&currdev), env_noset, env_nounset); 98 setenv("LINES", "24", 1); /* optional */ --- 15 unchanged lines hidden (view full) --- 114COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot); 115 116static int 117command_reboot(int argc, char *argv[]) 118{ 119 120 printf("Rebooting...\n"); 121 delay(1000000); |
| 124 reboot(); 125 /* Note: we shouldn't get to this point! */ 126 panic("Reboot failed!"); 127 exit(0); | 122 __exit(0); |
| 128} 129 | 123} 124 |
| 125/* provide this for panic */ 126void 127exit(int code) 128{ 129 __exit(code); 130} 131 132#if 0 /* XXX learn to ask BTX */ 133 |
|
| 130COMMAND_SET(stack, "stack", "show stack usage", command_stack); 131 | 134COMMAND_SET(stack, "stack", "show stack usage", command_stack); 135 |
| 136extern char stackbase, stacktop; 137 |
|
| 132static int 133command_stack(int argc, char *argv[]) 134{ 135 char *cp; 136 137 for (cp = &stackbase; cp < &stacktop; cp++) 138 if (*cp != 0) 139 break; 140 141 printf("%d bytes of stack used\n", &stacktop - cp); 142 return(CMD_OK); 143} | 138static int 139command_stack(int argc, char *argv[]) 140{ 141 char *cp; 142 143 for (cp = &stackbase; cp < &stacktop; cp++) 144 if (*cp != 0) 145 break; 146 147 printf("%d bytes of stack used\n", &stacktop - cp); 148 return(CMD_OK); 149} |
| 150#endif |
|
| 144 145COMMAND_SET(heap, "heap", "show heap usage", command_heap); 146 147static int 148command_heap(int argc, char *argv[]) 149{ 150 printf("heap base at %p, top at %p, used %d\n", end, sbrk(0), sbrk(0) - end); 151 return(CMD_OK); 152} | 151 152COMMAND_SET(heap, "heap", "show heap usage", command_heap); 153 154static int 155command_heap(int argc, char *argv[]) 156{ 157 printf("heap base at %p, top at %p, used %d\n", end, sbrk(0), sbrk(0) - end); 158 return(CMD_OK); 159} |