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Update code which creates bootinfo.

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This commit is contained in:
Doug Rabson 2001-09-13 12:49:02 +00:00
parent 0b02d706db
commit f0f40e4c2a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=83408
6 changed files with 202 additions and 4 deletions
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98
sys/boot/ia64/libski/bootinfo.c
View File

@ -35,8 +35,93 @@
#include <machine/bootinfo.h>
#include "bootstrap.h"
/*
* Return a 'boothowto' value corresponding to the kernel arguments in
* (kargs) and any relevant environment variables.
*/
static struct
{
const char *ev;
int mask;
} howto_names[] = {
{"boot_askname", RB_ASKNAME},
{"boot_cdrom", RB_CDROM},
{"boot_userconfig", RB_CONFIG},
{"boot_ddb", RB_KDB},
{"boot_gdb", RB_GDB},
{"boot_single", RB_SINGLE},
{"boot_verbose", RB_VERBOSE},
{NULL, 0}
};
extern char *ski_fmtdev(void *vdev);
int
bi_getboothowto(char *kargs)
{
char *cp;
int howto;
int active;
int i;
/* Parse kargs */
howto = 0;
if (kargs != NULL) {
cp = kargs;
active = 0;
while (*cp != 0) {
if (!active && (*cp == '-')) {
active = 1;
} else if (active)
switch (*cp) {
case 'a':
howto |= RB_ASKNAME;
break;
case 'c':
howto |= RB_CONFIG;
break;
case 'C':
howto |= RB_CDROM;
break;
case 'd':
howto |= RB_KDB;
break;
case 'm':
howto |= RB_MUTE;
break;
case 'g':
howto |= RB_GDB;
break;
case 'h':
howto |= RB_SERIAL;
break;
case 'r':
howto |= RB_DFLTROOT;
break;
case 's':
howto |= RB_SINGLE;
break;
case 'v':
howto |= RB_VERBOSE;
break;
default:
active = 0;
break;
}
cp++;
}
}
/* get equivalents from the environment */
for (i = 0; howto_names[i].ev != NULL; i++)
if (getenv(howto_names[i].ev) != NULL)
howto |= howto_names[i].mask;
if (!strcmp(getenv("console"), "comconsole"))
howto |= RB_SERIAL;
if (!strcmp(getenv("console"), "nullconsole"))
howto |= RB_MUTE;
return(howto);
}
/*
* Copy the environment into the load area starting at (addr).
* Each variable is formatted as <name>=<value>, with a single nul
@ -150,7 +235,7 @@ bi_copymodules(vm_offset_t addr)
* - Module metadata are formatted and placed in kernel space.
*/
int
bi_load(struct bootinfo *bi, struct preloaded_file *fp)
bi_load(struct bootinfo *bi, struct preloaded_file *fp, char *args)
{
char *rootdevname;
struct ski_devdesc *rootdev;
@ -161,6 +246,17 @@ bi_load(struct bootinfo *bi, struct preloaded_file *fp)
vm_offset_t ssym, esym;
struct file_metadata *md;
/*
* Version 1 bootinfo.
*/
bi->bi_magic = BOOTINFO_MAGIC;
bi->bi_version = 1;
/*
* Calculate boothowto.
*/
bi->bi_boothowto = bi_getboothowto(fp->f_args);
/*
* Allow the environment variable 'rootdev' to override the supplied device
* This should perhaps go to MI code and/or have $rootdev tested/set by

1
sys/boot/ia64/libski/elf_freebsd.c
View File

@ -90,7 +90,6 @@
#define _KERNEL
static int elf_exec(struct preloaded_file *amp);
int bi_load(struct bootinfo *, struct preloaded_file *);
struct file_format ia64_elf = { elf_loadfile, elf_exec };

4
sys/boot/ia64/libski/libski.h
View File

@ -74,6 +74,10 @@ extern ssize_t ski_readin(int fd, vm_offset_t dest, size_t len);
extern int ski_boot(void);
extern int ski_autoload(void);
struct bootinfo;
struct preloaded_file;
extern int bi_load(struct bootinfo *, struct preloaded_file *);
#define SSC_CONSOLE_INIT 20
#define SSC_GETCHAR 21
#define SSC_PUTCHAR 31

98
sys/boot/ia64/ski/bootinfo.c
View File

@ -35,8 +35,93 @@
#include <machine/bootinfo.h>
#include "bootstrap.h"
/*
* Return a 'boothowto' value corresponding to the kernel arguments in
* (kargs) and any relevant environment variables.
*/
static struct
{
const char *ev;
int mask;
} howto_names[] = {
{"boot_askname", RB_ASKNAME},
{"boot_cdrom", RB_CDROM},
{"boot_userconfig", RB_CONFIG},
{"boot_ddb", RB_KDB},
{"boot_gdb", RB_GDB},
{"boot_single", RB_SINGLE},
{"boot_verbose", RB_VERBOSE},
{NULL, 0}
};
extern char *ski_fmtdev(void *vdev);
int
bi_getboothowto(char *kargs)
{
char *cp;
int howto;
int active;
int i;
/* Parse kargs */
howto = 0;
if (kargs != NULL) {
cp = kargs;
active = 0;
while (*cp != 0) {
if (!active && (*cp == '-')) {
active = 1;
} else if (active)
switch (*cp) {
case 'a':
howto |= RB_ASKNAME;
break;
case 'c':
howto |= RB_CONFIG;
break;
case 'C':
howto |= RB_CDROM;
break;
case 'd':
howto |= RB_KDB;
break;
case 'm':
howto |= RB_MUTE;
break;
case 'g':
howto |= RB_GDB;
break;
case 'h':
howto |= RB_SERIAL;
break;
case 'r':
howto |= RB_DFLTROOT;
break;
case 's':
howto |= RB_SINGLE;
break;
case 'v':
howto |= RB_VERBOSE;
break;
default:
active = 0;
break;
}
cp++;
}
}
/* get equivalents from the environment */
for (i = 0; howto_names[i].ev != NULL; i++)
if (getenv(howto_names[i].ev) != NULL)
howto |= howto_names[i].mask;
if (!strcmp(getenv("console"), "comconsole"))
howto |= RB_SERIAL;
if (!strcmp(getenv("console"), "nullconsole"))
howto |= RB_MUTE;
return(howto);
}
/*
* Copy the environment into the load area starting at (addr).
* Each variable is formatted as <name>=<value>, with a single nul
@ -150,7 +235,7 @@ bi_copymodules(vm_offset_t addr)
* - Module metadata are formatted and placed in kernel space.
*/
int
bi_load(struct bootinfo *bi, struct preloaded_file *fp)
bi_load(struct bootinfo *bi, struct preloaded_file *fp, char *args)
{
char *rootdevname;
struct ski_devdesc *rootdev;
@ -161,6 +246,17 @@ bi_load(struct bootinfo *bi, struct preloaded_file *fp)
vm_offset_t ssym, esym;
struct file_metadata *md;
/*
* Version 1 bootinfo.
*/
bi->bi_magic = BOOTINFO_MAGIC;
bi->bi_version = 1;
/*
* Calculate boothowto.
*/
bi->bi_boothowto = bi_getboothowto(fp->f_args);
/*
* Allow the environment variable 'rootdev' to override the supplied device
* This should perhaps go to MI code and/or have $rootdev tested/set by

1
sys/boot/ia64/ski/elf_freebsd.c
View File

@ -90,7 +90,6 @@
#define _KERNEL
static int elf_exec(struct preloaded_file *amp);
int bi_load(struct bootinfo *, struct preloaded_file *);
struct file_format ia64_elf = { elf_loadfile, elf_exec };

4
sys/boot/ia64/ski/libski.h
View File

@ -74,6 +74,10 @@ extern ssize_t ski_readin(int fd, vm_offset_t dest, size_t len);
extern int ski_boot(void);
extern int ski_autoload(void);
struct bootinfo;
struct preloaded_file;
extern int bi_load(struct bootinfo *, struct preloaded_file *);
#define SSC_CONSOLE_INIT 20
#define SSC_GETCHAR 21
#define SSC_PUTCHAR 31