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Add bootinfo-loader.

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Signed-off-by: Laurent Vivier <Laurent@vivier.eu>



git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@584 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Laurent Vivier
2009-09-20 20:15:46 +00:00
parent 1f31d2f057
commit 719271835f
7 changed files with 260 additions and 110 deletions
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111
arch/ppc/qemu/main.c
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@@ -229,27 +229,13 @@ try_path(const char *path, const char *param)
/* won't come here */
}
/*
Parse SGML structure like:
<chrp-boot>
<description>Debian/GNU Linux Installation on IBM CHRP hardware</description>
<os-name>Debian/GNU Linux for PowerPC</os-name>
<boot-script>boot &device;:\install\yaboot</boot-script>
<icon size=64,64 color-space=3,3,2>
CHRP system bindings are described at:
http://playground.sun.com/1275/bindings/chrp/chrp1_7a.ps
*/
static void
try_chrp_script(const char *of_path, const char *param, const char *script_path)
{
int tag, taglen, script, scriptlen, entity, chrp;
char tagbuf[128], path[1024], c;
char path[1024];
char *device, *filename, *directory;
int partition;
int current, size;
char *base;
char *bootscript;
int size;
device = get_device(of_path);
partition = get_partition(of_path);
@@ -274,98 +260,7 @@ try_chrp_script(const char *of_path, const char *param, const char *script_path)
ELF_DPRINTF("Can't open %s\n", of_path);
return;
}
bootscript = malloc(size);
if (bootscript == NULL) {
ELF_DPRINTF("Can't malloc %d bytes\n", size);
return;
}
feval("load-base");
base = (char*)POP();
chrp = 0;
tag = 0;
taglen = 0;
script = 0;
scriptlen = 0;
entity = 0;
current = 0;
while (current < size) {
c = base[current++];
if (c == '<') {
script = 0;
tag = 1;
taglen = 0;
} else if (c == '>') {
tag = 0;
tagbuf[taglen] = '\0';
if (strcasecmp(tagbuf, "chrp-boot") == 0) {
chrp = 1;
} else if (chrp == 1) {
if (strcasecmp(tagbuf, "boot-script") == 0) {
script = 1;
scriptlen = 0;
} else if (strcasecmp(tagbuf, "/boot-script") == 0) {
script = 0;
bootscript[scriptlen] = '\0';
CHRP_DPRINTF("got bootscript %s\n", bootscript);
encode_bootpath(of_path, param);
feval(bootscript);
break;
} else if (strcasecmp(tagbuf, "/chrp-boot") == 0)
break;
}
} else if (tag && taglen < sizeof(tagbuf)) {
tagbuf[taglen++] = c;
} else if (script && c == '&') {
entity = 1;
taglen = 0;
} else if (entity && c ==';') {
entity = 0;
tagbuf[taglen] = '\0';
if (strcasecmp(tagbuf, "lt") == 0) {
bootscript[scriptlen++] = '<';
} else if (strcasecmp(tagbuf, "gt") == 0) {
bootscript[scriptlen++] = '>';
} else if (strcasecmp(tagbuf, "device") == 0) {
strcpy(bootscript + scriptlen, device);
scriptlen += strlen(device);
} else if (strcasecmp(tagbuf, "partition") == 0) {
if (partition != -1)
sprintf(bootscript + scriptlen, "%d", partition);
else
*(bootscript + scriptlen) = 0;
scriptlen = strlen(bootscript);
} else if (strcasecmp(tagbuf, "directory") == 0) {
strcpy(bootscript + scriptlen, directory);
scriptlen += strlen(directory);
} else if (strcasecmp(tagbuf, "filename") == 0) {
strcpy(bootscript + scriptlen, filename);
scriptlen += strlen(filename);
} else if (strcasecmp(tagbuf, "full-path") == 0) {
strcpy(bootscript + scriptlen, of_path);
scriptlen += strlen(of_path);
} else { /* unknown, keep it */
bootscript[scriptlen] = '&';
strcpy(bootscript + scriptlen + 1, tagbuf);
scriptlen += taglen + 1;
bootscript[scriptlen] = ';';
scriptlen++;
}
} else if (entity && taglen < sizeof(tagbuf)) {
tagbuf[taglen++] = c;
} else if (script && scriptlen < size) {
bootscript[scriptlen++] = c;
}
}
free(bootscript);
feval("go");
}
#define OLDWORLD_BOOTCODE_BASEADDR (0x3f4000)