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try_chrp_script() now accepts a third parameter which indicates the

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script to be loaded and parsed. It will also terminate parsing on
the '</chrp-boot>' tag, which makes locating embedded data after
the script easier.

Signed-off-by: Steven Noonan <steven@uplinklabs.net>

(laurent: remove XCOFF placeholder)



git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@544 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Steven Noonan
2009-08-10 19:50:04 +00:00
committed by Laurent Vivier
parent b1070a239f
commit a734a346f2
1 changed files with 25 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
arch/ppc/qemu/main.c
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@@ -223,21 +223,21 @@ try_path(const char *path, const char *param)
http://playground.sun.com/1275/bindings/chrp/chrp1_7a.ps
*/
static void
try_bootinfo(const char *path, const char *param)
try_chrp_script(const char *of_path, const char *param, const char *script_path)
{
int fd, len, tag, taglen, script, scriptlen, entity;
char tagbuf[256], bootscript[256], c;
char *device, *filename, *directory;
int partition;
device = get_device(path);
partition = get_partition(path);
filename = get_filename(path, &directory);
device = get_device(of_path);
partition = get_partition(of_path);
filename = get_filename(of_path, &directory);
/* read boot script */
snprintf(bootscript, sizeof(bootscript), "%s:%d,ppc\\bootinfo.txt",
device, partition);
snprintf(bootscript, sizeof(bootscript), "%s:%d,%s",
device, partition, script_path);
ELF_DPRINTF("Trying %s\n", bootscript);
if ((fd = open_io(bootscript)) == -1) {
@@ -267,10 +267,10 @@ try_bootinfo(const char *path, const char *param)
tagbuf[taglen] = '\0';
if (strcasecmp(tagbuf, "boot-script") == 0)
script = 1;
else if (strcasecmp(tagbuf, "/boot-script") == 0) {
else if (strcasecmp(tagbuf, "/boot-script") == 0)
bootscript[scriptlen] = '\0';
break;
}
else if (strcasecmp(tagbuf, "/chrp-boot") == 0)
break;
} else if (tag && taglen < sizeof(tagbuf)) {
tagbuf[taglen++] = c;
} else if (script && c == '&') {
@@ -292,8 +292,8 @@ try_bootinfo(const char *path, const char *param)
strcpy(bootscript + scriptlen, filename);
scriptlen += strlen(filename);
} else if (strcasecmp(tagbuf, "full-path") == 0) {
strcpy(bootscript + scriptlen, path);
scriptlen += strlen(path);
strcpy(bootscript + scriptlen, of_path);
scriptlen += strlen(of_path);
} else { /* unknown, keep it */
bootscript[scriptlen] = '&';
strcpy(bootscript + scriptlen + 1, tagbuf);
@@ -310,7 +310,7 @@ try_bootinfo(const char *path, const char *param)
ELF_DPRINTF("got bootscript %s\n", bootscript);
encode_bootpath(path, param);
encode_bootpath(of_path, param);
feval(bootscript);
badf:
@@ -386,7 +386,8 @@ quik_startup( void )
static void
yaboot_startup( void )
{
static const char * const paths[] = { "hd:2,\\ofclient", "hd:2,\\yaboot" };
static const char * const chrp_paths[] = { "ppc\\bootinfo.txt", "System\\Library\\CoreServices\\BootX" };
static const char * const elf_paths[] = { "hd:2,\\ofclient", "hd:2,\\yaboot" };
static const char * const args[] = { "", "conf=hd:2,\\yaboot.conf" };
char *path = pop_fstr_copy(), *param;
int i;
@@ -420,7 +421,9 @@ yaboot_startup( void )
param = pop_fstr_copy();
}
try_path(path, param);
try_bootinfo(path, param);
for( i=0; i < sizeof(chrp_paths) / sizeof(chrp_paths[0]); i++ ) {
try_chrp_script(path, param, chrp_paths[i]);
}
} else {
uint16_t boot_device = fw_cfg_read_i16(FW_CFG_BOOT_DEVICE);
switch (boot_device) {
@@ -432,15 +435,19 @@ yaboot_startup( void )
path = strdup("cd:0");
break;
}
try_bootinfo(path, NULL);
for( i=0; i < sizeof(chrp_paths) / sizeof(chrp_paths[0]); i++ ) {
try_chrp_script(path, param, chrp_paths[i]);
}
}
} else {
ELF_DPRINTF("Entering boot, path %s\n", path);
try_path(path, param);
try_bootinfo(path, param);
for( i=0; i < sizeof(chrp_paths) / sizeof(chrp_paths[0]); i++ ) {
try_chrp_script(path, param, chrp_paths[i]);
}
}
for( i=0; i < sizeof(paths) / sizeof(paths[0]); i++ ) {
try_path(paths[i], args[i]);
for( i=0; i < sizeof(elf_paths) / sizeof(elf_paths[0]); i++ ) {
try_path(elf_paths[i], args[i]);
}
printk("*** Boot failure! No secondary bootloader specified ***\n");
}