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2008-08-29 Pavel Roskin <proski@gnu.org>

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* kern/powerpc/ieee1275/crt0.S: Include grub/symbol.h and
	grub/cpu/kernel.h.  Add start label for consistency with other
	platforms.  Add grub_prefix immediately after start.  Add jump
	to the code after grub_prefix.
	* include/grub/powerpc/kernel.h: Provide valid values for
	GRUB_KERNEL_CPU_PREFIX and GRUB_KERNEL_CPU_DATA_END.
This commit is contained in:
proski 2008-08-29 21:46:17 +00:00
parent 6e5a42fe9a
commit b497a269db
3 changed files with 31 additions and 5 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2008-08-29 Pavel Roskin <proski@gnu.org>
* kern/powerpc/ieee1275/crt0.S: Include grub/symbol.h and
grub/cpu/kernel.h. Add start label for consistency with other
platforms. Add grub_prefix immediately after start. Add jump
to the code after grub_prefix.
* include/grub/powerpc/kernel.h: Provide valid values for
GRUB_KERNEL_CPU_PREFIX and GRUB_KERNEL_CPU_DATA_END.
2008-08-29 Bean <bean123ch@gmail.com> 2008-08-29 Bean <bean123ch@gmail.com>
* configure.ac: Change host_os to cygwin for mingw. * configure.ac: Change host_os to cygwin for mingw.

5
include/grub/powerpc/kernel.h
View file

@ -26,8 +26,7 @@
rewrite grub-mkimage to generate valid ELF files. */ rewrite grub-mkimage to generate valid ELF files. */
#define GRUB_MOD_GAP 0x8000 #define GRUB_MOD_GAP 0x8000
/* prefix not supported on powerpc yet. */ #define GRUB_KERNEL_CPU_PREFIX 0x4
#define GRUB_KERNEL_CPU_PREFIX 0 #define GRUB_KERNEL_CPU_DATA_END 0x44
#define GRUB_KERNEL_CPU_DATA_END 0
#endif #endif

20
kern/powerpc/ieee1275/crt0.S
View file

@ -17,13 +17,31 @@
* along with GRUB. If not, see <http://www.gnu.org/licenses/>. * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/ */
#include <grub/symbol.h>
#include <grub/cpu/kernel.h>
.extern __bss_start .extern __bss_start
.extern _end .extern _end
.text .text
.align 2 .align 2
.globl _start .globl start, _start
start:
_start: _start:
b codestart
. = EXT_C(start) + GRUB_KERNEL_CPU_PREFIX
VARIABLE(grub_prefix)
/* to be filled by grub-mkelfimage */
/*
* Leave some breathing room for the prefix.
*/
. = EXT_C(start) + GRUB_KERNEL_CPU_DATA_END
codestart:
li 2, 0 li 2, 0
li 13, 0 li 13, 0