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Increase stack size on sparc

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-02-14 14:32:21 +01:00
parent 10f6389453
commit 320dd174b5
5 changed files with 32 additions and 10 deletions
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2
include/grub/sparc64/ieee1275/ieee1275.h
View file

@ -43,4 +43,6 @@ extern int EXPORT_FUNC(grub_ieee1275_alloc_physmem) (grub_addr_t *paddr,
grub_size_t size,
grub_uint32_t align);
extern grub_addr_t EXPORT_VAR (grub_ieee1275_original_stack);
#endif /* ! GRUB_IEEE1275_MACHINE_HEADER */

1
include/grub/sparc64/ieee1275/kernel.h
View file

@ -40,6 +40,7 @@
#define GRUB_KERNEL_MACHINE_DATA_END 0x114
#define GRUB_KERNEL_MACHINE_RAW_SIZE 0
#define GRUB_KERNEL_MACHINE_STACK_SIZE 0x40000
#define GRUB_PLATFORM_IMAGE_FORMATS "raw, aout"
#define GRUB_PLATFORM_IMAGE_DEFAULT_FORMAT "raw"

16
kern/sparc64/ieee1275/crt0.S
View file

@ -53,8 +53,17 @@ codestart:
or %o3, %lo(_end), %o3
sethi %hi(grub_total_module_size), %o4
lduw [%o4 + %lo(grub_total_module_size)], %o4
add %o2, %o4, %o2
add %o3, %o4, %o3
/* Save ieee1275 stack for future use by booter. */
mov %o6, %o1
/* Our future stack. */
sethi %hi(GRUB_KERNEL_MACHINE_STACK_SIZE - 2047), %o5
or %o5, %lo(GRUB_KERNEL_MACHINE_STACK_SIZE - 2047), %o5
add %o3, %o5, %o6
sub %o2, 4, %o2
sub %o3, 4, %o3
1: lduw [%o2], %o5
@ -62,7 +71,7 @@ codestart:
subcc %o4, 4, %o4
sub %o2, 4, %o2
bne,pt %icc, 1b
sub %o3, 4, %o3
sub %o3, 4, %o3
/* Now it's safe to clear out the BSS. */
sethi %hi(__bss_start), %o2
@ -74,8 +83,9 @@ codestart:
cmp %o2, %o3
blt,pt %xcc, 1b
nop
sethi %hi(grub_ieee1275_original_stack), %o2
stx %o1, [%o2 + %lo(grub_ieee1275_original_stack)]
sethi %hi(grub_ieee1275_entry_fn), %o2
stx %o0, [%o2 + %lo(grub_ieee1275_entry_fn)]
call grub_main
nop
stx %o0, [%o2 + %lo(grub_ieee1275_entry_fn)]
1: ba,a 1b

6
kern/sparc64/ieee1275/init.c
View file

@ -23,12 +23,15 @@
#include <grub/err.h>
#include <grub/misc.h>
#include <grub/time.h>
#include <grub/machine/boot.h>
#include <grub/machine/console.h>
#include <grub/machine/kernel.h>
#include <grub/machine/time.h>
#include <grub/ieee1275/ofdisk.h>
#include <grub/ieee1275/ieee1275.h>
grub_addr_t grub_ieee1275_original_stack;
void
grub_exit (void)
{
@ -104,7 +107,8 @@ grub_machine_set_prefix (void)
static void
grub_heap_init (void)
{
grub_mm_init_region ((void *) grub_modules_get_end (), 0x200000);
grub_mm_init_region ((void *) (grub_modules_get_end ()
+ GRUB_KERNEL_MACHINE_STACK_SIZE), 0x200000);
}
static void

17
loader/sparc64/ieee1275/linux.c
View file

@ -58,9 +58,6 @@ static grub_size_t linux_size;
static char *linux_args;
typedef void (*kernel_entry_t) (unsigned long, unsigned long,
unsigned long, unsigned long, int (void *));
struct linux_bootstr_info {
int len, valid;
char buf[];
@ -92,7 +89,6 @@ static grub_err_t
grub_linux_boot (void)
{
struct linux_bootstr_info *bp;
kernel_entry_t linuxmain;
struct linux_hdrs *hp;
grub_addr_t addr;
@ -141,8 +137,17 @@ grub_linux_boot (void)
grub_dprintf ("loader", "Jumping to Linux...\n");
/* Boot the kernel. */
linuxmain = (kernel_entry_t) linux_addr;
linuxmain (0, 0, 0, 0, grub_ieee1275_entry_fn);
asm volatile ("sethi %hi(grub_ieee1275_entry_fn), %o1\n"
"ldx [%o1 + %lo(grub_ieee1275_entry_fn)], %o4\n"
"sethi %hi(grub_ieee1275_original_stack), %o1\n"
"ldx [%o1 + %lo(grub_ieee1275_original_stack)], %o6\n"
"sethi %hi(linux_addr), %o1\n"
"ldx [%o1 + %lo(linux_addr)], %o5\n"
"mov %g0, %o0\n"
"mov %g0, %o2\n"
"mov %g0, %o3\n"
"jmp %o5\n"
"mov %g0, %o1\n");
return GRUB_ERR_NONE;
}