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Simplify init assembly

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-04-12 16:50:58 +02:00
parent 04e80baa32
commit b624c94856
2 changed files with 20 additions and 44 deletions
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25
grub-core/kern/uboot/init.c
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@ -35,10 +35,10 @@ extern char _end[];
extern grub_size_t grub_total_module_size;
extern int (*uboot_syscall_ptr) (int, int *, ...);
grub_addr_t grub_modbase;
grub_uint32_t uboot_machine_type;
grub_addr_t uboot_boot_data;
/* Set to anything other than zero so it lands in .data and not .bss. */
grub_addr_t grub_modbase = 0x55aa55aa;
grub_uint32_t uboot_machine_type = 0x55aa55aa;
grub_addr_t uboot_boot_data = 0x55aa55aa;
static unsigned long timer_start;
@ -69,7 +69,6 @@ uboot_timer_ms (void)
void
grub_machine_init (void)
{
grub_addr_t end, real_bss_start;
int ver;
/* First of all - establish connection with U-Boot */
@ -85,26 +84,14 @@ grub_machine_init (void)
uboot_puts ("invalid U-Boot API version\n");
}
/*
* Modules were relocated to _end, or __bss_start + grub_total_module_size,
* whichever greater. (And __bss_start may not point to actual BSS start...)
*/
real_bss_start = uboot_get_real_bss_start ();
end = real_bss_start + grub_total_module_size;
if (end < (grub_addr_t) _end)
end = (grub_addr_t) _end;
grub_modbase = end;
/* Initialize the console so that GRUB can display messages. */
grub_console_init_early ();
/* Enumerate memory and initialize the memory management system. */
grub_uboot_mm_init ();
grub_dprintf ("init", "__bss_start: 0x%08x, real_bss_start: 0x%08x\n",
(grub_addr_t) __bss_start, real_bss_start);
grub_dprintf ("init", "end: 0x%08x, _end: 0x%08x\n",
(grub_addr_t) end, (grub_addr_t) _end);
grub_dprintf ("init", "__bss_start: %p\n", __bss_start);
grub_dprintf ("init", "_end: %p\n", _end);
grub_dprintf ("init", "grub_modbase: %p\n", (void *) grub_modbase);
grub_dprintf ("init", "grub_modules_get_end(): %p\n",
(void *) grub_modules_get_end ());