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works with RBV mac ! thank you penguin... very messy: FIX ME !

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Laurent Vivier 2004-02-23 23:34:39 +00:00
parent c241af85f5
commit 9290c1f2d8
1 changed files with 27 additions and 6 deletions
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33
second/main.c
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@ -20,7 +20,9 @@ extern char _kernel_start;
extern char _kernel_end;
extern char _KERNEL_SIZE;
extern void enter_kernel(char* addr, unsigned long size);
extern struct bootinfo boot_info;
extern void enter_kernel(unsigned long addr, unsigned long size, unsigned long dest);
#define BI_ALLOC_SIZE (4096L) // Allocate 4K for bootinfo
@ -31,16 +33,19 @@ int main(int argc, char** argv)
char* kernel_image_start = &_kernel_start;
unsigned long kernel_image_size = &_kernel_end - &_kernel_start;
unsigned long kernel_size = (unsigned long)&_KERNEL_SIZE;
unsigned long physEntry;
typedef void (*entry_t) (unsigned char *physEntry, unsigned long size);
unsigned long physImage;
typedef void (*entry_t) (unsigned long physImage, unsigned long size, unsigned long dest);
entry_t entry;
int ret;
unsigned long start_mem;
unsigned long aligned_size;
unsigned long aligned_addr;
printf("Early Macintosh Image LoadEr\n");
printf("EMILE v"VERSION" (c) 2004 Laurent Vivier\n");
printf("This is free software, redistribute it under GPL\n");
bank_dump();
printf("Available Memory: %ld kB\n", bank_mem_avail() / 1024);
printf("Kernel image found at %p\n", kernel_image_start);
printf("Kernel image size is %ld Bytes\n", kernel_image_size);
@ -69,7 +74,17 @@ int main(int argc, char** argv)
while(1) ;
}
ret = logical2physical((unsigned long)kernel, &physEntry);
ret = logical2physical((unsigned long)kernel, &physImage);
#define KERNEL_ALIGN (256L * 1024L) // Kernel alignment, on 256K boundary
aligned_size = boot_info.memory[0].addr & (KERNEL_ALIGN - 1);
if ( aligned_size > 0 ) {
aligned_size = KERNEL_ALIGN - aligned_size;
aligned_addr = boot_info.memory[0].addr + aligned_size;
aligned_size = boot_info.memory[0].size - aligned_size;
boot_info.memory[0].addr = aligned_addr;
boot_info.memory[0].size = aligned_size;
}
set_kernel_bootinfo(kernel + kernel_size);
@ -105,7 +120,13 @@ int main(int argc, char** argv)
printf("\nOk, booting the kernel.\n");
entry((unsigned char*)physEntry, kernel_size + BI_ALLOC_SIZE);
#define PAGE_SHIFT 12
#define PAGE_SIZE (1UL << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
start_mem = boot_info.memory[0].addr + PAGE_SIZE;
entry(physImage, kernel_size + BI_ALLOC_SIZE, start_mem);
return 0;
}