WebSVN – HelenOS-historic – Diff – /SPARTAN/trunk/arch/amd64/_link.ld.in


/** AMD64 linker script
 *  
 * umapped section:
 * 	kernel text
 * 	kernel data
 * mapped section:
 *	kernel text
 *	kernel data 
 */
 
#define __ASM__
#include <arch/boot/boot.h>
#include <arch/mm/page.h>
 
 
ENTRY(kernel_image_start)
 
SECTIONS {
	.unmapped BOOTSTRAP_OFFSET: AT (BOOTSTRAP_OFFSET) {
		unmapped_ktext_start = .;
		*(K_TEXT_START);
		*(K_TEXT_START_2);
		unmapped_ktext_end = .;
 
		unmapped_kdata_start = .;
		*(K_DATA_START);
		unmapped_kdata_end = .;
	}
 
	.mapped (PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)+SIZEOF(.unmapped)) : AT (BOOTSTRAP_OFFSET+SIZEOF(.unmapped)) {
		ktext_start = .;
		*(BOOT_DATA);
		*(.text);
		ktext_end = .;
 
		kdata_start = .;
		*(.data);		/* initialized data */
		*(.rodata*);		/* string literals */
		hardcoded_load_address = .;
		QUAD(PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET));
		hardcoded_ktext_size = .;
		QUAD(ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start));
		hardcoded_kdata_size = .;
		QUAD(kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start));
		hardcoded_unmapped_ktext_size = .;
		LONG(unmapped_ktext_end - unmapped_ktext_start);
		hardcoded_unmapped_kdata_size = .;
		LONG(unmapped_kdata_end - unmapped_kdata_start);
		*(COMMON);		/* global variables */
 
		*(.eh_frame);
		*(.bss);		/* uninitialized static variables */
 
		symbol_table = .;
		*(symtab.*);            /* Symbol table, must be LAST symbol!*/
 
		kdata_end = .;
	}
 
	_hardcoded_kernel_size = (ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start) + (kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start);
 
	/* Symbols that need to be accessed both from real mode & long mode */
	/* e820*_boot is real mode (pre-above-1MB-move), e820* is */
	/* kernel mapped above-1MB-physical copied symbol */
	e820table_boot = KA2PA(e820table) - BOOT_OFFSET;
	e820counter_boot = KA2PA(e820counter) - BOOT_OFFSET;
 
	/* real_bootstrap_gdtr is mapped real_bootstrap_gdtr_boot */
	/* It is physically outside of kernel area, we have to access */
	/* it after modification from long mode for booting */
	/* SMP slave processors */
	real_bootstrap_gdtr = PA2KA(real_bootstrap_gdtr_boot);
}
 

Rev 457	Rev 461
1	/** AMD64 linker script	1	/** AMD64 linker script
2	*	2	*
3	* umapped section:	3	* umapped section:
4	* kernel text	4	* kernel text
5	* kernel data	5	* kernel data
6	* mapped section:	6	* mapped section:
7	* kernel text	7	* kernel text
8	* kernel data	8	* kernel data
9	*/	9	*/
10		10
11	#define __ASM__	11	#define __ASM__
12	#include <arch/boot/boot.h>	12	#include <arch/boot/boot.h>
13	#include <arch/mm/page.h>	13	#include <arch/mm/page.h>
14		14
15	OUTPUT_FORMAT(BFD)	-
16	ENTRY(kernel_image_start)	15	ENTRY(kernel_image_start)
17		16
18	SECTIONS {	17	SECTIONS {
19	.unmapped BOOTSTRAP_OFFSET: AT (BOOTSTRAP_OFFSET) {	18	.unmapped BOOTSTRAP_OFFSET: AT (BOOTSTRAP_OFFSET) {
20	unmapped_ktext_start = .;	19	unmapped_ktext_start = .;
21	*(K_TEXT_START);	20	*(K_TEXT_START);
22	*(K_TEXT_START_2);	21	*(K_TEXT_START_2);
23	unmapped_ktext_end = .;	22	unmapped_ktext_end = .;
24		23
25	unmapped_kdata_start = .;	24	unmapped_kdata_start = .;
26	*(K_DATA_START);	25	*(K_DATA_START);
27	unmapped_kdata_end = .;	26	unmapped_kdata_end = .;
28	}	27	}
29		28
30	.mapped (PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)+SIZEOF(.unmapped)) : AT (BOOTSTRAP_OFFSET+SIZEOF(.unmapped)) {	29	.mapped (PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)+SIZEOF(.unmapped)) : AT (BOOTSTRAP_OFFSET+SIZEOF(.unmapped)) {
31	ktext_start = .;	30	ktext_start = .;
32	*(BOOT_DATA);	31	*(BOOT_DATA);
33	*(.text);	32	*(.text);
34	ktext_end = .;	33	ktext_end = .;
35		34
36	kdata_start = .;	35	kdata_start = .;
37	(.data); / initialized data */	36	(.data); / initialized data */
38	(.rodata); /* string literals */	37	(.rodata); /* string literals */
39	hardcoded_load_address = .;	38	hardcoded_load_address = .;
40	QUAD(PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET));	39	QUAD(PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET));
41	hardcoded_ktext_size = .;	40	hardcoded_ktext_size = .;
42	QUAD(ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start));	41	QUAD(ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start));
43	hardcoded_kdata_size = .;	42	hardcoded_kdata_size = .;
44	QUAD(kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start));	43	QUAD(kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start));
45	hardcoded_unmapped_ktext_size = .;	44	hardcoded_unmapped_ktext_size = .;
46	LONG(unmapped_ktext_end - unmapped_ktext_start);	45	LONG(unmapped_ktext_end - unmapped_ktext_start);
47	hardcoded_unmapped_kdata_size = .;	46	hardcoded_unmapped_kdata_size = .;
48	LONG(unmapped_kdata_end - unmapped_kdata_start);	47	LONG(unmapped_kdata_end - unmapped_kdata_start);
49	(COMMON); / global variables */	48	(COMMON); / global variables */
50		49
51	*(.eh_frame);	50	*(.eh_frame);
52	(.bss); / uninitialized static variables */	51	(.bss); / uninitialized static variables */
53		52
54	symbol_table = .;	53	symbol_table = .;
55	(symtab.); /* Symbol table, must be LAST symbol!*/	54	(symtab.); /* Symbol table, must be LAST symbol!*/
56		55
57	kdata_end = .;	56	kdata_end = .;
58	}	57	}
59		58
60	_hardcoded_kernel_size = (ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start) + (kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start);	59	_hardcoded_kernel_size = (ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start) + (kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start);
61		60
62	/* Symbols that need to be accessed both from real mode & long mode */	61	/* Symbols that need to be accessed both from real mode & long mode */
63	/* e820_boot is real mode (pre-above-1MB-move), e820 is */	62	/* e820_boot is real mode (pre-above-1MB-move), e820 is */
64	/* kernel mapped above-1MB-physical copied symbol */	63	/* kernel mapped above-1MB-physical copied symbol */
65	e820table_boot = KA2PA(e820table) - BOOT_OFFSET;	64	e820table_boot = KA2PA(e820table) - BOOT_OFFSET;
66	e820counter_boot = KA2PA(e820counter) - BOOT_OFFSET;	65	e820counter_boot = KA2PA(e820counter) - BOOT_OFFSET;
67		66
68	/* real_bootstrap_gdtr is mapped real_bootstrap_gdtr_boot */	67	/* real_bootstrap_gdtr is mapped real_bootstrap_gdtr_boot */
69	/* It is physically outside of kernel area, we have to access */	68	/* It is physically outside of kernel area, we have to access */
70	/* it after modification from long mode for booting */	69	/* it after modification from long mode for booting */
71	/* SMP slave processors */	70	/* SMP slave processors */
72	real_bootstrap_gdtr = PA2KA(real_bootstrap_gdtr_boot);	71	real_bootstrap_gdtr = PA2KA(real_bootstrap_gdtr_boot);
73	}	72	}
74		73

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(root)/SPARTAN/trunk/arch/amd64/_link.ld.in – Rev 457 → 461