WebSVN – HelenOS – 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>
 
OUTPUT_FORMAT(binary)
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 */
		*(K_DATA_END);
 
		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 301	Rev 332
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(binary)	15	OUTPUT_FORMAT(binary)
16	ENTRY(kernel_image_start)	16	ENTRY(kernel_image_start)
17		17
18	SECTIONS {	18	SECTIONS {
19	.unmapped BOOTSTRAP_OFFSET: AT (BOOTSTRAP_OFFSET) {	19	.unmapped BOOTSTRAP_OFFSET: AT (BOOTSTRAP_OFFSET) {
20	unmapped_ktext_start = .;	20	unmapped_ktext_start = .;
21	*(K_TEXT_START);	21	*(K_TEXT_START);
22	*(K_TEXT_START_2);	22	*(K_TEXT_START_2);
23	unmapped_ktext_end = .;	23	unmapped_ktext_end = .;
24		24
25	unmapped_kdata_start = .;	25	unmapped_kdata_start = .;
26	*(K_DATA_START);	26	*(K_DATA_START);
27	unmapped_kdata_end = .;	27	unmapped_kdata_end = .;
28	}	28	}
29		29
30	.mapped (PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)+SIZEOF(.unmapped)) : AT (BOOTSTRAP_OFFSET+SIZEOF(.unmapped)) {	30	.mapped (PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)+SIZEOF(.unmapped)) : AT (BOOTSTRAP_OFFSET+SIZEOF(.unmapped)) {
31	ktext_start = .;	31	ktext_start = .;
32	*(BOOT_DATA);	32	*(BOOT_DATA);
33	*(.text);	33	*(.text);
34	ktext_end = .;	34	ktext_end = .;
35		35
36	kdata_start = .;	36	kdata_start = .;
37	(.data); / initialized data */	37	(.data); / initialized data */
38	(.rodata); /* string literals */	38	(.rodata); /* string literals */
39	hardcoded_load_address = .;	39	hardcoded_load_address = .;
40	QUAD(PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET));	40	QUAD(PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET));
41	hardcoded_ktext_size = .;	41	hardcoded_ktext_size = .;
42	QUAD(ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start));	42	QUAD(ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start));
43	hardcoded_kdata_size = .;	43	hardcoded_kdata_size = .;
44	QUAD(kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start));	44	QUAD(kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start));
45	hardcoded_unmapped_ktext_size = .;	45	hardcoded_unmapped_ktext_size = .;
46	LONG(unmapped_ktext_end - unmapped_ktext_start);	46	LONG(unmapped_ktext_end - unmapped_ktext_start);
47	hardcoded_unmapped_kdata_size = .;	47	hardcoded_unmapped_kdata_size = .;
48	LONG(unmapped_kdata_end - unmapped_kdata_start);	48	LONG(unmapped_kdata_end - unmapped_kdata_start);
49	(COMMON); / global variables */	49	(COMMON); / global variables */
50		50
51		51
52		52
53	*(.eh_frame);	53	*(.eh_frame);
54	(.bss); / uninitialized static variables */	54	(.bss); / uninitialized static variables */
55	*(K_DATA_END);	55	*(K_DATA_END);
56		56
57	symbol_table = .;	57	symbol_table = .;
58	(symtab.); /* Symbol table, must be LAST symbol!*/	58	(symtab.); /* Symbol table, must be LAST symbol!*/
59		59
60	kdata_end = .;	60	kdata_end = .;
61	}	61	}
62		62
63	_hardcoded_kernel_size = (ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start) + (kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start);	63	_hardcoded_kernel_size = (ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start) + (kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start);
64		64
-		65	/* Symbols that need to be accessed both from real mode & long mode */
-		66	/* e820_boot is real mode (pre-above-1MB-move), e820 is */
-		67	/* kernel mapped above-1MB-physical copied symbol */
65	e820table_boot = KA2PA(e820table) - BOOT_OFFSET;	68	e820table_boot = KA2PA(e820table) - BOOT_OFFSET;
66	e820counter_boot = KA2PA(e820counter) - BOOT_OFFSET;	69	e820counter_boot = KA2PA(e820counter) - BOOT_OFFSET;
-		70
-		71	/* real_bootstrap_gdtr is mapped real_bootstrap_gdtr_boot */
-		72	/* It is physically outside of kernel area, we have to access */
-		73	/* it after modification from long mode for booting */
-		74	/* SMP slave processors */
67	real_bootstrap_gdtr = PA2KA(real_bootstrap_gdtr_boot);	75	real_bootstrap_gdtr = PA2KA(real_bootstrap_gdtr_boot);
68	}	76	}
69		77

Subversion Repositories HelenOS

(root)/SPARTAN/trunk/arch/amd64/_link.ld.in – Rev 301 → 332