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1 | /** IA-32 linker script |
1 | /** IA-32 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__ |
- | |
12 | #include <arch/boot/boot.h> |
11 | #include <arch/boot/boot.h> |
13 | #include <arch/mm/page.h> |
12 | #include <arch/mm/page.h> |
14 | 13 | ||
15 | SECTIONS { |
14 | SECTIONS { |
16 | .unmapped BOOT_OFFSET: AT (0) { |
15 | .unmapped BOOT_OFFSET: AT (0) { |
17 | unmapped_ktext_start = .; |
16 | unmapped_ktext_start = .; |
18 | *(K_TEXT_START); |
17 | *(K_TEXT_START); |
19 | unmapped_ktext_end = .; |
18 | unmapped_ktext_end = .; |
20 | 19 | ||
21 | unmapped_kdata_start = .; |
20 | unmapped_kdata_start = .; |
22 | *(K_DATA_START); |
21 | *(K_DATA_START); |
23 | unmapped_kdata_end = .; |
22 | unmapped_kdata_end = .; |
24 | } |
23 | } |
25 | 24 | ||
26 | .mapped (PA2KA(BOOT_OFFSET)+SIZEOF(.unmapped)): AT (SIZEOF(.unmapped)) { |
25 | .mapped (PA2KA(BOOT_OFFSET)+SIZEOF(.unmapped)): AT (SIZEOF(.unmapped)) { |
27 | ktext_start = .; |
26 | ktext_start = .; |
28 | *(.text); |
27 | *(.text); |
29 | ktext_end = .; |
28 | ktext_end = .; |
30 | 29 | ||
31 | kdata_start = .; |
30 | kdata_start = .; |
32 | *(.data); /* initialized data */ |
31 | *(.data); /* initialized data */ |
33 | *(.rodata*); /* string literals */ |
32 | *(.rodata*); /* string literals */ |
34 | *(COMMON); /* global variables */ |
33 | *(COMMON); /* global variables */ |
35 | hardcoded_load_address = .; |
34 | hardcoded_load_address = .; |
36 | LONG(PA2KA(BOOT_OFFSET)); |
35 | LONG(PA2KA(BOOT_OFFSET)); |
37 | hardcoded_ktext_size = .; |
36 | hardcoded_ktext_size = .; |
38 | LONG((ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start)); |
37 | LONG((ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start)); |
39 | hardcoded_kdata_size = .; |
38 | hardcoded_kdata_size = .; |
40 | LONG((kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start)); |
39 | LONG((kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start)); |
41 | hardcoded_unmapped_ktext_size = .; |
40 | hardcoded_unmapped_ktext_size = .; |
42 | LONG(unmapped_ktext_end - unmapped_ktext_start); |
41 | LONG(unmapped_ktext_end - unmapped_ktext_start); |
43 | hardcoded_unmapped_kdata_size = .; |
42 | hardcoded_unmapped_kdata_size = .; |
44 | LONG(unmapped_kdata_end - unmapped_kdata_start); |
43 | LONG(unmapped_kdata_end - unmapped_kdata_start); |
45 | symbol_table = .; |
44 | symbol_table = .; |
46 | *(symtab.*); /* Symbol table, must be LAST symbol! */ |
45 | *(symtab.*); /* Symbol table, must be LAST symbol! */ |
47 | *(.bss); /* uninitialized static variables */ |
46 | *(.bss); /* uninitialized static variables */ |
48 | kdata_end = .; |
47 | kdata_end = .; |
49 | } |
48 | } |
50 | 49 | ||
51 | /DISCARD/ : { |
50 | /DISCARD/ : { |
52 | *(.note.GNU-stack); |
51 | *(.note.GNU-stack); |
53 | *(.comment); |
52 | *(.comment); |
54 | } |
53 | } |
55 | 54 | ||
56 | #ifdef CONFIG_SMP |
55 | #ifdef CONFIG_SMP |
57 | 56 | ||
58 | _hardcoded_unmapped_size = (unmapped_ktext_end - unmapped_ktext_start) + (unmapped_kdata_end - unmapped_kdata_start); |
57 | _hardcoded_unmapped_size = (unmapped_ktext_end - unmapped_ktext_start) + (unmapped_kdata_end - unmapped_kdata_start); |
59 | ap_boot = unmapped_ap_boot - BOOT_OFFSET + AP_BOOT_OFFSET; |
58 | ap_boot = unmapped_ap_boot - BOOT_OFFSET + AP_BOOT_OFFSET; |
60 | ap_gdtr = unmapped_ap_gdtr - BOOT_OFFSET + AP_BOOT_OFFSET; |
59 | ap_gdtr = unmapped_ap_gdtr - BOOT_OFFSET + AP_BOOT_OFFSET; |
61 | protected_ap_gdtr = PA2KA(ap_gdtr); |
60 | protected_ap_gdtr = PA2KA(ap_gdtr); |
62 | 61 | ||
63 | #endif /* CONFIG_SMP */ |
62 | #endif /* CONFIG_SMP */ |
64 | 63 | ||
65 | } |
64 | } |
66 | 65 |