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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 178 | palkovsky | 1 | /** AMD64 linker script |
| 164 | palkovsky | 2 | * |
| 3 | * umapped section: |
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| 4 | * kernel text |
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| 5 | * kernel data |
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| 6 | * mapped section: |
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| 7 | * kernel text |
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| 8 | * kernel data |
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| 9 | */ |
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| 10 | |||
| 289 | palkovsky | 11 | #define __ASM__ |
| 12 | #include <arch/boot/boot.h> |
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| 13 | #include <arch/mm/page.h> |
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| 14 | |||
| 164 | palkovsky | 15 | OUTPUT_FORMAT(binary) |
| 16 | ENTRY(kernel_image_start) |
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| 17 | |||
| 18 | SECTIONS { |
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| 289 | palkovsky | 19 | .unmapped BOOTSTRAP_OFFSET: AT (BOOTSTRAP_OFFSET) { |
| 164 | palkovsky | 20 | unmapped_ktext_start = .; |
| 21 | *(K_TEXT_START); |
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| 22 | *(K_TEXT_START_2); |
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| 23 | unmapped_ktext_end = .; |
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| 275 | palkovsky | 24 | |
| 164 | palkovsky | 25 | unmapped_kdata_start = .; |
| 26 | *(K_DATA_START); |
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| 27 | unmapped_kdata_end = .; |
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| 28 | } |
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| 29 | |||
| 289 | palkovsky | 30 | .mapped (PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)+SIZEOF(.unmapped)) : AT (BOOTSTRAP_OFFSET+SIZEOF(.unmapped)) { |
| 164 | palkovsky | 31 | ktext_start = .; |
| 243 | palkovsky | 32 | *(BOOT_DATA); |
| 164 | palkovsky | 33 | *(.text); |
| 34 | ktext_end = .; |
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| 35 | |||
| 36 | kdata_start = .; |
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| 37 | *(.data); /* initialized data */ |
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| 38 | *(.rodata*); /* string literals */ |
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| 216 | palkovsky | 39 | hardcoded_load_address = .; |
| 301 | palkovsky | 40 | QUAD(PA2KA(BOOT_OFFSET+BOOTSTRAP_OFFSET)); |
| 216 | palkovsky | 41 | hardcoded_ktext_size = .; |
| 42 | QUAD(ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start)); |
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| 43 | hardcoded_kdata_size = .; |
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| 44 | QUAD(kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start)); |
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| 275 | palkovsky | 45 | hardcoded_unmapped_ktext_size = .; |
| 46 | LONG(unmapped_ktext_end - unmapped_ktext_start); |
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| 47 | hardcoded_unmapped_kdata_size = .; |
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| 48 | LONG(unmapped_kdata_end - unmapped_kdata_start); |
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| 268 | palkovsky | 49 | *(COMMON); /* global variables */ |
| 50 | |||
| 216 | palkovsky | 51 | *(.eh_frame); |
| 164 | palkovsky | 52 | *(.bss); /* uninitialized static variables */ |
| 268 | palkovsky | 53 | |
| 54 | symbol_table = .; |
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| 55 | *(symtab.*); /* Symbol table, must be LAST symbol!*/ |
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| 56 | |||
| 164 | palkovsky | 57 | kdata_end = .; |
| 58 | } |
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| 282 | palkovsky | 59 | |
| 60 | _hardcoded_kernel_size = (ktext_end - ktext_start) + (unmapped_ktext_end - unmapped_ktext_start) + (kdata_end - kdata_start) + (unmapped_kdata_end - unmapped_kdata_start); |
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| 277 | palkovsky | 61 | |
| 332 | palkovsky | 62 | /* Symbols that need to be accessed both from real mode & long mode */ |
| 63 | /* e820*_boot is real mode (pre-above-1MB-move), e820* is */ |
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| 64 | /* kernel mapped above-1MB-physical copied symbol */ |
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| 289 | palkovsky | 65 | e820table_boot = KA2PA(e820table) - BOOT_OFFSET; |
| 66 | e820counter_boot = KA2PA(e820counter) - BOOT_OFFSET; |
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| 332 | palkovsky | 67 | |
| 68 | /* real_bootstrap_gdtr is mapped real_bootstrap_gdtr_boot */ |
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| 69 | /* It is physically outside of kernel area, we have to access */ |
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| 70 | /* it after modification from long mode for booting */ |
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| 71 | /* SMP slave processors */ |
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| 289 | palkovsky | 72 | real_bootstrap_gdtr = PA2KA(real_bootstrap_gdtr_boot); |
| 164 | palkovsky | 73 | } |