lfn
serial
ticket/834-toolchain-update
topic/msim-upgrade
topic/simplify-dev-export
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Last change
on this file since ac5d02b was ac5d02b, checked in by Jakub Jermar <jakub@…>, 20 years ago |
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IA-32 fixes.
Use kernel addresses instead of physical addresses in map_page_to_frame().
Physical addresses are supposed to only be exported to mm hardware.
Because of this fix, userspace is functional again.
Remap EGA videoram to (0x80000000 + videoram) and change the ega driver to work with the new address.
Minor cosmetics through out the code.
Changes in linker scripts.
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Property mode
set to
100644
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File size:
961 bytes
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| 1 | /** IA-32 linker script
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| 2 | *
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| 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 |
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| 11 | OUTPUT_FORMAT(binary)
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| 12 | ENTRY(kernel_image_start)
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| 13 |
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| 14 | SECTIONS {
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| 15 | .unmapped 0x8000: AT (0x8000) {
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| 16 | unmapped_ktext_start = .;
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| 17 | *(K_TEXT_START);
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| 18 | unmapped_ktext_end = .;
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| 19 | unmapped_kdata_start = .;
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| 20 | *(K_DATA_START);
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| 21 | unmapped_kdata_end = .;
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| 22 | }
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| 23 |
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| 24 | .mapped (0x80000000+SIZEOF(.unmapped)+0x8000) : AT (0x8000+SIZEOF(.unmapped)) {
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| 25 | ktext_start = .;
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| 26 | *(.text);
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| 27 | ktext_end = .;
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| 28 |
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| 29 | kdata_start = .;
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| 30 | *(.data); /* initialized data */
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| 31 | *(.rodata*); /* string literals */
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| 32 | *(COMMON); /* global variables */
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| 33 | *(.bss); /* uninitialized static variables */
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| 34 | *(K_DATA_END);
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| 35 | kdata_end = .;
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| 36 | }
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| 37 |
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| 38 | _hardcoded_ktext_size = ktext_end - ktext_start + (unmapped_ktext_end - unmapped_ktext_start);
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| 39 | _hardcoded_kdata_size = kdata_end - kdata_start + (unmapped_kdata_end - unmapped_kdata_start);
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| 40 | _hardcoded_load_address = 0x80008000;
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| 41 |
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| 42 | }
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