| 43,56 → 43,8 |
|---|
| |
| .global kernel_image_start |
| kernel_image_start: |
| 0: |
| b 1f |
| nop |
| |
| /* |
| * This header forces SILO to load the kernel at 0x4000. |
| * More precisely, SILO will think this is an old version of Linux. |
| */ |
| .ascii "HdrS" |
| .word 0 |
| .half 0 |
| |
| .align 8 |
| |
| 1: |
| flushw ! flush all but the active register window |
| |
| /* |
| * Prepare to copy the kernel image to 4M. |
| */ |
| |
| set LMA, %g1 ! source address |
| set VMA, %g2 ! destination address |
| set hardcoded_ktext_size, %g3 ! link address of hardcoded_ktext_size |
| set hardcoded_kdata_size, %g4 ! link address of hardcoded_kdata_size |
| |
| sub %g3, %g2, %g3 ! offset of hardcoded_ktext_size from the beginning of the load address |
| sub %g4, %g2, %g4 ! offset of hardcoded_kdata_size from the beginning of the load address |
| |
| ldx [%g3 + %g1], %g3 ! hardcoded_ktext_size -> %g3 |
| ldx [%g4 + %g1], %g4 ! hardcoded_kdata_size -> %g4 |
| |
| add %g3, %g4, %g3 ! size of kernel text and data |
| |
| /* |
| * Start copying the kernel from higher addresses towards lower addresses. |
| */ |
| |
| 2: dec %g3 |
| ldub [%g1 + %g3], %g4 |
| stb %g4, [%g2 + %g3] |
| cmp %g3, 0 |
| bnz 2b |
| nop |
| |
| set relocated, %g1 |
| jmp %g1 |
| nop |
| |
| relocated: |
| set ofw, %l0 |
| |
| call ofw_init |