| /****************************************************************************** |
| * Copyright (c) 2004, 2007 IBM Corporation |
| * All rights reserved. |
| * This program and the accompanying materials |
| * are made available under the terms of the BSD License |
| * which accompanies this distribution, and is available at |
| * http://www.opensource.org/licenses/bsd-license.php |
| * |
| * Contributors: |
| * IBM Corporation - initial implementation |
| *****************************************************************************/ |
| |
| #include "macros.h" |
| #include "../../llfw/boot_abort.h" |
| |
| /*#################### defines #####################*/ |
| #define STACK_SIZE 0x4000 |
| |
| /*#################### code ########################*/ |
| .text |
| .globl .gluon_c_entry |
| .globl __toc_start |
| .globl __toc_end |
| .globl __stack_end |
| .globl __bss_start |
| .globl __bss_size |
| .globl __start |
| |
| ASM_ENTRY(__startC) |
| /* clear out bss section */ |
| LOAD64(r3, (__bss_start - 8)) |
| LOAD64(r4, __bss_size) |
| |
| /* divide __bss_size by 8 to get number */ |
| /* of dwords to clear */ |
| srwi. r4, r4, 3 |
| beq bsscdone |
| li r5, 0 |
| mtctr r4 |
| bssc: stdu r5, 8(r3) |
| bdnz bssc |
| bsscdone: |
| /* setup stack */ |
| LOAD64(r1, __stack_end + STACK_SIZE) |
| |
| /* save return address beside stack */ |
| addi r3, r1, 128 |
| mflr r0 |
| std r0, 0(r3) |
| |
| /* setup toc */ |
| bl toc_init |
| |
| /* ------------------------------------ */ |
| /* jump to c-code */ |
| /* r10 = cpu_init_slave address - r3 */ |
| /* r11 = slave_setup address - r4 */ |
| /* ------------------------------------ */ |
| mr r3, r10 |
| mr r4, r11 |
| bl .early_c_entry |
| |
| /* return to caller... */ |
| LOAD64(r1, __stack_end + STACK_SIZE) |
| addi r1, r1, 128 |
| ld r3, 0(r1) |
| mtlr r3 |
| blr |
| |
| /* #################################### */ |
| /* Basic Additional Functions */ |
| /* for extended lib functions see */ |
| /* external library */ |
| /* #################################### */ |
| .align 2 |
| |
| /* ------------------------------------ */ |
| /* updates toc in r2 */ |
| /* ------------------------------------ */ |
| ASM_ENTRY(toc_init) |
| LOAD64(r2, __toc_start) |
| addi r2,r2,0x4000 |
| addi r2,r2,0x4000 |
| blr |
| |
| /* ------------------------------------ */ |
| /* stores arg#1 in r27 and stops */ |
| /* ------------------------------------ */ |
| ENTRY(do_panic) |
| ENTRY(halt_sys) |
| BOOT_ABORT_R3HINT(ABORT_CANIO, ALTBOOT, msg_e_ierror); |
