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1.1 ! root 1: /****************************************************************************** ! 2: * Copyright (c) 2004, 2008 IBM Corporation ! 3: * All rights reserved. ! 4: * This program and the accompanying materials ! 5: * are made available under the terms of the BSD License ! 6: * which accompanies this distribution, and is available at ! 7: * http://www.opensource.org/licenses/bsd-license.php ! 8: * ! 9: * Contributors: ! 10: * IBM Corporation - initial implementation ! 11: *****************************************************************************/ ! 12: ! 13: ! 14: #include <macros.h> ! 15: .section .lowmem,"aw",@progbits ! 16: ! 17: .irp i, 0x0200,0x0300,0x0380,0x0400,0x0480,0x0500,0x0600,0x0700, \ ! 18: 0x0800,0x0900,0x0a00,0x0b00 ! 19: . = \i - 0x200 ! 20: // 0 ! 21: stdu r1, -0x58(r1) ! 22: std r0, 0x30(r1) ! 23: mflr r0 ! 24: std r0, 0x38(r1) ! 25: // 10 ! 26: mfsrr0 r0 ! 27: std r0, 0x48(r1) ! 28: mfsrr1 r0 ! 29: std r0, 0x50(r1) ! 30: // 20 ! 31: std r11, 0x40(r1) ! 32: li r0, \i ! 33: ld r11, 0x60 + \i(0) ! 34: bl _exception_handler ! 35: ! 36: // 30 ! 37: ld r0, 0x48(r1) ! 38: mtsrr0 r0 ! 39: ld r0, 0x50(r1) ! 40: mtsrr1 r0 ! 41: ! 42: // 40 ! 43: ld r0, 0x38(r1) ! 44: mtlr r0 ! 45: ld r0, 0x30(r1) ! 46: ld r11, 0x40(r1) ! 47: // 50 ! 48: addi r1, r1, 0x58 ! 49: rfid ! 50: nop ! 51: nop ! 52: // 60 ! 53: // .quad \i+0x68 ! 54: .quad .exception_forward ! 55: // 68 ! 56: blr ! 57: .endr ! 58: ! 59: # System call entry ! 60: . = 0xc00 - 0x200 ! 61: ! 62: stdu r1, -0x50(r1) ! 63: mflr r11 ! 64: std r11, 0x30(r1) ! 65: mfsrr0 r11 ! 66: std r11, 0x40(r1) ! 67: mfsrr1 r11 ! 68: std r11, 0x48(r1) ! 69: ld r11, _system_call@got(r2) ! 70: ld r11, 0(r11) ! 71: mtctr r11 ! 72: mr r10, r0 ! 73: bctrl ! 74: ld r11, 0x30(r1) ! 75: mtlr r11 ! 76: ld r11, 0x40(r1) ! 77: mtsrr0 r11 ! 78: ld r11, 0x48(r1) ! 79: mtsrr1 r11 ! 80: addi r1, r1, 0x50 ! 81: rfid ! 82: ! 83: .irp i, 0x0d00,0x0e00,0x0f00, \ ! 84: 0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700, \ ! 85: 0x1800,0x1900,0x1a00,0x1b00,0x1c00,0x1d00,0x1e00,0x1f00, \ ! 86: 0x2000,0x2100,0x2200,0x2300,0x2400,0x2500,0x2600,0x2700, \ ! 87: 0x2800,0x2900,0x2a00,0x2b00,0x2c00,0x2d00,0x2e00,0x2f00 ! 88: . = \i - 0x200 ! 89: // 0 ! 90: stdu r1, -0x58(r1) ! 91: std r0, 0x30(r1) ! 92: mflr r0 ! 93: std r0, 0x38(r1) ! 94: // 10 ! 95: mfsrr0 r0 ! 96: std r0, 0x48(r1) ! 97: mfsrr1 r0 ! 98: std r0, 0x50(r1) ! 99: // 20 ! 100: std r11, 0x40(r1) ! 101: li r0, \i ! 102: ld r11, 0x60 + \i(0) ! 103: bl _exception_handler ! 104: ! 105: // 30 ! 106: ld r0, 0x48(r1) ! 107: mtsrr0 r0 ! 108: ld r0, 0x50(r1) ! 109: mtsrr1 r0 ! 110: ! 111: // 40 ! 112: ld r0, 0x38(r1) ! 113: mtlr r0 ! 114: ld r0, 0x30(r1) ! 115: ld r11, 0x40(r1) ! 116: // 50 ! 117: addi r1, r1, 0x58 ! 118: rfid ! 119: nop ! 120: nop ! 121: // 60 ! 122: // .quad \i+0x68 ! 123: .quad .exception_forward ! 124: // 68 ! 125: blr ! 126: .endr ! 127: ! 128: /* Saves all register potential clobbered in exception handler. ! 129: In r0 the pointer to the function is passed. ! 130: */ ! 131: ! 132: _exception_handler: ! 133: stdu r1, -0x130(r1) ! 134: .irp i, 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16, \ ! 135: 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, \ ! 136: 27, 28, 29, 30, 31 ! 137: std r\i, 0x30+\i*8 (r1) ! 138: .endr ! 139: mfctr r14 ! 140: std r14,0x130(r1) ! 141: mtctr r11 ! 142: ! 143: LOAD64(r3,_entry) ! 144: ld r2,8(r3) ! 145: ! 146: ld r3,exception_stack_frame@got(r2) ! 147: std r1,0(r3) ! 148: ! 149: ! 150: mflr r14 ! 151: bctrl ! 152: mtlr r14 ! 153: ! 154: ld r14,0x130(r1) ! 155: mtctr r14 ! 156: /* ! 157: mfsrr0 r2 ! 158: addi r2, r2, 4 ! 159: mtsrr0 r2 ! 160: */ ! 161: .irp i, 2,3,4,5,6,7,8,9,10,12,13,14,15,16, \ ! 162: 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, \ ! 163: 27, 28, 29, 30, 31 ! 164: ld r\i, 0x30+\i*8 (r1) ! 165: .endr ! 166: addi r1, r1, 0x130 ! 167: blr ! 168: ! 169: .text ! 170: ! 171: /* Set exception handler for given exception vector. ! 172: r3: exception vector offset ! 173: r4: exception handler ! 174: */ ! 175: .globl .set_exception ! 176: .set_exception: ! 177: .globl set_exception ! 178: set_exception: ! 179: ld r4,0x0(r4) ! 180: .globl .set_exception_asm ! 181: .set_exception_asm: ! 182: .globl set_exception_asm ! 183: set_exception_asm: ! 184: std r4, 0x60(r3) # fixme diff 1f - 0b ! 185: blr ! 186:
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