Messages in this thread | | | Date | Fri, 02 Mar 2012 02:03:54 +0100 | From | Richard Weinberger <> | Subject | OpenRISC: Module loader broken |
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Hi!
The OpenRISC module loader is broken. It explodes somewhere in apply_relocate_add(). This function is anyway fishy: case R_OR32_CONST: location = (uint16_t *)location + 1; *((uint16_t *)location) = (uint16_t) (value); break; case R_OR32_CONSTH: location = (uint16_t *)location + 1; *((uint16_t *)location) = (uint16_t) (value >> 16); break;
Why the cast to (uint16_t *)?
---cut--- # insmod ext2.ko KERNEL: Unaligned Access 0xbc13b68e CPU #: 0 PC: c0007864 SR: 0000827f SP: c172fe28 GPR00: 00000000 GPR01: c172fe28 GPR02: bc0dd298 GPR03: c0690000 GPR04: 00000001 GPR05: bc13b68e GPR06: bc1363fc GPR07: bc13b6e4 GPR08: bc127f6c GPR09: c00528c4 GPR10: c172e000 GPR11: 00000000 GPR12: 00000000 GPR13: c0a068c0 GPR14: bc0d9138 GPR15: 00000001 GPR16: 00000000 GPR17: 00000004 GPR18: bc0d9570 GPR19: fffffffc GPR20: bc0d8f30 GPR21: 00000003 GPR22: 0000000c GPR23: 0000000b GPR24: bc13b6f0 GPR25: 48151139 GPR26: c172fe6c GPR27: fffffff9 GPR28: c066538c GPR29: c005194c GPR30: 00000004 GPR31: b496906d RES: 00000000 oGPR11: 00000000 syscallno: 00000000 Process insmod (pid: 126, stackpage=c16aeae0)
Stack: Stack dump [0xc172fd1c]: sp + 00: 0xc172fe28 sp + 04: 0xbc0dd298 sp + 08: 0xc0690000 sp + 12: 0x00000001 sp + 16: 0xbc13b68e sp + 20: 0xbc1363fc sp + 24: 0xbc13b6e4 sp + 28: 0xbc127f6c sp + 32: 0xc00528c4 sp + 36: 0xc172e000 sp + 40: 0x00000000 sp + 44: 0x00000000 sp + 48: 0xc0a068c0 sp + 52: 0xbc0d9138 sp + 56: 0x00000001 sp + 60: 0x00000000 sp + 64: 0x00000004 sp + 68: 0xbc0d9570 sp + 72: 0xfffffffc sp + 76: 0xbc0d8f30 sp + 80: 0x00000003 sp + 84: 0x0000000c sp + 88: 0x0000000b sp + 92: 0xbc13b6f0 sp + 96: 0x48151139 sp + 100: 0xc172fe6c sp + 104: 0xfffffff9 sp + 108: 0xc066538c sp + 112: 0xc005194c sp + 116: 0x00000004 sp + 120: 0xb496906d sp + 124: 0xc0007864 sp + 128: 0x00000000 sp + 132: 0x00000000 sp + 136: 0xc172fdd4 sp + 140: 0xc00514c4 sp + 144: 0x00000000 sp + 148: 0x00000000 sp + 152: 0x00000000 sp + 156: 0xbc129290 sp + 160: 0xbc12929a sp + 164: 0xc0051584 sp + 168: 0xbc139e00 sp + 172: 0x00000000 sp + 176: 0x00000004 sp + 180: 0xbc13b7c4 sp + 184: 0x6b65726e sp + 188: 0x656c0000 sp + 192: 0x00000000 sp + 196: 0x00000000 sp + 200: 0x00000000 sp + 204: 0x00000000 sp + 208: 0x00000000 sp + 212: 0x00000000 sp + 216: 0x00000000 sp + 220: 0x00000000 sp + 224: 0x00000000 sp + 228: 0x00000000 sp + 232: 0x00000000 sp + 236: 0x00000000 sp + 240: 0x00000000 sp + 244: 0x00000088 sp + 248: 0xbc03b850 sp + 252: 0x0000002a sp + 256: 0x001360cd sp + 260: 0x00000690 sp + 264: 0xc06653b0 sp + 268: 0x00000000 sp + 272: 0xbc13b6e4 sp + 276: 0x00000004 sp + 280: 0x0000000d sp + 284: 0xbc13b6e4 sp + 288: 0x00000208 sp + 292: 0x001360cd sp + 296: 0x00000000 sp + 300: 0xbc13b6f0 sp + 304: 0xc00528c4 sp + 308: 0x00000000 sp + 312: 0x00000000 sp + 316: 0x00000000 sp + 320: 0x000fc450 sp + 324: 0x00000003 sp + 328: 0x0000d7cc sp + 332: 0x0000d7cc sp + 336: 0xbc02e000 sp + 340: 0x000fc450 sp + 344: 0xbc0d8f30 sp + 348: 0xbc0d8dc1 sp + 352: 0xbc12929c sp + 356: 0x00000000 sp + 360: 0x00000000 sp + 364: 0x00000000 sp + 368: 0x00000000 sp + 372: 0x00000028 sp + 376: 0x00000029 sp + 380: 0x00000011 sp + 384: 0x00000000 sp + 388: 0x0000000e sp + 392: 0x00000000 sp + 396: 0xc16c8750 sp + 400: 0xc16c8750 sp + 404: 0xc10e1644 sp + 408: 0xc00b1200 sp + 412: 0x00000000 sp + 416: 0xc16c8750 sp + 420: 0xc1695950 sp + 424: 0x7fb4bec8 sp + 428: 0x001360cd sp + 432: 0x00000069 sp + 436: 0x7fb4becc sp + 440: 0x00000f2c sp + 444: 0x00000000 sp + 448: 0x7fb4bec4 sp + 452: 0x7f967b5c sp + 456: 0x0013e254 sp + 460: 0x00000000 sp + 464: 0xc00055a4 sp + 468: 0x0000847e sp + 472: 0x7fb4bc94 sp + 476: 0x7fb4bec8 sp + 480: 0x30000008 sp + 484: 0x000fc450 sp + 488: 0x001360cd sp + 492: 0x00000022 sp + 496: 0x00000000 sp + 500: 0x00000000 sp + 504: 0x0001b730 sp + 508: 0x00000000 sp + 512: 0x00000069 sp + 516: 0x00000000 sp + 520: 0x0010b08c sp + 524: 0x000fe000 sp + 528: 0x0000847e sp + 532: 0x00000048 sp + 536: 0xfffffff9 sp + 540: 0x000fc801 sp + 544: 0x00008079 sp + 548: 0x000fc800 sp + 552: 0x00000003 sp + 556: 0x00000003 sp + 560: 0x00000001 sp + 564: 0x7fb4bec4 sp + 568: 0x48151139 sp + 572: 0x00001fff sp + 576: 0xfffffff9 sp + 580: 0x0013e254 sp + 584: 0x00008079 sp + 588: 0x00000000 sp + 592: 0xb496906d sp + 596: 0x000eb380 sp + 600: 0x00000069 sp + 604: 0x00000069 sp + 608: 0x00000002 sp + 612: 0x00000000 sp + 616: 0x00000000 sp + 620: 0x00000000 sp + 624: 0x00000000 sp + 628: 0x00000000 sp + 632: 0x00000000 sp + 636: 0x00000000 sp + 640: 0x00000000 sp + 644: 0x00000000 sp + 648: 0x00000000 sp + 652: 0x00000000 sp + 656: 0x00000000 sp + 660: 0x00000000 sp + 664: 0x00000000 sp + 668: 0x00000000 sp + 672: 0x00000000 sp + 676: 0x00000000 sp + 680: 0x00000000 sp + 684: 0x00000000 sp + 688: 0x00000000 sp + 692: 0x00000000 sp + 696: 0x00000000 sp + 700: 0x00000000 sp + 704: 0x00000000 sp + 708: 0x00000000 sp + 712: 0x00000000 sp + 716: 0x00000000 sp + 720: 0x00000000 sp + 724: 0x00000000 sp + 728: 0x00000000 sp + 732: 0x00000000 sp + 736: 0x00000000
[<c00528c4>] [<c005194c>] [<c0007864>] [<c00514c4>] [<c0051584>] [<c00528c4>] [<c00b1200>] [<c00055a4>] =======================
Code: 86 c1 ff f4 44 00 48 00 87 01 ff f8 b8 c6 00 50 03 ff ff c3 dc 05 30 02 (03) ff ff c1 d4 05 30 00 d7 e1 17 dc a8 43 00 00 18 60 bb ff d7 e1 77 e0 ---cut---
Thanks, //richard
P.s: Tested with Jonas Linux tree as of today.
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