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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [powerpc/] [shared/] [vectors/] [vectors_init.c] - Rev 593
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/* * vectors_init.c Exception hanlding initialisation (and generic handler). * * This include file describe the data structure and the functions implemented * by rtems to handle exceptions. * * CopyRight (C) 1999 valette@crf.canon.fr * * The license and distribution terms for this file may be * found in found in the file LICENSE in this distribution or at * http://www.OARcorp.com/rtems/license.html. * * $Id: vectors_init.c,v 1.2 2001-09-27 12:01:09 chris Exp $ */ #include <bsp/vectors.h> #include <libcpu/raw_exception.h> #include <bsp.h> static rtems_raw_except_global_settings exception_config; static rtems_raw_except_connect_data exception_table[LAST_VALID_EXC + 1]; exception_handler_t globalExceptHdl; void C_exception_handler(BSP_Exception_frame* excPtr) { int recoverable = 0; printk("exception handler called for exception %d\n", excPtr->_EXC_number); printk("\t Next PC or Address of fault = %x\n", excPtr->EXC_SRR0); printk("\t Saved MSR = %x\n", excPtr->EXC_SRR1); printk("\t R0 = %x\n", excPtr->GPR0); printk("\t R1 = %x\n", excPtr->GPR1); printk("\t R2 = %x\n", excPtr->GPR2); printk("\t R3 = %x\n", excPtr->GPR3); printk("\t R4 = %x\n", excPtr->GPR4); printk("\t R5 = %x\n", excPtr->GPR5); printk("\t R6 = %x\n", excPtr->GPR6); printk("\t R7 = %x\n", excPtr->GPR7); printk("\t R8 = %x\n", excPtr->GPR8); printk("\t R9 = %x\n", excPtr->GPR9); printk("\t R10 = %x\n", excPtr->GPR10); printk("\t R11 = %x\n", excPtr->GPR11); printk("\t R12 = %x\n", excPtr->GPR12); printk("\t R13 = %x\n", excPtr->GPR13); printk("\t R14 = %x\n", excPtr->GPR14); printk("\t R15 = %x\n", excPtr->GPR15); printk("\t R16 = %x\n", excPtr->GPR16); printk("\t R17 = %x\n", excPtr->GPR17); printk("\t R18 = %x\n", excPtr->GPR18); printk("\t R19 = %x\n", excPtr->GPR19); printk("\t R20 = %x\n", excPtr->GPR20); printk("\t R21 = %x\n", excPtr->GPR21); printk("\t R22 = %x\n", excPtr->GPR22); printk("\t R23 = %x\n", excPtr->GPR23); printk("\t R24 = %x\n", excPtr->GPR24); printk("\t R25 = %x\n", excPtr->GPR25); printk("\t R26 = %x\n", excPtr->GPR26); printk("\t R27 = %x\n", excPtr->GPR27); printk("\t R28 = %x\n", excPtr->GPR28); printk("\t R29 = %x\n", excPtr->GPR29); printk("\t R30 = %x\n", excPtr->GPR30); printk("\t R31 = %x\n", excPtr->GPR31); printk("\t CR = %x\n", excPtr->EXC_CR); printk("\t CTR = %x\n", excPtr->EXC_CTR); printk("\t XER = %x\n", excPtr->EXC_XER); printk("\t LR = %x\n", excPtr->EXC_LR); printk("\t MSR = %x\n", excPtr->EXC_MSR); if (excPtr->_EXC_number == ASM_DEC_VECTOR) recoverable = 1; if (excPtr->_EXC_number == ASM_SYS_VECTOR) #ifdef TEST_RAW_EXCEPTION_CODE recoverable = 1; #else recoverable = 0; #endif if (!recoverable) { printk("unrecoverable exception!!! Push reset button\n"); while(1); } } void nop_except_enable(const rtems_raw_except_connect_data* ptr) { } int except_always_enabled(const rtems_raw_except_connect_data* ptr) { return 1; } void initialize_exceptions() { int i; /* * Initialize pointer used by low level execption handling */ globalExceptHdl = C_exception_handler; /* * Put default_exception_vector_code_prolog at relevant exception * code entry addresses */ exception_config.exceptSize = LAST_VALID_EXC + 1; exception_config.rawExceptHdlTbl = &exception_table[0]; exception_config.defaultRawEntry.exceptIndex = 0; exception_config.defaultRawEntry.hdl.vector = 0; exception_config.defaultRawEntry.hdl.raw_hdl = default_exception_vector_code_prolog; /* * Note that next line the '&' before default_exception_vector_code_prolog_size * is not a bug as it is defined a .set directly in asm... */ exception_config.defaultRawEntry.hdl.raw_hdl_size = (unsigned) &default_exception_vector_code_prolog_size; for (i=0; i <= exception_config.exceptSize; i++) { if (!mpc750_vector_is_valid (i)) { continue; } exception_table[i].exceptIndex = i; exception_table[i].hdl = exception_config.defaultRawEntry.hdl; exception_table[i].hdl.vector = i; exception_table[i].on = nop_except_enable; exception_table[i].off = nop_except_enable; exception_table[i].isOn = except_always_enabled; } if (!mpc60x_init_exceptions(&exception_config)) { BSP_panic("Exception handling initialization failed\n"); } else { printk("Exception handling initialization done\n"); } }
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