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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [librdbg/] [src/] [powerpc/] [excep_f.c] - Rev 173
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/* ************************************************************************** * * Component = * * Synopsis = rdbg/powerpc/excep_f.c * * $Id: excep_f.c,v 1.2 2001-09-27 12:02:02 chris Exp $ * ************************************************************************** */ #include <rtems.h> #include <rtems/error.h> #include <assert.h> #include <errno.h> #include <rdbg/rdbg.h> #include <rdbg/servrpc.h> int ExcepToSig (Exception_context *ctx) { int excep = getExcNum (ctx); switch (excep) { case ASM_FLOAT_VECTOR : return SIGFPE; case ASM_TRACE_VECTOR : case ASM_PROG_VECTOR : case ASM_SYS_VECTOR : return SIGTRAP; case ASM_ISI_VECTOR : return SIGSEGV; case ASM_RESET_VECTOR : case ASM_MACH_VECTOR : case ASM_EXT_VECTOR : case ASM_ALIGN_VECTOR : return SIGILL; default: break; } return SIGKILL; } /*----- Breakpoint Exception management -----*/ /* * Handler for Breakpoint Exceptions : * software breakpoints. */ void BreakPointExcHdl(CPU_Exception_frame *ctx) { rtems_status_code status; rtems_id continueSemId; if ( (justSaveContext) && (ctx->_EXC_number == ASM_SYS_VECTOR) ) { PushSavedExceptCtx (_Thread_Executing->Object.id, ctx); justSaveContext = 0; } else { if (ctx->_EXC_number != ASM_TRACE_VECTOR){ NbSerializedCtx++; rtems_semaphore_obtain(serializeSemId, RTEMS_WAIT, RTEMS_NO_TIMEOUT); NbSerializedCtx--; } currentTargetThread = _Thread_Executing->Object.id; #ifdef DDEBUG printk("----------------------------------------------------------\n"); printk("Exception %d caught at PC %x by thread %d\n", ctx->_EXC_number, ctx->EXC_SRR0, _Thread_Executing->Object.id); printk("----------------------------------------------------------\n"); printk("Processor execution context at time of the fault was :\n"); printk("----------------------------------------------------------\n"); printk("\t R0 = %x\n", ctx->GPR0); printk("\t R1 = %x\n", ctx->GPR1); printk("\t R2 = %x\n", ctx->GPR2); printk("\t R3 = %x\n", ctx->GPR3); printk("\t R4 = %x\n", ctx->GPR4); printk("\t R5 = %x\n", ctx->GPR5); printk("\t R6 = %x\n", ctx->GPR6); printk("\t R7 = %x\n", ctx->GPR7); printk("\t R8 = %x\n", ctx->GPR8); printk("\t R9 = %x\n", ctx->GPR9); printk("\t R10 = %x\n", ctx->GPR10); printk("\t R11 = %x\n", ctx->GPR11); printk("\t R12 = %x\n", ctx->GPR12); printk("\t R13 = %x\n", ctx->GPR13); printk("\t R14 = %x\n", ctx->GPR14); printk("\t R15 = %x\n", ctx->GPR15); printk("\t R16 = %x\n", ctx->GPR16); printk("\t R17 = %x\n", ctx->GPR17); printk("\t R18 = %x\n", ctx->GPR18); printk("\t R19 = %x\n", ctx->GPR19); printk("\t R20 = %x\n", ctx->GPR20); printk("\t R21 = %x\n", ctx->GPR21); printk("\t R22 = %x\n", ctx->GPR22); printk("\t R23 = %x\n", ctx->GPR23); printk("\t R24 = %x\n", ctx->GPR24); printk("\t R25 = %x\n", ctx->GPR25); printk("\t R26 = %x\n", ctx->GPR26); printk("\t R27 = %x\n", ctx->GPR27); printk("\t R28 = %x\n", ctx->GPR28); printk("\t R29 = %x\n", ctx->GPR29); printk("\t R30 = %x\n", ctx->GPR30); printk("\t R31 = %x\n", ctx->GPR31); printk("\t CR = %x\n", ctx->EXC_CR); printk("\t CTR = %x\n", ctx->EXC_CTR); printk("\t XER = %x\n", ctx->EXC_XER); printk("\t LR = %x\n", ctx->EXC_LR); printk("\t MSR = %x\n", ctx->EXC_MSR); #endif status = rtems_semaphore_create (rtems_build_name('D', 'B', 'G', 'c'), 0, RTEMS_FIFO | RTEMS_COUNTING_SEMAPHORE | RTEMS_NO_INHERIT_PRIORITY | RTEMS_NO_PRIORITY_CEILING | RTEMS_LOCAL, 0, &continueSemId); if (status != RTEMS_SUCCESSFUL) rtems_panic ("Can't create continue semaphore: `%s'\n",rtems_status_text(status)); PushExceptCtx (_Thread_Executing->Object.id, continueSemId, ctx); switch (ctx->_EXC_number){ case ASM_TRACE_VECTOR : DPRINTF((" TRACE EXCEPTION !!!\n")); ctx->EXC_SRR1 &= ~MSR_SE; ExitForSingleStep-- ; rtems_semaphore_release( wakeupEventSemId ); break; case ASM_PROG_VECTOR : DPRINTF((" BREAKPOINT EXCEPTION !!!\n")); rtems_semaphore_release( wakeupEventSemId ); break; case ASM_SYS_VECTOR : DPRINTF((" ENTER RDBG !!!\n")); rtems_semaphore_release( wakeupEventSemId ); break; default: DPRINTF((" OTHER EXCEPTION !!!\n")); rtems_semaphore_release( wakeupEventSemId ); break; } rtems_semaphore_obtain(continueSemId, RTEMS_WAIT, RTEMS_NO_TIMEOUT); PopExceptCtx (_Thread_Executing->Object.id); rtems_semaphore_delete(continueSemId); } }