diff options
Diffstat (limited to '')
| -rw-r--r-- | c/src/librdbg/src/powerpc/excep_f.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/c/src/librdbg/src/powerpc/excep_f.c b/c/src/librdbg/src/powerpc/excep_f.c deleted file mode 100644 index 70aef39880..0000000000 --- a/c/src/librdbg/src/powerpc/excep_f.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - ************************************************************************** - * - * Component = - * - * Synopsis = rdbg/powerpc/excep_f.c - * - * $Id$ - * - ************************************************************************** - */ - -#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; - - /* At lest the MPC5xx series does not have this vector */ -#if defined(ASM_ISI_VECTOR) - case ASM_ISI_VECTOR: - return SIGSEGV; -#endif - - 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; - - /* - * we must re-enable the floating point engine - * if the interrupted thread is FP. Otherwise, - * the semaphore primitives may crash when they - * try to save FP context while switching this - * thread... NB : deferred fp context switching - * would 1) avoid to have to save FP, make this code - * obsolete. - */ - if (ctx->EXC_SRR1 & MSR_FP) { - register unsigned long msr; - __asm__ __volatile__ ("mfmsr %0":"=r" (msr)); - __asm__ __volatile__ ("mtmsr %0"::"r" (msr | MSR_FP)); - } - - 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_SRR1); -#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); - } -} |