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Better error messages when a program stops due to signal; support d10v getpid/kill

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This commit is contained in:
Michael Meissner 1996-10-15 15:44:10 +00:00
parent 684d50a53e
commit 57bc1a721a
5 changed files with 254 additions and 42 deletions
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119
sim/d10v/interp.c
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@ -180,7 +180,7 @@ do_2_short (ins1, ins2, leftright)
(h->ops->func)();
/* If the PC has changed (ie, a jump), don't do the second instruction */
if (orig_pc == PC)
if (orig_pc == PC && !State.exception)
{
h = lookup_hash (ins2, 0);
get_operands (h->ops, ins2);
@ -234,10 +234,13 @@ do_parallel (ins1, ins2)
State.ins_type = INS_LEFT_PARALLEL;
ins_type_counters[ (int)State.ins_type ]++;
(h1->ops->func)();
get_operands (h2->ops, ins2);
State.ins_type = INS_RIGHT_PARALLEL;
ins_type_counters[ (int)State.ins_type ]++;
(h2->ops->func)();
if (!State.exception)
{
get_operands (h2->ops, ins2);
State.ins_type = INS_RIGHT_PARALLEL;
ins_type_counters[ (int)State.ins_type ]++;
(h2->ops->func)();
}
}
}
@ -261,6 +264,9 @@ sim_size (power)
exit(1);
}
State.mem_min = 1<<IMEM_SIZE;
State.mem_max = 0;
#ifdef DEBUG
if ((d10v_debug & DEBUG_MEMSIZE) != 0)
{
@ -283,14 +289,21 @@ sim_write (addr, buffer, size)
unsigned char *buffer;
int size;
{
int i;
init_system ();
/* (*d10v_callback->printf_filtered) (d10v_callback, "sim_write %d bytes to 0x%x\n",size,addr); */
for (i = 0; i < size; i++)
{
State.imem[i+addr] = buffer[i];
}
#ifdef DEBUG
if ((d10v_debug & DEBUG_INSTRUCTION) != 0)
(*d10v_callback->printf_filtered) (d10v_callback, "sim_write %d bytes to 0x%x, min = 0x%x, max = 0x%x\n",
size, addr, State.mem_min, State.mem_max);
#endif
if (State.mem_min > addr)
State.mem_min = addr;
if (State.mem_max < addr+size-1)
State.mem_max = addr+size-1;
memcpy (State.imem+addr, buffer, size);
return size;
}
@ -374,39 +387,50 @@ sim_resume (step, siggnal)
do
{
inst = RLW (PC << 2);
oldpc = PC;
switch (inst & 0xC0000000)
uint32 byte_pc = ((uint32)PC) << 2;
if ((byte_pc < State.mem_min) || (byte_pc > State.mem_max))
{
case 0xC0000000:
/* long instruction */
do_long (inst & 0x3FFFFFFF);
break;
case 0x80000000:
/* R -> L */
do_2_short ( inst & 0x7FFF, (inst & 0x3FFF8000) >> 15, 0);
break;
case 0x40000000:
/* L -> R */
do_2_short ((inst & 0x3FFF8000) >> 15, inst & 0x7FFF, 1);
break;
case 0:
do_parallel ((inst & 0x3FFF8000) >> 15, inst & 0x7FFF);
break;
(*d10v_callback->printf_filtered) (d10v_callback,
"PC (0x%lx) out of range, oldpc = 0x%lx, min = 0x%lx, max = 0x%lx\n",
(long)byte_pc, (long)oldpc, (long)State.mem_min, (long)State.mem_max);
State.exception = SIGILL;
}
if (State.RP && PC == RPT_E)
else
{
RPT_C -= 1;
if (RPT_C == 0)
State.RP = 0;
else
PC = RPT_S;
}
inst = RLW (byte_pc);
oldpc = PC;
switch (inst & 0xC0000000)
{
case 0xC0000000:
/* long instruction */
do_long (inst & 0x3FFFFFFF);
break;
case 0x80000000:
/* R -> L */
do_2_short ( inst & 0x7FFF, (inst & 0x3FFF8000) >> 15, 0);
break;
case 0x40000000:
/* L -> R */
do_2_short ((inst & 0x3FFF8000) >> 15, inst & 0x7FFF, 1);
break;
case 0:
do_parallel ((inst & 0x3FFF8000) >> 15, inst & 0x7FFF);
break;
}
/* FIXME */
if (PC == oldpc)
PC++;
if (State.RP && PC == RPT_E)
{
RPT_C -= 1;
if (RPT_C == 0)
State.RP = 0;
else
PC = RPT_S;
}
/* FIXME */
if (PC == oldpc)
PC++;
}
}
while (!State.exception);
}
@ -463,10 +487,25 @@ sim_create_inferior (start_address, argv, env)
char **argv;
char **env;
{
uint8 *imem, *dmem;
uint32 mem_min, mem_max;
#ifdef DEBUG
if (d10v_debug)
(*d10v_callback->printf_filtered) (d10v_callback, "sim_create_inferior: PC=0x%x\n", start_address);
#endif
/* save memory pointers */
imem = State.imem;
dmem = State.dmem;
mem_min = State.mem_min;
mem_max = State.mem_max;
/* reset all state information */
memset (&State, 0, sizeof(State));
/* restore memory pointers */
State.imem = imem;
State.dmem = dmem;
State.mem_min = mem_min;
State.mem_max = mem_max;
/* set PC */
PC = start_address >> 2;
}