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Fix -t option to work with memory mapping; Print PC in some error messages

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This commit is contained in:
Michael Meissner 1996-10-30 22:43:02 +00:00
parent 193e41979c
commit b30cdd3565
4 changed files with 57 additions and 26 deletions
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19
sim/d10v/ChangeLog
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@ -1,3 +1,22 @@
Wed Oct 30 17:35:14 1996 Michael Meissner <meissner@tiktok.cygnus.com>
* interp.c (bfd.h) Don't include it here any more.
(text{,_start,_end}): Move here from simops.c and make extern.
(decode_pc): New function to return the PC as an address that the
debugger can use.
(dmem_addr): Print decoded PC in error message.
(pc_addr): Ditto.
* simops.c (bfd.h) Don't include it here any more.
(text{,_start,_end}): Move to simops.c.
(trace_input_func): Move decoding of PC, and looking up .text
start to decode_pc.
* d10v_sim.h (bfd.h): Include it here.
(text{,_start,_end}): Add external declarations.
(exec_bfd): Ditto.
(decode_pc): Ditto.
Tue Oct 29 12:13:52 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
* interp.c (sim_size): Now allocates unified memory for imap segments

6
sim/d10v/d10v_sim.h
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@ -4,6 +4,7 @@
#include "ansidecl.h"
#include "callback.h"
#include "opcode/d10v.h"
#include "bfd.h"
#define DEBUG_TRACE 0x00000001
#define DEBUG_VALUES 0x00000002
@ -128,6 +129,10 @@ struct _state
extern host_callback *d10v_callback;
extern uint16 OP[4];
extern struct simops Simops[];
extern asection *text;
extern bfd_vma text_start;
extern bfd_vma text_end;
extern bfd *exec_bfd;
#define PC (State.cregs[2])
#define PSW (State.cregs[0])
@ -174,6 +179,7 @@ extern struct simops Simops[];
#define INC_ADDR(x,i) x = ((State.MD && x == MOD_E) ? MOD_S : (x)+(i))
extern uint8 *dmem_addr PARAMS ((uint32));
extern bfd_vma decode_pc PARAMS ((void));
#define RB(x) (*(dmem_addr(x)))
#define SB(addr,data) ( RB(addr) = (data & 0xff))

35
sim/d10v/interp.c
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@ -1,6 +1,5 @@
#include <signal.h>
#include "sysdep.h"
#include "bfd.h"
#include "remote-sim.h"
#include "d10v_sim.h"
@ -17,6 +16,11 @@ unsigned long ins_type_counters[ (int)INS_MAX ];
uint16 OP[4];
static int init_text_p = 0;
asection *text;
bfd_vma text_start;
bfd_vma text_end;
static long hash PARAMS ((long insn, int format));
static struct hash_entry *lookup_hash PARAMS ((uint32 ins, int size));
static void get_operands PARAMS ((struct simops *s, uint32 ins));
@ -111,6 +115,26 @@ get_operands (struct simops *s, uint32 ins)
}
}
bfd_vma
decode_pc ()
{
asection *s;
if (!init_text_p)
{
init_text_p = 1;
for (s = exec_bfd->sections; s; s = s->next)
if (strcmp (bfd_get_section_name (exec_bfd, s), ".text") == 0)
{
text = s;
text_start = bfd_get_section_vma (exec_bfd, s);
text_end = text_start + bfd_section_size (exec_bfd, s);
break;
}
}
return (PC << 2) + text_start;
}
static void
do_long (ins)
uint32 ins;
@ -507,7 +531,8 @@ dmem_addr( addr )
if (addr > 0xbfff)
{
if ( (addr & 0xfff0) != 0xff00)
(*d10v_callback->printf_filtered) (d10v_callback, "Data address %x is in I/O space.\n",addr);
(*d10v_callback->printf_filtered) (d10v_callback, "Data address 0x%lx is in I/O space, pc = 0x%lx.\n",
(long)addr, (long)decode_pc ());
return State.dmem + addr;
}
@ -524,7 +549,8 @@ dmem_addr( addr )
seg = (DMAP & 0x3ff) >> 2;
if (State.umem[seg] == NULL)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: unified memory region %d unmapped\n", seg);
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: unified memory region %d unmapped, pc = 0x%lx\n",
seg, (long)decode_pc ());
exit(1);
}
return State.umem[seg] + (DMAP & 3) * 0x4000;
@ -550,7 +576,8 @@ pc_addr()
if (State.umem[imap & 0xff] == NULL)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: unified memory region %d unmapped\n", imap & 0xff);
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: unified memory region %d unmapped, pc = 0x%lx\n",
imap & 0xff, (long)PC);
State.exception = SIGILL;
return 0;
}

23
sim/d10v/simops.c
View File

@ -7,7 +7,6 @@
#include "d10v_sim.h"
#include "simops.h"
#include "sys/syscall.h"
#include "bfd.h"
extern char *strrchr ();
@ -52,12 +51,6 @@ static void trace_output_func PARAMS ((enum op_types result));
#define trace_output(result) do { if (d10v_debug) trace_output_func (result); } while (0)
static int init_text_p = 0;
static asection *text;
static bfd_vma text_start;
static bfd_vma text_end;
extern bfd *exec_bfd;
#ifndef SIZE_INSTRUCTION
#define SIZE_INSTRUCTION 8
#endif
@ -96,7 +89,6 @@ trace_input_func (name, in1, in2, in3)
char *p;
long tmp;
char *type;
asection *s;
const char *filename;
const char *functionname;
unsigned int linenumber;
@ -129,21 +121,8 @@ trace_input_func (name, in1, in2, in3)
else
{
if (!init_text_p)
{
init_text_p = 1;
for (s = exec_bfd->sections; s; s = s->next)
if (strcmp (bfd_get_section_name (exec_bfd, s), ".text") == 0)
{
text = s;
text_start = bfd_get_section_vma (exec_bfd, s);
text_end = text_start + bfd_section_size (exec_bfd, s);
break;
}
}
buf[0] = '\0';
byte_pc = (bfd_vma)PC << 2;
byte_pc = decode_pc ();
if (text && byte_pc >= text_start && byte_pc < text_end)
{
filename = (const char *)0;