#include "getopt.h"
#include "libiberty.h"
#include "bfd.h"
-#include "callback.h" /* GDB simulator callback interface */
-#include "remote-sim.h" /* GDB simulator interface */
+#include "gdb/callback.h" /* GDB simulator callback interface */
+#include "gdb/remote-sim.h" /* GDB simulator interface */
#include "sysdep.h"
sim_open (kind, cb, abfd, argv)
SIM_OPEN_KIND kind;
host_callback *cb;
- struct _bfd *abfd;
+ struct bfd *abfd;
char **argv;
{
SIM_DESC sd = sim_state_alloc (kind, cb);
{
if (rn < 32)
cpu->register_widths[rn] = WITH_TARGET_WORD_BITSIZE;
- else if ((rn >= FGRIDX) && (rn < (FGRIDX + NR_FGR)))
+ else if ((rn >= FGR_BASE) && (rn < (FGR_BASE + NR_FGR)))
cpu->register_widths[rn] = WITH_TARGET_FLOATING_POINT_BITSIZE;
else if ((rn >= 33) && (rn <= 37))
cpu->register_widths[rn] = WITH_TARGET_WORD_BITSIZE;
sim_write (sd, 0x80000000, (char *) halt, sizeof (halt));
sim_write (sd, 0x80000180, (char *) halt, sizeof (halt));
sim_write (sd, 0x80000200, (char *) halt, sizeof (halt));
-#if 0
- /* This is wrong. We're not supposed to write code to the
- vector tables, but rather pointers to code. */
/* XXX: Write here unconditionally? */
sim_write (sd, 0xBFC00200, (char *) halt, sizeof (halt));
sim_write (sd, 0xBFC00380, (char *) halt, sizeof (halt));
sim_write (sd, 0xBFC00400, (char *) halt, sizeof (halt));
-#endif
}
}
- if (rn >= FGRIDX && rn < FGRIDX + NR_FGR)
+ if (rn >= FGR_BASE && rn < FGR_BASE + NR_FGR)
{
- cpu->fpr_state[rn - FGRIDX] = fmt_uninterpreted;
+ cpu->fpr_state[rn - FGR_BASE] = fmt_uninterpreted;
if (cpu->register_widths[rn] == 32)
{
if (length == 8)
{
- cpu->fgr[rn - FGRIDX] =
+ cpu->fgr[rn - FGR_BASE] =
(unsigned32) T2H_8 (*(unsigned64*)memory);
return 8;
}
else
{
- cpu->fgr[rn - FGRIDX] = T2H_4 (*(unsigned32*)memory);
+ cpu->fgr[rn - FGR_BASE] = T2H_4 (*(unsigned32*)memory);
return 4;
}
}
else
{
- cpu->fgr[rn - FGRIDX] = T2H_8 (*(unsigned64*)memory);
+ cpu->fgr[rn - FGR_BASE] = T2H_8 (*(unsigned64*)memory);
return 8;
}
}
/* Any floating point register */
- if (rn >= FGRIDX && rn < FGRIDX + NR_FGR)
+ if (rn >= FGR_BASE && rn < FGR_BASE + NR_FGR)
{
if (cpu->register_widths[rn] == 32)
{
if (length == 8)
{
*(unsigned64*)memory =
- H2T_8 ((unsigned32) (cpu->fgr[rn - FGRIDX]));
+ H2T_8 ((unsigned32) (cpu->fgr[rn - FGR_BASE]));
return 8;
}
else
{
- *(unsigned32*)memory = H2T_4 (cpu->fgr[rn - FGRIDX]);
+ *(unsigned32*)memory = H2T_4 (cpu->fgr[rn - FGR_BASE]);
return 4;
}
}
else
{
- *(unsigned64*)memory = H2T_8 (cpu->fgr[rn - FGRIDX]);
+ *(unsigned64*)memory = H2T_8 (cpu->fgr[rn - FGR_BASE]);
return 8;
}
}
SIM_RC
sim_create_inferior (sd, abfd, argv,env)
SIM_DESC sd;
- struct _bfd *abfd;
+ struct bfd *abfd;
char **argv;
char **env;
{
}
}
else
- address_present = 0;
+ {
+ address_present = 0;
+ address = -1; /* Dummy value. */
+ }
}
if (! strncmp (arg, "idt", 3))
break;
}
- case 28 : /* PMON flush_cache */
+ case 28: /* PMON flush_cache */
break;
case 55: /* void get_mem_info(unsigned int *ptr) */
sim_write (sd, A0 + 0, (char *)&value, 4);
sim_write (sd, A0 + 4, (char *)&zero, 4);
sim_write (sd, A0 + 8, (char *)&zero, 4);
- /* sim_io_eprintf (sd, "sim: get_mem_info() depreciated\n"); */
+ /* sim_io_eprintf (sd, "sim: get_mem_info() deprecated\n"); */
break;
}
- case 158 : /* PMON printf */
+ case 158: /* PMON printf */
/* in: A0 = pointer to format string */
/* A1 = optional argument 1 */
/* A2 = optional argument 2 */
switch (exception) {
- case DebugBreakPoint :
+ case DebugBreakPoint:
if (! (Debug & Debug_DM))
{
if (INDELAYSLOT())
}
break;
- case ReservedInstruction :
+ case ReservedInstruction:
{
va_list ap;
unsigned int instruction;
sim_engine_halt (SD, CPU, NULL, PC,
sim_stopped, SIM_SIGTRAP);
- default : /* Unknown internal exception */
+ default: /* Unknown internal exception */
PC = EPC;
sim_engine_halt (SD, CPU, NULL, PC,
sim_stopped, SIM_SIGABRT);
-#if defined(WARN_RESULT)
-/* Description from page A-26 of the "MIPS IV Instruction Set" manual (revision 3.1) */
-/* This function indicates that the result of the operation is
- undefined. However, this should not affect the instruction
- stream. All that is meant to happen is that the destination
- register is set to an undefined result. To keep the simulator
- simple, we just don't bother updating the destination register, so
- the overall result will be undefined. If desired we can stop the
- simulator by raising a pseudo-exception. */
-#define UndefinedResult() undefined_result (sd,cia)
-static void
-undefined_result(sd,cia)
- SIM_DESC sd;
- address_word cia;
+/* This function implements what the MIPS32 and MIPS64 ISAs define as
+ "UNPREDICTABLE" behaviour.
+
+ About UNPREDICTABLE behaviour they say: "UNPREDICTABLE results
+ may vary from processor implementation to processor implementation,
+ instruction to instruction, or as a function of time on the same
+ implementation or instruction. Software can never depend on results
+ that are UNPREDICTABLE. ..." (MIPS64 Architecture for Programmers
+ Volume II, The MIPS64 Instruction Set. MIPS Document MD00087 revision
+ 0.95, page 2.)
+
+ For UNPREDICTABLE behaviour, we print a message, if possible print
+ the offending instructions mips.igen instruction name (provided by
+ the caller), and stop the simulator.
+
+ XXX FIXME: eventually, stopping the simulator should be made conditional
+ on a command-line option. */
+void
+unpredictable_action(sim_cpu *cpu, address_word cia)
{
- sim_io_eprintf(sd,"UndefinedResult: PC = 0x%s\n",pr_addr(cia));
-#if 0 /* Disabled for the moment, since it actually happens a lot at the moment. */
- state |= simSTOP;
-#endif
- return;
+ SIM_DESC sd = CPU_STATE(cpu);
+
+ sim_io_eprintf(sd, "UNPREDICTABLE: PC = 0x%s\n", pr_addr (cia));
+ sim_engine_halt (SD, CPU, NULL, cia, sim_stopped, SIM_SIGABRT);
}
-#endif /* WARN_RESULT */
/*-- co-processor support routines ------------------------------------------*/
case 8:
/* 8 = BadVAddr R4000 VR4100 VR4300 */
if (code == 0x00)
- GPR[rt] = COP0_BADVADDR;
+ GPR[rt] = (signed_word) (signed_address) COP0_BADVADDR;
else
COP0_BADVADDR = GPR[rt];
break;
projects / deliverable / binutils-gdb.git / blobdiff