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- Use PALcode ops names defined in <machine/pal.h>. 

- Fix a few bugs in the software single-stepping support code, where
  VMS PALcode ops were being checked, rather than OSF/1 PALcode ops,
  causing erroneous results in the "exception return" and "unconditional
  branch" predicates.
- Add the BWX instructions ("ldbu", "ldwu", "stb", "stw") to the
  "load" and "store" predicates.
This commit is contained in:
thorpej 1997-09-16 19:07:19 +00:00
parent a14bab3438
commit d1b4b49231
1 changed files with 16 additions and 7 deletions
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23
sys/arch/alpha/alpha/db_interface.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: db_interface.c,v 1.1 1997/09/06 02:00:49 thorpej Exp $ */
/* $NetBSD: db_interface.c,v 1.2 1997/09/16 19:07:19 thorpej Exp $ */
/*
* Mach Operating System
@ -49,7 +49,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: db_interface.c,v 1.1 1997/09/06 02:00:49 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: db_interface.c,v 1.2 1997/09/16 19:07:19 thorpej Exp $");
#include <sys/param.h>
#include <sys/proc.h>
@ -61,6 +61,7 @@ __KERNEL_RCSID(0, "$NetBSD: db_interface.c,v 1.1 1997/09/06 02:00:49 thorpej Exp
#include <dev/cons.h>
#include <machine/db_machdep.h>
#include <machine/pal.h>
#include <machine/prom.h>
#include <alpha/alpha/db_instruction.h>
@ -385,7 +386,7 @@ db_inst_trap_return(ins)
insn.bits = ins;
return ((insn.pal_format.opcode == op_pal) &&
(insn.pal_format.function == op_rei));
(insn.pal_format.function == PAL_OSF1_rti));
}
boolean_t
@ -431,8 +432,12 @@ db_inst_unconditional_flow_transfer(ins)
return (TRUE);
case op_pal:
return ((insn.pal_format.function == op_rei) ||
(insn.pal_format.function == op_chmk));
switch (insn.pal_format.function) {
case PAL_OSF1_retsys:
case PAL_OSF1_rti:
case PAL_OSF1_callsys:
return (TRUE);
}
}
return (FALSE);
@ -460,7 +465,9 @@ db_inst_load(ins)
insn.bits = ins;
/* Loads. */
if (insn.mem_format.opcode == op_ldq_u)
if (insn.mem_format.opcode == op_ldbu ||
insn.mem_format.opcode == op_ldq_u ||
insn.mem_format.opcode == op_ldwu)
return (TRUE);
if ((insn.mem_format.opcode >= op_ldf) &&
(insn.mem_format.opcode <= op_ldt))
@ -489,7 +496,9 @@ db_inst_store(ins)
insn.bits = ins;
/* Stores. */
if (insn.mem_format.opcode == op_stq_u)
if (insn.mem_format.opcode == op_stw ||
insn.mem_format.opcode == op_stb ||
insn.mem_format.opcode == op_stq_u)
return (TRUE);
if ((insn.mem_format.opcode >= op_stf) &&
(insn.mem_format.opcode <= op_stt))