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* config.sub configure.in config/.Sanitize config/mh-irix4

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gdb/.Sanitize gdb/configure.in gdb/mips-tdep.c gdb/mipsread.c
gdb/procfs.c gdb/signame.h gdb/tm-irix3.h gdb/tm-mips.h
gdb/xm-irix4.h gdb/config/.Sanitize gdb/config/mt-irix3
gdb/config/mh-irix4 texinfo/configure.in:  Port to SGI Irix-4.x.
This commit is contained in:
Stu Grossman
1992-03-05 20:20:27 +00:00
parent d7eddc5177
commit 407a8389b4
15 changed files with 238 additions and 8 deletions
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113
gdb/mips-tdep.c
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@@ -36,6 +36,12 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <signal.h>
#include <sys/ioctl.h>
#ifdef sgi
/* Must do it this way only for SGIs, as other mips platforms get their
JB_ symbols from machine/pcb.h (included via sys/user.h). */
#include <setjmp.h>
#endif
#include "gdbcore.h"
#ifndef MIPSMAGIC
@@ -641,7 +647,114 @@ isa_NAN(p, len)
}
else return 1;
}
/*
* Implemented for Irix 4.x by Garrett A. Wollman
*/
#ifdef USE_PROC_FS /* Target-dependent /proc support */
#include <sys/time.h>
#include <sys/procfs.h>
typedef unsigned int greg_t; /* why isn't this defined? */
/*
* See the comment in m68k-tdep.c regarding the utility of these functions.
*/
void
supply_gregset (gregsetp)
gregset_t *gregsetp;
{
register int regno;
register greg_t *regp = (greg_t *)(gregsetp->gp_regs);
/* FIXME: somewhere, there should be a #define for the meaning
of this magic number 32; we should use that. */
for(regno = 0; regno < 32; regno++)
supply_register (regno, (char *)(regp + regno));
supply_register (PC_REGNUM, (char *)&(gregsetp->gp_pc));
supply_register (HI_REGNUM, (char *)&(gregsetp->gp_mdhi));
supply_register (LO_REGNUM, (char *)&(gregsetp->gp_mdlo));
supply_register (PS_REGNUM, (char *)&(gregsetp->gp_cause));
}
void
fill_gregset (gregsetp, regno)
gregset_t *gregsetp;
int regno;
{
int regi;
register greg_t *regp = (greg_t *)(gregsetp->gp_regs);
extern char registers[];
/* same FIXME as above wrt 32*/
for (regi = 0; regi < 32; regi++)
if ((regno == -1) || (regno == regi))
*(regp + regno) = *(greg_t *) &registers[REGISTER_BYTE (regi)];
if ((regno == -1) || (regno == PC_REGNUM))
gregsetp->gp_pc = *(greg_t *) &registers[REGISTER_BYTE (PC_REGNUM)];
if ((regno == -1) || (regno == PS_REGNUM))
gregsetp->gp_cause = *(greg_t *) &registers[REGISTER_BYTE (PS_REGNUM)];
if ((regno == -1) || (regno == HI_REGNUM))
gregsetp->gp_mdhi = *(greg_t *) &registers[REGISTER_BYTE (HI_REGNUM)];
if ((regno == -1) || (regno == LO_REGNUM))
gregsetp->gp_mdlo = *(greg_t *) &registers[REGISTER_BYTE (LO_REGNUM)];
}
/*
* Now we do the same thing for floating-point registers.
* We don't bother to condition on FP0_REGNUM since any
* reasonable MIPS configuration has an R3010 in it.
*
* Again, see the comments in m68k-tdep.c.
*/
void
supply_fpregset (fpregsetp)
fpregset_t *fpregsetp;
{
register int regno;
for (regno = 0; regno < 32; regno++)
supply_register (FP0_REGNUM + regno,
(char *)&fpregsetp->fp_r.fp_regs[regno]);
supply_register (FCRCS_REGNUM, (char *)&fpregsetp->fp_csr);
/* FIXME: how can we supply FCRIR_REGNUM? SGI doesn't tell us. */
}
void
fill_fpregset (fpregsetp, regno)
fpregset_t *fpregsetp;
int regno;
{
int regi;
char *from, *to;
extern char registers[];
for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++)
{
if ((regno == -1) || (regno == regi))
{
from = (char *) &registers[REGISTER_BYTE (regi)];
to = (char *) &(fpregsetp->fp_r.fp_regs[regi]);
bcopy(from, to, REGISTER_RAW_SIZE (regno));
}
}
if ((regno == -1) || (regno == FCRCS_REGNUM))
fpregsetp->fp_csr = *(unsigned *) &registers[REGISTER_BYTE(FCRCS_REGNUM)];
}
#endif /* USE_PROC_FS */
/* To skip prologues, I use this predicate. Returns either PC
itself if the code at PC does not look like a function prologue,
PC+4 if it does (our caller does not need anything more fancy). */