-/* Target-dependent code for the MIPS architecture, for GDB, the GNU Debugger.
- Copyright 1988, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
+/* Native support for the SGI Iris running IRIX version 4, for GDB.
+ Copyright 1988, 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
+ Implemented for Irix 4.x by Garrett A. Wollman.
This file is part of GDB.
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
-
-/*
- * Implemented for Irix 4.x by Garrett A. Wollman
- */
+#include "inferior.h"
#include <sys/time.h>
#include <sys/procfs.h>
+#include <setjmp.h> /* For JB_XXX. */
+
+/* Size of elements in jmpbuf */
+
+#define JB_ELEMENT_SIZE 4
typedef unsigned int greg_t; /* why isn't this defined? */
{
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++)
{
int regi;
char *from, *to;
- extern char registers[];
for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++)
{
if ((regno == -1) || (regno == regi))
{
from = (char *) ®isters[REGISTER_BYTE (regi)];
- to = (char *) &(fpregsetp->fp_r.fp_regs[regi]);
+ to = (char *) &(fpregsetp->fp_r.fp_regs[regi - FP0_REGNUM]);
bcopy(from, to, REGISTER_RAW_SIZE (regi));
}
}
if ((regno == -1) || (regno == FCRCS_REGNUM))
fpregsetp->fp_csr = *(unsigned *) ®isters[REGISTER_BYTE(FCRCS_REGNUM)];
}
+
+
+/* Figure out where the longjmp will land.
+ We expect the first arg to be a pointer to the jmp_buf structure from which
+ we extract the pc (JB_PC) that we will land at. The pc is copied into PC.
+ This routine returns true on success. */
+
+int
+get_longjmp_target(pc)
+ CORE_ADDR *pc;
+{
+ CORE_ADDR jb_addr;
+
+ jb_addr = read_register(A0_REGNUM);
+
+ if (target_read_memory(jb_addr + JB_PC * JB_ELEMENT_SIZE, pc,
+ sizeof(CORE_ADDR)))
+ return 0;
+
+ SWAP_TARGET_AND_HOST(pc, sizeof(CORE_ADDR));
+
+ return 1;
+}
+
+void
+fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
+ char *core_reg_sect;
+ unsigned core_reg_size;
+ int which; /* Unused */
+ unsigned int reg_addr; /* Unused */
+{
+ if (core_reg_size != REGISTER_BYTES)
+ {
+ warning ("wrong size gregset struct in core file");
+ return;
+ }
+
+ memcpy ((char *)registers, core_reg_sect, core_reg_size);
+}