/* Low level Alpha interface, for GDB when running native.
- Copyright 1993, 1995, 1996, 1998, 1999, 2000, 2001
+ Copyright 1993, 1995, 1996, 1998, 1999, 2000, 2001, 2003
Free Software Foundation, Inc.
This file is part of GDB.
Boston, MA 02111-1307, USA. */
#include "defs.h"
+#include "gdb_string.h"
#include "inferior.h"
#include "gdbcore.h"
#include "target.h"
fetch_osf_core_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR reg_addr)
{
- register int regno;
- register int addr;
+ int regno;
+ int addr;
int bad_reg = -1;
/* Table to map a gdb regnum to an index in the core register
OSF/1.2 core files. OSF5 uses different names for the register
enum list, need to handle two cases. The actual values are the
same. */
- static int core_reg_mapping[ALPHA_NUM_REGS] =
+ static int const core_reg_mapping[ALPHA_NUM_REGS] =
{
#ifdef NCF_REGS
#define EFL NCF_REGS
EF_PC, -1
#endif
};
- static char zerobuf[ALPHA_MAX_REGISTER_RAW_SIZE] =
- {0};
- for (regno = 0; regno < NUM_REGS; regno++)
+ for (regno = 0; regno < ALPHA_NUM_REGS; regno++)
{
if (CANNOT_FETCH_REGISTER (regno))
{
- supply_register (regno, zerobuf);
+ regcache_raw_supply (current_regcache, regno, NULL);
continue;
}
addr = 8 * core_reg_mapping[regno];
if (addr < 0 || addr >= core_reg_size)
{
+ /* ??? UNIQUE is a new addition. Don't generate an error. */
+ if (regno == ALPHA_UNIQUE_REGNUM)
+ {
+ regcache_raw_supply (current_regcache, regno, NULL);
+ continue;
+ }
if (bad_reg < 0)
bad_reg = regno;
}
else
{
- supply_register (regno, core_reg_sect + addr);
+ regcache_raw_supply (current_regcache, regno, core_reg_sect + addr);
}
}
if (bad_reg >= 0)
return;
}
- if (which == 2)
+ switch (which)
{
- /* The FPU Registers. */
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], core_reg_sect, 31 * 8);
- memset (®isters[REGISTER_BYTE (FP0_REGNUM + 31)], 0, 8);
- memset (®ister_valid[FP0_REGNUM], 1, 32);
- }
- else
- {
- /* The General Registers. */
- memcpy (®isters[REGISTER_BYTE (ALPHA_V0_REGNUM)], core_reg_sect,
- 31 * 8);
- memcpy (®isters[REGISTER_BYTE (PC_REGNUM)], core_reg_sect + 31 * 8, 8);
- memset (®isters[REGISTER_BYTE (ALPHA_ZERO_REGNUM)], 0, 8);
- memset (®ister_valid[ALPHA_V0_REGNUM], 1, 32);
- register_valid[PC_REGNUM] = 1;
+ case 0: /* integer registers */
+ /* PC is in slot 32; UNIQUE is in slot 33, if present. */
+ alpha_supply_int_regs (-1, core_reg_sect, core_reg_sect + 31*8,
+ (core_reg_size >= 33 * 8
+ ? core_reg_sect + 32*8 : NULL));
+ break;
+
+ case 2: /* floating-point registers */
+ /* FPCR is in slot 32. */
+ alpha_supply_fp_regs (-1, core_reg_sect, core_reg_sect + 31*8);
+ break;
+
+ default:
+ break;
}
}
/* Map gdb internal register number to a ptrace ``address''.
- These ``addresses'' are defined in <sys/ptrace.h> */
-
-#define REGISTER_PTRACE_ADDR(regno) \
- (regno < FP0_REGNUM ? GPR_BASE + (regno) \
- : regno == PC_REGNUM ? PC \
- : regno >= FP0_REGNUM ? FPR_BASE + ((regno) - FP0_REGNUM) \
- : 0)
+ These ``addresses'' are defined in <sys/ptrace.h>, with
+ the exception of ALPHA_UNIQUE_PTRACE_ADDR. */
-/* Return the ptrace ``address'' of register REGNO. */
+#ifndef ALPHA_UNIQUE_PTRACE_ADDR
+#define ALPHA_UNIQUE_PTRACE_ADDR 0
+#endif
CORE_ADDR
register_addr (int regno, CORE_ADDR blockend)
{
- return REGISTER_PTRACE_ADDR (regno);
+ if (regno == PC_REGNUM)
+ return PC;
+ if (regno == ALPHA_UNIQUE_REGNUM)
+ return ALPHA_UNIQUE_PTRACE_ADDR;
+ if (regno < FP0_REGNUM)
+ return GPR_BASE + regno;
+ else
+ return FPR_BASE + regno - FP0_REGNUM;
}
int
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
+/* Locate the UNIQUE value within the gregset_t. */
+#ifndef ALPHA_REGSET_UNIQUE
+#define ALPHA_REGSET_UNIQUE(ptr) NULL
+#endif
+
/*
* See the comment in m68k-tdep.c regarding the utility of these functions.
*/
void
supply_gregset (gdb_gregset_t *gregsetp)
{
- register int regi;
- register long *regp = ALPHA_REGSET_BASE (gregsetp);
- static char zerobuf[ALPHA_MAX_REGISTER_RAW_SIZE] =
- {0};
+ long *regp = ALPHA_REGSET_BASE (gregsetp);
+ void *unique = ALPHA_REGSET_UNIQUE (gregsetp);
- for (regi = 0; regi < 31; regi++)
- supply_register (regi, (char *) (regp + regi));
-
- supply_register (PC_REGNUM, (char *) (regp + 31));
-
- /* Fill inaccessible registers with zero. */
- supply_register (ALPHA_ZERO_REGNUM, zerobuf);
- supply_register (FP_REGNUM, zerobuf);
+ /* PC is in slot 32. */
+ alpha_supply_int_regs (-1, regp, regp + 31, unique);
}
void
fill_gregset (gdb_gregset_t *gregsetp, int regno)
{
- int regi;
- register long *regp = ALPHA_REGSET_BASE (gregsetp);
+ long *regp = ALPHA_REGSET_BASE (gregsetp);
+ void *unique = ALPHA_REGSET_UNIQUE (gregsetp);
- for (regi = 0; regi < 31; regi++)
- if ((regno == -1) || (regno == regi))
- *(regp + regi) = *(long *) ®isters[REGISTER_BYTE (regi)];
-
- if ((regno == -1) || (regno == PC_REGNUM))
- *(regp + 31) = *(long *) ®isters[REGISTER_BYTE (PC_REGNUM)];
+ /* PC is in slot 32. */
+ alpha_fill_int_regs (regno, regp, regp + 31, unique);
}
/*
void
supply_fpregset (gdb_fpregset_t *fpregsetp)
{
- register int regi;
- register long *regp = ALPHA_REGSET_BASE (fpregsetp);
+ long *regp = ALPHA_REGSET_BASE (fpregsetp);
- for (regi = 0; regi < 32; regi++)
- supply_register (regi + FP0_REGNUM, (char *) (regp + regi));
+ /* FPCR is in slot 32. */
+ alpha_supply_fp_regs (-1, regp, regp + 31);
}
void
fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
{
- int regi;
- register long *regp = ALPHA_REGSET_BASE (fpregsetp);
+ long *regp = ALPHA_REGSET_BASE (fpregsetp);
- for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++)
- {
- if ((regno == -1) || (regno == regi))
- {
- *(regp + regi - FP0_REGNUM) =
- *(long *) ®isters[REGISTER_BYTE (regi)];
- }
- }
+ /* FPCR is in slot 32. */
+ alpha_fill_fp_regs (regno, regp, regp + 31);
}
#endif
\f
void
_initialize_core_alpha (void)
{
- add_core_fns (&alpha_osf_core_fns);
- add_core_fns (&alpha_elf_core_fns);
+ deprecated_add_core_fns (&alpha_osf_core_fns);
+ deprecated_add_core_fns (&alpha_elf_core_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff