[RFA] Take II: New target am33-linux (mn10300)
Michael Snyder
msnyder@redhat.com
Tue Jun 14 03:03:00 GMT 2005
OK, let's try this again, with benefit of suggestions:
2005-04-29 Michael Snyder <msnyder@redhat.com>
* mn10300-linux-tdep.c: New file.
* Makefile.in: Add rule for mn10300-linux-tdep.o.
* configure.tgt: Add rule for am33 / mn10300-linux.
* mn10300-tdep.h: Add E_FPCR_REGNUM, E_FS0_REGNUM, etc..
Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.736
diff -p -r1.736 Makefile.in
*** Makefile.in 13 Jun 2005 16:15:34 -0000 1.736
--- Makefile.in 14 Jun 2005 00:14:35 -0000
*************** mips-tdep.o: mips-tdep.c $(defs_h) $(gdb
*** 2306,2311 ****
--- 2306,2313 ----
$(floatformat_h)
mipsv4-nat.o: mipsv4-nat.c $(defs_h) $(inferior_h) $(gdbcore_h)
$(target_h) \
$(regcache_h) $(gregset_h)
+ mn10300-linux-tdep.o: mn10300-linux-tdep.c $(defs_h) $(gdbcore_h) \
+ $(gdb_string_h) $(regcache_h) $(mn10300_tdep_h)
mn10300-tdep.o: mn10300-tdep.c $(defs_h) $(arch_utils_h) $(dis_asm_h) \
$(gdbtypes_h) $(regcache_h) $(gdb_string_h) $(gdb_assert_h) \
$(frame_h) $(frame_unwind_h) $(frame_base_h) $(trad_frame_h) \
Index: configure.tgt
===================================================================
RCS file: /cvs/src/src/gdb/configure.tgt,v
retrieving revision 1.167
diff -p -r1.167 configure.tgt
*** configure.tgt 28 May 2005 22:09:03 -0000 1.167
--- configure.tgt 14 Jun 2005 00:14:35 -0000
***************
*** 11,16 ****
--- 11,17 ----
case "${target_cpu}" in
alpha*) gdb_target_cpu=alpha ;;
+ am33_2.0*) gdb_target_cpu=mn10300 ;;
arm*) gdb_target_cpu=arm ;;
avr*) gdb_target_cpu=avr ;;
hppa*) gdb_target_cpu=pa ;;
*************** alpha*-*-netbsd* | alpha*-*-knetbsd*-gnu
*** 47,52 ****
--- 48,56 ----
alpha*-*-openbsd*) gdb_target=nbsd ;;
alpha*-*-*) gdb_target=alpha ;;
+ # mn10300 / am33 liunux
+ am33_2.0*-*-linux*) gdb_target=linux ;;
+
arm*-wince-pe) gdb_target=wince ;;
arm*-*-linux*) gdb_target=linux
build_gdbserver=yes
Index: mn10300-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/mn10300-tdep.c,v
retrieving revision 1.122
diff -p -r1.122 mn10300-tdep.c
*** mn10300-tdep.c 18 Apr 2005 23:14:33 -0000 1.122
--- mn10300-tdep.c 14 Jun 2005 00:14:36 -0000
***************
*** 1,7 ****
/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU
debugger.
! Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
! Software Foundation, Inc.
This file is part of GDB.
--- 1,7 ----
/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU
debugger.
! Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
! Free Software Foundation, Inc.
This file is part of GDB.
*************** mn10300_gdbarch_init (struct gdbarch_inf
*** 965,970 ****
--- 965,974 ----
case bfd_mach_am33:
set_gdbarch_register_name (gdbarch, am33_register_name);
tdep->am33_mode = 1;
+ /* Apparently we should only do this once. */
+ if (!gdbarch_regset_from_core_section_p (gdbarch))
+ set_gdbarch_regset_from_core_section (gdbarch,
+ am33_regset_from_core_section);
break;
default:
internal_error (__FILE__, __LINE__,
Index: mn10300-tdep.h
===================================================================
RCS file: /cvs/src/src/gdb/mn10300-tdep.h,v
retrieving revision 1.3
diff -p -r1.3 mn10300-tdep.h
*** mn10300-tdep.h 18 Apr 2005 23:14:33 -0000 1.3
--- mn10300-tdep.h 14 Jun 2005 00:14:36 -0000
***************
*** 1,7 ****
/* Target-dependent interface for Matsushita MN10300 for GDB, the GNU
debugger.
! Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
! Software Foundation, Inc.
This file is part of GDB.
--- 1,7 ----
/* Target-dependent interface for Matsushita MN10300 for GDB, the GNU
debugger.
! Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
! Free Software Foundation, Inc.
This file is part of GDB.
*************** enum {
*** 44,53 ****
E_E5_REGNUM = 20,
E_E6_REGNUM = 21,
E_E7_REGNUM = 22,
E_MCRH_REGNUM = 26,
E_MCRL_REGNUM = 27,
E_MCVF_REGNUM = 28,
! E_NUM_REGS = 32
};
enum movm_register_bits {
--- 44,58 ----
E_E5_REGNUM = 20,
E_E6_REGNUM = 21,
E_E7_REGNUM = 22,
+ E_E8_REGNUM = 23,
+ E_E9_REGNUM = 24,
+ E_E10_REGNUM = 25,
E_MCRH_REGNUM = 26,
E_MCRL_REGNUM = 27,
E_MCVF_REGNUM = 28,
! E_FPCR_REGNUM = 29,
! E_NUM_REGS = 32,
! E_FS0_REGNUM = 32
};
enum movm_register_bits {
*************** struct gdbarch_tdep
*** 77,80 ****
#define AM33_MODE (gdbarch_tdep (current_gdbarch)->am33_mode)
!
--- 82,88 ----
#define AM33_MODE (gdbarch_tdep (current_gdbarch)->am33_mode)
! #include "regset.h" /* struct regset */
! extern const struct regset *am33_regset_from_core_section (struct
gdbarch *,
! const char *,
! size_t);
Index: mn10300-linux-tdep.c
===================================================================
RCS file: mn10300-linux-tdep.c
diff -N mn10300-linux-tdep.c
*** /dev/null 1 Jan 1970 00:00:00 -0000
--- mn10300-linux-tdep.c 14 Jun 2005 00:16:48 -0000
***************
*** 0 ****
--- 1,469 ----
+ /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU
debugger.
+ Copyright 2003, 2004, 2005
+ Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+ #include "defs.h"
+ #include "gdbcore.h"
+ #include "gdb_string.h"
+ #include "regcache.h"
+ #include "mn10300-tdep.h"
+ #include "gdb_assert.h"
+
+ #include <stdlib.h>
+
+ /* Transliterated from <asm-mn10300/elf.h>... */
+ #define ELF_NGREG 27
+ #define ELF_NFPREG 32
+
+ typedef unsigned char elf_greg_t[4];
+ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+ typedef unsigned char elf_fpreg_t[4];
+ typedef struct
+ {
+ elf_fpreg_t fpregs[ELF_NFPREG];
+ unsigned char fpcr[4];
+ } elf_fpregset_t;
+
+ /* elf_gregset_t register indices stolen from
include/asm-mn10300/ptrace.h. */
+ #define ELF_GREGSET_T_REG_INDEX_A3 0
+ #define ELF_GREGSET_T_REG_INDEX_A2 1
+ #define ELF_GREGSET_T_REG_INDEX_D3 2
+ #define ELF_GREGSET_T_REG_INDEX_D2 3
+ #define ELF_GREGSET_T_REG_INDEX_MCVF 4
+ #define ELF_GREGSET_T_REG_INDEX_MCRL 5
+ #define ELF_GREGSET_T_REG_INDEX_MCRH 6
+ #define ELF_GREGSET_T_REG_INDEX_MDRQ 7
+ #define ELF_GREGSET_T_REG_INDEX_E1 8
+ #define ELF_GREGSET_T_REG_INDEX_E0 9
+ #define ELF_GREGSET_T_REG_INDEX_E7 10
+ #define ELF_GREGSET_T_REG_INDEX_E6 11
+ #define ELF_GREGSET_T_REG_INDEX_E5 12
+ #define ELF_GREGSET_T_REG_INDEX_E4 13
+ #define ELF_GREGSET_T_REG_INDEX_E3 14
+ #define ELF_GREGSET_T_REG_INDEX_E2 15
+ #define ELF_GREGSET_T_REG_INDEX_SP 16
+ #define ELF_GREGSET_T_REG_INDEX_LAR 17
+ #define ELF_GREGSET_T_REG_INDEX_LIR 18
+ #define ELF_GREGSET_T_REG_INDEX_MDR 19
+ #define ELF_GREGSET_T_REG_INDEX_A1 20
+ #define ELF_GREGSET_T_REG_INDEX_A0 21
+ #define ELF_GREGSET_T_REG_INDEX_D1 22
+ #define ELF_GREGSET_T_REG_INDEX_D0 23
+ #define ELF_GREGSET_T_REG_INDEX_ORIG_D0 24
+ #define ELF_GREGSET_T_REG_INDEX_EPSW 25
+ #define ELF_GREGSET_T_REG_INDEX_PC 26
+
+ /* New gdbarch API for corefile registers.
+ Given a section name and size, create a struct reg object
+ with a supply_register and a collect_register method. */
+
+ /* Copy register value of REGNUM from regset to regcache.
+ If REGNUM is -1, do this for all gp registers in regset. */
+
+ static void
+ am33_supply_gregset_method (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t len)
+ {
+ char zerobuf[MAX_REGISTER_SIZE];
+ elf_gregset_t *regp = gregs;
+ int i;
+
+ gdb_assert (len == sizeof (elf_gregset_t));
+
+ switch (regnum) {
+ case E_D0_REGNUM:
+ regcache_raw_supply (regcache, E_D0_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D0));
+ break;
+ case E_D1_REGNUM:
+ regcache_raw_supply (regcache, E_D1_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D1));
+ break;
+ case E_D2_REGNUM:
+ regcache_raw_supply (regcache, E_D2_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D2));
+ break;
+ case E_D3_REGNUM:
+ regcache_raw_supply (regcache, E_D3_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D3));
+ break;
+ case E_A0_REGNUM:
+ regcache_raw_supply (regcache, E_A0_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A0));
+ break;
+ case E_A1_REGNUM:
+ regcache_raw_supply (regcache, E_A1_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A1));
+ break;
+ case E_A2_REGNUM:
+ regcache_raw_supply (regcache, E_A2_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A2));
+ break;
+ case E_A3_REGNUM:
+ regcache_raw_supply (regcache, E_A3_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A3));
+ break;
+ case E_SP_REGNUM:
+ regcache_raw_supply (regcache, E_SP_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_SP));
+ break;
+ case E_PC_REGNUM:
+ regcache_raw_supply (regcache, E_PC_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_PC));
+ break;
+ case E_MDR_REGNUM:
+ regcache_raw_supply (regcache, E_MDR_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MDR));
+ break;
+ case E_PSW_REGNUM:
+ regcache_raw_supply (regcache, E_PSW_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_EPSW));
+ break;
+ case E_LIR_REGNUM:
+ regcache_raw_supply (regcache, E_LIR_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_LIR));
+ break;
+ case E_LAR_REGNUM:
+ regcache_raw_supply (regcache, E_LAR_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_LAR));
+ break;
+ case E_MDRQ_REGNUM:
+ regcache_raw_supply (regcache, E_MDRQ_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MDRQ));
+ break;
+ case E_E0_REGNUM:
+ regcache_raw_supply (regcache, E_E0_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E0));
+ break;
+ case E_E1_REGNUM:
+ regcache_raw_supply (regcache, E_E1_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E1));
+ break;
+ case E_E2_REGNUM:
+ regcache_raw_supply (regcache, E_E2_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E2));
+ break;
+ case E_E3_REGNUM:
+ regcache_raw_supply (regcache, E_E3_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E3));
+ break;
+ case E_E4_REGNUM:
+ regcache_raw_supply (regcache, E_E4_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E4));
+ break;
+ case E_E5_REGNUM:
+ regcache_raw_supply (regcache, E_E5_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E5));
+ break;
+ case E_E6_REGNUM:
+ regcache_raw_supply (regcache, E_E6_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E6));
+ break;
+ case E_E7_REGNUM:
+ regcache_raw_supply (regcache, E_E7_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E7));
+ break;
+
+ /* ssp, msp, and usp are inaccessible. */
+ case E_E8_REGNUM:
+ memset (zerobuf, 0, MAX_REGISTER_SIZE);
+ regcache_raw_supply (regcache, E_E8_REGNUM, zerobuf);
+ break;
+ case E_E9_REGNUM:
+ memset (zerobuf, 0, MAX_REGISTER_SIZE);
+ regcache_raw_supply (regcache, E_E9_REGNUM, zerobuf);
+ break;
+ case E_E10_REGNUM:
+ memset (zerobuf, 0, MAX_REGISTER_SIZE);
+ regcache_raw_supply (regcache, E_E10_REGNUM, zerobuf);
+
+ break;
+ case E_MCRH_REGNUM:
+ regcache_raw_supply (regcache, E_MCRH_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MCRH));
+ break;
+ case E_MCRL_REGNUM:
+ regcache_raw_supply (regcache, E_MCRL_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MCRL));
+ break;
+ case E_MCVF_REGNUM:
+ regcache_raw_supply (regcache, E_MCVF_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MCVF));
+ break;
+ case E_FPCR_REGNUM:
+ /* FPCR is numbered among the GP regs, but handled as an FP reg.
+ Do nothing. */
+ break;
+ case E_FPCR_REGNUM + 1:
+ /* The two unused registers beyond fpcr are inaccessible. */
+ memset (zerobuf, 0, MAX_REGISTER_SIZE);
+ regcache_raw_supply (regcache, E_FPCR_REGNUM + 1, zerobuf);
+ break;
+ case E_FPCR_REGNUM + 2:
+ memset (zerobuf, 0, MAX_REGISTER_SIZE);
+ regcache_raw_supply (regcache, E_FPCR_REGNUM + 2, zerobuf);
+ break;
+ default: /* An error, obviously, but should we error out? */
+ break;
+ case -1:
+ for (i = 0; i < ELF_NGREG; i++)
+ am33_supply_gregset_method (regset, regcache, i, gregs, len);
+ break;
+ }
+ return;
+ }
+
+ /* Copy fp register value of REGNUM from regset to regcache.
+ If REGNUM is -1, do this for all fp registers in regset. */
+
+ static void
+ am33_supply_fpregset_method (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *fpregs, size_t len)
+ {
+ elf_fpregset_t *fpregset = fpregs;
+ int i;
+
+ gdb_assert (len == sizeof (elf_fpregset_t));
+
+ if (regnum == -1)
+ {
+ for (i = 0; i < ELF_NFPREG; i++)
+ am33_supply_fpregset_method (regset, regcache, i, fpregs, len);
+ am33_supply_fpregset_method (regset, regcache,
+ E_FPCR_REGNUM, fpregs, len);
+ }
+ else if (regnum == E_FPCR_REGNUM)
+ regcache_raw_supply (current_regcache, E_FPCR_REGNUM,
+ (void *) &fpregset->fpcr);
+ else if (i >= 0 && i < ELF_NFPREG)
+ regcache_raw_supply (current_regcache, E_FS0_REGNUM + i,
+ (void *) &fpregset->fpregs[i]);
+ /* else error? */
+
+ return;
+ }
+
+ /* Copy register values from regcache to regset. */
+
+ static void
+ am33_collect_gregset_method (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len)
+ {
+ elf_gregset_t *regp = gregs;
+ int i;
+
+ gdb_assert (len == sizeof (elf_gregset_t));
+
+ switch (regnum) {
+ case E_D0_REGNUM:
+ regcache_raw_collect (regcache, E_D0_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D0));
+ break;
+ case E_D1_REGNUM:
+ regcache_raw_collect (regcache, E_D1_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D1));
+ break;
+ case E_D2_REGNUM:
+ regcache_raw_collect (regcache, E_D2_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D2));
+ break;
+ case E_D3_REGNUM:
+ regcache_raw_collect (regcache, E_D3_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_D3));
+ break;
+ case E_A0_REGNUM:
+ regcache_raw_collect (regcache, E_A0_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A0));
+ break;
+ case E_A1_REGNUM:
+ regcache_raw_collect (regcache, E_A1_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A1));
+ break;
+ case E_A2_REGNUM:
+ regcache_raw_collect (regcache, E_A2_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A2));
+ break;
+ case E_A3_REGNUM:
+ regcache_raw_collect (regcache, E_A3_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_A3));
+ break;
+ case E_SP_REGNUM:
+ regcache_raw_collect (regcache, E_SP_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_SP));
+ break;
+ case E_PC_REGNUM:
+ regcache_raw_collect (regcache, E_PC_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_PC));
+ break;
+ case E_MDR_REGNUM:
+ regcache_raw_collect (regcache, E_MDR_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MDR));
+ break;
+ case E_PSW_REGNUM:
+ regcache_raw_collect (regcache, E_PSW_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_EPSW));
+ break;
+ case E_LIR_REGNUM:
+ regcache_raw_collect (regcache, E_LIR_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_LIR));
+ break;
+ case E_LAR_REGNUM:
+ regcache_raw_collect (regcache, E_LAR_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_LAR));
+ break;
+ case E_MDRQ_REGNUM:
+ regcache_raw_collect (regcache, E_MDRQ_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MDRQ));
+ break;
+ case E_E0_REGNUM:
+ regcache_raw_collect (regcache, E_E0_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E0));
+ break;
+ case E_E1_REGNUM:
+ regcache_raw_collect (regcache, E_E1_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E1));
+ break;
+ case E_E2_REGNUM:
+ regcache_raw_collect (regcache, E_E2_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E2));
+ break;
+ case E_E3_REGNUM:
+ regcache_raw_collect (regcache, E_E3_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E3));
+ break;
+ case E_E4_REGNUM:
+ regcache_raw_collect (regcache, E_E4_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E4));
+ break;
+ case E_E5_REGNUM:
+ regcache_raw_collect (regcache, E_E5_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E5));
+ break;
+ case E_E6_REGNUM:
+ regcache_raw_collect (regcache, E_E6_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E6));
+ break;
+ case E_E7_REGNUM:
+ regcache_raw_collect (regcache, E_E7_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_E7));
+ break;
+
+ /* ssp, msp, and usp are inaccessible. */
+ case E_E8_REGNUM:
+ /* The gregset struct has noplace to put this: do nothing. */
+ break;
+ case E_E9_REGNUM:
+ /* The gregset struct has noplace to put this: do nothing. */
+ break;
+ case E_E10_REGNUM:
+ /* The gregset struct has noplace to put this: do nothing. */
+ break;
+ case E_MCRH_REGNUM:
+ regcache_raw_collect (regcache, E_MCRH_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MCRH));
+ break;
+ case E_MCRL_REGNUM:
+ regcache_raw_collect (regcache, E_MCRL_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MCRL));
+ break;
+ case E_MCVF_REGNUM:
+ regcache_raw_collect (regcache, E_MCVF_REGNUM,
+ (void *) (regp + ELF_GREGSET_T_REG_INDEX_MCVF));
+ break;
+ case E_FPCR_REGNUM:
+ /* FPCR is numbered among the GP regs, but handled as an FP reg.
+ Do nothing. */
+ break;
+ case E_FPCR_REGNUM + 1:
+ /* The gregset struct has noplace to put this: do nothing. */
+ break;
+ case E_FPCR_REGNUM + 2:
+ /* The gregset struct has noplace to put this: do nothing. */
+ break;
+ default: /* An error, obviously, but should we error out? */
+ break;
+ case -1:
+ for (i = 0; i < ELF_NGREG; i++)
+ am33_collect_gregset_method (regset, regcache, i, gregs, len);
+ break;
+ }
+ return;
+ }
+
+ /* Copy fp register values from regcache to regset. */
+
+ static void
+ am33_collect_fpregset_method (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *fpregs, size_t len)
+ {
+ elf_fpregset_t *fpregset = fpregs;
+ int i;
+
+ gdb_assert (len == sizeof (elf_fpregset_t));
+
+ if (regnum == -1)
+ {
+ for (i = 0; i < ELF_NFPREG; i++)
+ am33_collect_fpregset_method (regset, regcache, i, fpregs, len);
+ am33_collect_fpregset_method (regset, regcache,
+ E_FPCR_REGNUM, fpregs, len);
+ }
+ else if (regnum == E_FPCR_REGNUM)
+ regcache_raw_collect (current_regcache, E_FPCR_REGNUM,
+ (void *) &fpregset->fpcr);
+ else if (i >= 0 && i < ELF_NFPREG)
+ regcache_raw_collect (current_regcache, E_FS0_REGNUM + i,
+ (void *) &fpregset->fpregs[i]);
+ /* else error? */
+
+ return;
+ }
+
+ /* Create a struct regset from a corefile register section. */
+
+ const struct regset *
+ am33_regset_from_core_section (struct gdbarch *gdbarch,
+ const char *sect_name,
+ size_t sect_size)
+ {
+ /* We will call regset_alloc, and pass the names of the supply and
+ collect methods. */
+
+ if (sect_size == sizeof (elf_fpregset_t))
+ return regset_alloc (gdbarch,
+ am33_supply_fpregset_method,
+ am33_collect_fpregset_method);
+ else
+ return regset_alloc (gdbarch,
+ am33_supply_gregset_method,
+ am33_collect_gregset_method);
+ }
+
+ void
+ _initialize_mn10300_linux_tdep (void)
+ {
+ /* Doesn't require any initialization. */
+ }
+
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