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[RFA] Take III, part 2: am33 linux corefile support


OK, here's this part again.  Mark, I used the osabi mechanism
to register my corefile handlers, and I changed the typedefs
from unsigned char to gdb_byte.

Michael

2005-06-27  Michael Snyder  <msnyder@redhat.com>

	* mn10300-linux-tdep.c: New file.  OSABI sniffer at end.
	* Makefile.in: Add rule for mn10300-linux-tdep.c.
	* config/mn10300/linux.mt: Add mn10300-linux-tdep.c to tdep files.

Index: config/mn10300/linux.mt
===================================================================
RCS file: /cvs/src/src/gdb/config/mn10300/linux.mt,v
retrieving revision 1.1
diff -p -r1.1 linux.mt
*** config/mn10300/linux.mt	28 Jun 2005 00:17:50 -0000	1.1
--- config/mn10300/linux.mt	28 Jun 2005 00:39:24 -0000
***************
*** 1,3 ****
  # Target: Matsushita mn10300 (AM33) running Linux
! TDEPFILES= mn10300-tdep.o solib.o solib-svr4.o
  
--- 1,3 ----
  # Target: Matsushita mn10300 (AM33) running Linux
! TDEPFILES= mn10300-tdep.o mn10300-linux-tdep.o corelow.o solib.o solib-svr4.o
  
Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.738
diff -p -r1.738 Makefile.in
*** Makefile.in	25 Jun 2005 11:54:29 -0000	1.738
--- Makefile.in	28 Jun 2005 00:39:25 -0000
*************** mips-tdep.o: mips-tdep.c $(defs_h) $(gdb
*** 2307,2312 ****
--- 2307,2314 ----
  	$(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: 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	28 Jun 2005 00:39:25 -0000
***************
*** 0 ****
--- 1,504 ----
+ /* 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 "bfd.h"
+ #include "elf-bfd.h"
+ #include "osabi.h"
+ 
+ #include <stdlib.h>
+ 
+ /* Transliterated from <asm-mn10300/elf.h>...  */
+ #define ELF_NGREG 27
+ #define ELF_NFPREG 32
+ 
+ typedef gdb_byte   elf_greg_t[4];
+ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+ 
+ typedef gdb_byte   elf_fpreg_t[4];
+ typedef struct
+ {
+   elf_fpreg_t fpregs[ELF_NFPREG];
+   gdb_byte    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);
+ }
+ 
+ /* AM33 Linux osabi has been recognized.
+    Now's our chance to register our corefile handling.  */
+ 
+ static void
+ am33_linux_init_osabi (struct gdbarch_info gdbinfo, struct gdbarch *gdbarch)
+ {
+   set_gdbarch_regset_from_core_section (gdbarch, 
+ 					am33_regset_from_core_section);
+ }
+ 
+ /* "Sniff" a bfd, claim it if it's ours.
+    It's ours if it's am33 flavor.  */
+ 
+ static enum gdb_osabi
+ am33_linux_elf_osabi_sniffer (bfd *abfd)
+ {
+   const struct bfd_arch_info *info = bfd_get_arch_info (abfd);
+   int eflags = elf_elfheader (abfd) -> e_flags;
+   /* We'll want to have a look at those, anyway... */
+ 
+   if (info->arch == bfd_arch_mn10300)
+     if (info->mach == bfd_mach_am33 || info->mach == bfd_mach_am33_2)
+       if (eflags & (E_MN10300_MACH_AM33 | E_MN10300_MACH_AM33_2)
+ 	  return GDB_OSABI_LINUX;
+ 
+     return GDB_OSABI_UNKNOWN;
+ }
+ 
+ void
+ _initialize_mn10300_linux_tdep (void)
+ {
+   gdbarch_register_osabi (bfd_arch_mn10300, 0, 
+ 			  GDB_OSABI_LINUX, am33_linux_init_osabi);
+   gdbarch_register_osabi_sniffer (bfd_arch_mn10300, 
+ 				  bfd_target_elf_flavour, 
+ 				  am33_linux_elf_osabi_sniffer);
+ }
+ 
Index: mn10300-tdep.h
===================================================================
RCS file: /cvs/src/src/gdb/mn10300-tdep.h,v
retrieving revision 1.4
diff -p -r1.4 mn10300-tdep.h
*** mn10300-tdep.h	28 Jun 2005 00:17:50 -0000	1.4
--- mn10300-tdep.h	28 Jun 2005 00:39:25 -0000
***************
*** 1,6 ****
  /* 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.
--- 1,6 ----
  /* 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);

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