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Tue Dec 8 15:09:44 1998 Edith Epstein <eepstein@sophia.cygnus.com>

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* config/m68k/tm-m68k.h (NUM_FREGS): m68k-linux patch.
          Added NUM_FREGS macro.

        * config/m68k/xm-linux.h: m68k-linux patch. New file.

        * config/m68k/tm-linux.h: m68k-linux patch. New file.

        * config/m68k/nm-linux.h: m68k-linux patch. New file.

        * config/m68k/linux.mt: m68k-linux patch. New file.

        * config/m68k/linux.mh: m68k-linux patch. New file.

        * gdbserver/low-linux.c: m68k-linux patch. Added an ifdef
          that checks the value of __GLIBC to decide whether or
          not to include sys/reg.h.

        * m68klinux-nat.c: m68k-linux patch. New file. Note
          both m68k-tdep.c and m68klinux-nat.c contain definitions
          for supply_gregset and supply_fpregset. The definitions
          in m68k-tdep.c are valid is USE_PROC_FS is defined. Otherwise,
          the definitions in m68klinux-nat.c will be used. This is a
          bit of a hack. The supply_* routines do not belong in
          *_tdep.c files. But, there are several lynx ports that currently
          depend on these definitions.

        * configure.tgt: m68k-linux patch. Added m68*-*-linux*
          gdb_target.

        * configure.host: m68k-linux patch. Added m68*-*-linux*
          gdb_host.

        * Makefile.in: m68k-linux patch. Added compile line for
          m68klinux-nat.o
This commit is contained in:
Edith Epstein 1998-12-08 20:41:19 +00:00
parent 9f3ab15add
commit 1994dc7cfc
9 changed files with 384 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
gdb/ChangeLog
View File

@ -1,3 +1,40 @@
Tue Dec 8 15:09:44 1998 Edith Epstein <eepstein@sophia.cygnus.com>
* config/m68k/tm-m68k.h (NUM_FREGS): m68k-linux patch.
Added NUM_FREGS macro.
* config/m68k/xm-linux.h: m68k-linux patch. New file.
* config/m68k/tm-linux.h: m68k-linux patch. New file.
* config/m68k/nm-linux.h: m68k-linux patch. New file.
* config/m68k/linux.mt: m68k-linux patch. New file.
* config/m68k/linux.mh: m68k-linux patch. New file.
* gdbserver/low-linux.c: m68k-linux patch. Added an ifdef
that checks the value of __GLIBC to decide whether or
not to include sys/reg.h.
* m68klinux-nat.c: m68k-linux patch. New file. Note
both m68k-tdep.c and m68klinux-nat.c contain definitions
for supply_gregset and supply_fpregset. The definitions
in m68k-tdep.c are valid is USE_PROC_FS is defined. Otherwise,
the definitions in m68klinux-nat.c will be used. This is a
bit of a hack. The supply_* routines do not belong in
*_tdep.c files. But, there are several lynx ports that currently
depend on these definitions.
* configure.tgt: m68k-linux patch. Added m68*-*-linux*
gdb_target.
* configure.host: m68k-linux patch. Added m68*-*-linux*
gdb_host.
* Makefile.in: m68k-linux patch. Added compile line for
m68klinux-nat.o
1998-12-07 Jason Molenda (jsm@bugshack.cygnus.com)
* config/i386/xm-cygwin.h: Remove REQUEST_QUIT definition.

14
gdb/Makefile.in
View File

@ -54,7 +54,6 @@ INSTALL_DATA = @INSTALL_DATA@
AR = @AR@
AR_FLAGS = qv
RANLIB = @RANLIB@
AWK = @AWK@
DLLTOOL = @DLLTOOL@
WINDRES = @WINDRES@
@ -278,6 +277,11 @@ SIM_OBS =
ANNOTATE_OBS = annotate.o
# start-sanitize-carp
# Multi-arch enabled gdb targets
MACHINE_OBS = @MACHINE_OBS@
# end-sanitize-carp
# Host and target-dependent makefile fragments come in here.
@host_makefile_frag@
@target_makefile_frag@
@ -501,6 +505,9 @@ POSSLIBS = gnu-regex.c gnu-regex.h
# Makefile.in
DEPFILES = $(TDEPFILES) $(XDEPFILES) $(SER_HARDWIRE) $(NATDEPFILES) \
$(start-sanitize-carp) \
$(MACHINE_OBS) \
$(end-sanitize-carp) \
$(REMOTE_OBS) $(SIM_OBS) @CONFIG_OBS@
SOURCES = $(SFILES) $(ALLDEPFILES) $(YYFILES) @CONFIG_SRCS@
@ -1313,6 +1320,9 @@ m68k-tdep.o: m68k-tdep.c $(defs_h) $(frame_h) $(symtab_h) $(value_h) \
m68kly-nat.o: m68kly-nat.c $(defs_h) $(frame_h) $(inferior_h) target.h
m68klinux-nat.o: m68klinux-nat.c $(defs_h) $(frame_h) $(inferior_h) \
$(language_h) $(gdbcore_h) $(floatformat_h) target.h
m88k-nat.o: m88k-nat.c $(defs_h) $(gdbcore_h) $(inferior_h)
m88k-tdep.o: m88k-tdep.c $(defs_h) $(gdbcore_h) $(inferior_h)
@ -1610,8 +1620,8 @@ tahoe-tdep.o: tahoe-tdep.c $(OP_INCLUDE)/tahoe.h $(defs_h) \
#start-sanitize-tic80
tic80-tdep.o: tic80-tdep.c $(defs_h)
#end-sanitize-tic80
#end-sanitize-tic80
target.o: target.c $(bfd_h) $(defs_h) $(gdbcmd_h) $(inferior_h) \
objfiles.h symfile.h target.h gdb_string.h

109
gdb/config/m68k/tm-linux.h Normal file
View File

@ -0,0 +1,109 @@
/* Definitions to target GDB to Linux on m680x0
Copyright (C) 1996,1998 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. */
/* Number of traps that happen between exec'ing the shell to run an
inferior, and when we finally get to the inferior code. This is 2
on most implementations. */
#define START_INFERIOR_TRAPS_EXPECTED 2
/* The following definitions are appropriate when using the ELF
format, where floating point values are returned in fp0, pointer
values in a0 and other values in d0. */
/* Extract from an array REGBUF containing the (raw) register state a
function return value of type TYPE, and copy that, in virtual
format, into VALBUF. */
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
{ \
if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
{ \
REGISTER_CONVERT_TO_VIRTUAL (FP0_REGNUM, TYPE, \
((char *) (REGBUF) \
+ REGISTER_BYTE (FP0_REGNUM)), \
VALBUF); \
} \
else if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \
memcpy (VALBUF, (char *) (REGBUF) + REGISTER_BYTE (A0_REGNUM), \
TYPE_LENGTH (TYPE)); \
else \
memcpy (VALBUF, \
((char *) (REGBUF) \
+ (TYPE_LENGTH (TYPE) >= 4 ? 0 : 4 - TYPE_LENGTH (TYPE))), \
TYPE_LENGTH (TYPE)); \
}
/* Write into appropriate registers a function return value of type
TYPE, given in virtual format. */
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
{ \
if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
{ \
char raw_buffer[REGISTER_RAW_SIZE (FP0_REGNUM)]; \
REGISTER_CONVERT_TO_RAW (TYPE, FP0_REGNUM, VALBUF, raw_buffer); \
write_register_bytes (REGISTER_BYTE (FP0_REGNUM), \
raw_buffer, TYPE_LENGTH (TYPE)); \
} \
else \
{ \
if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \
write_register_bytes (REGISTER_BYTE (A0_REGNUM), VALBUF, \
TYPE_LENGTH (TYPE)); \
write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE)); \
} \
}
#include "tm-sysv4.h"
#include "m68k/tm-m68k.h"
/* Extract from an array REGBUF containing the (raw) register state
the address in which a function should return its structure value,
as a CORE_ADDR (or an expression that can be used as one). */
#undef EXTRACT_STRUCT_VALUE_ADDRESS
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
(*(CORE_ADDR *)((char *) (REGBUF) + REGISTER_BYTE (A0_REGNUM)))
/* Offsets (in target ints) into jmp_buf. */
#define JB_ELEMENT_SIZE 4
#define JB_PC 7
/* Figure out where the longjmp will land. Slurp the args out of the stack.
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 ADDR.
This routine returns true on success */
#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
/* Offset to saved PC in sigcontext, from <asm/sigcontext.h>. */
#define SIGCONTEXT_PC_OFFSET 26
#undef FRAME_SAVED_PC
#define FRAME_SAVED_PC(FRAME) \
(((FRAME)->signal_handler_caller \
? sigtramp_saved_pc (FRAME) \
: read_memory_integer ((FRAME)->frame + 4, 4)))
extern CORE_ADDR sigtramp_saved_pc PARAMS ((struct frame_info *));
#define IN_SIGTRAMP(pc,name) in_sigtramp (pc)
extern int in_sigtramp PARAMS ((CORE_ADDR pc));

2
gdb/config/m68k/tm-m68k.h
View File

@ -104,6 +104,8 @@ extern void m68k_find_saved_regs PARAMS ((struct frame_info *, struct frame_save
#define NUM_REGS 29
#endif
#define NUM_FREGS (NUM_REGS-24)
#ifndef REGISTER_BYTES_OK
#define REGISTER_BYTES_OK(b) \
((b) == REGISTER_BYTES_FP \

40
gdb/config/m68k/xm-linux.h Normal file
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@ -0,0 +1,40 @@
/* Native support for linux, for GDB, the GNU debugger.
Copyright (C) 1996,1998 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. */
#ifndef XM_LINUX_H
#define XM_LINUX_H
/* Pick up most of what we need from the generic m68k host include file. */
#include "m68k/xm-m68k.h"
/* This is the amount to subtract from u.u_ar0
to get the offset in the core file of the register values. */
#define KERNEL_U_ADDR 0x0
#define HAVE_TERMIOS
#define NEED_POSIX_SETPGID
/* Linux has sigsetjmp and siglongjmp */
#define HAVE_SIGSETJMP
/* Need R_OK etc, but USG isn't defined. */
#include <unistd.h>
#endif /* #ifndef XM_LINUX_H */

1
gdb/configure.host
View File

@ -86,6 +86,7 @@ m68*-bull*-sysv*) gdb_host=dpx2 ;;
m68*-hp-bsd*) gdb_host=hp300bsd ;;
m68*-hp-hpux*) gdb_host=hp300hpux ;;
m68*-isi-*) gdb_host=isi ;;
m68*-*-linux*) gdb_host=linux ;;
m68*-*-lynxos*) gdb_host=m68klynx ;;
m68*-*-netbsd*) gdb_host=nbsd ;;
m68*-*-sysv4*) gdb_host=m68kv4 ;;

2
gdb/configure.tgt
View File

@ -147,6 +147,8 @@ m68*-est-*) gdb_target=monitor ;;
m68*-*-aout*) gdb_target=monitor ;;
m68*-*-coff*) gdb_target=monitor ;;
m68*-*-elf*) gdb_target=monitor ;;
m68*-*-linux*) gdb_target=linux
configdirs="${configdirs} gdbserver" ;;
m68*-*-lynxos*) gdb_target=m68klynx
configdirs="${configdirs} gdbserver" ;;
m68*-*-netbsd*) gdb_target=nbsd ;;

37
gdb/gdbserver/low-linux.c
View File

@ -45,8 +45,9 @@ char buf2[MAX_REGISTER_RAW_SIZE];
/***************End MY defs*********************/
#include <sys/ptrace.h>
#if 0
#include <machine/reg.h>
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1)
#include <sys/reg.h>
#endif
extern char **environ;
@ -165,6 +166,7 @@ myresume (step, signal)
- KERNEL_U_ADDR
#endif
#ifndef TARGET_M68K
/* this table must line up with REGISTER_NAMES in tm-i386v.h */
/* symbols like 'EAX' come from <sys/reg.h> */
static int regmap[] =
@ -198,6 +200,37 @@ i386_register_u_addr (blockend, regnum)
return (blockend + 4 * regmap[regnum]);
}
#else /* TARGET_M68K */
/* This table must line up with REGISTER_NAMES in tm-m68k.h */
static int regmap[] =
{
#ifdef PT_D0
PT_D0, PT_D1, PT_D2, PT_D3, PT_D4, PT_D5, PT_D6, PT_D7,
PT_A0, PT_A1, PT_A2, PT_A3, PT_A4, PT_A5, PT_A6, PT_USP,
PT_SR, PT_PC,
#else
14, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15,
17, 18,
#endif
#ifdef PT_FP0
PT_FP0, PT_FP1, PT_FP2, PT_FP3, PT_FP4, PT_FP5, PT_FP6, PT_FP7,
PT_FPCR, PT_FPSR, PT_FPIAR
#else
21, 24, 27, 30, 33, 36, 39, 42, 45, 46, 47
#endif
};
/* BLOCKEND is the value of u.u_ar0, and points to the place where GS
is stored. */
int
m68k_linux_register_u_addr (blockend, regnum)
int blockend;
int regnum;
{
return (blockend + 4 * regmap[regnum]);
}
#endif
CORE_ADDR
register_addr (regno, blockend)

146
gdb/m68klinux-nat.c Normal file
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@ -0,0 +1,146 @@
/* Motorola m68k native support for Linux
Copyright (C) 1996,1998 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 "frame.h"
#include "inferior.h"
#include "language.h"
#include "gdbcore.h"
#ifdef USG
#include <sys/types.h>
#endif
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include <sys/user.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/procfs.h>
#include <sys/file.h>
#include "gdb_stat.h"
#include "floatformat.h"
#include "target.h"
/* This table must line up with REGISTER_NAMES in tm-m68k.h */
static const int regmap[] =
{
PT_D0, PT_D1, PT_D2, PT_D3, PT_D4, PT_D5, PT_D6, PT_D7,
PT_A0, PT_A1, PT_A2, PT_A3, PT_A4, PT_A5, PT_A6, PT_USP,
PT_SR, PT_PC,
/* PT_FP0, ..., PT_FP7 */
21, 24, 27, 30, 33, 36, 39, 42,
/* PT_FPCR, PT_FPSR, PT_FPIAR */
45, 46, 47
};
/* BLOCKEND is the value of u.u_ar0, and points to the place where GS
is stored. */
int
m68k_linux_register_u_addr (blockend, regnum)
int blockend;
int regnum;
{
return (blockend + 4 * regmap[regnum]);
}
/* Given a pointer to a general register set in /proc format (gregset_t *),
unpack the register contents and supply them as gdb's idea of the current
register values. */
#ifndef USE_PROC_FS
void
supply_gregset (gregsetp)
gregset_t *gregsetp;
{
int regi;
for (regi = D0_REGNUM ; regi <= SP_REGNUM ; regi++)
supply_register (regi, (char *) (*gregsetp + regmap[regi]));
supply_register (PS_REGNUM, (char *) (*gregsetp + PT_SR));
supply_register (PC_REGNUM, (char *) (*gregsetp + PT_PC));
}
/* Given a pointer to a floating point register set in /proc format
(fpregset_t *), unpack the register contents and supply them as gdb's
idea of the current floating point register values. */
void
supply_fpregset (fpregsetp)
fpregset_t *fpregsetp;
{
int regi;
for (regi = FP0_REGNUM ; regi < FPC_REGNUM ; regi++)
supply_register (regi, (char *) &fpregsetp->fpregs[(regi - FP0_REGNUM) * 3]);
supply_register (FPC_REGNUM, (char *) &fpregsetp->fpcntl[0]);
supply_register (FPS_REGNUM, (char *) &fpregsetp->fpcntl[1]);
supply_register (FPI_REGNUM, (char *) &fpregsetp->fpcntl[2]);
}
#endif
int
kernel_u_size ()
{
return (sizeof (struct user));
}
/* Return non-zero if PC points into the signal trampoline. */
int
in_sigtramp (pc)
CORE_ADDR pc;
{
CORE_ADDR sp;
char buf[TARGET_SHORT_BIT / TARGET_CHAR_BIT];
int insn;
sp = read_register (SP_REGNUM);
if (pc - 2 < sp)
return 0;
if (read_memory_nobpt (pc, buf, sizeof (buf)))
return 0;
insn = extract_unsigned_integer (buf, sizeof (buf));
if (insn == 0xdefc /* addaw #,sp */
|| insn == 0x7077 /* moveq #119,d0 */
|| insn == 0x4e40 /* trap #0 */
|| insn == 0x203c /* movel #,d0 */)
return 1;
if (read_memory_nobpt (pc - 2, buf, sizeof (buf)))
return 0;
insn = extract_unsigned_integer (buf, sizeof (buf));
if (insn == 0xdefc /* addaw #,sp */
|| insn == 0x7077 /* moveq #119,d0 */
|| insn == 0x4e40 /* trap #0 */
|| insn == 0x203c /* movel #,d0 */)
return 1;
return 0;
}