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2002-02-14 Daniel Jacobowitz <drow@mvista.com>

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* gdbserver/Makefile.in: Add regformats directory to INCLUDE_CFLAGS,
        and remove unused $(INCLUDE_DIR).
        Add regcache.c to OBS.
        Add generated register protocol files to clean target.
        Update dependencies for new objects, obsolete old target code.

        * gdbserver/linux-low.c: Remove all platform-specific code to
        new files.  Remove various dead code.  Update to use regcache
        functionality.
        * gdbserver/remote-utils.c (fromhex): Add return statement
        to quiet warning.
        (putpkt): Dynamically allocate buf2 because PBUFSIZ is no longer
        constant.
        (input_interrupt): Add integer parameter to match prototype
        of a signal handler.
        (outreg): Use register_data ().
        (prepare_resume_reply): Use gdbserver_expedite_regs.
        * gdbserver/server.c (main): Dynamically allocate own_buf because
        PBUFSIZ is no longer constant.  Use registers_to_string () and
        registers_from_string ().
        * gdbserver/server.h: No longer include "defs.h".  Add prototypes
        for error (), fatal (), and warning ().  Update definition of
        PBUFSIZ to use regcache functionality.  Add include guard.
        * gdbserver/utils.c (fatal): Add missing ``const''.
        (warning): New function.

        * regformats/regdat.sh: Include "regcache.h" in generated files.
        Provide init_registers () function.
        * regformats/regdef.h: Add prototype for set_register_cache ().
        Add include guard.

        * gdbserver/linux-arm-low.c: New file.
        * gdbserver/linux-i386-low.c: New file.
        * gdbserver/linux-ia64-low.c: New file.
        * gdbserver/linux-m68k-low.c: New file.
        * gdbserver/linux-mips-low.c: New file.
        * gdbserver/linux-ppc-low.c: New file.
        * gdbserver/linux-sh-low.c: New file.

        * gdbserver/regcache.c: New file.
        * gdbserver/regcache.h: New file.

        * gdbserver/low-linux.c: Removed obsolete file.
This commit is contained in:
Daniel Jacobowitz 2002-02-14 06:21:24 +00:00
parent 4cc841d043
commit 0a30fbc4cf
19 changed files with 1060 additions and 1302 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
gdb/ChangeLog
View file

@ -1,3 +1,49 @@
2002-02-14 Daniel Jacobowitz <drow@mvista.com>
* gdbserver/Makefile.in: Add regformats directory to INCLUDE_CFLAGS,
and remove unused $(INCLUDE_DIR).
Add regcache.c to OBS.
Add generated register protocol files to clean target.
Update dependencies for new objects, obsolete old target code.
* gdbserver/linux-low.c: Remove all platform-specific code to
new files. Remove various dead code. Update to use regcache
functionality.
* gdbserver/remote-utils.c (fromhex): Add return statement
to quiet warning.
(putpkt): Dynamically allocate buf2 because PBUFSIZ is no longer
constant.
(input_interrupt): Add integer parameter to match prototype
of a signal handler.
(outreg): Use register_data ().
(prepare_resume_reply): Use gdbserver_expedite_regs.
* gdbserver/server.c (main): Dynamically allocate own_buf because
PBUFSIZ is no longer constant. Use registers_to_string () and
registers_from_string ().
* gdbserver/server.h: No longer include "defs.h". Add prototypes
for error (), fatal (), and warning (). Update definition of
PBUFSIZ to use regcache functionality. Add include guard.
* gdbserver/utils.c (fatal): Add missing ``const''.
(warning): New function.
* regformats/regdat.sh: Include "regcache.h" in generated files.
Provide init_registers () function.
* regformats/regdef.h: Add prototype for set_register_cache ().
Add include guard.
* gdbserver/linux-arm-low.c: New file.
* gdbserver/linux-i386-low.c: New file.
* gdbserver/linux-ia64-low.c: New file.
* gdbserver/linux-m68k-low.c: New file.
* gdbserver/linux-mips-low.c: New file.
* gdbserver/linux-ppc-low.c: New file.
* gdbserver/linux-sh-low.c: New file.
* gdbserver/regcache.c: New file.
* gdbserver/regcache.h: New file.
* gdbserver/low-linux.c: Removed obsolete file.
2002-02-14 Daniel Jacobowitz <drow@mvista.com>
* config/arm/linux.mt: Update GDBSERVER_DEPFILES.

49
gdb/gdbserver/Makefile.in
View file

@ -1,6 +1,5 @@
#Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
#1999, 2000
#Free Software Foundation, Inc.
# Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
# 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
# This file is part of GDB.
@ -97,8 +96,8 @@ READLINE_DEP = $$(READLINE_DIR)
# -I${srcdir} possibly for regex.h also.
# -I${srcdir}/config for more generic config files.
# -I$(srcdir)/../regformats for regdef.h
INCLUDE_CFLAGS = -I. -I.. -I${srcdir} -I${srcdir}/.. -I${srcdir}/../config \
-I$(INCLUDE_DIR) -I$(srcdir)/../regformats
INCLUDE_CFLAGS = -I. -I.. -I${srcdir} -I${srcdir}/.. \
-I$(srcdir)/../regformats
# M{H,T}_CFLAGS, if defined, has host- and target-dependent CFLAGS
# from the config/ directory.
@ -139,7 +138,7 @@ DEPFILES = $(GDBSERVER_DEPFILES)
SOURCES = $(SFILES) $(ALLDEPFILES)
TAGFILES = $(SOURCES) ${HFILES} ${ALLPARAM} ${POSSLIBS}
OBS = utils.o $(GDBSERVER_DEPFILES) server.o remote-utils.o
OBS = utils.o $(GDBSERVER_DEPFILES) server.o remote-utils.o regcache.o
# Prevent Sun make from putting in the machine type. Setting
# TARGET_ARCH to nothing works for SunOS 3, 4.0, but not for 4.1.
@ -201,6 +200,8 @@ tags: TAGS
clean:
rm -f *.o ${ADD_FILES} *~
rm -f gdbserver gdbreplay core make.log
rm -f reg-arm.c reg-i386.c reg-ia64.c reg-m68k.c reg-mips.c
rm -f reg-ppc.c reg-sh.c
distclean: clean
rm -f nm.h tm.h xm.h config.status
@ -239,19 +240,31 @@ MAKEOVERRIDES=
## with no dependencies and no actions.
unexport CHILLFLAGS CHILL_LIB CHILL_FOR_TARGET :
server.o : ${srcdir}/server.c ${srcdir}/server.h
remote-utils.o : ${srcdir}/remote-utils.c ${srcdir}/server.h
low-linux.o : ${srcdir}/low-linux.c ${srcdir}/server.h
low-lynx.o : ${srcdir}/low-lynx.c ${srcdir}/server.h
low-nbsd.o : ${srcdir}/low-nbsd.c ${srcdir}/server.h
low-sim.o : ${srcdir}/low-sim.c ${srcdir}/server.h
low-sparc.o : $(srcdir)/low-sparc.c $(srcdir)/server.h
low-sun3.o : $(srcdir)/low-sun3.c $(srcdir)/server.h
low-hppabsd.o : $(srcdir)/low-hppabsd.c $(srcdir)/server.h
utils.o : ${srcdir}/utils.c ${srcdir}/server.h
regdef_h = $(srcdir)/../regformats/regdef.h
regdat_sh = $(srcdir)/../regformats/regdat.sh
regdef_h = $(srcdir)/../regformats/regdef.h
regcache_h = $(srcdir)/regcache.h
server_h = $(srcdir)/server.h $(regcache_h)
server.o: server.c $(server_h)
remote-utils.o: remote-utils.c $(server_h)
utils.o: utils.c $(server_h)
regcache.o: regcache.c $(server_h) $(regdef_h)
linux-low.o: linux-low.c $(server_h)
linux-low-arm.o: linux-low-arm.c $(server_h)
linux-low-i386.o: linux-low-i386.c $(server_h)
linux-low-ia64.o: linux-low-ia64.c $(server_h)
linux-low-mips.o: linux-low-mips.c $(server_h)
linux-low-ppc.o: linux-low-ppc.c $(server_h)
linux-low-sh.o: linux-low-sh.c $(server_h)
# OBSOLETE TARGETS
# OBSOLETE # low-lynx.o : ${srcdir}/low-lynx.c ${srcdir}/server.h
# OBSOLETE # low-nbsd.o : ${srcdir}/low-nbsd.c ${srcdir}/server.h
# OBSOLETE # low-sim.o : ${srcdir}/low-sim.c ${srcdir}/server.h
# OBSOLETE # low-sparc.o : $(srcdir)/low-sparc.c $(srcdir)/server.h
# OBSOLETE # low-sun3.o : $(srcdir)/low-sun3.c $(srcdir)/server.h
# OBSOLETE # low-hppabsd.o : $(srcdir)/low-hppabsd.c $(srcdir)/server.h
reg-arm.o : reg-arm.c $(regdef_h)
reg-arm.c : $(srcdir)/../regformats/reg-arm.dat $(regdat_sh)

46
gdb/gdbserver/linux-arm-low.c Normal file
View file

@ -0,0 +1,46 @@
/* GNU/Linux/ARM specific low level interface, for the remote server for GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
int num_regs = 16;
int regmap[] = {
0, 4, 8, 12, 16, 20, 24, 28,
32, 36, 40, 44, 48, 52, 56, 60,
};
int
cannot_store_register (int regno)
{
return (regno >= num_regs);
}
int
cannot_fetch_register (int regno)
{
return (regno >= num_regs);
}

59
gdb/gdbserver/linux-i386-low.c Normal file
View file

@ -0,0 +1,59 @@
/* GNU/Linux/i386 specific low level interface, for the remote server for GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
/* This module only supports access to the general purpose registers.
Adjust the relevant constants accordingly.
FIXME: kettenis/2001-03-28: We should really use PTRACE_GETREGS to
get at the registers. Better yet, we should try to share code with
i386-linux-nat.c. */
int num_regs = 16;
/* This stuff comes from i386-linux-nat.c. */
/* Mapping between the general-purpose registers in `struct user'
format and GDB's register array layout. */
int regmap[] =
{
EAX * 4, ECX * 4, EDX * 4, EBX * 4,
UESP * 4, EBP * 4, ESI * 4, EDI * 4,
EIP * 4, EFL * 4, CS * 4, SS * 4,
DS * 4, ES * 4, FS * 4, GS * 4
};
int
cannot_store_register (int regno)
{
return (regno >= num_regs);
}
int
cannot_fetch_register (int regno)
{
return (regno >= num_regs);
}

296
gdb/gdbserver/linux-ia64-low.c Normal file
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@ -0,0 +1,296 @@
/* GNU/Linux/IA64 specific low level interface, for the remote server for GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
int num_regs = 590;
#include <asm/ptrace_offsets.h>
int regmap[] =
{
/* general registers */
-1, /* gr0 not available; i.e, it's always zero */
PT_R1,
PT_R2,
PT_R3,
PT_R4,
PT_R5,
PT_R6,
PT_R7,
PT_R8,
PT_R9,
PT_R10,
PT_R11,
PT_R12,
PT_R13,
PT_R14,
PT_R15,
PT_R16,
PT_R17,
PT_R18,
PT_R19,
PT_R20,
PT_R21,
PT_R22,
PT_R23,
PT_R24,
PT_R25,
PT_R26,
PT_R27,
PT_R28,
PT_R29,
PT_R30,
PT_R31,
/* gr32 through gr127 not directly available via the ptrace interface */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
/* Floating point registers */
-1, -1, /* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */
PT_F2,
PT_F3,
PT_F4,
PT_F5,
PT_F6,
PT_F7,
PT_F8,
PT_F9,
PT_F10,
PT_F11,
PT_F12,
PT_F13,
PT_F14,
PT_F15,
PT_F16,
PT_F17,
PT_F18,
PT_F19,
PT_F20,
PT_F21,
PT_F22,
PT_F23,
PT_F24,
PT_F25,
PT_F26,
PT_F27,
PT_F28,
PT_F29,
PT_F30,
PT_F31,
PT_F32,
PT_F33,
PT_F34,
PT_F35,
PT_F36,
PT_F37,
PT_F38,
PT_F39,
PT_F40,
PT_F41,
PT_F42,
PT_F43,
PT_F44,
PT_F45,
PT_F46,
PT_F47,
PT_F48,
PT_F49,
PT_F50,
PT_F51,
PT_F52,
PT_F53,
PT_F54,
PT_F55,
PT_F56,
PT_F57,
PT_F58,
PT_F59,
PT_F60,
PT_F61,
PT_F62,
PT_F63,
PT_F64,
PT_F65,
PT_F66,
PT_F67,
PT_F68,
PT_F69,
PT_F70,
PT_F71,
PT_F72,
PT_F73,
PT_F74,
PT_F75,
PT_F76,
PT_F77,
PT_F78,
PT_F79,
PT_F80,
PT_F81,
PT_F82,
PT_F83,
PT_F84,
PT_F85,
PT_F86,
PT_F87,
PT_F88,
PT_F89,
PT_F90,
PT_F91,
PT_F92,
PT_F93,
PT_F94,
PT_F95,
PT_F96,
PT_F97,
PT_F98,
PT_F99,
PT_F100,
PT_F101,
PT_F102,
PT_F103,
PT_F104,
PT_F105,
PT_F106,
PT_F107,
PT_F108,
PT_F109,
PT_F110,
PT_F111,
PT_F112,
PT_F113,
PT_F114,
PT_F115,
PT_F116,
PT_F117,
PT_F118,
PT_F119,
PT_F120,
PT_F121,
PT_F122,
PT_F123,
PT_F124,
PT_F125,
PT_F126,
PT_F127,
/* predicate registers - we don't fetch these individually */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
/* branch registers */
PT_B0,
PT_B1,
PT_B2,
PT_B3,
PT_B4,
PT_B5,
PT_B6,
PT_B7,
/* virtual frame pointer and virtual return address pointer */
-1, -1,
/* other registers */
PT_PR,
PT_CR_IIP, /* ip */
PT_CR_IPSR, /* psr */
PT_CFM, /* cfm */
/* kernel registers not visible via ptrace interface (?) */
-1, -1, -1, -1, -1, -1, -1, -1,
/* hole */
-1, -1, -1, -1, -1, -1, -1, -1,
PT_AR_RSC,
PT_AR_BSP,
PT_AR_BSPSTORE,
PT_AR_RNAT,
-1,
-1, /* Not available: FCR, IA32 floating control register */
-1, -1,
-1, /* Not available: EFLAG */
-1, /* Not available: CSD */
-1, /* Not available: SSD */
-1, /* Not available: CFLG */
-1, /* Not available: FSR */
-1, /* Not available: FIR */
-1, /* Not available: FDR */
-1,
PT_AR_CCV,
-1, -1, -1,
PT_AR_UNAT,
-1, -1, -1,
PT_AR_FPSR,
-1, -1, -1,
-1, /* Not available: ITC */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1,
PT_AR_PFS,
PT_AR_LC,
-1, /* Not available: EC, the Epilog Count register */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1,
/* nat bits - not fetched directly; instead we obtain these bits from
either rnat or unat or from memory. */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
};
int
cannot_store_register (int regno)
{
return 0;
}
int
cannot_fetch_register (int regno)
{
return 0;
}

513
gdb/gdbserver/linux-low.c
View file

@ -31,22 +31,15 @@
#include <sys/ioctl.h>
#include <fcntl.h>
#include <string.h>
/***************Begin MY defs*********************/
static char my_registers[REGISTER_BYTES];
char *registers = my_registers;
/***************End MY defs*********************/
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
#include <stdlib.h>
#include <unistd.h>
#define PTRACE_ARG3_TYPE long
#define PTRACE_XFER_TYPE int
extern int errno;
static void initialize_arch (void);
extern int num_regs;
extern int regmap[];
/* Start an inferior process and returns its pid.
ALLARGS is a vector of program-name and args. */
@ -156,432 +149,23 @@ myresume (int step, int signal)
perror_with_name ("ptrace");
}
#if !defined (offsetof)
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
#endif
/* U_REGS_OFFSET is the offset of the registers within the u area. */
#if !defined (U_REGS_OFFSET)
#define U_REGS_OFFSET \
ptrace (PT_READ_U, inferior_pid, \
(PTRACE_ARG3_TYPE) (offsetof (struct user, u_ar0)), 0) \
- KERNEL_U_ADDR
#endif
#ifdef I386_GNULINUX_TARGET
/* This module only supports access to the general purpose registers.
Adjust the relevant constants accordingly.
FIXME: kettenis/2001-03-28: We should really use PTRACE_GETREGS to
get at the registers. Better yet, we should try to share code with
i386-linux-nat.c. */
#undef NUM_FREGS
#define NUM_FREGS 0
#undef NUM_REGS
#define NUM_REGS NUM_GREGS
/* This stuff comes from i386-tdep.c. */
/* i386_register_byte[i] is the offset into the register file of the
start of register number i. We initialize this from
i386_register_raw_size. */
int i386_register_byte[MAX_NUM_REGS];
/* i386_register_raw_size[i] is the number of bytes of storage in
GDB's register array occupied by register i. */
int i386_register_raw_size[MAX_NUM_REGS] = {
4, 4, 4, 4,
4, 4, 4, 4,
4, 4, 4, 4,
4, 4, 4, 4,
10, 10, 10, 10,
10, 10, 10, 10,
4, 4, 4, 4,
4, 4, 4, 4,
16, 16, 16, 16,
16, 16, 16, 16,
4
};
static void
initialize_arch (void)
{
/* Initialize the table saying where each register starts in the
register file. */
{
int i, offset;
offset = 0;
for (i = 0; i < MAX_NUM_REGS; i++)
{
i386_register_byte[i] = offset;
offset += i386_register_raw_size[i];
}
}
}
/* This stuff comes from i386-linux-nat.c. */
/* Mapping between the general-purpose registers in `struct user'
format and GDB's register array layout. */
static int regmap[] =
{
EAX, ECX, EDX, EBX,
UESP, EBP, ESI, EDI,
EIP, EFL, CS, SS,
DS, ES, FS, GS
};
/* Return the address of register REGNUM. BLOCKEND is the value of
u.u_ar0, which should point to the registers. */
CORE_ADDR
register_u_addr (CORE_ADDR blockend, int regnum)
{
return (blockend + 4 * regmap[regnum]);
}
#elif defined(TARGET_M68K)
static void
initialize_arch (void)
{
return;
}
/* 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. */
#define REGISTER_RAW_SIZE(regno) register_size((regno))
int
m68k_linux_register_u_addr (int blockend, int regnum)
{
return (blockend + 4 * regmap[regnum]);
}
#elif defined(IA64_GNULINUX_TARGET)
#undef NUM_FREGS
#define NUM_FREGS 0
#include <asm/ptrace_offsets.h>
static int u_offsets[] =
{
/* general registers */
-1, /* gr0 not available; i.e, it's always zero */
PT_R1,
PT_R2,
PT_R3,
PT_R4,
PT_R5,
PT_R6,
PT_R7,
PT_R8,
PT_R9,
PT_R10,
PT_R11,
PT_R12,
PT_R13,
PT_R14,
PT_R15,
PT_R16,
PT_R17,
PT_R18,
PT_R19,
PT_R20,
PT_R21,
PT_R22,
PT_R23,
PT_R24,
PT_R25,
PT_R26,
PT_R27,
PT_R28,
PT_R29,
PT_R30,
PT_R31,
/* gr32 through gr127 not directly available via the ptrace interface */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
/* Floating point registers */
-1, -1, /* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */
PT_F2,
PT_F3,
PT_F4,
PT_F5,
PT_F6,
PT_F7,
PT_F8,
PT_F9,
PT_F10,
PT_F11,
PT_F12,
PT_F13,
PT_F14,
PT_F15,
PT_F16,
PT_F17,
PT_F18,
PT_F19,
PT_F20,
PT_F21,
PT_F22,
PT_F23,
PT_F24,
PT_F25,
PT_F26,
PT_F27,
PT_F28,
PT_F29,
PT_F30,
PT_F31,
PT_F32,
PT_F33,
PT_F34,
PT_F35,
PT_F36,
PT_F37,
PT_F38,
PT_F39,
PT_F40,
PT_F41,
PT_F42,
PT_F43,
PT_F44,
PT_F45,
PT_F46,
PT_F47,
PT_F48,
PT_F49,
PT_F50,
PT_F51,
PT_F52,
PT_F53,
PT_F54,
PT_F55,
PT_F56,
PT_F57,
PT_F58,
PT_F59,
PT_F60,
PT_F61,
PT_F62,
PT_F63,
PT_F64,
PT_F65,
PT_F66,
PT_F67,
PT_F68,
PT_F69,
PT_F70,
PT_F71,
PT_F72,
PT_F73,
PT_F74,
PT_F75,
PT_F76,
PT_F77,
PT_F78,
PT_F79,
PT_F80,
PT_F81,
PT_F82,
PT_F83,
PT_F84,
PT_F85,
PT_F86,
PT_F87,
PT_F88,
PT_F89,
PT_F90,
PT_F91,
PT_F92,
PT_F93,
PT_F94,
PT_F95,
PT_F96,
PT_F97,
PT_F98,
PT_F99,
PT_F100,
PT_F101,
PT_F102,
PT_F103,
PT_F104,
PT_F105,
PT_F106,
PT_F107,
PT_F108,
PT_F109,
PT_F110,
PT_F111,
PT_F112,
PT_F113,
PT_F114,
PT_F115,
PT_F116,
PT_F117,
PT_F118,
PT_F119,
PT_F120,
PT_F121,
PT_F122,
PT_F123,
PT_F124,
PT_F125,
PT_F126,
PT_F127,
/* predicate registers - we don't fetch these individually */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
/* branch registers */
PT_B0,
PT_B1,
PT_B2,
PT_B3,
PT_B4,
PT_B5,
PT_B6,
PT_B7,
/* virtual frame pointer and virtual return address pointer */
-1, -1,
/* other registers */
PT_PR,
PT_CR_IIP, /* ip */
PT_CR_IPSR, /* psr */
PT_CFM, /* cfm */
/* kernel registers not visible via ptrace interface (?) */
-1, -1, -1, -1, -1, -1, -1, -1,
/* hole */
-1, -1, -1, -1, -1, -1, -1, -1,
PT_AR_RSC,
PT_AR_BSP,
PT_AR_BSPSTORE,
PT_AR_RNAT,
-1,
-1, /* Not available: FCR, IA32 floating control register */
-1, -1,
-1, /* Not available: EFLAG */
-1, /* Not available: CSD */
-1, /* Not available: SSD */
-1, /* Not available: CFLG */
-1, /* Not available: FSR */
-1, /* Not available: FIR */
-1, /* Not available: FDR */
-1,
PT_AR_CCV,
-1, -1, -1,
PT_AR_UNAT,
-1, -1, -1,
PT_AR_FPSR,
-1, -1, -1,
-1, /* Not available: ITC */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1,
PT_AR_PFS,
PT_AR_LC,
-1, /* Not available: EC, the Epilog Count register */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1,
/* nat bits - not fetched directly; instead we obtain these bits from
either rnat or unat or from memory. */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
};
int
ia64_register_u_addr (int blockend, int regnum)
register_addr (int regnum)
{
int addr;
if (regnum < 0 || regnum >= NUM_REGS)
if (regnum < 0 || regnum >= num_regs)
error ("Invalid register number %d.", regnum);
addr = u_offsets[regnum];
addr = regmap[regnum];
if (addr == -1)
addr = 0;
return addr;
}
static void
initialize_arch (void)
{
return;
}
#elif defined(ARM_GNULINUX_TARGET)
int arm_register_u_addr(blockend, regnum)
int blockend;
int regnum;
{
return blockend + REGISTER_BYTE(regnum);
}
static void
initialize_arch ()
{
}
#endif
CORE_ADDR
register_addr (int regno, CORE_ADDR blockend)
{
CORE_ADDR addr;
if (regno < 0 || regno >= NUM_REGS)
error ("Invalid register number %d.", regno);
REGISTER_U_ADDR (addr, blockend, regno);
return addr;
}
/* Fetch one register. */
static void
@ -590,16 +174,18 @@ fetch_register (int regno)
CORE_ADDR regaddr;
register int i;
/* Offset of registers within the u area. */
unsigned int offset;
if (regno >= num_regs)
return;
if (cannot_fetch_register (regno))
return;
offset = U_REGS_OFFSET;
regaddr = register_addr (regno, offset);
regaddr = register_addr (regno);
if (regaddr == -1)
return;
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
*(PTRACE_XFER_TYPE *) &registers[REGISTER_BYTE (regno) + i] =
*(PTRACE_XFER_TYPE *) (register_data (regno) + i) =
ptrace (PTRACE_PEEKUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, 0);
regaddr += sizeof (PTRACE_XFER_TYPE);
if (errno != 0)
@ -622,7 +208,7 @@ void
fetch_inferior_registers (int regno)
{
if (regno == -1 || regno == 0)
for (regno = 0; regno < NUM_REGS - NUM_FREGS; regno++)
for (regno = 0; regno < num_regs; regno++)
fetch_register (regno);
else
fetch_register (regno);
@ -637,62 +223,43 @@ store_inferior_registers (int regno)
{
CORE_ADDR regaddr;
int i;
unsigned int offset = U_REGS_OFFSET;
if (regno >= 0)
{
#if 0
if (CANNOT_STORE_REGISTER (regno))
if (regno >= num_regs)
return;
if (cannot_store_register (regno))
return;
regaddr = register_addr (regno);
if (regaddr == -1)
return;
#endif
regaddr = register_addr (regno, offset);
errno = 0;
#if 0
if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
scratch = *(int *) &registers[REGISTER_BYTE (regno)] | 0x3;
ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
scratch, 0);
errno = 0;
ptrace (PTRACE_POKEUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) (register_data (regno) + i));
if (errno != 0)
{
/* Error, even if attached. Failing to write these two
registers is pretty serious. */
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
/* Warning, not error, in case we are attached; sometimes the
kernel doesn't let us at the registers. */
char *err = strerror (errno);
char *msg = alloca (strlen (err) + 128);
sprintf (msg, "writing register %d: %s",
regno, err);
error (msg);
return;
}
regaddr += sizeof (int);
}
else
#endif
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
errno = 0;
ptrace (PTRACE_POKEUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) &registers[REGISTER_BYTE (regno) + i]);
if (errno != 0)
{
/* Warning, not error, in case we are attached; sometimes the
kernel doesn't let us at the registers. */
char *err = strerror (errno);
char *msg = alloca (strlen (err) + 128);
sprintf (msg, "writing register %d: %s",
regno, err);
error (msg);
return;
}
regaddr += sizeof (int);
}
}
else
for (regno = 0; regno < NUM_REGS - NUM_FREGS; regno++)
for (regno = 0; regno < num_regs; regno++)
store_inferior_registers (regno);
}
/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
in the NEW_SUN_PTRACE case.
It ought to be straightforward. But it appears that writing did
not write the data that I specified. I cannot understand where
it got the data that it actually did write. */
/* Copy LEN bytes from inferior's memory starting at MEMADDR
to debugger memory starting at MYADDR. */
@ -772,5 +339,5 @@ write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
void
initialize_low (void)
{
initialize_arch ();
init_registers ();
}

64
gdb/gdbserver/linux-m68k-low.c Normal file
View file

@ -0,0 +1,64 @@
/* GNU/Linux/m68k specific low level interface, for the remote server for GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
int num_regs = 31;
/* This table must line up with REGISTER_NAMES in tm-m68k.h */
int regmap[] =
{
#ifdef PT_D0
PT_D0 * 4, PT_D1 * 4, PT_D2 * 4, PT_D3 * 4,
PT_D4 * 4, PT_D5 * 4, PT_D6 * 4, PT_D7 * 4,
PT_A0 * 4, PT_A1 * 4, PT_A2 * 4, PT_A3 * 4,
PT_A4 * 4, PT_A5 * 4, PT_A6 * 4, PT_USP * 4,
PT_SR * 4, PT_PC * 4,
#else
14 * 4, 0 * 4, 1 * 4, 2 * 4, 3 * 4, 4 * 4, 5 * 4, 6 * 4,
7 * 4, 8 * 4, 9 * 4, 10 * 4, 11 * 4, 12 * 4, 13 * 4, 15 * 4,
17 * 4, 18 * 4,
#endif
#ifdef PT_FP0
PT_FP0 * 4, PT_FP1 * 4, PT_FP2 * 4, PT_FP3 * 4,
PT_FP4 * 4, PT_FP5 * 4, PT_FP6 * 4, PT_FP7 * 4,
PT_FPCR * 4, PT_FPSR * 4, PT_FPIAR * 4
#else
21 * 4, 24 * 4, 27 * 4, 30 * 4, 33 * 4, 36 * 4,
39 * 4, 42 * 4, 45 * 4, 46 * 4, 47 * 4
#endif
};
int
cannot_store_register (int regno)
{
return (regno >= num_regs);
}
int
cannot_fetch_register (int regno)
{
return (regno >= num_regs);
}

104
gdb/gdbserver/linux-mips-low.c Normal file
View file

@ -0,0 +1,104 @@
/* GNU/Linux/MIPS specific low level interface, for the remote server for GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
int num_regs = 90;
#include <asm/ptrace.h>
/* Return the ptrace ``address'' of register REGNO. */
/* Matches mips_generic32_regs */
int regmap[] = {
0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 30, 31,
-1, MMLO, MMHI, BADVADDR, CAUSE, PC,
FPR_BASE, FPR_BASE + 1, FPR_BASE + 2, FPR_BASE + 3,
FPR_BASE + 4, FPR_BASE + 5, FPR_BASE + 6, FPR_BASE + 7,
FPR_BASE + 8, FPR_BASE + 8, FPR_BASE + 10, FPR_BASE + 11,
FPR_BASE + 12, FPR_BASE + 13, FPR_BASE + 14, FPR_BASE + 15,
FPR_BASE + 16, FPR_BASE + 17, FPR_BASE + 18, FPR_BASE + 19,
FPR_BASE + 20, FPR_BASE + 21, FPR_BASE + 22, FPR_BASE + 23,
FPR_BASE + 24, FPR_BASE + 25, FPR_BASE + 26, FPR_BASE + 27,
FPR_BASE + 28, FPR_BASE + 29, FPR_BASE + 30, FPR_BASE + 31,
FPC_CSR, FPC_EIR,
-1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
};
/* From mips-linux-nat.c. */
/* Pseudo registers can not be read. ptrace does not provide a way to
read (or set) PS_REGNUM, and there's no point in reading or setting
ZERO_REGNUM. We also can not set BADVADDR, CAUSE, or FCRIR via
ptrace(). */
int
cannot_fetch_register (int regno)
{
struct reg *reg;
if (regmap[regno] == -1)
return 1;
reg = find_register_by_number (regno);
if (strcmp (reg->name, "zero") == 0)
return 1;
return 0;
}
int
cannot_store_register (int regno)
{
struct reg *reg;
if (regmap[regno] == -1)
return 1;
reg = find_register_by_number (regno);
if (strcmp (reg->name, "zero") == 0)
return 1;
if (strcmp (reg->name, "cause") == 0)
return 1;
if (strcmp (reg->name, "bad") == 0)
return 1;
if (strcmp (reg->name, "fir") == 0)
return 1;
return 0;
}

61
gdb/gdbserver/linux-ppc-low.c Normal file
View file

@ -0,0 +1,61 @@
/* GNU/Linux/PowerPC specific low level interface, for the remote server for
GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#include <asm/ptrace.h>
int num_regs = 71;
/* Currently, don't check/send MQ. */
int regmap[] =
{PT_R0 * 4, PT_R1 * 4, PT_R2 * 4, PT_R3 * 4,
PT_R4 * 4, PT_R5 * 4, PT_R6 * 4, PT_R7 * 4,
PT_R8 * 4, PT_R9 * 4, PT_R10 * 4, PT_R11 * 4,
PT_R12 * 4, PT_R13 * 4, PT_R14 * 4, PT_R15 * 4,
PT_R16 * 4, PT_R17 * 4, PT_R18 * 4, PT_R19 * 4,
PT_R20 * 4, PT_R21 * 4, PT_R22 * 4, PT_R23 * 4,
PT_R24 * 4, PT_R25 * 4, PT_R26 * 4, PT_R27 * 4,
PT_R28 * 4, PT_R29 * 4, PT_R30 * 4, PT_R31 * 4,
PT_FPR0*4, PT_FPR0*4 + 8, PT_FPR0*4+16, PT_FPR0*4+24,
PT_FPR0*4+32, PT_FPR0*4+40, PT_FPR0*4+48, PT_FPR0*4+56,
PT_FPR0*4+64, PT_FPR0*4+72, PT_FPR0*4+80, PT_FPR0*4+88,
PT_FPR0*4+96, PT_FPR0*4+104, PT_FPR0*4+112, PT_FPR0*4+120,
PT_FPR0*4+128, PT_FPR0*4+136, PT_FPR0*4+144, PT_FPR0*4+152,
PT_FPR0*4+160, PT_FPR0*4+168, PT_FPR0*4+176, PT_FPR0*4+184,
PT_FPR0*4+192, PT_FPR0*4+200, PT_FPR0*4+208, PT_FPR0*4+216,
PT_FPR0*4+224, PT_FPR0*4+232, PT_FPR0*4+240, PT_FPR0*4+248,
PT_NIP * 4, PT_MSR * 4, PT_CCR * 4, PT_LNK * 4,
PT_CTR * 4, PT_XER * 4, -1, };
int
cannot_store_register (int regno)
{
return 0;
}
int
cannot_fetch_register (int regno)
{
return 0;
}

58
gdb/gdbserver/linux-sh-low.c Normal file
View file

@ -0,0 +1,58 @@
/* GNU/Linux/SH specific low level interface, for the remote server for GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
#include <asm/ptrace.h>
int num_regs = 41;
/* Currently, don't check/send MQ. */
int regmap[] = {
0, 4, 8, 12, 16, 20, 24, 28,
32, 36, 40, 44, 48, 52, 56, 60,
REG_PC*4, REG_PR*4, REG_GBR*4, -1,
REG_MACH*4, REG_MACL*4, REG_SR*4,
REG_FPUL*4, REG_FPSCR*4,
REG_FPREG0+0, REG_FPREG0+4, REG_FPREG0+8, REG_FPREG0+12,
REG_FPREG0+16, REG_FPREG0+20, REG_FPREG0+24, REG_FPREG0+28,
REG_FPREG0+32, REG_FPREG0+36, REG_FPREG0+40, REG_FPREG0+44,
REG_FPREG0+48, REG_FPREG0+52, REG_FPREG0+56, REG_FPREG0+60,
};
int
cannot_store_register (int regno)
{
return 0;
}
int
cannot_fetch_register (int regno)
{
return 0;
}

777
gdb/gdbserver/low-linux.c
View file

@ -1,777 +0,0 @@
/* Low level interface to ptrace, for the remote server for GDB.
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
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 "server.h"
#include <sys/wait.h>
#include "frame.h"
#include "inferior.h"
#include <stdio.h>
#include <sys/param.h>
#include <sys/dir.h>
#include <sys/ptrace.h>
#include <sys/user.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <fcntl.h>
/***************Begin MY defs*********************/
static char my_registers[REGISTER_BYTES];
char *registers = my_registers;
/***************End MY defs*********************/
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
/* Default the type of the ptrace transfer to int. */
#ifndef PTRACE_XFER_TYPE
#define PTRACE_XFER_TYPE int
#endif
extern int errno;
static void initialize_arch (void);
/* Start an inferior process and returns its pid.
ALLARGS is a vector of program-name and args. */
int
create_inferior (char *program, char **allargs)
{
int pid;
pid = fork ();
if (pid < 0)
perror_with_name ("fork");
if (pid == 0)
{
ptrace (PTRACE_TRACEME, 0, 0, 0);
execv (program, allargs);
fprintf (stderr, "Cannot exec %s: %s.\n", program,
errno < sys_nerr ? sys_errlist[errno] : "unknown error");
fflush (stderr);
_exit (0177);
}
return pid;
}
/* Attach to an inferior process. */
int
myattach (int pid)
{
if (ptrace (PTRACE_ATTACH, pid, 0, 0) != 0)
{
fprintf (stderr, "Cannot attach to process %d: %s (%d)\n", pid,
errno < sys_nerr ? sys_errlist[errno] : "unknown error",
errno);
fflush (stderr);
_exit (0177);
}
return 0;
}
/* Kill the inferior process. Make us have no inferior. */
void
kill_inferior (void)
{
if (inferior_pid == 0)
return;
ptrace (PTRACE_KILL, inferior_pid, 0, 0);
wait (0);
/*************inferior_died ();****VK**************/
}
/* Return nonzero if the given thread is still alive. */
int
mythread_alive (int pid)
{
return 1;
}
/* Wait for process, returns status */
unsigned char
mywait (char *status)
{
int pid;
union wait w;
enable_async_io ();
pid = waitpid (inferior_pid, &w, 0);
disable_async_io ();
if (pid != inferior_pid)
perror_with_name ("wait");
if (WIFEXITED (w))
{
fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
*status = 'W';
return ((unsigned char) WEXITSTATUS (w));
}
else if (!WIFSTOPPED (w))
{
fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
*status = 'X';
return ((unsigned char) WTERMSIG (w));
}
fetch_inferior_registers (0);
*status = 'T';
return ((unsigned char) WSTOPSIG (w));
}
/* Resume execution of the inferior process.
If STEP is nonzero, single-step it.
If SIGNAL is nonzero, give it that signal. */
void
myresume (int step, int signal)
{
errno = 0;
ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal);
if (errno)
perror_with_name ("ptrace");
}
#if !defined (offsetof)
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
#endif
/* U_REGS_OFFSET is the offset of the registers within the u area. */
#if !defined (U_REGS_OFFSET)
#define U_REGS_OFFSET \
ptrace (PT_READ_U, inferior_pid, \
(PTRACE_ARG3_TYPE) (offsetof (struct user, u_ar0)), 0) \
- KERNEL_U_ADDR
#endif
#ifdef I386_GNULINUX_TARGET
/* This module only supports access to the general purpose registers.
Adjust the relevant constants accordingly.
FIXME: kettenis/2001-03-28: We should really use PTRACE_GETREGS to
get at the registers. Better yet, we should try to share code with
i386-linux-nat.c. */
#undef NUM_FREGS
#define NUM_FREGS 0
#undef NUM_REGS
#define NUM_REGS NUM_GREGS
/* This stuff comes from i386-tdep.c. */
/* i386_register_byte[i] is the offset into the register file of the
start of register number i. We initialize this from
i386_register_raw_size. */
int i386_register_byte[MAX_NUM_REGS];
/* i386_register_raw_size[i] is the number of bytes of storage in
GDB's register array occupied by register i. */
int i386_register_raw_size[MAX_NUM_REGS] = {
4, 4, 4, 4,
4, 4, 4, 4,
4, 4, 4, 4,
4, 4, 4, 4,
10, 10, 10, 10,
10, 10, 10, 10,
4, 4, 4, 4,
4, 4, 4, 4,
16, 16, 16, 16,
16, 16, 16, 16,
4
};
static void
initialize_arch (void)
{
/* Initialize the table saying where each register starts in the
register file. */
{
int i, offset;
offset = 0;
for (i = 0; i < MAX_NUM_REGS; i++)
{
i386_register_byte[i] = offset;
offset += i386_register_raw_size[i];
}
}
}
/* This stuff comes from i386-linux-nat.c. */
/* Mapping between the general-purpose registers in `struct user'
format and GDB's register array layout. */
static int regmap[] =
{
EAX, ECX, EDX, EBX,
UESP, EBP, ESI, EDI,
EIP, EFL, CS, SS,
DS, ES, FS, GS
};
/* Return the address of register REGNUM. BLOCKEND is the value of
u.u_ar0, which should point to the registers. */
CORE_ADDR
register_u_addr (CORE_ADDR blockend, int regnum)
{
return (blockend + 4 * regmap[regnum]);
}
#elif defined(TARGET_M68K)
static void
initialize_arch (void)
{
return;
}
/* 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 (int blockend, int regnum)
{
return (blockend + 4 * regmap[regnum]);
}
#elif defined(IA64_GNULINUX_TARGET)
#undef NUM_FREGS
#define NUM_FREGS 0
#include <asm/ptrace_offsets.h>
static int u_offsets[] =
{
/* general registers */
-1, /* gr0 not available; i.e, it's always zero */
PT_R1,
PT_R2,
PT_R3,
PT_R4,
PT_R5,
PT_R6,
PT_R7,
PT_R8,
PT_R9,
PT_R10,
PT_R11,
PT_R12,
PT_R13,
PT_R14,
PT_R15,
PT_R16,
PT_R17,
PT_R18,
PT_R19,
PT_R20,
PT_R21,
PT_R22,
PT_R23,
PT_R24,
PT_R25,
PT_R26,
PT_R27,
PT_R28,
PT_R29,
PT_R30,
PT_R31,
/* gr32 through gr127 not directly available via the ptrace interface */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
/* Floating point registers */
-1, -1, /* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */
PT_F2,
PT_F3,
PT_F4,
PT_F5,
PT_F6,
PT_F7,
PT_F8,
PT_F9,
PT_F10,
PT_F11,
PT_F12,
PT_F13,
PT_F14,
PT_F15,
PT_F16,
PT_F17,
PT_F18,
PT_F19,
PT_F20,
PT_F21,
PT_F22,
PT_F23,
PT_F24,
PT_F25,
PT_F26,
PT_F27,
PT_F28,
PT_F29,
PT_F30,
PT_F31,
PT_F32,
PT_F33,
PT_F34,
PT_F35,
PT_F36,
PT_F37,
PT_F38,
PT_F39,
PT_F40,
PT_F41,
PT_F42,
PT_F43,
PT_F44,
PT_F45,
PT_F46,
PT_F47,
PT_F48,
PT_F49,
PT_F50,
PT_F51,
PT_F52,
PT_F53,
PT_F54,
PT_F55,
PT_F56,
PT_F57,
PT_F58,
PT_F59,
PT_F60,
PT_F61,
PT_F62,
PT_F63,
PT_F64,
PT_F65,
PT_F66,
PT_F67,
PT_F68,
PT_F69,
PT_F70,
PT_F71,
PT_F72,
PT_F73,
PT_F74,
PT_F75,
PT_F76,
PT_F77,
PT_F78,
PT_F79,
PT_F80,
PT_F81,
PT_F82,
PT_F83,
PT_F84,
PT_F85,
PT_F86,
PT_F87,
PT_F88,
PT_F89,
PT_F90,
PT_F91,
PT_F92,
PT_F93,
PT_F94,
PT_F95,
PT_F96,
PT_F97,
PT_F98,
PT_F99,
PT_F100,
PT_F101,
PT_F102,
PT_F103,
PT_F104,
PT_F105,
PT_F106,
PT_F107,
PT_F108,
PT_F109,
PT_F110,
PT_F111,
PT_F112,
PT_F113,
PT_F114,
PT_F115,
PT_F116,
PT_F117,
PT_F118,
PT_F119,
PT_F120,
PT_F121,
PT_F122,
PT_F123,
PT_F124,
PT_F125,
PT_F126,
PT_F127,
/* predicate registers - we don't fetch these individually */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
/* branch registers */
PT_B0,
PT_B1,
PT_B2,
PT_B3,
PT_B4,
PT_B5,
PT_B6,
PT_B7,
/* virtual frame pointer and virtual return address pointer */
-1, -1,
/* other registers */
PT_PR,
PT_CR_IIP, /* ip */
PT_CR_IPSR, /* psr */
PT_CFM, /* cfm */
/* kernel registers not visible via ptrace interface (?) */
-1, -1, -1, -1, -1, -1, -1, -1,
/* hole */
-1, -1, -1, -1, -1, -1, -1, -1,
PT_AR_RSC,
PT_AR_BSP,
PT_AR_BSPSTORE,
PT_AR_RNAT,
-1,
-1, /* Not available: FCR, IA32 floating control register */
-1, -1,
-1, /* Not available: EFLAG */
-1, /* Not available: CSD */
-1, /* Not available: SSD */
-1, /* Not available: CFLG */
-1, /* Not available: FSR */
-1, /* Not available: FIR */
-1, /* Not available: FDR */
-1,
PT_AR_CCV,
-1, -1, -1,
PT_AR_UNAT,
-1, -1, -1,
PT_AR_FPSR,
-1, -1, -1,
-1, /* Not available: ITC */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1,
PT_AR_PFS,
PT_AR_LC,
-1, /* Not available: EC, the Epilog Count register */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1,
/* nat bits - not fetched directly; instead we obtain these bits from
either rnat or unat or from memory. */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
};
int
ia64_register_u_addr (int blockend, int regnum)
{
int addr;
if (regnum < 0 || regnum >= NUM_REGS)
error ("Invalid register number %d.", regnum);
addr = u_offsets[regnum];
if (addr == -1)
addr = 0;
return addr;
}
static void
initialize_arch (void)
{
return;
}
#elif defined(ARM_GNULINUX_TARGET)
int arm_register_u_addr(blockend, regnum)
int blockend;
int regnum;
{
return blockend + REGISTER_BYTE(regnum);
}
static void
initialize_arch ()
{
}
#endif
CORE_ADDR
register_addr (int regno, CORE_ADDR blockend)
{
CORE_ADDR addr;
if (regno < 0 || regno >= NUM_REGS)
error ("Invalid register number %d.", regno);
REGISTER_U_ADDR (addr, blockend, regno);
return addr;
}
/* Fetch one register. */
static void
fetch_register (int regno)
{
CORE_ADDR regaddr;
register int i;
/* Offset of registers within the u area. */
unsigned int offset;
offset = U_REGS_OFFSET;
regaddr = register_addr (regno, offset);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
*(PTRACE_XFER_TYPE *) &registers[REGISTER_BYTE (regno) + i] =
ptrace (PTRACE_PEEKUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, 0);
regaddr += sizeof (PTRACE_XFER_TYPE);
if (errno != 0)
{
/* Warning, not error, in case we are attached; sometimes the
kernel doesn't let us at the registers. */
char *err = strerror (errno);
char *msg = alloca (strlen (err) + 128);
sprintf (msg, "reading register %d: %s", regno, err);
error (msg);
goto error_exit;
}
}
error_exit:;
}
/* Fetch all registers, or just one, from the child process. */
void
fetch_inferior_registers (int regno)
{
if (regno == -1 || regno == 0)
for (regno = 0; regno < NUM_REGS - NUM_FREGS; regno++)
fetch_register (regno);
else
fetch_register (regno);
}
/* Store our register values back into the inferior.
If REGNO is -1, do this for all registers.
Otherwise, REGNO specifies which register (so we can save time). */
void
store_inferior_registers (int regno)
{
CORE_ADDR regaddr;
int i;
unsigned int offset = U_REGS_OFFSET;
if (regno >= 0)
{
#if 0
if (CANNOT_STORE_REGISTER (regno))
return;
#endif
regaddr = register_addr (regno, offset);
errno = 0;
#if 0
if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
{
scratch = *(int *) &registers[REGISTER_BYTE (regno)] | 0x3;
ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
scratch, 0);
if (errno != 0)
{
/* Error, even if attached. Failing to write these two
registers is pretty serious. */
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
else
#endif
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
errno = 0;
ptrace (PTRACE_POKEUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) &registers[REGISTER_BYTE (regno) + i]);
if (errno != 0)
{
/* Warning, not error, in case we are attached; sometimes the
kernel doesn't let us at the registers. */
char *err = strerror (errno);
char *msg = alloca (strlen (err) + 128);
sprintf (msg, "writing register %d: %s",
regno, err);
error (msg);
return;
}
regaddr += sizeof (int);
}
}
else
for (regno = 0; regno < NUM_REGS - NUM_FREGS; regno++)
store_inferior_registers (regno);
}
/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
in the NEW_SUN_PTRACE case.
It ought to be straightforward. But it appears that writing did
not write the data that I specified. I cannot understand where
it got the data that it actually did write. */
/* Copy LEN bytes from inferior's memory starting at MEMADDR
to debugger memory starting at MYADDR. */
void
read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
register int i;
/* Round starting address down to longword boundary. */
register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_XFER_TYPE);
/* Round ending address up; get number of longwords that makes. */
register int count
= (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1)
/ sizeof (PTRACE_XFER_TYPE);
/* Allocate buffer of that many longwords. */
register PTRACE_XFER_TYPE *buffer
= (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE));
/* Read all the longwords */
for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
{
buffer[i] = ptrace (PTRACE_PEEKTEXT, inferior_pid, addr, 0);
}
/* Copy appropriate bytes out of the buffer. */
memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)), len);
}
/* Copy LEN bytes of data from debugger memory at MYADDR
to inferior's memory at MEMADDR.
On failure (cannot write the inferior)
returns the value of errno. */
int
write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
register int i;
/* Round starting address down to longword boundary. */
register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_XFER_TYPE);
/* Round ending address up; get number of longwords that makes. */
register int count
= (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1) / sizeof (PTRACE_XFER_TYPE);
/* Allocate buffer of that many longwords. */
register PTRACE_XFER_TYPE *buffer = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE));
extern int errno;
/* Fill start and end extra bytes of buffer with existing memory data. */
buffer[0] = ptrace (PTRACE_PEEKTEXT, inferior_pid, addr, 0);
if (count > 1)
{
buffer[count - 1]
= ptrace (PTRACE_PEEKTEXT, inferior_pid,
addr + (count - 1) * sizeof (PTRACE_XFER_TYPE), 0);
}
/* Copy data to be written over corresponding part of buffer */
memcpy ((char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)), myaddr, len);
/* Write the entire buffer. */
for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
ptrace (PTRACE_POKETEXT, inferior_pid, addr, buffer[i]);
if (errno)
return errno;
}
return 0;
}
void
initialize_low (void)
{
initialize_arch ();
}

124
gdb/gdbserver/regcache.c Normal file
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@ -0,0 +1,124 @@
/* Register support routines for the remote server for GDB.
Copyright 2001, 2002
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 "server.h"
#include "regdef.h"
#include <stdlib.h>
#include <string.h>
static char *registers;
static int register_bytes;
static struct reg *reg_defs;
static int num_registers;
const char **gdbserver_expedite_regs;
int
registers_length (void)
{
return 2 * register_bytes;
}
void
set_register_cache (struct reg *regs, int n)
{
int offset, i;
reg_defs = regs;
num_registers = n;
offset = 0;
for (i = 0; i < n; i++)
{
regs[i].offset = offset;
offset += regs[i].size;
}
register_bytes = offset / 8;
registers = malloc (offset / 8);
if (!registers)
fatal ("Could not allocate register cache.");
}
void
registers_to_string (char *buf)
{
convert_int_to_ascii (registers, buf, register_bytes);
}
void
registers_from_string (char *buf)
{
int len = strlen (buf);
if (len != register_bytes * 2)
{
warning ("Wrong sized register packet (expected %d bytes, got %d)", 2*register_bytes, len);
if (len > register_bytes * 2)
len = register_bytes * 2;
}
convert_ascii_to_int (buf, registers, len / 2);
}
struct reg *
find_register_by_name (const char *name)
{
int i;
for (i = 0; i < num_registers; i++)
if (!strcmp (name, reg_defs[i].name))
return &reg_defs[i];
fatal ("Unknown register %s requested", name);
return 0;
}
int
find_regno (const char *name)
{
int i;
for (i = 0; i < num_registers; i++)
if (!strcmp (name, reg_defs[i].name))
return i;
fatal ("Unknown register %s requested", name);
return -1;
}
struct reg *
find_register_by_number (int n)
{
return &reg_defs[n];
}
int
register_size (int n)
{
return reg_defs[n].size / 8;
}
char *
register_data (int n)
{
return registers + (reg_defs[n].offset / 8);
}

49
gdb/gdbserver/regcache.h Normal file
View file

@ -0,0 +1,49 @@
/* Register support routines for the remote server for GDB.
Copyright 2001, 2002 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 REGCACHE_H
#define REGCACHE_H
/* Convert all registers to a string in the currently specified remote
format. */
void registers_to_string (char *buf);
/* Convert a string to register values and fill our register cache. */
void registers_from_string (char *buf);
/* Return the size in bytes of a string-encoded register packet. */
int registers_length (void);
/* Return a pointer to the description of register ``n''. */
struct reg *find_register_by_number (int n);
char *register_data (int n);
int register_size (int n);
int find_regno (const char *name);
extern const char **gdbserver_expedite_regs;
#endif /* REGCACHE_H */

41
gdb/gdbserver/remote-utils.c
View file

@ -1,5 +1,6 @@
/* Remote utility routines for the remote server for GDB.
Copyright 1986, 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
Copyright 1986, 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
2002
Free Software Foundation, Inc.
This file is part of GDB.
@ -183,6 +184,7 @@ fromhex (int a)
return a - 'a' + 10;
else
error ("Reply contains invalid hex digit");
return 0;
}
/* Convert number NIB to a hex digit. */
@ -204,11 +206,13 @@ putpkt (char *buf)
{
int i;
unsigned char csum = 0;
char buf2[PBUFSIZ];
char *buf2;
char buf3[1];
int cnt = strlen (buf);
char *p;
buf2 = malloc (PBUFSIZ);
/* Copy the packet into buffer BUF2, encapsulating it
and giving it a checksum. */
@ -250,11 +254,13 @@ putpkt (char *buf)
else
perror ("putpkt(read)");
free (buf2);
return -1;
}
}
while (buf3[0] != '+');
free (buf2);
return 1; /* Success! */
}
@ -264,7 +270,7 @@ putpkt (char *buf)
will cause us to send a SIGINT to the child. */
static void
input_interrupt (void)
input_interrupt (int unused)
{
fd_set readset;
struct timeval immediate = { 0, 0 };
@ -440,7 +446,7 @@ convert_ascii_to_int (char *from, char *to, int n)
static char *
outreg (int regno, char *buf)
{
int regsize = REGISTER_RAW_SIZE (regno);
int regsize = register_size (regno);
if ((regno >> 12) != 0)
*buf++ = tohex ((regno >> 12) & 0xf);
@ -449,7 +455,7 @@ outreg (int regno, char *buf)
*buf++ = tohex ((regno >> 4) & 0xf);
*buf++ = tohex (regno & 0xf);
*buf++ = ':';
convert_int_to_ascii (&registers[REGISTER_BYTE (regno)], buf, regsize);
convert_int_to_ascii (register_data (regno), buf, regsize);
buf += 2 * regsize;
*buf++ = ';';
@ -474,30 +480,15 @@ prepare_resume_reply (char *buf, char status, unsigned char signo)
if (status == 'T')
{
#ifdef GDBSERVER_RESUME_REGS
static int gdbserver_resume_regs[] = GDBSERVER_RESUME_REGS ;
int i;
for (i = 0;
i < sizeof (gdbserver_resume_regs)
/ sizeof (gdbserver_resume_regs[0]);
i++)
const char **regp = gdbserver_expedite_regs;
while (*regp)
{
int regnum = gdbserver_resume_regs[i];
buf = outreg (regnum, buf);
buf = outreg (find_regno (*regp), buf);
regp ++;
}
#else /* !defined(GDBSERVER_RESUME_REGS) */
buf = outreg (PC_REGNUM, buf);
buf = outreg (FP_REGNUM, buf);
buf = outreg (SP_REGNUM, buf);
if (NPC_REGNUM >= 0)
buf = outreg (NPC_REGNUM, buf);
#ifdef O7_REGNUM
buf = outreg (O7_REGNUM, buf);
#endif
#endif /* GDBSERVER_RESUME_REGS */
/* If the debugger hasn't used any thread features, don't burden it with
threads. If we didn't check this, GDB 4.13 and older would choke. */
threads. If we didn't check this, GDB 4.13 and older would choke. */
if (cont_thread != 0)
{
if (old_thread_from_wait != thread_from_wait)

8
gdb/gdbserver/server.c
View file

@ -59,7 +59,7 @@ extern int remote_debug;
int
main (int argc, char *argv[])
{
char ch, status, own_buf[PBUFSIZ], mem_buf[2000];
char ch, status, *own_buf, mem_buf[2000];
int i = 0;
unsigned char signal;
unsigned int len;
@ -94,6 +94,8 @@ main (int argc, char *argv[])
initialize_low ();
own_buf = malloc (PBUFSIZ);
if (pid == 0)
{
/* Wait till we are at first instruction in program. */
@ -167,10 +169,10 @@ main (int argc, char *argv[])
}
break;
case 'g':
convert_int_to_ascii (registers, own_buf, REGISTER_BYTES);
registers_to_string (own_buf);
break;
case 'G':
convert_ascii_to_int (&own_buf[1], registers, REGISTER_BYTES);
registers_from_string (&own_buf[1]);
store_inferior_registers (-1);
write_ok (own_buf);
break;

29
gdb/gdbserver/server.h
View file

@ -1,5 +1,5 @@
/* Common definitions for remote server for GDB.
Copyright 1993, 1995, 1997, 1998, 1999, 2000
Copyright 1993, 1995, 1997, 1998, 1999, 2000, 2002
Free Software Foundation, Inc.
This file is part of GDB.
@ -19,7 +19,22 @@
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#ifndef SERVER_H
#define SERVER_H
#include "config.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
/* FIXME: Both of these should be autoconf'd for. */
#define NORETURN
typedef long long CORE_ADDR;
#include "regcache.h"
#include <setjmp.h>
/* Target-specific functions */
@ -73,6 +88,10 @@ void decode_M_packet (char *from, CORE_ADDR * mem_addr_ptr,
/* Functions from utils.c */
void perror_with_name (char *string);
void error (const char *string,...);
void fatal (const char *string,...);
void warning (const char *string,...);
/* Maximum number of bytes to read/write at once. The value here
@ -81,6 +100,8 @@ void perror_with_name (char *string);
/* Buffer sizes for transferring memory, registers, etc. Round up PBUFSIZ to
hold all the registers, at least. */
#define PBUFSIZ ((REGISTER_BYTES > MAXBUFBYTES (2000)) \
? (REGISTER_BYTES * 2 + 32) \
#define PBUFSIZ ((registers_length () + 32 > 2000) \
? (registers_length () + 32) \
: 2000)
#endif /* SERVER_H */

16
gdb/gdbserver/utils.c
View file

@ -1,5 +1,5 @@
/* General utility routines for the remote server for GDB.
Copyright 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000
Copyright 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002
Free Software Foundation, Inc.
This file is part of GDB.
@ -75,7 +75,7 @@ error (const char *string,...)
/* VARARGS */
NORETURN void
fatal (char *string,...)
fatal (const char *string,...)
{
va_list args;
va_start (args, string);
@ -85,3 +85,15 @@ fatal (char *string,...)
va_end (args);
exit (1);
}
/* VARARGS */
void
warning (const char *string,...)
{
va_list args;
va_start (args, string);
fprintf (stderr, "gdb: ");
vfprintf (stderr, string, args);
fprintf (stderr, "\n");
va_end (args);
}

12
gdb/regformats/regdat.sh
View file

@ -123,6 +123,7 @@ EOF
exec > new-$2
copyright $1
echo '#include "regdef.h"'
echo '#include "regcache.h"'
echo
offset=0
i=0
@ -151,6 +152,17 @@ done
echo "};"
echo
echo "const char *expedite_regs_${name}[] = { \"`echo ${expedite} | sed 's/,/", "/g'`\", 0 };"
echo
cat <<EOF
void
init_registers ()
{
set_register_cache (regs_${name},
sizeof (regs_${name}) / sizeof (regs_${name}[0]));
gdbserver_expedite_regs = expedite_regs_${name};
}
EOF
# close things off
exec 1>&2

10
gdb/regformats/regdef.h
View file

@ -18,6 +18,9 @@
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef REGDEF_H
#define REGDEF_H
struct reg
{
/* The name of this register - NULL for pad entries. */
@ -34,3 +37,10 @@ struct reg
/* The size (in bits) of the value of this register, as transmitted. */
int size;
};
/* Set the current remote protocol and register cache according to the array
``regs'', with ``n'' elements. */
void set_register_cache (struct reg *regs, int n);
#endif /* REGDEF_H */