* Makefile.in (ALLDEPFILES): Add alphanbsd-nat.c and
alphanbsd-tdep.c. (alphanbsd-nat.o): New dependency list. (alphanbsd-tdep.o): Ditto. * NEWS: Note new native NetBSD/alpha configuration. * alphanbsd-nat.c: New file. * alphanbsd-tdep.c: Ditto. * configure.host (alpha*-*-netbsd*): New host. * configure.tgt (alpha*-*-netbsd*): New target. * config/alpha/nbsd.mh: New file. * config/alpha/nbsd.mt: Ditto. * config/alpha/nm-nbsd.h: Ditto. * config/alpha/tm-nbsd.h: Ditto.
This commit is contained in:
Jason Thorpe
parent
36a6271d5e
commit
da8ca43db6
@ -1,3 +1,19 @@
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2002-04-24 Jason Thorpe <thorpej@wasabisystems.com>
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* Makefile.in (ALLDEPFILES): Add alphanbsd-nat.c and
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alphanbsd-tdep.c.
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(alphanbsd-nat.o): New dependency list.
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(alphanbsd-tdep.o): Ditto.
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* NEWS: Note new native NetBSD/alpha configuration.
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* alphanbsd-nat.c: New file.
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* alphanbsd-tdep.c: Ditto.
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* configure.host (alpha*-*-netbsd*): New host.
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* configure.tgt (alpha*-*-netbsd*): New target.
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* config/alpha/nbsd.mh: New file.
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* config/alpha/nbsd.mt: Ditto.
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* config/alpha/nm-nbsd.h: Ditto.
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* config/alpha/tm-nbsd.h: Ditto.
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2002-04-24 Jason Thorpe <thorpej@wasabisystems.com>
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* Makefile.in (ALLDEPFILES): Add alpha-osf1-tdep.c.
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@ -1178,8 +1178,9 @@ unexport CHILLFLAGS CHILL_LIB CHILL_FOR_TARGET :
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ALLDEPFILES = 29k-share/udi/udip2soc.c 29k-share/udi/udr.c \
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29k-share/udi/udi2go32.c \
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a29k-tdep.c a68v-nat.c \
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alpha-nat.c alphabsd-nat.c alpha-tdep.c \
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alpha-linux-tdep.c alpha-osf1-tdep.c alphafbsd-tdep.c \
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alpha-nat.c alphabsd-nat.c alphanbsd-nat.c \
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alpha-tdep.c alpha-linux-tdep.c alphanbsd-tdep.c alpha-osf1-tdep.c \
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alphafbsd-tdep.c \
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arm-linux-nat.c arm-linux-tdep.c arm-tdep.c \
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armnbsd-nat.c armnbsd-tdep.c \
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coff-solib.c \
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@ -1249,6 +1250,9 @@ alpha-nat.o: alpha-nat.c $(defs_h) $(gdbcore_h) $(inferior_h) $(target_h) \
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alphabsd-nat.o: alphabsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
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alpha-tdep.h
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alphanbsd-nat.o: alphanbsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
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$(gdbcore_h) alpha-tdep.h
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alpha-tdep.o: alpha-tdep.c $(defs_h) $(gdbcmd_h) $(gdbcore_h) \
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$(inferior_h) $(symtab_h) $(dis_asm_h) $(gdb_string_h) $(linespec_h) \
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$(regcache_h) $(doublest_h) $(BFD_SRC)/elf-bfd.h alpha-tdep.h
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@ -1259,6 +1263,9 @@ alpha-osf1-tdep.o: alpha-osf1-tdep.c $(defs_h) $(value_h) alpha-tdep.h
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alphafbsd-tdep.o: alphafbsd-tdep.c $(defs_h) $(value_h) alpha-tdep.h
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alphanbsd-tdep.o: alphanbsd-tdep.c $(defs_h) $(gdbcore_h) $(value_h) \
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alpha-tdep.h
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annotate.o: annotate.c $(defs_h) $(annotate_h) $(value_h) $(target_h) $(gdbtypes_h)
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arm-linux-nat.o: arm-linux-nat.c $(defs_h) $(inferior_h) $(gdbcore_h) \
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4
gdb/NEWS
4
gdb/NEWS
@ -3,6 +3,10 @@
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*** Changes since GDB 5.2:
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* New native configurations
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Alpha NetBSD alpha*-*-netbsd*
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* Changes in Alpha configurations.
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Multi-arch support is enabled for all Alpha configurations.
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136
gdb/alphanbsd-nat.c
Normal file
136
gdb/alphanbsd-nat.c
Normal file
@ -0,0 +1,136 @@
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/* Native-dependent code for Alpha NetBSD.
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Copyright 2002 Free Software Foundation, Inc.
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Contributed by Wasabi Systems, Inc.
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This file is part of GDB.
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|
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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,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include <sys/types.h>
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#include <machine/reg.h>
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#include <machine/frame.h>
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#include <machine/pcb.h>
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#include "gdbcore.h"
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#include "regcache.h"
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#include "alpha-tdep.h"
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#ifndef HAVE_GREGSET_T
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typedef struct reg gregset_t;
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#endif
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#ifndef HAVE_FPREGSET_T
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typedef struct fpreg fpregset_t;
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#endif
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#include "gregset.h"
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static void
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||||
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
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||||
CORE_ADDR ignore)
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||||
{
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||||
struct md_coredump *core_reg;
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char *regs;
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int regno;
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||||
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||||
/* Table to map a gdb register number to a trapframe register index. */
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static const int regmap[] =
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||||
{
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FRAME_V0, FRAME_T0, FRAME_T1, FRAME_T2,
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FRAME_T3, FRAME_T4, FRAME_T5, FRAME_T6,
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FRAME_T7, FRAME_S0, FRAME_S1, FRAME_S2,
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FRAME_S3, FRAME_S4, FRAME_S5, FRAME_S6,
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FRAME_A0, FRAME_A1, FRAME_A2, FRAME_A3,
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FRAME_A4, FRAME_A5, FRAME_T8, FRAME_T9,
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FRAME_T10, FRAME_T11, FRAME_RA, FRAME_T12,
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FRAME_AT, FRAME_GP, FRAME_SP
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};
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/* We get everything from one section. */
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if (which != 0)
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return;
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||||
core_reg = (struct md_coredump *) core_reg_sect;
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regs = (char *) &core_reg->md_tf;
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||||
if (core_reg_size < sizeof (*core_reg))
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||||
{
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||||
warning ("Wrong size register set in core file.");
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return;
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}
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/* Integer registers. */
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for (regno = 0; regno < ALPHA_ZERO_REGNUM; regno++)
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supply_register (regno, regs + (regmap[regno] * 8));
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supply_register (ALPHA_ZERO_REGNUM, NULL);
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||||
supply_register (FP_REGNUM, NULL);
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||||
supply_register (PC_REGNUM, regs + (FRAME_PC * 8));
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||||
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||||
/* Floating point registers. */
|
||||
supply_fpregset (&core_reg->md_fpstate);
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||||
}
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||||
|
||||
static void
|
||||
fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, int which,
|
||||
CORE_ADDR ignore)
|
||||
{
|
||||
switch (which)
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||||
{
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||||
case 0: /* Integer registers. */
|
||||
if (core_reg_size != sizeof (struct reg))
|
||||
warning ("Wrong size register set in core file.");
|
||||
else
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||||
supply_gregset ((gregset_t *) core_reg_sect);
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||||
break;
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||||
|
||||
case 2: /* Floating point registers. */
|
||||
if (core_reg_size != sizeof (struct fpreg))
|
||||
warning ("Wrong size FP register set in core file.");
|
||||
else
|
||||
supply_fpregset ((fpregset_t *) core_reg_sect);
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||||
break;
|
||||
|
||||
default:
|
||||
/* Don't know what kind of register request this is; just ignore it. */
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||||
break;
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||||
}
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||||
}
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||||
|
||||
static struct core_fns alphanbsd_core_fns =
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||||
{
|
||||
bfd_target_unknown_flavour, /* core_flavour */
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||||
default_check_format, /* check_format */
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||||
default_core_sniffer, /* core_sniffer */
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||||
fetch_core_registers, /* core_read_registers */
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||||
NULL /* next */
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||||
};
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||||
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||||
static struct core_fns alphanbsd_elfcore_fns =
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||||
{
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||||
bfd_target_elf_flavour, /* core_flavour */
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||||
default_check_format, /* check_format */
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||||
default_core_sniffer, /* core_sniffer */
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||||
fetch_elfcore_registers, /* core_read_registers */
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||||
NULL /* next */
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||||
};
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||||
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||||
void
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||||
_initialize_alphanbsd_nat (void)
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||||
{
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||||
add_core_fns (&alphanbsd_core_fns);
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||||
add_core_fns (&alphanbsd_elfcore_fns);
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||||
}
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146
gdb/alphanbsd-tdep.c
Normal file
146
gdb/alphanbsd-tdep.c
Normal file
@ -0,0 +1,146 @@
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||||
/* Target-dependent code for NetBSD/Alpha.
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||||
Copyright 2002 Free Software Foundation, Inc.
|
||||
Contributed by Wasabi Systems, Inc.
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||||
|
||||
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"
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||||
#include "gdbcore.h"
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||||
#include "value.h"
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||||
#include "solib-svr4.h"
|
||||
|
||||
#include "alpha-tdep.h"
|
||||
|
||||
/* Fetch (and possibly build) an appropriate link_map_offsets
|
||||
structure for NetBSD/alpha targets using the struct offsets
|
||||
defined in <link.h> (but without actual reference to that file).
|
||||
|
||||
This makes it possible to access NetBSD/alpha shared libraries
|
||||
from a GDB that was not built on a NetBSD/alpha host (for cross
|
||||
debugging). */
|
||||
|
||||
static struct link_map_offsets *
|
||||
alphanbsd_solib_svr4_fetch_link_map_offsets (void)
|
||||
{
|
||||
static struct link_map_offsets lmo;
|
||||
static struct link_map_offsets *lmp = NULL;
|
||||
|
||||
if (lmp == NULL)
|
||||
{
|
||||
lmp = &lmo;
|
||||
|
||||
lmo.r_debug_size = 32;
|
||||
|
||||
lmo.r_map_offset = 8;
|
||||
lmo.r_map_size = 8;
|
||||
|
||||
lmo.link_map_size = 40;
|
||||
|
||||
lmo.l_addr_offset = 0;
|
||||
lmo.l_addr_size = 8;
|
||||
|
||||
lmo.l_name_offset = 8;
|
||||
lmo.l_name_size = 8;
|
||||
|
||||
lmo.l_next_offset = 24;
|
||||
lmo.l_next_size = 8;
|
||||
|
||||
lmo.l_prev_offset = 32;
|
||||
lmo.l_prev_size = 8;
|
||||
}
|
||||
|
||||
return lmp;
|
||||
}
|
||||
|
||||
/* Under NetBSD/alpha, signal handler invocations can be identified by the
|
||||
designated code sequence that is used to return from a signal handler.
|
||||
In particular, the return address of a signal handler points to the
|
||||
following code sequence:
|
||||
|
||||
ldq a0, 0(sp)
|
||||
lda sp, 16(sp)
|
||||
lda v0, 295(zero) # __sigreturn14
|
||||
call_pal callsys
|
||||
|
||||
Each instruction has a unique encoding, so we simply attempt to match
|
||||
the instruction the PC is pointing to with any of the above instructions.
|
||||
If there is a hit, we know the offset to the start of the designated
|
||||
sequence and can then check whether we really are executing in the
|
||||
signal trampoline. If not, -1 is returned, otherwise the offset from the
|
||||
start of the return sequence is returned. */
|
||||
static const unsigned int sigtramp_retcode[] =
|
||||
{
|
||||
0xa61e0000, /* ldq a0, 0(sp) */
|
||||
0x23de0010, /* lda sp, 16(sp) */
|
||||
0x201f0127, /* lda v0, 295(zero) */
|
||||
0x00000083, /* call_pal callsys */
|
||||
};
|
||||
#define RETCODE_NWORDS \
|
||||
(sizeof (sigtramp_retcode) / sizeof (sigtramp_retcode[0]))
|
||||
|
||||
LONGEST
|
||||
alphanbsd_sigtramp_offset (CORE_ADDR pc)
|
||||
{
|
||||
unsigned int ret[4], w;
|
||||
LONGEST off;
|
||||
int i;
|
||||
|
||||
if (read_memory_nobpt (pc, (char *) &w, 4) != 0)
|
||||
return -1;
|
||||
|
||||
for (i = 0; i < RETCODE_NWORDS; i++)
|
||||
{
|
||||
if (w == sigtramp_retcode[i])
|
||||
break;
|
||||
}
|
||||
if (i == RETCODE_NWORDS)
|
||||
return (-1);
|
||||
|
||||
off = i * 4;
|
||||
pc -= off;
|
||||
|
||||
if (read_memory_nobpt (pc, (char *) ret, sizeof (ret)) != 0)
|
||||
return -1;
|
||||
|
||||
if (memcmp (ret, sigtramp_retcode, sizeof (sigtramp_retcode)) == 0)
|
||||
return off;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void
|
||||
alphanbsd_init_abi (struct gdbarch_info info,
|
||||
struct gdbarch *gdbarch)
|
||||
{
|
||||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||||
|
||||
/* NetBSD/alpha does not provide single step support via ptrace(2); we
|
||||
must use software single-stepping. */
|
||||
set_gdbarch_software_single_step (gdbarch, alpha_software_single_step);
|
||||
|
||||
set_solib_svr4_fetch_link_map_offsets (gdbarch,
|
||||
alphanbsd_solib_svr4_fetch_link_map_offsets);
|
||||
|
||||
tdep->dynamic_sigtramp_offset = alphanbsd_sigtramp_offset;
|
||||
}
|
||||
|
||||
void
|
||||
_initialize_alphanbsd_tdep (void)
|
||||
{
|
||||
alpha_gdbarch_register_os_abi (ALPHA_ABI_NETBSD, alphanbsd_init_abi);
|
||||
}
|
||||
4
gdb/config/alpha/nbsd.mh
Normal file
4
gdb/config/alpha/nbsd.mh
Normal file
@ -0,0 +1,4 @@
|
||||
# Host: Alpha running NetBSD
|
||||
NAT_CLIBS=
|
||||
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o alphabsd-nat.o alphanbsd-nat.o solib-legacy.o
|
||||
NAT_FILE= nm-nbsd.h
|
||||
3
gdb/config/alpha/nbsd.mt
Normal file
3
gdb/config/alpha/nbsd.mt
Normal file
@ -0,0 +1,3 @@
|
||||
# Target: Alpha running NetBSD
|
||||
TDEPFILES= alpha-tdep.o alphanbsd-tdep.o solib.o solib-svr4.o
|
||||
TM_FILE= tm-nbsd.h
|
||||
36
gdb/config/alpha/nm-nbsd.h
Normal file
36
gdb/config/alpha/nm-nbsd.h
Normal file
@ -0,0 +1,36 @@
|
||||
/* Native-dependent definitions for Alpha running NetBSD, for GDB.
|
||||
Copyright 2002 Free Software Foundation, Inc.
|
||||
Contributed by Wasabi Systems, 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 NM_NBSD_H
|
||||
#define NM_NBSD_H
|
||||
|
||||
#define SVR4_SHARED_LIBS
|
||||
|
||||
/* Get generic NetBSD native definitions. */
|
||||
#include "config/nm-nbsd.h"
|
||||
|
||||
/* The Alpha does not step over a breakpoint. */
|
||||
#define CANNOT_STEP_BREAKPOINT
|
||||
|
||||
/* NetBSD/alpha has shared libraries. */
|
||||
#define GDB_TARGET_HAS_SHARED_LIBS
|
||||
|
||||
#endif /* NM_NBSD_H */
|
||||
32
gdb/config/alpha/tm-nbsd.h
Normal file
32
gdb/config/alpha/tm-nbsd.h
Normal file
@ -0,0 +1,32 @@
|
||||
/* Target-dependent definitions for NetBSD/Alpha.
|
||||
Copyright 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 TM_NBSD_H
|
||||
#define TM_NBSD_H
|
||||
|
||||
#include "alpha/tm-alpha.h"
|
||||
|
||||
/* Number of traps that happen between exec'ing the shell to run an
|
||||
inferior, and when we finally get to the inferior code. The
|
||||
default is right for NetBSD. */
|
||||
|
||||
#undef START_INFERIOR_TRAPS_EXPECTED
|
||||
|
||||
#endif /* TM_NBSD_H */
|
||||
@ -34,6 +34,7 @@ alpha*-*-osf2*) gdb_host=alpha-osf2 ;;
|
||||
alpha*-*-osf[3456789]*) gdb_host=alpha-osf3 ;;
|
||||
alpha*-*-linux*) gdb_host=alpha-linux ;;
|
||||
alpha*-*-freebsd*) gdb_host=fbsd ;;
|
||||
alpha*-*-netbsd*) gdb_host=nbsd ;;
|
||||
|
||||
arm*-*-linux*) gdb_host=linux ;;
|
||||
arm*-*-netbsd*) gdb_host=nbsd ;;
|
||||
|
||||
@ -48,6 +48,7 @@ case "${target}" in
|
||||
alpha*-*-osf*) gdb_target=alpha-osf1 ;;
|
||||
alpha*-*-linux*) gdb_target=alpha-linux ;;
|
||||
alpha*-*-freebsd*) gdb_target=fbsd ;;
|
||||
alpha*-*-netbsd*) gdb_target=nbsd ;;
|
||||
|
||||
arc-*-*) gdb_target=arc ;;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user