2012-05-30 Jeff Kenton <jkenton@tilera.com>
* configure.host (gdb_host_cpu): Handle tilegx*. (gdb_host): Handle tilegx-*-linux*. * tilegx-linux-nat.c: New file. * config/tilegx/linux.mh: New file.
This commit is contained in:
Pedro Alves
parent
ade64f0e04
commit
65662cdeab
4 changed files with 209 additions and 0 deletions
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@ -1,3 +1,10 @@
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2012-05-30 Jeff Kenton <jkenton@tilera.com>
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* configure.host (gdb_host_cpu): Handle tilegx*.
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(gdb_host): Handle tilegx-*-linux*.
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* tilegx-linux-nat.c: New file.
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* config/tilegx/linux.mh: New file.
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2012-05-30 Jeff Kenton <jkenton@tilera.com>
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* Makefile.in (ALL_TARGET_OBJS): Add tilegx-tdep.o and
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12
gdb/config/tilegx/linux.mh
Normal file
12
gdb/config/tilegx/linux.mh
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@ -0,0 +1,12 @@
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# Host: Tilera TILE-Gx running GNU/Linux.
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NAT_FILE= config/nm-linux.h
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NATDEPFILES= inf-ptrace.o fork-child.o \
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tilegx-linux-nat.o \
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proc-service.o linux-thread-db.o \
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linux-nat.o linux-osdata.o linux-fork.o \
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linux-procfs.o linux-ptrace.o
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# The dynamically loaded libthread_db needs access to symbols in the
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# gdb executable.
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LOADLIBES = -ldl $(RDYNAMIC)
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@ -50,6 +50,7 @@ powerpc* | rs6000) gdb_host_cpu=powerpc ;;
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sparcv9 | sparc64) gdb_host_cpu=sparc ;;
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s390*) gdb_host_cpu=s390 ;;
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sh*) gdb_host_cpu=sh ;;
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tilegx*) gdb_host_cpu=tilegx ;;
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x86_64*) gdb_host_cpu=i386 ;;
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m32r*) gdb_host_cpu=m32r ;;
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xtensa*) gdb_host_cpu=xtensa ;;
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@ -159,6 +160,8 @@ sparc-*-solaris2* | sparcv9-*-solaris2* | sparc64-*-solaris2*)
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gdb_host=sol2
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;;
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tilegx-*-linux*) gdb_host=linux ;;
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vax-*-bsd*) gdb_host=vax ;;
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vax-*-netbsdelf* | vax-*-knetbsd*-gnu)
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gdb_host=nbsdelf ;;
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187
gdb/tilegx-linux-nat.c
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187
gdb/tilegx-linux-nat.c
Normal file
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@ -0,0 +1,187 @@
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/* Native-dependent code for GNU/Linux TILE-Gx.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "inferior.h"
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#include "gdbcore.h"
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#include "regcache.h"
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#include "linux-nat.h"
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#include <sys/ptrace.h>
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#include "gdb_assert.h"
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#include "gdb_string.h"
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#include <sys/procfs.h>
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#include "gdb_proc_service.h"
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#include <sys/ptrace.h>
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/* Prototypes for supply_gregset etc. */
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#include "gregset.h"
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/* Defines ps_err_e, struct ps_prochandle. */
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#include "gdb_proc_service.h"
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/* The register sets used in GNU/Linux ELF core-dumps are identical to
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the register sets in `struct user' that is used for a.out
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core-dumps, and is also used by `ptrace'. The corresponding types
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are `elf_gregset_t' for the general-purpose registers (with
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`elf_greg_t' the type of a single GP register) and `elf_fpregset_t'
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for the floating-point registers.
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Those types used to be available under the names `gregset_t' and
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`fpregset_t' too, and this file used those names in the past. But
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those names are now used for the register sets used in the
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`mcontext_t' type, and have a different size and layout. */
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/* Mapping between the general-purpose registers in `struct user'
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format and GDB's register array layout. Note that we map the
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first 56 registers (0 thru 55) one-to-one. GDB maps the pc to
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slot 64, but ptrace returns it in slot 56. */
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static const int regmap[] =
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{
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0, 1, 2, 3, 4, 5, 6, 7,
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8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55,
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-1, -1, -1, -1, -1, -1, -1, -1,
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56
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};
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/* Transfering the general-purpose registers between GDB, inferiors
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and core files. */
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/* Fill GDB's register array with the general-purpose register values
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in *GREGSETP. */
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void
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supply_gregset (struct regcache* regcache,
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const elf_gregset_t *gregsetp)
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{
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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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int i;
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for (i = 0; i < sizeof (regmap) / sizeof (regmap[0]); i++)
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if (regmap[i] >= 0)
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regcache_raw_supply (regcache, i, regp + regmap[i]);
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}
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/* Fill registers in *GREGSETPS with the values in GDB's
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register array. */
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void
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fill_gregset (const struct regcache* regcache,
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elf_gregset_t *gregsetp, int regno)
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{
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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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int i;
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for (i = 0; i < sizeof (regmap) / sizeof (regmap[0]); i++)
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if (regmap[i] >= 0)
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regcache_raw_collect (regcache, i, regp + regmap[i]);
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}
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/* Transfering floating-point registers between GDB, inferiors and cores. */
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/* Fill GDB's register array with the floating-point register values in
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*FPREGSETP. */
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void
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supply_fpregset (struct regcache *regcache,
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const elf_fpregset_t *fpregsetp)
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{
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/* NOTE: There are no floating-point registers for TILE-Gx. */
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}
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/* Fill register REGNO (if it is a floating-point register) in
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*FPREGSETP with the value in GDB's register array. If REGNO is -1,
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do this for all registers. */
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void
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fill_fpregset (const struct regcache *regcache,
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elf_fpregset_t *fpregsetp, int regno)
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{
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/* NOTE: There are no floating-point registers for TILE-Gx. */
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}
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/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
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for all registers. */
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static void
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fetch_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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elf_gregset_t regs;
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int tid;
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tid = ptid_get_lwp (inferior_ptid);
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if (tid == 0)
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tid = ptid_get_pid (inferior_ptid);
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if (ptrace (PTRACE_GETREGS, tid, 0, (PTRACE_TYPE_ARG3) ®s) < 0)
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perror_with_name (_("Couldn't get registers"));
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supply_gregset (regcache, (const elf_gregset_t *)®s);
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}
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/* Store register REGNUM back into the inferior. If REGNUM is -1, do
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this for all registers. */
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static void
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store_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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elf_gregset_t regs;
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int tid;
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tid = ptid_get_lwp (inferior_ptid);
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if (tid == 0)
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tid = ptid_get_pid (inferior_ptid);
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if (ptrace (PTRACE_GETREGS, tid, 0, (PTRACE_TYPE_ARG3) ®s) < 0)
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perror_with_name (_("Couldn't get registers"));
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fill_gregset (regcache, ®s, regnum);
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if (ptrace (PTRACE_SETREGS, tid, 0, (PTRACE_TYPE_ARG3) ®s) < 0)
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perror_with_name (_("Couldn't write registers"));
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}
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extern initialize_file_ftype _initialize_tile_linux_nat;
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void
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_initialize_tile_linux_nat (void)
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{
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struct target_ops *t;
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/* Fill in the generic GNU/Linux methods. */
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t = linux_target ();
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/* Add our register access methods. */
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t->to_fetch_registers = fetch_inferior_registers;
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t->to_store_registers = store_inferior_registers;
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/* Register the target. */
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linux_nat_add_target (t);
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}
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