2008-11-14 Daniel Gutson <dgutson@codesourcery.com>
* configure.tgt (sparc64-*-linux*): Added gdbserver support. * regformats/reg-sparc64.dat: New file. gdbserver/ 2008-11-14 Daniel Gutson <dgutson@codesourcery.com> * Makefile.in (SFILES, clean): Added sparc64 files. (reg-sparc64.o, reg-sparc64.c): New. * configure.srv (sparc*-*-linux*): New configuration. * linux-low.c (regsets_fetch_inferior_registers): Swap ptrace syscall arguments for SPARC. (regsets_store_inferior_registers): Likewise. * linux-sparc-low.c: New file.
This commit is contained in:
Daniel Jacobowitz
parent
28b027518b
commit
dfb64f85d3
8 changed files with 418 additions and 3 deletions
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@ -1,3 +1,8 @@
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2008-11-14 Daniel Gutson <dgutson@codesourcery.com>
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* configure.tgt (sparc64-*-linux*): Added gdbserver support.
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* regformats/reg-sparc64.dat: New file.
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2008-11-14 Tom Tromey <tromey@redhat.com>
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PR mi/2549:
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@ -411,6 +411,7 @@ sparc64-*-linux*)
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gdb_target_obs="sparc64-tdep.o sparc64-sol2-tdep.o sol2-tdep.o \
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sparc64-linux-tdep.o sparc-tdep.o sparc-sol2-tdep.o \
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sparc-linux-tdep.o solib.o solib-svr4.o"
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build_gdbserver=yes
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;;
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sparc*-*-freebsd* | sparc*-*-kfreebsd*-gnu)
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# Target: FreeBSD/sparc64
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@ -1,3 +1,13 @@
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2008-11-14 Daniel Gutson <dgutson@codesourcery.com>
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* Makefile.in (SFILES, clean): Added sparc64 files.
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(reg-sparc64.o, reg-sparc64.c): New.
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* configure.srv (sparc*-*-linux*): New configuration.
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* linux-low.c (regsets_fetch_inferior_registers): Swap ptrace
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syscall arguments for SPARC.
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(regsets_store_inferior_registers): Likewise.
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* linux-sparc-low.c: New file.
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2008-10-21 Doug Evans <dje@google.com>
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* Makefile.in (BFD_DIR,BFD,BFD_SRC,BFD_CFLAGS): Delete.
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@ -117,7 +117,8 @@ SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c \
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$(srcdir)/linux-m68k-low.c $(srcdir)/linux-mips-low.c \
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$(srcdir)/linux-ppc-low.c \
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$(srcdir)/linux-s390-low.c \
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$(srcdir)/linux-sh-low.c $(srcdir)/linux-x86-64-low.c \
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$(srcdir)/linux-sh-low.c $(srcdir)/linux-sparc-low.c \
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$(srcdir)/linux-x86-64-low.c \
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$(srcdir)/linux-xtensa-low.c \
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$(srcdir)/win32-arm-low.c $(srcdir)/win32-i386-low.c \
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$(srcdir)/win32-low.c $(srcdir)/wincecompat.c \
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@ -209,7 +210,7 @@ clean:
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rm -f version.c
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rm -f gdbserver$(EXEEXT) gdbreplay$(EXEEXT) core make.log
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rm -f reg-arm.c reg-i386.c reg-ia64.c reg-m32r.c reg-m68k.c
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rm -f reg-sh.c reg-spu.c reg-x86-64.c reg-i386-linux.c
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rm -f reg-sh.c reg-sparc.c reg-spu.c reg-x86-64.c reg-i386-linux.c
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rm -f reg-cris.c reg-crisv32.c reg-x86-64-linux.c reg-xtensa.c
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rm -f arm-with-iwmmxt.c mips-linux.c mips64-linux.c
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rm -f powerpc-32l.c powerpc-64l.c powerpc-e500l.c
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@ -382,6 +383,9 @@ reg-s390x.c : $(srcdir)/../regformats/reg-s390x.dat $(regdat_sh)
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reg-sh.o : reg-sh.c $(regdef_h)
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reg-sh.c : $(srcdir)/../regformats/reg-sh.dat $(regdat_sh)
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$(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-sh.dat reg-sh.c
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reg-sparc64.o : reg-sparc64.c $(regdef_h)
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reg-sparc64.c : $(srcdir)/../regformats/reg-sparc64.dat $(regdat_sh)
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$(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-sparc64.dat reg-sparc64.c
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reg-spu.o : reg-spu.c $(regdef_h)
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reg-spu.c : $(srcdir)/../regformats/reg-spu.dat $(regdat_sh)
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$(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-spu.dat reg-spu.c
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@ -139,6 +139,11 @@ case "${target}" in
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srv_linux_regsets=yes
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srv_linux_thread_db=yes
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;;
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sparc*-*-linux*) srv_regobj=reg-sparc64.o
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srv_tgtobj="linux-low.o linux-sparc-low.o"
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srv_linux_regsets=yes
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srv_linux_thread_db=yes
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;;
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spu*-*-*) srv_regobj=reg-spu.o
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srv_tgtobj="spu-low.o"
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;;
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@ -1523,7 +1523,11 @@ regsets_fetch_inferior_registers ()
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}
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buf = malloc (regset->size);
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#ifndef __sparc__
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res = ptrace (regset->get_request, inferior_pid, 0, buf);
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#else
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res = ptrace (regset->get_request, inferior_pid, buf, 0);
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#endif
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if (res < 0)
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{
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if (errno == EIO)
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@ -1576,7 +1580,11 @@ regsets_store_inferior_registers ()
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/* First fill the buffer with the current register set contents,
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in case there are any items in the kernel's regset that are
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not in gdbserver's regcache. */
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#ifndef __sparc__
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res = ptrace (regset->get_request, inferior_pid, 0, buf);
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#else
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res = ptrace (regset->get_request, inferior_pid, buf, 0);
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#endif
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if (res == 0)
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{
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@ -1584,7 +1592,11 @@ regsets_store_inferior_registers ()
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regset->fill_function (buf);
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/* Only now do we write the register set. */
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res = ptrace (regset->set_request, inferior_pid, 0, buf);
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#ifndef __sparc__
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res = ptrace (regset->set_request, inferior_pid, 0, buf);
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#else
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res = ptrace (regset->set_request, inferior_pid, buf, 0);
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#endif
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}
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if (res < 0)
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287
gdb/gdbserver/linux-sparc-low.c
Normal file
287
gdb/gdbserver/linux-sparc-low.c
Normal file
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@ -0,0 +1,287 @@
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/* Low level interface to ptrace, for the remote server for GDB.
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Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2006, 2007, 2008 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 "server.h"
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#include "linux-low.h"
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#include <sys/ptrace.h>
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#include "gdb_proc_service.h"
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/* The stack pointer is offset from the stack frame by a BIAS of 2047
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(0x7ff) for 64-bit code. BIAS is likely to be defined on SPARC
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hosts, so undefine it first. */
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#undef BIAS
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#define BIAS 2047
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#ifdef HAVE_SYS_REG_H
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#include <sys/reg.h>
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#endif
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#define INSN_SIZE 4
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#define SPARC_R_REGS_NUM 32
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#define SPARC_F_REGS_NUM 48
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#define SPARC_CONTROL_REGS_NUM 6
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#define sparc_num_regs (SPARC_R_REGS_NUM + SPARC_F_REGS_NUM + SPARC_CONTROL_REGS_NUM)
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/* Each offset is multiplied by 8, because of the register size.
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These offsets apply to the buffer sent/filled by ptrace.
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Additionally, the array elements order corresponds to the .dat file, and the
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gdb's registers enumeration order. */
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static int sparc_regmap[] = {
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/* These offsets correspond to GET/SETREGSET. */
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-1, 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, /* g0 .. g7 */
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7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, /* o0 .. o5, sp, o7 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* l0 .. l7 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* i0 .. i5, fp, i7 */
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/* Floating point registers offsets correspond to GET/SETFPREGSET. */
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0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4, /* f0 .. f7 */
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8*4, 9*4, 10*4, 11*4, 12*4, 13*4, 14*4, 15*4, /* f8 .. f15 */
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16*4, 17*4, 18*4, 19*4, 20*4, 21*4, 22*4, 23*4, /* f16 .. f23 */
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24*4, 25*4, 26*4, 27*4, 28*4, 29*4, 30*4, 31*4, /* f24 .. f31 */
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/* F32 offset starts next to f31: 31*4+4 = 16 * 8. */
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16*8, 17*8, 18*8, 19*8, 20*8, 21*8, 22*8, 23*8, /* f32 .. f46 */
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24*8, 25*8, 26*8, 27*8, 28*8, 29*8, 30*8, 31*8, /* f48 .. f62 */
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17 *8, /* pc */
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18 *8, /* npc */
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16 *8, /* state */
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/* FSR offset also corresponds to GET/SETFPREGSET, ans is placed next to f62. */
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32 *8, /* fsr */
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-1, /* fprs */
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/* Y register is 32-bits length, but gdb takes care of that. */
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19 *8, /* y */
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};
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struct regs_range_t
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{
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int regno_start;
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int regno_end;
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};
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static const struct regs_range_t gregs_ranges[] = {
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{ 0, 31 }, /* g0 .. i7 */
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{ 80, 82 }, /* pc .. state */
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{ 84, 85 } /* fprs .. y */
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};
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#define N_GREGS_RANGES (sizeof (gregs_ranges) / sizeof (struct regs_range_t))
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static const struct regs_range_t fpregs_ranges[] = {
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{ 32, 79 }, /* f0 .. f62 */
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{ 83, 83 } /* fsr */
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};
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#define N_FPREGS_RANGES (sizeof (fpregs_ranges) / sizeof (struct regs_range_t))
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/* Defined in auto-generated file reg-sparc64.c. */
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void init_registers_sparc64 (void);
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static int
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sparc_cannot_store_register (int regno)
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{
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return (regno >= sparc_num_regs || sparc_regmap[regno] == -1);
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}
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static int
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sparc_cannot_fetch_register (int regno)
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{
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return (regno >= sparc_num_regs || sparc_regmap[regno] == -1);
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}
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static void
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sparc_fill_gregset_to_stack (const void *buf)
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{
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int i;
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CORE_ADDR addr = 0;
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unsigned char tmp_reg_buf[8];
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const int l0_regno = find_regno("l0");
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const int i7_regno = l0_regno + 15;
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/* These registers have to be stored in the stack. */
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memcpy(&addr, ((char *) buf) + sparc_regmap[find_regno("sp")], sizeof(addr));
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addr += BIAS;
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for (i = l0_regno; i <= i7_regno; i++)
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{
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collect_register (i, tmp_reg_buf);
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(*the_target->write_memory) (addr, tmp_reg_buf, sizeof(tmp_reg_buf));
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addr += sizeof(tmp_reg_buf);
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}
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}
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static void
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sparc_fill_gregset (void *buf)
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{
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int i;
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int range;
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for (range = 0; range < N_GREGS_RANGES; range++)
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for (i = gregs_ranges[range].regno_start; i <= gregs_ranges[range].regno_end; i++)
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if (sparc_regmap[i] != -1)
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collect_register (i, ((char *) buf) + sparc_regmap[i]);
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sparc_fill_gregset_to_stack (buf);
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}
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static void
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sparc_fill_fpregset (void *buf)
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{
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int i;
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int range;
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for (range = 0; range < N_FPREGS_RANGES; range++)
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for (i = fpregs_ranges[range].regno_start; i <= fpregs_ranges[range].regno_end; i++)
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collect_register (i, ((char *) buf) + sparc_regmap[i]);
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}
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static void
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sparc_store_gregset_from_stack (const void *buf)
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{
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int i;
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CORE_ADDR addr = 0;
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unsigned char tmp_reg_buf[8];
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const int l0_regno = find_regno("l0");
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const int i7_regno = l0_regno + 15;
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/* These registers have to be obtained from the stack. */
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memcpy(&addr, ((char *) buf) + sparc_regmap[find_regno("sp")], sizeof(addr));
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addr += BIAS;
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for (i = l0_regno; i <= i7_regno; i++)
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{
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(*the_target->read_memory) (addr, tmp_reg_buf, sizeof(tmp_reg_buf));
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supply_register (i, tmp_reg_buf);
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addr += sizeof(tmp_reg_buf);
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}
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}
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static void
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sparc_store_gregset (const void *buf)
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{
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int i;
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char zerobuf[8];
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int range;
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memset (zerobuf, 0, sizeof(zerobuf));
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for (range = 0; range < N_GREGS_RANGES; range++)
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for (i = gregs_ranges[range].regno_start; i <= gregs_ranges[range].regno_end; i++)
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if (sparc_regmap[i] != -1)
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supply_register (i, ((char *) buf) + sparc_regmap[i]);
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else
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supply_register (i, zerobuf);
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sparc_store_gregset_from_stack (buf);
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}
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static void
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sparc_store_fpregset (const void *buf)
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{
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int i;
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int range;
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|
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for (range = 0; range < N_FPREGS_RANGES; range++)
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for (i = fpregs_ranges[range].regno_start; i <= fpregs_ranges[range].regno_end; i++)
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supply_register (i, ((char *) buf) + sparc_regmap[i]);
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}
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extern int debug_threads;
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static CORE_ADDR
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sparc_get_pc ()
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{
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CORE_ADDR pc;
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collect_register_by_name ("pc", &pc);
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if (debug_threads)
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fprintf (stderr, "stop pc is %08lx\n", pc);
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return pc;
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}
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static const unsigned char sparc_breakpoint[INSN_SIZE] = { 0x91, 0xd0, 0x20, 0x01 };
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#define sparc_breakpoint_len INSN_SIZE
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static int
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sparc_breakpoint_at (CORE_ADDR where)
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{
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unsigned char insn[INSN_SIZE];
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(*the_target->read_memory) (where, (unsigned char *) insn, sizeof(insn));
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if (memcmp(sparc_breakpoint, insn, sizeof(insn)) == 0)
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return 1;
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/* If necessary, recognize more trap instructions here. GDB only uses TRAP Always. */
|
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return 0;
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}
|
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|
||||
/* We only place breakpoints in empty marker functions, and thread locking
|
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is outside of the function. So rather than importing software single-step,
|
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we can just run until exit. */
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static CORE_ADDR
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sparc_reinsert_addr ()
|
||||
{
|
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CORE_ADDR lr;
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||||
/* O7 is the equivalent to the 'lr' of other archs. */
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collect_register_by_name ("o7", &lr);
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return lr;
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||||
}
|
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|
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|
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struct regset_info target_regsets[] = {
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{ PTRACE_GETREGS, PTRACE_SETREGS, sizeof (elf_gregset_t),
|
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GENERAL_REGS,
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sparc_fill_gregset, sparc_store_gregset },
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{ PTRACE_GETFPREGS, PTRACE_SETFPREGS, sizeof (fpregset_t),
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FP_REGS,
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sparc_fill_fpregset, sparc_store_fpregset },
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{ 0, 0, -1, -1, NULL, NULL }
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};
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|
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struct linux_target_ops the_low_target = {
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init_registers_sparc64,
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sparc_num_regs,
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/* No regmap needs to be provided since this impl. doesn't use USRREGS. */
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NULL,
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sparc_cannot_fetch_register,
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sparc_cannot_store_register,
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sparc_get_pc,
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/* No sparc_set_pc is needed. */
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NULL,
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(const unsigned char *) sparc_breakpoint,
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sparc_breakpoint_len,
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sparc_reinsert_addr,
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0,
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sparc_breakpoint_at,
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NULL, NULL, NULL, NULL,
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NULL, NULL
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};
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91
gdb/regformats/reg-sparc64.dat
Normal file
91
gdb/regformats/reg-sparc64.dat
Normal file
|
|
@ -0,0 +1,91 @@
|
|||
name:sparc64
|
||||
expedite:sp,fp,pc,npc,o7
|
||||
64:g0
|
||||
64:g1
|
||||
64:g2
|
||||
64:g3
|
||||
64:g4
|
||||
64:g5
|
||||
64:g6
|
||||
64:g7
|
||||
64:o0
|
||||
64:o1
|
||||
64:o2
|
||||
64:o3
|
||||
64:o4
|
||||
64:o5
|
||||
64:sp
|
||||
64:o7
|
||||
64:l0
|
||||
64:l1
|
||||
64:l2
|
||||
64:l3
|
||||
64:l4
|
||||
64:l5
|
||||
64:l6
|
||||
64:l7
|
||||
64:i0
|
||||
64:i1
|
||||
64:i2
|
||||
64:i3
|
||||
64:i4
|
||||
64:i5
|
||||
64:fp
|
||||
64:i7
|
||||
|
||||
32:f0
|
||||
32:f1
|
||||
32:f2
|
||||
32:f3
|
||||
32:f4
|
||||
32:f5
|
||||
32:f6
|
||||
32:f7
|
||||
32:f8
|
||||
32:f9
|
||||
32:f10
|
||||
32:f11
|
||||
32:f12
|
||||
32:f13
|
||||
32:f14
|
||||
32:f15
|
||||
32:f16
|
||||
32:f17
|
||||
32:f18
|
||||
32:f19
|
||||
32:f20
|
||||
32:f21
|
||||
32:f22
|
||||
32:f23
|
||||
32:f24
|
||||
32:f25
|
||||
32:f26
|
||||
32:f27
|
||||
32:f28
|
||||
32:f29
|
||||
32:f30
|
||||
32:f31
|
||||
|
||||
64:f32
|
||||
64:f34
|
||||
64:f36
|
||||
64:f38
|
||||
64:f40
|
||||
64:f42
|
||||
64:f44
|
||||
64:f46
|
||||
64:f48
|
||||
64:f50
|
||||
64:f52
|
||||
64:f54
|
||||
64:f56
|
||||
64:f58
|
||||
64:f60
|
||||
64:f62
|
||||
|
||||
64:pc
|
||||
64:npc
|
||||
64:state
|
||||
64:fsr
|
||||
64:fprs
|
||||
64:y
|
||||
Loading…
Add table
Add a link
Reference in a new issue