mirror of
https://sourceware.org/git/binutils-gdb.git
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03b62bbbce
Most tdep/nat files are named: <cpu>-<os>-tdep.c <cpu>-<os>-nat.c A few files do not respect this scheme. This patch renames them so that they are consistent with the rest of the files. It builds fine with --enable-targets=all, but that doesn't test the nat files. I can only hope that my grep skill is good enough. gdb/ChangeLog: * Makefile.in (ALL_64_TARGET_OBS, ALL_TARGET_OBS, HFILES_NO_SRCDIR, ALLDEPFILES): Rename files. * alphabsd-nat.c: Rename to ... * alpha-bsd-nat.c: ... this, adjust include. * alphabsd-tdep.c: Rename to ... * alpha-bsd-tdep.c: ... this, adjust include. * alphabsd-tdep.h: Rename to ... * alpha-bsd-tdep.h: ... this, adjust include barrier and comment. * alphafbsd-tdep.c: Rename to ... * alpha-fbsd-tdep.c: ... this. * alphanbsd-tdep.c: Rename to ... * alpha-nbsd-tdep.c: ... this, adjust include. * alphaobsd-tdep.c: Rename to ... * alpha-obsd-tdep.c: ... this, adjust include. * amd64bsd-nat.c: Rename to ... * amd64-bsd-nat.c: ... this, adjust include. * amd64fbsd-nat.c: Rename to ... * amd64-fbsd-nat.c: ... this, adjust include. * amd64fbsd-tdep.c: Rename to ... * amd64-fbsd-tdep.c: ... this, adjust include. * amd64nbsd-nat.c: Rename to ... * amd64-nbsd-nat.c: ... this. * amd64nbsd-tdep.c: Rename to ... * amd64-nbsd-tdep.c: ... this. * amd64obsd-nat.c: Rename to ... * amd64-obsd-nat.c: ... this. * amd64obsd-tdep.c: Rename to ... * amd64-obsd-tdep.c: ... this. * amd64-tdep.h: Update comments. * armbsd-tdep.c: Rename to ... * arm-bsd-tdep.c: ... this. * armnbsd-nat.c: Rename to ... * arm-nbsd-nat.c: ... this. * armnbsd-tdep.c: Rename to ... * arm-nbsd-tdep.c: ... this. * armobsd-tdep.c: Rename to ... * arm-obsd-tdep.c: ... this. * arm-tdep.h: Update comments. * hppabsd-tdep.c: Rename to ... * hppa-bsd-tdep.c: ... this, adjust include. * hppabsd-tdep.h: Rename to ... * hppa-bsd-tdep.h: ... this, adjust include barrier and comment. * hppanbsd-nat.c: Rename to ... * hppa-nbsd-nat.c: ... this. * hppanbsd-tdep.c: Rename to ... * hppa-nbsd-tdep.c: ... this, adjust include. * hppaobsd-nat.c: Rename to ... * hppa-obsd-nat.c: ... this. * hppaobsd-tdep.c: Rename to ... * hppa-obsd-tdep.c: ... this, adjust include. * i386bsd-nat.c: Rename to ... * i386-bsd-nat.c: ... this, adjust include. * i386bsd-nat.h: Rename to ... * i386-bsd-nat.h: ... this, adjust include barrier and comment. * i386bsd-tdep.c: Rename to ... * i386-bsd-tdep.c: ... this. * i386fbsd-nat.c: Rename to ... * i386-fbsd-nat.c: ... this, adjust include. * i386fbsd-tdep.c: Rename to ... * i386-fbsd-tdep.c: ... this, adjust include. * i386fbsd-tdep.h: Rename to ... * i386-fbsd-tdep.h: ... this, adjust include barrier and comment. * i386gnu-nat.c: Rename to ... * i386-gnu-nat.c: ... this. * i386gnu-tdep.c: Rename to ... * i386-gnu-tdep.c: ... this. * i386nbsd-nat.c: Rename to ... * i386-nbsd-nat.c: ... this, adjust include. * i386nbsd-tdep.c: Rename to ... * i386-nbsd-tdep.c: ... this. * i386obsd-nat.c: Rename to ... * i386-obsd-nat.c: ... this, adjust include. * i386obsd-tdep.c: Rename to ... * i386-obsd-tdep.c: ... this. * i386v4-nat.c: Rename to ... * i386-v4-nat.c: ... this. * i386-tdep.h: Update comments. * m68k-tdep.h: Update comments. * m68kbsd-nat.c: Rename to ... * m68k-bsd-nat.c: ... this. * m68kbsd-tdep.c: Rename to ... * m68k-bsd-tdep.c: ... this. * m68klinux-nat.c: Rename to ... * m68k-linux-nat.c: ... this. * m68klinux-tdep.c: Rename to ... * m68k-linux-tdep.c: ... this. * m88kbsd-nat.c: Rename to ... * m88k-bsd-nat.c: ... this. * mipsnbsd-nat.c: Rename to ... * mips-nbsd-nat.c: ... this, adjust include. * mipsnbsd-tdep.c: Rename to ... * mips-nbsd-tdep.c: ... this, adjust include. * mipsnbsd-tdep.h: Rename to ... * mips-nbsd-tdep.h: ... this, adjust include barrier and comment. * mips64obsd-nat.c: Rename to ... * mips64-obsd-nat.c: ... this. * mips64obsd-tdep.c: Rename to ... * mips64-obsd-tdep.c: ... this. * ppcfbsd-nat.c: Rename to ... * ppc-fbsd-nat.c: ... this, adjust include. * ppcfbsd-tdep.c: Rename to ... * ppc-fbsd-tdep.c: ... this, adjust include. * ppcfbsd-tdep.h: Rename to ... * ppc-fbsd-tdep.h: ... this, adjust include barrier and comment. * ppcnbsd-nat.c: Rename to ... * ppc-nbsd-nat.c: ... this, adjust include. * ppcnbsd-tdep.c: Rename to ... * ppc-nbsd-tdep.c: ... this, adjust include. * ppcnbsd-tdep.h: Rename to ... * ppc-nbsd-tdep.h: ... this, adjust include barrier and comment. * ppcobsd-nat.c: Rename to ... * ppc-obsd-nat.c: ... this, adjust include. * ppcobsd-tdep.c: Rename to ... * ppc-obsd-tdep.c: ... this, adjust include. * ppcobsd-tdep.h: Rename to ... * ppc-obsd-tdep.h: ... this, adjust include barrier and comment. * shnbsd-nat.c: Rename to ... * sh-nbsd-nat.c: ... this. * shnbsd-tdep.c: Rename to ... * sh-nbsd-tdep.c: ... this. * sparcnbsd-nat.c: Rename to ... * sparc-nbsd-nat.c: ... this. * sparcnbsd-tdep.c: Rename to ... * sparc-nbsd-tdep.c: ... this. * sparcobsd-tdep.c: Rename to ... * sparc-obsd-tdep.c: ... this. * sparc64fbsd-nat.c: Rename to ... * sparc64-fbsd-nat.c: ... this. * sparc64fbsd-tdep.c: Rename to ... * sparc64-fbsd-tdep.c: ... this. * sparc64nbsd-nat.c: Rename to ... * sparc64-nbsd-nat.c: ... this. * sparc64nbsd-tdep.c: Rename to ... * sparc64-nbsd-tdep.c: ... this. * sparc64obsd-nat.c: Rename to ... * sparc64-obsd-nat.c: ... this. * sparc64obsd-tdep.c: Rename to ... * sparc64-obsd-tdep.c: ... this. * sparc64-tdep.h: Update comments. * vaxbsd-nat.c: Rename to ... * vax-bsd-nat.c: ... this. * vaxnbsd-tdep.c: Rename to ... * vax-nbsd-tdep.c: ... this. * vaxobsd-tdep.c: Rename to ... * vax-obsd-tdep.c: ... this. * x86bsd-nat.h: Rename to ... * x86-bsd-nat.h: ... this, adjust include barrier and comment. * x86bsd-nat.c: Rename to ... * x86-bsd-nat.c: ... this, adjust include. * configure.tgt: Update renamed files. * config/alpha/fbsd.mh: Update renamed files. * config/alpha/nbsd.mh: Update renamed files. * config/arm/nbsdelf.mh: Update renamed files. * config/djgpp/fnchange.lst: Update renamed files. * config/i386/fbsd.mh: Update renamed files. * config/i386/fbsd64.mh: Update renamed files. * config/i386/i386gnu.mh: Update renamed files. * config/i386/i386sol2.mh: Update renamed files. * config/i386/nbsd64.mh: Update renamed files. * config/i386/nbsdelf.mh: Update renamed files. * config/i386/obsd.mh: Update renamed files. * config/i386/obsd64.mh: Update renamed files. * config/i386/sol2-64.mh: Update renamed files. * config/m68k/linux.mh: Update renamed files. * config/m68k/nbsdelf.mh: Update renamed files. * config/m68k/obsd.mh: Update renamed files. * config/m88k/obsd.mh: Update renamed files. * config/mips/nbsd.mh: Update renamed files. * config/mips/obsd64.mh: Update renamed files. * config/pa/nbsd.mh: Update renamed files. * config/pa/obsd.mh: Update renamed files. * config/powerpc/fbsd.mh: Update renamed files. * config/powerpc/nbsd.mh: Update renamed files. * config/powerpc/obsd.mh: Update renamed files. * config/sh/nbsd.mh: Update renamed files. * config/sparc/fbsd.mh: Update renamed files. * config/sparc/nbsd64.mh: Update renamed files. * config/sparc/nbsdelf.mh: Update renamed files. * config/sparc/obsd64.mh: Update renamed files. * config/vax/nbsdelf.mh: Update renamed files. * config/vax/obsd.mh: Update renamed files.
368 lines
10 KiB
C
368 lines
10 KiB
C
/* Native-dependent code for modern i386 BSD's.
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Copyright (C) 2000-2016 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 "regcache.h"
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include <machine/frame.h>
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#include "i386-tdep.h"
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#include "i387-tdep.h"
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#include "x86-bsd-nat.h"
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#include "i386-bsd-nat.h"
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#include "inf-ptrace.h"
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/* In older BSD versions we cannot get at some of the segment
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registers. FreeBSD for example didn't support the %fs and %gs
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registers until the 3.0 release. We have autoconf checks for their
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presence, and deal gracefully with their absence. */
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/* Offset in `struct reg' where MEMBER is stored. */
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#define REG_OFFSET(member) offsetof (struct reg, member)
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/* At i386bsd_reg_offset[REGNUM] you'll find the offset in `struct
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reg' where the GDB register REGNUM is stored. Unsupported
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registers are marked with `-1'. */
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static int i386bsd_r_reg_offset[] =
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{
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REG_OFFSET (r_eax),
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REG_OFFSET (r_ecx),
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REG_OFFSET (r_edx),
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REG_OFFSET (r_ebx),
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REG_OFFSET (r_esp),
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REG_OFFSET (r_ebp),
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REG_OFFSET (r_esi),
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REG_OFFSET (r_edi),
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REG_OFFSET (r_eip),
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REG_OFFSET (r_eflags),
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REG_OFFSET (r_cs),
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REG_OFFSET (r_ss),
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REG_OFFSET (r_ds),
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REG_OFFSET (r_es),
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#ifdef HAVE_STRUCT_REG_R_FS
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REG_OFFSET (r_fs),
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#else
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-1,
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#endif
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#ifdef HAVE_STRUCT_REG_R_GS
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REG_OFFSET (r_gs)
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#else
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-1
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#endif
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};
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/* Macro to determine if a register is fetched with PT_GETREGS. */
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#define GETREGS_SUPPLIES(regnum) \
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((0 <= (regnum) && (regnum) <= 15))
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#ifdef HAVE_PT_GETXMMREGS
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/* Set to 1 if the kernel supports PT_GETXMMREGS. Initialized to -1
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so that we try PT_GETXMMREGS the first time around. */
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static int have_ptrace_xmmregs = -1;
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#endif
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/* Supply the general-purpose registers in GREGS, to REGCACHE. */
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static void
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i386bsd_supply_gregset (struct regcache *regcache, const void *gregs)
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{
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const char *regs = (const char *) gregs;
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int regnum;
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for (regnum = 0; regnum < ARRAY_SIZE (i386bsd_r_reg_offset); regnum++)
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{
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int offset = i386bsd_r_reg_offset[regnum];
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if (offset != -1)
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regcache_raw_supply (regcache, regnum, regs + offset);
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}
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}
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/* Collect register REGNUM from REGCACHE and store its contents in
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GREGS. If REGNUM is -1, collect and store all appropriate
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registers. */
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static void
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i386bsd_collect_gregset (const struct regcache *regcache,
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void *gregs, int regnum)
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{
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char *regs = (char *) gregs;
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int i;
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for (i = 0; i < ARRAY_SIZE (i386bsd_r_reg_offset); i++)
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{
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if (regnum == -1 || regnum == i)
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{
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int offset = i386bsd_r_reg_offset[i];
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if (offset != -1)
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regcache_raw_collect (regcache, i, regs + offset);
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}
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}
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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 (including the floating point registers). */
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static void
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i386bsd_fetch_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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if (regnum == -1 || GETREGS_SUPPLIES (regnum))
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't get registers"));
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i386bsd_supply_gregset (regcache, ®s);
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if (regnum != -1)
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return;
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}
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if (regnum == -1 || regnum >= I386_ST0_REGNUM)
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{
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struct fpreg fpregs;
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#ifdef HAVE_PT_GETXMMREGS
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char xmmregs[512];
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#endif
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#ifdef PT_GETXSTATE_INFO
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if (x86bsd_xsave_len != 0)
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{
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void *xstateregs;
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xstateregs = alloca (x86bsd_xsave_len);
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if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) xstateregs, 0) == -1)
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perror_with_name (_("Couldn't get extended state status"));
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i387_supply_xsave (regcache, -1, xstateregs);
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return;
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}
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#endif
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#ifdef HAVE_PT_GETXMMREGS
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if (have_ptrace_xmmregs != 0
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&& ptrace(PT_GETXMMREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) xmmregs, 0) == 0)
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{
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have_ptrace_xmmregs = 1;
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i387_supply_fxsave (regcache, -1, xmmregs);
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}
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else
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{
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have_ptrace_xmmregs = 0;
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#endif
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if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name (_("Couldn't get floating point status"));
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i387_supply_fsave (regcache, -1, &fpregs);
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#ifdef HAVE_PT_GETXMMREGS
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}
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#endif
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}
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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 (including the floating point registers). */
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static void
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i386bsd_store_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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if (regnum == -1 || GETREGS_SUPPLIES (regnum))
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't get registers"));
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i386bsd_collect_gregset (regcache, ®s, regnum);
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if (ptrace (PT_SETREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't write registers"));
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if (regnum != -1)
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return;
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}
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if (regnum == -1 || regnum >= I386_ST0_REGNUM)
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{
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struct fpreg fpregs;
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#ifdef HAVE_PT_GETXMMREGS
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char xmmregs[512];
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#endif
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#ifdef PT_GETXSTATE_INFO
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if (x86bsd_xsave_len != 0)
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{
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void *xstateregs;
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xstateregs = alloca (x86bsd_xsave_len);
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if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) xstateregs, 0) == -1)
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perror_with_name (_("Couldn't get extended state status"));
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i387_collect_xsave (regcache, -1, xstateregs, 0);
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if (ptrace (PT_SETXSTATE, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) xstateregs, x86bsd_xsave_len) == -1)
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perror_with_name (_("Couldn't write extended state status"));
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return;
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}
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#endif
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#ifdef HAVE_PT_GETXMMREGS
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if (have_ptrace_xmmregs != 0
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&& ptrace(PT_GETXMMREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) xmmregs, 0) == 0)
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{
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have_ptrace_xmmregs = 1;
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i387_collect_fxsave (regcache, regnum, xmmregs);
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if (ptrace (PT_SETXMMREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) xmmregs, 0) == -1)
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perror_with_name (_("Couldn't write XMM registers"));
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}
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else
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{
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have_ptrace_xmmregs = 0;
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#endif
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if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name (_("Couldn't get floating point status"));
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i387_collect_fsave (regcache, regnum, &fpregs);
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if (ptrace (PT_SETFPREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name (_("Couldn't write floating point status"));
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#ifdef HAVE_PT_GETXMMREGS
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}
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#endif
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}
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}
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/* Create a prototype *BSD/i386 target. The client can override it
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with local methods. */
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struct target_ops *
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i386bsd_target (void)
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{
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struct target_ops *t;
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t = x86bsd_target ();
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t->to_fetch_registers = i386bsd_fetch_inferior_registers;
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t->to_store_registers = i386bsd_store_inferior_registers;
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return t;
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_i386bsd_nat (void);
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void
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_initialize_i386bsd_nat (void)
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{
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int offset;
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/* To support the recognition of signal handlers, i386-bsd-tdep.c
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hardcodes some constants. Inclusion of this file means that we
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are compiling a native debugger, which means that we can use the
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system header files and sysctl(3) to get at the relevant
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information. */
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#if defined (__FreeBSD_version) && __FreeBSD_version >= 400011
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#define SC_REG_OFFSET i386fbsd4_sc_reg_offset
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#elif defined (__FreeBSD_version) && __FreeBSD_version >= 300005
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#define SC_REG_OFFSET i386fbsd_sc_reg_offset
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#elif defined (NetBSD) || defined (__NetBSD_Version__)
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#define SC_REG_OFFSET i386nbsd_sc_reg_offset
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#elif defined (OpenBSD)
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#define SC_REG_OFFSET i386obsd_sc_reg_offset
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#endif
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#ifdef SC_REG_OFFSET
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/* We only check the program counter, stack pointer and frame
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pointer since these members of `struct sigcontext' are essential
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for providing backtraces. More checks could be added, but would
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involve adding configure checks for the appropriate structure
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members, since older BSD's don't provide all of them. */
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#define SC_PC_OFFSET SC_REG_OFFSET[I386_EIP_REGNUM]
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||
#define SC_SP_OFFSET SC_REG_OFFSET[I386_ESP_REGNUM]
|
||
#define SC_FP_OFFSET SC_REG_OFFSET[I386_EBP_REGNUM]
|
||
|
||
/* Override the default value for the offset of the program counter
|
||
in the sigcontext structure. */
|
||
offset = offsetof (struct sigcontext, sc_pc);
|
||
|
||
if (SC_PC_OFFSET != offset)
|
||
{
|
||
warning (_("\
|
||
offsetof (struct sigcontext, sc_pc) yields %d instead of %d.\n\
|
||
Please report this to <bug-gdb@gnu.org>."),
|
||
offset, SC_PC_OFFSET);
|
||
}
|
||
|
||
SC_PC_OFFSET = offset;
|
||
|
||
/* Likewise for the stack pointer. */
|
||
offset = offsetof (struct sigcontext, sc_sp);
|
||
|
||
if (SC_SP_OFFSET != offset)
|
||
{
|
||
warning (_("\
|
||
offsetof (struct sigcontext, sc_sp) yields %d instead of %d.\n\
|
||
Please report this to <bug-gdb@gnu.org>."),
|
||
offset, SC_SP_OFFSET);
|
||
}
|
||
|
||
SC_SP_OFFSET = offset;
|
||
|
||
/* And the frame pointer. */
|
||
offset = offsetof (struct sigcontext, sc_fp);
|
||
|
||
if (SC_FP_OFFSET != offset)
|
||
{
|
||
warning (_("\
|
||
offsetof (struct sigcontext, sc_fp) yields %d instead of %d.\n\
|
||
Please report this to <bug-gdb@gnu.org>."),
|
||
offset, SC_FP_OFFSET);
|
||
}
|
||
|
||
SC_FP_OFFSET = offset;
|
||
|
||
#endif /* SC_REG_OFFSET */
|
||
}
|