mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
dccbb60975
This commit includes gdb_assert.h in common-defs.h and removes all other inclusions. gdb/ 2014-08-07 Gary Benson <gbenson@redhat.com> * common/common-defs.h: Include gdb_assert.h. * aarch64-tdep.c: Do not include gdb_assert.h. * addrmap.c: Likewise. * aix-thread.c: Likewise. * alpha-linux-tdep.c: Likewise. * alpha-mdebug-tdep.c: Likewise. * alphanbsd-tdep.c: Likewise. * amd64-nat.c: Likewise. * amd64-tdep.c: Likewise. * amd64bsd-nat.c: Likewise. * amd64fbsd-nat.c: Likewise. * amd64fbsd-tdep.c: Likewise. * amd64nbsd-nat.c: Likewise. * amd64nbsd-tdep.c: Likewise. * amd64obsd-nat.c: Likewise. * amd64obsd-tdep.c: Likewise. * arch-utils.c: Likewise. * arm-tdep.c: Likewise. * armbsd-tdep.c: Likewise. * auxv.c: Likewise. * bcache.c: Likewise. * bfin-tdep.c: Likewise. * blockframe.c: Likewise. * breakpoint.c: Likewise. * bsd-kvm.c: Likewise. * bsd-uthread.c: Likewise. * buildsym.c: Likewise. * c-exp.y: Likewise. * c-lang.c: Likewise. * charset.c: Likewise. * cleanups.c: Likewise. * cli-out.c: Likewise. * cli/cli-decode.c: Likewise. * cli/cli-dump.c: Likewise. * cli/cli-logging.c: Likewise. * cli/cli-script.c: Likewise. * cli/cli-utils.c: Likewise. * coffread.c: Likewise. * common/common-utils.c: Likewise. * common/queue.h: Likewise. * common/signals.c: Likewise. * common/vec.h: Likewise. * complaints.c: Likewise. * completer.c: Likewise. * corelow.c: Likewise. * cp-abi.c: Likewise. * cp-name-parser.y: Likewise. * cp-namespace.c: Likewise. * cp-support.c: Likewise. * cris-tdep.c: Likewise. * dbxread.c: Likewise. * dictionary.c: Likewise. * doublest.c: Likewise. * dsrec.c: Likewise. * dummy-frame.c: Likewise. * dwarf2-frame-tailcall.c: Likewise. * dwarf2-frame.c: Likewise. * dwarf2expr.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * eval.c: Likewise. * event-loop.c: Likewise. * exceptions.c: Likewise. * expprint.c: Likewise. * f-valprint.c: Likewise. * fbsd-nat.c: Likewise. * findvar.c: Likewise. * frame-unwind.c: Likewise. * frame.c: Likewise. * frv-tdep.c: Likewise. * gcore.c: Likewise. * gdb-dlfcn.c: Likewise. * gdb_bfd.c: Likewise. * gdbarch.c: Likewise. * gdbarch.sh: Likewise. * gdbtypes.c: Likewise. * gnu-nat.c: Likewise. * gnu-v3-abi.c: Likewise. * go-lang.c: Likewise. * guile/scm-exception.c: Likewise. * guile/scm-gsmob.c: Likewise. * guile/scm-lazy-string.c: Likewise. * guile/scm-math.c: Likewise. * guile/scm-pretty-print.c: Likewise. * guile/scm-safe-call.c: Likewise. * guile/scm-utils.c: Likewise. * guile/scm-value.c: Likewise. * h8300-tdep.c: Likewise. * hppa-hpux-nat.c: Likewise. * hppa-tdep.c: Likewise. * hppanbsd-tdep.c: Likewise. * hppaobsd-tdep.c: Likewise. * i386-darwin-nat.c: Likewise. * i386-darwin-tdep.c: Likewise. * i386-nto-tdep.c: Likewise. * i386-tdep.c: Likewise. * i386bsd-nat.c: Likewise. * i386fbsd-tdep.c: Likewise. * i386gnu-nat.c: Likewise. * i386nbsd-tdep.c: Likewise. * i386obsd-tdep.c: Likewise. * i387-tdep.c: Likewise. * ia64-libunwind-tdep.c: Likewise. * ia64-tdep.c: Likewise. * inf-ptrace.c: Likewise. * inf-ttrace.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * infrun.c: Likewise. * inline-frame.c: Likewise. * interps.c: Likewise. * jv-lang.c: Likewise. * jv-typeprint.c: Likewise. * linux-fork.c: Likewise. * linux-nat.c: Likewise. * linux-thread-db.c: Likewise. * m32c-tdep.c: Likewise. * m32r-linux-nat.c: Likewise. * m32r-tdep.c: Likewise. * m68k-tdep.c: Likewise. * m68kbsd-nat.c: Likewise. * m68kbsd-tdep.c: Likewise. * m88k-tdep.c: Likewise. * machoread.c: Likewise. * macroexp.c: Likewise. * macrotab.c: Likewise. * maint.c: Likewise. * mdebugread.c: Likewise. * memory-map.c: Likewise. * mep-tdep.c: Likewise. * mi/mi-common.c: Likewise. * microblaze-tdep.c: Likewise. * mingw-hdep.c: Likewise. * mips-linux-nat.c: Likewise. * mips-linux-tdep.c: Likewise. * mips-tdep.c: Likewise. * mips64obsd-tdep.c: Likewise. * mipsnbsd-tdep.c: Likewise. * mn10300-linux-tdep.c: Likewise. * mn10300-tdep.c: Likewise. * moxie-tdep.c: Likewise. * mt-tdep.c: Likewise. * nat/linux-btrace.c: Likewise. * nat/linux-osdata.c: Likewise. * nat/linux-ptrace.c: Likewise. * nat/mips-linux-watch.c: Likewise. * nios2-linux-tdep.c: Likewise. * nios2-tdep.c: Likewise. * objc-lang.c: Likewise. * objfiles.c: Likewise. * obsd-nat.c: Likewise. * opencl-lang.c: Likewise. * osabi.c: Likewise. * parse.c: Likewise. * ppc-linux-nat.c: Likewise. * ppc-sysv-tdep.c: Likewise. * ppcfbsd-nat.c: Likewise. * ppcfbsd-tdep.c: Likewise. * ppcnbsd-nat.c: Likewise. * ppcnbsd-tdep.c: Likewise. * ppcobsd-nat.c: Likewise. * ppcobsd-tdep.c: Likewise. * printcmd.c: Likewise. * procfs.c: Likewise. * prologue-value.c: Likewise. * psymtab.c: Likewise. * python/py-lazy-string.c: Likewise. * python/py-value.c: Likewise. * regcache.c: Likewise. * reggroups.c: Likewise. * registry.c: Likewise. * remote-sim.c: Likewise. * remote.c: Likewise. * rs6000-aix-tdep.c: Likewise. * rs6000-tdep.c: Likewise. * s390-linux-tdep.c: Likewise. * score-tdep.c: Likewise. * ser-base.c: Likewise. * ser-mingw.c: Likewise. * sh-tdep.c: Likewise. * sh64-tdep.c: Likewise. * solib-darwin.c: Likewise. * solib-spu.c: Likewise. * solib-svr4.c: Likewise. * source.c: Likewise. * sparc-nat.c: Likewise. * sparc-sol2-tdep.c: Likewise. * sparc-tdep.c: Likewise. * sparc64-sol2-tdep.c: Likewise. * sparc64-tdep.c: Likewise. * sparc64fbsd-tdep.c: Likewise. * sparc64nbsd-tdep.c: Likewise. * sparc64obsd-tdep.c: Likewise. * sparcnbsd-tdep.c: Likewise. * sparcobsd-tdep.c: Likewise. * spu-multiarch.c: Likewise. * spu-tdep.c: Likewise. * stabsread.c: Likewise. * stack.c: Likewise. * symfile.c: Likewise. * symtab.c: Likewise. * target-descriptions.c: Likewise. * target-memory.c: Likewise. * target.c: Likewise. * tic6x-linux-tdep.c: Likewise. * tic6x-tdep.c: Likewise. * tilegx-linux-nat.c: Likewise. * tilegx-tdep.c: Likewise. * top.c: Likewise. * tramp-frame.c: Likewise. * tui/tui-out.c: Likewise. * tui/tui-winsource.c: Likewise. * ui-out.c: Likewise. * user-regs.c: Likewise. * utils.c: Likewise. * v850-tdep.c: Likewise. * valops.c: Likewise. * value.c: Likewise. * varobj.c: Likewise. * vax-nat.c: Likewise. * xml-syscall.c: Likewise. * xml-tdesc.c: Likewise. * xstormy16-tdep.c: Likewise. * xtensa-linux-nat.c: Likewise. * xtensa-tdep.c: Likewise. gdb/gdbserver/ 2014-08-07 Gary Benson <gbenson@redhat.com> * server.h: Do not include gdb_assert.h.
410 lines
11 KiB
C
410 lines
11 KiB
C
/* Native-dependent code for modern i386 BSD's.
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Copyright (C) 2000-2014 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 "i386bsd-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 = 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 = 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, ptid_get_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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if (have_ptrace_xmmregs != 0
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&& ptrace(PT_GETXMMREGS, ptid_get_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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if (ptrace (PT_GETFPREGS, ptid_get_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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}
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#else
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if (ptrace (PT_GETFPREGS, ptid_get_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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#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, ptid_get_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, ptid_get_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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if (have_ptrace_xmmregs != 0
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&& ptrace(PT_GETXMMREGS, ptid_get_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, ptid_get_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, ptid_get_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, ptid_get_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 = inf_ptrace_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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/* Support for debug registers. */
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#ifdef HAVE_PT_GETDBREGS
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/* Not all versions of FreeBSD/i386 that support the debug registers
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have this macro. */
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#ifndef DBREG_DRX
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#define DBREG_DRX(d, x) ((&d->dr0)[x])
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#endif
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static unsigned long
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i386bsd_dr_get (ptid_t ptid, int regnum)
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{
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struct dbreg dbregs;
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if (ptrace (PT_GETDBREGS, ptid_get_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
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perror_with_name (_("Couldn't read debug registers"));
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return DBREG_DRX ((&dbregs), regnum);
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}
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static void
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i386bsd_dr_set (int regnum, unsigned int value)
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{
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struct dbreg dbregs;
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if (ptrace (PT_GETDBREGS, ptid_get_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
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perror_with_name (_("Couldn't get debug registers"));
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/* For some mysterious reason, some of the reserved bits in the
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debug control register get set. Mask these off, otherwise the
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ptrace call below will fail. */
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DBREG_DRX ((&dbregs), 7) &= ~(0x0000fc00);
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DBREG_DRX ((&dbregs), regnum) = value;
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if (ptrace (PT_SETDBREGS, ptid_get_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
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perror_with_name (_("Couldn't write debug registers"));
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}
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void
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i386bsd_dr_set_control (unsigned long control)
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{
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i386bsd_dr_set (7, control);
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}
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void
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i386bsd_dr_set_addr (int regnum, CORE_ADDR addr)
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{
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gdb_assert (regnum >= 0 && regnum <= 4);
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i386bsd_dr_set (regnum, addr);
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}
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CORE_ADDR
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i386bsd_dr_get_addr (int regnum)
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{
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return i386bsd_dr_get (inferior_ptid, regnum);
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}
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unsigned long
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i386bsd_dr_get_status (void)
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{
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return i386bsd_dr_get (inferior_ptid, 6);
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}
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unsigned long
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i386bsd_dr_get_control (void)
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{
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return i386bsd_dr_get (inferior_ptid, 7);
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}
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#endif /* PT_GETDBREGS */
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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, i386bsd-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
|
||
#elif defined (OpenBSD)
|
||
#define SC_REG_OFFSET i386obsd_sc_reg_offset
|
||
#endif
|
||
|
||
#ifdef SC_REG_OFFSET
|
||
|
||
/* We only check the program counter, stack pointer and frame
|
||
pointer since these members of `struct sigcontext' are essential
|
||
for providing backtraces. More checks could be added, but would
|
||
involve adding configure checks for the appropriate structure
|
||
members, since older BSD's don't provide all of them. */
|
||
|
||
#define SC_PC_OFFSET SC_REG_OFFSET[I386_EIP_REGNUM]
|
||
#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 */
|
||
}
|