mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
197e01b6dc
* arm-tdep.c: * ia64-tdep.c: * i386-tdep.c: * hpread.c: * hppa-tdep.c: * hppa-hpux-tdep.c: * gnu-nat.c: * gdbtypes.c: * gdbarch.h: * gdbarch.c: * eval.c: * dwarf2read.c: * dbxread.c: * copying: * symfile.c: * stabsread.c: * sh64-tdep.c: * sh-tdep.c: * s390-tdep.c: * rs6000-tdep.c: * remote.c: * remote-mips.c: * mips-tdep.c: * mdebugread.c: * linux-nat.c: * infrun.c: * xcoffread.c: * win32-nat.c: * valops.c: * utils.c: * tracepoint.c: * target.c: * symtab.c: * c-exp.y: * ada-valprint.c: * ada-typeprint.c: * ada-lex.l: * ada-lang.h: * ada-lang.c: * ada-exp.y: * alphafbsd-tdep.c: * alphabsd-tdep.h: * alphabsd-tdep.c: * alphabsd-nat.c: * alpha-tdep.h: * alpha-tdep.c: * alpha-osf1-tdep.c: * alpha-nat.c: * alpha-mdebug-tdep.c: * alpha-linux-tdep.c: * alpha-linux-nat.c: * aix-thread.c: * abug-rom.c: * arch-utils.c: * annotate.h: * annotate.c: * amd64obsd-tdep.c: * amd64obsd-nat.c: * amd64nbsd-tdep.c: * amd64nbsd-nat.c: * amd64fbsd-tdep.c: * amd64fbsd-nat.c: * amd64bsd-nat.c: * amd64-tdep.h: * amd64-tdep.c: * amd64-sol2-tdep.c: * amd64-nat.h: * amd64-nat.c: * amd64-linux-tdep.c: * amd64-linux-nat.c: * alphanbsd-tdep.c: * block.h: * block.c: * bfd-target.h: * bfd-target.c: * bcache.h: * bcache.c: * ax.h: * ax-general.c: * ax-gdb.h: * ax-gdb.c: * avr-tdep.c: * auxv.h: * auxv.c: * armnbsd-tdep.c: * armnbsd-nat.c: * arm-tdep.h: * arm-linux-nat.c: * arch-utils.h: * charset.c: * call-cmds.h: * c-valprint.c: * c-typeprint.c: * c-lang.h: * c-lang.c: * buildsym.h: * buildsym.c: * bsd-uthread.h: * bsd-uthread.c: * bsd-kvm.h: * bsd-kvm.c: * breakpoint.h: * core-regset.c: * core-aout.c: * completer.h: * completer.c: * complaints.h: * complaints.c: * command.h: * coffread.c: * coff-solib.h: * coff-solib.c: * coff-pe-read.h: * coff-pe-read.c: * cli-out.h: * cli-out.c: * charset.h: * dink32-rom.c: * dictionary.h: * dictionary.c: * demangle.c: * defs.h: * dcache.h: * dcache.c: * d10v-tdep.c: * cpu32bug-rom.c: * cp-valprint.c: * cp-support.h: * cp-support.c: * cp-namespace.c: * cp-abi.h: * cp-abi.c: * corelow.c: * corefile.c: * environ.c: * elfread.c: * dwarfread.c: * dwarf2loc.c: * dwarf2expr.h: * dwarf2expr.c: * dwarf2-frame.h: * dwarf2-frame.c: * dve3900-rom.c: * dummy-frame.h: * dummy-frame.c: * dsrec.c: * doublest.h: * doublest.c: * disasm.h: * disasm.c: * fork-child.c: * findvar.c: * fbsd-nat.h: * fbsd-nat.c: * f-valprint.c: * f-typeprint.c: * f-lang.h: * f-lang.c: * expression.h: * expprint.c: * exec.h: * exec.c: * exceptions.h: * exceptions.c: * event-top.h: * event-top.c: * event-loop.h: * event-loop.c: * gdb.c: * gdb-stabs.h: * gdb-events.h: * gdb-events.c: * gcore.c: * frv-tdep.h: * frv-tdep.c: * frv-linux-tdep.c: * frame.h: * frame.c: * frame-unwind.h: * frame-unwind.c: * frame-base.h: * frame-base.c: * gdb_vfork.h: * gdb_thread_db.h: * gdb_string.h: * gdb_stat.h: * gdb_regex.h: * gdb_ptrace.h: * gdb_proc_service.h: * gdb_obstack.h: * gdb_locale.h: * gdb_dirent.h: * gdb_curses.h: * gdb_assert.h: * gdbarch.sh: * gdb.h: * hpux-thread.c: * hppabsd-nat.c: * hppa-tdep.h: * hpacc-abi.c: * h8300-tdep.c: * gregset.h: * go32-nat.c: * gnu-v3-abi.c: * gnu-v2-abi.h: * gnu-v2-abi.c: * gnu-nat.h: * glibc-tdep.c: * gdbtypes.h: * gdbcore.h: * gdbcmd.h: * i386nbsd-tdep.c: * i386nbsd-nat.c: * i386gnu-tdep.c: * i386gnu-nat.c: * i386fbsd-tdep.c: * i386fbsd-nat.c: * i386bsd-tdep.c: * i386bsd-nat.h: * i386bsd-nat.c: * i386-tdep.h: * i386-sol2-nat.c: * i386-nto-tdep.c: * i386-nat.c: * i386-linux-tdep.h: * i386-linux-tdep.c: * i386-linux-nat.c: * i386-cygwin-tdep.c: * inf-ttrace.c: * inf-ptrace.h: * inf-ptrace.c: * inf-loop.h: * inf-loop.c: * inf-child.h: * inf-child.c: * ia64-tdep.h: * ia64-linux-nat.c: * i387-tdep.h: * i387-tdep.c: * i386v4-nat.c: * i386v-nat.c: * i386obsd-tdep.c: * i386obsd-nat.c: * kod.c: * jv-valprint.c: * jv-typeprint.c: * jv-lang.h: * jv-lang.c: * irix5-nat.c: * iq2000-tdep.c: * interps.h: * interps.c: * inftarg.c: * inflow.h: * inflow.c: * inferior.h: * infcmd.c: * infcall.h: * infcall.c: * inf-ttrace.h: * m32r-tdep.h: * m32r-tdep.c: * m32r-rom.c: * m32r-linux-tdep.c: * m32r-linux-nat.c: * m2-valprint.c: * m2-typeprint.c: * m2-lang.h: * m2-lang.c: * lynx-nat.c: * linux-thread-db.c: * linux-nat.h: * linespec.c: * libunwind-frame.h: * libunwind-frame.c: * language.h: * language.c: * macroexp.c: * macrocmd.c: * m88kbsd-nat.c: * m88k-tdep.h: * m88k-tdep.c: * m68klinux-tdep.c: * m68klinux-nat.c: * m68kbsd-tdep.c: * m68kbsd-nat.c: * m68k-tdep.h: * m68k-tdep.c: * mips-linux-nat.c: * mips-irix-tdep.c: * minsyms.c: * memattr.h: * memattr.c: * mem-break.c: * mdebugread.h: * main.h: * main.c: * macrotab.h: * macrotab.c: * macroscope.h: * macroscope.c: * macroexp.h: * nbsd-tdep.c: * mt-tdep.c: * monitor.h: * monitor.c: * mn10300-tdep.h: * mn10300-tdep.c: * mn10300-linux-tdep.c: * mipsv4-nat.c: * mipsread.c: * mipsnbsd-tdep.h: * mipsnbsd-tdep.c: * mipsnbsd-nat.c: * mips64obsd-tdep.c: * mips64obsd-nat.c: * mips-tdep.h: * mips-mdebug-tdep.c: * mips-linux-tdep.c: * osabi.h: * osabi.c: * ocd.h: * ocd.c: * observer.c: * objfiles.h: * objfiles.c: * objc-lang.h: * objc-lang.c: * objc-exp.y: * nto-tdep.h: * nto-tdep.c: * nto-procfs.c: * nlmread.c: * nbsd-tdep.h: * ppcobsd-tdep.c: * ppcobsd-nat.c: * ppcnbsd-tdep.h: * ppcnbsd-tdep.c: * ppcnbsd-nat.c: * ppcbug-rom.c: * ppc-tdep.h: * ppc-sysv-tdep.c: * ppc-linux-tdep.c: * ppc-linux-nat.c: * ppc-bdm.c: * parser-defs.h: * parse.c: * p-valprint.c: * p-typeprint.c: * p-lang.h: * p-lang.c: * remote-fileio.h: * remote-fileio.c: * remote-est.c: * remote-e7000.c: * regset.h: * regset.c: * reggroups.h: * reggroups.c: * regcache.h: * regcache.c: * proc-why.c: * proc-service.c: * proc-events.c: * printcmd.c: * ppcobsd-tdep.h: * sentinel-frame.h: * sentinel-frame.c: * scm-valprint.c: * scm-tags.h: * scm-lang.h: * scm-lang.c: * scm-exp.c: * s390-tdep.h: * rom68k-rom.c: * remote.h: * remote-utils.c: * remote-st.c: * remote-sim.c: * remote-sds.c: * remote-rdp.c: * remote-rdi.c: * remote-hms.c: * sim-regno.h: * shnbsd-tdep.h: * shnbsd-tdep.c: * shnbsd-nat.c: * sh-tdep.h: * serial.h: * serial.c: * ser-unix.h: * ser-unix.c: * ser-tcp.c: * ser-pipe.c: * ser-go32.c: * ser-e7kpc.c: * ser-base.h: * ser-base.c: * solib.c: * solib-svr4.h: * solib-svr4.c: * solib-sunos.c: * solib-som.h: * solib-som.c: * solib-pa64.h: * solib-pa64.c: * solib-osf.c: * solib-null.c: * solib-legacy.c: * solib-irix.c: * solib-frv.c: * solib-aix5.c: * sol-thread.c: * sparc64-linux-tdep.c: * sparc64-linux-nat.c: * sparc-tdep.h: * sparc-tdep.c: * sparc-sol2-tdep.c: * sparc-sol2-nat.c: * sparc-nat.h: * sparc-nat.c: * sparc-linux-tdep.c: * sparc-linux-nat.c: * source.h: * source.c: * somread.c: * solist.h: * solib.h: * std-regs.c: * stack.h: * stack.c: * stabsread.h: * sparcobsd-tdep.c: * sparcnbsd-tdep.c: * sparcnbsd-nat.c: * sparc64obsd-tdep.c: * sparc64nbsd-tdep.c: * sparc64nbsd-nat.c: * sparc64fbsd-tdep.c: * sparc64fbsd-nat.c: * sparc64-tdep.h: * sparc64-tdep.c: * sparc64-sol2-tdep.c: * sparc64-nat.c: * ui-file.c: * typeprint.h: * typeprint.c: * tramp-frame.h: * tramp-frame.c: * trad-frame.h: * trad-frame.c: * tracepoint.h: * top.c: * tobs.inc: * thread.c: * terminal.h: * target.h: * symfile.h: * stop-gdb.c: * vaxbsd-nat.c: * vax-tdep.h: * vax-tdep.c: * vax-nat.c: * varobj.h: * varobj.c: * value.h: * value.c: * valprint.h: * valprint.c: * v850-tdep.c: * uw-thread.c: * user-regs.c: * ui-out.h: * ui-out.c: * ui-file.h: * xcoffsolib.h: * xcoffsolib.c: * wrapper.c: * wince.c: * wince-stub.h: * wince-stub.c: * vaxobsd-tdep.c: * vaxnbsd-tdep.c: * gdb_gcore.sh: * copying.c: * configure.ac: * aclocal.m4: * acinclude.m4: * reply_mig_hack.awk: * observer.sh: * gdb_mbuild.sh: * arm-linux-tdep.c: * blockframe.c: * dbug-rom.c: * environ.h: * dwarf2loc.h: * gdb-events.sh: * glibc-tdep.h: * gdb_wait.h: * gdbthread.h: * i386-sol2-tdep.c: * hppabsd-tdep.c: * hppa-linux-nat.c: * hppa-hpux-nat.c: * ia64-linux-tdep.c: * infptrace.c: * linespec.h: * maint.c: * mips-mdebug-tdep.h: * remote-m32r-sdi.c: * s390-nat.c: * rs6000-nat.c: * remote-utils.h: * sh3-rom.c: * sh-linux-tdep.c: * top.h: * symtab.h: * symmisc.c: * symfile-mem.c: * srec.h: * user-regs.h: * version.h: * valarith.c: * xstormy16-tdep.c: * wrapper.h: * Makefile.in: * f-exp.y: * cris-tdep.c: * cp-name-parser.y: * procfs.c: * proc-utils.h: * proc-flags.c: * proc-api.c: * p-exp.y: * m68hc11-tdep.c: * m2-exp.y: * kod.h: * kod-cisco.c: * jv-exp.y: * hppa-linux-tdep.c: Add (c) after Copyright. Update the FSF address.
705 lines
17 KiB
C
705 lines
17 KiB
C
/* Functions specific to running gdb native on IA-64 running
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GNU/Linux.
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Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
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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 2 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, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#include "defs.h"
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#include "gdb_string.h"
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#include "inferior.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "regcache.h"
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#include "ia64-tdep.h"
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#include "linux-nat.h"
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#include <signal.h>
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#include <sys/ptrace.h>
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#include "gdb_wait.h"
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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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#include <sys/syscall.h>
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#include <sys/user.h>
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#include <asm/ptrace_offsets.h>
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#include <sys/procfs.h>
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/* Prototypes for supply_gregset etc. */
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#include "gregset.h"
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/* These must match the order of the register names.
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Some sort of lookup table is needed because the offsets associated
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with the registers are all over the board. */
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static int u_offsets[] =
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{
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/* general registers */
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-1, /* gr0 not available; i.e, it's always zero */
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PT_R1,
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PT_R2,
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PT_R3,
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PT_R4,
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PT_R5,
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PT_R6,
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PT_R7,
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PT_R8,
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PT_R9,
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PT_R10,
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PT_R11,
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PT_R12,
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PT_R13,
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PT_R14,
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PT_R15,
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PT_R16,
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PT_R17,
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PT_R18,
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PT_R19,
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PT_R20,
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PT_R21,
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PT_R22,
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PT_R23,
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PT_R24,
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PT_R25,
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PT_R26,
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PT_R27,
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PT_R28,
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PT_R29,
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PT_R30,
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PT_R31,
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/* gr32 through gr127 not directly available via the ptrace interface */
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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/* Floating point registers */
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-1, -1, /* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */
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PT_F2,
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PT_F3,
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PT_F4,
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PT_F5,
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PT_F6,
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PT_F7,
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PT_F8,
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PT_F9,
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PT_F10,
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PT_F11,
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PT_F12,
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PT_F13,
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PT_F14,
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PT_F15,
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PT_F16,
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PT_F17,
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PT_F18,
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PT_F19,
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PT_F20,
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PT_F21,
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PT_F22,
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PT_F23,
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PT_F24,
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PT_F25,
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PT_F26,
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PT_F27,
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PT_F28,
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PT_F29,
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PT_F30,
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PT_F31,
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PT_F32,
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PT_F33,
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PT_F34,
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PT_F35,
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PT_F36,
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PT_F37,
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PT_F38,
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PT_F39,
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PT_F40,
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PT_F41,
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PT_F42,
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PT_F43,
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PT_F44,
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PT_F45,
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PT_F46,
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PT_F47,
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PT_F48,
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PT_F49,
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PT_F50,
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PT_F51,
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PT_F52,
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PT_F53,
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PT_F54,
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PT_F55,
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PT_F56,
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PT_F57,
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PT_F58,
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PT_F59,
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PT_F60,
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PT_F61,
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PT_F62,
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PT_F63,
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PT_F64,
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PT_F65,
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PT_F66,
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PT_F67,
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PT_F68,
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PT_F69,
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PT_F70,
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PT_F71,
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PT_F72,
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PT_F73,
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PT_F74,
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PT_F75,
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PT_F76,
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PT_F77,
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PT_F78,
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PT_F79,
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PT_F80,
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PT_F81,
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PT_F82,
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PT_F83,
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PT_F84,
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PT_F85,
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PT_F86,
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PT_F87,
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PT_F88,
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PT_F89,
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PT_F90,
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PT_F91,
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PT_F92,
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PT_F93,
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PT_F94,
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PT_F95,
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PT_F96,
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PT_F97,
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PT_F98,
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PT_F99,
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PT_F100,
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PT_F101,
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PT_F102,
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PT_F103,
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PT_F104,
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PT_F105,
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PT_F106,
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PT_F107,
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PT_F108,
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PT_F109,
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PT_F110,
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PT_F111,
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PT_F112,
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PT_F113,
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PT_F114,
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PT_F115,
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PT_F116,
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PT_F117,
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PT_F118,
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PT_F119,
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PT_F120,
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PT_F121,
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PT_F122,
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PT_F123,
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PT_F124,
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PT_F125,
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PT_F126,
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PT_F127,
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/* predicate registers - we don't fetch these individually */
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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/* branch registers */
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PT_B0,
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PT_B1,
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PT_B2,
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PT_B3,
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PT_B4,
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PT_B5,
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PT_B6,
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PT_B7,
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/* virtual frame pointer and virtual return address pointer */
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-1, -1,
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/* other registers */
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|
PT_PR,
|
|
PT_CR_IIP, /* ip */
|
|
PT_CR_IPSR, /* psr */
|
|
PT_CFM, /* cfm */
|
|
/* kernel registers not visible via ptrace interface (?) */
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
/* hole */
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
PT_AR_RSC,
|
|
PT_AR_BSP,
|
|
PT_AR_BSPSTORE,
|
|
PT_AR_RNAT,
|
|
-1,
|
|
-1, /* Not available: FCR, IA32 floating control register */
|
|
-1, -1,
|
|
-1, /* Not available: EFLAG */
|
|
-1, /* Not available: CSD */
|
|
-1, /* Not available: SSD */
|
|
-1, /* Not available: CFLG */
|
|
-1, /* Not available: FSR */
|
|
-1, /* Not available: FIR */
|
|
-1, /* Not available: FDR */
|
|
-1,
|
|
PT_AR_CCV,
|
|
-1, -1, -1,
|
|
PT_AR_UNAT,
|
|
-1, -1, -1,
|
|
PT_AR_FPSR,
|
|
-1, -1, -1,
|
|
-1, /* Not available: ITC */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
PT_AR_PFS,
|
|
PT_AR_LC,
|
|
-1, /* Not available: EC, the Epilog Count register */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1,
|
|
/* nat bits - not fetched directly; instead we obtain these bits from
|
|
either rnat or unat or from memory. */
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1,
|
|
};
|
|
|
|
CORE_ADDR
|
|
register_addr (int regno, CORE_ADDR blockend)
|
|
{
|
|
CORE_ADDR addr;
|
|
|
|
if (regno < 0 || regno >= NUM_REGS)
|
|
error (_("Invalid register number %d."), regno);
|
|
|
|
if (u_offsets[regno] == -1)
|
|
addr = 0;
|
|
else
|
|
addr = (CORE_ADDR) u_offsets[regno];
|
|
|
|
return addr;
|
|
}
|
|
|
|
int ia64_cannot_fetch_register (regno)
|
|
int regno;
|
|
{
|
|
return regno < 0 || regno >= NUM_REGS || u_offsets[regno] == -1;
|
|
}
|
|
|
|
int ia64_cannot_store_register (regno)
|
|
int regno;
|
|
{
|
|
/* Rationale behind not permitting stores to bspstore...
|
|
|
|
The IA-64 architecture provides bspstore and bsp which refer
|
|
memory locations in the RSE's backing store. bspstore is the
|
|
next location which will be written when the RSE needs to write
|
|
to memory. bsp is the address at which r32 in the current frame
|
|
would be found if it were written to the backing store.
|
|
|
|
The IA-64 architecture provides read-only access to bsp and
|
|
read/write access to bspstore (but only when the RSE is in
|
|
the enforced lazy mode). It should be noted that stores
|
|
to bspstore also affect the value of bsp. Changing bspstore
|
|
does not affect the number of dirty entries between bspstore
|
|
and bsp, so changing bspstore by N words will also cause bsp
|
|
to be changed by (roughly) N as well. (It could be N-1 or N+1
|
|
depending upon where the NaT collection bits fall.)
|
|
|
|
OTOH, the Linux kernel provides read/write access to bsp (and
|
|
currently read/write access to bspstore as well). But it
|
|
is definitely the case that if you change one, the other
|
|
will change at the same time. It is more useful to gdb to
|
|
be able to change bsp. So in order to prevent strange and
|
|
undesirable things from happening when a dummy stack frame
|
|
is popped (after calling an inferior function), we allow
|
|
bspstore to be read, but not written. (Note that popping
|
|
a (generic) dummy stack frame causes all registers that
|
|
were previously read from the inferior process to be written
|
|
back.) */
|
|
|
|
return regno < 0 || regno >= NUM_REGS || u_offsets[regno] == -1
|
|
|| regno == IA64_BSPSTORE_REGNUM;
|
|
}
|
|
|
|
void
|
|
supply_gregset (gregset_t *gregsetp)
|
|
{
|
|
int regi;
|
|
greg_t *regp = (greg_t *) gregsetp;
|
|
|
|
for (regi = IA64_GR0_REGNUM; regi <= IA64_GR31_REGNUM; regi++)
|
|
{
|
|
regcache_raw_supply (current_regcache, regi,
|
|
(char *) (regp + (regi - IA64_GR0_REGNUM)));
|
|
}
|
|
|
|
/* FIXME: NAT collection bits are at index 32; gotta deal with these
|
|
somehow... */
|
|
|
|
regcache_raw_supply (current_regcache, IA64_PR_REGNUM, (char *) (regp + 33));
|
|
|
|
for (regi = IA64_BR0_REGNUM; regi <= IA64_BR7_REGNUM; regi++)
|
|
{
|
|
regcache_raw_supply (current_regcache, regi,
|
|
(char *) (regp + 34 + (regi - IA64_BR0_REGNUM)));
|
|
}
|
|
|
|
regcache_raw_supply (current_regcache, IA64_IP_REGNUM,
|
|
(char *) (regp + 42));
|
|
regcache_raw_supply (current_regcache, IA64_CFM_REGNUM,
|
|
(char *) (regp + 43));
|
|
regcache_raw_supply (current_regcache, IA64_PSR_REGNUM,
|
|
(char *) (regp + 44));
|
|
regcache_raw_supply (current_regcache, IA64_RSC_REGNUM,
|
|
(char *) (regp + 45));
|
|
regcache_raw_supply (current_regcache, IA64_BSP_REGNUM,
|
|
(char *) (regp + 46));
|
|
regcache_raw_supply (current_regcache, IA64_BSPSTORE_REGNUM,
|
|
(char *) (regp + 47));
|
|
regcache_raw_supply (current_regcache, IA64_RNAT_REGNUM,
|
|
(char *) (regp + 48));
|
|
regcache_raw_supply (current_regcache, IA64_CCV_REGNUM,
|
|
(char *) (regp + 49));
|
|
regcache_raw_supply (current_regcache, IA64_UNAT_REGNUM,
|
|
(char *) (regp + 50));
|
|
regcache_raw_supply (current_regcache, IA64_FPSR_REGNUM,
|
|
(char *) (regp + 51));
|
|
regcache_raw_supply (current_regcache, IA64_PFS_REGNUM,
|
|
(char *) (regp + 52));
|
|
regcache_raw_supply (current_regcache, IA64_LC_REGNUM,
|
|
(char *) (regp + 53));
|
|
regcache_raw_supply (current_regcache, IA64_EC_REGNUM,
|
|
(char *) (regp + 54));
|
|
}
|
|
|
|
void
|
|
fill_gregset (gregset_t *gregsetp, int regno)
|
|
{
|
|
int regi;
|
|
greg_t *regp = (greg_t *) gregsetp;
|
|
|
|
#define COPY_REG(_idx_,_regi_) \
|
|
if ((regno == -1) || regno == _regi_) \
|
|
regcache_raw_collect (current_regcache, _regi_, regp + _idx_)
|
|
|
|
for (regi = IA64_GR0_REGNUM; regi <= IA64_GR31_REGNUM; regi++)
|
|
{
|
|
COPY_REG (regi - IA64_GR0_REGNUM, regi);
|
|
}
|
|
|
|
/* FIXME: NAT collection bits at index 32? */
|
|
|
|
COPY_REG (33, IA64_PR_REGNUM);
|
|
|
|
for (regi = IA64_BR0_REGNUM; regi <= IA64_BR7_REGNUM; regi++)
|
|
{
|
|
COPY_REG (34 + (regi - IA64_BR0_REGNUM), regi);
|
|
}
|
|
|
|
COPY_REG (42, IA64_IP_REGNUM);
|
|
COPY_REG (43, IA64_CFM_REGNUM);
|
|
COPY_REG (44, IA64_PSR_REGNUM);
|
|
COPY_REG (45, IA64_RSC_REGNUM);
|
|
COPY_REG (46, IA64_BSP_REGNUM);
|
|
COPY_REG (47, IA64_BSPSTORE_REGNUM);
|
|
COPY_REG (48, IA64_RNAT_REGNUM);
|
|
COPY_REG (49, IA64_CCV_REGNUM);
|
|
COPY_REG (50, IA64_UNAT_REGNUM);
|
|
COPY_REG (51, IA64_FPSR_REGNUM);
|
|
COPY_REG (52, IA64_PFS_REGNUM);
|
|
COPY_REG (53, IA64_LC_REGNUM);
|
|
COPY_REG (54, IA64_EC_REGNUM);
|
|
}
|
|
|
|
/* Given a pointer to a floating point register set in /proc format
|
|
(fpregset_t *), unpack the register contents and supply them as gdb's
|
|
idea of the current floating point register values. */
|
|
|
|
void
|
|
supply_fpregset (fpregset_t *fpregsetp)
|
|
{
|
|
int regi;
|
|
char *from;
|
|
|
|
for (regi = IA64_FR0_REGNUM; regi <= IA64_FR127_REGNUM; regi++)
|
|
{
|
|
from = (char *) &((*fpregsetp)[regi - IA64_FR0_REGNUM]);
|
|
regcache_raw_supply (current_regcache, regi, from);
|
|
}
|
|
}
|
|
|
|
/* Given a pointer to a floating point register set in /proc format
|
|
(fpregset_t *), update the register specified by REGNO from gdb's idea
|
|
of the current floating point register set. If REGNO is -1, update
|
|
them all. */
|
|
|
|
void
|
|
fill_fpregset (fpregset_t *fpregsetp, int regno)
|
|
{
|
|
int regi;
|
|
|
|
for (regi = IA64_FR0_REGNUM; regi <= IA64_FR127_REGNUM; regi++)
|
|
{
|
|
if ((regno == -1) || (regno == regi))
|
|
regcache_raw_collect (current_regcache, regi,
|
|
&((*fpregsetp)[regi - IA64_FR0_REGNUM]));
|
|
}
|
|
}
|
|
|
|
#define IA64_PSR_DB (1UL << 24)
|
|
#define IA64_PSR_DD (1UL << 39)
|
|
|
|
static void
|
|
enable_watchpoints_in_psr (ptid_t ptid)
|
|
{
|
|
CORE_ADDR psr;
|
|
|
|
psr = read_register_pid (IA64_PSR_REGNUM, ptid);
|
|
if (!(psr & IA64_PSR_DB))
|
|
{
|
|
psr |= IA64_PSR_DB; /* Set the db bit - this enables hardware
|
|
watchpoints and breakpoints. */
|
|
write_register_pid (IA64_PSR_REGNUM, psr, ptid);
|
|
}
|
|
}
|
|
|
|
static long
|
|
fetch_debug_register (ptid_t ptid, int idx)
|
|
{
|
|
long val;
|
|
int tid;
|
|
|
|
tid = TIDGET (ptid);
|
|
if (tid == 0)
|
|
tid = PIDGET (ptid);
|
|
|
|
val = ptrace (PT_READ_U, tid, (PTRACE_TYPE_ARG3) (PT_DBR + 8 * idx), 0);
|
|
|
|
return val;
|
|
}
|
|
|
|
static void
|
|
store_debug_register (ptid_t ptid, int idx, long val)
|
|
{
|
|
int tid;
|
|
|
|
tid = TIDGET (ptid);
|
|
if (tid == 0)
|
|
tid = PIDGET (ptid);
|
|
|
|
(void) ptrace (PT_WRITE_U, tid, (PTRACE_TYPE_ARG3) (PT_DBR + 8 * idx), val);
|
|
}
|
|
|
|
static void
|
|
fetch_debug_register_pair (ptid_t ptid, int idx, long *dbr_addr, long *dbr_mask)
|
|
{
|
|
if (dbr_addr)
|
|
*dbr_addr = fetch_debug_register (ptid, 2 * idx);
|
|
if (dbr_mask)
|
|
*dbr_mask = fetch_debug_register (ptid, 2 * idx + 1);
|
|
}
|
|
|
|
static void
|
|
store_debug_register_pair (ptid_t ptid, int idx, long *dbr_addr, long *dbr_mask)
|
|
{
|
|
if (dbr_addr)
|
|
store_debug_register (ptid, 2 * idx, *dbr_addr);
|
|
if (dbr_mask)
|
|
store_debug_register (ptid, 2 * idx + 1, *dbr_mask);
|
|
}
|
|
|
|
static int
|
|
is_power_of_2 (int val)
|
|
{
|
|
int i, onecount;
|
|
|
|
onecount = 0;
|
|
for (i = 0; i < 8 * sizeof (val); i++)
|
|
if (val & (1 << i))
|
|
onecount++;
|
|
|
|
return onecount <= 1;
|
|
}
|
|
|
|
int
|
|
ia64_linux_insert_watchpoint (ptid_t ptid, CORE_ADDR addr, int len, int rw)
|
|
{
|
|
int idx;
|
|
long dbr_addr, dbr_mask;
|
|
int max_watchpoints = 4;
|
|
|
|
if (len <= 0 || !is_power_of_2 (len))
|
|
return -1;
|
|
|
|
for (idx = 0; idx < max_watchpoints; idx++)
|
|
{
|
|
fetch_debug_register_pair (ptid, idx, NULL, &dbr_mask);
|
|
if ((dbr_mask & (0x3UL << 62)) == 0)
|
|
{
|
|
/* Exit loop if both r and w bits clear */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (idx == max_watchpoints)
|
|
return -1;
|
|
|
|
dbr_addr = (long) addr;
|
|
dbr_mask = (~(len - 1) & 0x00ffffffffffffffL); /* construct mask to match */
|
|
dbr_mask |= 0x0800000000000000L; /* Only match privilege level 3 */
|
|
switch (rw)
|
|
{
|
|
case hw_write:
|
|
dbr_mask |= (1L << 62); /* Set w bit */
|
|
break;
|
|
case hw_read:
|
|
dbr_mask |= (1L << 63); /* Set r bit */
|
|
break;
|
|
case hw_access:
|
|
dbr_mask |= (3L << 62); /* Set both r and w bits */
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
store_debug_register_pair (ptid, idx, &dbr_addr, &dbr_mask);
|
|
enable_watchpoints_in_psr (ptid);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ia64_linux_remove_watchpoint (ptid_t ptid, CORE_ADDR addr, int len)
|
|
{
|
|
int idx;
|
|
long dbr_addr, dbr_mask;
|
|
int max_watchpoints = 4;
|
|
|
|
if (len <= 0 || !is_power_of_2 (len))
|
|
return -1;
|
|
|
|
for (idx = 0; idx < max_watchpoints; idx++)
|
|
{
|
|
fetch_debug_register_pair (ptid, idx, &dbr_addr, &dbr_mask);
|
|
if ((dbr_mask & (0x3UL << 62)) && addr == (CORE_ADDR) dbr_addr)
|
|
{
|
|
dbr_addr = 0;
|
|
dbr_mask = 0;
|
|
store_debug_register_pair (ptid, idx, &dbr_addr, &dbr_mask);
|
|
return 0;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
ia64_linux_stopped_data_address (CORE_ADDR *addr_p)
|
|
{
|
|
CORE_ADDR psr;
|
|
int tid;
|
|
struct siginfo siginfo;
|
|
ptid_t ptid = inferior_ptid;
|
|
|
|
tid = TIDGET(ptid);
|
|
if (tid == 0)
|
|
tid = PIDGET (ptid);
|
|
|
|
errno = 0;
|
|
ptrace (PTRACE_GETSIGINFO, tid, (PTRACE_TYPE_ARG3) 0, &siginfo);
|
|
|
|
if (errno != 0 || siginfo.si_signo != SIGTRAP ||
|
|
(siginfo.si_code & 0xffff) != 0x0004 /* TRAP_HWBKPT */)
|
|
return 0;
|
|
|
|
psr = read_register_pid (IA64_PSR_REGNUM, ptid);
|
|
psr |= IA64_PSR_DD; /* Set the dd bit - this will disable the watchpoint
|
|
for the next instruction */
|
|
write_register_pid (IA64_PSR_REGNUM, psr, ptid);
|
|
|
|
*addr_p = (CORE_ADDR)siginfo.si_addr;
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
ia64_linux_stopped_by_watchpoint (void)
|
|
{
|
|
CORE_ADDR addr;
|
|
return ia64_linux_stopped_data_address (&addr);
|
|
}
|
|
|
|
static LONGEST (*super_xfer_partial) (struct target_ops *, enum target_object,
|
|
const char *, gdb_byte *, const gdb_byte *,
|
|
ULONGEST, LONGEST);
|
|
|
|
static LONGEST
|
|
ia64_linux_xfer_partial (struct target_ops *ops,
|
|
enum target_object object,
|
|
const char *annex,
|
|
gdb_byte *readbuf, const gdb_byte *writebuf,
|
|
ULONGEST offset, LONGEST len)
|
|
{
|
|
if (object == TARGET_OBJECT_UNWIND_TABLE && writebuf == NULL && offset == 0)
|
|
return syscall (__NR_getunwind, readbuf, len);
|
|
|
|
return super_xfer_partial (ops, object, annex, readbuf, writebuf,
|
|
offset, len);
|
|
}
|
|
|
|
void _initialize_ia64_linux_nat (void);
|
|
|
|
void
|
|
_initialize_ia64_linux_nat (void)
|
|
{
|
|
struct target_ops *t = linux_target ();
|
|
|
|
/* Fill in the generic GNU/Linux methods. */
|
|
t = linux_target ();
|
|
|
|
/* Override the default to_xfer_partial. */
|
|
super_xfer_partial = t->to_xfer_partial;
|
|
t->to_xfer_partial = ia64_linux_xfer_partial;
|
|
|
|
/* Register the target. */
|
|
add_target (t);
|
|
}
|