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https://sourceware.org/git/binutils-gdb.git
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56be38147c
(struct target_ops): Add REGCACHE parameter to to_fetch_registers and to_store_registers target operations. (target_fetch_registers, target_store_registers): Update. * regcache.c (regcache_raw_read): Replace register_cached by regcache_valid_p. Pass regcache to target_fetch_registers. (regcache_raw_write): Pass regcache to target_store_registers. * arm-linux-nat.c (store_fpregister, store_fpregs, store_register, store_regs, store_wmmx_regs): Replace register_cached by regcache_valid_p. * bsd-kvm.c (bsd_kvm_open, bsd_kvm_proc_cmd): Pass current_regcache to target_fetch_registers calls. * corelow.c (core_open): Likewise. * linux-nat.c (linux_nat_corefile_thread_callback): Likewise. * proc-service.c (ps_lgetregs, ps_lsetregs, ps_lgetfpregs, ps_lsetfpregs): Likewise. * sol-thread.c (ps_lgetregs, ps_lsetregs, ps_lgetfpregs, ps_lsetfpregs): Likewise. * win32-nat.c (win32_resume): Likewise. * ia64-tdep.c (ia64_store_return_value): Pass current_regcache to target_store_registers call. * rs6000-tdep.c (rs6000_push_dummy_call): Likewise. * inferior.h (store_inferior_registers): Update prototype. (fetch_inferior_registers): Likewise. * gnu-nat.c (gnu_store_registers, gnu_fetch_registers): Likewise. * mips-linux-nat.c (super_fetch_registers, super_store_registers): Update function pointer signatures. * aix-thread.c (aix_thread_fetch_registers): Add REGCACHE parameter, use it instead of current_regcache, update calls. (aix_thread_store_registers): Likewise. * alphabsd-nat.c (alphabsd_fetch_inferior_registers): Likewise. (alphabsd_store_inferior_registers): Likewise. * amd64bsd-nat.c (amd64bsd_fetch_inferior_registers): Likewise. (amd64bsd_store_inferior_registers): Likewise. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Likewise. (amd64_linux_store_inferior_registers): Likewise. * arm-linux-nat.c (fetch_fpregister, fetch_fpregs, store_fpregister, store_fpregs, fetch_register, fetch_regs, store_register, store_regs, fetch_wmmx_regs, store_wmmx_regs): Likewise. (arm_linux_fetch_inferior_registers): Likewise. (arm_linux_store_inferior_registers): Likewise. * armnbsd-nat.c (fetch_register, fetch_regs, fetch_fp_register, fetch_fp_regs, armnbsd_fetch_registers): Likewise. (store_register, store_regs, store_fp_register, store_fp_regs, armnbsd_store_registers): Likewise. * bsd-kvm.c (bsd_kvm_fetch_pcb, bsd_kvm_fetch_registers): Likewise. * bsd-uthread.c (bsd_uthread_fetch_registers): Likewise. (bsd_uthread_store_registers): Likewise. * corelow.c (get_core_registers): Likewise. * go32-nat.c (fetch_register, go32_fetch_registers, store_register, go32_store_registers): Likewise. * hppabsd-nat.c (hppabsd_fetch_registers): Likewise. (hppabsd_store_registers): Likewise. * hppa-hpux-nat.c (hppa_hpux_fetch_register): Likewise. (hppa_hpux_fetch_inferior_registers): Likewise. (hppa_hpux_store_register): Likewise. (hppa_hpux_store_inferior_registers): Likewise. * hppa-linux-nat.c (fetch_register, store_register): Likewise. (hppa_linux_fetch_inferior_registers): Likewise. (hppa_linux_store_inferior_registers): Likewise. * hpux-thread.c (hpux_thread_fetch_registers): Likewise. (hpux_thread_store_registers): Likewise. * i386bsd-nat.c (i386bsd_fetch_inferior_registers): Likewise. (i386bsd_store_inferior_registers): Likewise. * i386gnu-nat.c (fetch_fpregs, gnu_fetch_registers, store_fpregs, gnu_store_registers): Likewise. * i386-linux-nat.c (fetch_register, store_register, fetch_regs, store_regs, fetch_fpregs, store_fpregs, fetch_fpxregs, store_fpxregs): Likewise. (i386_linux_fetch_inferior_registers): Likewise. (i386_linux_store_inferior_registers): Likewise. * ia64-linux-nat.c (ia64_linux_fetch_register): Likewise. (ia64_linux_fetch_registers): Likewise. (ia64_linux_store_register): Likewise. (ia64_linux_store_registers): Likewise. * inf-child.c (inf_child_fetch_inferior_registers): Likewise. (inf_child_store_inferior_registers): Likewise. * inf-ptrace.c (inf_ptrace_fetch_register): Likewise. (inf_ptrace_fetch_registers): Likewise. (inf_ptrace_store_register): Likewise. (inf_ptrace_store_registers): Likewise. * infptrace.c (fetch_register, store_register): Likewise. (fetch_inferior_registers, store_inferior_registers): Likewise. * m32r-linux-nat.c (fetch_regs, store_regs): Likewise. (m32r_linux_fetch_inferior_registers): Likewise. (m32r_linux_store_inferior_registers): Likewise. * m68kbsd-nat.c (m68kbsd_fetch_inferior_registers): Likewise. (m68kbsd_store_inferior_registers): Likewise. * m68klinux-nat.c (fetch_register, old_fetch_inferior_registers, store_register, old_store_inferior_registers, fetch_regs, store_regs, fetch_fpregs, store_fpregs): Likewise. (m68k_linux_fetch_inferior_registers): Likewise. (m68k_linux_store_inferior_registers): Likewise. * m88kbsd-nat.c (m88kbsd_fetch_inferior_registers): Likewise. (m88kbsd_store_inferior_registers): Likewise. * mips64obsd-nat.c (mips64obsd_fetch_inferior_registers): Likewise. (mips64obsd_store_inferior_registers): Likewise. * mips-linux-nat.c (mips64_linux_regsets_fetch_registers): Likewise. (mips64_linux_regsets_store_registers): Likewise. (mips64_linux_fetch_registers): Likewise. (mips64_linux_store_registers): Likewise. * mipsnbsd-nat.c (mipsnbsd_fetch_inferior_registers): Likewise. (mipsnbsd_store_inferior_registers): Likewise. * monitor.c (monitor_fetch_register, monitor_store_register): Likewise. (monitor_fetch_registers, monitor_store_registers): Likewise. * nto-procfs.c (procfs_fetch_registers): Likewise. (procfs_store_registers): Likewise. * ppc-linux-nat.c (fetch_altivec_register, fetch_spe_register, fetch_register, supply_vrregset, fetch_altivec_registers, fetch_ppc_registers, ppc_linux_fetch_inferior_registers): Likewise. (store_altivec_register, store_spe_register, store_register, fill_vrregset, store_altivec_registers, store_ppc_registers, ppc_linux_store_inferior_registers): Likewise. * ppcnbsd-nat.c (ppcnbsd_fetch_inferior_registers): Likewise. (ppcnbsd_store_inferior_registers): Likewise. * ppcobsd-nat.c (ppcobsd_fetch_registers): Likewise. (ppcobsd_store_registers): Likewise. * procfs.c (procfs_fetch_registers, procfs_store_registers): Likewise. * remote.c (fetch_register_using_p, process_g_packet, fetch_registers_using_g, remote_fetch_registers): Likewise. (store_register_using_P, store_registers_using_G, remote_store_registers): Likewise. * remote-m32r-sdi.c (m32r_fetch_registers, m32r_fetch_register, m32r_store_register, m32r_store_register): Likewise. * remote-mips.c (mips_fetch_registers, mips_store_registers): Likewise. * remote-sim.c (gdbsim_fetch_register): Likewise. (gdbsim_store_register): Likewise. * rs6000-nat.c (fetch_register, store_register): Likewise. (rs6000_fetch_inferior_registers): Likewise. (rs6000_store_inferior_registers): Likewise. * s390-nat.c (fetch_regs, store_regs): Likewise. (fetch_fpregs, store_fpregs): Likewise. (s390_linux_fetch_inferior_registers): Likewise. (s390_linux_store_inferior_registers): Likewise. * shnbsd-nat.c (shnbsd_fetch_inferior_registers): Likewise. (shnbsd_store_inferior_registers): Likewise. * sol-thread.c (sol_thread_fetch_registers): Likewise. (sol_thread_store_registers): Likewise. * sparc-nat.c (fetch_inferior_registers): Likewise. (store_inferior_registers): Likewise. * spu-linux-nat.c (spu_fetch_inferior_registers): Likewise. (spu_store_inferior_registers): Likewise. * target.c (debug_print_register): Likewise. (debug_to_fetch_registers, debug_to_store_registers): Likewise. * vaxbsd-nat.c (vaxbsd_fetch_inferior_registers): Likewise. (vaxbsd_store_inferior_registers): Likewise. * win32-nat.c (do_win32_fetch_inferior_registers): Likewise. (win32_fetch_inferior_registers): Likewise. (win32_store_inferior_registers): Likewise.
291 lines
8.1 KiB
C
291 lines
8.1 KiB
C
/* Low level interface to i386 running the GNU Hurd.
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Copyright (C) 1992, 1995, 1996, 1998, 2000, 2001, 2004, 2007
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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 "inferior.h"
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#include "floatformat.h"
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#include "regcache.h"
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#include "gdb_assert.h"
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#include <errno.h>
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#include <stdio.h>
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#include "gdb_string.h"
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#include <mach.h>
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#include <mach_error.h>
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#include <mach/message.h>
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#include <mach/exception.h>
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#include "i386-tdep.h"
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#include "gnu-nat.h"
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#include "i387-tdep.h"
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#ifdef HAVE_SYS_PROCFS_H
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# include <sys/procfs.h>
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# include "gregset.h"
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#endif
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/* Offset to the thread_state_t location where REG is stored. */
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#define REG_OFFSET(reg) offsetof (struct i386_thread_state, reg)
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/* At REG_OFFSET[N] is the offset to the thread_state_t location where
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the GDB register N is stored. */
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static int reg_offset[] =
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{
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REG_OFFSET (eax), REG_OFFSET (ecx), REG_OFFSET (edx), REG_OFFSET (ebx),
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REG_OFFSET (uesp), REG_OFFSET (ebp), REG_OFFSET (esi), REG_OFFSET (edi),
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REG_OFFSET (eip), REG_OFFSET (efl), REG_OFFSET (cs), REG_OFFSET (ss),
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REG_OFFSET (ds), REG_OFFSET (es), REG_OFFSET (fs), REG_OFFSET (gs)
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};
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#define REG_ADDR(state, regnum) ((char *)(state) + reg_offset[regnum])
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#define CREG_ADDR(state, regnum) ((const char *)(state) + reg_offset[regnum])
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/* Get the whole floating-point state of THREAD and record the values
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of the corresponding (pseudo) registers. */
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static void
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fetch_fpregs (struct regcache *regcache, struct proc *thread)
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{
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mach_msg_type_number_t count = i386_FLOAT_STATE_COUNT;
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struct i386_float_state state;
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error_t err;
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err = thread_get_state (thread->port, i386_FLOAT_STATE,
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(thread_state_t) &state, &count);
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if (err)
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{
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warning (_("Couldn't fetch floating-point state from %s"),
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proc_string (thread));
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return;
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}
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if (!state.initialized)
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{
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/* The floating-point state isn't initialized. */
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i387_supply_fsave (regcache, -1, NULL);
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}
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else
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{
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/* Supply the floating-point registers. */
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i387_supply_fsave (regcache, -1, state.hw_state);
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}
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}
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#ifdef HAVE_SYS_PROCFS_H
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/* These two calls are used by the core-regset.c code for
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reading ELF core files. */
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void
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supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregs)
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{
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int i;
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for (i = 0; i < I386_NUM_GREGS; i++)
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regcache_raw_supply (regcache, i, CREG_ADDR (gregs, i));
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}
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void
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supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregs)
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{
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i387_supply_fsave (regcache, -1, fpregs);
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}
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#endif
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/* Fetch register REGNO, or all regs if REGNO is -1. */
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void
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gnu_fetch_registers (struct regcache *regcache, int regno)
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{
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struct proc *thread;
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/* Make sure we know about new threads. */
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inf_update_procs (current_inferior);
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thread = inf_tid_to_thread (current_inferior, PIDGET (inferior_ptid));
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if (!thread)
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error (_("Can't fetch registers from thread %d: No such thread"),
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PIDGET (inferior_ptid));
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if (regno < I386_NUM_GREGS || regno == -1)
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{
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thread_state_t state;
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/* This does the dirty work for us. */
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state = proc_get_state (thread, 0);
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if (!state)
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{
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warning (_("Couldn't fetch registers from %s"),
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proc_string (thread));
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return;
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}
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if (regno == -1)
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{
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int i;
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proc_debug (thread, "fetching all register");
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for (i = 0; i < I386_NUM_GREGS; i++)
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regcache_raw_supply (regcache, i, REG_ADDR (state, i));
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thread->fetched_regs = ~0;
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}
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else
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{
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proc_debug (thread, "fetching register %s", REGISTER_NAME (regno));
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regcache_raw_supply (regcache, regno,
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REG_ADDR (state, regno));
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thread->fetched_regs |= (1 << regno);
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}
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}
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if (regno >= I386_NUM_GREGS || regno == -1)
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{
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proc_debug (thread, "fetching floating-point registers");
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fetch_fpregs (regcache, thread);
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}
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}
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/* Store the whole floating-point state into THREAD using information
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from the corresponding (pseudo) registers. */
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static void
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store_fpregs (const struct regcache *regcache, struct proc *thread, int regno)
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{
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mach_msg_type_number_t count = i386_FLOAT_STATE_COUNT;
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struct i386_float_state state;
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error_t err;
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err = thread_get_state (thread->port, i386_FLOAT_STATE,
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(thread_state_t) &state, &count);
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if (err)
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{
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warning (_("Couldn't fetch floating-point state from %s"),
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proc_string (thread));
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return;
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}
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/* FIXME: kettenis/2001-07-15: Is this right? Should we somehow
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take into account DEPRECATED_REGISTER_VALID like the old code did? */
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i387_collect_fsave (regcache, regno, state.hw_state);
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err = thread_set_state (thread->port, i386_FLOAT_STATE,
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(thread_state_t) &state, i386_FLOAT_STATE_COUNT);
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if (err)
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{
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warning (_("Couldn't store floating-point state into %s"),
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proc_string (thread));
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return;
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}
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}
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/* Store at least register REGNO, or all regs if REGNO == -1. */
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void
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gnu_store_registers (struct regcache *regcache, int regno)
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{
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struct proc *thread;
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/* Make sure we know about new threads. */
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inf_update_procs (current_inferior);
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thread = inf_tid_to_thread (current_inferior, PIDGET (inferior_ptid));
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if (!thread)
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error (_("Couldn't store registers into thread %d: No such thread"),
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PIDGET (inferior_ptid));
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if (regno < I386_NUM_GREGS || regno == -1)
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{
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thread_state_t state;
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thread_state_data_t old_state;
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int was_aborted = thread->aborted;
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int was_valid = thread->state_valid;
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int trace;
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if (!was_aborted && was_valid)
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memcpy (&old_state, &thread->state, sizeof (old_state));
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state = proc_get_state (thread, 1);
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if (!state)
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{
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warning (_("Couldn't store registers into %s"), proc_string (thread));
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return;
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}
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/* Save the T bit. We might try to restore the %eflags register
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below, but changing the T bit would seriously confuse GDB. */
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trace = ((struct i386_thread_state *)state)->efl & 0x100;
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if (!was_aborted && was_valid)
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/* See which registers have changed after aborting the thread. */
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{
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int check_regno;
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for (check_regno = 0; check_regno < I386_NUM_GREGS; check_regno++)
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if ((thread->fetched_regs & (1 << check_regno))
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&& memcpy (REG_ADDR (&old_state, check_regno),
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REG_ADDR (state, check_regno),
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register_size (current_gdbarch, check_regno)))
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/* Register CHECK_REGNO has changed! Ack! */
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{
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warning (_("Register %s changed after the thread was aborted"),
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REGISTER_NAME (check_regno));
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if (regno >= 0 && regno != check_regno)
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/* Update GDB's copy of the register. */
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regcache_raw_supply (regcache, check_regno,
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REG_ADDR (state, check_regno));
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else
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warning (_("... also writing this register! Suspicious..."));
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}
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}
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if (regno == -1)
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{
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int i;
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proc_debug (thread, "storing all registers");
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for (i = 0; i < I386_NUM_GREGS; i++)
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if (regcache_valid_p (regcache, i))
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regcache_raw_collect (regcache, i, REG_ADDR (state, i));
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}
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else
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{
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proc_debug (thread, "storing register %s", REGISTER_NAME (regno));
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gdb_assert (regcache_valid_p (regcache, regno));
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regcache_raw_collect (regcache, regno, REG_ADDR (state, regno));
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}
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/* Restore the T bit. */
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((struct i386_thread_state *)state)->efl &= ~0x100;
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((struct i386_thread_state *)state)->efl |= trace;
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}
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if (regno >= I386_NUM_GREGS || regno == -1)
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{
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proc_debug (thread, "storing floating-point registers");
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store_fpregs (regcache, thread, regno);
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}
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}
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