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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.
255 lines
6.9 KiB
C
255 lines
6.9 KiB
C
/* Native-dependent code for PA-RISC HP-UX.
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Copyright (C) 2004, 2005, 2007 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 "regcache.h"
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#include "target.h"
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#include "gdb_assert.h"
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#include <sys/ptrace.h>
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#include <machine/save_state.h>
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#ifdef HAVE_TTRACE
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#include <sys/ttrace.h>
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#endif
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#include "hppa-tdep.h"
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#include "inf-ptrace.h"
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#include "inf-ttrace.h"
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/* Non-zero if we should pretend not to be a runnable target. */
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int child_suppress_run = 0;
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/* Return the offset of register REGNUM within `struct save_state'.
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The offset returns depends on the flags in the "flags" register and
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the register size (32-bit or 64-bit). These are taken from
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REGCACHE. */
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LONGEST
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hppa_hpux_save_state_offset (struct regcache *regcache, int regnum)
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{
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LONGEST offset;
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if (regnum == HPPA_FLAGS_REGNUM)
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return ssoff (ss_flags);
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if (HPPA_R0_REGNUM < regnum && regnum < HPPA_FP0_REGNUM)
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{
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struct gdbarch *arch = get_regcache_arch (regcache);
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size_t size = register_size (arch, HPPA_R1_REGNUM);
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ULONGEST flags;
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gdb_assert (size == 4 || size == 8);
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regcache_cooked_read_unsigned (regcache, HPPA_FLAGS_REGNUM, &flags);
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if (flags & SS_WIDEREGS)
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offset = ssoff (ss_wide) + (8 - size) + (regnum - HPPA_R0_REGNUM) * 8;
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else
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offset = ssoff (ss_narrow) + (regnum - HPPA_R1_REGNUM) * 4;
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}
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else
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{
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struct gdbarch *arch = get_regcache_arch (regcache);
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size_t size = register_size (arch, HPPA_FP0_REGNUM);
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gdb_assert (size == 4 || size == 8);
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gdb_assert (regnum >= HPPA_FP0_REGNUM);
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offset = ssoff(ss_fpblock) + (regnum - HPPA_FP0_REGNUM) * size;
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}
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gdb_assert (offset < sizeof (save_state_t));
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return offset;
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}
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/* Just in case a future version of PA-RISC HP-UX won't have ptrace(2)
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at all. */
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#ifndef PTRACE_TYPE_RET
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#define PTRACE_TYPE_RET void
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#endif
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static void
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hppa_hpux_fetch_register (struct regcache *regcache, int regnum)
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{
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CORE_ADDR addr;
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size_t size;
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PTRACE_TYPE_RET *buf;
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pid_t pid;
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int i;
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pid = ptid_get_pid (inferior_ptid);
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/* This isn't really an address, but ptrace thinks of it as one. */
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addr = hppa_hpux_save_state_offset (regcache, regnum);
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size = register_size (current_gdbarch, regnum);
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gdb_assert (size == 4 || size == 8);
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buf = alloca (size);
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#ifdef HAVE_TTRACE
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{
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lwpid_t lwp = ptid_get_lwp (inferior_ptid);
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if (ttrace (TT_LWP_RUREGS, pid, lwp, addr, size, (uintptr_t)buf) == -1)
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error (_("Couldn't read register %s (#%d): %s"),
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REGISTER_NAME (regnum), regnum, safe_strerror (errno));
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}
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#else
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{
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int i;
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/* Read the register contents from the inferior a chuck at the time. */
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for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
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{
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errno = 0;
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buf[i] = ptrace (PT_RUREGS, pid, (PTRACE_TYPE_ARG3) addr, 0, 0);
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if (errno != 0)
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error (_("Couldn't read register %s (#%d): %s"),
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REGISTER_NAME (regnum), regnum, safe_strerror (errno));
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addr += sizeof (PTRACE_TYPE_RET);
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}
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}
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#endif
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/* Take care with the "flags" register. It's stored as an `int' in
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`struct save_state', even for 64-bit code. */
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if (regnum == HPPA_FLAGS_REGNUM && size == 8)
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{
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ULONGEST flags = extract_unsigned_integer ((gdb_byte *)buf, 4);
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store_unsigned_integer ((gdb_byte *)buf, 8, flags);
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}
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regcache_raw_supply (regcache, regnum, buf);
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}
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static void
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hppa_hpux_fetch_inferior_registers (struct regcache *regcache, int regnum)
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{
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if (regnum == -1)
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for (regnum = 0; regnum < NUM_REGS; regnum++)
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hppa_hpux_fetch_register (regcache, regnum);
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else
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hppa_hpux_fetch_register (regcache, regnum);
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}
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/* Store register REGNUM into the inferior. */
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static void
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hppa_hpux_store_register (struct regcache *regcache, int regnum)
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{
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CORE_ADDR addr;
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size_t size;
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PTRACE_TYPE_RET *buf;
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pid_t pid;
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pid = ptid_get_pid (inferior_ptid);
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/* This isn't really an address, but ptrace thinks of it as one. */
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addr = hppa_hpux_save_state_offset (regcache, regnum);
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size = register_size (current_gdbarch, regnum);
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gdb_assert (size == 4 || size == 8);
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buf = alloca (size);
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regcache_raw_collect (regcache, regnum, buf);
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/* Take care with the "flags" register. It's stored as an `int' in
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`struct save_state', even for 64-bit code. */
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if (regnum == HPPA_FLAGS_REGNUM && size == 8)
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{
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ULONGEST flags = extract_unsigned_integer ((gdb_byte *)buf, 8);
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store_unsigned_integer ((gdb_byte *)buf, 4, flags);
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size = 4;
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}
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#ifdef HAVE_TTRACE
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{
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lwpid_t lwp = ptid_get_lwp (inferior_ptid);
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if (ttrace (TT_LWP_WUREGS, pid, lwp, addr, size, (uintptr_t)buf) == -1)
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error (_("Couldn't write register %s (#%d): %s"),
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REGISTER_NAME (regnum), regnum, safe_strerror (errno));
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}
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#else
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{
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int i;
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/* Write the register contents into the inferior a chunk at the time. */
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for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
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{
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errno = 0;
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ptrace (PT_WUREGS, pid, (PTRACE_TYPE_ARG3) addr, buf[i], 0);
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if (errno != 0)
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error (_("Couldn't write register %s (#%d): %s"),
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REGISTER_NAME (regnum), regnum, safe_strerror (errno));
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addr += sizeof (PTRACE_TYPE_RET);
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}
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}
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#endif
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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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hppa_hpux_store_inferior_registers (struct regcache *regcache, int regnum)
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{
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if (regnum == -1)
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for (regnum = 0; regnum < NUM_REGS; regnum++)
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hppa_hpux_store_register (regcache, regnum);
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else
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hppa_hpux_store_register (regcache, regnum);
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}
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static int
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hppa_hpux_child_can_run (void)
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{
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/* This variable is controlled by modules that layer their own
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process structure atop that provided here. The code in
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hpux-thread.c does this to support the HP-UX user-mode DCE
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threads. */
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return !child_suppress_run;
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}
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/* Prevent warning from -Wmissing-prototypes. */
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void _initialize_hppa_hpux_nat (void);
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void
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_initialize_hppa_hpux_nat (void)
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{
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struct target_ops *t;
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#ifdef HAVE_TTRACE
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t = inf_ttrace_target ();
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#else
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t = inf_ptrace_target ();
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#endif
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t->to_fetch_registers = hppa_hpux_fetch_inferior_registers;
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t->to_store_registers = hppa_hpux_store_inferior_registers;
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t->to_can_run = hppa_hpux_child_can_run;
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add_target (t);
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}
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