binutils-gdb/gdb/hppa-hpux-nat.c
Ulrich Weigand 56be38147c * target.h (struct regcache): Add forward declaration.
(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.
2007-05-06 14:34:38 +00:00

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/* Native-dependent code for PA-RISC HP-UX.
Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "inferior.h"
#include "regcache.h"
#include "target.h"
#include "gdb_assert.h"
#include <sys/ptrace.h>
#include <machine/save_state.h>
#ifdef HAVE_TTRACE
#include <sys/ttrace.h>
#endif
#include "hppa-tdep.h"
#include "inf-ptrace.h"
#include "inf-ttrace.h"
/* Non-zero if we should pretend not to be a runnable target. */
int child_suppress_run = 0;
/* Return the offset of register REGNUM within `struct save_state'.
The offset returns depends on the flags in the "flags" register and
the register size (32-bit or 64-bit). These are taken from
REGCACHE. */
LONGEST
hppa_hpux_save_state_offset (struct regcache *regcache, int regnum)
{
LONGEST offset;
if (regnum == HPPA_FLAGS_REGNUM)
return ssoff (ss_flags);
if (HPPA_R0_REGNUM < regnum && regnum < HPPA_FP0_REGNUM)
{
struct gdbarch *arch = get_regcache_arch (regcache);
size_t size = register_size (arch, HPPA_R1_REGNUM);
ULONGEST flags;
gdb_assert (size == 4 || size == 8);
regcache_cooked_read_unsigned (regcache, HPPA_FLAGS_REGNUM, &flags);
if (flags & SS_WIDEREGS)
offset = ssoff (ss_wide) + (8 - size) + (regnum - HPPA_R0_REGNUM) * 8;
else
offset = ssoff (ss_narrow) + (regnum - HPPA_R1_REGNUM) * 4;
}
else
{
struct gdbarch *arch = get_regcache_arch (regcache);
size_t size = register_size (arch, HPPA_FP0_REGNUM);
gdb_assert (size == 4 || size == 8);
gdb_assert (regnum >= HPPA_FP0_REGNUM);
offset = ssoff(ss_fpblock) + (regnum - HPPA_FP0_REGNUM) * size;
}
gdb_assert (offset < sizeof (save_state_t));
return offset;
}
/* Just in case a future version of PA-RISC HP-UX won't have ptrace(2)
at all. */
#ifndef PTRACE_TYPE_RET
#define PTRACE_TYPE_RET void
#endif
static void
hppa_hpux_fetch_register (struct regcache *regcache, int regnum)
{
CORE_ADDR addr;
size_t size;
PTRACE_TYPE_RET *buf;
pid_t pid;
int i;
pid = ptid_get_pid (inferior_ptid);
/* This isn't really an address, but ptrace thinks of it as one. */
addr = hppa_hpux_save_state_offset (regcache, regnum);
size = register_size (current_gdbarch, regnum);
gdb_assert (size == 4 || size == 8);
buf = alloca (size);
#ifdef HAVE_TTRACE
{
lwpid_t lwp = ptid_get_lwp (inferior_ptid);
if (ttrace (TT_LWP_RUREGS, pid, lwp, addr, size, (uintptr_t)buf) == -1)
error (_("Couldn't read register %s (#%d): %s"),
REGISTER_NAME (regnum), regnum, safe_strerror (errno));
}
#else
{
int i;
/* Read the register contents from the inferior a chuck at the time. */
for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
{
errno = 0;
buf[i] = ptrace (PT_RUREGS, pid, (PTRACE_TYPE_ARG3) addr, 0, 0);
if (errno != 0)
error (_("Couldn't read register %s (#%d): %s"),
REGISTER_NAME (regnum), regnum, safe_strerror (errno));
addr += sizeof (PTRACE_TYPE_RET);
}
}
#endif
/* Take care with the "flags" register. It's stored as an `int' in
`struct save_state', even for 64-bit code. */
if (regnum == HPPA_FLAGS_REGNUM && size == 8)
{
ULONGEST flags = extract_unsigned_integer ((gdb_byte *)buf, 4);
store_unsigned_integer ((gdb_byte *)buf, 8, flags);
}
regcache_raw_supply (regcache, regnum, buf);
}
static void
hppa_hpux_fetch_inferior_registers (struct regcache *regcache, int regnum)
{
if (regnum == -1)
for (regnum = 0; regnum < NUM_REGS; regnum++)
hppa_hpux_fetch_register (regcache, regnum);
else
hppa_hpux_fetch_register (regcache, regnum);
}
/* Store register REGNUM into the inferior. */
static void
hppa_hpux_store_register (struct regcache *regcache, int regnum)
{
CORE_ADDR addr;
size_t size;
PTRACE_TYPE_RET *buf;
pid_t pid;
pid = ptid_get_pid (inferior_ptid);
/* This isn't really an address, but ptrace thinks of it as one. */
addr = hppa_hpux_save_state_offset (regcache, regnum);
size = register_size (current_gdbarch, regnum);
gdb_assert (size == 4 || size == 8);
buf = alloca (size);
regcache_raw_collect (regcache, regnum, buf);
/* Take care with the "flags" register. It's stored as an `int' in
`struct save_state', even for 64-bit code. */
if (regnum == HPPA_FLAGS_REGNUM && size == 8)
{
ULONGEST flags = extract_unsigned_integer ((gdb_byte *)buf, 8);
store_unsigned_integer ((gdb_byte *)buf, 4, flags);
size = 4;
}
#ifdef HAVE_TTRACE
{
lwpid_t lwp = ptid_get_lwp (inferior_ptid);
if (ttrace (TT_LWP_WUREGS, pid, lwp, addr, size, (uintptr_t)buf) == -1)
error (_("Couldn't write register %s (#%d): %s"),
REGISTER_NAME (regnum), regnum, safe_strerror (errno));
}
#else
{
int i;
/* Write the register contents into the inferior a chunk at the time. */
for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
{
errno = 0;
ptrace (PT_WUREGS, pid, (PTRACE_TYPE_ARG3) addr, buf[i], 0);
if (errno != 0)
error (_("Couldn't write register %s (#%d): %s"),
REGISTER_NAME (regnum), regnum, safe_strerror (errno));
addr += sizeof (PTRACE_TYPE_RET);
}
}
#endif
}
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
this for all registers (including the floating point registers). */
static void
hppa_hpux_store_inferior_registers (struct regcache *regcache, int regnum)
{
if (regnum == -1)
for (regnum = 0; regnum < NUM_REGS; regnum++)
hppa_hpux_store_register (regcache, regnum);
else
hppa_hpux_store_register (regcache, regnum);
}
static int
hppa_hpux_child_can_run (void)
{
/* This variable is controlled by modules that layer their own
process structure atop that provided here. The code in
hpux-thread.c does this to support the HP-UX user-mode DCE
threads. */
return !child_suppress_run;
}
/* Prevent warning from -Wmissing-prototypes. */
void _initialize_hppa_hpux_nat (void);
void
_initialize_hppa_hpux_nat (void)
{
struct target_ops *t;
#ifdef HAVE_TTRACE
t = inf_ttrace_target ();
#else
t = inf_ptrace_target ();
#endif
t->to_fetch_registers = hppa_hpux_fetch_inferior_registers;
t->to_store_registers = hppa_hpux_store_inferior_registers;
t->to_can_run = hppa_hpux_child_can_run;
add_target (t);
}