OpenE2K/binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
45851e004a
binutils-gdb/gdb/hppa-hpux-nat.c
Mark Kettenis eee22bf873 * inf-ttrace.c: New file. 
* inf-ttrace.h: New file.
* hppa-hpux-nat.c [HAVE_TTRACE]: Include <sys/ttrace>.
Include "inf-ttrace.h".
(ss_mpsfu_high): Define to ss_tlsp if necessary.
(hppa_hpux_fetch_register, hppa_hpux_store_register): Use
ptid_get_pid instead of PIDGET.  Modify to handle both ttrace and
ptrace systems.
(_initialize_hppa_hpux_nat) [HAVE_TTRACE]: Call inf_ttrace_traget
instead of inf_ptrace_target.
* config/pa/hpux.mh (NATDEPFILES): Add inf-ttrace.o.
* Makefile.in (inf_ttrace_h): New variable.
(hppa-hpux-nat.o): Update dependency.
(inf-ttrace.o): New dependency.
(ALLDEPFILES): Add inf-ptrace.c and inf-ttrace.c.
2004-11-23 21:14:33 +00:00

358 lines
8.7 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* Native-dependent code for PA-RISC HP-UX.
Copyright 2004 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, 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"
/* HP-UX 10.20 has a different name than HP-UX 11.00 and later.
Apparently, the intended usage changed. Unfortunately HP didn't
care about backwards compatibility. */
#ifdef ss_tlsp
#define ss_mpsfu_high ss_tlsp
#endif
int child_suppress_run = 0; /* Non-zero if we should pretend not to be
a runnable target. */
static int hppa_hpux_save_state_offset[] =
{
ssoff(ss_flags),
ssoff(ss_narrow.ss_gr1),
ssoff(ss_narrow.ss_rp),
ssoff(ss_narrow.ss_gr3),
ssoff(ss_narrow.ss_gr4),
ssoff(ss_narrow.ss_gr5),
ssoff(ss_narrow.ss_gr6),
ssoff(ss_narrow.ss_gr7),
ssoff(ss_narrow.ss_gr8),
ssoff(ss_narrow.ss_gr9),
ssoff(ss_narrow.ss_gr10),
ssoff(ss_narrow.ss_gr11),
ssoff(ss_narrow.ss_gr12),
ssoff(ss_narrow.ss_gr13),
ssoff(ss_narrow.ss_gr14),
ssoff(ss_narrow.ss_gr15),
ssoff(ss_narrow.ss_gr16),
ssoff(ss_narrow.ss_gr17),
ssoff(ss_narrow.ss_gr18),
ssoff(ss_narrow.ss_gr19),
ssoff(ss_narrow.ss_gr20),
ssoff(ss_narrow.ss_gr21),
ssoff(ss_narrow.ss_gr22),
ssoff(ss_narrow.ss_arg3),
ssoff(ss_narrow.ss_arg2),
ssoff(ss_narrow.ss_arg1),
ssoff(ss_narrow.ss_arg0),
ssoff(ss_narrow.ss_dp),
ssoff(ss_narrow.ss_ret0),
ssoff(ss_narrow.ss_ret1),
ssoff(ss_narrow.ss_sp),
ssoff(ss_narrow.ss_gr31),
ssoff(ss_narrow.ss_cr11),
ssoff(ss_narrow.ss_pcoq_head),
ssoff(ss_narrow.ss_pcsq_head),
ssoff(ss_narrow.ss_pcoq_tail),
ssoff(ss_narrow.ss_pcsq_tail),
ssoff(ss_narrow.ss_cr15),
ssoff(ss_narrow.ss_cr19),
ssoff(ss_narrow.ss_cr20),
ssoff(ss_narrow.ss_cr21),
ssoff(ss_narrow.ss_cr22),
ssoff(ss_narrow.ss_cpustate),
ssoff(ss_narrow.ss_sr4),
ssoff(ss_narrow.ss_sr0),
ssoff(ss_narrow.ss_sr1),
ssoff(ss_narrow.ss_sr2),
ssoff(ss_narrow.ss_sr3),
ssoff(ss_narrow.ss_sr5),
ssoff(ss_narrow.ss_sr6),
ssoff(ss_narrow.ss_sr7),
ssoff(ss_narrow.ss_cr0),
ssoff(ss_narrow.ss_cr8),
ssoff(ss_narrow.ss_cr9),
ssoff(ss_narrow.ss_cr10),
ssoff(ss_narrow.ss_cr12),
ssoff(ss_narrow.ss_cr13),
ssoff(ss_narrow.ss_cr24),
ssoff(ss_narrow.ss_cr25),
ssoff(ss_narrow.ss_cr26),
ssoff(ss_narrow.ss_mpsfu_high),
ssoff(ss_narrow.ss_mpsfu_low),
ssoff(ss_narrow.ss_mpsfu_ovflo),
ssoff(ss_pad),
ssoff(ss_frstat),
ssoff(ss_frexcp1),
ssoff(ss_frexcp2),
ssoff(ss_frexcp3),
ssoff(ss_frexcp4),
ssoff(ss_frexcp5),
ssoff(ss_frexcp6),
ssoff(ss_frexcp7),
ssoff(ss_fr4_hi),
ssoff(ss_fr4_lo),
ssoff(ss_fr5_hi),
ssoff(ss_fr5_lo),
ssoff(ss_fr6_hi),
ssoff(ss_fr6_lo),
ssoff(ss_fr7_hi),
ssoff(ss_fr7_lo),
ssoff(ss_fr8_hi),
ssoff(ss_fr8_lo),
ssoff(ss_fr9_hi),
ssoff(ss_fr9_lo),
ssoff(ss_fr10_hi),
ssoff(ss_fr10_lo),
ssoff(ss_fr11_hi),
ssoff(ss_fr11_lo),
ssoff(ss_fr12_hi),
ssoff(ss_fr12_lo),
ssoff(ss_fr13_hi),
ssoff(ss_fr13_lo),
ssoff(ss_fr14_hi),
ssoff(ss_fr14_lo),
ssoff(ss_fr15_hi),
ssoff(ss_fr15_lo),
ssoff(ss_fr16_hi),
ssoff(ss_fr16_lo),
ssoff(ss_fr17_hi),
ssoff(ss_fr17_lo),
ssoff(ss_fr18_hi),
ssoff(ss_fr18_lo),
ssoff(ss_fr19_hi),
ssoff(ss_fr19_lo),
ssoff(ss_fr20_hi),
ssoff(ss_fr20_lo),
ssoff(ss_fr21_hi),
ssoff(ss_fr21_lo),
ssoff(ss_fr22_hi),
ssoff(ss_fr22_lo),
ssoff(ss_fr23_hi),
ssoff(ss_fr23_lo),
ssoff(ss_fr24_hi),
ssoff(ss_fr24_lo),
ssoff(ss_fr25_hi),
ssoff(ss_fr25_lo),
ssoff(ss_fr26_hi),
ssoff(ss_fr26_lo),
ssoff(ss_fr27_hi),
ssoff(ss_fr27_lo),
ssoff(ss_fr28_hi),
ssoff(ss_fr28_lo),
ssoff(ss_fr29_hi),
ssoff(ss_fr29_lo),
ssoff(ss_fr30_hi),
ssoff(ss_fr30_lo),
ssoff(ss_fr31_hi),
ssoff(ss_fr31_lo)
};
static int
hppa_hpux_cannot_fetch_register (int regnum)
{
gdb_assert (regnum >= 0 && regnum < NUM_REGS);
return (regnum >= ARRAY_SIZE(hppa_hpux_save_state_offset));
}
static int
hppa_hpux_cannot_store_register (int regnum)
{
return hppa_hpux_cannot_fetch_register (regnum);
}
/* 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 (int regnum)
{
CORE_ADDR addr;
size_t size;
PTRACE_TYPE_RET *buf;
pid_t pid;
int i;
if (hppa_hpux_cannot_fetch_register (regnum))
{
regcache_raw_supply (current_regcache, regnum, NULL);
return;
}
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[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
regcache_raw_supply (current_regcache, regnum, buf);
}
static void
hppa_hpux_fetch_inferior_registers (int regnum)
{
if (regnum == -1)
for (regnum = 0; regnum < NUM_REGS; regnum++)
hppa_hpux_fetch_register (regnum);
else
hppa_hpux_fetch_register (regnum);
}
/* Store register REGNUM into the inferior. */
static void
hppa_hpux_store_register (int regnum)
{
CORE_ADDR addr;
size_t size;
PTRACE_TYPE_RET *buf;
pid_t pid;
if (hppa_hpux_cannot_store_register (regnum))
return;
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[regnum];
size = register_size (current_gdbarch, regnum);
gdb_assert (size == 4 || size == 8);
buf = alloca (size);
regcache_raw_collect (current_regcache, regnum, buf);
#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 (int regnum)
{
if (regnum == -1)
for (regnum = 0; regnum < NUM_REGS; regnum++)
hppa_hpux_store_register (regnum);
else
hppa_hpux_store_register (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. hpux-thread.c does this because
of the HP-UX user-mode level thread model. */
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);
}
Reference in New Issue View Git Blame Copy Permalink