/* Native-dependent code for PA-RISC HP-UX.
- Copyright 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004-2014 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "inferior.h"
#include "regcache.h"
#include "target.h"
-#include "gdb_assert.h"
#include <sys/ptrace.h>
+#include <sys/utsname.h>
#include <machine/save_state.h>
+#ifdef HAVE_TTRACE
+#include <sys/ttrace.h>
+#endif
+
#include "hppa-tdep.h"
+#include "solib-som.h"
#include "inf-ptrace.h"
+#include "inf-ttrace.h"
-int child_suppress_run = 0; /* Non-zero if we should pretend not to be
- a runnable target. */
+/* 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. */
-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)
+static LONGEST
+hppa_hpux_save_state_offset (struct regcache *regcache, int regnum)
{
- gdb_assert (regnum >= 0 && regnum < NUM_REGS);
- return (regnum >= ARRAY_SIZE(hppa_hpux_save_state_offset));
-}
+ LONGEST offset;
-static int
-hppa_hpux_cannot_store_register (int regnum)
-{
- return hppa_hpux_cannot_fetch_register (regnum);
+ 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 (int regnum)
+hppa_hpux_fetch_register (struct regcache *regcache, int regnum)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
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 = PIDGET (inferior_ptid);
+ 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);
+ /* This isn't really an address, but ptrace thinks of it as one. */
+ addr = hppa_hpux_save_state_offset (regcache, regnum);
+ size = register_size (gdbarch, regnum);
- gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
+ gdb_assert (size == 4 || size == 8);
buf = alloca (size);
- /* Read the register contents from the inferior a chuck at the time. */
- for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
+#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"),
+ gdbarch_register_name (gdbarch, 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"),
+ gdbarch_register_name (gdbarch, 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)
{
- 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);
+ ULONGEST flags;
+ flags = extract_unsigned_integer ((gdb_byte *)buf, 4, byte_order);
+ store_unsigned_integer ((gdb_byte *)buf, 8, byte_order, flags);
}
- regcache_raw_supply (current_regcache, regnum, buf);
+
+ regcache_raw_supply (regcache, regnum, buf);
}
static void
-hppa_hpux_fetch_inferior_registers (int regnum)
+hppa_hpux_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
{
if (regnum == -1)
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- hppa_hpux_fetch_register (regnum);
+ for (regnum = 0;
+ regnum < gdbarch_num_regs (get_regcache_arch (regcache));
+ regnum++)
+ hppa_hpux_fetch_register (regcache, regnum);
else
- hppa_hpux_fetch_register (regnum);
+ hppa_hpux_fetch_register (regcache, regnum);
}
/* Store register REGNUM into the inferior. */
static void
-hppa_hpux_store_register (int regnum)
+hppa_hpux_store_register (struct regcache *regcache, int regnum)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR addr;
size_t size;
PTRACE_TYPE_RET *buf;
pid_t pid;
- int i;
-
- if (hppa_hpux_cannot_store_register (regnum))
- return;
- pid = PIDGET (inferior_ptid);
+ 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);
+ /* This isn't really an address, but ptrace thinks of it as one. */
+ addr = hppa_hpux_save_state_offset (regcache, regnum);
+ size = register_size (gdbarch, regnum);
- gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
+ gdb_assert (size == 4 || size == 8);
buf = alloca (size);
- /* Write the register contents into the inferior a chunk at the time. */
- regcache_raw_collect (current_regcache, regnum, buf);
- 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));
+ regcache_raw_collect (regcache, regnum, buf);
- addr += sizeof (PTRACE_TYPE_RET);
+ /* 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;
+ flags = extract_unsigned_integer ((gdb_byte *)buf, 8, byte_order);
+ store_unsigned_integer ((gdb_byte *)buf, 4, byte_order, 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"),
+ gdbarch_register_name (gdbarch, 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"),
+ gdbarch_register_name (gdbarch, 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)
+hppa_hpux_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
{
if (regnum == -1)
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- hppa_hpux_store_register (regnum);
+ for (regnum = 0;
+ regnum < gdbarch_num_regs (get_regcache_arch (regcache));
+ regnum++)
+ hppa_hpux_store_register (regcache, regnum);
else
- hppa_hpux_store_register (regnum);
+ hppa_hpux_store_register (regcache, regnum);
}
-static int
-hppa_hpux_child_can_run (void)
+/* Set hpux_major_release variable to the value retrieved from a call to
+ uname function. */
+
+static void
+set_hpux_major_release (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. */
+ struct utsname x;
+ char *p;
- return !child_suppress_run;
+ uname (&x);
+ p = strchr (x.release, '.');
+ if (p)
+ hpux_major_release = atoi (p + 1);
}
+
\f
/* Prevent warning from -Wmissing-prototypes. */
{
struct target_ops *t;
+ set_hpux_major_release ();
+
+#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);
}
projects / deliverable / binutils-gdb.git / blobdiff