--- /dev/null
+/* 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>
+
+#include "hppa-tdep.h"
+#include "inf-ptrace.h"
+
+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);
+}
+
+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 = PIDGET (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 % sizeof (PTRACE_TYPE_RET)) == 0);
+ 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++)
+ {
+ 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);
+ }
+ 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;
+ int i;
+
+ if (hppa_hpux_cannot_store_register (regnum))
+ return;
+
+ pid = PIDGET (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 % sizeof (PTRACE_TYPE_RET)) == 0);
+ 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));
+
+ addr += sizeof (PTRACE_TYPE_RET);
+ }
+}
+
+/* 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);
+}
+\f
+
+/* Prevent warning from -Wmissing-prototypes. */
+void _initialize_hppa_hpux_nat (void);
+
+void
+_initialize_hppa_hpux_nat (void)
+{
+ struct target_ops *t;
+
+ t = inf_ptrace_target ();
+ t->to_fetch_registers = hppa_hpux_fetch_inferior_registers;
+ t->to_store_registers = hppa_hpux_store_inferior_registers;
+ add_target (t);
+}
projects / external / binutils.git / commitdiff