eee22bf873
* 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.
357 lines
8.7 KiB
C
357 lines
8.7 KiB
C
/* Native-dependent code for PA-RISC HP-UX.
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Copyright 2004 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., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, 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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/* HP-UX 10.20 has a different name than HP-UX 11.00 and later.
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Apparently, the intended usage changed. Unfortunately HP didn't
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care about backwards compatibility. */
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#ifdef ss_tlsp
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#define ss_mpsfu_high ss_tlsp
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#endif
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int child_suppress_run = 0; /* Non-zero if we should pretend not to be
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a runnable target. */
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static int hppa_hpux_save_state_offset[] =
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{
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ssoff(ss_flags),
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ssoff(ss_narrow.ss_gr1),
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ssoff(ss_narrow.ss_rp),
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ssoff(ss_narrow.ss_gr3),
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ssoff(ss_narrow.ss_gr4),
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ssoff(ss_narrow.ss_gr5),
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ssoff(ss_narrow.ss_gr6),
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ssoff(ss_narrow.ss_gr7),
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ssoff(ss_narrow.ss_gr8),
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ssoff(ss_narrow.ss_gr9),
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ssoff(ss_narrow.ss_gr10),
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ssoff(ss_narrow.ss_gr11),
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ssoff(ss_narrow.ss_gr12),
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ssoff(ss_narrow.ss_gr13),
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ssoff(ss_narrow.ss_gr14),
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ssoff(ss_narrow.ss_gr15),
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ssoff(ss_narrow.ss_gr16),
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ssoff(ss_narrow.ss_gr17),
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ssoff(ss_narrow.ss_gr18),
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ssoff(ss_narrow.ss_gr19),
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ssoff(ss_narrow.ss_gr20),
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ssoff(ss_narrow.ss_gr21),
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ssoff(ss_narrow.ss_gr22),
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ssoff(ss_narrow.ss_arg3),
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ssoff(ss_narrow.ss_arg2),
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ssoff(ss_narrow.ss_arg1),
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ssoff(ss_narrow.ss_arg0),
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ssoff(ss_narrow.ss_dp),
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ssoff(ss_narrow.ss_ret0),
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ssoff(ss_narrow.ss_ret1),
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ssoff(ss_narrow.ss_sp),
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ssoff(ss_narrow.ss_gr31),
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ssoff(ss_narrow.ss_cr11),
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ssoff(ss_narrow.ss_pcoq_head),
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ssoff(ss_narrow.ss_pcsq_head),
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ssoff(ss_narrow.ss_pcoq_tail),
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ssoff(ss_narrow.ss_pcsq_tail),
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ssoff(ss_narrow.ss_cr15),
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ssoff(ss_narrow.ss_cr19),
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ssoff(ss_narrow.ss_cr20),
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ssoff(ss_narrow.ss_cr21),
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ssoff(ss_narrow.ss_cr22),
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ssoff(ss_narrow.ss_cpustate),
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ssoff(ss_narrow.ss_sr4),
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ssoff(ss_narrow.ss_sr0),
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ssoff(ss_narrow.ss_sr1),
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ssoff(ss_narrow.ss_sr2),
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ssoff(ss_narrow.ss_sr3),
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ssoff(ss_narrow.ss_sr5),
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ssoff(ss_narrow.ss_sr6),
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ssoff(ss_narrow.ss_sr7),
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ssoff(ss_narrow.ss_cr0),
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ssoff(ss_narrow.ss_cr8),
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ssoff(ss_narrow.ss_cr9),
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ssoff(ss_narrow.ss_cr10),
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ssoff(ss_narrow.ss_cr12),
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ssoff(ss_narrow.ss_cr13),
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ssoff(ss_narrow.ss_cr24),
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ssoff(ss_narrow.ss_cr25),
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ssoff(ss_narrow.ss_cr26),
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ssoff(ss_narrow.ss_mpsfu_high),
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ssoff(ss_narrow.ss_mpsfu_low),
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ssoff(ss_narrow.ss_mpsfu_ovflo),
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ssoff(ss_pad),
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ssoff(ss_frstat),
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ssoff(ss_frexcp1),
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ssoff(ss_frexcp2),
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ssoff(ss_frexcp3),
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ssoff(ss_frexcp4),
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ssoff(ss_frexcp5),
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ssoff(ss_frexcp6),
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ssoff(ss_frexcp7),
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ssoff(ss_fr4_hi),
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ssoff(ss_fr4_lo),
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ssoff(ss_fr5_hi),
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ssoff(ss_fr5_lo),
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ssoff(ss_fr6_hi),
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ssoff(ss_fr6_lo),
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ssoff(ss_fr7_hi),
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ssoff(ss_fr7_lo),
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ssoff(ss_fr8_hi),
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ssoff(ss_fr8_lo),
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ssoff(ss_fr9_hi),
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ssoff(ss_fr9_lo),
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ssoff(ss_fr10_hi),
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ssoff(ss_fr10_lo),
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ssoff(ss_fr11_hi),
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ssoff(ss_fr11_lo),
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ssoff(ss_fr12_hi),
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ssoff(ss_fr12_lo),
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ssoff(ss_fr13_hi),
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ssoff(ss_fr13_lo),
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ssoff(ss_fr14_hi),
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ssoff(ss_fr14_lo),
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ssoff(ss_fr15_hi),
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ssoff(ss_fr15_lo),
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ssoff(ss_fr16_hi),
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ssoff(ss_fr16_lo),
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ssoff(ss_fr17_hi),
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ssoff(ss_fr17_lo),
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ssoff(ss_fr18_hi),
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ssoff(ss_fr18_lo),
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ssoff(ss_fr19_hi),
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ssoff(ss_fr19_lo),
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ssoff(ss_fr20_hi),
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ssoff(ss_fr20_lo),
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ssoff(ss_fr21_hi),
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ssoff(ss_fr21_lo),
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ssoff(ss_fr22_hi),
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ssoff(ss_fr22_lo),
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ssoff(ss_fr23_hi),
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ssoff(ss_fr23_lo),
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ssoff(ss_fr24_hi),
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ssoff(ss_fr24_lo),
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ssoff(ss_fr25_hi),
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ssoff(ss_fr25_lo),
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ssoff(ss_fr26_hi),
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ssoff(ss_fr26_lo),
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ssoff(ss_fr27_hi),
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ssoff(ss_fr27_lo),
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ssoff(ss_fr28_hi),
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ssoff(ss_fr28_lo),
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ssoff(ss_fr29_hi),
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ssoff(ss_fr29_lo),
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ssoff(ss_fr30_hi),
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ssoff(ss_fr30_lo),
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ssoff(ss_fr31_hi),
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ssoff(ss_fr31_lo)
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};
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static int
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hppa_hpux_cannot_fetch_register (int regnum)
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{
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gdb_assert (regnum >= 0 && regnum < NUM_REGS);
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return (regnum >= ARRAY_SIZE(hppa_hpux_save_state_offset));
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}
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static int
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hppa_hpux_cannot_store_register (int regnum)
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{
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return hppa_hpux_cannot_fetch_register (regnum);
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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 (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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if (hppa_hpux_cannot_fetch_register (regnum))
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{
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regcache_raw_supply (current_regcache, regnum, NULL);
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return;
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}
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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[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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regcache_raw_supply (current_regcache, regnum, buf);
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}
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static void
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hppa_hpux_fetch_inferior_registers (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 (regnum);
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else
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hppa_hpux_fetch_register (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 (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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if (hppa_hpux_cannot_store_register (regnum))
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return;
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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[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 (current_regcache, regnum, buf);
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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 (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 (regnum);
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else
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hppa_hpux_store_register (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 process
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structure atop that provided here. hpux-thread.c does this because
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of the HP-UX user-mode level thread model. */
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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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