gdb/config/pa/tm-hppah.h

   1 /* Parameters for execution on an HP PA-RISC machine, running HPUX, for GDB.
   2    Copyright 1991, 1992 Free Software Foundation, Inc.
   3
   4    Contributed by the Center for Software Science at the
   5    University of Utah (pa-gdb-bugs@cs.utah.edu).
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA 02111-1307, USA.  */
  23
  24 #define HPUX_SNAP1
  25 #define HPUX_SNAP2
  26
  27 /* The solib hooks are not really designed to have a list of hook
  28    and handler routines.  So until we clean up those interfaces you
  29    either get SOM shared libraries or HP's unusual PA64 ELF shared
  30    libraries, but not both.  */
  31 #ifdef GDB_TARGET_IS_HPPA_20W
  32 #include "pa64solib.h"
  33 #endif
  34
  35 #ifndef GDB_TARGET_IS_HPPA_20W
  36 #include "somsolib.h"
  37 #endif
  38
  39 /* Actually, for a PA running HPUX the kernel calls the signal handler
  40    without an intermediate trampoline.  Luckily the kernel always sets
  41    the return pointer for the signal handler to point to _sigreturn.  */
  42 #define IN_SIGTRAMP(pc, name) (name && STREQ ("_sigreturn", name))
  43
  44 /* For HPUX:
  45
  46    The signal context structure pointer is always saved at the base
  47    of the frame which "calls" the signal handler.  We only want to find
  48    the hardware save state structure, which lives 10 32bit words into
  49    sigcontext structure.
  50
  51    Within the hardware save state structure, registers are found in the
  52    same order as the register numbers in GDB.
  53
  54    At one time we peeked at %r31 rather than the PC queues to determine
  55    what instruction took the fault.  This was done on purpose, but I don't
  56    remember why.  Looking at the PC queues is really the right way, and
  57    I don't remember why that didn't work when this code was originally
  58    written.  */
  59
  60 #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \
  61 { \
  62   *(TMP) = read_memory_integer ((FRAME)->frame + (43 * 4) , 4); \
  63 }
  64
  65 #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \
  66 { \
  67   *(TMP) = read_memory_integer ((FRAME)->frame + (40 * 4), 4); \
  68 }
  69
  70 #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \
  71 { \
  72   int i; \
  73   CORE_ADDR TMP; \
  74   TMP = (FRAME)->frame + (10 * 4); \
  75   for (i = 0; i < NUM_REGS; i++) \
  76     { \
  77       if (i == SP_REGNUM) \
  78         (FSR)->regs[SP_REGNUM] = read_memory_integer (TMP + SP_REGNUM * 4, 4); \
  79       else \
  80         (FSR)->regs[i] = TMP + i * 4; \
  81     } \
  82 }
  83
  84 /* For HP-UX on PA-RISC we have an implementation
  85    for the exception handling target op (in hppa-tdep.c) */
  86 #define CHILD_ENABLE_EXCEPTION_CALLBACK
  87 #define CHILD_GET_CURRENT_EXCEPTION_EVENT
  88
  89 /* Mostly it's common to all HPPA's.  */
  90 #include "pa/tm-hppa.h"