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author | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
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committer | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
commit | 071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch) | |
tree | 5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/ultra3-nat.c | |
parent | 1730ec6b1848f0f32154277f788fb29f88d8475b (diff) | |
download | gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.zip gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.gz gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.bz2 |
Initial creation of sourceware repository
Diffstat (limited to 'gdb/ultra3-nat.c')
-rw-r--r-- | gdb/ultra3-nat.c | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/gdb/ultra3-nat.c b/gdb/ultra3-nat.c deleted file mode 100644 index 2b84cdd..0000000 --- a/gdb/ultra3-nat.c +++ /dev/null @@ -1,329 +0,0 @@ -/* Native-dependent code for GDB, for NYU Ultra3 running Sym1 OS. - Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc. - Contributed by David Wood (wood@nyu.edu) at New York University. - -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. */ - -#define DEBUG -#include "defs.h" -#include "frame.h" -#include "inferior.h" -#include "symtab.h" -#include "value.h" - -#include <sys/types.h> -#include <sys/param.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <fcntl.h> - -#include "gdbcore.h" - -#include <sys/file.h> -#include "gdb_stat.h" - -static void fetch_core_registers PARAMS ((char *, unsigned, int, CORE_ADDR)); - -/* Assumes support for AMD's Binary Compatibility Standard - for ptrace(). If you define ULTRA3, the ultra3 extensions to - ptrace() are used allowing the reading of more than one register - at a time. - - This file assumes KERNEL_DEBUGGING is turned off. This means - that if the user/gdb tries to read gr64-gr95 or any of the - protected special registers we silently return -1 (see the - CANNOT_STORE/FETCH_REGISTER macros). */ -#define ULTRA3 - -#if !defined (offsetof) -# define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) -#endif - -extern int errno; -struct ptrace_user pt_struct; - -/* Get all available registers from the inferior. Registers that are - * defined in REGISTER_NAMES, but not available to the user/gdb are - * supplied as -1. This may include gr64-gr95 and the protected special - * purpose registers. - */ - -void -fetch_inferior_registers (regno) - int regno; -{ - register int i,j,ret_val=0; - char buf[128]; - - if (regno != -1) { - fetch_register (regno); - return; - } - -/* Global Registers */ -#ifdef ULTRA3 - errno = 0; - ptrace (PT_READ_STRUCT, inferior_pid, - (PTRACE_ARG3_TYPE) register_addr(GR96_REGNUM,0), - (int)&pt_struct.pt_gr[0], 32*4); - if (errno != 0) { - perror_with_name ("reading global registers"); - ret_val = -1; - } else for (regno=GR96_REGNUM, j=0 ; j<32 ; regno++, j++) { - supply_register (regno, &pt_struct.pt_gr[j]); - } -#else - for (regno=GR96_REGNUM ; !ret_val && regno < GR96_REGNUM+32 ; regno++) - fetch_register(regno); -#endif - -/* Local Registers */ -#ifdef ULTRA3 - errno = 0; - ptrace (PT_READ_STRUCT, inferior_pid, - (PTRACE_ARG3_TYPE) register_addr(LR0_REGNUM,0), - (int)&pt_struct.pt_lr[0], 128*4); - if (errno != 0) { - perror_with_name ("reading local registers"); - ret_val = -1; - } else for (regno=LR0_REGNUM, j=0 ; j<128 ; regno++, j++) { - supply_register (regno, &pt_struct.pt_lr[j]); - } -#else - for (regno=LR0_REGNUM ; !ret_val && regno < LR0_REGNUM+128 ; regno++) - fetch_register(regno); -#endif - -/* Special Registers */ - fetch_register(GR1_REGNUM); - fetch_register(CPS_REGNUM); - fetch_register(PC_REGNUM); - fetch_register(NPC_REGNUM); - fetch_register(PC2_REGNUM); - fetch_register(IPC_REGNUM); - fetch_register(IPA_REGNUM); - fetch_register(IPB_REGNUM); - fetch_register(Q_REGNUM); - fetch_register(BP_REGNUM); - fetch_register(FC_REGNUM); - -/* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ - registers_fetched(); -} - -/* Store our register values back into the inferior. - * If REGNO is -1, do this for all registers. - * Otherwise, REGNO specifies which register (so we can save time). - * NOTE: Assumes AMD's binary compatibility standard. - */ - -void -store_inferior_registers (regno) - int regno; -{ - register unsigned int regaddr; - char buf[80]; - - if (regno >= 0) - { - if (CANNOT_STORE_REGISTER(regno)) - return; - regaddr = register_addr (regno, 0); - errno = 0; - ptrace (PT_WRITE_U, inferior_pid, - (PTRACE_ARG3_TYPE) regaddr, read_register(regno)); - if (errno != 0) - { - sprintf (buf, "writing register %s (#%d)", REGISTER_NAME (regno), regno); - perror_with_name (buf); - } - } - else - { -#ifdef ULTRA3 - pt_struct.pt_gr1 = read_register(GR1_REGNUM); - for (regno = GR96_REGNUM; regno < GR96_REGNUM+32; regno++) - pt_struct.pt_gr[regno] = read_register(regno); - for (regno = LR0_REGNUM; regno < LR0_REGNUM+128; regno++) - pt_struct.pt_gr[regno] = read_register(regno); - errno = 0; - ptrace (PT_WRITE_STRUCT, inferior_pid, - (PTRACE_ARG3_TYPE) register_addr(GR1_REGNUM,0), - (int)&pt_struct.pt_gr1,(1*32*128)*4); - if (errno != 0) - { - sprintf (buf, "writing all local/global registers"); - perror_with_name (buf); - } - pt_struct.pt_psr = read_register(CPS_REGNUM); - pt_struct.pt_pc0 = read_register(NPC_REGNUM); - pt_struct.pt_pc1 = read_register(PC_REGNUM); - pt_struct.pt_pc2 = read_register(PC2_REGNUM); - pt_struct.pt_ipc = read_register(IPC_REGNUM); - pt_struct.pt_ipa = read_register(IPA_REGNUM); - pt_struct.pt_ipb = read_register(IPB_REGNUM); - pt_struct.pt_q = read_register(Q_REGNUM); - pt_struct.pt_bp = read_register(BP_REGNUM); - pt_struct.pt_fc = read_register(FC_REGNUM); - errno = 0; - ptrace (PT_WRITE_STRUCT, inferior_pid, - (PTRACE_ARG3_TYPE) register_addr(CPS_REGNUM,0), - (int)&pt_struct.pt_psr,(10)*4); - if (errno != 0) - { - sprintf (buf, "writing all special registers"); - perror_with_name (buf); - return; - } -#else - store_inferior_registers(GR1_REGNUM); - for (regno=GR96_REGNUM ; regno<GR96_REGNUM+32 ; regno++) - store_inferior_registers(regno); - for (regno=LR0_REGNUM ; regno<LR0_REGNUM+128 ; regno++) - store_inferior_registers(regno); - store_inferior_registers(CPS_REGNUM); - store_inferior_registers(PC_REGNUM); - store_inferior_registers(NPC_REGNUM); - store_inferior_registers(PC2_REGNUM); - store_inferior_registers(IPC_REGNUM); - store_inferior_registers(IPA_REGNUM); - store_inferior_registers(IPB_REGNUM); - store_inferior_registers(Q_REGNUM); - store_inferior_registers(BP_REGNUM); - store_inferior_registers(FC_REGNUM); -#endif /* ULTRA3 */ - } -} - -/* - * Fetch an individual register (and supply it). - * return 0 on success, -1 on failure. - * NOTE: Assumes AMD's Binary Compatibility Standard for ptrace(). - */ -static void -fetch_register (regno) - int regno; -{ - char buf[128]; - int val; - - if (CANNOT_FETCH_REGISTER(regno)) { - val = -1; - supply_register (regno, &val); - } else { - errno = 0; - val = ptrace (PT_READ_U, inferior_pid, - (PTRACE_ARG3_TYPE) register_addr(regno,0), 0); - if (errno != 0) { - sprintf(buf,"reading register %s (#%d)",REGISTER_NAME (regno), regno); - perror_with_name (buf); - } else { - supply_register (regno, &val); - } - } -} - - -/* - * Read AMD's Binary Compatibilty Standard conforming core file. - * struct ptrace_user is the first thing in the core file - */ - -static void -fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr) - char *core_reg_sect; /* Unused in this version */ - unsigned core_reg_size; /* Unused in this version */ - int which; /* Unused in this version */ - CORE_ADDR reg_addr; /* Unused in this version */ -{ - register int regno; - int val; - char buf[4]; - - for (regno = 0 ; regno < NUM_REGS; regno++) { - if (!CANNOT_FETCH_REGISTER(regno)) { - val = bfd_seek (core_bfd, (file_ptr) register_addr (regno, 0), SEEK_SET); - if (val < 0 || (val = bfd_read (buf, sizeof buf, 1, core_bfd)) < 0) { - char * buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) + 35); - strcpy (buffer, "Reading core register "); - strcat (buffer, REGISTER_NAME (regno)); - perror_with_name (buffer); - } - supply_register (regno, buf); - } - } - - /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ - registers_fetched(); -} - - -/* - * Takes a register number as defined in tm.h via REGISTER_NAMES, and maps - * it to an offset in a struct ptrace_user defined by AMD's BCS. - * That is, it defines the mapping between gdb register numbers and items in - * a struct ptrace_user. - * A register protection scheme is set up here. If a register not - * available to the user is specified in 'regno', then an address that - * will cause ptrace() to fail is returned. - */ -CORE_ADDR -register_addr (regno,blockend) - int regno; - CORE_ADDR blockend; -{ - if ((regno >= LR0_REGNUM) && (regno < LR0_REGNUM + 128)) { - return(offsetof(struct ptrace_user,pt_lr[regno-LR0_REGNUM])); - } else if ((regno >= GR96_REGNUM) && (regno < GR96_REGNUM + 32)) { - return(offsetof(struct ptrace_user,pt_gr[regno-GR96_REGNUM])); - } else { - switch (regno) { - case GR1_REGNUM: return(offsetof(struct ptrace_user,pt_gr1)); - case CPS_REGNUM: return(offsetof(struct ptrace_user,pt_psr)); - case NPC_REGNUM: return(offsetof(struct ptrace_user,pt_pc0)); - case PC_REGNUM: return(offsetof(struct ptrace_user,pt_pc1)); - case PC2_REGNUM: return(offsetof(struct ptrace_user,pt_pc2)); - case IPC_REGNUM: return(offsetof(struct ptrace_user,pt_ipc)); - case IPA_REGNUM: return(offsetof(struct ptrace_user,pt_ipa)); - case IPB_REGNUM: return(offsetof(struct ptrace_user,pt_ipb)); - case Q_REGNUM: return(offsetof(struct ptrace_user,pt_q)); - case BP_REGNUM: return(offsetof(struct ptrace_user,pt_bp)); - case FC_REGNUM: return(offsetof(struct ptrace_user,pt_fc)); - default: - fprintf_filtered(gdb_stderr,"register_addr():Bad register %s (%d)\n", - REGISTER_NAME (regno), regno); - return(0xffffffff); /* Should make ptrace() fail */ - } - } -} - - -/* Register that we are able to handle ultra3 core file formats. - FIXME: is this really bfd_target_unknown_flavour? */ - -static struct core_fns ultra3_core_fns = -{ - bfd_target_unknown_flavour, - fetch_core_registers, - NULL -}; - -void -_initialize_core_ultra3 () -{ - add_core_fns (&ultra3_core_fns); -} |