From 38ee1de0949da9e6756b68626d26d9f508c6a388 Mon Sep 17 00:00:00 2001 From: Stu Grossman Date: Wed, 17 Nov 1993 17:40:24 +0000 Subject: [PATCH] Please CVS, let me kill this file! --- gdb/i386ly-nat.c | 282 ----------------------------------------------- 1 file changed, 282 deletions(-) diff --git a/gdb/i386ly-nat.c b/gdb/i386ly-nat.c index 5e3bcde263..e69de29bb2 100644 --- a/gdb/i386ly-nat.c +++ b/gdb/i386ly-nat.c @@ -1,282 +0,0 @@ -/* Native-dependent code for Intel 386 running LynxOS. - Copyright 1988, 1989, 1991, 1992, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include "defs.h" -#include "frame.h" -#include "inferior.h" -#include "target.h" - -#include -#include "/usr/include/sys/wait.h" - -/* these values indicate the offset of the named register in the econtext - structure */ - -#define EAX 10 -#define ECX 9 -#define EDX 8 -#define EBX 7 -#define ESP 16 -#define EBP 5 -#define ESI 4 -#define EDI 3 -#define EIP 13 -#define EFL 15 -#define CS 14 -#define SS 17 -#define DS 2 -#define ES 1 - -/* Currently these are not being used. So set them to 0 */ - -#define FS 0 -#define GS 0 - -/* this table must line up with REGISTER_NAMES in m-i386.h */ -static unsigned int regmap[] = -{ - EAX, ECX, EDX, EBX, - ESP, EBP, ESI, EDI, - EIP, EFL, CS, SS, - DS, ES, FS, GS, -}; - -/* Return the address in the core dump or inferior of register REGNO. - BLOCKEND is the address of the econtext structure */ - -static unsigned int -register_addr (regno, blockend) - int regno, blockend; -{ - if (regno < 0 || regno >= NUM_REGS) - error ("Invalid register number %d.", regno); - - return (blockend + regmap[regno] * sizeof (long)); -} - -/* Fetch one register. */ - -static void -fetch_register (regno, offset, bpid) - int regno, bpid; - unsigned int offset; -{ - unsigned int regaddr; - char buf[MAX_REGISTER_RAW_SIZE]; - char mess[128]; /* For messages */ - int i; - - regaddr = register_addr (regno, offset); - for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int)) - { - errno = 0; - *(int *) &buf[i] = ptrace (PTRACE_PEEKTHREAD, bpid, - (PTRACE_ARG3_TYPE) regaddr, 0); - regaddr += sizeof (int); - if (errno != 0) - { - sprintf (mess, "reading register %s (#%d)", reg_names[regno], regno); - perror_with_name (mess); - } - } - supply_register (regno, buf); -} - -/* 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). */ - -static void -store_register (regno, offset, bpid) - int regno, bpid; - unsigned int offset; -{ - unsigned int regaddr; - char mess[128]; - extern char registers[]; - int i; - - regaddr = register_addr (regno, offset); - for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int)) - { - errno = 0; - ptrace (PTRACE_POKEUSER, bpid, (PTRACE_ARG3_TYPE) regaddr, - *(int *) ®isters[REGISTER_BYTE (regno) + i]); - if (errno != 0) - { - sprintf (mess, "writing register number %d(%d)", regno, i); - perror_with_name (mess); - } - regaddr += sizeof(int); - } -} - -/* return an offset for use with register_addr() */ - -static unsigned int -fetch_offset (pid) - int pid; -{ - struct st_entry s; - unsigned int specpage_off, offset = (char *) &s.ecp - (char *) &s; - - errno = 0; - specpage_off = ptrace (PTRACE_THREADUSER, pid, (PTRACE_ARG3_TYPE) 0, 0); - if (errno != 0) - perror_with_name ("ptrace"); - errno = 0; - offset = ptrace (PTRACE_PEEKTHREAD, pid, (PTRACE_ARG3_TYPE) offset, 0) - - specpage_off; - if (errno != 0) - perror_with_name ("ptrace"); - return offset; -} - -/* Fetch all registers, or just one, from the child process. */ - -void -fetch_inferior_registers (regno) - int regno; -{ - unsigned int offset = fetch_offset (inferior_pid); - - if (regno == -1) - { - for (regno = 0; regno < NUM_REGS; regno++) - fetch_register (regno, offset, inferior_pid); - } - else - fetch_register (regno, offset, inferior_pid); -} - -/* Store all registers, or just one, to the child process. */ - -void -store_inferior_registers (regno) - int regno; -{ - unsigned int offset = fetch_offset (inferior_pid); - - if (regno == -1) - { - for (regno = 0; regno < NUM_REGS; regno++) - store_register (regno, offset, inferior_pid); - } - else - store_register (regno, offset, inferior_pid); -} - -/* Wait for child to do something. Return pid of child, or -1 in case - of error; store status through argument pointer STATUS. */ - -int -child_wait (pid, status) - int pid; - int *status; -{ - int save_errno; - int thread; - - while (1) - { - int sig; - - if (attach_flag) - set_sigint_trap(); /* Causes SIGINT to be passed on to the - attached process. */ - pid = wait (status); - save_errno = errno; - - if (attach_flag) - clear_sigint_trap(); - - if (pid == -1) - { - if (save_errno == EINTR) - continue; - fprintf (stderr, "Child process unexpectedly missing: %s.\n", - safe_strerror (save_errno)); - *status = 42; /* Claim it exited with signal 42 */ - return -1; - } - - if (pid != PIDGET (inferior_pid)) /* Some other process?!? */ - continue; - -/* thread = WIFTID (*status);*/ - thread = *status >> 16; - - /* Initial thread value can only be acquired via wait, so we have to - resort to this hack. */ - - if (TIDGET (inferior_pid) == 0) - { - inferior_pid = BUILDPID (inferior_pid, thread); - add_thread (inferior_pid); - } - - pid = BUILDPID (pid, thread); - - return pid; - } -} - -/* Convert a Lynx process ID to a string. Returns the string in a static - buffer. */ - -char * -i386lynx_pid_to_str (pid) - int pid; -{ - static char buf[40]; - - sprintf (buf, "process %d thread %d", PIDGET (pid), TIDGET (pid)); - - return buf; -} - -/* Extract the register values out of the core file and store - them where `read_register' will find them. - - CORE_REG_SECT points to the register values themselves, read into memory. - CORE_REG_SIZE is the size of that area. - WHICH says which set of registers we are handling (0 = int, 2 = float - on machines where they are discontiguous). - REG_ADDR is the offset from u.u_ar0 to the register values relative to - core_reg_sect. This is used with old-fashioned core files to - locate the registers in a large upage-plus-stack ".reg" section. - Original upage address X is at location core_reg_sect+x+reg_addr. - */ - -void -fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr) - char *core_reg_sect; - unsigned core_reg_size; - int which; - unsigned reg_addr; -{ - struct st_entry s; - unsigned int regno, addr; - - for (regno = 0; regno < NUM_REGS; regno++) - { - addr = register_addr (regno, (char *) &s.ec - (char *) &s); - supply_register (regno, core_reg_sect + addr); - } -}