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Diffstat (limited to 'gdb/remote-multi.shar')
| -rwxr-xr-x | gdb/remote-multi.shar | 1313 |
1 files changed, 0 insertions, 1313 deletions
diff --git a/gdb/remote-multi.shar b/gdb/remote-multi.shar deleted file mode 100755 index 86c9cf0217..0000000000 --- a/gdb/remote-multi.shar +++ /dev/null @@ -1,1313 +0,0 @@ -#!/bin/sh -# This is a shell archive. -# Run the file through sh to extract its contents. -# shar: Shell Archiver -# Run the following text with /bin/sh to create: -# Remote_Makefile -# remote_gutils.c -# remote_inflow.c -# remote_server.c -# remote_utils.c -# This archive created: Fri Jun 23 17:06:55 1989 -cat << \SHAR_EOF > Remote_Makefile -# Makefile for the remote server for GDB, the GNU debugger. -# Copyright (C) 1986, 1989 Free Software Foundation, Inc. -# -# This file is part of GDB. -# -# GDB 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 1, or (at your option) -# any later version. -# -# GDB 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 GDB; see the file COPYING. If not, write to -# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -CFLAGS = -g -CC = cc - -SERVER = remote_server.o\ - remote_inflow.o\ - remote_utils.o\ - remote_gutils.o - -prog : $(SERVER) - $(CC) -g -o serve $(SERVER) -SHAR_EOF -cat << \SHAR_EOF > remote_gutils.c -/* General utility routines for the remote server for GDB, the GNU debugger. - Copyright (C) 1986, 1989 Free Software Foundation, Inc. - -This file is part of GDB. - -GDB 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 1, or (at your option) -any later version. - -GDB 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 GDB; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdio.h> -#include <sys/ioctl.h> -#include "defs.h" - -void error (); -void fatal (); - -/* Chain of cleanup actions established with make_cleanup, - to be executed if an error happens. */ - -static struct cleanup *cleanup_chain; - -/* Nonzero means a quit has been requested. */ - -int quit_flag; - -/* Nonzero means quit immediately if Control-C is typed now, - rather than waiting until QUIT is executed. */ - -int immediate_quit; - -/* Add a new cleanup to the cleanup_chain, - and return the previous chain pointer - to be passed later to do_cleanups or discard_cleanups. - Args are FUNCTION to clean up with, and ARG to pass to it. */ - -struct cleanup * -make_cleanup (function, arg) - void (*function) (); - int arg; -{ - register struct cleanup *new - = (struct cleanup *) xmalloc (sizeof (struct cleanup)); - register struct cleanup *old_chain = cleanup_chain; - - new->next = cleanup_chain; - new->function = function; - new->arg = arg; - cleanup_chain = new; - - return old_chain; -} - -/* Discard cleanups and do the actions they describe - until we get back to the point OLD_CHAIN in the cleanup_chain. */ - -void -do_cleanups (old_chain) - register struct cleanup *old_chain; -{ - register struct cleanup *ptr; - while ((ptr = cleanup_chain) != old_chain) - { - (*ptr->function) (ptr->arg); - cleanup_chain = ptr->next; - free (ptr); - } -} - -/* Discard cleanups, not doing the actions they describe, - until we get back to the point OLD_CHAIN in the cleanup_chain. */ - -void -discard_cleanups (old_chain) - register struct cleanup *old_chain; -{ - register struct cleanup *ptr; - while ((ptr = cleanup_chain) != old_chain) - { - cleanup_chain = ptr->next; - free (ptr); - } -} - -/* This function is useful for cleanups. - Do - - foo = xmalloc (...); - old_chain = make_cleanup (free_current_contents, &foo); - - to arrange to free the object thus allocated. */ - -void -free_current_contents (location) - char **location; -{ - free (*location); -} - -/* Generally useful subroutines used throughout the program. */ - -/* Like malloc but get error if no storage available. */ - -char * -xmalloc (size) - long size; -{ - register char *val = (char *) malloc (size); - if (!val) - fatal ("virtual memory exhausted.", 0); - return val; -} - -/* Like realloc but get error if no storage available. */ - -char * -xrealloc (ptr, size) - char *ptr; - long size; -{ - register char *val = (char *) realloc (ptr, size); - if (!val) - fatal ("virtual memory exhausted.", 0); - return val; -} - -/* Print the system error message for errno, and also mention STRING - as the file name for which the error was encountered. - Then return to command level. */ - -void -perror_with_name (string) - char *string; -{ - extern int sys_nerr; - extern char *sys_errlist[]; - extern int errno; - char *err; - char *combined; - - if (errno < sys_nerr) - err = sys_errlist[errno]; - else - err = "unknown error"; - - combined = (char *) alloca (strlen (err) + strlen (string) + 3); - strcpy (combined, string); - strcat (combined, ": "); - strcat (combined, err); - - error ("%s.", combined); -} - -/* Print the system error message for ERRCODE, and also mention STRING - as the file name for which the error was encountered. */ - -void -print_sys_errmsg (string, errcode) - char *string; - int errcode; -{ - extern int sys_nerr; - extern char *sys_errlist[]; - char *err; - char *combined; - - if (errcode < sys_nerr) - err = sys_errlist[errcode]; - else - err = "unknown error"; - - combined = (char *) alloca (strlen (err) + strlen (string) + 3); - strcpy (combined, string); - strcat (combined, ": "); - strcat (combined, err); - - printf ("%s.\n", combined); -} - -void -quit () -{ - fflush (stdout); - ioctl (fileno (stdout), TIOCFLUSH, 0); - error ("Quit"); -} - -/* Control C comes here */ - -void -request_quit () -{ - quit_flag = 1; - if (immediate_quit) - quit (); -} - -/* Print an error message and return to command level. - STRING is the error message, used as a fprintf string, - and ARG is passed as an argument to it. */ - -void -error (string, arg1, arg2, arg3) - char *string; - int arg1, arg2, arg3; -{ - fflush (stdout); - fprintf (stderr, string, arg1, arg2, arg3); - fprintf (stderr, "\n"); - /************return_to_top_level ();************/ -} - -/* Print an error message and exit reporting failure. - This is for a error that we cannot continue from. - STRING and ARG are passed to fprintf. */ - -void -fatal (string, arg) - char *string; - int arg; -{ - fprintf (stderr, "gdb: "); - fprintf (stderr, string, arg); - fprintf (stderr, "\n"); - exit (1); -} - -/* Make a copy of the string at PTR with SIZE characters - (and add a null character at the end in the copy). - Uses malloc to get the space. Returns the address of the copy. */ - -char * -savestring (ptr, size) - char *ptr; - int size; -{ - register char *p = (char *) xmalloc (size + 1); - bcopy (ptr, p, size); - p[size] = 0; - return p; -} - -char * -concat (s1, s2, s3) - char *s1, *s2, *s3; -{ - register int len = strlen (s1) + strlen (s2) + strlen (s3) + 1; - register char *val = (char *) xmalloc (len); - strcpy (val, s1); - strcat (val, s2); - strcat (val, s3); - return val; -} - -void -print_spaces (n, file) - register int n; - register FILE *file; -{ - while (n-- > 0) - fputc (' ', file); -} - -/* Ask user a y-or-n question and return 1 iff answer is yes. - Takes three args which are given to printf to print the question. - The first, a control string, should end in "? ". - It should not say how to answer, because we do that. */ - -int -query (ctlstr, arg1, arg2) - char *ctlstr; -{ - register int answer; - - /* Automatically answer "yes" if input is not from a terminal. */ - /***********if (!input_from_terminal_p ()) - return 1; *************************/ - - while (1) - { - printf (ctlstr, arg1, arg2); - printf ("(y or n) "); - fflush (stdout); - answer = fgetc (stdin); - clearerr (stdin); /* in case of C-d */ - if (answer != '\n') - while (fgetc (stdin) != '\n') clearerr (stdin); - if (answer >= 'a') - answer -= 040; - if (answer == 'Y') - return 1; - if (answer == 'N') - return 0; - printf ("Please answer y or n.\n"); - } -} - -/* Parse a C escape sequence. STRING_PTR points to a variable - containing a pointer to the string to parse. That pointer - is updated past the characters we use. The value of the - escape sequence is returned. - - A negative value means the sequence \ newline was seen, - which is supposed to be equivalent to nothing at all. - - If \ is followed by a null character, we return a negative - value and leave the string pointer pointing at the null character. - - If \ is followed by 000, we return 0 and leave the string pointer - after the zeros. A value of 0 does not mean end of string. */ - -int -parse_escape (string_ptr) - char **string_ptr; -{ - register int c = *(*string_ptr)++; - switch (c) - { - case 'a': - return '\a'; - case 'b': - return '\b'; - case 'e': - return 033; - case 'f': - return '\f'; - case 'n': - return '\n'; - case 'r': - return '\r'; - case 't': - return '\t'; - case 'v': - return '\v'; - case '\n': - return -2; - case 0: - (*string_ptr)--; - return 0; - case '^': - c = *(*string_ptr)++; - if (c == '\\') - c = parse_escape (string_ptr); - if (c == '?') - return 0177; - return (c & 0200) | (c & 037); - - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - { - register int i = c - '0'; - register int count = 0; - while (++count < 3) - { - if ((c = *(*string_ptr)++) >= '0' && c <= '7') - { - i *= 8; - i += c - '0'; - } - else - { - (*string_ptr)--; - break; - } - } - return i; - } - default: - return c; - } -} - -void -printchar (ch, stream) - unsigned char ch; - FILE *stream; -{ - register int c = ch; - if (c < 040 || c >= 0177) - { - if (c == '\n') - fprintf (stream, "\\n"); - else if (c == '\b') - fprintf (stream, "\\b"); - else if (c == '\t') - fprintf (stream, "\\t"); - else if (c == '\f') - fprintf (stream, "\\f"); - else if (c == '\r') - fprintf (stream, "\\r"); - else if (c == 033) - fprintf (stream, "\\e"); - else if (c == '\a') - fprintf (stream, "\\a"); - else - fprintf (stream, "\\%03o", c); - } - else - { - if (c == '\\' || c == '"' || c == '\'') - fputc ('\\', stream); - fputc (c, stream); - } -} -SHAR_EOF -cat << \SHAR_EOF > remote_inflow.c -/* Low level interface to ptrace, for GDB when running under Unix. - Copyright (C) 1986, 1987 Free Software Foundation, Inc. -*/ - -#include "defs.h" -#include "param.h" -#include "wait.h" -#include "frame.h" -#include "inferior.h" -/*************************** -#include "initialize.h" -****************************/ - -#include <stdio.h> -#include <sys/param.h> -#include <sys/dir.h> -#include <sys/user.h> -#include <signal.h> -#include <sys/ioctl.h> -#include <sgtty.h> -#include <fcntl.h> - -/***************Begin MY defs*********************/ -int quit_flag = 0; -char registers[REGISTER_BYTES]; - -/* Index within `registers' of the first byte of the space for - register N. */ - - -char buf2[MAX_REGISTER_RAW_SIZE]; -/***************End MY defs*********************/ - -#ifdef NEW_SUN_PTRACE -#include <sys/ptrace.h> -#include <machine/reg.h> -#endif - -extern char **environ; -extern int errno; -extern int inferior_pid; -void error(), quit(), perror_with_name(); -int query(); -void supply_register(), write_register(); -CORE_ADDR read_register(); - -/* Nonzero if we are debugging an attached outside process - rather than an inferior. */ - - -/* Start an inferior process and returns its pid. - ALLARGS is a vector of program-name and args. - ENV is the environment vector to pass. */ - -int -create_inferior (allargs, env) - char **allargs; - char **env; -{ - int pid; - extern int sys_nerr; - extern char *sys_errlist[]; - extern int errno; - - /* exec is said to fail if the executable is open. */ - /****************close_exec_file ();*****************/ - - pid = vfork (); - if (pid < 0) - perror_with_name ("vfork"); - - if (pid == 0) - { - /* Run inferior in a separate process group. */ - setpgrp (getpid (), getpid ()); - -/* Not needed on Sun, at least, and loses there - because it clobbers the superior. */ -/*??? signal (SIGQUIT, SIG_DFL); - signal (SIGINT, SIG_DFL); */ - - errno = 0; - ptrace (0); - - execle ("/bin/sh", "sh", "-c", allargs, 0, env); - - fprintf (stderr, "Cannot exec /bin/sh: %s.\n", - errno < sys_nerr ? sys_errlist[errno] : "unknown error"); - fflush (stderr); - _exit (0177); - } - return pid; -} - -/* Kill the inferior process. Make us have no inferior. */ - -kill_inferior () -{ - if (inferior_pid == 0) - return; - ptrace (8, inferior_pid, 0, 0); - wait (0); - /*************inferior_died ();****VK**************/ -} - -/* Resume execution of the inferior process. - If STEP is nonzero, single-step it. - If SIGNAL is nonzero, give it that signal. */ - -unsigned char -resume (step, signal,status) - int step; - int signal; - char *status; -{ - int pid ; - WAITTYPE w; - - errno = 0; - ptrace (step ? 9 : 7, inferior_pid, 1, signal); - if (errno) - perror_with_name ("ptrace"); - pid = wait(&w); - if(pid != inferior_pid) - perror_with_name ("wait"); - - if(WIFEXITED(w)) - { - printf("\nchild exited with retcode = %x \n",WRETCODE(w)); - *status = 'E'; - return((unsigned char) WRETCODE(w)); - } - else if(!WIFSTOPPED(w)) - { - printf("\nchild did terminated with signal = %x \n",WTERMSIG(w)); - *status = 'T'; - return((unsigned char) WTERMSIG(w)); - } - else - { - printf("\nchild stopped with signal = %x \n",WSTOPSIG(w)); - *status = 'S'; - return((unsigned char) WSTOPSIG(w)); - } - -} - - -#ifdef NEW_SUN_PTRACE - -void -fetch_inferior_registers () -{ - struct regs inferior_registers; - struct fp_status inferior_fp_registers; - extern char registers[]; - - ptrace (PTRACE_GETREGS, inferior_pid, &inferior_registers); - if (errno) - perror_with_name ("ptrace"); - /**********debugging begin **********/ - print_some_registers(&inferior_registers); - /**********debugging end **********/ - ptrace (PTRACE_GETFPREGS, inferior_pid, &inferior_fp_registers); - if (errno) - perror_with_name ("ptrace"); - - bcopy (&inferior_registers, registers, 16 * 4); - bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], - sizeof inferior_fp_registers.fps_regs); - *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; - *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc; - bcopy (&inferior_fp_registers.fps_control, - ®isters[REGISTER_BYTE (FPC_REGNUM)], - sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs); -} - -/* 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). */ - -store_inferior_registers (regno) - int regno; -{ - struct regs inferior_registers; - struct fp_status inferior_fp_registers; - extern char registers[]; - - bcopy (registers, &inferior_registers, 16 * 4); - bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, - sizeof inferior_fp_registers.fps_regs); - inferior_registers.r_ps = *(int *)®isters[REGISTER_BYTE (PS_REGNUM)]; - inferior_registers.r_pc = *(int *)®isters[REGISTER_BYTE (PC_REGNUM)]; - bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)], - &inferior_fp_registers.fps_control, - sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs); - - ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers); - if (errno) - perror_with_name ("ptrace"); - ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers); - if (errno) - perror_with_name ("ptrace"); -} - -#endif /* not NEW_SUN_PTRACE */ - - -/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory - in the NEW_SUN_PTRACE case. - It ought to be straightforward. But it appears that writing did - not write the data that I specified. I cannot understand where - it got the data that it actually did write. */ - -/* Copy LEN bytes from inferior's memory starting at MEMADDR - to debugger memory starting at MYADDR. */ - -read_inferior_memory (memaddr, myaddr, len) - CORE_ADDR memaddr; - char *myaddr; - int len; -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & - sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - - /* Read all the longwords */ - for (i = 0; i < count; i++, addr += sizeof (int)) - { - buffer[i] = ptrace (1, inferior_pid, addr, 0); - } - - /* Copy appropriate bytes out of the buffer. */ - bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); -} - -/* Copy LEN bytes of data from debugger memory at MYADDR - to inferior's memory at MEMADDR. - On failure (cannot write the inferior) - returns the value of errno. */ - -int -write_inferior_memory (memaddr, myaddr, len) - CORE_ADDR memaddr; - char *myaddr; - int len; -{ - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & - sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register int *buffer = (int *) alloca (count * sizeof (int)); - extern int errno; - - /* Fill start and end extra bytes of buffer with existing memory data. */ - - buffer[0] = ptrace (1, inferior_pid, addr, 0); - - if (count > 1) - { - buffer[count - 1] - = ptrace (1, inferior_pid, - addr + (count - 1) * sizeof (int), 0); - } - - /* Copy data to be written over corresponding part of buffer */ - - bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); - - /* Write the entire buffer. */ - - for (i = 0; i < count; i++, addr += sizeof (int)) - { - errno = 0; - ptrace (4, inferior_pid, addr, buffer[i]); - if (errno) - return errno; - } - - return 0; -} - -void -try_writing_regs_command () -{ - register int i; - register int value; - extern int errno; - - if (inferior_pid == 0) - error ("There is no inferior process now."); - - fetch_inferior_registers(); - for (i = 0;i<18 ; i ++) - { - QUIT; - errno = 0; - value = read_register(i); - write_register ( i, value); - if (errno == 0) - { - printf (" Succeeded with register %d; value 0x%x (%d).\n", - i, value, value); - } - else - printf (" Failed with register %d.\n", i); - } -} - -void -initialize () -{ - - inferior_pid = 0; - - -} - - -/* Return the contents of register REGNO, - regarding it as an integer. */ - -CORE_ADDR -read_register (regno) - int regno; -{ - /* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */ - return *(int *) ®isters[REGISTER_BYTE (regno)]; -} - -/* Store VALUE in the register number REGNO, regarded as an integer. */ - -void -write_register (regno, val) - int regno, val; -{ - /* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */ - *(int *) ®isters[REGISTER_BYTE (regno)] = val; - - if (have_inferior_p ()) - store_inferior_registers (regno); -} - - -int -have_inferior_p () -{ - return inferior_pid != 0; -} - -print_some_registers(regs) -int regs[]; -{ - register int i; - for (i = 0; i < 18; i++) { - printf("reg[%d] = %x\n", i, regs[i]); - } -} - -SHAR_EOF -cat << \SHAR_EOF > remote_server.c -/* Main code for remote server for GDB, the GNU Debugger. - Copyright (C) 1989 Free Software Foundation, Inc. - -This file is part of GDB. - -GDB 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 1, or (at your option) -any later version. - -GDB 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 GDB; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include "param.h" -#include <stdio.h> - -void read_inferior_memory(), fetch_inferior_registers(); -unsigned char resume(); -void kill_inferior(); -void initialize(), try_writing_regs_command(); -int create_inferior(), read_register(); - -extern char registers[]; -int inferior_pid; -extern char **environ; - -/* Descriptor for I/O to remote machine. */ -int remote_desc; -int kiodebug = 0; -int remote_debugging; - -void remote_send (); -void putpkt (); -void getpkt (); -void remote_open(); -void write_ok(); -void write_enn(); -void convert_ascii_to_int(); -void convert_int_to_ascii(); -void prepare_resume_reply(); -void decode_m_packet(); -void decode_M_packet(); - - -main(argc,argv) -int argc; char *argv[]; -{ - char ch,status, own_buf[2000], mem_buf[2000]; - int i=0; - unsigned char signal; - unsigned int mem_addr, len; - - initialize(); - printf("\nwill open serial link\n"); - remote_open("/dev/ttya",0); - - if(argc < 2) - { - printf("Enter name of program to be run with command line args\n"); - gets(own_buf); - inferior_pid = create_inferior(own_buf,environ); - printf("\nProcess %s created; pid = %d\n",own_buf,inferior_pid); - } - else - { - inferior_pid = create_inferior(argv[1],environ); - printf("\nProcess %s created; pid = %d\n",argv[1],inferior_pid); - } - - do { - getpkt(own_buf); - printf("\nPacket received is>:%s\n",own_buf); - i = 0; - ch = own_buf[i++]; - switch (ch) { - case 'h': /**********This is only for tweaking the gdb+ program *******/ - signal = resume(1,0,&status); - prepare_resume_reply(own_buf,status,signal); - break; - /*************end tweak*************************************/ - - case 'g': fetch_inferior_registers(); - convert_int_to_ascii(registers,own_buf,REGISTER_BYTES); - break; - case 'G': convert_ascii_to_int(&own_buf[1],registers,REGISTER_BYTES); - if(store_inferior_registers(-1)==0) - write_ok(own_buf); - else - write_enn(own_buf); - break; - case 'm': decode_m_packet(&own_buf[1],&mem_addr,&len); - read_inferior_memory(mem_addr,mem_buf,len); - convert_int_to_ascii(mem_buf,own_buf,len); - break; - case 'M': decode_M_packet(&own_buf[1],&mem_addr,&len,mem_buf); - if(write_inferior_memory(mem_addr,mem_buf,len)==0) - write_ok(own_buf); - else - write_enn(own_buf); - break; - case 'c': signal = resume(0,0,&status); - printf("\nSignal received is >: %0x \n",signal); - prepare_resume_reply(own_buf,status,signal); - break; - case 's': signal = resume(1,0,&status); - prepare_resume_reply(own_buf,status,signal); - break; - case 'k': kill_inferior(); - sprintf(own_buf,"q"); - putpkt(own_buf); - printf("\nObtained kill request...terminating\n"); - close(remote_desc); - exit(0); - case 't': try_writing_regs_command(); - own_buf[0] = '\0'; - break; - default : printf("\nUnknown option chosen by master\n"); - write_enn(own_buf); - break; - } - - putpkt(own_buf); - } while(1) ; - - close(remote_desc); - /** now get out of here**/ - printf("\nFinished reading data from serial link - Bye!\n"); - exit(0); - -} - -SHAR_EOF -cat << \SHAR_EOF > remote_utils.c -/* Remote utility routines for the remote server for GDB, the GNU debugger. - Copyright (C) 1986, 1989 Free Software Foundation, Inc. - -This file is part of GDB. - -GDB 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 1, or (at your option) -any later version. - -GDB 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 GDB; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include "param.h" -#include <stdio.h> -#include <signal.h> -#include <sys/wait.h> -#include <sys/ioctl.h> -#include <a.out.h> -#include <sys/file.h> -#include <sgtty.h> - -extern int remote_desc; -extern int remote_debugging; -extern int kiodebug; - -void remote_open(); -void remote_send(); -void putpkt(); -void getpkt(); - -void write_ok(); -void write_enn(); -void convert_ascii_to_int(); -void convert_int_to_ascii(); -void prepare_resume_reply(); - -/* Open a connection to a remote debugger. - NAME is the filename used for communication. */ - -void -remote_open (name, from_tty) - char *name; - int from_tty; -{ - struct sgttyb sg; - - remote_debugging = 0; - - remote_desc = open (name, O_RDWR); - if (remote_desc < 0) - printf("\ncould not open remote device\n"); - - ioctl (remote_desc, TIOCGETP, &sg); - sg.sg_flags = RAW; - ioctl (remote_desc, TIOCSETP, &sg); - - if (from_tty) - printf ("Remote debugging using %s\n", name); - remote_debugging = 1; -} - -/* Convert hex digit A to a number. */ - -static int -fromhex (a) - int a; -{ - if (a >= '0' && a <= '9') - return a - '0'; - else if (a >= 'a' && a <= 'f') - return a - 'a' + 10; - else - perror ("Reply contains invalid hex digit"); -} - -/* Convert number NIB to a hex digit. */ - -static int -tohex (nib) - int nib; -{ - if (nib < 10) - return '0'+nib; - else - return 'a'+nib-10; -} - -/* Send the command in BUF to the remote machine, - and read the reply into BUF. - Report an error if we get an error reply. */ - -void -remote_send (buf) - char *buf; -{ - putpkt (buf); - getpkt (buf); - - if (buf[0] == 'E') - perror ("Remote failure reply: %s", buf); -} - -/* Send a packet to the remote machine, with error checking. - The data of the packet is in BUF. */ - -void -putpkt (buf) - char *buf; -{ - int i; - unsigned char csum = 0; - char buf2[500]; - char buf3[1]; - int cnt = strlen (buf); - char *p; - - if (kiodebug) - fprintf (stderr, "Sending packet: %s\n", buf); - - /* Copy the packet into buffer BUF2, encapsulating it - and giving it a checksum. */ - - p = buf2; - *p++ = '$'; - - for (i = 0; i < cnt; i++) - { - csum += buf[i]; - *p++ = buf[i]; - } - *p++ = '#'; - *p++ = tohex ((csum >> 4) & 0xf); - *p++ = tohex (csum & 0xf); - - /* Send it over and over until we get a positive ack. */ - - do { - write (remote_desc, buf2, p - buf2); - read (remote_desc, buf3, 1); - } while (buf3[0] != '+'); -} - -static int -readchar () -{ - char buf[1]; - while (read (remote_desc, buf, 1) != 1) ; - return buf[0] & 0x7f; -} - -/* Read a packet from the remote machine, with error checking, - and store it in BUF. */ - -void -getpkt (buf) - char *buf; -{ - char *bp; - unsigned char csum, c, c1, c2; - extern kiodebug; - - while (1) - { - csum = 0; - while ((c = readchar()) != '$'); - - bp = buf; - while (1) - { - c = readchar (); - if (c == '#') - break; - *bp++ = c; - csum += c; - } - *bp = 0; - - c1 = fromhex (readchar ()); - c2 = fromhex (readchar ()); - if (csum == (c1 << 4) + c2) - break; - - printf ("Bad checksum, sentsum=0x%x, csum=0x%x, buf=%s\n", - (c1 << 4) + c2, csum, buf); - write (remote_desc, "-", 1); - } - - write (remote_desc, "+", 1); - - if (kiodebug) - fprintf (stderr,"Packet received :%s\n", buf); -} - - -void -write_ok(buf) - char *buf; -{ - buf[0] = 'O'; - buf[1] = 'k'; - buf[2] = '\0'; -} - -void -write_enn(buf) - char *buf; -{ - buf[0] = 'E'; - buf[1] = 'N'; - buf[2] = 'N'; - buf[3] = '\0'; -} - -void -convert_int_to_ascii(from,to,n) -char *from, *to; int n; -{ - int nib ; - char ch; - while( n-- ) - { - ch = *from++; - nib = ((ch & 0xf0) >> 4)& 0x0f; - *to++ = tohex(nib); - nib = ch & 0x0f; - *to++ = tohex(nib); - } - *to++ = 0; -} - - -void -convert_ascii_to_int(from,to,n) -char *from, *to; int n; -{ - int nib1,nib2 ; - while( n-- ) - { - nib1 = fromhex(*from++); - nib2 = fromhex(*from++); - *to++ = (((nib1 & 0x0f)<< 4)& 0xf0) | (nib2 & 0x0f); - } -} - -void -prepare_resume_reply(buf,status,signal) -char *buf ,status; -unsigned char signal; -{ - int nib; - char ch; - - *buf++ = 'S'; - *buf++ = status; - nib = ((signal & 0xf0) >> 4) ; - *buf++ = tohex(nib); - nib = signal & 0x0f; - *buf++ = tohex(nib); - *buf++ = 0; -} - -void -decode_m_packet(from,mem_addr_ptr,len_ptr) -char *from; -unsigned int *mem_addr_ptr, *len_ptr; -{ - int i = 0, j = 0 ; - char ch; - *mem_addr_ptr = *len_ptr = 0; - /************debugging begin************/ - printf("\nIn decode_m_packet"); - /************debugging end************/ - - while((ch = from[i++]) != ',') - { - *mem_addr_ptr = *mem_addr_ptr << 4; - *mem_addr_ptr |= fromhex(ch) & 0x0f; - } - /************debugging begin************/ - printf("\nFinished mem_addr part"); - /************debugging end************/ - - for(j=0; j < 4; j++) - { - if((ch = from[i++]) == 0) - break; - *len_ptr = *len_ptr << 4; - *len_ptr |= fromhex(ch) & 0x0f; - } - /************debugging begin************/ - printf("\nFinished len_ptr part"); - /************debugging end************/ -} - -void -decode_M_packet(from,mem_addr_ptr,len_ptr,to) -char *from, *to; -unsigned int *mem_addr_ptr, *len_ptr; -{ - int i = 0, j = 0 ; - char ch; - *mem_addr_ptr = *len_ptr = 0; - /************debugging begin************/ - printf("\nIn decode_M_packet"); - /************debugging end************/ - - while((ch = from[i++]) != ',') - { - *mem_addr_ptr = *mem_addr_ptr << 4; - *mem_addr_ptr |= fromhex(ch) & 0x0f; - } - /************debugging begin************/ - printf("\nFinished mem_addr part: memaddr = %x",*mem_addr_ptr); - /************debugging end************/ - - while((ch = from[i++]) != ':') - { - *len_ptr = *len_ptr << 4; - *len_ptr |= fromhex(ch) & 0x0f; - } - /************debugging begin************/ - printf("\nFinished len_ptr part: len = %d",*len_ptr); - /************debugging end************/ - - convert_ascii_to_int(&from[i++],to,*len_ptr); - - /************debugging begin************/ - printf("\nmembuf : %x",*(int *)to); - /************debugging end************/ -} - -SHAR_EOF -# End of shell archive -exit 0 |
