mirror of
https://github.com/espressif/binutils-gdb.git
synced 2025-08-05 21:50:21 +08:00
* Makefile.in: Add new file ser-tcp.c.
* defs.h (memcmp): Add decl for memcmp to #ifndef MEM_FNS_DECLARED.
* findvar.c (write_register): See if we are writing back the same
value that's already in the register. If so, don't bother.
* remote.c (putpkt, getpkt): Improve handling of communication
problems.
* ser-go32.c: Prototype it to death. Update serial_ops and add
dummy routines where appropriate.
* ser-tcp.c: New module to implement serial I/O via TCP
connections.
* ser-unix.c: Clean up getting/setting of tty state. Get rid of
SERIAL_RESTORE, add SERIAL_{GET|SET}_TTY_STATE interfaces.
* serial.c: Add start of support for connect command.
(serial_open): Distinguish between tcp and local devices.
* serial.h (struct serial_ops): Get rid of restore, add
get_tty_state and set_tty_state. Define protoypes and macros for
this mess.
* gdbserver/remote-utils.c: Add tcp support. (readchar): Do
some real buffering. Handle error conditions gracefully.
* gdbserver/remote-inflow-sparc.c: Update to remote-inflow.c
(Lynx), remove lots of cruft.
This commit is contained in:
Stu Grossman
@ -1,9 +1,24 @@
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/* Low level interface to ptrace, for GDB when running under Unix.
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Copyright (C) 1986, 1987 Free Software Foundation, Inc.
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*/
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/* Low level interface to ptrace, for the remote server for GDB.
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Copyright (C) 1986, 1987, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include "wait.h"
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#include "/usr/include/sys/wait.h"
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#include "frame.h"
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#include "inferior.h"
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/***************************
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@ -38,12 +53,6 @@ extern int errno;
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extern int inferior_pid;
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void error (), quit (), perror_with_name ();
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int query ();
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void supply_register (), write_register ();
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CORE_ADDR read_register ();
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/* Nonzero if we are debugging an attached outside process
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rather than an inferior. */
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/* Start an inferior process and returns its pid.
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ALLARGS is a vector of program-name and args.
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@ -101,52 +110,52 @@ kill_inferior ()
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/*************inferior_died ();****VK**************/
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}
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/* Resume execution of the inferior process.
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If STEP is nonzero, single-step it.
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If SIGNAL is nonzero, give it that signal. */
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/* Wait for process, returns status */
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unsigned char
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myresume (step, signal, status)
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int step;
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int signal;
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mywait (status)
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char *status;
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{
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int pid;
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WAITTYPE w;
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union wait w;
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errno = 0;
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ptrace (step ? 9 : 7, inferior_pid, 1, signal);
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if (errno)
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perror_with_name ("ptrace");
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pid = wait (&w);
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if (pid != inferior_pid)
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perror_with_name ("wait");
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fetch_inferior_registers (0);
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if (WIFEXITED (w))
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{
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printf ("\nChild exited with retcode = %x \n", WEXITSTATUS (w));
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fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
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*status = 'E';
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return ((unsigned char) WEXITSTATUS (w));
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}
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else if (!WIFSTOPPED (w))
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{
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printf ("\nChild terminated with signal = %x \n", WTERMSIG (w));
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fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
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*status = 'T';
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return ((unsigned char) WTERMSIG (w));
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}
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else
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{
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printf ("\nChild stopped with signal = %x \n", WSTOPSIG (w));
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*status = 'S';
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return ((unsigned char) WSTOPSIG (w));
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}
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fetch_inferior_registers (0);
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*status = 'S';
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return ((unsigned char) WSTOPSIG (w));
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}
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#define INT_REGS 1
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#define STACK_REGS 2
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#define FP_REGS 4
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/* Resume execution of the inferior process.
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If STEP is nonzero, single-step it.
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If SIGNAL is nonzero, give it that signal. */
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void
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myresume (step, signal)
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int step;
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int signal;
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{
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errno = 0;
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ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal);
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if (errno)
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perror_with_name ("ptrace");
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}
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/* Fetch one or more registers from the inferior. REGNO == -1 to get
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them all. We actually fetch more than requested, when convenient,
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@ -234,63 +243,6 @@ store_inferior_registers (ignored)
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perror("ptrace_setfpregs");
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}
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#if 0
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void
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fetch_inferior_registers ()
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{
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struct regs inferior_registers;
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struct fp_status inferior_fp_registers;
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extern char registers[];
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ptrace (PTRACE_GETREGS, inferior_pid, &inferior_registers);
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if (errno)
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perror_with_name ("ptrace");
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/**********debugging begin **********/
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print_some_registers (&inferior_registers);
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/**********debugging end **********/
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ptrace (PTRACE_GETFPREGS, inferior_pid, &inferior_fp_registers);
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if (errno)
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perror_with_name ("ptrace");
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bcopy (&inferior_registers, registers, 16 * 4);
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bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
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sizeof inferior_fp_registers.fpu_regs);
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*(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
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*(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
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bcopy (&inferior_fp_registers.fpu_flags,
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®isters[REGISTER_BYTE (FPC_REGNUM)],
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sizeof inferior_fp_registers - sizeof inferior_fp_registers.fpu_regs);
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}
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/* Store our register values back into the inferior.
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If REGNO is -1, do this for all registers.
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Otherwise, REGNO specifies which register (so we can save time). */
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store_inferior_registers (regno)
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int regno;
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{
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struct regs inferior_registers;
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struct fp_status inferior_fp_registers;
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extern char registers[];
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bcopy (registers, &inferior_registers, 16 * 4);
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bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
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sizeof inferior_fp_registers.fps_regs);
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inferior_registers.r_ps = *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)];
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inferior_registers.r_pc = *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
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bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
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&inferior_fp_registers.fps_control,
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sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
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ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers);
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if (errno)
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perror_with_name ("ptrace");
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ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers);
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if (errno)
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perror_with_name ("ptrace");
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}
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#endif /* 0 */
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/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
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in the NEW_SUN_PTRACE case.
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It ought to be straightforward. But it appears that writing did
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@ -373,79 +325,14 @@ write_inferior_memory (memaddr, myaddr, len)
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return 0;
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}
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void
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try_writing_regs_command ()
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{
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register int i;
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register int val;
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if (inferior_pid == 0)
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error ("There is no inferior process now.");
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fetch_inferior_registers (0);
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for (i = 0; i < 18; i++)
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{
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QUIT;
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errno = 0;
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val = read_register (i);
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write_register (i, val);
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if (errno == 0)
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{
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printf (" Succeeded with register %d; value 0x%x (%d).\n",
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i, val, val);
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}
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else
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printf (" Failed with register %d.\n", i);
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}
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}
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void
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initialize ()
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{
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inferior_pid = 0;
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}
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/* Return the contents of register REGNO,
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regarding it as an integer. */
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CORE_ADDR
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read_register (regno)
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int regno;
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{
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/* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */
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return *(int *) ®isters[REGISTER_BYTE (regno)];
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}
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/* Store VALUE in the register number REGNO, regarded as an integer. */
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void
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write_register (regno, val)
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int regno, val;
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{
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/* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */
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*(int *) ®isters[REGISTER_BYTE (regno)] = val;
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if (have_inferior_p ())
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store_inferior_registers (regno);
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}
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int
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have_inferior_p ()
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{
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return inferior_pid != 0;
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}
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print_some_registers (regs)
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int regs[];
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{
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register int i;
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for (i = 0; i < 18; i++)
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{
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printf ("reg[%d] = %x\n", i, regs[i]);
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}
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}
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@ -25,10 +25,15 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <a.out.h>
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#include <sys/file.h>
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#include <sgtty.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <netinet/tcp.h>
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#include <sys/time.h>
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extern int remote_desc;
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extern int remote_debugging;
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extern int kiodebug;
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void remote_open ();
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void remote_send ();
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@ -53,13 +58,56 @@ remote_open (name, from_tty)
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remote_debugging = 0;
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remote_desc = open (name, O_RDWR);
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if (remote_desc < 0)
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perror_with_name ("Could not open remote device");
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if (!strchr (name, ':'))
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{
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remote_desc = open (name, O_RDWR);
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if (remote_desc < 0)
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perror_with_name ("Could not open remote device");
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ioctl (remote_desc, TIOCGETP, &sg);
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sg.sg_flags = RAW;
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ioctl (remote_desc, TIOCSETP, &sg);
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ioctl (remote_desc, TIOCGETP, &sg);
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sg.sg_flags = RAW;
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ioctl (remote_desc, TIOCSETP, &sg);
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}
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else
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{
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char *port_str;
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int port;
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struct sockaddr_in sockaddr;
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int tmp;
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port_str = strchr (name, ':');
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port = atoi (port_str + 1);
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remote_desc = socket (PF_INET, SOCK_STREAM, 0);
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if (remote_desc < 0)
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perror_with_name ("Can't open socket");
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/* Allow rapid reuse of this port. */
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tmp = 1;
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setsockopt (remote_desc, SOL_SOCKET, SO_REUSEADDR, (char *)&tmp,
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sizeof(tmp));
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/* Enable TCP keep alive process. */
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tmp = 1;
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setsockopt (remote_desc, SOL_SOCKET, SO_KEEPALIVE, (char *)&tmp, sizeof(tmp));
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sockaddr.sin_family = PF_INET;
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sockaddr.sin_port = htons(port);
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sockaddr.sin_addr.s_addr = INADDR_ANY;
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if (bind (remote_desc, &sockaddr, sizeof (sockaddr))
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|| listen (remote_desc, 1))
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perror_with_name ("Can't bind address");
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tmp = sizeof (sockaddr);
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remote_desc = accept (remote_desc, &sockaddr, &tmp);
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if (remote_desc == -1)
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perror_with_name ("Accept failed");
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tmp = 1;
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setsockopt (remote_desc, 6, TCP_NODELAY, (char *)&tmp, sizeof(tmp));
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}
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fprintf (stderr, "Remote debugging using %s\n", name);
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remote_debugging = 1;
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@ -148,9 +196,24 @@ putpkt (buf)
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static int
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readchar ()
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{
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char buf[1];
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while (read (remote_desc, buf, 1) != 1);
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return buf[0] & 0x7f;
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static char buf[BUFSIZ];
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static int bufcnt = 0;
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static char *bufp;
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if (bufcnt-- > 0)
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return *bufp++ & 0x7f;
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bufcnt = read (remote_desc, buf, sizeof (buf));
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if (bufcnt <= 0)
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{
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perror ("readchar");
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fatal ("read error, quitting");
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}
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bufp = buf;
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bufcnt--;
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return *bufp++ & 0x7f;
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}
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/* Read a packet from the remote machine, with error checking,
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@ -161,12 +224,13 @@ getpkt (buf)
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char *buf;
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{
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char *bp;
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unsigned char csum, c, c1, c2;
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extern kiodebug;
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unsigned char csum, c1, c2;
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int c;
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while (1)
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{
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csum = 0;
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while ((c = readchar ()) != '$');
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bp = buf;
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Reference in New Issue
Block a user