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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /sim/arm/communicate.c
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
Diffstat (limited to 'sim/arm/communicate.c')
-rw-r--r--sim/arm/communicate.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/sim/arm/communicate.c b/sim/arm/communicate.c
deleted file mode 100644
index 061e719..0000000
--- a/sim/arm/communicate.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/* communicate.c -- ARMulator RDP comms code: ARM6 Instruction Emulator.
- Copyright (C) 1994 Advanced RISC Machines Ltd.
-
- 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. */
-
-/**************************************************************************/
-/* Functions to read and write characters or groups of characters */
-/* down sockets or pipes. Those that return a value return -1 on failure */
-/* and 0 on success. */
-/**************************************************************************/
-
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-#include "armdefs.h"
-
-/* The socket to the debugger */
-int debugsock;
-
-/* The maximum number of file descriptors */
-extern int nfds;
-
-/* The socket handle */
-extern int sockethandle;
-
-/* Read and Write routines down a pipe or socket */
-
-/****************************************************************/
-/* Read an individual character. */
-/* All other read functions rely on this one. */
-/* It waits 15 seconds until there is a character available: if */
-/* no character is available, then it timeouts and returns -1. */
-/****************************************************************/
-int MYread_char(int sock, unsigned char *c) {
- int i;
- fd_set readfds;
- struct timeval timeout= {15, 0};
- struct sockaddr_in isa;
-
- retry:
-
- FD_ZERO(&readfds);
- FD_SET(sock, &readfds);
-
- i = select(nfds, &readfds,
- (fd_set *) 0,
- (fd_set *) 0,
- &timeout);
-
- if (i < 0) {
- perror("select");
- exit(1);
- }
-
- if (!i) {
- fprintf(stderr, "read: Timeout\n");
- return -1;
- }
-
- if ((i = read(sock, c, 1)) < 1) {
- if (!i && sock == debugsock) {
- fprintf(stderr, "Connection with debugger severed.\n");
- /* This shouldn't be necessary for a detached armulator, but
- the armulator cannot be cold started a second time, so
- this is probably preferable to locking up. */
- return -1;
- fprintf(stderr, "Waiting for connection from debugger...");
- debugsock = accept(sockethandle, &isa, &i);
- if (debugsock < 0) { /* Now we are in serious trouble... */
- perror("accept");
- return -1;
- }
- fprintf(stderr, " done.\nConnection Established.\n");
- sock = debugsock;
- goto retry;
- }
- perror("read");
- return -1;
- }
-
-#ifdef DEBUG
- if (sock == debugsock) fprintf(stderr, "<%02x ", *c);
-#endif
-
- return 0;
-}
-
-/****************************************************************/
-/* Read an individual character. */
-/* It waits until there is a character available. Returns -1 if */
-/* an error occurs. */
-/****************************************************************/
-int MYread_charwait(int sock, unsigned char *c) {
- int i;
- fd_set readfds;
- struct sockaddr_in isa;
-
- retry:
-
- FD_ZERO(&readfds);
- FD_SET(sock, &readfds);
-
- i = select(nfds, &readfds,
- (fd_set *) 0,
- (fd_set *) 0,
- (struct timeval *) 0);
-
- if (i < 0) {
- perror("select");
- exit(-1);
- }
-
- if ((i = read(sock, c, 1)) < 1) {
- if (!i && sock == debugsock) {
- fprintf(stderr, "Connection with debugger severed.\n");
- return -1;
- fprintf(stderr, "Waiting for connection from debugger...");
- debugsock = accept(sockethandle, &isa, &i);
- if (debugsock < 0) { /* Now we are in serious trouble... */
- perror("accept");
- return -1;
- }
- fprintf(stderr, " done.\nConnection Established.\n");
- sock = debugsock;
- goto retry;
- }
- perror("read");
- return -1;
- }
-
-#ifdef DEBUG
- if (sock == debugsock) fprintf(stderr, "<%02x ", *c);
-#endif
-
- return 0;
-}
-
-void MYwrite_char(int sock, unsigned char c) {
-
- if (write(sock, &c, 1) < 1)
- perror("write");
-#ifdef DEBUG
- if (sock == debugsock) fprintf(stderr, ">%02x ", c);
-#endif
-}
-
-int MYread_word(int sock, ARMword *here) {
- unsigned char a, b, c, d;
-
- if (MYread_char(sock, &a) < 0) return -1;
- if (MYread_char(sock, &b) < 0) return -1;
- if (MYread_char(sock, &c) < 0) return -1;
- if (MYread_char(sock, &d) < 0) return -1;
- *here = a | b << 8 | c << 16 | d << 24;
- return 0;
-}
-
-void MYwrite_word(int sock, ARMword i) {
- MYwrite_char(sock, i & 0xff);
- MYwrite_char(sock, (i & 0xff00) >> 8);
- MYwrite_char(sock, (i & 0xff0000) >> 16);
- MYwrite_char(sock, (i & 0xff000000) >> 24);
-}
-
-void MYwrite_string(int sock, char *s) {
- int i;
- for (i = 0; MYwrite_char(sock, s[i]), s[i]; i++);
-}
-
-int MYread_FPword(int sock, char *putinhere) {
- int i;
- for (i = 0; i < 16; i++)
- if (MYread_char(sock, &putinhere[i]) < 0) return -1;
- return 0;
-}
-
-void MYwrite_FPword(int sock, char *fromhere) {
- int i;
- for (i = 0; i < 16; i++)
- MYwrite_char(sock, fromhere[i]);
-}
-
-/* Takes n bytes from source and those n bytes */
-/* down to dest */
-int passon(int source, int dest, int n) {
- char *p;
- int i;
-
- p = (char *) malloc(n);
- if (!p) {
- perror("Out of memory\n");
- exit(1);
- }
- if (n) {
- for (i = 0; i < n; i++)
- if (MYread_char(source, &p[i]) < 0) return -1;
-
-#ifdef DEBUG
- if (dest == debugsock)
- for (i = 0; i < n; i++) fprintf(stderr, ")%02x ", (unsigned char) p[i]);
-#endif
-
- write(dest, p, n);
- }
- free(p);
- return 0;
-}