#include <stdio.h>
|
#include <stdio.h>
|
#include <ctype.h>
|
#include <ctype.h>
|
#include <string.h>
|
#include <string.h>
|
#include <stdlib.h>
|
#include <stdlib.h>
|
#include <unistd.h>
|
#include <unistd.h>
|
#include <stdarg.h>
|
#include <stdarg.h>
|
|
|
/* Libraries for JTAG proxy server. */
|
/* Libraries for JTAG proxy server. */
|
#include <sys/stat.h>
|
#include <sys/stat.h>
|
#include <sys/types.h>
|
#include <sys/types.h>
|
#include <sys/socket.h>
|
#include <sys/socket.h>
|
#include <netinet/in.h>
|
#include <netinet/in.h>
|
#include <sys/select.h>
|
#include <sys/select.h>
|
#include <sys/poll.h>
|
#include <sys/poll.h>
|
#include <fcntl.h>
|
#include <fcntl.h>
|
#include <netdb.h>
|
#include <netdb.h>
|
#include <netinet/tcp.h>
|
#include <netinet/tcp.h>
|
#include <inttypes.h>
|
#include <inttypes.h>
|
#include <errno.h>
|
#include <errno.h>
|
|
|
#include "gdb.h" /* partially copied from gdb/config/or1k */
|
#include "gdb.h" /* partially copied from gdb/config/or1k */
|
#include "jp2.h"
|
#include "jp2.h"
|
|
|
|
|
/* connection to jp2 routines */
|
/* connection to jp2 routines */
|
int gdb_chain = -1;
|
int gdb_chain = -1;
|
|
|
int gdb_read_reg(unsigned long adr, unsigned long *data) {
|
int gdb_read_reg(unsigned long adr, unsigned long *data) {
|
switch (gdb_chain) {
|
switch (gdb_chain) {
|
SC_RISC_DEBUG: return dbg_cpu_read32(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_RISC_DEBUG: return dbg_cpu_read32(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_REGISTER: return dbg_cpu_read_reg(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_REGISTER: return dbg_cpu_read_reg(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_WISHBONE: return dbg_wb_read32(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_WISHBONE: return dbg_wb_read32(adr, data) ? ERR_CRC : ERR_NONE;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
}
|
}
|
}
|
}
|
|
|
int gdb_write_reg(unsigned long adr, unsigned long data) {
|
int gdb_write_reg(unsigned long adr, unsigned long data) {
|
switch (gdb_chain) {
|
switch (gdb_chain) {
|
SC_RISC_DEBUG: return dbg_cpu_write32(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_RISC_DEBUG: return dbg_cpu_write32(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_REGISTER: return dbg_cpu_write_reg(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_REGISTER: return dbg_cpu_write_reg(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_WISHBONE: return dbg_wb_write32(adr, data) ? ERR_CRC : ERR_NONE;
|
SC_WISHBONE: return dbg_wb_write32(adr, data) ? ERR_CRC : ERR_NONE;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
}
|
}
|
}
|
}
|
|
|
int gdb_read_block(unsigned long adr, unsigned long *data, int len) {
|
int gdb_read_block(unsigned long adr, unsigned long *data, int len) {
|
switch (gdb_chain) {
|
switch (gdb_chain) {
|
SC_WISHBONE: return dbg_wb_read_block32(adr, data, len) ? ERR_CRC : ERR_NONE;
|
SC_WISHBONE: return dbg_wb_read_block32(adr, data, len) ? ERR_CRC : ERR_NONE;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
}
|
}
|
}
|
}
|
|
|
int gdb_write_block(unsigned long adr, unsigned long *data, int len) {
|
int gdb_write_block(unsigned long adr, unsigned long *data, int len) {
|
switch (gdb_chain) {
|
switch (gdb_chain) {
|
SC_WISHBONE: return dbg_wb_write_block32(adr, data, len) ? ERR_CRC : ERR_NONE;
|
SC_WISHBONE: return dbg_wb_write_block32(adr, data, len) ? ERR_CRC : ERR_NONE;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
}
|
}
|
}
|
}
|
|
|
int gdb_set_chain(int chain) {
|
int gdb_set_chain(int chain) {
|
switch (gdb_chain) {
|
switch (gdb_chain) {
|
SC_RISC_DEBUG:
|
SC_RISC_DEBUG:
|
SC_REGISTER:
|
SC_REGISTER:
|
SC_WISHBONE: gdb_chain = chain;
|
SC_WISHBONE: gdb_chain = chain;
|
return ERR_NONE;
|
return ERR_NONE;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
default: return JTAG_PROXY_INVALID_CHAIN;
|
}
|
}
|
}
|
}
|
|
|
|
|
|
|
/************************
|
/************************
|
JTAG Server Routines
|
JTAG Server Routines
|
************************/
|
************************/
|
|
|
unsigned int serverIP = 0;
|
unsigned int serverIP = 0;
|
unsigned int serverPort = 0;
|
unsigned int serverPort = 0;
|
unsigned int server_fd = 0;
|
unsigned int server_fd = 0;
|
unsigned int gdb_fd = 0;
|
unsigned int gdb_fd = 0;
|
static int gdb_read(void*, int);
|
static int gdb_read(void*, int);
|
static int gdb_write(void*, int);
|
static int gdb_write(void*, int);
|
static void ProtocolClean(int, int32_t);
|
static void ProtocolClean(int, int32_t);
|
|
|
static int tcp_level = 0;
|
static int tcp_level = 0;
|
|
|
/* Added by CZ 24/05/01 */
|
/* Added by CZ 24/05/01 */
|
int GetServerSocket(const char* name, const char* proto, int port) {
|
int GetServerSocket(const char* name, const char* proto, int port) {
|
struct servent *service;
|
struct servent *service;
|
struct protoent *protocol;
|
struct protoent *protocol;
|
struct sockaddr_in sa;
|
struct sockaddr_in sa;
|
struct hostent *hp;
|
struct hostent *hp;
|
int sockfd;
|
int sockfd;
|
char myname[256];
|
char myname[256];
|
int flags;
|
int flags;
|
char sTemp[256];
|
char sTemp[256];
|
|
|
/* First, get the protocol number of TCP */
|
/* First, get the protocol number of TCP */
|
if (!(protocol = getprotobyname(proto))) {
|
if (!(protocol = getprotobyname(proto))) {
|
sprintf(sTemp, "Unable to load protocol \"%s\"", proto);
|
sprintf(sTemp, "Unable to load protocol \"%s\"", proto);
|
perror(sTemp);
|
perror(sTemp);
|
return 0;
|
return 0;
|
}
|
}
|
tcp_level = protocol->p_proto; /* Save for later */
|
tcp_level = protocol->p_proto; /* Save for later */
|
|
|
/* If we weren't passed a non standard port, get the port
|
/* If we weren't passed a non standard port, get the port
|
from the services directory. */
|
from the services directory. */
|
if (!port && (service = getservbyname(name, protocol->p_name)))
|
if (!port && (service = getservbyname(name, protocol->p_name)))
|
port = ntohs(service->s_port);
|
port = ntohs(service->s_port);
|
|
|
/* Create the socket using the TCP protocol */
|
/* Create the socket using the TCP protocol */
|
if ((sockfd = socket(PF_INET, SOCK_STREAM, protocol->p_proto)) < 0) {
|
if ((sockfd = socket(PF_INET, SOCK_STREAM, protocol->p_proto)) < 0) {
|
perror("Unable to create socket");
|
perror("Unable to create socket");
|
return 0;
|
return 0;
|
}
|
}
|
|
|
flags = 1;
|
flags = 1;
|
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&flags, sizeof(int)) < 0) {
|
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&flags, sizeof(int)) < 0) {
|
sprintf(sTemp, "Can not set SO_REUSEADDR option on socket %d", sockfd);
|
sprintf(sTemp, "Can not set SO_REUSEADDR option on socket %d", sockfd);
|
perror(sTemp);
|
perror(sTemp);
|
close(sockfd);
|
close(sockfd);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* The server should also be non blocking. Get the current flags. */
|
/* The server should also be non blocking. Get the current flags. */
|
if((flags = fcntl(sockfd, F_GETFL, 0)) < 0) {
|
if((flags = fcntl(sockfd, F_GETFL, 0)) < 0) {
|
sprintf(sTemp, "Unable to get flags for socket %d", sockfd);
|
sprintf(sTemp, "Unable to get flags for socket %d", sockfd);
|
perror(sTemp);
|
perror(sTemp);
|
close(sockfd);
|
close(sockfd);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Set the nonblocking flag */
|
/* Set the nonblocking flag */
|
if(fcntl(sockfd, F_SETFL, flags | O_NONBLOCK) < 0) {
|
if(fcntl(sockfd, F_SETFL, flags | O_NONBLOCK) < 0) {
|
sprintf(sTemp, "Unable to set flags for socket %d to value 0x%08x",
|
sprintf(sTemp, "Unable to set flags for socket %d to value 0x%08x",
|
sockfd, flags | O_NONBLOCK);
|
sockfd, flags | O_NONBLOCK);
|
perror(sTemp);
|
perror(sTemp);
|
close(sockfd);
|
close(sockfd);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Find out what our address is */
|
/* Find out what our address is */
|
memset(&sa, 0, sizeof(struct sockaddr_in));
|
memset(&sa, 0, sizeof(struct sockaddr_in));
|
gethostname(myname, sizeof(myname));
|
gethostname(myname, sizeof(myname));
|
if(!(hp = gethostbyname(myname))) {
|
if(!(hp = gethostbyname(myname))) {
|
perror("Unable to read hostname");
|
perror("Unable to read hostname");
|
close(sockfd);
|
close(sockfd);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Bind our socket to the appropriate address */
|
/* Bind our socket to the appropriate address */
|
sa.sin_family = hp->h_addrtype;
|
sa.sin_family = hp->h_addrtype;
|
sa.sin_port = htons(port);
|
sa.sin_port = htons(port);
|
if(bind(sockfd, (struct sockaddr*)&sa, sizeof(struct sockaddr_in)) < 0) {
|
if(bind(sockfd, (struct sockaddr*)&sa, sizeof(struct sockaddr_in)) < 0) {
|
sprintf(sTemp, "Unable to bind socket %d to port %d", sockfd, port);
|
sprintf(sTemp, "Unable to bind socket %d to port %d", sockfd, port);
|
perror(sTemp);
|
perror(sTemp);
|
close(sockfd);
|
close(sockfd);
|
return 0;
|
return 0;
|
}
|
}
|
serverIP = sa.sin_addr.s_addr;
|
serverIP = sa.sin_addr.s_addr;
|
flags = sizeof(struct sockaddr_in);
|
flags = sizeof(struct sockaddr_in);
|
if(getsockname(sockfd, (struct sockaddr*)&sa, &flags) < 0) {
|
if(getsockname(sockfd, (struct sockaddr*)&sa, &flags) < 0) {
|
sprintf(sTemp, "Unable to get socket information for socket %d", sockfd);
|
sprintf(sTemp, "Unable to get socket information for socket %d", sockfd);
|
perror(sTemp);
|
perror(sTemp);
|
close(sockfd);
|
close(sockfd);
|
return 0;
|
return 0;
|
}
|
}
|
serverPort = ntohs(sa.sin_port);
|
serverPort = ntohs(sa.sin_port);
|
|
|
/* Set the backlog to 1 connections */
|
/* Set the backlog to 1 connections */
|
if(listen(sockfd, 1) < 0) {
|
if(listen(sockfd, 1) < 0) {
|
sprintf(sTemp, "Unable to set backlog on socket %d to %d", sockfd, 1);
|
sprintf(sTemp, "Unable to set backlog on socket %d to %d", sockfd, 1);
|
perror(sTemp);
|
perror(sTemp);
|
close(sockfd);
|
close(sockfd);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
return sockfd;
|
return sockfd;
|
}
|
}
|
|
|
void HandleServerSocket(Boolean block) {
|
void HandleServerSocket(Boolean block) {
|
struct pollfd fds[2];
|
struct pollfd fds[2];
|
int n;
|
int n;
|
|
|
rebuild:
|
rebuild:
|
n = 0;
|
n = 0;
|
if(!server_fd && !gdb_fd) return;
|
if(!server_fd && !gdb_fd) return;
|
|
|
if(server_fd) {
|
if(server_fd) {
|
fds[n].fd = server_fd;
|
fds[n].fd = server_fd;
|
fds[n].events = POLLIN;
|
fds[n].events = POLLIN;
|
fds[n++].revents = 0;
|
fds[n++].revents = 0;
|
}
|
}
|
if(gdb_fd) {
|
if(gdb_fd) {
|
fds[n].fd = gdb_fd;
|
fds[n].fd = gdb_fd;
|
fds[n].events = POLLIN;
|
fds[n].events = POLLIN;
|
fds[n++].revents = 0;
|
fds[n++].revents = 0;
|
}
|
}
|
|
|
while(1) {
|
while(1) {
|
switch(poll(fds, n, -1)) {
|
switch(poll(fds, n, -1)) {
|
case 0:
|
case 0:
|
case -1:
|
case -1:
|
if(errno == EINTR) continue;
|
if(errno == EINTR) continue;
|
perror("poll");
|
perror("poll");
|
server_fd = 0;
|
server_fd = 0;
|
return;
|
return;
|
default:
|
default:
|
/* Make sure to handle the gdb port first! */
|
/* Make sure to handle the gdb port first! */
|
if (gdb_fd && (fds[0].revents && !server_fd || fds[1].revents && server_fd)) {
|
if (gdb_fd && (fds[0].revents && !server_fd || fds[1].revents && server_fd)) {
|
int revents = server_fd ? fds[1].revents : fds[0].revents;
|
int revents = server_fd ? fds[1].revents : fds[0].revents;
|
if (revents & POLLIN) GDBRequest();
|
if (revents & POLLIN) GDBRequest();
|
else {/* Error Occurred */
|
else {/* Error Occurred */
|
fprintf(stderr, "Received flags 0x%08x on gdb socket. Shutting down.\n", revents);
|
fprintf(stderr, "Received flags 0x%08x on gdb socket. Shutting down.\n", revents);
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
}
|
}
|
if(fds[0].revents && server_fd) {
|
if(fds[0].revents && server_fd) {
|
if(fds[0].revents & POLLIN) {
|
if(fds[0].revents & POLLIN) {
|
JTAGRequest();
|
JTAGRequest();
|
goto rebuild;
|
goto rebuild;
|
} else { /* Error Occurred */
|
} else { /* Error Occurred */
|
fprintf(stderr, "Received flags 0x%08x on server. Shutting down.\n", fds[0].revents);
|
fprintf(stderr, "Received flags 0x%08x on server. Shutting down.\n", fds[0].revents);
|
close(server_fd);
|
close(server_fd);
|
server_fd = 0;
|
server_fd = 0;
|
serverPort = 0;
|
serverPort = 0;
|
serverIP = 0;
|
serverIP = 0;
|
return;
|
return;
|
}
|
}
|
}
|
}
|
break;
|
break;
|
} /* End of switch statement */
|
} /* End of switch statement */
|
} /* End of while statement */
|
} /* End of while statement */
|
}
|
}
|
|
|
void JTAGRequest() {
|
void JTAGRequest() {
|
struct sockaddr_in sa;
|
struct sockaddr_in sa;
|
struct sockaddr* addr = (struct sockaddr*)&sa;
|
struct sockaddr* addr = (struct sockaddr*)&sa;
|
int n = sizeof(struct sockaddr_in);
|
int n = sizeof(struct sockaddr_in);
|
int fd = accept(server_fd, addr, &n);
|
int fd = accept(server_fd, addr, &n);
|
int on_off = 0; /* Turn off Nagel's algorithm on the socket */
|
int on_off = 0; /* Turn off Nagel's algorithm on the socket */
|
int flags;
|
int flags;
|
char sTemp[256];
|
char sTemp[256];
|
|
|
if(fd < 0) {
|
if(fd < 0) {
|
/* This is valid, because a connection could have started,
|
/* This is valid, because a connection could have started,
|
and then terminated due to a protocol error or user
|
and then terminated due to a protocol error or user
|
initiation before the accept could take place. */
|
initiation before the accept could take place. */
|
if(errno != EWOULDBLOCK && errno != EAGAIN) {
|
if(errno != EWOULDBLOCK && errno != EAGAIN) {
|
perror("accept");
|
perror("accept");
|
close(server_fd);
|
close(server_fd);
|
server_fd = 0;
|
server_fd = 0;
|
serverPort = 0;
|
serverPort = 0;
|
serverIP = 0;
|
serverIP = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
|
|
if(gdb_fd) {
|
if(gdb_fd) {
|
close(fd);
|
close(fd);
|
return;
|
return;
|
}
|
}
|
|
|
if((flags = fcntl(fd, F_GETFL,0)) < 0) {
|
if((flags = fcntl(fd, F_GETFL,0)) < 0) {
|
sprintf(sTemp, "Unable to get flags for gdb socket %d", fd);
|
sprintf(sTemp, "Unable to get flags for gdb socket %d", fd);
|
perror(sTemp);
|
perror(sTemp);
|
close(fd);
|
close(fd);
|
return;
|
return;
|
}
|
}
|
|
|
if(fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
|
if(fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
|
sprintf(sTemp, "Unable to set flags for gdb socket %d to value 0x%08x",
|
sprintf(sTemp, "Unable to set flags for gdb socket %d to value 0x%08x",
|
fd, flags | O_NONBLOCK);
|
fd, flags | O_NONBLOCK);
|
perror(sTemp);
|
perror(sTemp);
|
close(fd);
|
close(fd);
|
return;
|
return;
|
}
|
}
|
|
|
if(setsockopt(fd, tcp_level, TCP_NODELAY, &on_off, sizeof(int)) < 0) {
|
if(setsockopt(fd, tcp_level, TCP_NODELAY, &on_off, sizeof(int)) < 0) {
|
sprintf(sTemp, "Unable to disable Nagel's algorithm for socket %d.\nsetsockopt", fd);
|
sprintf(sTemp, "Unable to disable Nagel's algorithm for socket %d.\nsetsockopt", fd);
|
perror(sTemp);
|
perror(sTemp);
|
close(fd);
|
close(fd);
|
return;
|
return;
|
}
|
}
|
|
|
gdb_fd = fd;
|
gdb_fd = fd;
|
}
|
}
|
|
|
void GDBRequest() {
|
void GDBRequest() {
|
JTAGProxyWriteMessage msg_write;
|
JTAGProxyWriteMessage msg_write;
|
JTAGProxyReadMessage msg_read;
|
JTAGProxyReadMessage msg_read;
|
JTAGProxyChainMessage msg_chain;
|
JTAGProxyChainMessage msg_chain;
|
JTAGProxyWriteResponse resp_write;
|
JTAGProxyWriteResponse resp_write;
|
JTAGProxyReadResponse resp_read;
|
JTAGProxyReadResponse resp_read;
|
JTAGProxyChainResponse resp_chain;
|
JTAGProxyChainResponse resp_chain;
|
JTAGProxyBlockWriteMessage *msg_bwrite;
|
JTAGProxyBlockWriteMessage *msg_bwrite;
|
JTAGProxyBlockReadMessage msg_bread;
|
JTAGProxyBlockReadMessage msg_bread;
|
JTAGProxyBlockWriteResponse resp_bwrite;
|
JTAGProxyBlockWriteResponse resp_bwrite;
|
JTAGProxyBlockReadResponse *resp_bread;
|
JTAGProxyBlockReadResponse *resp_bread;
|
char *buf;
|
char *buf;
|
unsigned long long data;
|
unsigned long long data;
|
uint32_t command, length;
|
uint32_t command, length;
|
int len, i;
|
int len, i;
|
int err = 0;
|
int err = 0;
|
|
|
/* First, we must read the incomming command */
|
/* First, we must read the incomming command */
|
if(gdb_read(&command, sizeof(uint32_t)) < 0) {
|
if(gdb_read(&command, sizeof(uint32_t)) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 1");
|
perror("gdb socket - 1");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
if(gdb_read(&length, sizeof(uint32_t)) < 0) {
|
if(gdb_read(&length, sizeof(uint32_t)) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 2");
|
perror("gdb socket - 2");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
length = ntohl(length);
|
length = ntohl(length);
|
|
|
/* Now, verify the protocol and implement the command */
|
/* Now, verify the protocol and implement the command */
|
switch(ntohl(command)) {
|
switch(ntohl(command)) {
|
case JTAG_COMMAND_WRITE:
|
case JTAG_COMMAND_WRITE:
|
if(length != sizeof(msg_write) - 8) {
|
if(length != sizeof(msg_write) - 8) {
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
return;
|
return;
|
}
|
}
|
buf = (char*)&msg_write;
|
buf = (char*)&msg_write;
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 3");
|
perror("gdb socket - 3");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
msg_write.address = ntohl(msg_write.address);
|
msg_write.address = ntohl(msg_write.address);
|
msg_write.data_H = ntohl(msg_write.data_H);
|
msg_write.data_H = ntohl(msg_write.data_H);
|
msg_write.data_L = ntohl(msg_write.data_L);
|
msg_write.data_L = ntohl(msg_write.data_L);
|
err = gdb_write_reg(msg_write.address, msg_write.data_L);
|
err = gdb_write_reg(msg_write.address, msg_write.data_L);
|
resp_write.status = htonl(err);
|
resp_write.status = htonl(err);
|
if(gdb_write(&resp_write, sizeof(resp_write)) < 0) {
|
if(gdb_write(&resp_write, sizeof(resp_write)) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 4");
|
perror("gdb socket - 4");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
break;
|
break;
|
case JTAG_COMMAND_READ:
|
case JTAG_COMMAND_READ:
|
if(length != sizeof(msg_read) - 8) {
|
if(length != sizeof(msg_read) - 8) {
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
return;
|
return;
|
}
|
}
|
buf = (char*)&msg_read;
|
buf = (char*)&msg_read;
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 5");
|
perror("gdb socket - 5");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
msg_read.address = ntohl(msg_read.address);
|
msg_read.address = ntohl(msg_read.address);
|
err = gdb_read_reg(msg_read.address, (unsigned long *)&resp_read.data_L);
|
err = gdb_read_reg(msg_read.address, (unsigned long *)&resp_read.data_L);
|
resp_read.status = htonl(err);
|
resp_read.status = htonl(err);
|
resp_read.data_H = 0;
|
resp_read.data_H = 0;
|
resp_read.data_L = htonl(resp_read.data_L);
|
resp_read.data_L = htonl(resp_read.data_L);
|
if(gdb_write(&resp_read, sizeof(resp_read)) < 0) {
|
if(gdb_write(&resp_read, sizeof(resp_read)) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 6");
|
perror("gdb socket - 6");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
break;
|
break;
|
case JTAG_COMMAND_BLOCK_WRITE:
|
case JTAG_COMMAND_BLOCK_WRITE:
|
if(length < sizeof(JTAGProxyBlockWriteMessage)-8) {
|
if(length < sizeof(JTAGProxyBlockWriteMessage)-8) {
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
return;
|
return;
|
}
|
}
|
if(!(buf = (char*)malloc(8+length))) {
|
if(!(buf = (char*)malloc(8+length))) {
|
ProtocolClean(length, JTAG_PROXY_OUT_OF_MEMORY);
|
ProtocolClean(length, JTAG_PROXY_OUT_OF_MEMORY);
|
return;
|
return;
|
}
|
}
|
msg_bwrite = (JTAGProxyBlockWriteMessage*)buf;
|
msg_bwrite = (JTAGProxyBlockWriteMessage*)buf;
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 5");
|
perror("gdb socket - 5");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
free(buf);
|
free(buf);
|
return;
|
return;
|
}
|
}
|
msg_bwrite->address = ntohl(msg_bwrite->address);
|
msg_bwrite->address = ntohl(msg_bwrite->address);
|
msg_bwrite->nRegisters = ntohl(msg_bwrite->nRegisters);
|
msg_bwrite->nRegisters = ntohl(msg_bwrite->nRegisters);
|
for(i=0;i<msg_bwrite->nRegisters;i++) {
|
for(i=0;i<msg_bwrite->nRegisters;i++) {
|
msg_bwrite->data[i] = ntohl(msg_bwrite->data[i]);
|
msg_bwrite->data[i] = ntohl(msg_bwrite->data[i]);
|
}
|
}
|
err = gdb_write_block(msg_bwrite->address, (unsigned long*)msg_bwrite->data, msg_bwrite->nRegisters * 4);
|
err = gdb_write_block(msg_bwrite->address, (unsigned long*)msg_bwrite->data, msg_bwrite->nRegisters * 4);
|
resp_bwrite.status = htonl(err);
|
resp_bwrite.status = htonl(err);
|
free(buf);
|
free(buf);
|
msg_bwrite = (JTAGProxyBlockWriteMessage *)NULL;
|
msg_bwrite = (JTAGProxyBlockWriteMessage *)NULL;
|
buf = (char *)msg_bwrite;
|
buf = (char *)msg_bwrite;
|
if(gdb_write(&resp_bwrite, sizeof(resp_bwrite)) < 0) {
|
if(gdb_write(&resp_bwrite, sizeof(resp_bwrite)) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 4");
|
perror("gdb socket - 4");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
break;
|
break;
|
case JTAG_COMMAND_BLOCK_READ:
|
case JTAG_COMMAND_BLOCK_READ:
|
if(length != sizeof(msg_bread) - 8) {
|
if(length != sizeof(msg_bread) - 8) {
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
return;
|
return;
|
}
|
}
|
buf = (char*)&msg_bread;
|
buf = (char*)&msg_bread;
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_read(&buf[8], length) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 5");
|
perror("gdb socket - 5");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
msg_bread.address = ntohl(msg_bread.address);
|
msg_bread.address = ntohl(msg_bread.address);
|
msg_bread.nRegisters = ntohl(msg_bread.nRegisters);
|
msg_bread.nRegisters = ntohl(msg_bread.nRegisters);
|
len = sizeof(JTAGProxyBlockReadResponse) + 4*(msg_bread.nRegisters-1);
|
len = sizeof(JTAGProxyBlockReadResponse) + 4*(msg_bread.nRegisters-1);
|
if(!(buf = (char*)malloc(len))) {
|
if(!(buf = (char*)malloc(len))) {
|
ProtocolClean(0, JTAG_PROXY_OUT_OF_MEMORY);
|
ProtocolClean(0, JTAG_PROXY_OUT_OF_MEMORY);
|
return;
|
return;
|
}
|
}
|
resp_bread = (JTAGProxyBlockReadResponse*)buf;
|
resp_bread = (JTAGProxyBlockReadResponse*)buf;
|
err = gdb_read_block(msg_bread.address, (unsigned long*)resp_bread->data, msg_bread.nRegisters * 4);
|
err = gdb_read_block(msg_bread.address, (unsigned long*)resp_bread->data, msg_bread.nRegisters * 4);
|
for(i=0;i<msg_bread.nRegisters;i++) {
|
for(i=0;i<msg_bread.nRegisters;i++) {
|
/* Read previous, address next one. */
|
/* Read previous, address next one. */
|
resp_bread->data[i] = htonl(resp_bread->data[i]);
|
resp_bread->data[i] = htonl(resp_bread->data[i]);
|
}
|
}
|
resp_bread->status = htonl(err);
|
resp_bread->status = htonl(err);
|
resp_bread->nRegisters = htonl(msg_bread.nRegisters);
|
resp_bread->nRegisters = htonl(msg_bread.nRegisters);
|
if(gdb_write(resp_bread, len) < 0) {
|
if(gdb_write(resp_bread, len) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 6");
|
perror("gdb socket - 6");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
free(buf);
|
free(buf);
|
return;
|
return;
|
}
|
}
|
free(buf);
|
free(buf);
|
resp_bread = (JTAGProxyBlockReadResponse *)NULL;
|
resp_bread = (JTAGProxyBlockReadResponse *)NULL;
|
buf = (char *)resp_bread;
|
buf = (char *)resp_bread;
|
break;
|
break;
|
case JTAG_COMMAND_CHAIN:
|
case JTAG_COMMAND_CHAIN:
|
if(length != sizeof(msg_chain) - 8) {
|
if(length != sizeof(msg_chain) - 8) {
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
ProtocolClean(length, JTAG_PROXY_PROTOCOL_ERROR);
|
return;
|
return;
|
}
|
}
|
buf = (char*)&msg_chain;
|
buf = (char*)&msg_chain;
|
if(gdb_read(&buf[8], sizeof(msg_chain)-8) < 0) {
|
if(gdb_read(&buf[8], sizeof(msg_chain)-8) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 7");
|
perror("gdb socket - 7");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
msg_chain.chain = htonl(msg_chain.chain);
|
msg_chain.chain = htonl(msg_chain.chain);
|
err = gdb_set_chain(msg_chain.chain);
|
err = gdb_set_chain(msg_chain.chain);
|
resp_chain.status = htonl(err);
|
resp_chain.status = htonl(err);
|
if(gdb_write(&resp_chain, sizeof(resp_chain)) < 0) {
|
if(gdb_write(&resp_chain, sizeof(resp_chain)) < 0) {
|
if(gdb_fd) {
|
if(gdb_fd) {
|
perror("gdb socket - 8");
|
perror("gdb socket - 8");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
return;
|
return;
|
}
|
}
|
break;
|
break;
|
default:
|
default:
|
perror("Unknown JTAG command.");
|
perror("Unknown JTAG command.");
|
ProtocolClean(length, JTAG_PROXY_COMMAND_NOT_IMPLEMENTED);
|
ProtocolClean(length, JTAG_PROXY_COMMAND_NOT_IMPLEMENTED);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
static void ProtocolClean(int length, int32_t err) {
|
static void ProtocolClean(int length, int32_t err) {
|
char buf[4096];
|
char buf[4096];
|
|
|
err = htonl(err);
|
err = htonl(err);
|
if((gdb_read(buf, length) < 0) || (gdb_write(&err, sizeof(err)) < 0) && gdb_fd) {
|
if((gdb_read(buf, length) < 0) || (gdb_write(&err, sizeof(err)) < 0) && gdb_fd) {
|
perror("gdb socket - 9");
|
perror("gdb socket - 9");
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
}
|
}
|
}
|
}
|
|
|
static int gdb_write(void* buf, int len) {
|
static int gdb_write(void* buf, int len) {
|
int n;
|
int n;
|
char* w_buf = (char*)buf;
|
char* w_buf = (char*)buf;
|
struct pollfd block;
|
struct pollfd block;
|
|
|
while(len) {
|
while(len) {
|
if((n = write(gdb_fd, w_buf, len)) < 0) {
|
if((n = write(gdb_fd, w_buf, len)) < 0) {
|
switch(errno) {
|
switch(errno) {
|
case EWOULDBLOCK: /* or EAGAIN */
|
case EWOULDBLOCK: /* or EAGAIN */
|
/* We've been called on a descriptor marked
|
/* We've been called on a descriptor marked
|
for nonblocking I/O. We better simulate
|
for nonblocking I/O. We better simulate
|
blocking behavior. */
|
blocking behavior. */
|
block.fd = gdb_fd;
|
block.fd = gdb_fd;
|
block.events = POLLOUT;
|
block.events = POLLOUT;
|
block.revents = 0;
|
block.revents = 0;
|
poll(&block, 1, -1);
|
poll(&block, 1, -1);
|
continue;
|
continue;
|
case EINTR:
|
case EINTR:
|
continue;
|
continue;
|
case EPIPE:
|
case EPIPE:
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
return -1;
|
return -1;
|
default:
|
default:
|
return -1;
|
return -1;
|
}
|
}
|
} else {
|
} else {
|
len -= n;
|
len -= n;
|
w_buf += n;
|
w_buf += n;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int gdb_read(void* buf, int len) {
|
static int gdb_read(void* buf, int len) {
|
int n;
|
int n;
|
char* r_buf = (char*)buf;
|
char* r_buf = (char*)buf;
|
struct pollfd block;
|
struct pollfd block;
|
|
|
while(len) {
|
while(len) {
|
if((n = read(gdb_fd, r_buf, len)) < 0) {
|
if((n = read(gdb_fd, r_buf, len)) < 0) {
|
switch(errno) {
|
switch(errno) {
|
case EWOULDBLOCK: /* or EAGAIN */
|
case EWOULDBLOCK: /* or EAGAIN */
|
/* We've been called on a descriptor marked
|
/* We've been called on a descriptor marked
|
for nonblocking I/O. We better simulate
|
for nonblocking I/O. We better simulate
|
blocking behavior. */
|
blocking behavior. */
|
block.fd = gdb_fd;
|
block.fd = gdb_fd;
|
block.events = POLLIN;
|
block.events = POLLIN;
|
block.revents = 0;
|
block.revents = 0;
|
poll(&block, 1, -1);
|
poll(&block, 1, -1);
|
continue;
|
continue;
|
case EINTR:
|
case EINTR:
|
continue;
|
continue;
|
default:
|
default:
|
return -1;
|
return -1;
|
}
|
}
|
} else if(n == 0) {
|
} else if(n == 0) {
|
close(gdb_fd);
|
close(gdb_fd);
|
gdb_fd = 0;
|
gdb_fd = 0;
|
return -1;
|
return -1;
|
} else {
|
} else {
|
len -= n;
|
len -= n;
|
r_buf += n;
|
r_buf += n;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|