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- add ability for openocd to communicate to gdb using pipes (stdin/stdout).

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- this is enabled by new command line option option --pipe.

git-svn-id: svn://svn.berlios.de/openocd/trunk@1242 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak
2008-12-15 09:43:26 +00:00
parent 459d03e3bb
commit 47d0449347
10 changed files with 272 additions and 146 deletions
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70
src/server/gdb_server.c
View File

@@ -169,10 +169,18 @@ int gdb_get_char(connection_t *connection, int* next_char)
for (;;)
{
retval=check_pending(connection, 1, NULL);
if (retval!=ERROR_OK)
return retval;
gdb_con->buf_cnt = read_socket(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
if (connection->service->type == CONNECTION_PIPE)
{
gdb_con->buf_cnt = read(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
}
else
{
retval = check_pending(connection, 1, NULL);
if (retval != ERROR_OK)
return retval;
gdb_con->buf_cnt = read_socket(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
}
if (gdb_con->buf_cnt > 0)
{
break;
@@ -268,10 +276,21 @@ int gdb_write(connection_t *connection, void *data, int len)
gdb_connection_t *gdb_con = connection->priv;
if (gdb_con->closed)
return ERROR_SERVER_REMOTE_CLOSED;
if (write_socket(connection->fd, data, len) == len)
if (connection->service->type == CONNECTION_PIPE)
{
return ERROR_OK;
/* write to stdout */
if (write(STDOUT_FILENO, data, len) == len)
{
return ERROR_OK;
}
}
else
{
if (write_socket(connection->fd, data, len) == len)
{
return ERROR_OK;
}
}
gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
@@ -2158,7 +2177,7 @@ int gdb_input(connection_t *connection)
if (retval == ERROR_SERVER_REMOTE_CLOSED)
return retval;
/* logging does not propagate the error, yet can set th gdb_con->closed flag */
/* logging does not propagate the error, yet can set the gdb_con->closed flag */
if (gdb_con->closed)
return ERROR_SERVER_REMOTE_CLOSED;
@@ -2177,34 +2196,37 @@ int gdb_init(void)
return ERROR_OK;
}
if (gdb_port == 0)
if (gdb_port == 0 && server_use_pipes == 0)
{
LOG_WARNING("no gdb port specified, using default port 3333");
gdb_port = 3333;
}
while (target)
if (server_use_pipes)
{
char service_name[8];
snprintf(service_name, 8, "gdb-%2.2i", target->target_number);
/* only a single gdb connection when using a pipe */
gdb_service = malloc(sizeof(gdb_service_t));
gdb_service->target = target;
add_service("gdb", CONNECTION_GDB,
gdb_port + target->target_number,
1, gdb_new_connection, gdb_input,
gdb_connection_closed,
gdb_service);
add_service("gdb", CONNECTION_PIPE, 0, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
LOG_DEBUG("gdb service for target %s at port %i",
target->type->name,
gdb_port + target->target_number);
target = target->next;
LOG_DEBUG("gdb service for target %s using pipes", target->type->name);
}
else
{
while (target)
{
gdb_service = malloc(sizeof(gdb_service_t));
gdb_service->target = target;
add_service("gdb", CONNECTION_TCP, gdb_port + target->target_number, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
LOG_DEBUG("gdb service for target %s at port %i", target->type->name, gdb_port + target->target_number);
target = target->next;
}
}
return ERROR_OK;
}

192
src/server/server.c
View File

@@ -53,6 +53,9 @@ service_t *services = NULL;
static int shutdown_openocd = 0;
int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* set when using pipes rather than tcp */
int server_use_pipes = 0;
int add_connection(service_t *service, command_context_t *cmd_ctx)
{
unsigned int address_size;
@@ -69,28 +72,44 @@ int add_connection(service_t *service, command_context_t *cmd_ctx)
c->priv = NULL;
c->next = NULL;
address_size = sizeof(c->sin);
c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
/* This increases performance dramatically for e.g. GDB load which
* does not have a sliding window protocol. */
retval=setsockopt(c->fd, /* socket affected */
IPPROTO_TCP, /* set option at TCP level */
TCP_NODELAY, /* name of option */
(char *)&flag, /* the cast is historical cruft */
sizeof(int)); /* length of option value */
if (service->type == CONNECTION_TCP)
{
address_size = sizeof(c->sin);
LOG_INFO("accepting '%s' connection from %i", service->name, c->sin.sin_port);
if ((retval = service->new_connection(c)) == ERROR_OK)
{
c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
/* This increases performance dramatically for e.g. GDB load which
* does not have a sliding window protocol. */
retval=setsockopt(c->fd, /* socket affected */
IPPROTO_TCP, /* set option at TCP level */
TCP_NODELAY, /* name of option */
(char *)&flag, /* the cast is historical cruft */
sizeof(int)); /* length of option value */
LOG_INFO("accepting '%s' connection from %i", service->name, c->sin.sin_port);
if ((retval = service->new_connection(c)) != ERROR_OK)
{
close_socket(c->fd);
LOG_ERROR("attempted '%s' connection rejected", service->name);
free(c);
return retval;
}
}
else
else if (service->type == CONNECTION_PIPE)
{
close_socket(c->fd);
LOG_ERROR("attempted '%s' connection rejected", service->name);
free(c);
return retval;
#ifndef _WIN32
c->fd = service->fd;
/* do not check for new connections again on stdin */
service->fd = -1;
#endif
LOG_INFO("accepting '%s' connection from pipe", service->name);
if ((retval = service->new_connection(c)) != ERROR_OK)
{
LOG_ERROR("attempted '%s' connection rejected", service->name);
free(c);
return retval;
}
}
/* add to the end of linked list */
@@ -113,7 +132,8 @@ int remove_connection(service_t *service, connection_t *connection)
if (c->fd == connection->fd)
{
service->connection_closed(c);
close_socket(c->fd);
if (service->type == CONNECTION_TCP)
close_socket(c->fd);
command_done(c->cmd_ctx);
/* delete connection */
@@ -150,44 +170,67 @@ int add_service(char *name, enum connection_type type, unsigned short port, int
c->priv = priv;
c->next = NULL;
if ((c->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
if (type == CONNECTION_TCP)
{
LOG_ERROR("error creating socket: %s", strerror(errno));
exit(-1);
}
setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int));
socket_nonblock(c->fd);
memset(&c->sin, 0, sizeof(c->sin));
c->sin.sin_family = AF_INET;
c->sin.sin_addr.s_addr = INADDR_ANY;
c->sin.sin_port = htons(port);
if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1)
{
LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
exit(-1);
}
if ((c->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
LOG_ERROR("error creating socket: %s", strerror(errno));
exit(-1);
}
setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int));
socket_nonblock(c->fd);
memset(&c->sin, 0, sizeof(c->sin));
c->sin.sin_family = AF_INET;
c->sin.sin_addr.s_addr = INADDR_ANY;
c->sin.sin_port = htons(port);
if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1)
{
LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
exit(-1);
}
#ifndef _WIN32
int segsize=65536;
setsockopt(c->fd, IPPROTO_TCP, TCP_MAXSEG, &segsize, sizeof(int));
int segsize=65536;
setsockopt(c->fd, IPPROTO_TCP, TCP_MAXSEG, &segsize, sizeof(int));
#endif
int window_size = 128 * 1024;
/* These setsockopt()s must happen before the listen() */
int window_size = 128 * 1024;
setsockopt(c->fd, SOL_SOCKET, SO_SNDBUF,
(char *)&window_size, sizeof(window_size));
setsockopt(c->fd, SOL_SOCKET, SO_RCVBUF,
(char *)&window_size, sizeof(window_size));
if (listen(c->fd, 1) == -1)
/* These setsockopt()s must happen before the listen() */
setsockopt(c->fd, SOL_SOCKET, SO_SNDBUF,
(char *)&window_size, sizeof(window_size));
setsockopt(c->fd, SOL_SOCKET, SO_RCVBUF,
(char *)&window_size, sizeof(window_size));
if (listen(c->fd, 1) == -1)
{
LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
exit(-1);
}
}
else if (type == CONNECTION_PIPE)
{
LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
exit(-1);
/* use stdin */
c->fd = STDIN_FILENO;
#ifdef _WIN32
/* for win32 set stdin/stdout to binary mode */
if (_setmode(_fileno(stdout), _O_BINARY) < 0)
LOG_WARNING("cannot change stdout mode to binary");
if (_setmode(_fileno(stdin), _O_BINARY) < 0)
LOG_WARNING("cannot change stdin mode to binary");
#else
socket_nonblock(c->fd);
#endif
}
else
{
LOG_ERROR("unknown connection type: %d", type);
exit(1);
}
/* add to the end of linked list */
@@ -310,14 +353,18 @@ int server_loop(command_context_t *command_context)
#ifndef _WIN32
#if BUILD_ECOSBOARD == 0
/* add STDIN to read_fds */
FD_SET(fileno(stdin), &read_fds);
if (server_use_pipes == 0)
{
/* add STDIN to read_fds */
FD_SET(fileno(stdin), &read_fds);
}
#endif
#endif
openocd_sleep_prelude();
kept_alive();
// Only while we're sleeping we'll let others run
/* Only while we're sleeping we'll let others run */
retval = select(fd_max + 1, &read_fds, NULL, NULL, &tv);
openocd_sleep_postlude();
@@ -371,11 +418,14 @@ int server_loop(command_context_t *command_context)
}
else
{
struct sockaddr_in sin;
unsigned int address_size = sizeof(sin);
int tmp_fd;
tmp_fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
close_socket(tmp_fd);
if (service->type != CONNECTION_PIPE)
{
struct sockaddr_in sin;
unsigned int address_size = sizeof(sin);
int tmp_fd;
tmp_fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
close_socket(tmp_fd);
}
LOG_INFO("rejected '%s' connection, no more connections allowed", service->name);
}
}
@@ -389,11 +439,16 @@ int server_loop(command_context_t *command_context)
{
if ((FD_ISSET(c->fd, &read_fds)) || c->input_pending)
{
if (service->input(c) != ERROR_OK)
if ((retval = service->input(c)) != ERROR_OK)
{
connection_t *next = c->next;
if (service->type == CONNECTION_PIPE)
{
/* if connection uses a pipe then shutdown openocd on error */
shutdown_openocd = 1;
}
remove_connection(service, c);
LOG_INFO("dropped '%s' connection", service->name);
LOG_INFO("dropped '%s' connection - error %d", service->name, retval);
c = next;
continue;
}
@@ -405,11 +460,15 @@ int server_loop(command_context_t *command_context)
#ifndef _WIN32
#if BUILD_ECOSBOARD == 0
if (FD_ISSET(fileno(stdin), &read_fds))
/* check for data on stdin if not using pipes */
if (server_use_pipes == 0)
{
if (getc(stdin) == 'x')
if (FD_ISSET(fileno(stdin), &read_fds))
{
shutdown_openocd = 1;
if (getc(stdin) == 'x')
{
shutdown_openocd = 1;
}
}
}
#endif
@@ -459,7 +518,6 @@ int server_init(void)
signal(SIGBREAK, sig_handler);
signal(SIGABRT, sig_handler);
#endif
return ERROR_OK;
}

7
src/server/server.h
View File

@@ -34,9 +34,8 @@
enum connection_type
{
CONNECTION_GDB,
CONNECTION_TELNET,
CONNECTION_TCL,
CONNECTION_TCP,
CONNECTION_PIPE
};
typedef struct connection_s
@@ -76,6 +75,8 @@ extern int server_quit(void);
extern int server_loop(command_context_t *command_context);
extern int server_register_commands(command_context_t *context);
extern int server_use_pipes;
#define ERROR_SERVER_REMOTE_CLOSED (-400)
#define ERROR_CONNECTION_REJECTED (-401)

2
src/server/tcl_server.c
View File

@@ -179,7 +179,7 @@ int tcl_init(void)
tcl_port = 6666;
}
retval = add_service("tcl", CONNECTION_TCL, tcl_port, 1, tcl_new_connection, tcl_input, tcl_closed, NULL);
retval = add_service("tcl", CONNECTION_TCP, tcl_port, 1, tcl_new_connection, tcl_input, tcl_closed, NULL);
return retval;
}

2
src/server/telnet_server.c
View File

@@ -615,7 +615,7 @@ int telnet_init(char *banner)
telnet_service->banner = banner;
add_service("telnet", CONNECTION_TELNET, telnet_port, 1, telnet_new_connection, telnet_input, telnet_connection_closed, telnet_service);
add_service("telnet", CONNECTION_TCP, telnet_port, 1, telnet_new_connection, telnet_input, telnet_connection_closed, telnet_service);
return ERROR_OK;
}