Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c
new file mode 100644
index 0000000..93dc191
--- /dev/null
+++ b/arch/um/drivers/xterm.c
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <termios.h>
+#include <signal.h>
+#include <sched.h>
+#include <sys/socket.h>
+#include "kern_util.h"
+#include "chan_user.h"
+#include "helper.h"
+#include "user_util.h"
+#include "user.h"
+#include "os.h"
+#include "xterm.h"
+
+struct xterm_chan {
+ int pid;
+ int helper_pid;
+ char *title;
+ int device;
+ int raw;
+ struct termios tt;
+ unsigned long stack;
+ int direct_rcv;
+};
+
+/* Not static because it's called directly by the tt mode gdb code */
+void *xterm_init(char *str, int device, struct chan_opts *opts)
+{
+ struct xterm_chan *data;
+
+ data = malloc(sizeof(*data));
+ if(data == NULL) return(NULL);
+ *data = ((struct xterm_chan) { .pid = -1,
+ .helper_pid = -1,
+ .device = device,
+ .title = opts->xterm_title,
+ .raw = opts->raw,
+ .stack = opts->tramp_stack,
+ .direct_rcv = !opts->in_kernel } );
+ return(data);
+}
+
+/* Only changed by xterm_setup, which is a setup */
+static char *terminal_emulator = "xterm";
+static char *title_switch = "-T";
+static char *exec_switch = "-e";
+
+static int __init xterm_setup(char *line, int *add)
+{
+ *add = 0;
+ terminal_emulator = line;
+
+ line = strchr(line, ',');
+ if(line == NULL) return(0);
+ *line++ = '\0';
+ if(*line) title_switch = line;
+
+ line = strchr(line, ',');
+ if(line == NULL) return(0);
+ *line++ = '\0';
+ if(*line) exec_switch = line;
+
+ return(0);
+}
+
+__uml_setup("xterm=", xterm_setup,
+"xterm=<terminal emulator>,<title switch>,<exec switch>\n"
+" Specifies an alternate terminal emulator to use for the debugger,\n"
+" consoles, and serial lines when they are attached to the xterm channel.\n"
+" The values are the terminal emulator binary, the switch it uses to set\n"
+" its title, and the switch it uses to execute a subprocess,\n"
+" respectively. The title switch must have the form '<switch> title',\n"
+" not '<switch>=title'. Similarly, the exec switch must have the form\n"
+" '<switch> command arg1 arg2 ...'.\n"
+" The default values are 'xterm=xterm,-T,-e'. Values for gnome-terminal\n"
+" are 'xterm=gnome-terminal,-t,-x'.\n\n"
+);
+
+/* XXX This badly needs some cleaning up in the error paths
+ * Not static because it's called directly by the tt mode gdb code
+ */
+int xterm_open(int input, int output, int primary, void *d,
+ char **dev_out)
+{
+ struct xterm_chan *data = d;
+ unsigned long stack;
+ int pid, fd, new, err;
+ char title[256], file[] = "/tmp/xterm-pipeXXXXXX";
+ char *argv[] = { terminal_emulator, title_switch, title, exec_switch,
+ "/usr/lib/uml/port-helper", "-uml-socket",
+ file, NULL };
+
+ if(os_access(argv[4], OS_ACC_X_OK) < 0)
+ argv[4] = "port-helper";
+
+ /* Check that DISPLAY is set, this doesn't guarantee the xterm
+ * will work but w/o it we can be pretty sure it won't. */
+ if (!getenv("DISPLAY")) {
+ printk("xterm_open: $DISPLAY not set.\n");
+ return -ENODEV;
+ }
+
+ fd = mkstemp(file);
+ if(fd < 0){
+ printk("xterm_open : mkstemp failed, errno = %d\n", errno);
+ return(-errno);
+ }
+
+ if(unlink(file)){
+ printk("xterm_open : unlink failed, errno = %d\n", errno);
+ return(-errno);
+ }
+ os_close_file(fd);
+
+ fd = os_create_unix_socket(file, sizeof(file), 1);
+ if(fd < 0){
+ printk("xterm_open : create_unix_socket failed, errno = %d\n",
+ -fd);
+ return(fd);
+ }
+
+ sprintf(title, data->title, data->device);
+ stack = data->stack;
+ pid = run_helper(NULL, NULL, argv, &stack);
+ if(pid < 0){
+ printk("xterm_open : run_helper failed, errno = %d\n", -pid);
+ return(pid);
+ }
+
+ if(data->stack == 0) free_stack(stack, 0);
+
+ if (data->direct_rcv) {
+ new = os_rcv_fd(fd, &data->helper_pid);
+ } else {
+ err = os_set_fd_block(fd, 0);
+ if(err < 0){
+ printk("xterm_open : failed to set descriptor "
+ "non-blocking, err = %d\n", -err);
+ return(err);
+ }
+ new = xterm_fd(fd, &data->helper_pid);
+ }
+ if(new < 0){
+ printk("xterm_open : os_rcv_fd failed, err = %d\n", -new);
+ goto out;
+ }
+
+ CATCH_EINTR(err = tcgetattr(new, &data->tt));
+ if(err){
+ new = err;
+ goto out;
+ }
+
+ if(data->raw){
+ err = raw(new);
+ if(err){
+ new = err;
+ goto out;
+ }
+ }
+
+ data->pid = pid;
+ *dev_out = NULL;
+ out:
+ unlink(file);
+ return(new);
+}
+
+/* Not static because it's called directly by the tt mode gdb code */
+void xterm_close(int fd, void *d)
+{
+ struct xterm_chan *data = d;
+
+ if(data->pid != -1)
+ os_kill_process(data->pid, 1);
+ data->pid = -1;
+ if(data->helper_pid != -1)
+ os_kill_process(data->helper_pid, 0);
+ data->helper_pid = -1;
+ os_close_file(fd);
+}
+
+static void xterm_free(void *d)
+{
+ free(d);
+}
+
+static int xterm_console_write(int fd, const char *buf, int n, void *d)
+{
+ struct xterm_chan *data = d;
+
+ return(generic_console_write(fd, buf, n, &data->tt));
+}
+
+struct chan_ops xterm_ops = {
+ .type = "xterm",
+ .init = xterm_init,
+ .open = xterm_open,
+ .close = xterm_close,
+ .read = generic_read,
+ .write = generic_write,
+ .console_write = xterm_console_write,
+ .window_size = generic_window_size,
+ .free = xterm_free,
+ .winch = 1,
+};
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */