Das U-Boot: Universal Boot Loader

diff --git a/include/asm-ppc/sigcontext.h b/include/asm-ppc/sigcontext.h
new file mode 100644 (file)
index 0000000..4bd66a7
--- /dev/null
+++ b/include/asm-ppc/sigcontext.h
@@ -0,0 +1,15 @@
+#ifndef _ASM_PPC_SIGCONTEXT_H
+#define _ASM_PPC_SIGCONTEXT_H
+
+#include <asm/ptrace.h>
+
+
+struct sigcontext_struct {
+       unsigned long   _unused[4];
+       int             signal;
+       unsigned long   handler;
+       unsigned long   oldmask;
+       struct pt_regs  *regs;
+};
+
+#endif

diff --git a/tools/gdb/error.c b/tools/gdb/error.c
new file mode 100644 (file)
index 0000000..aea2901
--- /dev/null
+++ b/tools/gdb/error.c
@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "error.h"
+
+char *pname;
+
+void
+Warning(char *fmt, ...)
+{
+    va_list args;
+
+    fprintf(stderr, "%s: WARNING: ", pname);
+
+    va_start(args, fmt);
+    vfprintf(stderr, fmt, args);
+    va_end(args);
+
+    fprintf(stderr, "\n");
+}
+
+void
+Error(char *fmt, ...)
+{
+    va_list args;
+
+    fprintf(stderr, "%s: ERROR: ", pname);
+
+    va_start(args, fmt);
+    vfprintf(stderr, fmt, args);
+    va_end(args);
+
+    fprintf(stderr, "\n");
+
+    exit(1);
+}
+
+void
+Perror(char *fmt, ...)
+{
+    va_list args;
+    int e = errno;
+    char *p;
+
+    fprintf(stderr, "%s: ERROR: ", pname);
+
+    va_start(args, fmt);
+    vfprintf(stderr, fmt, args);
+    va_end(args);
+
+    if ((p = strerror(e)) == NULL || *p == '\0')
+       fprintf(stderr, ": Unknown Error (%d)\n", e);
+    else
+       fprintf(stderr, ": %s\n", p);
+
+    exit(1);
+}

diff --git a/tools/gdb/error.h b/tools/gdb/error.h
new file mode 100644 (file)
index 0000000..907709f
--- /dev/null
+++ b/tools/gdb/error.h
@@ -0,0 +1,7 @@
+#include <stdarg.h>
+
+extern char *pname;
+
+extern void Warning(char *, ...);
+extern void Error(char *, ...);
+extern void Perror(char *, ...);

diff --git a/tools/gdb/gdbcont.c b/tools/gdb/gdbcont.c
new file mode 100644 (file)
index 0000000..ee9553c
--- /dev/null
+++ b/tools/gdb/gdbcont.c
@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "serial.h"
+#include "error.h"
+#include "remote.h"
+
+char *serialdev = "/dev/term/b";
+speed_t speed = B230400;
+int verbose = 0;
+
+int
+main(int ac, char **av)
+{
+    int c, sfd;
+
+    if ((pname = strrchr(av[0], '/')) == NULL)
+       pname = av[0];
+    else
+       pname++;
+
+    while ((c = getopt(ac, av, "b:p:v")) != EOF)
+       switch (c) {
+
+       case 'b':
+           if ((speed = cvtspeed(optarg)) == B0)
+               Error("can't decode baud rate specified in -b option");
+           break;
+
+       case 'p':
+           serialdev = optarg;
+           break;
+
+       case 'v':
+           verbose = 1;
+           break;
+
+       default:
+       usage:
+           fprintf(stderr, "Usage: %s [-b bps] [-p dev] [-v]\n", pname);
+           exit(1);
+       }
+    if (optind != ac)
+       goto usage;
+
+    if (verbose)
+       fprintf(stderr, "Opening serial port and sending continue...\n");
+
+    if ((sfd = serialopen(serialdev, speed)) < 0)
+       Perror("open of serial device '%s' failed", serialdev);
+
+    remote_desc = sfd;
+    remote_reset();
+    remote_continue();
+
+    if (serialclose(sfd) < 0)
+       Perror("close of serial device '%s' failed", serialdev);
+
+    if (verbose)
+       fprintf(stderr, "Done.\n");
+
+    return (0);
+}

diff --git a/tools/gdb/gdbsend.c b/tools/gdb/gdbsend.c
new file mode 100644 (file)
index 0000000..d46ab48
--- /dev/null
+++ b/tools/gdb/gdbsend.c
@@ -0,0 +1,114 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "serial.h"
+#include "error.h"
+#include "remote.h"
+
+char *serialdev = "/dev/term/b";
+speed_t speed = B230400;
+int verbose = 0, docont = 0;
+unsigned long addr = 0x10000UL;
+
+int
+main(int ac, char **av)
+{
+    int c, sfd, ifd;
+    char *ifn, *image;
+    struct stat ist;
+
+    if ((pname = strrchr(av[0], '/')) == NULL)
+       pname = av[0];
+    else
+       pname++;
+
+    while ((c = getopt(ac, av, "a:b:cp:v")) != EOF)
+       switch (c) {
+
+       case 'a': {
+           char *ep;
+
+           addr = strtol(optarg, &ep, 0);
+           if (ep == optarg || *ep != '\0')
+               Error("can't decode address specified in -a option");
+           break;
+       }
+
+       case 'b':
+           if ((speed = cvtspeed(optarg)) == B0)
+               Error("can't decode baud rate specified in -b option");
+           break;
+
+       case 'c':
+           docont = 1;
+           break;
+
+       case 'p':
+           serialdev = optarg;
+           break;
+
+       case 'v':
+           verbose = 1;
+           break;
+
+       default:
+       usage:
+           fprintf(stderr,
+               "Usage: %s [-a addr] [-b bps] [-c] [-p dev] [-v] imagefile\n",
+               pname);
+           exit(1);
+       }
+
+    if (optind != ac - 1)
+       goto usage;
+    ifn = av[optind++];
+
+    if (verbose)
+       fprintf(stderr, "Opening file and reading image...\n");
+
+    if ((ifd = open(ifn, O_RDONLY)) < 0)
+       Perror("can't open kernel image file '%s'", ifn);
+
+    if (fstat(ifd, &ist) < 0)
+       Perror("fstat '%s' failed", ifn);
+
+    if ((image = (char *)malloc(ist.st_size)) == NULL)
+       Perror("can't allocate %ld bytes for image", ist.st_size);
+
+    if ((c = read(ifd, image, ist.st_size)) < 0)
+       Perror("read of %d bytes from '%s' failed", ist.st_size, ifn);
+
+    if (c != ist.st_size)
+       Error("read of %ld bytes from '%s' failed (%d)", ist.st_size, ifn, c);
+
+    if (close(ifd) < 0)
+       Perror("close of '%s' failed", ifn);
+
+    if (verbose)
+       fprintf(stderr, "Opening serial port and sending image...\n");
+
+    if ((sfd = serialopen(serialdev, speed)) < 0)
+       Perror("open of serial device '%s' failed", serialdev);
+
+    remote_desc = sfd;
+    remote_reset();
+    remote_write_bytes(addr, image, ist.st_size);
+
+    if (docont) {
+       if (verbose)
+           fprintf(stderr, "[continue]");
+       remote_continue();
+    }
+
+    if (serialclose(sfd) < 0)
+       Perror("close of serial device '%s' failed", serialdev);
+
+    if (verbose)
+       fprintf(stderr, "Done.\n");
+
+    return (0);
+}

diff --git a/tools/gdb/remote.h b/tools/gdb/remote.h
new file mode 100644 (file)
index 0000000..bfc4a1f
--- /dev/null
+++ b/tools/gdb/remote.h
@@ -0,0 +1,5 @@
+extern int remote_desc, remote_timeout;
+
+extern void remote_reset(void);
+extern void remote_continue(void);
+extern int remote_write_bytes(unsigned long, char *, int);

diff --git a/tools/gdb/serial.h b/tools/gdb/serial.h
new file mode 100644 (file)
index 0000000..60629bd
--- /dev/null
+++ b/tools/gdb/serial.h
@@ -0,0 +1,11 @@
+#include <termios.h>
+
+#define SERIAL_ERROR   -1      /* General error, see errno for details */
+#define SERIAL_TIMEOUT -2
+#define SERIAL_EOF     -3
+
+extern speed_t cvtspeed(char *);
+extern int serialopen(char *, speed_t);
+extern int serialreadchar(int, int);
+extern int serialwrite(int, char *, int);
+extern int serialclose(int);