Fixed in Cilo I/O library; enhanced usability of lzma loader.

ciloio.c

@@ -38,7 +38,7 @@ int32_t cilo_seek(struct file *fp, uint32_t offset, uint8_t whence)
         else fp->file_pos += offset;
         break;
     case SEEK_END:
-        /* unimplemented */
+        fp->file_pos = fp->file_len;
         break;
     default:
         return 0;

lzma_loader.c

@@ -20,6 +20,8 @@ struct private_data {
     ILzmaInCallback callback;
     uint8_t *buffer;
     struct file *fp;
+    uint32_t total_read;
+    uint32_t last;
 };
 
 int read_data(void *object, const uint8_t **buffer, uint32_t *size)
@@ -30,11 +32,21 @@ int read_data(void *object, const uint8_t **buffer, uint32_t *size)
         printf("FATAL: Attempt to read past end of file. Aborting.\n");
         return LZMA_RESULT_DATA_ERROR;
     }
-
     
     *size = pvt->fp->file_len - cilo_tell(pvt->fp);
     *size = *size > 512 ? 512 : *size;
 
+    pvt->total_read += *size;
+
+    uint32_t done = (pvt->total_read * 100)/pvt->fp->file_len;
+    if (done % 10 == 0 && done != pvt->last) {
+        printf("%d", done);
+        pvt->last = done;
+    } else if (done != pvt->last && done % 2 == 0) {
+        printf(".");
+        pvt->last = done;
+    }
+
     cilo_read(pvt->buffer, *size, 1, pvt->fp);
 
     *buffer = pvt->buffer;
@@ -74,32 +86,28 @@ void load_lzma(struct file *fp, uint32_t load_address, char *cmd_line)
     cilo_seek(fp, 4, SEEK_CUR);
 
     uint16_t probs[LzmaGetNumProbs(&state.Properties)];
-    printf("Number of probability table entries: %d\n",
-        LzmaGetNumProbs(&state.Properties));
-
-    printf("Size of uncompressed file: %08x.\n", out_size);
 
     /* setup structs */
     pvt.callback.Read = read_data;
     pvt.buffer = buffer;
     pvt.fp = fp;
+    pvt.total_read = 0;
     state.Probs = probs;
+    pvt.last = 100;
     
     /* do the decoding */
     uint32_t out_processed = 0;
 
-    printf("Loading kernel at %08x\n", load_address);
-
     int result = LzmaDecode(&state, (ILzmaInCallback *)&pvt, 
         (uint8_t *)load_address, out_size, &out_processed);
 
     if (result != LZMA_RESULT_OK) {
-        printf("Error in decoding LZMA-compressed kernel image. Aborting.\n");
+        printf("\nError in decoding LZMA-compressed kernel image. Aborting.\n");
         return;
     }
 
     /* kick into kernel: */
-    printf("Starting LZMA decompressed kernel at %16x.\n", load_address);
+    printf("\nStarting kernel at 0x%016x.\n", load_address);
     ((void (*)(uint32_t mem_sz, char *cmd_line))(load_address))
         (c_memsz(), cmd_line);
 }

mach/c3600/promlib.c

@@ -62,7 +62,7 @@ void c_putsn(const char *s, int n)
  */
 char c_getc(void)
 {
-    char c;
+    volatile char c;
 
     asm ( ".set noreorder\n "
            "li $a0, %[syscall]\n"
@@ -94,7 +94,7 @@ int c_gets(char *b, int n)
         if (b[i - 1] == '\n' || b[i-1] == '\r') {
             break;
         }
-        else if (b[i - 1] == 0x8) {
+        else if (b[i - 1] == 0x8 || b[i - 1] == 0x7f) {
             i--;
         }
     } while (i < n);

main.c

@@ -108,7 +108,7 @@ enter_filename:
 
     struct file kernel_file = cilo_open(kernel);
 
-    if (kernel_file.code == 0) {
+    if (kernel_file.code == -1) {
         printf("Unable to find \"%s\" on the specified filesystem.\n",
             kernel);
         goto enter_filename;
@@ -119,16 +119,13 @@ enter_filename:
         printf("Loading LZMA-compressed kernel image.\n");
         load_lzma(&kernel_file, LOADADDR, cmd_line);
     } else {
-
+        printf("Booting %s.\n", kernel);
         struct elf32_header hdr;
 
         cilo_read(&hdr, sizeof(struct elf32_header), 1, &kernel_file);
-
         cilo_seek(&kernel_file, 0, SEEK_SET);
 
         /* check if this is a 32-bit or 64-bit kernel image. */
-
-        printf("Booting %s.\n", kernel);
         if (load_elf32_file(&kernel_file, cmd_line) 
             < 0) 
         {