* Code cleanup:

  - remove trailing white space, trailing empty lines, C++ comments, etc.
  - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

* Patches by Kenneth Johansson, 25 Jun 2003:
  - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)

1 files changed, 71 insertions, 72 deletions

diff --git a/lib_i386/zimage.c b/lib_i386/zimage.c
index 9d33b2d..3510f2f 100644
--- a/lib_i386/zimage.c
+++ b/lib_i386/zimage.c
@@ -1,7 +1,7 @@
 /*
  * (C) Copyright 2002
  * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- * 
+ *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
@@ -21,10 +21,10 @@
  * MA 02111-1307 USA
  */
 
-/* 
+/*
  * Linux i386 zImage and bzImage loading
- * 
- * based on the procdure described in 
+ *
+ * based on the procdure described in
  * linux/Documentation/i386/boot.txt
  */
 
@@ -37,10 +37,10 @@
 
 /*
  * Memory lay-out:
- * 
+ *
  * relative to setup_base (which is 0x90000 currently)
- * 
- *	0x0000-0x7FFF	Real mode kernel   
+ *
+ *	0x0000-0x7FFF	Real mode kernel
  *	0x8000-0x8FFF	Stack and heap
  *	0x9000-0x90FF	Kernel command line
  */
@@ -53,53 +53,53 @@
 static void build_command_line(char *command_line, int auto_boot)
 {
 	char *env_command_line;
-	
+
 	command_line[0] = '\0';
-	
+
 	env_command_line =  getenv("bootargs");
-	
+
 	/* set console= argument if we use a serial console */
 	if (NULL == strstr(env_command_line, "console=")) {
 		if (0==strcmp(getenv("stdout"), "serial")) {
-			
+
 			/* We seem to use serial console */
-			sprintf(command_line, "console=ttyS0,%s ", 
+			sprintf(command_line, "console=ttyS0,%s ",
 				 getenv("baudrate"));
 		}
 	}
-	
+
 	if (auto_boot) {
 		strcat(command_line, "auto ");
 	}
-		
+
 	if (NULL != env_command_line) {
 		strcat(command_line, env_command_line);
-	} 
-	
-	
+	}
+
+
 	printf("Kernel command line: \"%s\"\n", command_line);
 }
 
-void *load_zimage(char *image, unsigned long kernel_size, 
+void *load_zimage(char *image, unsigned long kernel_size,
 		  unsigned long initrd_addr, unsigned long initrd_size,
 		  int auto_boot)
 {
-        void *setup_base;
+	void *setup_base;
 	int setup_size;
 	int bootproto;
 	int big_image;
 	void *load_address;
-	
-	
+
+
 	setup_base = (void*)DEFAULT_SETUP_BASE;	/* base address for real-mode segment */
-	
- 	if (KERNEL_MAGIC != *(u16*)(image + BOOT_FLAG_OFF)) {
+
+	if (KERNEL_MAGIC != *(u16*)(image + BOOT_FLAG_OFF)) {
 		printf("Error: Invalid kernel magic (found 0x%04x, expected 0xaa55)\n",
 		       *(u16*)(image + BOOT_FLAG_OFF));
 		return 0;
 	}
-	
-	
+
+
 	/* determine boot protocol version */
 	if (KERNEL_V2_MAGIC == *(u32*)(image+HEADER_OFF)) {
 		bootproto = *(u16*)(image+VERSION_OFF);
@@ -107,108 +107,107 @@ void *load_zimage(char *image, unsigned long kernel_size,
 		/* Very old kernel */
 		bootproto = 0x0100;
 	}
-	
+
 	/* determine size of setup */
 	if (0 == *(u8*)(image + SETUP_SECTS_OFF)) {
 		setup_size = 5 * 512;
 	} else {
 		setup_size = (*(u8*)(image + SETUP_SECTS_OFF) + 1) * 512;
 	}
-	
+
 	if (setup_size > SETUP_MAX_SIZE) {
 		printf("Error: Setup is too large (%d bytes)\n", setup_size);
 	}
-	
+
 	/* Determine image type */
-  	big_image = (bootproto >= 0x0200) && (*(u8*)(image + LOADFLAGS_OFF) & BIG_KERNEL_FLAG);
-	
+	big_image = (bootproto >= 0x0200) && (*(u8*)(image + LOADFLAGS_OFF) & BIG_KERNEL_FLAG);
+
 	/* Derermine load address */
 	load_address = (void*)(big_image ? BZIMAGE_LOAD_ADDR:ZIMAGE_LOAD_ADDR);
-			
+
 	/* load setup */
 	memmove(setup_base, image, setup_size);
-	
-	printf("Using boot protocol version %x.%02x\n", 
+
+	printf("Using boot protocol version %x.%02x\n",
 	       (bootproto & 0xff00) >> 8, bootproto & 0xff);
-	
-	
-	if (bootproto == 0x0100) {		
-	
+
+
+	if (bootproto == 0x0100) {
+
 		*(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC;
-		*(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; 
-		
+		*(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET;
+
 		/* A very old kernel MUST have its real-mode code
 		 * loaded at 0x90000 */
-		
+
 		if ((u32)setup_base != 0x90000) {
 			/* Copy the real-mode kernel */
 			memmove((void*)0x90000, setup_base, setup_size);
 			/* Copy the command line */
-			memmove((void*)0x99000, setup_base+COMMAND_LINE_OFFSET, 
+			memmove((void*)0x99000, setup_base+COMMAND_LINE_OFFSET,
 			       COMMAND_LINE_SIZE);
-			
+
 			setup_base = (void*)0x90000;		 /* Relocated */
 		}
-		
+
 		/* It is recommended to clear memory up to the 32K mark */
 		memset((void*)0x90000 + setup_size, 0, SETUP_MAX_SIZE-setup_size);
 	}
-	
+
 	if (bootproto >= 0x0200) {
 		*(u8*)(setup_base + TYPE_OF_LOADER_OFF) = 0xff;
-		printf("Linux kernel version %s\n", 
-		       (char*)(setup_base + SETUP_START_OFFSET + 
+		printf("Linux kernel version %s\n",
+		       (char*)(setup_base + SETUP_START_OFFSET +
 			       *(u16*)(setup_base + START_SYS_OFF + 2)));
-		
+
 		if (initrd_addr) {
 			printf("Initial RAM disk at linear address 0x%08lx, size %ld bytes\n",
 			       initrd_addr, initrd_size);
-			
+
 			*(u32*)(setup_base + RAMDISK_IMAGE_OFF) = initrd_addr;
 			*(u32*)(setup_base + RAMDISK_SIZE_OFF)=initrd_size;
 		}
 	}
-	
+
 	if (bootproto >= 0x0201) {
 		*(u16*)(setup_base + HEAP_END_PTR_OFF) = HEAP_END_OFFSET;
-		
+
 		/* CAN_USE_HEAP */
-		*(u8*)(setup_base + LOADFLAGS_OFF) = 
+		*(u8*)(setup_base + LOADFLAGS_OFF) =
 			*(u8*)(setup_base + LOADFLAGS_OFF) | HEAP_FLAG;
 	}
-	
+
 	if (bootproto >= 0x0202) {
 		*(u32*)(setup_base + CMD_LINE_PTR_OFF) = (u32)setup_base + COMMAND_LINE_OFFSET;
 	} else if (bootproto >= 0x0200) {
 		*(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC;
-		*(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; 
+		*(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET;
 		*(u16*)(setup_base + SETUP_MOVE_SIZE_OFF) = 0x9100;
 	}
-	
 
-	
+
 	if (big_image) {
-		if ((kernel_size - setup_size) > BZIMAGE_MAX_SIZE) { 
+		if ((kernel_size - setup_size) > BZIMAGE_MAX_SIZE) {
 			printf("Error: bzImage kernel too big! (size: %ld, max: %d)\n",
 			       kernel_size - setup_size, BZIMAGE_MAX_SIZE);
 			return 0;
 		}
-		
+
 	} else if ((kernel_size - setup_size) > ZIMAGE_MAX_SIZE) {
 		printf("Error: zImage kernel too big! (size: %ld, max: %d)\n",
 		       kernel_size - setup_size, ZIMAGE_MAX_SIZE);
 		return 0;
 	}
-	
+
 	/* build command line at COMMAND_LINE_OFFSET */
 	build_command_line(setup_base + COMMAND_LINE_OFFSET, auto_boot);
-	
-        printf("Loading %czImage at address 0x%08x (%ld bytes)\n", big_image ? 'b' : ' ', 
+
+	printf("Loading %czImage at address 0x%08x (%ld bytes)\n", big_image ? 'b' : ' ',
 	       (u32)load_address, kernel_size - setup_size);
 
-	       
+
 	memmove(load_address, image + setup_size, kernel_size - setup_size);
-	
+
 	/* ready for booting */
 	return setup_base;
 }
@@ -217,7 +216,7 @@ void *load_zimage(char *image, unsigned long kernel_size,
 void boot_zimage(void *setup_base)
 {
 	struct pt_regs regs;
-	
+
 	memset(&regs, 0, sizeof(struct pt_regs));
 	regs.xds = (u32)setup_base >> 4;
 	regs.xss = 0x9000;
@@ -228,18 +227,18 @@ void boot_zimage(void *setup_base)
 
 
 image_header_t *fake_zimage_header(image_header_t *hdr, void *ptr, int size)
-{	
+{
 	/* There is no way to know the size of a zImage ... *
 	 * so we assume that 2MB will be enough for now */
 #define ZIMAGE_SIZE 0x200000
-	
+
 	/* load a 1MB, the loaded will have to be moved to its final
 	 * position again later... */
 #define ZIMAGE_LOAD 0x100000
-	
+
 	ulong checksum;
-	
- 	if (KERNEL_MAGIC != *(u16*)(ptr + BOOT_FLAG_OFF)) {
+
+	if (KERNEL_MAGIC != *(u16*)(ptr + BOOT_FLAG_OFF)) {
 		/* not a zImage or bzImage */
 		return NULL;
 	}
@@ -247,13 +246,13 @@ image_header_t *fake_zimage_header(image_header_t *hdr, void *ptr, int size)
 	if (-1 == size) {
 		size = ZIMAGE_SIZE;
 	}
-#if 0	
+#if 0
 	checksum = crc32 (0, ptr, size);
 #else
 	checksum = 0;
-#endif		
+#endif
 	memset(hdr, 0, sizeof(image_header_t));
-	
+
 	/* Build new header */
 	hdr->ih_magic = htonl(IH_MAGIC);
 	hdr->ih_time  = 0;
@@ -271,6 +270,6 @@ image_header_t *fake_zimage_header(image_header_t *hdr, void *ptr, int size)
 	checksum = crc32(0,(const char *)hdr,sizeof(image_header_t));
 
 	hdr->ih_hcrc = htonl(checksum);
-	
+
 	return hdr;
 }