[PATCH] Make the bzImage format self-terminating
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Frank Sorenson <frank@tuxrocks.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/i386/boot/setup.S b/arch/i386/boot/setup.S
index 8cb420f..ca668d9 100644
--- a/arch/i386/boot/setup.S
+++ b/arch/i386/boot/setup.S
@@ -82,7 +82,7 @@
# This is the setup header, and it must start at %cs:2 (old 0x9020:2)
.ascii "HdrS" # header signature
- .word 0x0203 # header version number (>= 0x0105)
+ .word 0x0204 # header version number (>= 0x0105)
# or else old loadlin-1.5 will fail)
realmode_swtch: .word 0, 0 # default_switch, SETUPSEG
start_sys_seg: .word SYSSEG
diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c
index 6835f6d..0579841 100644
--- a/arch/i386/boot/tools/build.c
+++ b/arch/i386/boot/tools/build.c
@@ -177,7 +177,9 @@
die("Output: seek failed");
buf[0] = (sys_size & 0xff);
buf[1] = ((sys_size >> 8) & 0xff);
- if (write(1, buf, 2) != 2)
+ buf[2] = ((sys_size >> 16) & 0xff);
+ buf[3] = ((sys_size >> 24) & 0xff);
+ if (write(1, buf, 4) != 4)
die("Write of image length failed");
return 0; /* Everything is OK */