From: Roger Pau Monné Date: Sat, 23 Jun 2018 19:32:03 +0000 (+0200) Subject: multiboot2: Clarify usage of the address tag X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fheads%2Fmultiboot2;p=thirdparty%2Fgrub.git multiboot2: Clarify usage of the address tag Add a note to spell out that if the address tag is not present the file should be loaded using the elf header. Signed-off-by: Roger Pau Monné Reviewed-by: Daniel Kiper --- diff --git a/doc/multiboot.texi b/doc/multiboot.texi index 2e2d7e74a..df8a0d056 100644 --- a/doc/multiboot.texi +++ b/doc/multiboot.texi @@ -509,6 +509,14 @@ assumes that no bss segment is present. @end table +Note: This information does not need to be provided if the kernel image +is in @sc{elf} format, but it must be provided if the image is in a.out +format or in some other format. When the address tag is present it must +be used in order to load the image, regardless of whether an @sc{elf} +header is also present. Compliant boot loaders must be able to load +images that are either in @sc{elf} format or contain the address tag +embedded in the Multiboot2 header. + @subsection The entry address tag of Multiboot2 header @example