Re: [PATCH] Replace ROUND with ALIGN_UP by p_align [BZ #22370]

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Sat, Nov 11, 2017 at 6:49 AM, Andreas Schwab <schwab@linux-m68k.org> wrote:
> On Nov 11 2017, "H.J. Lu" <hjl.tools@gmail.com> wrote:
>
>> The gABI says:
>>
>> In 64-bit objects (files with e_ident[EI_CLASS] equal to ELFCLASS64),
>> each entry is an array of 8-byte words in the format of the target
>> processor. In 32-bit objects (files with e_ident[EI_CLASS] equal to
>> ELFCLASS32), each entry is an array of 4-byte words in the format of
>> the target processor.
>>
>> Since .note.ABI-tag and .note.gnu.build-id notes are aligned to 4
>> bytes in 64-bit object while .note.gnu.property notes are aligned
>> to 8 bytes in 64-bit object, we have to check p_align in program
>> header for note alignment in PT_NOTE segments.
>
> I don't see any reference to the segment alignment in the quote above.
>

The full text is

---
Note Section

Sometimes a vendor or system builder needs to mark an object file with
special information that other programs will check for conformance,
compatibility, etc. Sections of type SHT_NOTE and program header
elements of type PT_NOTE can be used for this purpose. The note
information in sections and program header elements holds a variable
amount of entries. In 64-bit objects (files with e_ident[EI_CLASS]
equal to ELFCLASS64), each entry is an array of 8-byte words in the
format of the target processor. In 32-bit objects (files with
e_ident[EI_CLASS] equal to ELFCLASS32), each entry is an array of
4-byte words in the format of the target processor. Labels appear
below to help explain note information organization, but they are not
part of the specification.
---

You tell me what note alignment in PT_NOTE segment is.


-- 
H.J.