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H.J. Lu 650444eb54 elf: Properly compute offsets of note descriptor and next note
According to gABI, in a note entry, the note name field, not note name
size, is padded for the note descriptor.  And the note descriptor field,
not note descriptor size, is padded for the next note entry.  Also notes
are aligned to 4 bytes in 32-bit objects and 8 bytes in 64-bit objects.
Since on Linux, .note.ABI-tag and .note.gnu.build-id notes are always
aligned to 4 bytes, we need to use alignment of note section or note
segment, instead of assuming alignment based on ELF file class.

Tested on i686 and x86-64.

bfd/

	PR binutils/22444
	* elf.c (elf_read_notes): Add an argument for note aligment.
	(elf_parse_notes): Likewise.
	(_bfd_elf_make_section_from_shdr): Pass section aligment to
	elf_parse_notes.
	(bfd_section_from_phdr): Pass segment aligment to elf_read_notes.
	(elf_parse_notes): Add an argument for note aligment.  Use
	ELF_NOTE_DESC_OFFSET to get the offset of the note descriptor.
	Use ELF_NOTE_NEXT_OFFSET to get the offset of the next note
	entry.
	(elf_read_notes): Add an argument for note aligment and pass it
	to elf_parse_notes.

binutils/

	PR binutils/22444
	* readelf.c (process_notes_at): Use ELF_NOTE_DESC_OFFSET to get
	the offset of the note descriptor.  Use ELF_NOTE_NEXT_OFFSET to
	get the offset of the next note entry.

include/

	PR binutils/22444
	* elf/external.h (ELF_ALIGN_UP): New.
	(ELF_NOTE_DESC_OFFSET): Likewise.
	(ELF_NOTE_NEXT_OFFSET): Likewise.
2017-11-24 06:41:52 -08:00
bfd elf: Properly compute offsets of note descriptor and next note 2017-11-24 06:41:52 -08:00
binutils elf: Properly compute offsets of note descriptor and next note 2017-11-24 06:41:52 -08:00
config
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gas x86: reject further invalid AVX-512 masking constructs 2017-11-24 08:42:57 +01:00
gdb cooked_read test for readonly regcache 2017-11-24 13:04:30 +00:00
gold Fix typo in ChangeLog entry. 2017-11-19 18:02:31 -08:00
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include elf: Properly compute offsets of note descriptor and next note 2017-11-24 06:41:52 -08:00
intl Require ngettext in test of system gettext implementation 2017-11-07 15:56:44 +10:30
ld Add libmsvcrt, libmsvcrt-os and libucrtbase to the list of libraries for which the automatic generation of exported variables should be disabled. 2017-11-23 12:07:24 +00:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

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the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.