MFC r315522: use INT3 instead of NOP for x86 binary padding

We should never end up executing the inter-function padding, so we
are better off faulting than silently carrying on to whatever function
happens to be next.

Note that LLD does this by default.

Sponsored by: The FreeBSD Foundation

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove pregenerated text version of the texinfo documentation

Generate manpage out of the texinfo files using texi2mdoc

Fix ldscripts such that ld(1) collects the .fini_array section in the same
order as the .init_array section. Finalisation routines need to be called
in the opposite order as their corresponding initialisation routines but
rtld(1) handles that by calling the function pointers in .fini_array in
reverse order.

Reviewed by: kib
MFC after: 2 weeks

Add pregenerated documentation for as(1) and ld(1)

Fix generating documentation with modern texinfo

Implement --no-fatal-warning for compatibility with newer ld
what ever order the options are passed to ld(1) the --no-fatal-warning always
disable --fatal-warning

Rename elf*-powerpc into elf*-powerpc-freebsd in binutils

The powerpc support was the only supported architecture not prepending the elf format name
with "-freebsd" in base this change makes it consistent with other architectures.
On newer version of binutils the powerpc format is also prepended with "-freebsd".

Also modify the kernel ldscripts in that regards.

As a result it is now possible cross build the kernel on powerpc using newer binutils

Differential Revision: https://reviews.freebsd.org/D926
Differential Revision: https://reviews.freebsd.org/D928

In r253839 the default behaviour of ld(1) was changed such that all
libraries that need to be linked into an executable or library have to be
listed on the command line explicitly. This commit fixes a bug in ld(1)
where it would scan dependencies of the libraries on the command line and
link them if needed if they were also found in ld.so.cache.

The important bit of the patch is the initialisation of needed.by such that
libraries found by scanning dependencies are marked as such and not used in
the link.

The patch is a backport of binutils git commit
d5c8b1f8561426b41aa5330ed60f578178fe6be2

The author gave permission to use it under GPLv2 terms.

PR: 192062
Exp-run by: antoine
MFC after: 1 week

Change default behaviour of ld(1) to not recursively copy DT_NEEDED

This is the default behaviour of the newer binutils as well as most alternative linkers.
All the ports tree has been fixed to be able to link properly with this new behaviour.

Improve compatibility with recent flex from flex.sourceforge.net.

Revert r234656, and apply a proper fix for binutils PR 10474, which
caused linking clang on 32-bit PowerPC to fail with "relocation
truncated to fit: R_PPC_REL24" errors.

Original diffs (relicensed under GPLv2 with permission from author):
http://sourceware.org/git/?p=binutils.git;a=commit;h=1fd262ff7d7ea5adf4894c6b960e092e7e43e3cd
http://sourceware.org/git/?p=binutils.git;a=commit;h=053c49fbff58bd33bd0d12200ea61302f92caceb

Tested by: andreast
MFC after: 1 week

Rename the linker emulation name for powerpc and powerc64. This is needed that
we can also use the upstream binutils linker where we have to have a unique
name for the FreeBSD emulation.

Fix clang warnings.

Approved by: philip (mentor)

Add .interp back into INITIAL_READONLY_SECTIONS in MIPS n64 ABI.

The binutils update in r218822 caused the MIPS n64 dynamic binaries to
fail because the ".interp" section is not in the initial sections.
This happens because elf64bmip-defs.sh overrides INITIAL_READONLY_SECTIONS
to add ".MIPS.options" sections instead of the ".reginfo" section used
by n32.
This used to work fine, but after r218822, INITIAL_READONLY_SECTIONS also
contains the .interp section, so the override has to be done differently.

Reported by : aduane at juniper

Obtained from: gonzo (Initial version)

Fix clang warnings.

Approved by: philip (mentor)

Merge binutils 2.17.50 to head. This brings a number of improvements to
x86 CPU support, better support for powerpc64, some new directives, and
many other things. Bump __FreeBSD_version, and add a note to UPDATING.

Thanks to the many people that have helped to test this.

Obtained from: projects/binutils-2.17

On PowerPC64, linker emits a fake object into each linked object,
'linker stubs'. Add .note.GNU-stack for the stubs objects. Without this,
final binary will have RWE mode for PT_GNU_STACK regardless of the
actual requirements.

Tested by: nwhitehorn
Reviewed by: dim, nwhitehorn

Add a workaround for the warnings and sometimes errors due to missed
forward-declaration.

Reviewed by: dim

binutils/ld: fix incorrect placement of __start_SECNAME in some cases

__start_SECNAME and __stop_SECNAME symbols are automatically generated
by ld for orphan sections, i.e. those not explicitely referenced by a
linker script. The symbols are supposed to be placed correspondingly
at the start and the end of the section in output file. In some cases
__start_SECNAME may be placed at the address after the end of the
previous section (if any) and before the start the section. This
happens when following conditions are met:
1. the orphan section is found in more than one input file
2. the orphan section has different alignment requirements across input
files
3. the first instance of the section encountered doesn't have the
greatest alignment requirement
In these conditions resulting output section will be placed at address
after the end of the previous section aligned to the greatest alignment
requirement in the inputs, but __start_SECNAME will be placed at address
after the end of the previous section aligned to the alignment
requirement of the first input in which the section is encountered.

See commit message of r196118 for a concrete example of problems caused
by this bug.

The fix is to place __start_SECNAME inside the section and use ABSOLUTE
directive, rather than placing __start_SECNAME outside the section and
trying to guess address alignment.

This fix is in line with upstream binutils change/fix made between
versions 2.19 and 2.20 in revision of 1.307 ldlang.c.

MFC after: 3 weeks

Teach our toolchain how to generate 64-bit PowerPC binaries. This fixes
a variety of bugs in binutils related to handling of 64-bit PPC ELF,
provides a GCC configuration for 64-bit PowerPC on FreeBSD, and
associated build systems tweaks.

Obtained from: projects/ppc64

Push mips support into the tree.

This commit was generated by cvs2svn to compensate for changes in r179404,
which included commits to RCS files with non-trunk default branches.

This commit was generated by cvs2svn to compensate for changes in r131722,
which included commits to RCS files with non-trunk default branches.

Update HEAD with the stock binutils_2_15_20040523 file.

Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF hints) into
Binutils 2.15.

Merge rev 1.2 (FreeBSD a.out configuration support) into Binutils 2.15.

This commit was generated by cvs2svn to compensate for changes in r130561,
which included commits to RCS files with non-trunk default branches.

This commit was generated by cvs2svn to compensate for changes in r111756,
which included commits to RCS files with non-trunk default branches.

Update HEAD with the stock files.

Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF hints)
into the Binutils 2.13.2 20021128 snap.

GC some stuff I thought was long gone.

This commit was generated by cvs2svn to compensate for changes in r107492,
which included commits to RCS files with non-trunk default branches.

Try to keep CVS from pissing over the next binutils import by returning
to purely stock files.

Use the stock version of this.

Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF hints)
into Binutils 2.13.1 snap.

Bring the binutils_2_13_20021110_snap version of this to the HEAD branch.

Bring the 2.13 snap version of this to the HEAD branch.

Use the stock 2.13.1 snapshot version of this.

Merge rev 1.2 (FreeBSD a.out configuration support) into the
Binutils 2.13_20021110 snap.

This commit was generated by cvs2svn to compensate for changes in r104834,
which included commits to RCS files with non-trunk default branches.

Remove these Bintuils 2.11 files that aren't part of 2.12.

This commit was generated by cvs2svn to compensate for changes in r102729,
which included commits to RCS files with non-trunk default branches.

Merge rev 1.2 (FreeBSD a.out configuration support) into the
Binutils 2.12_20020622 snap.

Use the stock 2.12.1 snapshot version of this.

Use the stock version of this.

This commit was generated by cvs2svn to compensate for changes in r99461,
which included commits to RCS files with non-trunk default branches.

Use the stock 2.12 snapshot version of this.

Merge rev 1.2 (FreeBSD a.out configuration support) into the
Binutils 2.12_20020410 snap.

This commit was generated by cvs2svn to compensate for changes in r94536,
which included commits to RCS files with non-trunk default branches.

Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF hints)
into Binutils 2.12.0.

Use the stock version of this.

Bring the 2.12.0 release version of this to the HEAD branch.

This commit was generated by cvs2svn to compensate for changes in r92828,
which included commits to RCS files with non-trunk default branches.

Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF hints)
into Binutils 2.12_20020221_snap.

Bring the binutils_2_12_20020221_snap version of this to the HEAD branch.

Merge rev 1.2 (FreeBSD a.out configuration support) into
Binutils 2.12_20020221_snap.

This commit was generated by cvs2svn to compensate for changes in r91041,
which included commits to RCS files with non-trunk default branches.

Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF hints)
into Binutils 2.12.0_snap.

Bring the binutils_2_12_cvs_20020127 version of this to the HEAD branch.

Use the stock 2.12.0_snap version of this.

Merge rev 1.2 (FreeBSD a.out configuration support) into Binutils 2.12.0_snap.

This commit was generated by cvs2svn to compensate for changes in r89857,
which included commits to RCS files with non-trunk default branches.

Update to the latest vendor's file.

Bring the binutils_2_11_cvs_20011031 version of this to the HEAD branch.

This merges in the changes from the FSF 19-July-2001 snapshot to the
2001 Halloween snapshot.

This commit was generated by cvs2svn to compensate for changes in r85815,
which included commits to RCS files with non-trunk default branches.

This commit was generated by cvs2svn to compensate for changes in r84865,
which included commits to RCS files with non-trunk default branches.

This merges in the changes from the 2.11.2 release to the FSF anoncvs
19-July-2001 snapshot.

This commit was generated by cvs2svn to compensate for changes in r80016,
which included commits to RCS files with non-trunk default branches.

Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF hints)
into Binutils 2.11.2.

We use the stock (2.11.2) version of this now.

Merge rev 1.2 (FreeBSD configuration support) into Binutils 2.11.2.

This commit was generated by cvs2svn to compensate for changes in r78828,
which included commits to RCS files with non-trunk default branches.

Merge rev 1.2 into Binutils 2.11[.0].
Teach `ld' how to access FreeBSD's ld ELF hints.

We use the stock version of this file now.
I committed our rev 1.2 (start symbol) and 1.3 (max pagesize) fixes into
the FSF/GNU source tree.

We use the stock version of this file.

We use the stock version of this file now.
I committed all the new FreeBSD platform support (PPC, StrongARM, Sparc64)
into the FSF/GNU tree.

Merge rev 1.2 (FreeBSD configuration support) into Binutils 2.11[.0].

This commit was generated by cvs2svn to compensate for changes in r77298,
which included commits to RCS files with non-trunk default branches.

* include/elf.h has been repo copied to include/elf-hints.h, and it no
longer includes machine/elf.h.
* consumers of elf.h now use the minimalist elf header possible.

This change is motivated by Binutils 2.11.0 and too much clashing over
our base elf headers and the Binutils elf headers.

Remove binutils 2.9.1 files that are not part of 2.10.x.

Merge rev 1.2 into Binutils 2.10.1.

Teach `ld' about FreeBSD (ie, fix the All the World's Linux) and how to
access our ld ELF hints.

Merge conflicts. Adds revs 1.2 and 1.3 (FreeBSD configuration support),
and preliminary sparc, strongarm, PPC FreeBSD support to Binutils 2.10.1.

Merge rev 1.2 (FreeBSD configuration support) into Binutils 2.10.1.

This commit was generated by cvs2svn to compensate for changes in r68765,
which included commits to RCS files with non-trunk default branches.

Merge conflicts. Adds revs 1.2 and 1.3 (FreeBSD configuration support),
and preliminary sparc, strongarm, PPC FreeBSD support.

This commit was generated by cvs2svn to compensate for changes in r61843,
which included commits to RCS files with non-trunk default branches.

Merge in rev 1.2 (ld was kinly looking up the Linux /etc/ld.so.conf so teach
it about the FreeBSD equivalent) This version of that patch selects the
Linux code only if the case is Linux. This puts the Linux code on par with
the FreeBSD code.

Tweaks for i386, add alpha, ppc, sparc, and strongarm support.

Use the stock vendor version of this file now.

Merge in revs 1.2 and 1.3 (FreeBSD configuration support)
Add preliminary sparc, strongarm, PPC FreeBSD support.

Merge in rev 1.2 (FreeBSD configuration support)

This commit was generated by cvs2svn to compensate for changes in r60484,
which included commits to RCS files with non-trunk default branches.

This commit was generated by cvs2svn to compensate for changes in r59024,
which included commits to RCS files with non-trunk default branches.

The maximum pagesize for alpha is 64k, not 1Mb.

Fix typos.

PR: docs/8682
Submitted by: hnokubi@yyy.or.jp
Reviewed by: nik

Change default entry point from `__start' to `_start' which is in crt1.o.
Cc doesn't need to pass `-e _start' to ld anymore.

Agreed by: gallatin and dfr

This commit was generated by cvs2svn to compensate for changes in r44348,
which included commits to RCS files with non-trunk default branches.

ld was kinly looking up the Linux /etc/ld.so.conf (which we don't have).
Teach it about the FreeBSD equivalent, because there are some funny things
going on with -rpath that I can't quite get a handle on. It looks like
setting an rpath on a new shared object overrides all the implicit
DT_RPATH's from the dependencies, causing them to fail at link time
(but not runtime).

Resolve conflicts from import of binutils-2.9.1.

Submitted by: Doug Rabson <dfr>

This commit was generated by cvs2svn to compensate for changes in r38889,
which included commits to RCS files with non-trunk default branches.

Add a FreeBSD entry for alpha-elf.

Configuration changes to support FreeBSD. The linker only works for
ELF, not a.out. But all the other tools support both. I'm not so
sure about the assembler -- it might need more work.

This commit was generated by cvs2svn to compensate for changes in r33965,
which included commits to RCS files with non-trunk default branches.