Commit Graph

408 Commits

Author SHA1 Message Date
Andrew Turner
53ee135632 Copy new attribute types when linking. bfd will copy attributes as needed,
however it will fail to output them if the type is not set correctly. This
can happen when it finds an attribute it hasn't seen before, for example
when building shared objects it will use the attributes from crti.o, hwever
this file has no attributes set.

Differential Revision:	https://reviews.freebsd.org/D2413
Reviewed by:	imp
2015-05-05 10:35:29 +00:00
Warner Losh
729a1e1dec For eabi 5 (what FreeBSD uses), be sure to tag all executables and
shared libraries as either SOFT or HARD float to comply with the EABI
standard.

Differential Revision: https://reviews.freebsd.org/D2401
2015-05-03 22:51:42 +00:00
Warner Losh
f321ea7845 When merging the floating point type attribute, and reporting an error
when things don't match, report which file has them and which one
doesn't correctly.

Differential Revision: https://reviews.freebsd.org/D2400
2015-05-03 22:51:29 +00:00
Andrew Turner
ef25e82143 More ARM EABI object attributes in binutils. This adds support to binutils
to include the Unaligned Access and Floating-point Half-precision
attributes. the former marks ELF objects that may access ARMv6 style
unaligned data, the latter that the binary uses the VFPv3/Advanced SIMD
half-precision extension.

These may be emmitted by clang so it's best to print a warning when the
linker hits one of them.

Differential Revision:	http://reviews.freebsd.org/D2194
Submitted by:	Michal Meloun <meloun@miracle.cz>
MFC after:	1 week
2015-04-03 19:33:26 +00:00
Baptiste Daroussin
1d0f6813ac Remove pregenerated text version of the texinfo documentation 2015-03-02 17:25:03 +00:00
Baptiste Daroussin
7bb36fb551 Generate manpage out of the texinfo files using texi2mdoc 2015-03-02 17:20:34 +00:00
Ed Maste
4b8807a4d3 GNU nm: Avoid NULL dereference
bfd_dwarf2_find_line() calls find_line() with NULL functionname_ptr,
which resulted in a crash on certain ELF objects.

This change was implemented independently from upstream binutils, but
I have checked that the crash does not happen there.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2015-02-25 22:12:37 +00:00
Nathan Whitehorn
8a5843ad02 Add some opcodes for assembling forthcoming VSX (Vector-Scalar eXtension)
support in the kernel. Userspace programs are expected to rely on LLVM's
integrated assembler or newer binutils.
2015-02-22 20:52:29 +00:00
Tijl Coosemans
99e1a2bc3a 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
2015-02-11 17:25:23 +00:00
Baptiste Daroussin
bbb0fbde9a Add pregenerated documentation for as(1) and ld(1) 2015-01-04 00:58:30 +00:00
Baptiste Daroussin
4a3e081c7b Fix generating documentation with modern texinfo 2015-01-04 00:54:29 +00:00
Baptiste Daroussin
321f9e5ad9 Fix generating documents with modern texinfo 2015-01-04 00:44:24 +00:00
Dimitry Andric
db39fc2a01 In contrib/binutils/bfd/elf32-ppc.c, avoid warnings about case values
not being in the enumerated type 'enum elf_ppc_reloc_type', by casting
the switch argument to int.

MFC after:	3 days
2014-12-29 00:10:43 +00:00
Dimitry Andric
efabc957c5 In contrib/binutils/gas/config/tc-ppc.c, fix a few -Wformat-security
warnings.

MFC after:	3 days
2014-12-28 21:06:03 +00:00
Pedro F. Giffuni
e63365a089 Backport fix for binutils 11867: .quad directive not assembled correctly
Alan Modra (and Alan's employer) graciously permitted use of his patch
under GPLv2.

Obtained from:	OpenBSD
MFC after:	5 days
2014-12-26 04:33:53 +00:00
Pedro F. Giffuni
32d0bb7e1b gas: use memmove instead of bogus memcpy.
partial_where points into the buffer that begins with buffer_start
so we need to use memmove() to handle the overlap.
Sourceware-PR 11456.

Obtained from:	OpenBSD (CVS rev. 1.2)
MFC after:	3 days
2014-12-26 03:03:41 +00:00
Justin Hibbits
e5701220a8 Make gas parse '__tls_get_addr(foo@tlsgd)'.
Corresponds to 727fc41e077139570ea8b8ddfd6c546b2a55627c.

This allows us to use -no-integrated-as with clang, if we prefer.

Obtained from:	binutils-gdb (Relicensed from Alan Modra as GPLv2)
MFC after:	2 weeks
X-MFC-with:	r275718
2014-12-18 03:12:46 +00:00
Justin Hibbits
ff0bab9760 Add new PowerPC relocations to binutils
Summary:
LLVM/Clang generates relocations that our binutils doesn't understand, but newer
binutils does.  I got permission from the author of a series of patches to
relicense them as GPLv2 for use in FreeBSD.  The upstream git hashes are:

ac2df442ac7901f00af15b272fc48b594b433713
2b95367962dc14f69d3c338c4d54195266e2e169
102890f04c44b64cf5cef4588267dd9f24086ac7
b7fcf6f6bb53b5027e111107f5416769cb9a5798
1d483afedd5a628dc84fb58d1d570f79fdfbfa7b
90aecf7a80c1cefeb45fc10a6cd02c8338e34b4c
3a71aa26df2a372a58e9c11ef9ba51fd0e83320a
727fc41e077139570ea8b8ddfd6c546b2a55627c

With the import of clang 3.5, and a few backported patches, we should be able to
move powerpc and powerpc64 to clang-as-cc soon.

Test Plan: Passes make tinderbox, so no regressions.  Binaries built with clang
run on powerpc64.

Reviewers: #committers, dim

Reviewed By: dim

Differential Revision: https://reviews.freebsd.org/D1297

Obtained from:	Alan Modra, upstream binutils-gdb git
MFC after:	3 weeks
Relnotes:	yes
2014-12-12 03:58:51 +00:00
Andrew Turner
6ed7db33bc Fix mrc and mrc2 with APSR_nzcv. Binutils encodes it internally as 0 where
we need it to be set to 15 for it to be equivalent to r15.

MFC after:	1 week
X-MFC with:	r275415
Sponsored by:	ABT Systems Ltd
2014-12-07 21:47:19 +00:00
Andrew Turner
06b6b5da5e Allow the UAL APSR_nzcv format for the mrc and mrc2 instructions. The clang
integrated assembler only allows these forms so binutils will need to
support them.

MFC after:	1 Week
Sponsored by:	AB Systems Ltd
2014-12-02 18:12:16 +00:00
Dimitry Andric
2d764cca51 Let GNU ld be less obscure about missing symbols and DSOs. If the BFD
object looks like a typical shared library, suggest adding '-l<foo>',
where <foo> has the 'lib' prefix and '.so<bar>' or '.a' suffix removed.

Otherwise, suggest adding '-l:<foo>', where <foo> is the full DT_SONAME.

Submitted by:	Conrad Meyer <conrad.meyer@isilon.com>
Sponsored by:	EMC / Isilon storage division
Reviewed by:	emaste
PR:		194296
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D1152
2014-12-02 01:30:53 +00:00
Andrew Turner
da063e9d8c Use llabs when getting the absolute value of a long long.
Sponsored by:	ABT Ststems Ltd
2014-11-30 17:27:24 +00:00
Baptiste Daroussin
c04c768107 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
2014-11-29 11:50:19 +00:00
Dimitry Andric
5008830b51 Avoid undefined behaviour in gas's rotate_left() macro for n == 0.
Otherwise, clang can effectively remove the first iteration of the for
loops where this macro is invoked, and as a result, "cmp r0, #99" fails
to assemble.

Obtained from:	joerg at netbsd
MFC after:	3 days
2014-11-22 16:30:31 +00:00
John Baldwin
180e57e5c7 Improve support for XSAVE with debuggers.
- Dump an NT_X86_XSTATE note if XSAVE is in use. This note is designed
  to match what Linux does in that 1) it dumps the entire XSAVE area
  including the fxsave state, and 2) it stashes a copy of the current
  xsave mask in the unused padding between the fxsave state and the
  xstate header at the same location used by Linux.
- Teach readelf() to recognize NT_X86_XSTATE notes.
- Change PT_GET/SETXSTATE to take the entire XSAVE state instead of
  only the extra portion. This avoids having to always make two
  ptrace() calls to get or set the full XSAVE state.
- Add a PT_GET_XSTATE_INFO which returns the length of the current
  XSTATE save area (so the size of the buffer needed for PT_GETXSTATE)
  and the current XSAVE mask (%xcr0).

Differential Revision:	https://reviews.freebsd.org/D1193
Reviewed by:	kib
MFC after:	2 weeks
2014-11-21 20:53:17 +00:00
Baptiste Daroussin
66c8095956 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
2014-10-10 06:24:09 +00:00
Andrew Turner
9514a9d161 Merge the big-endian ARM targets together, and the little-endian ARM
targets. With this we assume any ARM target containing eb is big-endian,
otherwise it is little-endian.
2014-10-05 11:06:22 +00:00
Andrew Turner
e0d0c7b8f3 Silence a warning about Tag_Virtualization_use being unknown. We don't
handle merging this tag correctly, however it's unused.
2014-10-04 14:30:16 +00:00
Andrew Turner
657be2acf7 Add movw and movt relocations to the list of relocations against function
names that must nnot be adjusted. This fixes a bug where code such as:
movw r2, :lower16:symbol
movt r2, :upper16:symbol

It is common for clang to generate such code when targeting armv7.
2014-10-04 13:14:37 +00:00
Andrew Turner
0162755064 Allow vld and vst instructions to use the canonical form from ARM ARM when
including an alignment. Previously binutils would only allow instructions
in the form "vld1.64 {d0, d1}, [r0, :128]" where the final comma should
not be there, instead the above instruction should be
"vld1.64 {d0, d1}, [r0:128]".

This change duplicates the alignment code from within the function to
handle this case.
2014-10-03 15:07:43 +00:00
Andrew Turner
cb08295d5d Add all the dmb/dsb optional limitations, including the alternative values.
These are needed for some code llvm generates when targeting ARMv7.
2014-10-03 12:20:37 +00:00
Andrew Turner
671302a908 Allow the optional limitation on dmb instructions as is already the case
with dsb instructions.
2014-10-03 12:14:19 +00:00
Tijl Coosemans
caf5f7a84c 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
2014-08-28 18:33:42 +00:00
Ian Lepore
2d0ef32f84 Teach as(1) to handle the arm .arch_extension pseudo-op, which accepts
the same values as the -march= command line option.  Add support for the
"sec" extension (security extensions).

We've been getting away without support for the sec extension because
it's bogusly enabled even on arches where its presence is optional.  This
support for .arch_extension is being added mainly so that we can use the
right directives in our source code, and that helps folks using external
toolchains (and will help us when we finally update our toolchain).
2014-08-01 20:30:24 +00:00
Ian Lepore
b7ea64e98d Fix an bug in as(1) parsing of arm -march=arch+ext options. Compare the
arch name to just the characters before the '+' in 'arch+ext'.
2014-08-01 20:21:41 +00:00
John Baldwin
2ea259616a Add support for the 'rdseed' instruction. 2014-05-18 03:57:54 +00:00
Dimitry Andric
aa5cdf0136 For GNU as, add two missing modes for each of the fcomip and fucomip
instructions.  Partially obtained from OpenBSD by Pedro Giffuni, while I
added the fcomip variants.

Apparently this should help with compiling certain variants of WebKit.

MFC after:	3 days
2014-04-07 21:12:09 +00:00
Andrew Turner
73279d4113 Add a new ARM TARGET_ARCH, armv6hf. This is considered experimental.
This targets the existing ARMv6 and ARMv7 SoCs that contain a VFP unit.
This is an optional coprocessors may not be present in all devices, however
it appears to be in all current SoCs we support.

armv6hf targets the VFP variant of the ARM EABI and our copy of gcc is too
old to support this. Because of this there are a number of WITH/WITHOUT
options that are unsupported and must be left as the default value. The
options and their required value are:
 * WITH_ARM_EABI
 * WITHOUT_GCC
 * WITHOUT_GNUCXX

In addition, without an external toolchain, the following need to be left
as their default:
 * WITH_CLANG
 * WITH_CLANG_IS_CC

As there is a different method of passing float and double values to
functions the ABI is incompatible with existing armv6 binaries. To use
this a full rebuild of world is required. Because no floating point values
are passed into the kernel an armv6 kernel with VFP enabled will work with
an armv6hf userland and vice versa.
2014-03-23 12:49:25 +00:00
Justin Hibbits
1d5f07dc97 Make gas accept any PowerPC instruction by default. This is a local change,
and will not be submitted upstream.

Discussed with:	nwhitehorn,rdivacky
MFC after:	1 month
2014-02-03 01:45:07 +00:00
Pedro F. Giffuni
887bf737ad binutils: add support for Intel SMAP-related instructions
Add support for stac/clac instructions to manipulate the flag
that controls the behaviour of Intel's Supervisor Mode Access
Prevention (SMAP) feature.

Tested by:	dim
Obtained from:	OpenBSD
MFC after:	5 days
2014-01-26 00:37:21 +00:00
Marcel Moolenaar
e153be43ae Fix cross-compilation of ia64 target code with clang. 2013-12-28 22:52:46 +00:00
Pedro F. Giffuni
0944614655 cxxfilt: small changes from Apple's developer tools
From Apple's Developer Tools 4.0 [1]:

demangle.patch
2007-05-05  Geoffrey Keating
	(d_name): Detect local-source-name.
	(d_prefix): Likewise.
	(d_unqualified_name): Implement local-source-name.

libiberty-printf.patch

MFC after:	1 month

[1] http://opensource.apple.com/source/cxxfilt/cxxfilt-9/patches/
2013-11-11 21:18:02 +00:00
Sean Bruno
a9f8a8772a Queisce warning about attempting to add char * together and use explicit
array indexing to indicate what is meant to be done
2013-10-31 18:53:39 +00:00
Sean Bruno
9113c7c613 Queisce warning about attempting to add char * together and use explicit
array indexing to indicate what is meant to be done
2013-10-31 18:53:13 +00:00
Sean Bruno
06dce123b6 Queisce warning about empty bodies in these loops by bumping the ;; to the
next line.
2013-10-29 20:35:28 +00:00
Eygene Ryabinkin
4ba4bea936 binutils/bfd: fix printf-like format strings for "bfd *" arguments
There is a special format argument '%B' that directly handles values
of type 'bfd *', they must be used instead of '%s'.  Manifestations
of this bug can be seen in ld(1) error messages, for example,
  http://lists.freebsd.org/pipermail/freebsd-current/2013-August/043580.html
  http://lists.freebsd.org/pipermail/freebsd-current/2013-October/045404.html

Approved by:	dim
MFC after:	2 weeks
2013-10-29 04:25:49 +00:00
Ed Maste
9773a1f20f Don't force 64-bit DWARF2 on MIPS
64-bit debug data is only necessary for objects with greater than 4GB of
debug data, and is not used on other 64-bit FreeBSD targets.

Sponsored by:	DARPA, AFRL
2013-10-21 20:38:02 +00:00
Andrew Turner
9bff0a1d6a Merge from projects/arm_eabi_vfp r255380:
Fix the VCVT instruction. It must round towards zero when converting from
a floating-point to an integer value. This was not the case causing issues
when printing certain values.

There is a VCVTR instruction that will round depending on the current
rounding mode. We don't yet support this instruction, or setting the
rounding mode.
2013-10-20 15:13:32 +00:00
Ed Maste
1b182736a6 Fix .debug_line prologue header length calculation for 64-bit DWARF
The header_length field is the number of bytes following the field to
the first byte of the line number program.  The hard-coded constants
previously here (4 + 2 + 4) were correct only for 32-bit DWARF.

Sponsored by:	DARPA, AFRL
2013-10-17 17:25:00 +00:00
Dimitry Andric
e1a5a8a74a Add support for assembling and disassembling Intel Random Number
Generator extensions (e.g. the 'rdrand' mnemonic) to our copy of
binutils.

Approved by:	re (kib)
Obtained from:	OpenBSD, via pfg
MFC after:	1 week
2013-10-07 16:33:16 +00:00