This patch gives elfabi the ability to read DT_NEEDED entries from ELF binaries
to populate NeededLibs in TextAPI's ELFStub.

Differential Revision: https://reviews.llvm.org/D55852

llvm-svn: 351592

Set the test to properly require aarch64 instead of arm. Otherwise, this test fails with LLVM_TARGETS_TO_BUILD='ARM;X86'

bin/llvm-mc: : error: unable to get target for 'arm64-apple-ios7.0.0'

Committed on behalf of @easyaspi314 (Devin)

Differential Revision: https://reviews.llvm.org/D56472

llvm-svn: 351560

When -all-headers is given it is supposed to dump all headers,
but now it skips the archive headers for no reason.

The patch fixes that.

Differential revision: https://reviews.llvm.org/D56780

llvm-svn: 351547

llvm-svn: 351465

Summary:
objdump was interpreting the function header containing the locals
declaration as instructions. To parse these without injecting target
specific code in objdump, MCDisassembler::onSymbolStart was added to
be implemented by the WebAssembly implemention.

WasmObjectFile now returns a code offset for the "address" of a symbol,
rather than the index. This is also more in-line with what other
targets do.

Also ensured that the AsmParser correctly puts each function
in its own segment to enable this test case.

Reviewers: sbc100, dschuff

Subscribers: jgravelle-google, aheejin, sunfish, rupprecht, llvm-commits

Differential Revision: https://reviews.llvm.org/D56684

llvm-svn: 351460

This change adds demangling support to the ELF side of llvm-readobj,
under the switch --demangle/-C.

The following places are demangled: symbol table dumps (static and
dynamic), relocation dumps (static and dynamic), addrsig dumps, call
graph profile dumps, and group section signature symbols.

Although GNU readelf doesn't support demangling, it is still a useful
feature to have, and brings it on a par with llvm-objdump's
capabilities.

This fixes https://bugs.llvm.org/show_bug.cgi?id=40054.

Reviewed by: grimar, rupprecht

Differential Revision: https://reviews.llvm.org/D56791

llvm-svn: 351450

On Jaguar, horizontal adds/subs have local forwarding disable.
That means, we pay a compulsory extra cycle of write-back stage, and the value
is not available until the end of that stage.

This patch changes the latency of horizontal operations by adding an extra
cycle. With this patch, latency numbers now match what is reported by perf.

I plan to send another patch to also 'fix' the latency of shuffle operations (on
Jaguar, local forwarding is disabled for vector shuffles too).

Differential Revision: https://reviews.llvm.org/D56777

llvm-svn: 351366

This change gives the llvm-elfabi tool the ability to read DT_SONAME from a binary ELF file into an ELFStub.

Added:

 - DynamicEntries struct for storing dynamic entries that are relevant to elfabi.
 - terminatedSubstr() retrieves a null-terminated substring from a StringRef.
 - appendToError() appends a string to an error, allowing more specific error messages.

Differential Revision: https://reviews.llvm.org/D55629

llvm-svn: 351361

Differential Revision: https://reviews.llvm.org/D56369

llvm-svn: 351356

Summary:
When llvm-nm is passed only the --size-sort option for an object file, there is no output generated.
The commit modifies the behavior to print the symbols sorted and their size which is also inline with
the output of the GNU nm tool.

Signed-off-by: Saurabh Badhwar <sbsaurabhbadhwar9@gmail.com>

Reviewers: enderby, rupprecht

Reviewed By: rupprecht

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56063

llvm-svn: 351347

This allows avoiding conflicts between paths that begin with the same
chars as some llvm-rc options (which can be used with either slashes
or dashes).

Differential Revision: https://reviews.llvm.org/D56743

llvm-svn: 351305

This change bumps for version number of the wasm object file
metadata.

See https://github.com/WebAssembly/tool-conventions/pull/92

Differential Revision: https://reviews.llvm.org/D56758

llvm-svn: 351285

[llvm-ar] Resubmit recursive thin archive test with fix for full path names and better error messages

llvm-svn: 351256

Summary:
When running llvm-objdump with the -macho option objdump will by default
disassemble only the __TEXT,__text section (or __TEXT_EXEC,__text when
disassembling MH_KEXT_BUNDLE files). The -disassemble-all option is
treated no diferently than -disassemble.

This change upates llvm-objdump's MachO parsing code to disassemble all
__text sections found in a file when -disassemble-all is specified. This
is useful for disassembling files with more than one __text section, or
when disassembling files whose __text section is not present in __TEXT.

I added a lit test case that verifies "llvm-objdump -m -d" and 
"llvm-objdump -m -D" produce the expected results on a reference binary. 
I also updated the CommandGuide documentation for llvm-objdump.rst and
verified it renders correctly as man and html.

rdar://42899338

Reviewers: ab, pete, lhames

Reviewed By: lhames

Subscribers: rupprecht, llvm-commits

Differential Revision: https://reviews.llvm.org/D56649

llvm-svn: 351238

Summary:
This patch adds support for merged arguments (e.g. -SW == -S -W) for llvm-readelf.

No changes are intended for llvm-readobj. There are a few short flags (-sd, -sr, -st, -dt) that would conflict with grouped single letter flags, and having only some grouped flags might be confusing. So, allow merged flags for readelf compatibility, but force separate args for llvm-readobj. From what I can tell, these two-letter flags are only used with llvm-readobj, not llvm-readelf.

This fixes PR40064.

Reviewers: jhenderson, kristina, echristo, phosek

Reviewed By: jhenderson

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56629

llvm-svn: 351205

Summary:
Fix llvm-objcopy to add .note sections as SHT_NOTEs. GNU objcopy overrides section flags for special sections. For `.note` sections (with the exception of `.note.GNU-stack`), SHT_NOTE is used.

Many other sections are special cased by libbfd, but `.note` is the only special section I can seem to find being used with objcopy --add-section.

See `.note` in context of the full list of special sections here: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob;f=bfd/elf.c;h=eb3e1828e9c651678b95a1dcbc3b124783d1d2be;hb=HEAD#l2675

Reviewers: jhenderson, alexshap, jakehehrlich, espindola

Reviewed By: jhenderson

Subscribers: emaste, arichardson, llvm-commits

Differential Revision: https://reviews.llvm.org/D56570

llvm-svn: 351204

compiler identification lines in test-cases.

(Doing so only because it's then easier to search for references which
are actually important and need fixing.)

llvm-svn: 351200

Differential Revision: https://reviews.llvm.org/D56481

llvm-svn: 351174

llvm-svn: 351173

llvm-svn: 351126

Summary:
Normal behavior for GNU ar is to flatten thin archives when adding them to another thin archive, i.e. add the members directly instead of nesting the archive.

Some refactoring done as part of this patch to ease things:
 - Consolidate `addMember`/`addLibMember` methods
 - Rename `addMember` to `addChildMember` to make it more visibly different at the call site that an archive child is passed instead of a regular member
 - Pass in a separate vector and splice it back into position instead of passing a vector + optional Pos (which makes expanding libs tricky)

This fixes PR37530 as raised by https://github.com/ClangBuiltLinux/linux/issues/279.

Reviewers: mstorsjo, pcc, ruiu

Reviewed By: mstorsjo

Subscribers: llvm-commits, tpimh, nickdesaulniers

Differential Revision: https://reviews.llvm.org/D56508

llvm-svn: 351120

Differential Revision: https://reviews.llvm.org/D56660

llvm-svn: 351099

Differential Revision: https://reviews.llvm.org/D56659

llvm-svn: 351098

Summary: Provides -addresses, -a as aliases for -print-address. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40067.

Reviewers: jhenderson, ruiu, rnk, fjricci

Reviewed By: jhenderson

Subscribers: rupprecht, llvm-commits

Differential Revision: https://reviews.llvm.org/D56635

llvm-svn: 351043

This is for https://bugs.llvm.org/show_bug.cgi?id=40008,

it starts printing the file headers when --all-headers is given and
do a minor cosmetic change.

Differential revision: https://reviews.llvm.org/D56588

llvm-svn: 351006

Update test cases for Exynos M4.

llvm-svn: 350961

Summary:
As pointed out in D53667, our use of hyphens in flags can be inconsistent, mixing `-` with `--`. This change makes all long style flags use `--`.

Automatically changed via:

```
find test/tools/llvm-objcopy/ELF -type f | xargs sed -i 's/ -\([a-zA-Z]\{3\}\)/ --\1/g'
```

Two false positives were manually fixed/reverted.

Reviewers: jhenderson, espindola, alexshap

Reviewed By: jhenderson

Subscribers: emaste, javed.absar, arichardson, fedor.sergeev, jakehehrlich, llvm-commits

Differential Revision: https://reviews.llvm.org/D56513

llvm-svn: 350944

Differential Revision: https://reviews.llvm.org/D56480

llvm-svn: 350927

Previously, this was broken - by setting PointerToSymbolTable to zero
but still actually writing the string table length, the object file
header was corrupted.

Differential Revision: https://reviews.llvm.org/D56584

llvm-svn: 350926

Summary: Provides -exe, -e as aliases to -obj. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40071

Reviewers: ruiu, rnk, fjricci, jhenderson

Reviewed By: jhenderson

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56580

llvm-svn: 350925

It causes some (but not all) bots to fail. I'll look into it tomorrow
morning. Remove the tests for now to make the bots green.

llvm-svn: 350908

llvm-svn: 350899

Differential Revision: https://reviews.llvm.org/D55881

llvm-svn: 350893

This fails in http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/3208/steps/stage%201%20check/logs/stdio.

llvm-svn: 350871

llvm-svn: 350851

Instead of using the binary filename.

llvm-svn: 350849

In an assert build, the Error gets destroyed and we get "Program aborted
due to an unhandled Error:".

In release, we get an empty message.

llvm-svn: 350848

This is https://bugs.llvm.org/show_bug.cgi?id=26892,

GNU objdump hides the special symbol entry:

SYMBOL TABLE:
000000000000a7e0 l     F .text	00000000000003f9 bi_copymodules
while llvm-objdump does not:

SYMBOL TABLE:
0000000000000000         *UND*		 00000000 
000000000000a7e0 l     F .text		 000003f9 bi_copymodules

Patch makes the behavior of the llvm-objdump to be consistent with the GNU objdump.

Differential revision: https://reviews.llvm.org/D56076

llvm-svn: 350840

Summary: Provides -p as a short alias for -pretty-print. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40076

Reviewers: samsonov, khemant, ruiu, rnk, fjricci, jhenderson

Reviewed By: jhenderson

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56542

llvm-svn: 350832

See https://bugs.llvm.org/show_bug.cgi?id=40070.

GNU addr2line accepts input addresses both on the command-line and via
stdin. llvm-symbolizer previously only supported the latter. This
change adds support for the former. As with addr2line, the new
behaviour is to only look for addresses on stdin if no positional
arguments were provided to llvm-symbolizer.

Reviewed by: ruiu

Differential Revision: https://reviews.llvm.org/D56272

llvm-svn: 350821