Usually, a function that does symbol lookup takes symbol name as
its first argument. Also, if a function takes a source location hint,
it is usually the last parameter. So the previous parameter order
was counter-intuitive.

llvm-svn: 315433

Because of r314495, DefinedCommon symbols cannot reach to
getSymbolValue function. When they reach the fucntion, they have
already been converted to DefinedRegular symbols.

llvm-svn: 315432

llvm-svn: 315431

"process" was not a good name because everything can be named it.

llvm-svn: 315430

This fixes PR34908. Patch by Alex Crichton!

Differential Revision:  https://reviews.llvm.org/D38765

llvm-svn: 315429

llvm-svn: 315428

llvm-svn: 315427

llvm-svn: 315426

We should generally avoid static local variables.

llvm-svn: 315425

llvm-svn: 315424

llvm-svn: 315423

Even though they are called sequentially, they are separate
operations, so it is better to split it.

llvm-svn: 315422

llvm-svn: 315421

llvm-svn: 315420

llvm-svn: 315419

We used CurAddressState to capture a dynamic context just like
we use lambdas to capture static contexts. So, CurAddressState
is used everywhere in LinkerScript.cpp. It is worth a shorter
name.

llvm-svn: 315418

Revert "[llvm-objcopy] Add support for --strip-sections to remove all section headers leaving only program headers and loadable segment data"

This reverts commit rL315412

llvm-svn: 315417

llvm-svn: 315416

llvm-svn: 315415

llvm-svn: 315414

Should fix mingw bot.

llvm-svn: 315413

[llvm-objcopy] Add support for --strip-sections to remove all section headers leaving only program headers and loadable segment data

elf utils implements a particularly extreme form of stripping that I'd
like to support. eu-strip has an option called "strip-sections" that
removes all section headers and leaves only program headers and the
segment data. I have implemented this option partly as a test but mainly
because in Fuchsia we would like to use this option to minimize the size
of our executables. The other strip options that are on my list include
--strip-all and --strip-debug. This is a preliminary implementation that
I'd like to start using in Fuchsia builds if possible. This change
implements such a stripping option for llvm-objcopy

Differential Revision: https://reviews.llvm.org/D38335

llvm-svn: 315412

llvm-svn: 315411

MCObjectStreamer owns its MCAsmBackend -- this fixes the types to reflect that,
and allows us to remove another instance of MCObjectStreamer's weird "holding
ownership via someone else's reference" trick.

llvm-svn: 315410

"Commands" was ambiguous because in the linker script, everything is
a command. We used to handle only SECTIONS commands, and at the time,
it might make sense to call them the commands, but it is no longer
the case. We handle not only SECTIONS but also MEMORY, PHDRS, VERSION,
etc., and they are all commands.

llvm-svn: 315409

We want to check whether the using (shadow) declaration itself is visible, not
whether its target is visible.

llvm-svn: 315408

[libFuzzer] experimental flag to tweak the corpus distribution. Seems to improve the situation dramatically on the png benchmark and make things worse on a number of micro-puzzles. Needs more A/B testing 

llvm-svn: 315407

Of course, casting an unsigned value too large for 'int' is UB. So,
write out the ternary. LLVM folds it to ADD anyway.

Fixes the warning from r303693 a different way.

Thanks to Erich Keane for pointing this out!

llvm-svn: 315406

HasSections is true if there is at least one SECTIONS linker
script command, and it is not directly related to whether we have
section objects or not. So I think the new name is better.

llvm-svn: 315405

llvm-svn: 315404

ScriptConfiguration was a class to contain parsed results of
linker scripts. LinkerScript is a class to interpret it.

That ditinction was needed because we haven't instantiated
LinkerScript early (because, IIRC, LinkerScript class was a
ELFT template function). So, when we parse linker scripts,
we couldn't directly store the result to a LinkerScript instance.

Now, that limitation is gone. We instantiate LinkerScript
at the very beginning of our main function. We can directly
store parse results to a LinkerScript instance.

llvm-svn: 315403

llvm-svn: 315402

Because addRegular's functionality is tightly coupled with
addSymbol, and the former is called only once, it makes sense
to merge the two functions. This patch also adds comments.

llvm-svn: 315401

Fixes PR34306.

This is because it usually results in more compact code, and because
there are also known code generation bugs when using the PIC model
(see bug).

Based on a patch by Carlo Kok.

Differential Revision: https://reviews.llvm.org/D38769

llvm-svn: 315400

[X86] Remove temporary std::string creation from shuffle comment printing. We can just write directly to the raw_ostream.

llvm-svn: 315399

Credit to OSS-Fuzz for discovery:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3137#c5

rdar://34923985

llvm-svn: 315398

llvm-svn: 315397

The tests have been enabled by accident in r315389.

llvm-svn: 315396

llvm-svn: 315395

I think three ctors are too many for this simple class.

llvm-svn: 315394