llvm-svn: 286242

Thanks to Malcolm Parsons who pointed on that.

llvm-svn: 286239

We can just use a regular InputSection.

llvm-svn: 286237

This reverts commit r286100.

This saves 8 bytes of every InputSection.

llvm-svn: 286235

With the current infrastructure it can be just an ordinary
InputSection like the real .bss sections.

llvm-svn: 286234

llvm-svn: 286226

Differential revision: https://reviews.llvm.org/D25325

llvm-svn: 286225

llvm-svn: 286220

llvm-svn: 286194

llvm-svn: 286193

llvm-svn: 286158

Differential revision: https://reviews.llvm.org/D26281

llvm-svn: 286100

This fixes casting warning and removes the need of that cast at all.

llvm-svn: 286065

llvm-svn: 286064

Patch switches computing of --build-id hash to tree.

This is the way when input data is splitted by chunks,
hash is computed for each one in threaded/non-threaded way.
At the end hash is conputed for result tree.

With or without -threads the result hash is the same.

Differential revision: https://reviews.llvm.org/D26199

llvm-svn: 286061

llvm-svn: 286054

A CommonInputSection is a section containing all common symbols.
That was an input section but was abstracted in a different way
than the synthetic input sections because it was written before
the synthetic input section was invented.

This patch rewrites CommonInputSection as a synthetic input section
so that it behaves better with other sections.

llvm-svn: 286053

In short the patch introduces support for linking object file conform
MIPS N32 ABI [1]. This ABI is similar to N64 ABI but uses 32-bit
pointer size.

The most non-trivial requirement of this ABI is one more relocation
packing format. N64 ABI puts multiple relocation type into the single
relocation record. The N32 ABI uses series of successive relocations
with the same offset for this purpose. In this patch, new function
`mergeMipsN32RelTypes` handle this case and "convert" N32 relocation to
the N64 relocation so the rest of the code keep unchanged.

For now, linker does not support series of relocations applied to sections
without SHF_ALLOC bit. Probably later I will add the support or insert
some sort of assert into the `relocateNonAlloc` routine to catch this
case.

[1] ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/MIPS-N32-ABI-Handbook.pdf

Differential revision: https://reviews.llvm.org/D26298

llvm-svn: 286052

Previously, we do this piece of code to iterate over all input sections.

  for (elf::ObjectFile<ELFT> *F : Symtab.getObjectFiles())
    for (InputSectionBase<ELFT> *S : F->getSections())

It turned out that this mechanisms doesn't work well with synthetic
input sections because synthetic input sections don't belong to any
input file.

This patch defines a vector that contains all input sections including
synthetic ones.

llvm-svn: 286051

Differential revision: https://reviews.llvm.org/D26320

llvm-svn: 286030

llvm-svn: 286028

This change fixes a bug that was introduced by r285851.
r285851 converted .interp section as an output section to an input
section. But I forgot to make it a "Live" section, so if -gc-section
is given, it was garbage collected.

llvm-svn: 286025

It turned ou that we actually want to call std::for_each even if
threading is supported. Unless --thread is given, LLD shouldn't use
more than one threads.

llvm-svn: 286004

llvm-svn: 286001

Differential revision: https://reviews.llvm.org/D26293

llvm-svn: 286000

llvm-svn: 285996

If multi-threading is disabled, parallel_for_each will automatically
fall back to std::for_each, so we don't have to do that ourselves.

llvm-svn: 285968

llvm-svn: 285966

This avoids duplicating the buffer in InputFile.

llvm-svn: 285965

llvm-svn: 285962

llvm-svn: 285956

llvm-svn: 285952

Previously, it didn't support the character class, so we couldn't
eliminate the use fo llvm::Regex. Now that it is supported, we
can remove compileGlobPattern, which converts a glob pattern to
a regex.

This patch contains optimization for exact/prefix/suffix matches.

Differential Revision: https://reviews.llvm.org/D26284

llvm-svn: 285949

Instead of remembering a raw Elf_Shdr, store the symbol table proper
and the index of the first non local.

This moves error handling upfront and simplifies it.

llvm-svn: 285933

llvm-svn: 285926

llvm-svn: 285922

llvm-svn: 285918

llvm-svn: 285913

llvm-svn: 285911

llvm-svn: 285906