Because it corresponds to SORT_NONE. None was renamed Default.

llvm-svn: 281776

This matches bfd behavior. It also makes future changes simpler as we
don't have to worry about ignoring these commands in multiple places

llvm-svn: 281775

We have to look at all the relevant input sections at once.

llvm-svn: 281772

This fixes Bug 30385 - SORT_NONE not implemented,

`SORT_NONE' disables section sorting by ignoring the command line
section sorting option.

That is why this patch also implements --sort-section option.

Description of sorting rules
available at https://sourceware.org/binutils/docs/ld/Input-Section-Wildcards.html 

Differential revision: https://reviews.llvm.org/D24604

llvm-svn: 281771

Recommit r281721 "[ELF] - Linkerscript: implement EXCLUDE_FILE in the middle of a input section description."

With fix for 2 bots. Details about the fix performed is on a review page.

Initial commit message:
This is PR30387:

From PR description:
We fail to parse

SECTIONS
{
  foo :
  {
    *(sec0 EXCLUDE_FILE (zed1.o) sec1  EXCLUDE_FILE (zed2.o) sec2 )
  }
}
The semantics according to bfd are:

Include sec1 from every file but zed1.o
Include sec2 from every file but zed2.o
Include sec0 from every file

Patch implements the support.

Differential revision: https://reviews.llvm.org/D24650

llvm-svn: 281754

Differential revision: https://reviews.llvm.org/D24450

llvm-svn: 281740

This fixes pr30367, but more importantly, it changes how we compute offsets.

Now offset computation in a walk over linker script commands, like the
rest of assignAddresses. IMHO this is simpler to understand and if we
ever have to create multiple outputsections or chunks to change how we
handle test/ELF/linkerscript/alternate-sections.s it should be easier
to do it.

llvm-svn: 281736

Reverted r281721 ("[ELF] - Linkerscript: implement EXCLUDE_FILE in the middle of a input section description.").

It broke build bot:
http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/27508

llvm-svn: 281723

This is PR30387:

From PR description:
We fail to parse

SECTIONS
{
  foo :
  {
    *(sec0 EXCLUDE_FILE (zed1.o) sec1  EXCLUDE_FILE (zed2.o) sec2 )
  }
}
The semantics according to bfd are:

Include sec1 from every file but zed1.o
Include sec2 from every file but zed2.o
Include sec0 from every file

Patch implements the support.

Differential revision: https://reviews.llvm.org/D24650

llvm-svn: 281721

llvm-svn: 281698

llvm-svn: 281671

What bfd and gold do is give up in putting the headers in the PT_LOAD
and just start the PT_LOAD in the second page.

llvm-svn: 281660

We were some times stopping early when using linker scripts.

llvm-svn: 281647

This is PR30386,

SORT_BY_INIT_PRIORITY is a keyword can be used to sort sections by numerical value of the
GCC init_priority attribute encoded in the section name.

Differential revision: https://reviews.llvm.org/D24611

llvm-svn: 281646

llvm-svn: 281608

Previouly bot was failing:
http://lab.llvm.org:8011/builders/clang-with-lto-ubuntu/builds/413/steps/test-stage1-compiler/logs/stdio
Fixed possible segfault, so commit should bix the buildbot.

Initial commit message:

This is PR30312. Info from bug page:

Both of these symbols demangle to abc::abc():
_ZN3abcC1Ev
_ZN3abcC2Ev
(These would be abc's complete object constructor and base object constructor, respectively.)
however with "abc::abc()" in the version script only one of the two receives the symbol version.

Patch fixes that.
It uses testcase created by Ed Maste (D24306).

Differential revision: https://reviews.llvm.org/D24336

llvm-svn: 281605

llvm-svn: 281521

When the linker generates a relocatable object there is no TLS program
header and we should not adjust TLS symbols value.

llvm-svn: 281494

This just makes a followup patch easier to read.

llvm-svn: 281482

--section-start=sectionname=org
Locate a section in the output file at the absolute address given by org. 
You may use this option as many times as necessary to locate multiple sections in the command line.
 org must be a single hexadecimal integer; for compatibility with other linkers, 
you may omit the leading `0x' usually associated with hexadecimal values. 
Note: there should be no white space between sectionname, the equals sign (“<=>”), and org.

-Tbss=org
-Tdata=org
-Ttext=org
Same as --section-start, with .bss, .data or .text as the sectionname.

Differential revision: https://reviews.llvm.org/D24294

llvm-svn: 281458

It is substantially faster by processing 8 bytes at a time.

llvm-svn: 281454

llvm-svn: 281449

r279456 guarantees that this condition is always satisfied.

llvm-svn: 281426

Previously, all input files were owned by the symbol table.
Files were created at various places, such as the Driver, the lazy
symbols, or the bitcode compiler, and the ownership of new files
was transferred to the symbol table using std::unique_ptr.
All input files were then free'd when the symbol table is freed
which is on program exit.

I think we don't have to transfer ownership just to free all
instance at once on exit.

In this patch, all instances are automatically collected to a
vector and freed on exit. In this way, we no longer have to
use std::unique_ptr.

Differential Revision: https://reviews.llvm.org/D24493

llvm-svn: 281425

Something broked BBots:
281318 failed on step 9:
http://lab.llvm.org:8011/builders/clang-with-lto-ubuntu/builds/413

r281317 built step 9 green:
http://lab.llvm.org:8011/builders/clang-with-lto-ubuntu/builds/415

Initial revision commits were:
This is PR30312. Info from bug page:

Both of these symbols demangle to abc::abc():
_ZN3abcC1Ev
_ZN3abcC2Ev
(These would be abc's complete object constructor and base object constructor, respectively.)
however with "abc::abc()" in the version script only one of the two receives the symbol version.

Patch fixes that.
It uses testcase created by Ed Maste (D24306).

Differential revision: https://reviews.llvm.org/D24336

llvm-svn: 281411

Without this flag set, an AArch64 Linux kernel won't try to load the executable
(even if a 32 bit arm kernel will run the binary just fine).

Patch by Martin Storsjö!

Differential revision: https://reviews.llvm.org/D24471

llvm-svn: 281394

llvm-svn: 281393

llvm-svn: 281388

llvm-svn: 281381

llvm-svn: 281380

This also fixes the related problem of non SHF_MERGE sections with
different flags not being merged.

Fixes pr30355.

llvm-svn: 281338

llvm-svn: 281329

llvm-svn: 281325

We already handle this is createSections.

llvm-svn: 281320

This is PR30312. Info from bug page:

Both of these symbols demangle to abc::abc():
_ZN3abcC1Ev
_ZN3abcC2Ev
(These would be abc's complete object constructor and base object constructor, respectively.)
however with "abc::abc()" in the version script only one of the two receives the symbol version.

Patch fixes that.
It uses testcase created by Ed Maste (D24306).

Differential revision: https://reviews.llvm.org/D24336

llvm-svn: 281318

llvm-svn: 281265

llvm-svn: 281222

llvm-svn: 281210

This reverts commit r281096.

The previous link errors should be fixed by r281208.

llvm-svn: 281209

Differential revision: https://reviews.llvm.org/D24403

llvm-svn: 281202