llvm-svn: 280305

Target->RelativeRel is used for all platforms, but AMDGPU did
not send that member.

Fixes bug 30227 - RelativeRel is used, but not initialized for AMDGPU.

Differential Revision: https://reviews.llvm.org/D24100

llvm-svn: 280291

Summary:
VERSION commands define symbol versions. The grammar of the
commnad is as follows

  VERSION { version-script-commands }

where version-script-commands is

  [ name ] { version-definitions }.

Note that we already support version-script-commands because
it is being used for version script command.

This patch is based on George's patch https://reviews.llvm.org/D23609

Reviewers: grimar

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D24089

llvm-svn: 280284

Symbol assignments outside of SECTIONS command need to be created
even when SECTIONS command is not used.

Differential Revision: https://reviews.llvm.org/D23751

llvm-svn: 280252

llvm-svn: 280243

Before this lld was always creating common symbols itself. It worked,
but prevented them from being internalized when possible.

Now it preserves common symbols is the bitcode and they are internalized.

Fixes pr30184.

llvm-svn: 280242

llvm-svn: 280237

Given that we almost always want to handle it as DefinedRegular, just
use DefinedRegular.

llvm-svn: 280226

llvm-svn: 280225

llvm-svn: 280224

llvm-svn: 280223

llvm-svn: 280222

Patch removes VersionScriptParser class and moves the members to ScriptParser
It opens road for implementation of VERSION linkerscript command.

Differential revision: https://reviews.llvm.org/D23774

llvm-svn: 280212

As stated in PR28843:

we should handle command lines with

-target1-rel -target1-abs
--demangle --no-demangle
Patch implements this for specified options.
There are probably other conflicting options can exist,
so fix is called "partial".

Differential revision: https://reviews.llvm.org/D23867

llvm-svn: 280211

This patch groups relative relocations in a single block
in combrelocs mode and adds DT_RELCOUNT or DT_RELACOUNT
tag to .dynamic section

Differential revision: https://reviews.llvm.org/D23661

llvm-svn: 280210

DiscardPolicy is enum replacing several boolean options. 
This approach is not only consistent with what we use for 
unresolveds (UnresolvedPolicy), but also should help to solve a problem 
of options with opposing meanings, mentioned in PR28843

Differential revision: https://reviews.llvm.org/D23868

llvm-svn: 280209

This approach is not only consistent with UnresolvedPolicy, 
but also should help to solve a problem 
of options with opposing meanings, mentioned in PR28843

Differential revision: https://reviews.llvm.org/D23869

llvm-svn: 280206

Allows adding start and/or end symbols to special output sections,
like .eh_frame_hdr, which aren't lists of regular input sections. 

Differential revision: https://reviews.llvm.org/D23716

llvm-svn: 280205

Differential revision: https://reviews.llvm.org/D24041

llvm-svn: 280203

We were computing the binding on both the caller and callee.

llvm-svn: 280156

Differential Revision:  https://reviews.llvm.org/D24037

llvm-svn: 280144

ADDR(section)
Return the absolute address (the VMA) of the named section.

Used in the wild, eg.: https://searchcode.com/file/53617342/arch/x86/kernel/vmlinux.lds.S

Differential revision: https://reviews.llvm.org/D23913

llvm-svn: 280070

FreeBSD/mips script has non-wildcard filename specifications:
.text :
{
 start.o(.text*)

Patch adds support for that, this is PR29115.

Differential revision: https://reviews.llvm.org/D23839

llvm-svn: 280069

This addresses forgotten review comment for r280067:
"[ELF] - Versionscript: support wildcards for extern "c++" tag."

llvm-svn: 280068

Previously for extern keyword only names in quotes (exact match) was supported.
Patch adds support for wildcards, so next scripts can be handled properly:

LIBSAMPLE_1.0 {
   global:            
     extern "C++" {  
       foo*;   
   };                  
 };

Differential revision: https://reviews.llvm.org/D23794

llvm-svn: 280067

llvm-svn: 280066

GNU gold handles output section fillers as 32-bit values.
This patch makes LLD compatible with that behavior.

Differential revision: https://reviews.llvm.org/D23181

llvm-svn: 280018

Differential revision: https://reviews.llvm.org/D23349

llvm-svn: 279810

llvm-svn: 279729

-oformat output-format
`-oformat' option can be used to specify the binary format for the output object file.

Patch implements binary format output type.

Differential revision: https://reviews.llvm.org/D23769

llvm-svn: 279726

llvm-svn: 279638

    
The ARM Exception handling ABI requires that all ARM exception index
table sections have a prefix of .ARM.exidx and are combined into a
single contiguous block either in their own output section or as part
of another output section.
    
In general clang will output a single .ARM.exidx section per object,
but will use .ARM.exidx.<section name> when -ffunction-sections is used.
    
This change canonicalizes the names of sections with the .ARM.exidx
prefix to just .ARM.exidx, which ensures that there is only a single
output section.

Differential Revision: https://reviews.llvm.org/D23775

llvm-svn: 279617

llvm-svn: 279480

Not only symbols (like sections) have names, in case where we
fail to create relocation against such symbol, we should not
print out an empty string, instead we should print a generic
message.

Differential Revision: https://reviews.llvm.org/D23731

llvm-svn: 279459

When performing ICF, we have to respect the alignment requirement
of each section within each group.

Differential Revision: https://reviews.llvm.org/D23732

llvm-svn: 279456

This symbol can be used by the program to examine its own headers.

Differential Revision: https://reviews.llvm.org/D23750

llvm-svn: 279452

llvm-svn: 279415

Summary:
We previously added these output sections to segments just by type.
Therefore, if there's a PHDRS command like this

  PHDRS {
    headers PT_PHDR PHDRS;
    interp PT_INTERP;
  }

  SECTIONS {
    . = SIZEOF_HEADERS;
    .interp : { *(.interp) } :text
  }

then .interp was added to "interp" segment even though the linker
is not instructed to do so by SECTIONS command. This patch removes
the default behavior to simplify.

Differential Revision: https://reviews.llvm.org/D23702

llvm-svn: 279414

TLS on i386 in non-PIE/PIC code seems broken right now, because we don't
properly add the addend encoded in the instruction to the resulting
offset when processing R_386_TLS_LE relocations.

Extend one of the existing tests for TLS on i686 to use an addend.

PR:		https://llvm.org/bugs/show_bug.cgi?id=29068
Reviewed by:	ruiu
Differential Revision:	https://reviews.llvm.org/D23741

llvm-svn: 279368

This is fix for PR28976.

Problem was that in scanRelocs, we computed relocation offset too early 
for case when linkerscript was used. Patch fixes the issue 
delaying the calculation.

Differential revision: https://reviews.llvm.org/D23655

llvm-svn: 279264