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15 Commits

Author SHA1 Message Date
Michael J. Spencer 1b348a68e5 [elf2] Add basic archive file support. 
llvm-svn: 246886
 2015-09-04 22:28:10 +00:00
Rafael Espindola f98d6d84cd Start adding support for shared libraries. 
This just adds the types and enough support to detect incompatibilities among
shared libraries and object files.

llvm-svn: 246797
 2015-09-03 20:03:54 +00:00
Rafael Espindola 8788e1a630 Make getSymbols non-virtual. NFC. 
llvm-svn: 246731
 2015-09-02 23:01:37 +00:00
Rafael Espindola 905ad3442d Split out the ELF kind from the InputFile Kind. 
There were at least two issues with having them together:
* For compatibility checks, we only want to look at the ELF kind.
* Adding support for shared libraries should introduce one InputFile kind,
  not 4.

llvm-svn: 246707
 2015-09-02 20:43:43 +00:00
Rafael Espindola f2f41a9f97 Fix the gcc build: 
InputFiles.h:98:53: error: invalid use of incomplete type ‘class lld::elf2::SymbolBody’
     return SymbolBodies[SymbolIndex - FirstNonLocal]->getReplacement();

llvm-svn: 246262
 2015-08-28 02:40:04 +00:00
Michael J. Spencer 67bc8d6b3f [elf2] Add basic relocation support for x86-64. 
This currently doesn't handle local symbols.

Differential Revision: http://reviews.llvm.org/D11612

llvm-svn: 246234
 2015-08-27 23:15:56 +00:00
Rafael Espindola 2034822981 Add support for reading files with more than 0xff00 sections. 
llvm-svn: 245880
 2015-08-24 21:43:25 +00:00
Rafael Espindola beee25e484 Make these headers as being c++. 
llvm-svn: 245050
 2015-08-14 14:12:54 +00:00
Rafael Espindola d8340dae0c Don't depend on getDotSymtabSec. It is going away. 
llvm-svn: 244451
 2015-08-10 15:12:17 +00:00
Rafael Espindola e7a00e326a For now we only have on Chunk type. Simplify. 
The others we have in sight are
* common symbols.
* entries in SHF_MERGE sections.

They will have a substantially different treatment. It is not clear if it is
worth it putting them all in a single list just to dispatch based on the kind on
the other side.

I hope to implement common symbols soon, and then we will be in a position
to have a concrete discussion. For now this is simpler for the the implemented
features.

llvm-svn: 244042
 2015-08-05 13:55:34 +00:00
Rafael Espindola 3c9cb4b3d3 lld elf2: Diagnose trying to mix incompatible files. 
This is also a step in instantiating the writer with the correct template
argument.

llvm-svn: 244035
 2015-08-05 12:03:34 +00:00
Rafael Espindola 2ffdd4d0e5 The SymbolTable doesn't need to be a template. 
It was already using just code that is common to all object files.

llvm-svn: 243985
 2015-08-04 14:29:01 +00:00
Michael J. Spencer 84487f1174 [ELF2] Add a new ELF linker based on the new PE/COFF linker. 
Differential Revision: http://reviews.llvm.org/D11188

llvm-svn: 243161
 2015-07-24 21:03:07 +00:00
Michael J. Spencer bae540e945 Revert ELF port. Posting to mailing list. 
llvm-svn: 242118
 2015-07-14 04:49:48 +00:00
Michael J. Spencer 8a4145411f Initial ELF port. 
This is a direct port of the new PE/COFF linker to ELF.

It can take a single object file and generate a valid executable that executes at the first byte in the text section.

llvm-svn: 242088
 2015-07-13 23:48:06 +00:00