Commit Graph

165 Commits

Author SHA1 Message Date
Rafael Espindola 8aeb13fec1 Add a helper function for getting the first object file.
Also preparation for shared objects. It will become the first ELF file.

llvm-svn: 246796
2015-09-03 19:13:13 +00:00
Rafael Espindola 222edc66d6 Make ObjectFiles private. NFC.
Just preparation for adding support for shared libraries.

llvm-svn: 246793
2015-09-03 18:56:20 +00:00
Rafael Espindola ee1364f7f6 Don't leave unused strings in the string table.
llvm-svn: 246593
2015-09-01 21:47:21 +00:00
Rafael Espindola 5b3942f54a Don't include hidden or internal symbols in the symbol table.
llvm-svn: 246583
2015-09-01 20:36:51 +00:00
Rafael Espindola f7d45f0869 Delete SyntheticUndefined.
Now that resolved is templated anyway, we can use the regular Undefined.

llvm-svn: 246407
2015-08-31 01:46:20 +00:00
Rafael Espindola daa92a6193 Keep the largest common symbol.
This requires templating some functions over ELFT, but that opens other cleanup
opportunities for future patches.

llvm-svn: 246405
2015-08-31 01:16:19 +00:00
Rafael Espindola 4c3aa0f228 Delete unused forward declarations.
llvm-svn: 245055
2015-08-14 14:51:11 +00:00
Rafael Espindola beee25e484 Make these headers as being c++.
llvm-svn: 245050
2015-08-14 14:12:54 +00:00
Rafael Espindola 62b81b875a Start populating the symbol table.
With this patch only the name is set. I will set the other fields shortly.

For now the table doesn't include local symbols. This is equivalent to using
--discard-all with gnu ld. This is OK for now since the symbols are not
needed for execution and for testing symbol resolution we only need the
global symbols.

llvm-svn: 245044
2015-08-14 13:07:05 +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
Rafael Espindola b89951457d Remove SymbolTable::getChunks.
When we were using a std::sort over all the chunks we needed to put them in a
single storage.

Now that we just iterate over them and use a map to find the output section,
we can avoid allocating the temporary storage.

llvm-svn: 243980
2015-08-04 13:39:30 +00:00
Rui Ueyama b4731a5847 ELF2: Use DenseMap instead of std::map for a symbol table.
We use DenseMap for COFF too.

llvm-svn: 243534
2015-07-29 16:30:40 +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