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983 Commits

Author SHA1 Message Date
Rui Ueyama
d7c417c03e ELF2: Assign bool values directly. NFC. 
llvm-svn: 248837
 2015-09-29 22:33:18 +00:00
Rui Ueyama
4eed0114c5 ELF2: Use 'a.out' as default output file name. 
llvm-svn: 248831
 2015-09-29 21:49:40 +00:00
Rui Ueyama
9d4c6d771b [ELF2] Implemented --entry flag. 
Patch from George Rimar!

llvm-svn: 248806
 2015-09-29 16:40:13 +00:00
Rafael Espindola
4b2ca85c1a Implement --allow-multiple-definition. 
Patch by George Rimar!

llvm-svn: 248733
 2015-09-28 20:30:11 +00:00
Igor Kudrin
1309fc0378 [ELF2] Add --sysroot command line switch 
Reviewers: rafael, ruiu

Subscribers: llvm-commits

Projects: #lld

Differential Revision: http://reviews.llvm.org/D13209

llvm-svn: 248715
 2015-09-28 15:01:59 +00:00
Rafael Espindola
abb7b28686 Add support for -L and -l command line switches. 
Patch by Igor Kudrin!

llvm-svn: 248708
 2015-09-28 12:52:21 +00:00
Rafael Espindola
551dfd8818 Implement --noinhibit-exec. 
Patch by George Rimar!

llvm-svn: 248605
 2015-09-25 19:24:57 +00:00
Davide Italiano
d75d3b94fd [ELF2] Add support for -discard-none. 
Differential Revision:	http://reviews.llvm.org/D13083

llvm-svn: 248499
 2015-09-24 15:08:23 +00:00
Rafael Espindola
05a3dd2cba Implement --export-dynamic. 
llvm-svn: 248347
 2015-09-22 23:38:23 +00:00
Davide Italiano
5445b2de50 [ELF2] Implement support for -discard-locals. 
This is not on by default, but it may make sense to change it in future.

llvm-svn: 248133
 2015-09-20 21:58:12 +00:00
Davide Italiano
6d328d3841 [ELF2] Initial support for local symbols. 
Symbol table is now populated correctly, but some fields are missing,
they'll be added in the future. This patch also adds --discard-all
flag, which was the default behavior until now.

Differential Revision:   http://reviews.llvm.org/D12874

llvm-svn: 247849
 2015-09-16 20:45:57 +00:00
Rafael Espindola
4340aad144 Start adding support for creating shared libraries. 
They are not fully functional yet, but this implements enough support for lld
itself to read them.

With that, delete the .so binary we were using for tests and start eating our
own dog food.

llvm-svn: 247487
 2015-09-11 22:42:45 +00:00
Rafael Espindola
2e9eac13c7 Implement -rpath. 
llvm-svn: 247475
 2015-09-11 21:18:56 +00:00
Rafael Espindola
7010776db7 Implement the -dynamic-linker option. 
With this dynamic executables can be executed with just ./t instead of
/lib64/ld-2.20.so ./t

llvm-svn: 247446
 2015-09-11 18:49:42 +00:00
Rafael Espindola
4f624b9581 Simplify reporting of undefined symbols. 
llvm-svn: 247016
 2015-09-08 14:32:29 +00:00
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
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
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
Rui Ueyama
570752c7ac Do not use unique pointers. NFC. 
These unique pointers have the exact same lifetime as automatic
variables, so use automatic variables instead.

llvm-svn: 245281
 2015-08-18 09:13:25 +00:00
Rui Ueyama
880632c458 ELF2: Remove unused global variable. 
A global variable "Driver" is to re-entry to the driver to parse a
.drectve section. Because the need is COFF-specific, we don't need
this variable for ELF.

llvm-svn: 244680
 2015-08-11 21:45:55 +00:00
Rafael Espindola
192e1fa59d Move the error handling functions to Error.h. NFC. 
llvm-svn: 244216
 2015-08-06 15:08:23 +00:00
Rui Ueyama
cb8474edae COFF, ELF2: Pass output file path implicitly using Config global variable. 
Various parameters are passed implicitly using Config global variable
already. Output file path is no different from others, so there was no
special reason to handle that differnetly.

This patch changes the signature of writeResult(SymbolTable *, StringRef)
to writeResult(SymbolTable *).

llvm-svn: 244180
 2015-08-05 23:51:50 +00:00
Rui Ueyama
afff74e228 ELF2: Simplify Writer interface. 
We are using Writer more like a function instead of a class.
This patch makes it a function to simplify the interface.
All details of Writer class is now hidden from other parts of the linker.

llvm-svn: 244169
 2015-08-05 23:24:46 +00:00
Rafael Espindola
4b7c2fc64e Add bare minimum to get a working i386 linux program. 
llvm-svn: 244050
 2015-08-05 15:08:40 +00:00
Rafael Espindola
aefd5c1617 Create ObjectFile with the correct endian and word size. 
The writer is still hard coded to 64 bits le, but with this we can test for
invalid ELF files.

llvm-svn: 243993
 2015-08-04 15:45:54 +00:00
Rafael Espindola
e0a5c09a5c Use make_unique. NFC. 
llvm-svn: 243988
 2015-08-04 15:06:36 +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
64661cdb4c Remove commented out code. 
llvm-svn: 242092
 2015-07-14 00:11:38 +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