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329 Commits

Author SHA1 Message Date
Michael J. Spencer 52fdb8bf13 Fix (possible) MSVC miscompile in debug mode. 
llvm-svn: 176748
 2013-03-09 01:41:27 +00:00
Michael J. Spencer 2d224509af [Writer][ELF] Use correct data types for sizes. Fixes integer overflow bug. 
This only happens when the section header count is > 1024.

llvm-svn: 176747
 2013-03-09 01:41:16 +00:00
Shankar Easwaran b327810215 [ELF] Create baseclass for all ELF writers 
llvm-svn: 176724
 2013-03-08 21:42:51 +00:00
Shankar Easwaran c44bc347cb [ELF] Order weak symbols properly 
llvm-svn: 176583
 2013-03-06 21:59:27 +00:00
Dmitri Gribenko e16bc92063 Fix -Wdocumentation warning: use a correct Doxygen comment marker 
llvm-svn: 176494
 2013-03-05 18:11:01 +00:00
Shankar Easwaran 49ae019997 [ELF] Set symbol type to STT_SECTION, so that objdump.bfd doesnot get confused when disassembling output 
llvm-svn: 176489
 2013-03-05 16:09:32 +00:00
Shankar Easwaran 3ff62ade38 [ELF] add dynamic library support 
llvm-svn: 176483
 2013-03-05 14:52:48 +00:00
Shankar Easwaran bcb722a452 [ELF] Remove comment 
llvm-svn: 176482
 2013-03-05 14:45:59 +00:00
Shankar Easwaran 7b0ae11c82 [ELF] no functionality change, update dynamicTable functionality 
llvm-svn: 176430
 2013-03-04 02:21:16 +00:00
Shankar Easwaran 03a525d6fd [lld][ELF] Add modified writer 
llvm-svn: 176425
 2013-03-03 22:10:57 +00:00
Shankar Easwaran 1993b0000c [lld][ELF] rename to add new support in the ELF Writer 
llvm-svn: 176424
 2013-03-03 22:09:22 +00:00
Shankar Easwaran 62bba5ddfb [ELF] rename Writer to ExecutableWriter 
llvm-svn: 176416
 2013-03-03 07:37:17 +00:00
Shankar Easwaran 1729e12358 [ELF][Hexagon] add initial changes to add GOT/PLT 
llvm-svn: 176415
 2013-03-03 07:34:56 +00:00
Shankar Easwaran b0e356e223 move dynamic linking atoms to Atoms.h 
llvm-svn: 176370
 2013-03-01 19:33:42 +00:00
Michael J. Spencer 8c0526593a [Writer][ELF][x86-64] Handle GOTPCREL relocations to SharedLibraryAtoms. 
llvm-svn: 176324
 2013-03-01 01:09:46 +00:00
Michael J. Spencer 3e00c5015f [ELF][x86-64] Only emit a PLT entry for a PLT relocation if the target atom is a SharedLibraryAtom. 
This seems to be what ld does, but I'm not sure how it works with symbol interposition.

With this hello-world with glibc dynamically linked works.

llvm-svn: 176310
 2013-03-01 00:03:56 +00:00
Michael J. Spencer a55e37f477 Add basic linker script parsing. 
llvm-svn: 176309
 2013-03-01 00:03:36 +00:00
Shankar Easwaran da28895597 [ELF][Hexagon] add quickdata relocations 
llvm-svn: 176298
 2013-02-28 20:54:03 +00:00
Michael J. Spencer a26f71c9ed [ELF][x86-64] Separate static and dynamic GOT/PLT generation. 
llvm-svn: 176294
 2013-02-28 20:04:32 +00:00
Shankar Easwaran 937aa19a4b [ELF] Set header flags to 0 by default 
llvm-svn: 176279
 2013-02-28 18:36:34 +00:00
Shankar Easwaran dac3873442 [ELF][Hexagon] change Header flags 
llvm-svn: 176278
 2013-02-28 18:35:27 +00:00
Shankar Easwaran 8a2d1990d8 [lld][ELF][Hexagon] add more relocations 
llvm-svn: 176277
 2013-02-28 18:29:23 +00:00
Shankar Easwaran d4ac74ffcc [lld][ELF] Order segments 
llvm-svn: 176207
 2013-02-27 20:24:47 +00:00
Shankar Easwaran c5eda3ad2b fixing build error properly according to comment from David 
llvm-svn: 176169
 2013-02-27 05:53:38 +00:00
Shankar Easwaran 4f4ed0acdf adding a return to fix compilation error from buildbot, build #75 
llvm-svn: 176167
 2013-02-27 05:33:27 +00:00
Shankar Easwaran 2ce6b43f40 fixing typo in header file 
llvm-svn: 176162
 2013-02-27 04:02:30 +00:00
Michael J. Spencer 2063679ec4 [ELF][Writer] Add dynamic relocation tables. 
This adds separate PLT and dynamic relocation tables. It also fills in the dynamic table
entries for them.

llvm-svn: 176150
 2013-02-27 01:30:27 +00:00
Michael J. Spencer 7f09a3d54e [Pass][Layout] Fix bug and add debug printing. 
Fix a bug where if two atoms had the same index in the override map,
the compare would return false. It now goes to the next check when
they are equal.

No test because it currently can't be tested. An upcomming patch will test it.

llvm-svn: 176073
 2013-02-26 01:35:30 +00:00
Michael J. Spencer f10c0a3aa0 [ELF][Writer] Fill in dynamic table entries. 
llvm-svn: 176045
 2013-02-25 20:03:09 +00:00
Shankar Easwaran 596b40871a [ELF][Hexagon] add _SDA_BASE_(absolute symbol pointing to start of quickdata) 
llvm-svn: 175997
 2013-02-24 16:02:24 +00:00
Shankar Easwaran 1b095842ec [ELF] Change functions to virtual, in ExecutableAtoms 
llvm-svn: 175993
 2013-02-24 15:11:55 +00:00
Shankar Easwaran 5f0afe84f5 [ELF]Change name of runtime files, so that targets can change runtime files that they own 
llvm-svn: 175992
 2013-02-24 14:54:02 +00:00
Shankar Easwaran db74ffbe72 [ELF][Hexagon]add typeZeroFillFast 
llvm-svn: 175983
 2013-02-24 03:09:10 +00:00
Michael J. Spencer 3407211b2f [ELF][Writer] Add hash table. 
llvm-svn: 175972
 2013-02-23 19:46:18 +00:00
Michael J. Spencer 13db19d64e [ELF][Writer] Add a PHDR program table entry for dynamic files. 
llvm-svn: 175951
 2013-02-23 03:58:06 +00:00
Michael J. Spencer 942dbcc209 [ELF][Writer] Add dynamic string and symbol table. 
llvm-svn: 175941
 2013-02-23 01:02:31 +00:00
Shankar Easwaran 8c55c01d2a sort quickdata for the hexagon target 
llvm-svn: 175904
 2013-02-22 18:01:08 +00:00
Shankar Easwaran 873c9ffba0 add changes for typeDataFast 
llvm-svn: 175901
 2013-02-22 17:18:53 +00:00
Michael J. Spencer e4c0e3712f [ELF][Writer] Add .interp section. 
llvm-svn: 175657
 2013-02-20 20:13:47 +00:00
Michael J. Spencer b71ce655a8 [ELF][Writer] Add dynamic table. 
llvm-svn: 175654
 2013-02-20 19:46:12 +00:00
Shankar Easwaran 8a1a4e7cf7 rename fixupAddend to relocAddend 
llvm-svn: 175638
 2013-02-20 17:42:00 +00:00
Shankar Easwaran 25832ede03 functionality to handle global atoms in Merge sections 
llvm-svn: 175636
 2013-02-20 17:38:37 +00:00
Michael J. Spencer 2139795dfa [Driver][GNULD] Lookup .so files and default to dynamic output. 
llvm-svn: 175572
 2013-02-19 23:05:36 +00:00
Michael J. Spencer cadb082e5a [ELF] Fix memory leak by deleting BumpPtr allocated objects. 
llvm-svn: 175558
 2013-02-19 21:04:30 +00:00
Chandler Carruth 21aaf2534d Switch a vector<pair<const T &, const U &>> to a vector<pair<const T *, 
const U *>>. Even in C++11 it doesn't seem this is valid as vector's
emplace support requires move assignment, and there is no way to move
assign a reference.

The real motivation however is that this fixes the build of lld with
libstdc++ 4.6.

llvm-svn: 175481
 2013-02-19 01:58:11 +00:00
Michael J. Spencer be03e2a861 [Core,Driver,ELF] Differentiate static and dynamic executables. 
This also adds a simple relocation change for dynamic executables to
x86-64 ELF.

llvm-svn: 175208
 2013-02-14 20:32:00 +00:00
Michael J. Spencer db18847b01 [ELF][Writer] Refactor Section to not have atoms. Move atoms into AtomSection. 
The purpose of this change is to simplify creating non-atom sections.
Previously _contentType, _sectionKind and _order were used for multiple
purposes and collided in places. This moves all of the Atom specific logic down
into AtomSection and makes Section just have raw Elf_Shdr flags.

llvm-svn: 175207
 2013-02-14 20:24:38 +00:00
Shankar Easwaran 4b9cea7317 fix the mergeable string atom, when the target points to a symbol which is at a relative offset from the start of the .rodata section 
llvm-svn: 175039
 2013-02-13 06:35:33 +00:00
Shankar Easwaran 96d594b14e add merge strings option, this temporarily fixes the problem bringing up helloworld with glibc on x86_64 
llvm-svn: 175038
 2013-02-13 06:12:52 +00:00
Shankar Easwaran 0da6d71b54 add support for merging common strings 
llvm-svn: 174990
 2013-02-12 18:46:53 +00:00
Michael J. Spencer c3c8bc1e5c [ELF] Add support for reading dynamic libraries. 
llvm-svn: 174916
 2013-02-11 23:03:35 +00:00
Shankar Easwaran 710b4c8fa2 fix segment ordering of elf segments 
llvm-svn: 174659
 2013-02-07 20:33:55 +00:00
Shankar Easwaran 34ab70f1e6 add changes for layoutafter/layoutbefore/ingroup/layoutpass and test cases 
llvm-svn: 174658
 2013-02-07 20:16:12 +00:00
Michael J. Spencer 7799d15f6e [Driver] Add -L and -l support. 
llvm-svn: 174590
 2013-02-07 06:47:17 +00:00
Michael J. Spencer cfe59fd0d3 [Driver] Replace Target with TargetInfo. Simplify LinkerInput. 
This removes Target and moves the functionality it had over to TargetInfo.

This also simplifies LinkerInput by removing the InputKind. This will be handled elsewhere.

llvm-svn: 174589
 2013-02-07 06:46:48 +00:00
Michael J. Spencer 7a0e212f6f [ELF][x86-64] Handle PLT32 relocations to IFUNC. 
llvm-svn: 174428
 2013-02-05 19:15:03 +00:00
Michael J. Spencer 7fec00b20e [ELF][Layout] Provide a proper way to get the TLS segment size. 
llvm-svn: 174427
 2013-02-05 19:14:43 +00:00
Michael J. Spencer 359b6ff6bb [ELF] Implement GOTPCREL for defined atoms. 
llvm-svn: 174426
 2013-02-05 19:14:28 +00:00
Michael J. Spencer e6ab9f80a7 [ELF] Replace local dynamic tls access with direct access. 
llvm-svn: 174425
 2013-02-05 19:14:07 +00:00
Michael J. Spencer be1100e192 [Resolver] Improve undefined symbol error. 
llvm-svn: 174277
 2013-02-03 10:50:06 +00:00
Michael J. Spencer 7b7e8edb86 [ELF] Use LLVM_IS_UNALIGNED_ACCESS_FAST. 
llvm-svn: 174276
 2013-02-03 10:49:57 +00:00
Michael J. Spencer 7e813242af [ELF][Reader] Improve performance by removing calls to malloc. 
llvm-svn: 174275
 2013-02-03 10:49:47 +00:00
Michael J. Spencer 9a1da075b2 [ELF] Fix uninitialized variable. 
llvm-svn: 174274
 2013-02-03 10:49:37 +00:00
Michael J. Spencer 4673da27ef [Archive] Update to LLVM change. 
llvm-svn: 174273
 2013-02-03 10:49:26 +00:00
Shankar Easwaran a47495898c remove duplicate strings from the string table 
llvm-svn: 174200
 2013-02-01 18:06:15 +00:00
Shankar Easwaran d476528e3d add alignment to .got/.got.plt/.plt sections & fix tests 
llvm-svn: 174199
 2013-02-01 18:03:32 +00:00
Shankar Easwaran f23fc86ca8 add proper copyright header 
llvm-svn: 174178
 2013-02-01 15:05:11 +00:00
Michael J. Spencer 08b49bf27e [ELF][x86-64] Fix ifunc and add test. 
In an previous commit I managed to completely disable the IRELATIVE relocation
writing code. I also used the wrong addend for the static relocation. Fix both
these issues and add a test. This test is quite brittle because there's no way
to do arithmetic on variables in FileCheck.

llvm-svn: 174161
 2013-02-01 09:14:21 +00:00
Michael J. Spencer b5d6f5e988 [ELF][x86-64] Implement static relocation model for TLS. 
This implements the static relocation model for GOT accesses to TLS.

llvm-svn: 174155
 2013-02-01 07:14:14 +00:00
Michael J. Spencer b0ed8e80d8 [ELF][x86-84] Add static TLS support. 
llvm-svn: 174154
 2013-02-01 07:13:49 +00:00
Michael J. Spencer 3c75665fdd [ELF][x86-64] Add the _GLOBAL_OFFSET_TABLE_ Atom in the correct location. 
Now we link against glibc without --noinhibit-exec.

llvm-svn: 174150
 2013-02-01 05:36:14 +00:00
Michael J. Spencer c8803d27aa [ELF] Add more absolute atoms. Simplify how they are resolved. 
llvm-svn: 174149
 2013-02-01 05:36:00 +00:00
Shankar Easwaran 73ef70b50f add hexagon scatter bits and split hexgontargethandler to hexagonrelocationhander 
llvm-svn: 174148
 2013-02-01 05:26:02 +00:00
Michael J. Spencer 280dadbbaf [Core] Only complain about undefined symbols if they are marked as canBeNullNever. 
llvm-svn: 174107
 2013-01-31 22:56:13 +00:00
Michael J. Spencer 461d33648b [ELF][x86-64] Improve unknown relocation message. 
llvm-svn: 174092
 2013-01-31 21:00:57 +00:00
Michael J. Spencer 3830d2c49f [ELF] Create atoms for progbits sections with no symbols but still have content. 
llvm-svn: 174091
 2013-01-31 21:00:42 +00:00
Shankar Easwaran fb8565a9c6 add support for assigning virtual addresses to TDATA/TBSS sections 
llvm-svn: 174065
 2013-01-31 16:04:47 +00:00
Michael J. Spencer b3c04d28c8 [ELF] Fix circular initialization bug. 
llvm-svn: 173968
 2013-01-30 20:36:56 +00:00
Michael J. Spencer 901fd6a4c8 [ELF] Use the target's LayoutHandler. 
llvm-svn: 173966
 2013-01-30 20:05:27 +00:00
Shankar Easwaran e07245cdfc hexagon targetinfo changes for getting the relocation kind from string and vice versa 
llvm-svn: 173942
 2013-01-30 16:05:43 +00:00
Shankar Easwaran ddb122811b simplify hexagon relocations handling 
llvm-svn: 173938
 2013-01-30 15:38:41 +00:00
Michael J. Spencer 23d23953b3 [ELF][x86-64] Add TargetLayout. 
llvm-svn: 173922
 2013-01-30 10:43:25 +00:00
Michael J. Spencer 8254185eea Whitespace. 
llvm-svn: 173921
 2013-01-30 10:43:10 +00:00
Michael J. Spencer d21b72730f [ELF] Remove ReferenceKinds. 
llvm-svn: 173912
 2013-01-30 07:46:54 +00:00
Michael J. Spencer f35c3e434a [ELF] Use TargetRelocationHandler to apply relocations. 
llvm-svn: 173911
 2013-01-30 07:46:31 +00:00
Michael J. Spencer 409a737f36 [ELF] Add {Hexagon,PPC,X86}TargetHandler. 
llvm-svn: 173909
 2013-01-30 07:36:45 +00:00
Shankar Easwaran 396e4c0b13 change DefaultLayout to TargetLayout inside member variables 
llvm-svn: 173906
 2013-01-30 07:19:57 +00:00
Shankar Easwaran a6f00fe083 add targethandler hooks from Writer and cleanup 
llvm-svn: 173904
 2013-01-30 07:11:43 +00:00
Michael J. Spencer 457a77739b [ELF][x86-64] Add X86_64TargetRelocationHandler and friends. 
llvm-svn: 173897
 2013-01-30 05:26:03 +00:00
Michael J. Spencer 4e9d9cd23b [ELF] Add ELFTargetRelocationHandler. 
llvm-svn: 173896
 2013-01-30 05:25:44 +00:00
Michael J. Spencer 4260657fab [ELF] Make AtomLayout more accessible. 
This is needed to allow constant time access to the final layout of atoms.

llvm-svn: 173874
 2013-01-30 01:25:06 +00:00
Michael J. Spencer e68f90355c [ELF] Chop the ELF prefix off of most things. 
llvm-svn: 173838
 2013-01-29 22:03:39 +00:00
Shankar Easwaran 185e8a076d remove targetInfo and layout from ELFTargetLayout 
llvm-svn: 173824
 2013-01-29 20:13:16 +00:00
Michael J. Spencer 43ecac5a2c [ELF] Fix header sort order. 
llvm-svn: 173822
 2013-01-29 19:53:41 +00:00
Michael J. Spencer 289dcedea5 [ELF] Add support for IFUNC. 
This sadly doesn't have a test for the final
output because llvm-objdump can't dump relocations
that don't belong to a section :(

llvm-svn: 173808
 2013-01-29 16:38:03 +00:00
Michael J. Spencer bf77be3ba5 [ELF] Give Chunk a ELFTargetInfo. 
llvm-svn: 173743
 2013-01-29 01:07:47 +00:00
Michael J. Spencer adfb7eb211 [ELF] Remove OwningPtr from the Chunk::write interface. 
llvm-svn: 173741
 2013-01-29 01:00:21 +00:00
Michael J. Spencer bdf8bc8315 [ELF] Clean up doxygen comments. 
llvm-svn: 173740
 2013-01-29 01:00:04 +00:00
Shankar Easwaran 072fb1a403 add register section, remove contentType from sectionKey 
llvm-svn: 173709
 2013-01-28 19:21:04 +00:00
Michael J. Spencer 990ec2b223 [ELF] Use entry point from LinkerOptions. 
Patch by Ahmed Bougacha!

llvm-svn: 173655
 2013-01-28 04:15:44 +00:00