456bd05d97
[ELF2][mips] Support elf32ltsmip/elf32btsmip target emulation as the -m arguments
...
llvm-svn: 249683
2015-10-08 12:13:38 +00:00
d42f4e5389
Add a convenience variable. NFC.
...
llvm-svn: 249682
2015-10-08 12:02:38 +00:00
90c5099e8a
[ELF2] Add ENTRY command to the linker script
...
Set ENTRY as an entry point if -e is not specified.
Differential Revision: http://reviews.llvm.org/D13509
llvm-svn: 249661
2015-10-08 06:48:38 +00:00
10c415fd63
Remove a default which immediately breaks.
...
getID()'s return type is unsigned int, so I don't think we need this
default for -Wswitch-enum.
llvm-svn: 249650
2015-10-08 03:21:29 +00:00
aca48ffb41
ELF2: Inititalize other symbols only once as well.
...
llvm-svn: 249645
2015-10-08 00:44:28 +00:00
833ce281db
ELF2: Make member variable names shorter.
...
I'm going to use them in other patches, and the names feel too long
despite their narrow scope.
llvm-svn: 249642
2015-10-08 00:29:00 +00:00
9ea49c7948
ELF2: Initialize SyntheticOptional only once.
...
llvm-svn: 249636
2015-10-07 23:46:11 +00:00
e66e001c90
ELF2: Use the same name as COFF.
...
llvm-svn: 249635
2015-10-07 23:20:23 +00:00
8d9ace60ca
[ELF/AArch64] Add tests to verify we handle overflow correctly for relocs.
...
llvm-svn: 249634
2015-10-07 23:15:22 +00:00
f82a0eef13
ELF2: Use `-flavor gnu2` after `not` to fix Windows buildbot.
...
`not` command on Windows is not able to find an executable from PATH
if a given command already has an extension even if the extension is
not ".exe".
llvm-svn: 249630
2015-10-07 22:20:43 +00:00
c3858ab82e
[ELF2] Garbage collect or{16,64}le. They're now unused.
...
llvm-svn: 249628
2015-10-07 22:11:20 +00:00
06d843226b
[ELF2/AArch64] _ABS* relocations don't read contents. Fix it.
...
Spotted by: Rafael Espindola.
llvm-svn: 249627
2015-10-07 22:10:02 +00:00
e1f91529c8
ELF2: Rename dupError() -> reportConflict().
...
llvm-svn: 249622
2015-10-07 21:37:24 +00:00
0d0bcf7433
ELF2: Stop using SymbolTableSection as a container for SymbolTable.
...
`Symtab` is better than `Out<ELFT>::SymTab->getSymTable()`.
llvm-svn: 249619
2015-10-07 21:25:39 +00:00
2cac5843a0
ELF2: Define a utility function to handle simple command line options.
...
llvm-svn: 249592
2015-10-07 19:34:51 +00:00
15ef5e174b
ELF2: Make singleton output sections globally accessible.
...
Previously, output sections that are handled specially by the linker
(e.g. PLT or GOT) were created by Writer and passed to other classes
that need them. The problem was that because these special sections
are required by so many classes, the plumbing work became too much
burden.
This patch is to simply make them accessible from anywhere in the
linker to eliminate the plumbing work once and for all.
http://reviews.llvm.org/D13486
llvm-svn: 249590
2015-10-07 19:18:16 +00:00
730c27894a
[ELF2] - fix to use PLT/GOT for DSO function calls (X86TargetInfo)
...
Differential Revision: http://reviews.llvm.org/D13522
llvm-svn: 249588
2015-10-07 18:46:13 +00:00
75230398c2
ELF2: De-templatize writeResult for simplicity.
...
llvm-svn: 249586
2015-10-07 18:29:51 +00:00
58d7d704d8
Style fix.
...
llvm-svn: 249584
2015-10-07 18:22:46 +00:00
87c647aee1
Remove remaining uses of "-flavor gnu2".
...
llvm-svn: 249582
2015-10-07 18:20:07 +00:00
60fe7fcc6b
ELF2: Use ld.lld2 instead of lld -flavor gnu2.
...
llvm-svn: 249573
2015-10-07 17:31:39 +00:00
b4908761f8
ELF2: Rename local variable name `Out` in preparation to define `Out` global var.
...
llvm-svn: 249568
2015-10-07 17:04:18 +00:00
0db335fd5e
ELF2: Move functions out of line.
...
llvm-svn: 249566
2015-10-07 16:58:54 +00:00
97aad172b8
[ELF2] -z now option implemented
...
When generating an executable or shared library, mark it to tell the dynamic linker to resolve all symbols when the program is started, or when the shared library is linked to using dlopen, instead of deferring function call resolution to the point when the function is first called.
Differential Revision: http://reviews.llvm.org/D13468
llvm-svn: 249551
2015-10-07 15:00:21 +00:00
1ef7b3ff55
[ELF2] Handle -m option
...
Parse and apply emulation given with -m option.
Check input files to match ELF type and machine architecture provided with -m.
Differential Revision: http://reviews.llvm.org/D13055
llvm-svn: 249529
2015-10-07 09:13:03 +00:00
92aa1c02df
[ELF2] Fix gcc build error
...
llvm-svn: 249524
2015-10-07 08:21:34 +00:00
cea0b3b45d
Don't create dynamic relocations for weak undefined symbols.
...
llvm-svn: 249520
2015-10-07 04:22:55 +00:00
e782f673a8
Skip entries handled by the dynamic linker.
...
We were writing got entries in the first positions, not in the positions
corresponding to locally defined symbols.
llvm-svn: 249518
2015-10-07 03:56:05 +00:00
c05ad3dedb
Create linker generated symbols earlier.
...
We were incorrectly deciding that a dynamic relocation was needed for them.
llvm-svn: 249512
2015-10-07 02:51:44 +00:00
cbffa8cc97
Add missing % to t2.so.
...
llvm-svn: 249505
2015-10-07 02:01:47 +00:00
52dca345db
Create simpler dynamic relocations for local symbols in got.
...
If the symbol is not preemptable, we can use a R_X86_64_RELATIVE.
llvm-svn: 249496
2015-10-07 00:58:20 +00:00
ee59282bfd
ELF2: Implement OUTPUT() linker script directive.
...
llvm-svn: 249491
2015-10-07 00:25:09 +00:00
3378526f34
Fix typo.
...
llvm-svn: 249488
2015-10-07 00:15:43 +00:00
a662738e02
Don't create dynamic relocations when its known what the got points to.
...
llvm-svn: 249485
2015-10-06 23:56:53 +00:00
4b81795c2a
Update tests for upcoming change.
...
I am about to change lld to avoid creating unnecessary got entries for locally
defined symbols when creating executables.
Update tests that were depending on the current behavior.
llvm-svn: 249474
2015-10-06 21:52:48 +00:00
f32446fb65
[elf2] Correctly determine if we should ignore missing __tls_get_addr.
...
llvm-svn: 249462
2015-10-06 20:39:09 +00:00
aad4402097
[ELF2] Address r249428 post comit review. Style + test trim.
...
llvm-svn: 249451
2015-10-06 20:02:15 +00:00
fcacad263a
[elf2] Fix style.
...
llvm-svn: 249450
2015-10-06 19:57:05 +00:00
ee8c53bbe2
ELF2: Inline small functions.
...
llvm-svn: 249449
2015-10-06 19:57:01 +00:00
b5fb88584a
ELF2: Update README.
...
llvm-svn: 249447
2015-10-06 19:21:13 +00:00
ef4be6b4fe
[ELF2/AArch64] Function names should start with a verb (lower case).
...
Pointed out by: Rafael Espindola.
llvm-svn: 249443
2015-10-06 19:01:32 +00:00
87bc41bcee
ELF2: Use shorter names before this file grows larger.
...
llvm-svn: 249441
2015-10-06 18:54:43 +00:00
33bb1a23b3
ELF2: or{16,32,64}le should really do bitwise-OR.
...
llvm-svn: 249436
2015-10-06 18:11:18 +00:00
190beb3144
ELF2: Define or{16,32,64}le that are analogous to add32le.
...
llvm-svn: 249435
2015-10-06 18:08:03 +00:00
c39c75dee4
[ELF2] Implement --{enable, disable}-new-dtags options.
...
llvm-svn: 249428
2015-10-06 16:20:00 +00:00
85a6e0f870
Never fetch members for weak undefined symbols.
...
We were still fetching them when the archive was seen first.
We should experiment with just letting lazy symbols get to compare, it
might be cleaner for ELF.
llvm-svn: 249417
2015-10-06 15:18:50 +00:00
b90582dbbd
Avoid recursive calls to init (we would crash).
...
llvm-svn: 249412
2015-10-06 15:03:52 +00:00
8614c566e2
Handle strong undefined symbols fetching members after a weak undefined.
...
This is a case that requires --start-group --end-group with regular ELF
linkers. Fortunately it is still possible to handle it with lazy symbols without
taking a second look at archives.
Thanks to Michael Spencer for the bug report.
llvm-svn: 249406
2015-10-06 14:33:58 +00:00
6f4bd532d3
Rearrange a bit for clarity. NFC.
...
llvm-svn: 249404
2015-10-06 14:17:53 +00:00
03ab3368a0
External symbols need a full dynamic reloc, not R_X86_64_RELATIVE.
...
We were already doing the right thing if the symbol was seen in a shared
library, but not if it was completely missing.
llvm-svn: 249397
2015-10-06 12:39:58 +00:00
d01ffbdb1b
Fixed typo
...
llvm-svn: 249393
2015-10-06 12:08:08 +00:00
6e78d16b3b
[elf2] Address style comments.
...
llvm-svn: 249368
2015-10-06 02:13:54 +00:00
95538ca99a
[elf2] Add __preinit_array, and __fini_array start and end symbols.
...
llvm-svn: 249367
2015-10-06 01:16:17 +00:00
4c46f57a49
[elf2] Ignore __tls_get_addr when static linking.
...
llvm-svn: 249365
2015-10-06 00:45:42 +00:00
41127ad7af
Fix R_X86_64_RELATIVE for local symbols that refer to other sections.
...
We were mixing up the relocated and target sections.
llvm-svn: 249360
2015-10-05 22:49:16 +00:00
b4606e183e
[ELF2/AArch64] Read the right amount of bytes.
...
This was clearly wrong (thanks Rui for spotting), and I honestly would
like to get this tested so such mistakes won't repeat. Unfortunately, I
wasn't (easily) able to craft a test that exposes the bad behavior.
Ideally, we would like to get tests of this kind for all relocations, but
at the time of writing, this is not true. So, for now just fix this bug
and try to re-evaluate a way to test this in the future.
llvm-svn: 249359
2015-10-05 22:43:42 +00:00
9c3e4d2af5
Handle a common symbol needing a R_X86_64_RELATIVE.
...
llvm-svn: 249357
2015-10-05 21:23:08 +00:00
3c83e2bbfb
Include existing addend when computing R_X86_64_RELATIVE.
...
llvm-svn: 249353
2015-10-05 21:09:37 +00:00
d75fbd221d
Make this test a bit more strict.
...
Before the ADDR variables could match the empty string.
llvm-svn: 249350
2015-10-05 20:54:39 +00:00
ae24400424
Create R_X86_64_RELATIVE when needed.
...
The dynamic relocation code needs refactoring, but it is probably better
to do it with this test passing.
llvm-svn: 249340
2015-10-05 19:30:12 +00:00
d1cf421bd5
Don't copy STT_SECTION from the inputs.
...
This matches the behavior of gold and bfd ld.
llvm-svn: 249326
2015-10-05 16:25:43 +00:00
024c84c77c
Remove an extra blank line.
...
llvm-svn: 249324
2015-10-05 16:05:18 +00:00
4f674ed138
Include hidden and internal symbols in the regular symbol table.
...
This matches the behavior of bfd ld and gold. It is also convenient for
testing other changes.
llvm-svn: 249323
2015-10-05 15:24:04 +00:00
b1f2b51a89
[ELF2] Add DT_INIT and DT_FINI dynamic table entries
...
The entries are added if there are "_init" or "_fini" entries in
the symbol table respectively. According to the behavior of ld,
entries are inserted even for undefined symbols.
Symbol names can be overridden by using -init and -fini command
line switches. If used, these switches neither add new symbol table
entries nor require those symbols to be resolved.
Differential Revision: http://reviews.llvm.org/D13385
llvm-svn: 249297
2015-10-05 10:29:46 +00:00
22220d5d5f
[ELF2] Add --undefined option
...
Add symbol specified with -u as undefined which may cause additional
object files from archives to be linked into the resulting binary.
Differential Revision: http://reviews.llvm.org/D13345
llvm-svn: 249295
2015-10-05 09:43:57 +00:00
b00e523d00
[ELF2/AArch64] R_AARCH64_ABS{16,32} can fail.
...
Add tests to ensure we handle this case this case gracefully.
llvm-svn: 249255
2015-10-04 01:08:58 +00:00
df88f968e3
[ELF2/AArch64] Add support for AARCH64_ABS{16,32,64} relocations.
...
I saw these in the wild while trying to link shared libraries.
llvm-svn: 249254
2015-10-04 00:59:16 +00:00
0b6974bfe0
[ELF/AArch64] Support R_AARCH64_ADR_PREL_PG_H121 relocation.
...
llvm-svn: 249246
2015-10-03 19:56:07 +00:00
2c86fb4bde
Accept --dynamic-linker in addition to -dynamic-linker.
...
This matches what bfd ld accepts.
llvm-svn: 249234
2015-10-03 09:32:48 +00:00
21e4e148c6
Add -rpath= alias for -rpath
...
llvm-svn: 249230
2015-10-03 06:54:24 +00:00
7744d9a201
[elf2] Remove unused flag in test.
...
llvm-svn: 249204
2015-10-02 22:39:35 +00:00
d9b5be4c83
[ELF/AArch64] Fix a couple of typos. My bad, sorry.
...
llvm-svn: 249201
2015-10-02 22:17:09 +00:00
5713b8d0db
ELF2: Use less templates so that we can use struct assignment. NFC.
...
llvm-svn: 249200
2015-10-02 22:17:07 +00:00
318ca22914
[ELF2/AArch64] Add comment and change name to match the one of the ABI.
...
Fix style while I'm here.
llvm-svn: 249198
2015-10-02 22:13:51 +00:00
1f31a2c11c
[ELF2/AArch64] Add support for R_AARCH64_ADR_PREL_PG_H121
...
llvm-svn: 249195
2015-10-02 22:00:42 +00:00
ed3476b79f
[elf2] Add STB_GNU_UNIQUE support.
...
llvm-svn: 249193
2015-10-02 21:57:52 +00:00
04dae558f4
ELF2: Make Writer::assignAddress() a bit shorter. NFC.
...
llvm-svn: 249190
2015-10-02 21:23:17 +00:00
0fb1ee0c77
Fix variable names.
...
llvm-svn: 249188
2015-10-02 21:13:19 +00:00
75c2feb753
Rename alias definitions by both aliased and alias name
...
Differential Revision: http://reviews.llvm.org/D13397
llvm-svn: 249186
2015-10-02 21:01:59 +00:00
7757224466
Add static initialization/finalization array support.
...
This adds entries in the dynamic table for .init_array, .fini_array and
.preinit_array.
llvm-svn: 249175
2015-10-02 19:37:55 +00:00
58d7ee397d
[ELF2] Simplify test from r249150
...
As Rafael pointed out, we don't need quite so many flags on the llvm-readobj
RUN line here.
llvm-svn: 249162
2015-10-02 17:57:29 +00:00
b2a5cafb37
Weak undefined symbols should not fetch archive members.
...
llvm-svn: 249160
2015-10-02 17:41:22 +00:00
d26da9258f
[ELF2] Fix mixed-Endian handling in DynamicSection<ELFT>::writeTo
...
Using the "raw" Elf64_Dyn or Elf32_Dyn structures in
DynamicSection<ELFT>::writeTo does not correctly handle mixed-Endian
situations. Instead, use the corresponding llvm::object::* structures which
have Endian-converting members (like the rest of the code).
This fixes all currently-failing elf2 tests when running on big-Endian
PPC64/Linux (I've added a big-Endian test case which should fail on
little-Endian machines in the same way that test/elf2/shared.s failed on
big-Endian machines prior to this change).
llvm-svn: 249150
2015-10-02 16:21:30 +00:00
4876c886fc
Ignore --version-script.
...
llvm-svn: 249149
2015-10-02 16:20:39 +00:00
2dab6c9bcc
Allow -soname arg in addition to -soname=arg
...
Differential Revision: http://reviews.llvm.org/D13387
llvm-svn: 249146
2015-10-02 15:45:26 +00:00
9c95ac2946
Ignore --enable-new-dtags and --no-fatal-warnings
...
Found while testing a FreeBSD base system build with lld. Ignored for
now while we continue to identify missing options and functionality.
llvm-svn: 249144
2015-10-02 15:29:31 +00:00
fc96a263a1
Ignore options used during a clang build.
...
llvm-svn: 249135
2015-10-02 14:25:26 +00:00
327b178dd6
Accept some options with both -- and -.
...
This matches what both gold and bfd ld accept.
llvm-svn: 249134
2015-10-02 14:21:24 +00:00
7d76847da3
Simplify. NFC.
...
llvm-svn: 249128
2015-10-02 13:23:29 +00:00
98efd89e7e
Use ld.lld2 as a argv[0] alias.
...
The reason for the name is so that we can run
./build/bin/clang -fuse-ld=lld2 test.o -o t
llvm-svn: 249122
2015-10-02 12:57:34 +00:00
8c205d5394
ELF2: Merge duplicates using lambdas. NFC.
...
llvm-svn: 249118
2015-10-02 01:33:31 +00:00
43155d0d48
[LLD] Fix Clang-tidy modernize-use-nullptr warnings; other minor cleanups.
...
Patch from Eugene Zelenko!
llvm-svn: 249111
2015-10-02 00:36:00 +00:00
b660b61954
[elf2] Ignore --{start,end}-group.
...
llvm-svn: 249093
2015-10-01 22:54:37 +00:00
8f13bef575
Ignore --no-add-needed.
...
llvm-svn: 249089
2015-10-01 22:31:38 +00:00
dc7f5f2b77
Remove dead file.
...
llvm-svn: 249080
2015-10-01 21:51:07 +00:00
5d41326751
Still define __init_array_(start|end) if there is no .init_array.
...
This matches the behavior of other linkers and seems necessary to link
in some older systems.
llvm-svn: 249077
2015-10-01 21:22:26 +00:00
d31088b37a
Simplify instantiation. NFC.
...
llvm-svn: 249074
2015-10-01 21:18:37 +00:00
52bf0ebfdf
[lld][elf2] Sort output sections.
...
Sort by:
ALLOC
ALLOC && NOBITS
ALLOC & EXEC
ALLOC & EXEC && NOBITS
ALLOC & WRITE
ALLOC & WRITE && NOBITS
<nothing> (ignoring NOBITS)
The dynamic section is finalized early because it adds strings to the dynamic string table, which comes before the dynamic table.
llvm-svn: 249071
2015-10-01 21:15:02 +00:00
3e60379fd9
Don't crash on files with no symbol table.
...
Thanks to Roman Divacky for the test.
llvm-svn: 249066
2015-10-01 20:26:37 +00:00
57e40deb8d
[ELF2] Implement --no-undefined flag.
...
llvm-svn: 249064
2015-10-01 20:14:45 +00:00
ff1dcc59d9
Make the test a bit stronger.
...
This shows that it is really DT_SONAME that is used to detect dups.
llvm-svn: 249062
2015-10-01 20:04:31 +00:00
6a3b5ded8a
Don't include shared libraries multiple times.
...
llvm-svn: 249061
2015-10-01 19:52:48 +00:00
b9287b1fba
ELF2: Use -soname to create a test .so file. Remove the .so binary from repository.
...
llvm-svn: 249059
2015-10-01 19:39:02 +00:00
7de3f3719a
ELF2: Add -soname option.
...
llvm-svn: 249058
2015-10-01 19:36:04 +00:00
03c48b01bf
[CMake] Don't include the lld test directory if LLVM_INCLUDE_TESTS is Off
...
This matches the behavior of LLVM and Clang.
llvm-svn: 249050
2015-10-01 18:17:47 +00:00
2696bbeb93
[ELF2] Add --[no-]whole-archive command line switches
...
Summary:
If --whole-archive is used, all symbols from the following archives are added to the output. --no-whole-archive restores default behavior. These switches can be used multiple times.
NB. We have to keep an ArchiveFile instance within SymbolTable even if --whole-archive mode is active since it can be a thin archive which contains just names of external files. In that case actual memory buffers for the archive members will be stored within the File member of ArchiveFile class.
Reviewers: rafael, ruiu
Subscribers: grimar, llvm-commits
Projects: #lld
Differential Revision: http://reviews.llvm.org/D13286
llvm-svn: 249045
2015-10-01 18:02:21 +00:00
fd124db996
ELF2: Tidy up Options.td again.
...
llvm-svn: 249038
2015-10-01 17:33:38 +00:00
47d4f9496c
Remove trailing whitespaces.
...
llvm-svn: 249037
2015-10-01 17:33:36 +00:00
ee05828261
[ELF2] Implement --allow-shlib-undefined as default behavior.
...
We ignore --{no,}allow-shlib-undefined options and always allow undefined
symbols if we are building a DSO.
llvm-svn: 249036
2015-10-01 17:24:24 +00:00
d912ee9595
[ELF2] Add -Bstatic and -Bdynamic command line switches
...
Summary:
These switches affect library searching for '-l' which follow them. Synonym forms are also supported:
* -dy and -call_shared for -Bdynamic switch
* -dn, -non_shared and -static for -Bstatic switch
Reviewers: rafael, ruiu
Subscribers: emaste, llvm-commits
Projects: #lld
Differential Revision: http://reviews.llvm.org/D13238
llvm-svn: 249029
2015-10-01 16:42:03 +00:00
c8b158155c
Copy DT_SONAME to DT_NEEDED.
...
If a shared library has a DT_SONAME entry, that is what should be included
in the DT_NEEDED of a program using it.
We don't implement -soname yet, so check in a .so for now.
llvm-svn: 249025
2015-10-01 15:47:50 +00:00
bd35d75e42
ELF2: Linker scripts can refer other linker scripts. Test that.
...
This did not work before r249023.
llvm-svn: 249024
2015-10-01 15:45:41 +00:00
983ed2b749
ELF2: Define Driver::addFile() as a one-stop place to open a file.
...
Opening a file and dispatching to readLinkerScript() or createFile()
is a common operation. We want to use that at least from Driver and
from LinkerScript. In COFF, we had the same problem. This patch
resolves the problem in the same way as we did for COFF.
Now, if you have a path that you want to open, just call
Driver->addFile(StringRef). That function opens the file and handles
that as if that were given by command line. This function is the
only place we call identify_magic().
llvm-svn: 249023
2015-10-01 15:23:09 +00:00
44f5d91af9
ELF2: Rename undefError -> reportUndefined.
...
The new name starts with a verb, and it does not imply that it errors
out and exit (it acutally can just emit a warning depending on settings.)
llvm-svn: 249016
2015-10-01 14:46:54 +00:00
1c8092c915
ELF2: Tidy up Options.td.
...
Fix indentation and sort options alphabetically.
llvm-svn: 248969
2015-10-01 00:33:02 +00:00
5d8ef2cbd8
ELF2: Ignore some command line argument that clang passes to the linker.
...
llvm-svn: 248967
2015-10-01 00:24:54 +00:00
819f7127c0
ELF2: Move tests for linker script from basic.s to linkerscript.s.
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llvm-svn: 248961
2015-09-30 23:15:35 +00:00
2dfd74f758
ELF2: Add DT_REL{,A}ENT and DT_SYMENT.
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According to the ELF specification, these dynamic array entries are mandatory.
http://reviews.llvm.org/D13303
llvm-svn: 248952
2015-09-30 21:57:53 +00:00
c02fcafef6
[ELF2] Expand test comment a little bit, use reloc name as section name.
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llvm-svn: 248930
2015-09-30 19:44:30 +00:00
7971152589
ELF2: Do not set default values that will always be overwritten.
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These member variables are overwritten unconditionally by Driver,
so setting default values would be confusing.
llvm-svn: 248922
2015-09-30 17:26:13 +00:00
f7c5fbb1ca
ELF2: Create LinkerScript.cpp and move code from DriverUtils to there.
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llvm-svn: 248920
2015-09-30 17:23:26 +00:00
bf506b7d48
ELF2: LinkerScript: Handle quoted tokens.
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llvm-svn: 248919
2015-09-30 17:15:29 +00:00
f5c4aca98f
ELF2: Add basic linker script support.
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This linker script parser and evaluator is powerful enough to read
Linux's libc.so, which is (despite its name) a linker script that
contains OUTPUT_FORMAT, GROUP and AS_NEEDED directives.
The parser implemented in this patch is a recursive-descendent one.
It does *not* construct an AST but consumes directives in place and
sets the results to Symtab object, like what Driver is doing.
This should be very fast since less objects are allocated, and
this is also more readable.
http://reviews.llvm.org/D13232
llvm-svn: 248918
2015-09-30 17:06:09 +00:00
3c412e14cc
Expand a comment a bit.
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llvm-svn: 248894
2015-09-30 12:30:58 +00:00
431f94c8e0
test commit
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llvm-svn: 248890
2015-09-30 11:42:29 +00:00
f03d2b4d1c
[ELF2] Simplify buildSysrootedPath()
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Reviewed by: rafael
llvm-svn: 248885
2015-09-30 10:39:37 +00:00
82d705e6d9
Remove unused declaration and forward declaration.
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llvm-svn: 248877
2015-09-30 03:31:05 +00:00
d0e5aebf3a
Expand `auto` whose real type is not obvious from context.
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llvm-svn: 248876
2015-09-30 02:42:27 +00:00
90b3daaa5c
Remove `else` after `return`.
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llvm-svn: 248875
2015-09-30 02:37:51 +00:00
294b136db4
Remove `explicit` from constructors that take more than one parameter.
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llvm-svn: 248873
2015-09-30 02:06:17 +00:00
5ba3ac4f10
Simplify switch statements. NFC.
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llvm-svn: 248871
2015-09-30 01:40:08 +00:00
c55733e79c
ELF2: Advance the buffer pointers right after we use them.
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So that it is clear that we are incrementing the pointers for sure. NFC.
llvm-svn: 248868
2015-09-30 00:54:29 +00:00
b189b5c535
Make template instantiation code a bit shorter. NFC.
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llvm-svn: 248866
2015-09-30 00:43:22 +00:00
8ddfa812af
ELF2: Split SymbolTableSection<ELFT>::writeTo into two smaller functions.
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Also added brief comments.
llvm-svn: 248864
2015-09-30 00:32:10 +00:00
e3fbc89c44
ELF2: Do not use host pointer size to calculate x86_64 relocation addresses.
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Previous code had a potential portability issue because intptr_t is
not guaranteed to be 64 bit.
llvm-svn: 248856
2015-09-29 23:25:21 +00:00
9a0db7cbef
Fix typo.
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llvm-svn: 248855
2015-09-29 23:23:53 +00:00
3ef3a4c9ff
Start adding support for static programs using dynamic libraries.
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This is just enough for a hello world using a dynamic glibc.
llvm-svn: 248854
2015-09-29 23:22:16 +00:00
6a78fd5f41
This reverts commit r248845 and r248848.
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They broke elf2/basic-mips.s.
Revert "[elf2] Sort output sections."
Revert "[elf2] Fix build."
llvm-svn: 248851
2015-09-29 23:19:25 +00:00
85bbe0c46b
Remove the dependency to 'test' command.
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llvm-svn: 248849
2015-09-29 23:13:40 +00:00
a0abcfd8e7
[elf2] Fix build.
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llvm-svn: 248848
2015-09-29 23:12:50 +00:00
fe07bd67fd
[elf2] Sort output sections.
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Sort by:
ALLOC
ALLOC && NOBITS
ALLOC & EXEC
ALLOC & EXEC && NOBITS
ALLOC & WRITE
ALLOC & WRITE && NOBITS
<nothing> (ignoring NOBITS)
The dynamic section is finalized early because it adds strings to the dynamic string table, which comes before the dynamic table.
llvm-svn: 248845
2015-09-29 23:05:40 +00:00
1500a90093
ELF2: Do not create ArrayRefs and use const arrays instead. NFC.
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llvm-svn: 248844
2015-09-29 23:00:47 +00:00
511631975d
ELF2: Make default-output.s test idempotent.
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This test failed if being run more than once because of the
remaining file of the last run.
llvm-svn: 248843
2015-09-29 22:57:22 +00:00
a7e628ff10
ELF2: Unbreak buildbot.
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Subshell didn't work on Windows.
llvm-svn: 248840
2015-09-29 22:46:52 +00:00
4993d0eb51
ELF2: Sort Config member variables. NFC.
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llvm-svn: 248838
2015-09-29 22:33:21 +00:00
d7c417c03e
ELF2: Assign bool values directly. NFC.
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llvm-svn: 248837
2015-09-29 22:33:18 +00:00
4eed0114c5
ELF2: Use 'a.out' as default output file name.
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llvm-svn: 248831
2015-09-29 21:49:40 +00:00
2d73648667
Update test to use invalid elf file in archives.
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The code in driver is about to change so that the invalid files would no
longer be seen as ELF.
This makes sure that the error path will remain tested.
llvm-svn: 248820
2015-09-29 18:44:18 +00:00
9d4c6d771b
[ELF2] Implemented --entry flag.
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Patch from George Rimar!
llvm-svn: 248806
2015-09-29 16:40:13 +00:00
8acb95c7ab
Add support for R_386_GOT32.
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llvm-svn: 248799
2015-09-29 14:42:37 +00:00
be901e2dbc
Don't apply a relocation if we create a dynamic reloc.
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With RELA that is just wasteful, with REL the relocation gets applied
twice.
llvm-svn: 248795
2015-09-29 13:51:43 +00:00
6d7fcdb518
Add R_386_GOTPC support.
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llvm-svn: 248793
2015-09-29 13:36:32 +00:00
49829a1bfe
[ELF2] Add initial MIPS support
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Besides a trivial MIPS support the patch introduces new TargetInfo class
member getDefaultEntry() to override default name of the entry symbol.
MIPS uses __start for that.
Differential Revision: http://reviews.llvm.org/D13227
llvm-svn: 248779
2015-09-29 05:34:03 +00:00
e211e204da
NFC: Fix spelling error in comment.
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llvm-svn: 248768
2015-09-29 00:21:38 +00:00
2732235508
Try to fix gcc warning
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llvm-svn: 248749
2015-09-28 22:12:54 +00:00
5f19f1224c
Delete dead code.
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llvm-svn: 248747
2015-09-28 22:07:52 +00:00
9a4c94ec5a
[lld][MachO] Fix a think-o to get the twolevel/dynamic_lookup test passing.
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llvm-svn: 248736
2015-09-28 20:52:21 +00:00
4b2ca85c1a
Implement --allow-multiple-definition.
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Patch by George Rimar!
llvm-svn: 248733
2015-09-28 20:30:11 +00:00
5c692009bc
[lld][MachO] Initial implementation of -flat_namespace and -undefined.
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This is a basic initial implementation of the -flat_namespace and
-undefined options for LLD-darwin. It ignores several subtlties,
but the result is close enough that we can now link LLVM (but not
clang) on Darwin and pass all regression tests.
llvm-svn: 248732
2015-09-28 20:25:14 +00:00
085a8f5ea7
Don't include fully resolved relocations in the dynamic relocation table.
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llvm-svn: 248731
2015-09-28 20:18:40 +00:00
46e01554b1
Add support for got/ptl referring to symbols defined in .o files.
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llvm-svn: 248730
2015-09-28 19:48:34 +00:00
dfc7200b18
Add support for local absolute symbols.
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llvm-svn: 248726
2015-09-28 18:29:47 +00:00
c5e22d906b
ELF2: Include file names in error messages.
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llvm-svn: 248724
2015-09-28 18:20:41 +00:00
1309fc0378
[ELF2] Add --sysroot command line switch
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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
eb990af31e
Trying to fix the windows build.
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llvm-svn: 248709
2015-09-28 13:11:36 +00:00
abb7b28686
Add support for -L and -l command line switches.
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Patch by Igor Kudrin!
llvm-svn: 248708
2015-09-28 12:52:21 +00:00
83af95d927
Enable the aarch64 tests.
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llvm-svn: 248707
2015-09-28 12:22:25 +00:00
aabc45b5ad
[ELF] Sort a list of cases alphabetically for consistency/clarity. NFC.
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llvm-svn: 248680
2015-09-27 09:01:28 +00:00
1d750a6fc3
[ELF2/AArch64] Support for R_AARCH64_ADR_PREL_LO21 relocation.
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llvm-svn: 248679
2015-09-27 08:45:38 +00:00
00eecb88a4
lld/test/elf2/basic-aarch64.s should not REQUIRE x86.
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FIXME: The feature "arm64" is not activated in lit.cfg.
llvm-svn: 248664
2015-09-26 09:21:58 +00:00
6993ba4d3e
[ELF2] Don't inline function and define it in OutputSection.cpp. NFC.
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Reported/Requested by: Rafael Espindola
llvm-svn: 248643
2015-09-26 00:47:56 +00:00
f096e10a47
[ELF2] Spell llvm-readobj correctly.
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llvm-svn: 248642
2015-09-26 00:43:49 +00:00
cde9336717
[ELF2] Add initial AArch64 support.
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Differential Revision: http://reviews.llvm.org/D13167
llvm-svn: 248641
2015-09-26 00:32:04 +00:00
d0626804fc
ELF/AMDGPU: Text section should be called .hsatext
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Reviewers: atanasyan, ruiu
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12447
llvm-svn: 248621
2015-09-25 21:42:30 +00:00
84aff152d9
Simplify enumeration definition.
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Thanks to Rui for the suggestion.
llvm-svn: 248615
2015-09-25 21:20:23 +00:00
551dfd8818
Implement --noinhibit-exec.
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Patch by George Rimar!
llvm-svn: 248605
2015-09-25 19:24:57 +00:00
0e604f913a
Add support for creating the symbols __init_array_start and __init_array_end.
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llvm-svn: 248604
2015-09-25 18:56:53 +00:00
5b197f0620
Fix the typedef.
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Thanks to David Blaikie for noticing.
llvm-svn: 248602
2015-09-25 18:32:09 +00:00
cd076f0113
Move more logic to getSymVA to avoid code duplication.
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llvm-svn: 248599
2015-09-25 18:19:03 +00:00
25b0acb57e
Move variables closer to use. NFC.
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llvm-svn: 248590
2015-09-25 17:32:37 +00:00
35c6af3c9c
Move a few methods out of line. NFC.
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llvm-svn: 248586
2015-09-25 17:19:10 +00:00
548d22c073
COFF: ICF should not merge sectinos if their alignments are not the same.
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There's actually a room to improve this patch. Instead of not merging
sections that have different alignements, we can choose the section that
has the largest alignment requirement among all sections that are otherwise
considered the same. Then all section alignments are satisfied, so we can
merge them.
I don't know if that improvement could make any difference for real-world
input, so I'll leave it alone. Would be interesting to revisit later.
llvm-svn: 248581
2015-09-25 16:50:12 +00:00
c9e746b9e6
COFF: Fix local varaible type.
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This is intended to be 64-bit integer, but size_t is not guranteed
to be the same or larger type than uint64_t.
llvm-svn: 248580
2015-09-25 16:38:13 +00:00
de88072a00
COFF: Rename Ptr -> Repl.
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This pointer points to a replacement for this chunk. Ptr was not a good name.
llvm-svn: 248579
2015-09-25 16:20:24 +00:00
eeb22f8251
ELF2: Support reponse files.
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http://reviews.llvm.org/D13148
llvm-svn: 248575
2015-09-25 15:37:33 +00:00
38af127c6a
Fix the parent class of SharedSymbol.
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It is a defined symbol according to classof. Found by inspection.
llvm-svn: 248573
2015-09-25 15:34:03 +00:00
d13d9606fb
Inline function into only use.
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llvm-svn: 248572
2015-09-25 15:08:44 +00:00
b558b79c88
[ELF2] Make buildbot happy again.
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llvm-svn: 248560
2015-09-25 04:22:13 +00:00
85121bbf24
[ELF2] Use static non-member function when it suffices.
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Pointed out by Rui Ueyama.
llvm-svn: 248559
2015-09-25 03:56:11 +00:00
3f4ec66624
ELF2: Use lambdas instead of named functions.
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They are short and used only once, so writing them where they are used
is better.
llvm-svn: 248558
2015-09-25 03:48:25 +00:00
4c4993bba6
Remove dead code.
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llvm-svn: 248557
2015-09-25 03:38:56 +00:00
aa7c533ec3
[ELF2] Fix binaries so they actually run on FreeBSD.
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Since FreeBSD 4.1, the kernel expects binaries to be marked with
ELFOSABI_FREEBSD in the ELF header to exec() them. LLD unconditionally
sets OSABI to ELF_OSABINONE, and everything linked with it won't run
on FreeBSD (unless explicitly rebranded).
Example:
% ./aarch64-hello
ELF binary type "0" not known.
zsh: exec format error: ./aarch64-hello
FreeBSD could be modified to accept ELF_OSABINONE, but that would break all
existing binaries, so the kernel needs to support both ABINONE and ABIFREEBSD.
I plan to push this change in FreeBSD one day, which, unfortunately, is
not today. This code patches lld so it sets the header field correctly.
For completeness, the rationale of this change is explained in the FreeBSD
commit message, and it's apparently to pleasee binutils maintainers at the time.
https://svnweb.freebsd.org/base?view=revision&revision=59342
Differential Revision: http://reviews.llvm.org/D13140
llvm-svn: 248554
2015-09-25 01:59:13 +00:00
77456efcb1
[CMake] Move LLD to the new style for symlink generation, and make the links list overridable.
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Reviewers: lhames, rafael
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13136
llvm-svn: 248544
2015-09-24 21:53:18 +00:00
c28a08b8d2
COFF: Remove duplicate parameter from hash value calculation.
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llvm-svn: 248526
2015-09-24 19:00:42 +00:00
1392d8b5fe
Fix memory leak in FileArchive::find().
...
Patch from George Rimar!
llvm-svn: 248525
2015-09-24 18:59:26 +00:00
d5b5ab7638
[ELF2] Output of all unknown arguments instead of only one.
...
Patch from George Rimar!
llvm-svn: 248524
2015-09-24 18:55:33 +00:00
bf37cdec28
[ELF2] Remove ignored options handling.
...
This was prematurely committed (and I take the blame for that).
Ideally, we want to support only ignored options that are really used
by somebody. Some of the options listed are not even supported by gold
(but only by ld.bfd), which says a lot about their "real-world" usefulness.
llvm-svn: 248503
2015-09-24 15:12:34 +00:00
e1901cc33d
Simplify memory management by having ELFData contain a ELFObj.
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llvm-svn: 248502
2015-09-24 15:11:50 +00:00
d75d3b94fd
[ELF2] Add support for -discard-none.
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Differential Revision: http://reviews.llvm.org/D13083
llvm-svn: 248499
2015-09-24 15:08:23 +00:00
e0f09fac78
Add a test covering ELFFile's constructor failing.
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llvm-svn: 248498
2015-09-24 14:55:25 +00:00
Simon Atanasyan