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
Rafael Espindola