1bd885aba4
ELF: Also record the type of undefined symbols.
...
Tested with a weak undefined. Testing with a plain undefined will have to wait
for support for -shared.
llvm-svn: 245069
2015-08-14 16:46:28 +00:00
bd481b8f89
Fix the build with gcc.
...
llvm-svn: 245060
2015-08-14 15:20:34 +00:00
c44d17ad45
Add the type of the symbols to the symbol table.
...
For now only defined symbols are covered. I will add undefined ones in the
next patch.
llvm-svn: 245057
2015-08-14 15:10:49 +00:00
457c940835
Delete dead code.
...
llvm-svn: 245056
2015-08-14 14:58:57 +00:00
4c3aa0f228
Delete unused forward declarations.
...
llvm-svn: 245055
2015-08-14 14:51:11 +00:00
3bf356ee9c
Remove unused default values.
...
llvm-svn: 245053
2015-08-14 14:38:44 +00:00
beee25e484
Make these headers as being c++.
...
llvm-svn: 245050
2015-08-14 14:12:54 +00:00
383c323d4d
ELF: Set the correct symbol binding.
...
llvm-svn: 245049
2015-08-14 13:52:36 +00:00
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
8050d32b13
ELF2: Rename a function to make it the same as the COFF's counterpart.
...
llvm-svn: 245030
2015-08-14 05:17:30 +00:00
526ff15546
COFF: Introduce flag /opt:lldlto=N for controlling LTO optimization level.
...
Differential Revision: http://reviews.llvm.org/D12024
llvm-svn: 245027
2015-08-14 04:47:07 +00:00
5c546a1437
COFF: In chunks, store the offset from the start of the output section. NFC.
...
This is more convenient than the offset from the start of the file as we
don't have to worry about it changing when we move the output section.
This is a port of r245008 from ELF.
llvm-svn: 245018
2015-08-14 03:30:59 +00:00
f763ca3c9c
ELF: Create a symbol table.
...
For now it is empty. I will add the symbols in a followup patch.
llvm-svn: 245008
2015-08-14 02:42:20 +00:00
83b0dc6392
ELF: Drop the Chunk base class.
...
With OutputSection being a virtual interface, each concrete OutputSection
handles only one type of chunk and we don't need a base Chunk class.
So for we have a class that handles input sections and one that handles
the string table, but this extends naturally for other outputs (symbol table,
merging of SHF_MERGE sections, etc.).
llvm-svn: 244972
2015-08-13 22:21:37 +00:00
ebd2108215
Make OutputSection virtual and use that for creating the string table.
...
We were creating the string table in a completely ad hoc way. Now the
string table is an output section and gets its output offset set just like
any other section.
This opens the way for other linker created sections like the symbol table.
llvm-svn: 244969
2015-08-13 22:14:37 +00:00
2db634d8f1
Correctly align output sections.
...
They don't need to be aligned to page boundaries. Only segments need that.
llvm-svn: 244942
2015-08-13 20:24:18 +00:00
0160a281c2
Record the alignment of the output sections.
...
llvm-svn: 244941
2015-08-13 20:13:39 +00:00
5d83ccd55b
Make getSectionName non virtual. NFC.
...
llvm-svn: 244939
2015-08-13 19:18:30 +00:00
ea133eaa39
Delete dead code.
...
llvm-svn: 244938
2015-08-13 19:00:23 +00:00
a175eb6ca6
Template OutputSection only over Is64Bit.
...
This is a bit more c++ code, but:
* It is less machine code: lld's text is 44688 bytes smaller.
* It should be a bit more efficient in the non native endian case.
* It should be a bit more efficient on architectures with slow unaligned access.
llvm-svn: 244934
2015-08-13 18:37:23 +00:00
184d94e009
Define trivial methods inline. NFC.
...
llvm-svn: 244930
2015-08-13 18:25:47 +00:00
64e888ba5f
Set the file offset of zero sized sections.
...
There is no reason not to do it and this matches what gold and bfd ld do.
llvm-svn: 244929
2015-08-13 18:23:43 +00:00
29e8d343e4
Rename addSectionChunk to addChunk now that it can handle any Chunk.
...
llvm-svn: 244919
2015-08-13 17:35:13 +00:00
375a508234
Pass the type and flags to the OutputSection constructor. NFC.
...
This will allow further cleanups.
llvm-svn: 244918
2015-08-13 17:32:30 +00:00
a7471795ae
Take name, type and flags in consideration when concatenating sections.
...
This is mandated by the ELF spec.
llvm-svn: 244911
2015-08-13 17:04:50 +00:00
674b5d570f
Store the offset in the output section, no in the file.
...
That is the value that is stable as the we layout the output sections.
llvm-svn: 244904
2015-08-13 15:54:36 +00:00
ef1ac01c2e
Don't give an address to sections that are not allocated.
...
llvm-svn: 244900
2015-08-13 15:31:17 +00:00
abad6186c3
Place SHF_ALLOC sections first in the output.
...
Having them in the middle of the file complicates the creation of segments.
llvm-svn: 244898
2015-08-13 15:23:46 +00:00
25f51850a4
Delete dead code.
...
llvm-svn: 244896
2015-08-13 14:48:49 +00:00
cde251370a
Include non-alloca sections in the link.
...
llvm-svn: 244895
2015-08-13 14:45:44 +00:00
f0461ba985
Update for llvm api change.
...
llvm-svn: 244856
2015-08-13 01:07:08 +00:00
bdc8f2fb83
Update for llvm api change.
...
llvm-svn: 244849
2015-08-13 00:31:46 +00:00
40dfae36fc
This test needs lib.exe.
...
llvm-svn: 244844
2015-08-13 00:03:47 +00:00
a3191ef66b
Wdeprecated: Remove unnecessary user-defined dtor that was getting in the way of the default ops (copy construction, assignment, etc)
...
llvm-svn: 244836
2015-08-12 23:26:58 +00:00
372889a8e6
Fix an use of uninitialized.
...
Should fix some tests on windows.
llvm-svn: 244834
2015-08-12 23:25:42 +00:00
90512d5440
[ELF] Remove TargetLayout::getCustomSegments methods
...
llvm-svn: 244747
2015-08-12 13:27:27 +00:00
0c8beb1c95
[LinkerScript] Process program header in PHDRS command
...
Add PT_PHDR segment depending on its availability in linker script's
PHDRS command, fallback if no linker script is given.
Handle FILEHDR, PHDRS and FLAGS attributes of program header.
Differential Revision: http://reviews.llvm.org/D11589
llvm-svn: 244743
2015-08-12 12:31:35 +00:00
91009b3856
Fix the alignment of the section headers.
...
Thanks a lot to Rui for noticing it.
llvm-svn: 244711
2015-08-12 01:45:28 +00:00
6b83b90b6a
ELF: Create a string table.
...
For now only the sections are in it, but it already makes the output easier
to read and test.
llvm-svn: 244702
2015-08-12 00:00:24 +00:00
4f89fdad9f
ELF2: Make Defined{Regular,Weak} ctors look the same as other SymbolBody ctors.
...
llvm-svn: 244701
2015-08-11 23:37:25 +00:00
021834046f
Template ELF's OutputSection.
...
This removes what I think is the last hard coded ELF64 structure.
llvm-svn: 244700
2015-08-11 23:34:29 +00:00
52a0f1e8c6
Move more code that is local to Writer.cpp to an anonymous namespace.
...
llvm-svn: 244697
2015-08-11 23:22:24 +00:00
5211c2a1a0
Delete dead code.
...
llvm-svn: 244696
2015-08-11 23:19:06 +00:00
98f6bd09e4
Be a bit more consistent about using uintX_t for offsets and sizes. NFC.
...
llvm-svn: 244694
2015-08-11 23:14:13 +00:00
fa071e13aa
COFF: Align sections to 512-byte boundaries on disk.
...
Sections must start at page boundaries in memory, but they
can be aligned to sector boundaries (512-bytes) on disk.
We aligned them to 4096-byte boundaries even on disk, so we
wasted disk space a bit.
llvm-svn: 244691
2015-08-11 23:09:00 +00:00
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
f7b85e0ce2
Fix mismatched sign comparison
...
llvm-svn: 244653
2015-08-11 20:06:51 +00:00
76e24ea955
Add support for weak undefined symbols.
...
llvm-svn: 244640
2015-08-11 17:57:05 +00:00
791e9f9c59
Remove unused templating.
...
llvm-svn: 244639
2015-08-11 17:51:57 +00:00
b13df6582a
Add support for weak symbols.
...
llvm-svn: 244636
2015-08-11 17:33:02 +00:00
Rafael Espindola