Commit Graph

707 Commits

Author SHA1 Message Date
Rui Ueyama b916e84672 Fix typo
llvm-svn: 192401
2013-10-10 22:29:48 +00:00
Shankar Easwaran 26594caec4 [ELF] Initial design to handle Linker scripts for ELF.
llvm-svn: 192369
2013-10-10 17:27:49 +00:00
Rui Ueyama 9f3a77a9f4 [PECOFF] Add files appear in .drectve to input graph
-- so that command line options to specify new input files, such as
/defaultlib:foo, is handled properly. Such options were ignored before
this patch.

llvm-svn: 192342
2013-10-10 05:39:43 +00:00
Rui Ueyama 85cc66d85e Do not process .objtxt file twice.
A file with .objtxt extension is parsed in readFile(), but because we did not
propagate that information to the calling side, calling side would try to parse
it again. This patch will fix the issue by adding an extra parameter to
readFile().

llvm-svn: 192311
2013-10-09 18:14:23 +00:00
Shankar Easwaran 95d4e61411 [ELF] Change MaxAlignment to 2.
llvm-svn: 192310
2013-10-09 18:12:31 +00:00
Shankar Easwaran 49408ece47 [Layout] Dont set ordinals to Files by default.
This change removes code in various places which was setting the File Ordinals.
This is because the file ordinals are assigned by the way files are resolved.

There was no other way than making the getNextFileAndOrdinal be set const and
change the _nextOrdinal to mutable.

There are so many places in code, that you would need to cleanup to make
LinkingContext non-const!

llvm-svn: 192280
2013-10-09 07:32:47 +00:00
Shankar Easwaran 1d3c48f1fc [Layout] Assign ordinals in Resolution order.
llvm-svn: 192277
2013-10-09 05:23:23 +00:00
Shankar Easwaran 03f7763d21 [inputGraph] Associate Resolve state with appropriate nodes
This associates resolveState to FileNodes. The control node derive
their resolution state from the inputElements that are contained in
it.

This makes --start-group/--end-group to work with ELF linking.

llvm-svn: 192269
2013-10-09 03:40:29 +00:00
Rui Ueyama c6015f6476 Update error classes from all lowercase to camel case.
llvm-svn: 192261
2013-10-09 00:57:22 +00:00
Rui Ueyama 1c1b443997 Move a local variable into while-loop scope.
llvm-svn: 192260
2013-10-09 00:42:57 +00:00
Rui Ueyama 74cc8e1e80 Fix flaky elf/X86_64/dynlib-search.test.
Output to llvm::err() is not guaranteed to be thread-safe, so it needs
to be guarded with a lock.

Differential Revision: http://llvm-reviews.chandlerc.com/D1862

llvm-svn: 192250
2013-10-08 23:01:52 +00:00
Rui Ueyama f96416d750 Use size_t for array index.
llvm-svn: 192249
2013-10-08 23:01:49 +00:00
Shankar Easwaran 7f1146c494 [LinkingContext] make LinkingContext non-const
llvm-svn: 192183
2013-10-08 15:43:48 +00:00
Rui Ueyama 9a13ac9a40 Move duplicate code in InputGraphs to the parent class.
llvm-svn: 192170
2013-10-08 05:52:01 +00:00
Rui Ueyama 492048bf60 Rename GnuLd's path() too.
llvm-svn: 192169
2013-10-08 05:23:03 +00:00
Rui Ueyama 53f31af7ea Rename path() -> getPath().
Differential Revision: http://llvm-reviews.chandlerc.com/D1853

llvm-svn: 192167
2013-10-08 04:57:08 +00:00
Rui Ueyama 8b8e5216af Make bitmask an unsigned type.
llvm-svn: 192163
2013-10-08 03:59:45 +00:00
Nick Kledzik 369ffd1c55 fix typos
llvm-svn: 192154
2013-10-08 02:07:19 +00:00
Rui Ueyama 094546836b Add comments. Early return.
llvm-svn: 192149
2013-10-08 00:43:53 +00:00
Rui Ueyama f8c54842d6 Convert error code structs to scoped enums.
Summary:
The original code with enum "_" is intended to emulate scoped enums.
Now we have real scoped enums, so use it.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1852

llvm-svn: 192148
2013-10-08 00:43:50 +00:00
Nick Kledzik 30332b19d3 Supoort mach-o encoded in yaml.
This is the first step in how I plan to get mach-o object files support into 
lld. We need to be able to test the mach-o Reader and Write on systems without 
a mach-o tools. Therefore, we want to support a textual way (YAML) to represent 
mach-o files.

MachONormalizedFile.h defines an in-memory abstraction of the content of mach-o  
files. The in-memory data structures are always native endianess and always
use 64-bit sizes. That internal data structure can then be converted to or
from three different formats: 1) yaml (text) encoded mach-o, 2) binary mach-o
files, 3) lld Atoms.

This patch defines the internal model and uses YAML I/O to implement the 
conversion to and from the model to yaml. The next patch will implement
the conversion from normalized to binary mach-o.

This patch includes unit tests to validate the yaml conversion APIs.

llvm-svn: 192147
2013-10-08 00:43:34 +00:00
Shankar Easwaran a96f3a3da4 [lld][InputGraph] Change the Resolver to use inputGraph
Changes :-

a) Functionality in InputGraph to insert Input elements at any position
b) Functionality in the Resolver to use nextFile
c) Move the functionality of assigning file ordinals to InputGraph
d) Changes all inputs to MemoryBuffers
e) Remove LinkerInput, InputFiles, ReaderArchive

llvm-svn: 192081
2013-10-07 02:47:09 +00:00
Michael J. Spencer d419dbcc48 [ELF] Fix uninitalized value.
llvm-svn: 191924
2013-10-03 19:25:34 +00:00
Michael J. Spencer cf80ed03bc [Core] Fix unstable sort for unordered atoms.
llvm-svn: 191867
2013-10-03 01:26:48 +00:00
Michael J. Spencer c80f88a94e [Core] Fix heap overflow in LayoutPass.
Found this with asan. Code assumes that find doesn't return end, thus if
both atoms didn't have followon roots it would still compare their positions.

llvm-svn: 191865
2013-10-02 23:21:07 +00:00
Nick Kledzik 0932c004a9 [mach-o] Add support for -mllvm to darwin driver
llvm-svn: 191594
2013-09-28 00:29:33 +00:00
Rui Ueyama e9d2396c88 Add a comment to ReaderCOFF::parseFile.
llvm-svn: 191583
2013-09-27 22:55:25 +00:00
Nick Kledzik 473933b89f [mach-o] switch to use llvm::MachO:: constants
Stop using some locally defined mach-o constants.

llvm-svn: 191581
2013-09-27 22:50:00 +00:00
Michael J. Spencer 102f82a74e [ELF] Handle copy relocations for PC32.
This will eventually need to be refactored to better handle COPY relocations,
as other relocations can also generate them. I'm not yet sure the exact
circumstances in which they are needed yet.

llvm-svn: 191567
2013-09-27 21:30:27 +00:00
Michael J. Spencer 3b36473007 [ELF] Mark STT_GNU_IFUNC symbols as code.
llvm-svn: 191566
2013-09-27 21:30:04 +00:00
Rui Ueyama 3c6ee599a2 [PECOFF] Enable input file logging if /debug is given.
llvm-svn: 191469
2013-09-26 22:46:04 +00:00
Michael J. Spencer 32a3f9ee29 [ELF] Add COPY relocations.
llvm-svn: 191467
2013-09-26 22:09:16 +00:00
Michael J. Spencer 4355bb9d22 [Core] Add type and size to SharedLibraryAtom.
llvm-svn: 191466
2013-09-26 22:08:43 +00:00
Michael J. Spencer 4d628347b1 [ELF] Fix use after free.
llvm-svn: 191403
2013-09-25 22:12:14 +00:00
Rui Ueyama 8db1eddc07 Make Driver::link and LinkingContext::validate return true on success.
This patch inverts the return value of these functions, so that they return
"true" on success and "false" on failure. The meaning of boolean return value
was mixed in LLD; for example, InputGraph::validate() returns true on success.
With this patch they'll become consistent.

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1748

llvm-svn: 191341
2013-09-24 23:26:34 +00:00
Rui Ueyama 27c88dab08 [PECOFF] Fix /? option and add a test for the flag.
llvm-svn: 191320
2013-09-24 17:59:30 +00:00
Rui Ueyama a32150c3c7 [PECOFF] Ignore /verbose and /wx (warnings as errors) options.
llvm-svn: 191317
2013-09-24 17:44:39 +00:00
Rui Ueyama 98f269f9d1 [PECOFF] Add /swaprun:{cd,net} options.
llvm-svn: 191276
2013-09-24 04:20:37 +00:00
Rui Ueyama 0e08d7757b [PECOFF] Ignore /pdbaltpath option.
/PDBALTPATH:<path> is an option to embed a different path for the PDB file to
the binary than the actual PDB file location. Because we don't support PDB
file, we'll just ignore the option for now.

llvm-svn: 191273
2013-09-24 04:04:00 +00:00
Rui Ueyama ad54b049ef Expand auto to improve code readability.
llvm-svn: 191272
2013-09-24 03:44:19 +00:00
Rui Ueyama b7297d695e [PECOFF] Use macro for the repeating pattern of the Driver code.
llvm-svn: 191271
2013-09-24 03:37:56 +00:00
Rui Ueyama a7bcad4613 [PECOFF] Remove redundant comments.
llvm-svn: 191270
2013-09-24 03:37:53 +00:00
Rui Ueyama c583d17a57 [PECOFF] Ignore /pdb option.
llvm-svn: 191269
2013-09-24 03:37:51 +00:00
Rui Ueyama 5ee413eda8 [PECOFF] Ignore /debug option.
llvm-svn: 191268
2013-09-24 03:37:47 +00:00
Rui Ueyama f062c84aac [PECOFF] Add /nodefaultlib command line option.
llvm-svn: 191254
2013-09-24 00:16:27 +00:00
Rui Ueyama 456740c740 [PECOFF] Do not allow space to separate command line option and its value.
We used to support both Windows and Unix style command line options. In Windows
style, an option and its value are separated by ":" (colon). In Unix, separator
is a space. Accepting both styles were convenient, but we can no longer allow
Unix style because I found that can be ambiguous.

For example, /nodefaultlib option takes an optional argument. In Windows style
it's going to be something like "/nodefaultlib:foo". There's no ambiguity what
"foo" means. However, if the option is "/nodefaultlib foo", "foo" can be
interpreted either an optional argument for "/nodefaultlib" or an input file
"foo.obj". We should just stop accepting the non-standard command line style.

llvm-svn: 191247
2013-09-23 23:51:31 +00:00
Rui Ueyama 5c59ab7f3d [PECOFF] Ignore /delay and /delayload options.
These options are to enable DLL delay loading. If enabled, DLL is loaded
at run time by a helper routine when a function in the DLL is actually called
for the first time, instead of making the Windows loader to load all DLLs at
startup time. This should shorten startup delay if an executable have many
imported symbols.

The linker needs to create a "delayed import table" and link delayimp.lib in
which helper functions are defined to support the feature.

For now, we just ignore the options, so that the linker does not complain when
it sees these options. We want to support them in the future.

llvm-svn: 191232
2013-09-23 22:41:46 +00:00
Rui Ueyama c0a6d43c92 [PECOFF] Add /allowisolation command line option.
llvm-svn: 191227
2013-09-23 21:22:01 +00:00
Rui Ueyama 6907b3df70 [PECOFF] Add /allowbind command line option.
llvm-svn: 191224
2013-09-23 20:44:20 +00:00
Rui Ueyama 2721aa4065 [PECOFF] Simplify WinLinkOptions.td.
llvm-svn: 191223
2013-09-23 20:36:39 +00:00