Commit Graph

34 Commits

Author SHA1 Message Date
Rui Ueyama ea6c8e9c1f Unittest: Do s/_context/_ctx/g.
llvm-svn: 228750
2015-02-10 21:28:52 +00:00
Rui Ueyama 2050b61451 GNU: Add --no-export-dynamic command line option.
llvm-svn: 228749
2015-02-10 21:27:31 +00:00
Rui Ueyama 4c30cb3d2f Use override rather than virtual.
llvm-svn: 228723
2015-02-10 18:59:37 +00:00
Rui Ueyama 375c5e2353 GNU: Use StringRef::empty instead of a boolean flag.
This local variable name did not follow the style guide,
and it is not actually needed.

llvm-svn: 228722
2015-02-10 18:55:39 +00:00
Shankar Easwaran 2ba4f5d9e3 [Cleanup] Remove member functions added to support nostdlib
No change in functionality.

llvm-svn: 228379
2015-02-06 05:01:38 +00:00
Shankar Easwaran e315edd747 [ELF] Fix -nostdlib option.
Only search library directories explicitly specified
on the command line. Library directories specified in linker
scripts (including linker scripts specified on the command
line) are ignored.

llvm-svn: 228375
2015-02-06 04:15:00 +00:00
Rui Ueyama 2a96704b33 ELF: Support INPUT linker script directive
INPUT directive is a variant of GROUP in the sense that that specifies
a list of input files. The only difference is whether the entire file
list is wrapped with a --start-group/--end-group or not.

http://reviews.llvm.org/D7390

llvm-svn: 228060
2015-02-03 23:00:19 +00:00
Rui Ueyama a6d38a326a ELF: Improve linker script unit tests.
This patch is to enable to write unit tests for linker script with
less boilerplate code.

llvm-svn: 227902
2015-02-03 00:42:36 +00:00
Davide Italiano 104949df73 [ELF] Implement action for OUTPUT linker script command
Reviewed by:	ruiu, shankarke

llvm-svn: 227787
2015-02-02 06:28:12 +00:00
Davide Italiano 1ecdf4ad30 [ELF] Implement semantic action for ENTRY linker script command.
Reviewed by:	shankarke, ruiu

llvm-svn: 227708
2015-02-01 03:27:25 +00:00
Rafael Auler 8251d741f4 Implement semantic action for SEARCH_DIR linker script command
This is needed, among others by the FreeBSD kernel linker script.

Patch by Davide Italiano!

Reviewers: ruiu, rafaelauler

Differential Revision: http://reviews.llvm.org/D7220

llvm-svn: 227694
2015-01-31 22:42:19 +00:00
Rui Ueyama 48eec8a90d ELF: add a unit test for --as-needed.
llvm-svn: 227367
2015-01-28 21:01:24 +00:00
Rui Ueyama 0b55151d3e Add a unit test for LinkerScript.
llvm-svn: 227341
2015-01-28 18:38:50 +00:00
Rui Ueyama cf14b63116 [ELF] Do not error on non-existent file in the driver.
This change makes it easy to write unit tests for the GNU driver.
No more "empty group" hack is needed. No change in functionality.

llvm-svn: 226150
2015-01-15 08:49:19 +00:00
Simon Atanasyan 04da06ccee [ELF] Make -init/-fini options compatible with the gnu linker
The LLD linker searches initializer and finalizer function names
and emits DT_INIT/DT_FINI dynamic table tags to point to these symbols.
The -init/-fini command line options override initializer ("_init") and
finalizer ("_fini") function names used by default.

Now the -init/-fini options do not affect .init_array/.fini_array
sections. The corresponding code has been removed.

Differential Revision: http://reviews.llvm.org/D6578

llvm-svn: 223917
2014-12-10 05:38:46 +00:00
Shankar Easwaran 2b67fca033 Sort include files according to convention.
llvm-svn: 220131
2014-10-18 05:33:55 +00:00
Rui Ueyama 327db80dd5 [ELF] Support --defsym=<symbol>=<symbol>.
Currently LLD supports --defsym only in the form of
--defsym=<symbol>=<integer>, where the integer is interpreted as the
absolute address of the symbol. This patch extends it to allow other
symbol name to be given as an RHS value. If a RHS value is a symbol
name, the LHS symbol will be defined as an alias for the RHS symbol.

Internally, a LHS symbol is represented as a zero-size defined atom
who has an LayoutAfter reference to an undefined atom, whose name is
the RHS value. Everything else is already implemented -- Resolver
will resolve the undefined symbol, and the layout pass will layout
the two atoms at the same location. Looks like it's working fine.

Note that GNU LD supports --defsym=<symbol>=<symbol>+<addend>. That
feature is out of scope of this patch.

Differential Revision: http://reviews.llvm.org/D3332

llvm-svn: 206417
2014-04-16 20:58:57 +00:00
Rui Ueyama feab78785b [ELF] Unit tests for -o and --noinhibit-exec.
llvm-svn: 205735
2014-04-07 20:52:48 +00:00
Rui Ueyama 595026e071 [ELF] Accept "-rpath=<foo>" as well as "-rpath <foo>".
llvm-svn: 205694
2014-04-06 21:23:24 +00:00
Rui Ueyama c141c8c59a [ELF] Fix driver bug.
GNU LD-comptaible driver wrongly requires a space after '=' for a few
options such as "-init=<symbol>" or "-entry=<symbol>". This patch is
to fix that bug and add a few tests for it.

llvm-svn: 205693
2014-04-06 21:15:05 +00:00
Rui Ueyama 7088e3470c [ELF] Add a test for -rpath.
llvm-svn: 205663
2014-04-05 02:15:23 +00:00
Rui Ueyama ac0f7ca3a8 [ELF] Fix --soname option.
Currently LLD accepts only "-soname <string>", but all the following
options are actually valid.

  --soname=foo
  --soname foo
  -soname=foo
  -soname foo
  -h foo

This patch fixes that issue.

llvm-svn: 205662
2014-04-05 02:07:04 +00:00
Rui Ueyama e36fbea175 [ELF] Diagnose malformed --dynsym option.
llvm-svn: 205654
2014-04-04 22:36:30 +00:00
Rui Ueyama 3907f2a802 [ELF] Support --defsym option to define an absolute symbol.
This patch is to support --defsym option for ELF file format/GNU-compatible
driver. Currently it takes a symbol name followed by '=' and a number. If such
option is given, the driver sets up an absolute symbol with the specified
address. You can specify multiple --defsym options to define multiple symbols.

GNU LD's --defsym provides many more features. For example, it allows users to
specify another symbol name instead of a number to define a symbol alias, or it
even allows a symbol plus an offset (e.g. --defsym=foo+3) to define symbol-
relative alias. This patch does not support that, but will be supported in
subsequent patches.

Differential Revision: http://llvm-reviews.chandlerc.com/D3208

llvm-svn: 205029
2014-03-28 19:02:06 +00:00
Rui Ueyama 9024c36f5a Make anonymous namespace as small as possible.
llvm-svn: 204982
2014-03-27 23:34:32 +00:00
Rui Ueyama 16e543bc02 Add "override" and remove "virtual" where appropriate.
For the record, I used clang-modernize to add "override" and perl to remove
"virtual".

llvm-svn: 203164
2014-03-06 21:14:04 +00:00
Shankar Easwaran d87a021c79 [InputGraph][Gnu] Add LinkerScript support.
This adds LinkerScript support by creating a type Script which is of type
FileNode in the InputGraph. Once the LinkerScript Parser converts the
LinkerScript into a sequence of command, the commands are handled by the
equivalent LinkerScript node for the current Flavor/Target. For ELF, a
ELFGNULdScript gets created which converts the commands to ELF nodes and ELF
control nodes(ELFGroup for handling Group nodes).

Since the Inputfile type has to be determined in the Driver, the Driver needs
to determine the complete path of the file that needs to be processed by the
Linker. Due to this, few tests have been removed since the Driver uses paths
that doesnot exist.

llvm-svn: 195583
2013-11-24 23:12:36 +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
Shankar Easwaran 7915ff34b7 [lld][LinkingContext][ELF] Allow different output file types.
This adds an option --output-filetype that can be set to either
YAML/Native(case insensitive). The linker would create the outputs
associated with the type specified by the user.

Changes all the tests to use the new option.

llvm-svn: 191183
2013-09-23 04:24:15 +00:00
Rui Ueyama 0ca149fce9 Rename TargetInfo -> LinkingContext.
Also change some local variable names: "ti" -> "context" and
"_targetInfo" -> "_context".

Differential Revision: http://llvm-reviews.chandlerc.com/D1301

llvm-svn: 187823
2013-08-06 22:31:59 +00:00
Nick Kledzik 2a709eaa83 Fix Driver tests to check return value of parse(), simplify subclassing, and remove unneeded instance variables
llvm-svn: 186440
2013-07-16 18:45:57 +00:00
Rui Ueyama cb1c8cce46 Fix broken unittest for GnuLDDriver.
llvm-svn: 186427
2013-07-16 17:17:01 +00:00
Rui Ueyama d752c9cc89 Fix typo in file header.
llvm-svn: 182985
2013-05-31 04:46:44 +00:00
Rui Ueyama 7eb1d49a58 [Driver] Add unit tests for GnuLdDriver.
llvm-svn: 182980
2013-05-31 02:12:34 +00:00