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75 Commits

Author SHA1 Message Date
Rafael Espindola
61e0c74936 If present, use gold's support for getting a file view. This prevents having 
to map the file both in the linker and in the plugin.

llvm-svn: 129109
 2011-04-07 21:11:00 +00:00
Rafael Espindola
1592f3ae24 Add a lto_codegen_compile_to_file to avoid producing a file, reading it to 
memory and writing it back to disk.

llvm-svn: 128108
 2011-03-22 20:57:13 +00:00
Rafael Espindola
8dab9a762b Add support in the LTO library for loading an object from the middle 
of an file.

llvm-svn: 127781
 2011-03-17 00:36:11 +00:00
Oscar Fuentes
548931d606 Force re-linking of LLVMgold.so when its exports file changes. 
llvm-svn: 127473
 2011-03-11 18:27:13 +00:00
Oscar Fuentes
d83646bbfd Fix processing of gold.exports. 
llvm-svn: 127471
 2011-03-11 18:07:46 +00:00
Oscar Fuentes
57a2625738 Add LTO and gold plugin to the CMake build. Linux-only, support for 
other systems pending.

PR9456.

llvm-svn: 127466
 2011-03-11 15:44:24 +00:00
Rafael Espindola
53fdf0bfc1 Gold now rescans archives as needed, so the pass-through options are not 
necessary anymore.

llvm-svn: 126580
 2011-02-27 20:30:22 +00:00
Rafael Espindola
744cde8b39 bfd was fixed, remove the work around. 
llvm-svn: 126579
 2011-02-27 20:15:37 +00:00
Rafael Espindola
13bfff7d40 LTO uses MC now. 
llvm-svn: 126546
 2011-02-26 16:44:13 +00:00
Rafael Espindola
83ad96cc73 Dispose modules early and only create codegen when the plugin is being 
used by the linker and not by nm or ar.

llvm-svn: 126089
 2011-02-20 18:28:29 +00:00
Rafael Espindola
f2fd1bf3d8 Add modules to codegen as soon as possible. This reduces the link time 
of libxul from 12m31.084s to 7m1.359s.

llvm-svn: 126052
 2011-02-19 21:49:57 +00:00
Rafael Espindola
3c40b1fab0 Add a debug obj-path option to make it easy to keep the .o produce by LTO. 
llvm-svn: 125663
 2011-02-16 11:19:44 +00:00
Rafael Espindola
3c32af5834 Switch llvm to using comdats. For now always use groups with a single 
section.

llvm-svn: 125526
 2011-02-14 22:23:49 +00:00
Rafael Espindola
43f9672afa Don't open the file again in the gold plugin. To be able to do this, update 
MemoryBuffer::getOpenFile to not close the file descriptor.

llvm-svn: 125128
 2011-02-08 22:40:47 +00:00
Michael J. Spencer
2bf08ad59d gold: MinGW fix. 
llvm-svn: 123886
 2011-01-20 05:43:16 +00:00
Charles Davis
e7f14dfdb8 Now to chant the magical incantation that will exorcise the System library 
from LLVM forever:

grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g'

llvm-svn: 120314
 2010-11-29 19:44:50 +00:00
Michael J. Spencer
4a63404543 I swear I did a make clean and make before committing all this... 
llvm-svn: 120304
 2010-11-29 18:47:54 +00:00
Dan Gohman
6645ce3f75 Move tool_output_file into its own file. 
llvm-svn: 115973
 2010-10-07 20:32:40 +00:00
NAKAMURA Takumi
7857655635 Don't build redundant libLLVMgold.a. 
Building archive would be executed due to definition of BUILD_ARCHIVE,
even if BUILD_ARCHIVE = "0".

llvm-svn: 113578
 2010-09-10 06:26:57 +00:00
Nick Lewycky
7d3f15bab3 Fix compile errors. 
llvm-svn: 112808
 2010-09-02 05:44:31 +00:00
Dan Gohman
d8be4c4aca Convert tools to use tool_output_file, and introduce error 
checking to places which previously lacked it.

llvm-svn: 111651
 2010-08-20 16:59:15 +00:00
Rafael Espindola
f345661269 Make it possible to set the cpu used for codegen. 
llvm-svn: 110759
 2010-08-11 00:15:13 +00:00
Rafael Espindola
c61143ae75 Make it possible to set the flags passed to the assembler. 
Nick, please review.

llvm-svn: 110705
 2010-08-10 18:55:09 +00:00
Rafael Espindola
acfdd67ec8 Fix silly bug. 
llvm-svn: 110684
 2010-08-10 16:32:15 +00:00
Rafael Espindola
fd90a58cd3 Make it possible to set the target triple and expose that with an option in the 
gold plugin.

llvm-svn: 110604
 2010-08-09 21:09:46 +00:00
Rafael Espindola
c3b766cc93 s/libLLVMgold/LLVMgold/g 
llvm-svn: 110552
 2010-08-08 21:14:26 +00:00
Duncan Sands
d0286618b5 Remove variables that are written by not read. 
llvm-svn: 107126
 2010-06-29 11:07:47 +00:00
Rafael Espindola
ea22615ccd Add an extra-library-path option to the plugin. This is used to support 
having a library both as bitcode and native code. We want to use the
bitcode first, but if codegen produces new undefined references we have to use
the native code to satisfy those references.

Gold has no notion of bitcode and native search directories, so instead it has
an API where the plugin can instruct it to look for the libraries it is passing
to it. This patch uses that API.

llvm-svn: 106674
 2010-06-23 20:20:59 +00:00
Rafael Espindola
705c2bd4c3 add_input_file and add_input_library now take const arguments, remove the 
const_cast.

llvm-svn: 106410
 2010-06-21 02:23:12 +00:00
Rafael Espindola
d7bfa3a0f7 Add a pass-through option to the plugin. The use case for this option is to 
ask the linker to take another look into some library or object. The case when
one might want to do this is when codegen introduces a new undefined reference.
The canonical example is libgcc.

llvm-svn: 106303
 2010-06-18 19:18:58 +00:00
Rafael Espindola
23f533848f Don't produce output only if *all* files are unused. 
llvm-svn: 105962
 2010-06-14 21:20:52 +00:00
Nick Lewycky
ff1e3db00e Plug a leak in the non-error case by removing one level of indirection. 
llvm-svn: 105556
 2010-06-07 21:42:19 +00:00
Rafael Espindola
b93be14fa0 Misc cleanups to the gold plugin. 
llvm-svn: 105534
 2010-06-07 16:45:22 +00:00
Rafael Espindola
ee11d1e6a5 Add a emit-llvm option to the plugin and make the path argument to also-emit-llvm optional. 
llvm-svn: 105414
 2010-06-03 21:11:20 +00:00
Nick Lewycky
14c5598c42 Perfer !string.empty() over string != "". 
llvm-svn: 105397
 2010-06-03 17:13:23 +00:00
Nick Lewycky
04d3d4e46f Whitespace cleanup. 
llvm-svn: 105395
 2010-06-03 17:10:17 +00:00
Rafael Espindola
9d46e81a8b Don't preserve all symbols in a .so and instead trust gold to know what is 
needed. The result is that now we are able to drop unnecessary symbol from
shared libraries.

llvm-svn: 105389
 2010-06-03 14:45:44 +00:00
Rafael Espindola
aa7f3b0561 Avoid renaming loadable modules at install time. Now the gold plugin is named 
LLVMgold.so both in both the build and install directories.

llvm-svn: 103897
 2010-05-16 03:13:23 +00:00
Rafael Espindola
bc6fabbd3e Add an also-emit-llvm option to the gold plugin. 
llvm-svn: 103714
 2010-05-13 13:39:31 +00:00
Nick Lewycky
e96e382131 Revert r64616 which worked around http://gcc.gnu.org/PR42757 , we just didn't 
know it at the time.

llvm-svn: 101439
 2010-04-16 04:32:20 +00:00
Dan Gohman
499f38cfcb Create an exports file, so that the plugin only exports the onload symbol. 
llvm-svn: 101431
 2010-04-16 00:43:25 +00:00
Dan Gohman
792df0f4ca Make things static that don't need to be referenced from outside the file. 
llvm-svn: 101430
 2010-04-16 00:42:57 +00:00
Chris Lattner
5a57121631 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI. 
llvm-svn: 94378
 2010-01-24 20:43:08 +00:00
Chris Lattner
276811b58a Stop building RTTI information for *most* llvm libraries. Notable 
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
 2010-01-22 06:49:46 +00:00
Viktor Kutuzov
4da1a5215a Fix to pass options from Gold plugin to LTO codegen 
llvm-svn: 85419
 2009-10-28 18:55:55 +00:00
Duncan Sands
728eebe8e2 Include config.h in order to have HAVE_STDINT_H be defined. 
In the latest binutils the plugin-api.h needs this - without
it the LLVM gold plugin fails to compile.

llvm-svn: 84861
 2009-10-22 16:03:32 +00:00
Nick Lewycky
4c87d257a4 Fix Makefile to build correctly on Darwin. Patch by Sandeep Patel! 
llvm-svn: 83813
 2009-10-11 23:10:09 +00:00
Dan Gohman
53f0d68f87 Make LLVM command-line tools overwrite their output files without -f. 
This is conventional command-line tool behavior. -f now just means
"enable binary output on terminals".

Add a -f option to llvm-extract and llvm-link, for consistency.

Remove F_Force from raw_fd_ostream and enable overwriting and
truncating by default. Introduce an F_Excl flag to permit users to
enable a failure when the file already exists. This flag is
currently unused.

Update Makefiles and documentation accordingly.

llvm-svn: 79990
 2009-08-25 15:34:52 +00:00
Chris Lattner
f16d8ade4f Change raw_fd_ostream to take flags as an optional bitmask 
instead of as two bools.  Use this to add a F_Append flag
which has the obvious behavior.

Other unrelated changes conflated into this patch:

1. REmove EH stuff from llvm-dis and llvm-as, the try blocks
   are dead.
2. Simplify the filename inference code in llvm-as/llvm-dis,
   because raw_fd_ostream does the right thing with '-'.
3. Switch machine verifier to use raw_ostream instead of ostream
   (Which is the thing that needed append in the first place).

llvm-svn: 79807
 2009-08-23 02:51:22 +00:00
Dan Gohman
9ced780576 Add a Force option to raw_fd_ostream to specify whether opening 
an existing file is considered an error. Convert several tools
to use raw_fd_ostream instead of std::ostream, and to use this
new option instead of doing a manual check.

llvm-svn: 75801
 2009-07-15 17:29:42 +00:00