a339e47689
libLTO has a bug in that it will keep every symbol if none is needed. We used
...
to hack around this in the gold plugin by deleting a module if no symbol was
needed. Unfortunately, the hack is wrong in the case of o module having no
visible symbols but still having side effects via static constructors.
The bug will have to be fixed in libLTO itself.
llvm-svn: 166745
2012-10-26 00:29:57 +00:00
9aa1fcce58
Use LTO_CODEGEN_PIC_MODEL_DYNAMIC for PIE. This requirest a git version of
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gold to work. Since the enum value LDPO_PIE has just been added to plugin-api.h,
use a numeric constant for now so that we don't require an unreleased
version of gold to build.
llvm-svn: 158402
2012-06-13 13:30:24 +00:00
9e5b178ecc
drop unneeded config.h includes
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llvm-svn: 147197
2011-12-22 23:04:07 +00:00
639222d090
use 64-bit types instead of off_t/size_t to avoid the issue when
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gold plugin is built with Large File Support (sizeof(off_t) == 64 on i686)
and the rest of LLVM is built w/o Large File Support
(sizeof(off_t) == 32 on i686) which corrupts the stack.
llvm-svn: 139873
2011-09-15 23:13:00 +00:00
5021af51d9
gold plugin: don't report error on non-bitcode (e.g. ELF) files.
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llvm-svn: 139544
2011-09-12 21:47:50 +00:00
d5f2d8c341
gold plugin: report errors occured in lto_module_create_from_*
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llvm-svn: 139340
2011-09-09 00:14:04 +00:00
1fcd0f1581
Don't try to dereference syms[0] on an empty vector. Reported by Todd Jackson
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and Jeffrey Bosboom!
llvm-svn: 136066
2011-07-26 08:40:36 +00:00
9aa54fef84
Remove an unused variable.
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llvm-svn: 130860
2011-05-04 19:13:01 +00:00
ece7c9c282
If present, use gold's support for getting a file view. This prevents having
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to map the file both in the linker and in the plugin.
llvm-svn: 129109
2011-04-07 21:11:00 +00:00
26b57ffa27
Add a lto_codegen_compile_to_file to avoid producing a file, reading it to
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memory and writing it back to disk.
llvm-svn: 128108
2011-03-22 20:57:13 +00:00
b39c7c7b17
Add support in the LTO library for loading an object from the middle
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of an file.
llvm-svn: 127781
2011-03-17 00:36:11 +00:00
7e5fe6ce1c
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
92c06ba158
bfd was fixed, remove the work around.
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llvm-svn: 126579
2011-02-27 20:15:37 +00:00
908d391bd2
LTO uses MC now.
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llvm-svn: 126546
2011-02-26 16:44:13 +00:00
9ef90d5b35
Dispose modules early and only create codegen when the plugin is being
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used by the linker and not by nm or ar.
llvm-svn: 126089
2011-02-20 18:28:29 +00:00
d4f34d840e
Add modules to codegen as soon as possible. This reduces the link time
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of libxul from 12m31.084s to 7m1.359s.
llvm-svn: 126052
2011-02-19 21:49:57 +00:00
6b6ed5d1f9
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
70d8015063
Switch llvm to using comdats. For now always use groups with a single
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section.
llvm-svn: 125526
2011-02-14 22:23:49 +00:00
56e41f7f0b
Don't open the file again in the gold plugin. To be able to do this, update
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MemoryBuffer::getOpenFile to not close the file descriptor.
llvm-svn: 125128
2011-02-08 22:40:47 +00:00
06f5223621
gold: MinGW fix.
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llvm-svn: 123886
2011-01-20 05:43:16 +00:00
ab425d8360
I swear I did a make clean and make before committing all this...
...
llvm-svn: 120304
2010-11-29 18:47:54 +00:00
0df7ea4c24
Move tool_output_file into its own file.
...
llvm-svn: 115973
2010-10-07 20:32:40 +00:00
3e19542ed3
Fix compile errors.
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llvm-svn: 112808
2010-09-02 05:44:31 +00:00
8525fe7155
Convert tools to use tool_output_file, and introduce error
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checking to places which previously lacked it.
llvm-svn: 111651
2010-08-20 16:59:15 +00:00
ccab1dddd1
Make it possible to set the cpu used for codegen.
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llvm-svn: 110759
2010-08-11 00:15:13 +00:00
0045646633
Make it possible to set the flags passed to the assembler.
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Nick, please review.
llvm-svn: 110705
2010-08-10 18:55:09 +00:00
148c3284ee
Fix silly bug.
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llvm-svn: 110684
2010-08-10 16:32:15 +00:00
4ef89f5200
Make it possible to set the target triple and expose that with an option in the
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gold plugin.
llvm-svn: 110604
2010-08-09 21:09:46 +00:00
b69a3e27df
Remove variables that are written by not read.
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llvm-svn: 107126
2010-06-29 11:07:47 +00:00
ef49815638
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
9d94ebf1b6
add_input_file and add_input_library now take const arguments, remove the
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const_cast.
llvm-svn: 106410
2010-06-21 02:23:12 +00:00
8297640062
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
77b6d01906
Don't produce output only if *all* files are unused.
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llvm-svn: 105962
2010-06-14 21:20:52 +00:00
4ecf2cc5ea
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
c4dca3aeb6
Misc cleanups to the gold plugin.
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llvm-svn: 105534
2010-06-07 16:45:22 +00:00
8fb957e5cb
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
ca4180c92a
Perfer !string.empty() over string != "".
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llvm-svn: 105397
2010-06-03 17:13:23 +00:00
0ac5e2205c
Whitespace cleanup.
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llvm-svn: 105395
2010-06-03 17:10:17 +00:00
00121827b2
Don't preserve all symbols in a .so and instead trust gold to know what is
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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
ba3398bb1a
Add an also-emit-llvm option to the gold plugin.
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llvm-svn: 103714
2010-05-13 13:39:31 +00:00
bb2ec7de9c
Revert r64616 which worked around http://gcc.gnu.org/PR42757 , we just didn't
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know it at the time.
llvm-svn: 101439
2010-04-16 04:32:20 +00:00
ebb4ae0912
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
fd7ddd9c69
Fix to pass options from Gold plugin to LTO codegen
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llvm-svn: 85419
2009-10-28 18:55:55 +00:00
f34a264c60
Include config.h in order to have HAVE_STDINT_H be defined.
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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
61a8796ddb
Make LLVM command-line tools overwrite their output files without -f.
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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
9e6f1f160a
Change raw_fd_ostream to take flags as an optional bitmask
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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
607818a2c1
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
1a93330ffa
Add a portable strerror*() wrapper, llvm::sys::StrError(). This includes the
...
Windows variant, strerror_s, but I couldn't test that.
I'll update configure and config.h.in in a subsequent patch.
llvm-svn: 74621
2009-07-01 18:11:20 +00:00
27f6cb18d1
Remove the gcc= option. llvm-gcc uses only as=
...
Look for as in the path. Doing it here instead
of llvm-gcc because llvm-gcc has nothing as
convenient as sys::Program::FindProgramByName.
llvm-svn: 73383
2009-06-15 10:14:18 +00:00
5503c31ff9
Add option for specifying the path to assembler, "as". This overrides the path
...
to gcc.
llvm-svn: 73008
2009-06-07 00:50:45 +00:00
a303097de0
Allow a user of libLTO to specify the full pathname of the gcc executable to
...
run when assembling.
Wire this up to the gold plugin. You can now pass --plugin-opt gcc=/foo/bar/gcc
and it will run that gcc instead of looking for it on the path.
llvm-svn: 70490
2009-04-30 15:24:09 +00:00
56548523f5
Add LTO_SYMBOL_DEFINITION_WEAKUNDEF, use that on the gold plugin.
...
llvm-svn: 69972
2009-04-24 16:55:21 +00:00
338d07e94e
Add an option to the gold plugin to make it emit a file with the public api
...
list that can in turn be passed to -internalize pass through
-internalize-public-api-file.
Pass gold -plugin-opt=generate-api-file to produce "apifile.txt" in the current
directory.
llvm-svn: 65295
2009-02-22 22:15:44 +00:00
6add6181c8
really fix style
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llvm-svn: 64923
2009-02-18 17:49:06 +00:00
e08484daf2
fix style
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llvm-svn: 64905
2009-02-18 08:30:15 +00:00
fabd0534fd
tools like nm and ar only need register_claim_file and add_symbols. Don't abort
...
if other hooks are missing.
llvm-svn: 64812
2009-02-17 21:08:21 +00:00
9178155206
Shoot! Remove this debugging line again!
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llvm-svn: 64617
2009-02-15 22:50:17 +00:00
b020e0d14c
Don't discard definitions of common symbols. Not sure if this is the right fix.
...
Before this change, the program:
int var;
int main(void) { return 0; }
when run under 'nm -g' would show 'U var' with the gold plugin and
'B var' with gcc.
llvm-svn: 64616
2009-02-15 22:49:17 +00:00
4ddcc43724
Free the buffer in the case where we don't create a module out of it, as
...
pointed out by Torok Edwin.
Remove trailing whitespaces.
llvm-svn: 64002
2009-02-07 03:15:01 +00:00
74b5ef7cae
Free the buffer.
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llvm-svn: 63907
2009-02-06 01:58:34 +00:00
9f694e4b3b
It's not obvious, but lto_module_create_from_memory doesn't need to use the
...
buffer after it creates the Module. Thus, we don't need to store this pointer
in claimed_file.
llvm-svn: 63834
2009-02-05 05:36:01 +00:00
8691c47e9e
Remove accidentally included debug message!
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Reword a comment for clarity. Remove some extra whitespace.
llvm-svn: 63823
2009-02-05 04:14:23 +00:00
a488ee0e35
Alphabetize includes. Update comment.
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llvm-svn: 63771
2009-02-04 21:00:02 +00:00
a2794dba04
remove printf - it was there only for debugging!
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llvm-svn: 63742
2009-02-04 17:40:28 +00:00
4b35a81845
add support for .a files containing LLVM IR to the gold plugin
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llvm-svn: 63741
2009-02-04 17:39:30 +00:00
fb643e4d9f
Add LLVM plugin for gold.
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llvm-svn: 63623
2009-02-03 07:13:24 +00:00
Rafael Espindola