Commit Graph

46 Commits

Author SHA1 Message Date
Douglas Gregor f94e00d869 Alternative fix to make sure that the extern declarations used by
DynamicLibrary::SearchForAddressOfSymbol refer to declarations in the
global namespace.

llvm-svn: 92023
2009-12-23 19:12:50 +00:00
Douglas Gregor 051b92c3cd Revert 92020 until I figure out a more portable fix
llvm-svn: 92021
2009-12-23 19:04:10 +00:00
Douglas Gregor 93254e1ffb Move the extern symbol declarations outside of
DynamicLibrary::SearchForAddressOfSymbol and force them to have "C"
linkage. 

Interestingly, GCC treats the block-scoped "extern" declarations we
previously had as if they were extern "C" declarations (or, at least,
were in the global namespace), so that GCC bug papered over this LLVM
bug. Clang and EDG get the linkage correct; this new variant seems to
work for both GCC and Clang.

llvm-svn: 92020
2009-12-23 18:56:27 +00:00
Chandler Carruth 083524ae5c Remove unused includes.
llvm-svn: 85074
2009-10-25 22:38:41 +00:00
Torok Edwin 487d576020 Fix ExplicitSymbols leak.
llvm-svn: 80589
2009-08-31 16:12:29 +00:00
Chris Lattner 3612256e2e Eliminate the static constructors and locks from DynamicLibrary.cpp.
This fixes PR4512 and eliminating static ctors is always good.  Losing
thread safety is unfortunate, but the code is just incredibly poorly
designed.

If someone is interested, the "right" solution is to split
DynamicLibrary.cpp into two separate pieces: a stateless piece in
libsystem, and a simple support file in libsupport that has the
"state" (e.g.  AddSymbol) in managed static objects.

Doing this would both fix memory leaks we already have, as well as make
the code thread safe again.  it would also make sense to move all the
unix specific code in System/DynamicLibrary.cpp into 
System/Unix/DynamicLibrary.inc.

llvm-svn: 74927
2009-07-07 18:17:07 +00:00
Chris Lattner 5ceb2cb005 remove dead code, noone creates instances of "DynamicLibrary", so the ctor and dtor are dead.
llvm-svn: 74926
2009-07-07 18:01:58 +00:00
Chris Lattner 4efb280fb0 we don't use libtool anymore, update comments.
llvm-svn: 74924
2009-07-07 17:50:11 +00:00
Owen Anderson 021c3b0756 Guard dynamic library loading.
I did my best at implementing this for Win32, but I don't have a way to test it.
Can someone with access to a Win32 machine test/fix this?

llvm-svn: 74188
2009-06-25 18:12:44 +00:00
Chris Lattner c0474013cb Fix PR3424, a static constructor ordering issue. Patch by Robert Schuster!
llvm-svn: 63269
2009-01-29 04:43:42 +00:00
Duncan Sands 26ff6f9c54 Add <cstdio> include where needed by gcc-4.4.
Patch by Samuel Tardieu.

llvm-svn: 57291
2008-10-08 07:23:46 +00:00
Chris Lattner 2e24e0ca68 open plugins with RTLD_GLOBAL, pointed out by Bram Adams.
llvm-svn: 53385
2008-07-10 00:52:20 +00:00
Dan Gohman a8b7e78f54 Remove uses of llvm/System/IncludeFile.h that are no longer needed.
llvm-svn: 50695
2008-05-06 01:32:53 +00:00
Devang Patel af305d2342 Remove unused GetAddressOfSymbol()
Thanks Daniel Dunbar!

llvm-svn: 48340
2008-03-13 16:55:34 +00:00
Chris Lattner 1f49988a7a This is a simple fix for getting error messages from dlerror in
LoadLibraryPermanently. The current code modifies the value of a pointer
that is passed by value, so the caller never gets the message.

Patch by Julien Lerouge!

llvm-svn: 48270
2008-03-12 00:50:01 +00:00
Anton Korobeynikov 6636210de7 Provide __main hooks for cygwin & mingw32
llvm-svn: 47479
2008-02-22 10:08:31 +00:00
Devang Patel f64f7fb1b6 Remove use of ltdl
llvm-svn: 47065
2008-02-13 17:11:39 +00:00
Duncan Sands 48f22f0b80 Fix compile failures with g++-4.3.
llvm-svn: 45781
2008-01-09 19:42:09 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Anton Korobeynikov 9050bd1f68 Provide hook for _alloca to make JITing on Cygwin slightly happier :)
llvm-svn: 44528
2007-12-03 05:30:41 +00:00
Chris Lattner 8861abe6f2 really fix PR1581, thanks to Daniel Dunbar for pointing
this out.

llvm-svn: 42448
2007-09-28 20:50:50 +00:00
Chris Lattner 364439eb15 Fix PR1581, patch by Timo Savola
llvm-svn: 40616
2007-07-31 06:00:51 +00:00
Chris Lattner 104fc7f823 silence warning
llvm-svn: 33746
2007-02-01 04:57:00 +00:00
Reid Spencer 9f900c1f92 Unbreak Darwin.
llvm-svn: 33375
2007-01-19 22:04:24 +00:00
Reid Spencer a96084901c Help the lli interpreter find the stderr/stdin/stdout symbols. These are
needed for output to be generated. On Linux these are both global vars and
macro definitions so we have to special case Linux.

llvm-svn: 33374
2007-01-19 21:41:04 +00:00
Reid Spencer dcf6f90033 Handle each of stderr/stdin/stdout separately.
llvm-svn: 33373
2007-01-19 21:30:39 +00:00
Reid Spencer 750f80e306 Avoid taking the address of a macro by checking to see if stdin is defined
or not. This allows DynamicLibrary.cpp to compile on Darwin.

llvm-svn: 33064
2007-01-11 00:35:10 +00:00
Reid Spencer 1b2eeedd85 Allow LLI, in interpreter mode, to find stdin, stdout, and stderr. This is
a bit of a hack but it lets some of the llvm-test programs run.

llvm-svn: 33058
2007-01-10 19:50:43 +00:00
Chris Lattner 9543866c27 Guess what happens when asserts are disabled. :(
Also, the assert could never fire due to || instead of &&.

llvm-svn: 29977
2006-08-30 20:37:06 +00:00
Reid Spencer 51e6f68b47 For PR797:
Final commit for this bug. This removes the last EH holdouts in LLVM
and turns off exception support by using the -fno-exceptions option. This
leads to the following reduction in library and executable sizes:
                DEBUG BUILD                RELEASE BUILD
         before     after   delta     before   after    delta
lib    162,328K  157,616K   4,712    17,864K  16,416K  1,448K
bin    571,444K  557,156K  14,288    63,296K   56,996K 6,300K

Debug   Improvement: 19,000K (2.59%)
Release Improvement:  7,748K (9.55%)

llvm-svn: 29882
2006-08-25 19:54:53 +00:00
Reid Spencer 082e2a7821 For PR780:
Put the rest of lib/System into LinkAllVMCore.h. This makes all of
lib/System available to programs that #include LinkALlVMCore.h so that
loadable modules linked into those programs can depend on all of lib/System
being available.

llvm-svn: 29288
2006-07-26 16:55:39 +00:00
Chris Lattner 8c8858a6c4 Change LoadLibraryPermanently to not throw an exception.
llvm-svn: 29048
2006-07-07 17:12:36 +00:00
Chris Lattner 78b8e977b2 Bug noticed, by inspection. Filename can be null.
llvm-svn: 28292
2006-05-14 19:00:53 +00:00
Chris Lattner 1971e8a77b Fix iterator invalidation bug, identified by Coverity.
llvm-svn: 28257
2006-05-12 18:13:11 +00:00
Jeff Cohen baeb39c969 Add AddSymbol() method to DynamicLibrary to work around Windows limitation
of being unable to search for symbols in an EXE.  It will also allow other
existing hacks to be improved.

llvm-svn: 25805
2006-01-30 04:33:51 +00:00
Misha Brukman 10468d8a3c Remove trailing whitespace
llvm-svn: 21422
2005-04-21 22:55:34 +00:00
Reid Spencer c892a0db9f Rename Unix/*.cpp and Win32/*.cpp to have a *.inc suffix so that the silly
gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})

llvm-svn: 19426
2005-01-09 23:29:00 +00:00
Reid Spencer 862ebf5277 Correct the case of a #include directory name, just in case.
llvm-svn: 19254
2005-01-02 09:45:04 +00:00
Jeff Cohen 683b1a5e3c Get VC++ building again
llvm-svn: 19140
2004-12-24 16:26:47 +00:00
Jeff Cohen 039b4abf6c Eliminate use of ltdl.c when doing a VC++ build. Because libtool isn't used,
ltdl's LGPL license would infect all of LLVM.

llvm-svn: 19137
2004-12-24 07:57:09 +00:00
Chris Lattner 73a1914131 Fix compilation error on Darwin.
llvm-svn: 18485
2004-12-04 04:17:20 +00:00
Chris Lattner 4cf8b36469 Move darwin-specific majik here.
llvm-svn: 18466
2004-12-03 23:02:42 +00:00
Reid Spencer 0e6a4fc448 Implement two new functions: LoadLibraryPermanently and
SearchForAddressOfSymbol.

llvm-svn: 18355
2004-11-29 13:33:28 +00:00
Reid Spencer 3468ae1a87 We just use ltdl's implementation for this abstraction now. Its portable to
more platforms than LLVM supports.

llvm-svn: 18352
2004-11-29 12:39:10 +00:00
Reid Spencer 72a7457a90 Implement the default constructor which causes the current program to be
opened as if it was a dynamic library so its symbols can be searched too.

llvm-svn: 18341
2004-11-29 10:39:46 +00:00
Reid Spencer 4a763ca854 Dynamic Library abstraction. This makes the abstraction of a single dynamic
library (shared library/shared object) whose symbols can be looked up
dynamically. Used for plug-ins.

llvm-svn: 17940
2004-11-18 04:33:39 +00:00