Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: duncan Type: task | Status: closed Priority: high |Milestone: 6.12.1 Component: Compiler | Version: 6.11 Severity: normal| Resolution: fixed Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Changes (by simonmar): * status: new = closed * resolution: = fixed Comment: Shared libs are working on Linux in 6.12.1. We should open separate tickets for other tasks remaining to be done. A big thanks to everyone who has worked on getting shared library support into GHC over the years, particularly Wolfgang Thaller, Clemens Fruhwirth and Duncan Coutts. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:30 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support
-+--
Reporter: simonmar |Owner: duncan
Type: task | Status: new
Priority: high |Milestone: 6.12.1
Component: Compiler | Version: 6.11
Severity: normal| Resolution:
Keywords:| Difficulty: Difficult (1 week)
Testcase:| Os: Unknown/Multiple
Architecture: Unknown/Multiple |
-+--
Changes (by Pete):
* cc: 1...@234.cx (added)
Comment:
Although we could use LD_LIBRARY_PATH to include the appropriate
directory, that feels like a dirty hack: the standard Linux practice seems
to be to put any shared libraries the linker needs to find where it will
find them by default.
Most packages I've seen install shared libraries in $PREFIX/lib. If you
accept the default $PREFIX, this means they will go in /usr/local/lib, and
the linker is normally set so it will find them there. If a package (deb,
rpm or whatever) is being built, then $PREFIX will usually be set to /usr.
In this case, the libraries will go in /usr/lib and again the linker will
find them.
If you decide to install the package in a private directory, the linker
won't find the libraries. In this case you can set the executable's rpath
to the directory where the libraries are to be found. The downside is
that this makes the executables non-portable. If Fred installs the
libraries in ~fred/lib and Jim installs them in ~jim/lib, they won't be
able to run each other's executables. The rpath will be set correctly for
the person who compiled the executable, but no one else. At this point
you have to set LD_LIBRARY_PATH and work round it that way.
The Debian package of ALSA takes a different approach. It installs its
libraries in /usr/lib/alsa-lib/ and installs
/etc/ld.so.conf.d/libasound2.conf which points to them. (This file
contains a single line, '/usr/lib/alsa-lib'.) This approach makes sense,
I imagine, if you are installing a lot of libraries and don't want to
clutter up /usr/lib.
I was just doing some experiments to make sure I'd got this right. I
created foo.c:
#include stdio.h
void blah() {
printf(Hello World!\n);
}
and bar.c:
extern void blah();
main() {
blah();
}
First of all I build foo.c into a shared library:
$ gcc -fPIC -shared foo.c -o libfoo.so
I can then link bar.c in two ways. Here is the first option:
$ gcc bar.c -o bar -L. -lfoo
$ ./bar
./bar: error while loading shared libraries: libfoo.so: cannot open shared
object file: No such file or directory
$ LD_LIBRARY_PATH=. ./bar
Hello World!
Second option:
$ gcc bar.c -o bar -Wl,--rpath=/home/pc -L. -lfoo
$ ./bar
Hello World!
I hope this is helpful. I'm not a functional programming expert, so I
can't implement this myself. On the other hand, I'm happy to help with
any of these operating system issues. My email is 1...@234.cx if you want
anything from me.
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:29
GHC http://www.haskell.org/ghc/
The Glasgow Haskell Compiler___
Glasgow-haskell-bugs mailing list
Glasgow-haskell-bugs@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: duncan Type: task | Status: new Priority: high |Milestone: 6.12.1 Component: Compiler | Version: 6.11 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Changes (by simonmar): * owner: = duncan -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:28 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: Type: task | Status: new Priority: high |Milestone: 6.12.1 Component: Compiler | Version: 6.11 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Changes (by juhpetersen): * version: 6.8.1 = 6.11 Comment: Replying to [comment:26 ttuegel]: 1. ./configure --enable-shared make successfully compiles a compiler! I nearly fell out of my chair in awe! Cool - that is indeed great news. Wow, wow! :-) I managed to make install ghc-6.11.20090421 with fedora ghc-6.10.2.x86_64 with a small patch I am attaching next: install needs to use dist-inplace/ghc-pkg not dist-install, which might be what ttuegel also ran into in the proceeding comment. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:27 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support
-+--
Reporter: simonmar |Owner:
Type: task | Status: new
Priority: high |Milestone: 6.12.1
Component: Compiler | Version: 6.8.1
Severity: normal| Resolution:
Keywords:| Difficulty: Difficult (1 week)
Testcase:| Os: Unknown/Multiple
Architecture: Unknown/Multiple |
-+--
Changes (by ttuegel):
* cc: ttue...@gmail.com (added)
Comment:
Since there hasn't been any chatter on this ticket in more than a month, I
thought I would share some observations I made today testing shared
library support on x86_64 Linux (I also have an x86 machine to test on
later). I apologize in advance if this information is redundant; keep in
mind it comes from an only moderately well-informed outsider.
1. ./configure --enable-shared make successfully compiles a compiler!
I nearly fell out of my chair in awe!
2. make -jN does not work for N 1, but this may be a symptom of the
build system in general, and not of shared library support.
3. Because we need binaries bootstrapped as part of the compile process to
install everything, make install fails because the operating system linker
cannot find the shared libraries.
I was able to use some LD_LIBRARY_PATH magic to include the relevant build
directories and install anyway, but this only exposed the following:
4. We put shared libraries for most packages into ${prefix}/lib but the
rts and ffi shared-libraries go into ${prefix}/lib/ghc-6.11.20090409 where
the dynamic linker won't find them by default. Although we could use
LD_LIBRARY_PATH to include the appropriate directory, that feels like a
dirty hack: the standard Linux practice seems to be to put any shared
libraries the linker needs to find where it will find them by default.
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:26
GHC http://www.haskell.org/ghc/
The Glasgow Haskell Compiler___
Glasgow-haskell-bugs mailing list
Glasgow-haskell-bugs@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: Type: task | Status: new Priority: high |Milestone: 6.12.1 Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Changes (by igloo): * milestone: 6.10 branch = 6.12.1 -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:25 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: Type: task | Status: new Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Comment (by simonmar): see also #3072 -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:24 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: Type: task | Status: new Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Comment (by juhpetersen): Replying to [comment:15 simonmar]: Grab the GHC sources, configure with `--enable-shared`, build as normal and report problems that you encounter. Ok, sorry for the delay. I installed libffi-devel on Fedora rawhide and got quite far this time with stable: : : /home/petersen/ghc-6.10.1.20090303/utils/installPackage/install- inplace/bin/installPackage install '/home/petersen/ghc-6.10.1.20090303/utils/ghc-pkg/install-inplace/bin/ghc- pkg' 'XXX/package.conf' \ /home/petersen/ghc-6.10.1.20090303/ghc/stage2-inplace \ /home/petersen/ghc-6.10.1.20090303/ghc/stage2-inplace \ '$prefix' \ '/home/petersen/ghc-6.10.1.20090303/inplace- datadir' \ '$prefix/libexec' \ '$prefix/dynlib' \ '/home/petersen/ghc-6.10.1.20090303/inplace- datadir' \ '$prefix/doc' \ '$prefix/html' \ '$prefix/haddock' \ --distpref dist-stage2 \ --disable-executable-stripping \ --enable-shell-wrappers Installing executable(s) in /home/petersen/ghc-6.10.1.20090303/ghc/stage2-inplace make[3]: Leaving directory `/home/petersen/ghc-6.10.1.20090303/ghc' make[2]: Leaving directory `/home/petersen/ghc-6.10.1.20090303/compiler' make -C utils with-stage-2 make[2]: Entering directory `/home/petersen/ghc-6.10.1.20090303/utils' make -C installPackage with-stage-2 make[3]: Entering directory `/home/petersen/ghc-6.10.1.20090303/utils/installPackage' /home/petersen/ghc-6.10.1.20090303/libraries/cabal-bin /usr/bin/ghc /home/petersen/ghc-6.10.1.20090303/libraries/bootstrapping.conf 1.6.0.2 configure --distpref dist-install \ --prefix=/NONEXISTENT --bindir=/NONEXISTENT --libdir=/NONEXISTENT --libexecdir=/NONEXISTENT --datadir=/NONEXISTENT --docdir=/NONEXISTENT --haddockdir=/NONEXISTENT --htmldir=/NONEXISTENT \ --with- compiler=/home/petersen/ghc-6.10.1.20090303/ghc/stage2-inplace/ghc --with- hc-pkg=/home/petersen/ghc-6.10.1.20090303/utils/ghc-pkg/install- inplace/bin/ghc-pkg --package-db /home/petersen/ghc-6.10.1.20090303/stage3.package.conf \ --libsubdir='$pkgid' --with-gcc=gcc --with- ld=/usr/bin/ld --with-happy=/usr/bin/happy--configure-option ='--enable-shared' --configure-option=--with-cc=gcc --with- hsc2hs=/home/petersen/ghc-6.10.1.20090303/utils/hsc2hs/install- inplace/bin/hsc2hs \ --constraint=Cabal == 1.6.0.2 Configuring installPackage-1.0... cabal-bin: ghc version =6.4 is required but the version of /home/petersen/ghc-6.10.1.20090303/ghc/stage2-inplace/ghc could not be determined. make[3]: *** [with-stage-2] Error 1 make[3]: Leaving directory `/home/petersen/ghc-6.10.1.20090303/utils/installPackage' make[2]: *** [with-stage-2.installPackage] Error 2 make[2]: Leaving directory `/home/petersen/ghc-6.10.1.20090303/utils' make[1]: *** [stage2] Error 2 make[1]: Leaving directory `/home/petersen/ghc-6.10.1.20090303' make: *** [bootstrap2] Error 2 -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:23 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: clemens Type: task | Status: assigned Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Comment (by simonmar): To my mind this is stalled not just due to lack of effort, but there's some design work to be done - mainly around how distributions, and how Cabal and cabal-install will work with shared libraries. See my list of questions above ([http://hackage.haskell.org/trac/ghc/ticket/1876#comment:11]) for a start. The other thing that worries me is that without having support for fixed ABIs, we could have more problems with shared libraries, since when someone reinstalls a library they will break not only dependent packages, but also existing dynamically-linked binaries. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:20 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: clemens Type: task | Status: assigned Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Comment (by clemens): We need a buildbot for regression testing. I asked a few times on #ghc without much response. Probably I wasn't persistant enough to chase after those responsible. I haven't look at most recent HEAD but frankly, I would be surprised if --enable-shared still works out of the box, where I left it a few months ago. Also I would be surpised if the number of failing test cases given above would have remained constant. Honestly, there is more exciting stuff around than hacking on shared libs. If someone wants to take the job, this one should feel free to reassign the bug to himself. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:18 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: clemens Type: task | Status: assigned Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Comment (by igloo): We'll make it possible to build it in parallel with the non-shared GHC in the new build system, and then we won't need a dedicated buildbot for it. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:19 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: clemens Type: task | Status: assigned Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Changes (by NeilMitchell): * cc: ndmitch...@gmail.com (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: clemens Type: task | Status: assigned Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Changes (by guest): * cc: bulat.zigans...@gmail.com (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: clemens Type: task | Status: assigned Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Comment (by simonmar): Grab the GHC sources, configure with `--enable-shared`, build as normal and report problems that you encounter. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:15 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar |Owner: clemens Type: task | Status: assigned Priority: high |Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Os: Unknown/Multiple Architecture: Unknown/Multiple | -+-- Changes (by juhpetersen): * cc: [EMAIL PROTECTED] (added) Comment: Is there anything one can do to help with testing this? -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: clemens Type: task | Status: assigned Priority: high | Milestone: 6.10 branch Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown/Multiple Os: Unknown/Multiple | --+- Changes (by ingmar): * cc: [EMAIL PROTECTED] (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: clemens Type: task | Status: assigned Priority: high | Milestone: 6.10 branch Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown/Multiple Os: Unknown/Multiple | --+- Changes (by spl): * cc: [EMAIL PROTECTED] (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: clemens Type: task | Status: assigned Priority: high | Milestone: 6.10 branch Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown/Multiple Os: Unknown/Multiple | --+- Comment (by simonmar): Some issues to resolve before we can deploy shared libraries. Some of these are probable just questions to be answered, but hint at documentation that we need to write. * Do GHC distributions contain both shared and static libraries? * Will Cabal build both shared and static libraries by default? * Can a module built with `-dynamic` link against static libraries, if the dynamic versions are not available? * If modules are compiled with `-fPIC` and/or `-dynamic`, can they then be linked statically? On which platforms? If not, what goes wrong if you try this? * On x86_64 we should have `-dynamic` turned on by default, for loading modules into GHCi, otherwise data references to shared libraries will only have 32-bit relocations and thus will break. * Using `-static` at compile-time on x86_64 should therefore come with a warning that the modules cannot be loaded into GHCi. Can we detect this and report an error in GHCi? * What is the performance overhead of turning on `-dynamic` by default on x86_64? * What is the performance overhead (and code-size overhead) of shared libraries in general? -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: clemens Type: task | Status: assigned Priority: high | Milestone: 6.10 branch Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown/Multiple Os: Unknown/Multiple | --+- Changes (by clemens): * status: new = assigned * owner: = clemens * cc: [EMAIL PROTECTED] (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support
--+-
Reporter: simonmar | Owner:
Type: task | Status: new
Priority: high | Milestone: 6.10 branch
Component: Compiler |Version: 6.8.1
Severity: normal| Resolution:
Keywords:| Difficulty: Difficult (1 week)
Testcase:| Architecture: Unknown/Multiple
Os: Unknown/Multiple |
--+-
Comment (by clemens):
I fixed the following for Linux/x86_64 (probably also other archs) in
today's HEAD
./configure --enable-shared; make should compile error free.
It should give you all libraries as shared objects, including a stage2 GHC
package.
The GHC package should be linkable into a working ghc binary (including a
wrapper) that also works in interactive mode. Running the testsuits gives
a few isolated regressions in ghci and template haskell I still have to
dig into.
I won't go into details about the Windows status. At the moment, linking
the RTS dies with unresolved RTS __imp__* symbols. Linking the RTS with
its own import lib (libHSrts*.dll.a) should fix the problem, but I haven't
got there yet.
However, for libgmp on Windows, we need to apply the same trick as with
libffi, namely change it into a Haskell package. Most of the hacking was
already done for libffi, so the changes from libffi/Makefile could be
worked into gmp/Makefile without much trouble, I think.
In any case, I'd like to argue that we should give priority to Linux
dynamic linking. With this I mean that we ship dynamic lib support even if
it's just for this single architecture. This will help to build up a small
user base that will hopefully report regressions as soon as they pop up.
Also Linux is the most hassle free OS when it comes to dynamic library
linking, so it is easier to establish that as base camp for further
climbing.
Except for libffi change, most of the changes are quite minimal. We could
probably target 6.10.2 as milestone for merging this into stable.
On Linux x86-64 dynamic at the moment:
{{{
Unexpected failures:
2014(normal)
T2386(normal)
T2597a(normal)
T2597b(normal)
TH_genEx(normal)
TH_spliceD1(normal)
TH_spliceDecl3(normal)
TH_spliceDecl4(normal)
TH_spliceE5(normal)
prog001(ghci)
prog002(ghci)
prog003(ghci)
}}}
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:9
GHC http://www.haskell.org/ghc/
The Glasgow Haskell Compiler___
Glasgow-haskell-bugs mailing list
Glasgow-haskell-bugs@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: Type: task | Status: new Priority: high | Milestone: 6.10 branch Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown Os: Unknown | --+- Changes (by ajd): * cc: [EMAIL PROTECTED] (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: Type: task | Status: new Priority: high | Milestone: 6.10 branch Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown Os: Unknown | --+- Changes (by simonmar): * milestone: 6.10.1 = 6.10 branch Comment: I've made some progress on this, but it doesn't look like I'll have time to finish it for 6.10.1. Since it doesn't involve API changes, we could possibly get it into a later 6.10 release, though. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: Type: task | Status: new Priority: high | Milestone: 6.10.1 Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown Os: Unknown | --+- Changes (by mafo): * cc: mafo (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: Type: task | Status: new Priority: high | Milestone: 6.10.1 Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown Os: Unknown | --+- Changes (by batterseapower): * cc: [EMAIL PROTECTED] (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: Type: task | Status: new Priority: high | Milestone: 6.10.1 Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Difficult (1 week) Testcase:| Architecture: Unknown Os: Unknown | --+- Changes (by simonmar): * difficulty: Unknown = Difficult (1 week) * milestone: 6.10 branch = 6.10.1 -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1876: Complete shared library support
#1876: Complete shared library support --+- Reporter: simonmar | Owner: Type: task | Status: new Priority: high | Milestone: 6.10 branch Component: Compiler |Version: 6.8.1 Severity: normal| Resolution: Keywords:| Difficulty: Unknown Testcase:| Architecture: Unknown Os: Unknown | --+- Changes (by simonmar): * priority: normal = high -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
[GHC] #1876: Complete shared library support
#1876: Complete shared library support -+-- Reporter: simonmar | Owner: Type: task | Status: new Priority: normal| Milestone: 6.10 branch Component: Compiler | Version: 6.8.1 Severity: normal|Keywords: Difficulty: Unknown |Testcase: Architecture: Unknown | Os: Unknown -+-- This ticket is a placeholder for the shared libraries work, which is mostly working but needs to be completed (binary distributions, issues with `-rpath` etc.). -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1876 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
