#11543: Profiling information ambiguous
-------------------------------------+-------------------------------------
Reporter: augustss | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.8.3
Keywords: | Operating System: Unknown/Multiple
Architecture: | Type of failure: None/Unknown
Unknown/Multiple |
Test Case: | Blocked By:
Blocking: | Related Tickets:
Differential Rev(s): | Wiki Page:
-------------------------------------+-------------------------------------
If a module M contains two instances of class C with method m and you ask
for top level functions to be profiled then you get two profile entries
for method m, and you cannot tell which is which.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11543>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
#9034: GHCi panics when given C++ object file on GNU/Linux
------------------------------------------+-------------------------------
Reporter: jun0 | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: GHCi | Version: 7.8.2
Keywords: panic, dynamic linking | Operating System: Linux
Architecture: x86_64 (amd64) | Type of failure: GHCi crash
Difficulty: Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: |
------------------------------------------+-------------------------------
When given a C++ object file, GHCi panics saying that it can't find
standard C++ symbols the object file relies on. If foo.cc contains
{{{#!C++
#include <iostream>
extern "C"
void foo ()
{
std::cout << "bar";
}
}}}
and is compiled with
{{{
g++ -fPIC -c -o foo.o foo.cc
}}}
then
{{{
ghci foo.o -lstdc++
}}}
fails with
{{{
GHCi, version 7.8.2: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading object (static) foo.o ... ghc: panic! (the 'impossible' happened)
(GHC version 7.8.2 for x86_64-unknown-linux):
Loading temp shared object failed: /tmp/ghc14109_0/ghc14109_1.so:
undefined symbol: _ZSt4cout
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
It makes no difference to add -L<C++ library paths> which was, IIRC,
necessary in older versions of GHC. This applies to only GHCi with C++ --
GHC can link C++ object files just fine, while GHCi has no trouble loading
C object files.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9034>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
#4012: Compilation results are not deterministic
-------------------------------------+-------------------------------------
Reporter: kili | Owner: niteria
Type: bug | Status: new
Priority: high | Milestone: 8.2.1
Component: Compiler | Version: 6.12.2
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: Other | Test Case:
Blocked By: 11362 | Blocking:
Related Tickets: #10424 | Differential Rev(s): Phab:D910,
| Phab:D1073, Phab:D1133, Phab:D1192,
| Phab:D1268, Phab:D1360, Phab:D1373,
Wiki Page: | Phab:D1396, Phab:D1457, Phab:D1468,
DeterministicBuilds | Phab:D1487, Phab:D1504, Phab:D1508
-------------------------------------+-------------------------------------
Comment (by Bartosz Nitka <niteria@…>):
In [changeset:"d4b548efea15943026dd0d4929b6f0f999b4d718/ghc" d4b548e/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="d4b548efea15943026dd0d4929b6f0f999b4d718"
Add some determinism tests
These are the tests that I accumulated fixing real issues.
Each test is a separate thing that was broken and they are
relatively small.
GHC Trac: #4012
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:201>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
#4012: Compilation results are not deterministic
-------------------------------------+-------------------------------------
Reporter: kili | Owner: niteria
Type: bug | Status: new
Priority: high | Milestone: 8.2.1
Component: Compiler | Version: 6.12.2
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: Other | Test Case:
Blocked By: 11362 | Blocking:
Related Tickets: #10424 | Differential Rev(s): Phab:D910,
| Phab:D1073, Phab:D1133, Phab:D1192,
| Phab:D1268, Phab:D1360, Phab:D1373,
Wiki Page: | Phab:D1396, Phab:D1457, Phab:D1468,
DeterministicBuilds | Phab:D1487, Phab:D1504, Phab:D1508
-------------------------------------+-------------------------------------
Comment (by Bartosz Nitka <niteria@…>):
In [changeset:"5db93d2e567ecb7169b06097244361327ec1eb2a/ghc" 5db93d2/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="5db93d2e567ecb7169b06097244361327ec1eb2a"
Make vectInfoParallelVars a DVarSet
We dump it in the interface file, so we need to do it in a
deterministic order. I haven't seen any problems with this
during my testing, but that's probably because it's unused.
Test Plan: ./validate
Reviewers: simonmar, austin, bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D2313
GHC Trac Issues: #4012
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:199>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
#4012: Compilation results are not deterministic
-------------------------------------+-------------------------------------
Reporter: kili | Owner: niteria
Type: bug | Status: new
Priority: high | Milestone: 8.2.1
Component: Compiler | Version: 6.12.2
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: Other | Test Case:
Blocked By: 11362 | Blocking:
Related Tickets: #10424 | Differential Rev(s): Phab:D910,
| Phab:D1073, Phab:D1133, Phab:D1192,
| Phab:D1268, Phab:D1360, Phab:D1373,
Wiki Page: | Phab:D1396, Phab:D1457, Phab:D1468,
DeterministicBuilds | Phab:D1487, Phab:D1504, Phab:D1508
-------------------------------------+-------------------------------------
Comment (by nomeata):
You are doing such great work that I regret having commented on this bug
before, as now I get spanned by mails about this ticket!
Keep up the good work :-)
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:198>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
#4012: Compilation results are not deterministic
-------------------------------------+-------------------------------------
Reporter: kili | Owner: niteria
Type: bug | Status: new
Priority: high | Milestone: 8.2.1
Component: Compiler | Version: 6.12.2
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: Other | Test Case:
Blocked By: 11362 | Blocking:
Related Tickets: #10424 | Differential Rev(s): Phab:D910,
| Phab:D1073, Phab:D1133, Phab:D1192,
| Phab:D1268, Phab:D1360, Phab:D1373,
Wiki Page: | Phab:D1396, Phab:D1457, Phab:D1468,
DeterministicBuilds | Phab:D1487, Phab:D1504, Phab:D1508
-------------------------------------+-------------------------------------
Comment (by Bartosz Nitka <niteria@…>):
In [changeset:"ad8e2032b86389814f4e1da64c84ab3d3c4c3802/ghc" ad8e203/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="ad8e2032b86389814f4e1da64c84ab3d3c4c3802"
Use DVarSet in Vectorise.Exp
I believe this part of code is a bit unused. That's
probably why it never became a problem in my testing.
I'm changing to deterministic sets here to be safer.
Test Plan: ./validate
Reviewers: simonmar, austin, bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D2312
GHC Trac Issues: #4012
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:196>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
