#10572: compiler/binutils wrapper
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Reporter: vbraun | Owner:
GeorgSWeber
Type: enhancement | Status:
needs_review
Priority: major | Milestone: sage-5.10
Component: build | Resolution:
Keywords: compiler gcc wrapper rpath spkg | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Old description:
> This ticket aims to implement a compiler wrapper that will suitably
> modify gcc/ld/... arguments before passing them on to the underlying
> compiler binaries. The most current version is at:
>
> https://bitbucket.org/vbraun/compilerwrapper
>
> and a spkg is here:
>
> http://boxen.math.washington.edu/home/vbraun/spkg/compilerwrapper-1.2.spkg
>
> The wrapper is implemented in pure C++ and does not depend on any Sage
> component. At the moment it only wraps gcc and does not do anything for
> other compilers.
>
> Apply trac_10572_compilerwrapper_root.patch to the sage root repository.
New description:
This ticket implements a wrapper for the compiler that lets us rewrite
compiler options on the fly. The goal is to fix:
1. Clashes between system and Sage's libraries due to LD_LIBRARY_PATH
abuse.
1. Relocation issues, i.e., "dead" (hard-coded) RPATHs in binaries (shared
libraries and executables) created by Sage, upon moving the installation
(which includes installing a pre-built / binary distribution).
1. Broken compiler versions / tool chains; work around by messing with
(e.g.) optimization flags, depending on the present compiler and its known
issues.
The wrapper is implemented in pure C++ and does not depend on any Sage
component. At the moment it only wraps gcc and does not do anything for
other compilers.
Code repository https://bitbucket.org/vbraun/compilerwrapper
spkg is here:
http://boxen.math.washington.edu/home/vbraun/spkg/compilerwrapper-1.2.spkg
Apply trac_10572_compilerwrapper_root.patch to the sage root repository.
--
Comment (by vbraun):
Leif: I don't think there is any point in making this an optional spkg. If
the wrapper not installed before you compile the first dynamically-linked
binary then it is useless.
Updated the description.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10572#comment:38>
Sage <http://www.sagemath.org>
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