[Bug libelf/23903] Uses linux specifc mremap

bibi584762 at gmail dot com sourceware-bugzilla@sourceware.org
Sun Aug 4 16:47:00 GMT 2019


https://sourceware.org/bugzilla/show_bug.cgi?id=23903

--- Comment #12 from Jean Michault <bibi584762 at gmail dot com> ---
(In reply to Mark Wielaard from comment #9)
> (In reply to Jean Michault from comment #8)
> > Created attachment 11932 [details]
> > patch to allow compile on systems without mremap
> > 
> > I suggest the patch attached.
> > This makes it possible to compile elfutils on nonlinux systems, but
> > generates an error if one tries to use features that need mremap.
> 
> Thanks. Some questions about the proposed patch:
> - What defines HAVE_MMAP?
>   I don't believe we currently have a configure check for it, should we?
> - The guard checks for HAVE_MMAP, but the code calls mremap.
>   Should we have a HAVE_MREMAP guard and configure check instead?
> - On which systems did you test and what were the make check results?

I propose another patch that checks mremap.
I tested on a debian system GNU / Hurd 2019. The compilation is going well but
some tests fail:

============================================================================
Testsuite summary for elfutils 0.176
============================================================================
# TOTAL: 205
# PASS:  170
# SKIP:  23
# XFAIL: 0
# FAIL:  12
# XPASS: 0
# ERROR: 0

failing tests are :
FAIL: run-readelf-loc.sh
FAIL: run-readelf-ranges.sh
FAIL: run-bug1-test.sh
FAIL: run-varlocs.sh
FAIL: run-allfcts-multi.sh
FAIL: elfstrtab
FAIL: emptyfile
FAIL: run-get-units-split.sh
FAIL: run-attr-integrate-skel.sh
FAIL: run-all-dwarf-ranges.sh
FAIL: run-unit-info.sh
FAIL: run-copyadd-sections.sh

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