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Bug/cctools syscall (#4440)

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* Handle missing defn of __NR_memfd_create

Generally SYS_foo is defined to __NR_foo (in sys/syscall.h) which is
then defined to a syscall number (in asm/unistd_64.h).  Certain CentOS
systems have SYS_memfd_create defined to __NR_memfd_create but are
missing the second definition.  This is a belt and suspenders solution
to the problem.

See [this post][syscall] for a nice general description of how these
parts fit together.

[syscall]: https://www.uninformativ.de/blog/postings/2017-02-11/0/POSTING-en.html

* Avoid flake8 warning
This commit is contained in:
George Hartzell 2017-06-07 09:51:46 -07:00 committed by Adam J. Stewart
parent 8018f6cdf6
commit 29090a527a
1 changed files with 12 additions and 0 deletions
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12
var/spack/repos/builtin/packages/cctools/package.py
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@ -44,6 +44,18 @@ class Cctools(AutotoolsPackage):
# depends_on('xrootd') # depends_on('xrootd')
depends_on('zlib') depends_on('zlib')
# Generally SYS_foo is defined to __NR_foo (sys/syscall.h) which
# is then defined to a syscall number (asm/unistd_64.h). Certain
# CentOS systems have SYS_memfd_create defined to
# __NR_memfd_create but are missing the second definition.
# This is a belt and suspenders solution to the problem.
def patch(self):
before = '#if defined(__linux__) && defined(SYS_memfd_create)'
after = '#if defined(__linux__) && defined(SYS_memfd_create) && defined(__NR_memfd_create)' # noqa: E501
f = 'dttools/src/memfdexe.c'
kwargs = {'ignore_absent': False, 'backup': True, 'string': True}
filter_file(before, after, f, **kwargs)
def configure_args(self): def configure_args(self):
args = [] args = []
# disable these bits # disable these bits