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| author | Karel Gardas <karel.gardas@centrum.cz> | 2015-10-31 23:16:53 +0100 |
|---|---|---|
| committer | Karel Gardas <karel.gardas@centrum.cz> | 2015-10-31 23:19:34 +0100 |
| commit | bc7cc25676a8edd7be8cab30d4f26b3dd064f717 (patch) | |
| tree | 18d754dcdf5d38a3f249efd94d775920d178e86a /configure.ac | |
| parent | 8f02baac9ea3d8cf8dfbadd2bc3af799ddbc0367 (diff) | |
| download | haskell-bc7cc25676a8edd7be8cab30d4f26b3dd064f717.tar.gz | |
disable large address space on OpenBSD
Summary:
This patch disables large address space on OpenBSD. The motivation
for this is that OpenBSD does not support MAP_NORESERVE. The flag is supported
only for source code compatibility reasons but is otherwise completely ignored
by the OS and its mmap syscall.
Reviewers: austin, bgamari
Subscribers: thomie, erikd
Differential Revision: https://phabricator.haskell.org/D1411
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 65e5d77829..bc18c124cb 100644 --- a/configure.ac +++ b/configure.ac @@ -1046,6 +1046,11 @@ if test "$ac_cv_sizeof_void_p" -eq 8 ; then if test "x$EnableLargeAddressSpace" = "xyes" ; then if test "$ghc_host_os" = "darwin" ; then use_large_address_space=yes + elif test "$ghc_host_os" = "openbsd" ; then + # as of OpenBSD 5.8 (2015), OpenBSD does not support mmap with MAP_NORESERVE. + # The flag MAP_NORESERVE is supported for source compatibility reasons, + # but is completely ignored by OS mmap + use_large_address_space=no else AC_CHECK_DECLS([MAP_NORESERVE, MADV_FREE, MADV_DONTNEED],[],[], [ |