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| author | Kenji Rikitake <[email protected]> | 2016-06-10 09:39:08 +0900 |
|---|---|---|
| committer | Kenji Rikitake <[email protected]> | 2016-06-10 10:46:02 +0900 |
| commit | 6c5277b154316137ebc9f83ed8566357ffebd3e0 (patch) | |
| tree | 84675a8eec8569c914c32825d6911550dd39c05c /README.md | |
| parent | 2c9dba638a8bda92e3db2d5c07e6ba251330c7ca (diff) | |
| download | otp-6c5277b154316137ebc9f83ed8566357ffebd3e0.tar.gz otp-6c5277b154316137ebc9f83ed8566357ffebd3e0.tar.bz2 otp-6c5277b154316137ebc9f83ed8566357ffebd3e0.zip | |
Disregard MAP_NORESERVE for FreeBSD
A fix for running 19.0-rc2 on FreeBSD with HiPE enabled.
* erl_mmap.h: disregard MAP_NORESERVE for FreeBSD
MAP_NORESERVE is undefined in FreeBSD 10.x and later.
This is to enable 64bit HiPE experimentally on FreeBSD.
Note that on FreeBSD MAP_NORESERVE was "never implemented"
even before 11.x (and the flag does not exist in /usr/src/sys/vm/mmap.c
of 10.3-STABLE r301478 either), and HiPE was working on OTP 18.3.3,
so mandating MAP_NORESERVE on FreeBSD might not be needed.
See the following message on how MAP_NORESERVE was treated on FreeBSD:
<http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20150202/122958.html>
* erl_mmap.c: disable MAP_NORESERVE for FreeBSD
* See also <https://github.com/erlang/otp/pull/925/commits/b02ce940c8738785ad018c9f758ca0d05d256bbb>
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