Bug #5963

MacOS < 10.6 has no memalign

Added by Yura Sokolov about 3 years ago. Updated about 3 years ago.

[ruby-core:42341]
Status:Rejected
Priority:Normal
Assignee:-
ruby -v:ruby 2.0.0dev Backport:

Description

I use definition of aligned_malloc from trunk in a st_pool_allocation patch for ruby_1_9_3,
and I have report from a man who has OS X 10.5.8 , that there is such error:

pool_alloc.inc.h:55:2: error: #error no memalign function

It seems that OS X before 10.6 had no memalign or posix_memalign function.
Possibly valloc could be used with similar HEAP_ALIGN_LOG determination as done for OpenBSD in http://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/34404

As you can see, it is not possible to choose different version of MacOS here:
https://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/posix_memalign.3.html


Related issues

Related to Backport193 - Backport #5942: Backport r34309-34310 r34312-32414 Rejected 01/29/2012

History

#1 Updated by Yui NARUSE about 3 years ago

  • Status changed from Open to Rejected

We won't support Mac OS X 10.5 or prior on Ruby 2.0.0.
So it is WONTFIX.

We won't backport st_pool_allocation to 1.9.3, so it is also not a problem for us.

You can make a memalign function with mmap by allocating big area and strip the edge
if you want to backport locally.

#2 Updated by Yura Sokolov about 3 years ago

Good day, Yui

Yui NARUSE wrote:

We won't support Mac OS X 10.5 or prior on Ruby 2.0.0.
So it is WONTFIX.

Ok, no questions. That's all I wanted to know.

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