[all-commits] [llvm/llvm-project] b2f34d: [AIX][z/OS][Support] Provide alternate no-op mappe...
David Tenty via All-commits
all-commits at lists.llvm.org
Wed Jan 5 07:21:22 PST 2022
Author: David Tenty <daltenty at ibm.com>
Date: 2022-01-05 (Wed, 05 Jan 2022)
[AIX][z/OS][Support] Provide alternate no-op mapped_file_region::dontNeedImpl implementation
mapped_file_region::dontNeedImpl added in D116366 calls madvise, which
causes problems for z/OS and AIX.
For z/OS, we don't have either madvise, so treat this as a no-op, same
as Windows does.
For AIX, it doesn't have any effect, doesn't have a standardized
signature, and it needs certain feature test macros (i.e. _ALL_SOURCE)
we don't set by default for LLVM on AIX, so just make it a no-op too.
Differential Revision: https://reviews.llvm.org/D116603
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