From f635e28df8d0737ec4c05aaca7bcbbbc7e47dba3 Mon Sep 17 00:00:00 2001 From: Hubert Tong Date: Tue, 13 Aug 2019 13:38:15 +0000 Subject: [PATCH] [AIX][test/Index] Set/propagate AIXTHREAD_STK for AIX Summary: Some tests perform deep recursion, which requires a larger pthread stack size than the relatively low default of 192 KiB for 64-bit processes on AIX. The `AIXTHREAD_STK` environment variable provides a non-intrusive way to request a larger pthread stack size for the tests. The required pthread stack size depends on the build configuration. A 4 MiB default is generous compared to the 512 KiB of macOS; however, it is known that some compilers on AIX produce code that uses comparatively more stack space. Reviewers: xingxue, daltenty, jasonliu Reviewed By: daltenty Subscribers: arphaman, jfb, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D65688 llvm-svn: 368690 --- clang/test/Index/lit.local.cfg | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 clang/test/Index/lit.local.cfg diff --git a/clang/test/Index/lit.local.cfg b/clang/test/Index/lit.local.cfg new file mode 100644 index 000000000000..fb7d197d8238 --- /dev/null +++ b/clang/test/Index/lit.local.cfg @@ -0,0 +1,12 @@ +import platform + +# Some tests perform deep recursion, which requires a larger pthread stack size +# than the relatively low default of 192 KiB for 64-bit processes on AIX. The +# `AIXTHREAD_STK` environment variable provides a non-intrusive way to request +# a larger pthread stack size for the tests. Various applications and runtime +# libraries on AIX use a default pthread stack size of 4 MiB, so we will use +# that as a default value here. +if 'AIXTHREAD_STK' in os.environ: + config.environment['AIXTHREAD_STK'] = os.environ['AIXTHREAD_STK'] +elif platform.system() == 'AIX': + config.environment['AIXTHREAD_STK'] = '4194304'