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python*: set thread stack size on musl

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Ensure recursion limit is reached before stack overflow.

Python does this for OSX and BSD:
https://github.com/python/cpython/blob/13ff24582c99dfb439b1af7295b401415e7eb05b/Python/thread_pthread.h#L22

Size of 1MB chosen to match value in Alpine:
https://git.alpinelinux.org/cgit/aports/commit/main/python2/APKBUILD?id=2f35283fec8ec451fe5fb477dd32ffdcc0776e89

Manual testing via Alpine's test-stacksize.py crashes on these
previously, and works with these changes.
This commit is contained in:
Will Dietz
2018-03-20 08:14:04 -05:00
parent 7e44f19fce
commit 9aa22191cf
4 changed files with 11 additions and 1 deletions
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pkgs/development/interpreters/python/cpython/2.7/default.nix
+2 -1
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@@ -176,7 +176,8 @@ in stdenv.mkDerivation {
LDFLAGS = stdenv.lib.optionalString (!stdenv.isDarwin) "-lgcc_s";
inherit (mkPaths buildInputs) C_INCLUDE_PATH LIBRARY_PATH;
NIX_CFLAGS_COMPILE = optionalString stdenv.isDarwin "-msse2";
NIX_CFLAGS_COMPILE = optionalString stdenv.isDarwin "-msse2"
+ optionalString hostPlatform.isMusl " -DTHREAD_STACK_SIZE=0x100000";
DETERMINISTIC_BUILD = 1;
setupHook = python-setup-hook sitePackages;