https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=78b17c4d5110664403dee92ec54b2c4b0c68242c
commit 78b17c4d5110664403dee92ec54b2c4b0c68242c Author: Jeremy Drake <[email protected]> Date: Wed Jul 9 11:06:20 2025 -0700 Cygwin: testsuite: link cygload with --disable-high-entropy-va This is a mingw program meant to demonstrate loading the Cygwin dll in a non-Cygwin process, but the Cygwin dll still initializes the cygheap on load in that case. Without --disable-high-entropy-va, Windows may occasionally locate the PEB, TEB, and/or stacks in the address space that Cygwin tries to reserve for the cygheap, resulting in a failure. Fixes: 60675f1a7eb2 ("Cygwin: decouple shared mem regions from Cygwin DLL") Signed-off-by: Jeremy Drake <[email protected]> Diff: --- winsup/testsuite/mingw/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/winsup/testsuite/mingw/Makefile.am b/winsup/testsuite/mingw/Makefile.am index 25300a15d..775d617ae 100644 --- a/winsup/testsuite/mingw/Makefile.am +++ b/winsup/testsuite/mingw/Makefile.am @@ -23,7 +23,7 @@ cygrun_SOURCES = \ cygload_SOURCES = \ ../winsup.api/cygload.cc -cygload_LDFLAGS=-static -Wl,-e,cygloadCRTStartup +cygload_LDFLAGS=-static -Wl,-e,cygloadCRTStartup -Wl,--disable-high-entropy-va winchild_SOURCES = \ ../winsup.api/posix_spawn/winchild.c
