825706be7d
This reverts parts of commit 885d7b759b5c166c07c07f4c58c6e0ba110fb0c2, and adds verbose comments explaining all the variants of this function, for clarity for future readers. It turns out that those functions actually weren't misnamed or unused after all: Apparently Clang doesn't match GCC when it comes to what stack probe function is referenced on i386 mingw. GCC < 4.6 references a symbol named "___chkstk", with three leading underscores, and GCC >= 4.6 references "___chkstk_ms". Restore these functions, to allow linking object files built with GCC with compiler-rt.
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================