https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110297
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Ian Lance Taylor <i...@gcc.gnu.org>: https://gcc.gnu.org/g:efecb298d880cda20f8d7bea2d7b500a9752ce56 commit r14-1999-gefecb298d880cda20f8d7bea2d7b500a9752ce56 Author: Ian Lance Taylor <i...@golang.org> Date: Mon Jun 19 14:57:54 2023 -0700 runtime: use a C function to call mmap The final argument to mmap, of type off_t, varies. In CL 445375 we changed it to always use the C off_t type, but that broke 32-bit big-endian Linux systems. On those systems, using the C off_t type requires calling the mmap64 function. In C this is automatically handled by the <sys/mman.h> file. In Go, we would have to change the magic //extern comment to call mmap64 when appropriate. Rather than try to get that right, we instead go through a C function that uses C implicit type conversions to pick the right type. Fixes PR go/110297 Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/504415
