On 8/31/21 9:02 AM, Jonathan Wakely wrote:
It looks like my questions about this patch never got an answer, and it never got applied.Could somebody say whether TLS is enabled for native *-*-mingw* builds? If it is, then we definitely need to add GCC_CHECK_TLS to the cross-compiler config too. For a linux-hosted x86_64-w64-mingw32 cross compiler I see TLS is not enabled: /* Define to 1 if the target supports thread-local storage. */ /* #undef _GLIBCXX_HAVE_TLS */ On Mon, 19 Feb 2018 at 08:59, Hugo Beauzée-Luyssen <h...@beauzee.fr> wrote:libstdc++-v3: Check for TLS support on mingw 2018-02-16 Hugo Beauzée-Luyssen <h...@beauzee.fr> * crossconfig.m4: Check for TLS support on mignw * configure: regenerate Index: libstdc++-v3/crossconfig.m4 =================================================================== --- libstdc++-v3/crossconfig.m4 (revision 257730) +++ libstdc++-v3/crossconfig.m4 (working copy) @@ -197,6 +197,7 @@ case "${host}" in GLIBCXX_CHECK_LINKER_FEATURES GLIBCXX_CHECK_MATH_SUPPORT GLIBCXX_CHECK_STDLIB_SUPPORT + GCC_CHECK_TLS ;; *-netbsd*) SECTION_FLAGS='-ffunction-sections -fdata-sections'
According to MSYS2 native from https://mirror.msys2.org/mingw/ucrt64/mingw-w64-ucrt-x86_64-gcc-10.3.0-5-any.pkg.tar.zst:
x86_64-w64-mingw32/bits/c++config.h:#define _GLIBCXX_HAVE_TLS 1 So yes.
OpenPGP_0x713B5FE29C145D45.asc
Description: OpenPGP public key
OpenPGP_signature
Description: OpenPGP digital signature
