I have compiled ffmpeg with LDFLAGS='-static-libgcc -static-libstdc++' and Stud_PE says ffmpeg.exe doesn't import anything from libitm, nor does it import anything from libstdc++, libgcc, libiconv, etc.
I also asked it on #mingw-w64 on OFTC and people said it seemed mere undefined references instead of linking 64-bit and 32-bit code together. [18:03:22] <lh_mouse> ktietz, are you familiar with this error? C:/builds/ab/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0\libstdc++.a(cow-stdexcept.o):(.text$_Z35_txnal_cow_string_C1_for_exceptionsPvPKcS_+0x2c): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `_ITM_RU1' [18:13:57] <adrien> mooooooo [18:15:34] <jon_y> lh_mouse: add -litm? [18:16:07] <jon_y> or maybe its a implicit declaration [18:16:16] <lh_mouse> jon_y, this is a question that was sent to msys2 ML yesterday. [18:16:44] <jon_y> yeah, doublecheck the source [18:16:46] <lh_mouse> I am curious about the 'relocation truncated' thing. [18:17:01] <jon_y> thats noise [18:17:10] <lh_mouse> :< [18:17:14] <jon_y> more impotantly - undefined symbol `_ITM_RU1' [18:18:23] <adrien> possibly a mix of libraries which are of different bitnesses [18:20:50] <lh_mouse> adrien, that was also my opinion. [18:21:05] <lh_mouse> It _was_, at least yesterday. [18:21:42] <jon_y> it probably prints something like that whenever there is an undefined symbol [18:23:18] <adrien> well, what's your command-line? [18:23:55] <jturney> yeah, it something like a symbol which is 0 because it's undefined would need to be truncated to fit in a 32-bit relocation [18:24:36] <jturney> the fact that it's undefined is much more important :) [18:26:19] <ktietz> lh_mouse this message looks like an undefined symbol [18:26:52] <lh_mouse> so it sounds caused by undefined symbols in itm. [18:27:01] <ktietz> pretty similar issues you can get, if you try to use short code-model on x64 in some cases. but this seems not to be your issue here [18:27:21] <lh_mouse> it was not my issue... [18:28:04] <ktietz> the issue here is the pseudo-relocation code. we need to create symbols for aliases, which might lead to such messages [18:29:13] <ktietz> there is a symbol, but sadly it isn't here for real ... :/ It may have something to do with MSYS2's libitm but I am not sure. ------------------ Best regards, lh_mouse 2016-07-25 ------------------------------------------------------------- 发件人：Ricardo Constantino <wiia...@gmail.com> 发送日期：2016-07-25 09:30 收件人：lh mouse 抄送：msys2-users,mingw-w64-public 主题：Re: Re: [Msys2-users] Relocation errors when linking with static libstdc++ starting with GCC 6 (64-bit only) Recompiling GCC with https://github.com/Alexpux/MINGW-packages/pull/1588/commits/ba282a67e971e045131291fd0f21ef786b82b1b1 seems to fix the issue for me. I don't know enough to be sure this doesn't break anything else. The alternative would be disabling the patch that enables libitm, but I assumed just disabling weak references in x86_64 wouldn't remove any feature unlike the former. ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
