On Fri, 13 Aug 2021 20:17:58 -0700 Mark Geisert wrote: > Brian Inglis wrote: > > On 2021-08-13 19:54, Takashi Yano via Cygwin wrote: > >> On Fri, 13 Aug 2021 15:20:40 -0700, Mark Geisert wrote: > >>> Jay Abel via Cygwin wrote: > >>>> On Fri, Aug 13, 2021 at 10:27 AM Jay Abel <jay.a...@gmail.com> wrote: > > > >>>> Sorry, more information. I'm running Windows 10, 64-bit, AMD. > >>>> > >>>> I've reverted cygutils back to 1.4.16-2 and the problem is resolved. > > > >>>>> Run cygstart with anything and no window opens. I've tried URLS > >>>>> cygstart > >>>>> http://www.cygwin.com, directories cygstart . and cygstart ./ as well > >>>>> as > >>>>> pdf files cygstart example.pdf. > >>>>> None of these seems to do anything anymore. > > > >>> I have the same setup as you but all seems well here. With 1.4.16-3 > >>> installed all > >>> four of your testcases work for me. I don't know what to suggest. > >>> When you have a chance, what does 'echo $?' say at the prompt after > >>> cygstart > >>> finishes one of your testcases? 0 means successful, 1 (or something > >>> else) means > >>> failure. > > > >> I have the same issue with cygstart in cygutils 1.4.16-3. > >> "cygstart .; echo $?" says 0. > >> This issue only happens in 64bit cygwin and cygstart in 32bit cygwin works. > >> To look into this problem, I tried to build cygutils from source, > >> however, it fails in the link stage of getclip with the error: > >> /usr/lib/gcc/x86_64-pc-cygwin/10/../../../../x86_64-pc-cygwin/bin/ld: > >> src/clip/getclip.o: in function `getclip': > >> /usr/src/debug/cygutils-1.4.16-3/src/clip/getclip.c:431: undefined > >> reference to > >> `__imp_RtlUnicodeToUTF8N' > >> It seems that -lntdll flag is required to build it. Doesn't this error > >> happen in your environment? > >> So I modified Makefile.am to: > >> src_clip_getclip_LDADD = -lpopt -lntdll > >> src_clip_putclip_LDADD = -lpopt -lntdll > >> and tried to build again and succeeded. > >> The cygstart built locally works fine. > >> So I tried to debug cygstart using gdb and it says: > >> Thread 1 received signal SIGILL, Illegal instruction. > >> The disassembling result at $rip is: > >> => 0x0000000100401c15 <+389>: vmovdqa 0x18c3(%rip),%xmm0 # > >> 0x1004034e0 > >> This is a AVX instruction. > >> My CPU is Core i7-870, which does not support AVX. > >> Then I ran cygstart in another machine whose CPU is Core i7-4790 > >> and it works without the issue. > >> Conclusion: > >> cygstart in cygutils 1.4.16-3 is compiled with AVX extentions, > >> therefore it can not run in old machine. > > > > Any chance this could have been built with test gcc 11 using non-standard > > values > > instead of defaults -march=x86-64/i686 -mtune=generic? > > No, gcc 10.2.0 was used with those defaults.
In my environment: $ objdump -d /usr/bin/cygstart |grep vmovdqa 100401c15: c5 f9 6f 05 c3 18 00 vmovdqa 0x18c3(%rip),%xmm0 # 0x1004034e0 100401c21: c5 f9 6f 0d c7 18 00 vmovdqa 0x18c7(%rip),%xmm1 # 0x1004034f0 100401c2e: c5 f9 6f 15 ca 18 00 vmovdqa 0x18ca(%rip),%xmm2 # 0x100403500 100401c3b: c5 f9 6f 1d cd 18 00 vmovdqa 0x18cd(%rip),%xmm3 # 0x100403510 $ objdump -d cygutils-1.4.16-3.src/cygutils-1.4.16-3.x86_64/inst/usr/bin/cygstart | grep vmovdqa $ -- Takashi Yano <takashi.y...@nifty.ne.jp> -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
