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Ciro Santilli 六四事件 法轮功
2019-07-22 00:00:00 +00:00
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@@ -7303,6 +7303,40 @@ qemu: uncaught target signal 6 (Aborted) - core dumped</pre>
<pre>ld: cannot find -lopenblas</pre>
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<p><code>g++</code> and pthreads also causes issues: <a href="https://stackoverflow.com/questions/35116327/when-g-static-link-pthread-cause-segmentation-fault-why" class="bare">https://stackoverflow.com/questions/35116327/when-g-static-link-pthread-cause-segmentation-fault-why</a></p>
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<p>As a consequence, the following fails:</p>
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<pre>./run --userland userland/cpp/atomic.cpp --static</pre>
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<p>with error:</p>
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<pre>qemu-x86_64: /path/to/linux-kernel-module-cheat/submodules/qemu/accel/tcg/cpu-exec.c:700: cpu_exec: Assertion `!have_mmap_lock()' failed.
qemu-x86_64: /path/to/linux-kernel-module-cheat/submodules/qemu/accel/tcg/cpu-exec.c:700: cpu_exec: Assertion `!have_mmap_lock()' failed.</pre>
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<p>and if we manually build and run natively on host it segfaults.</p>
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<p>If we hack the compilation command to do instead:</p>
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<pre>-pthread -Wl,--whole-archive -lpthread -Wl,--no-whole-archive</pre>
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<p>then it works. We should automate that at some point.</p>
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