Valgrind: libnvidia-glcore.so.346.47 Условный переход или перемещение зависит от неинициализированного значения. ⇐ C++

[Anonymous]

При запуске моего тестового приложения C++ с моей динамической библиотекой, которая связана с libGL.so NVIDIA, я получаю следующие ошибки (см. ниже), о которых сообщил Valgrind. У меня возникает соблазн подавить их, но я не уверен, проблема ли это во мне или в чем-то, что есть в libnvidia-glcore.so. Частично неуверенность связана с непониманием результатов работы Valgrind. Я проверил, какие переменные могут быть неинициализированы в моем коде при вызове glXCreateContextAttribsARB, но я их там не увидел. Если это появляется в результатах моей проблемы, какие типы вещей я ищу? Я получаю две ошибки:

==10156== Conditional jump or move depends on uninitialised value(s)
==10156== at 0x7E4CAF4: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7DEE0CD: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7DEEADC: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F75DA1: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F775D3: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7E279BE: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7E27D21: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F760F5: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F3E353: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7A8C9C0: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x4E535F2: opengl_core::render_system::init() (x11_render_system.cpp:92)
==10156== by 0x4040D8: test_render_system::run() (test_x11_render_system.cpp:10)
==10156== Uninitialised value was created by a heap allocation
==10156== at 0x4C29BCF: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==10156== by 0x5116428: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x7EECF2E: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7E479C1: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7DC8C31: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x50BF331: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x50EB72A: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x50EEA87: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x50E47D2: glXCreateContextAttribsARB (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x4E52EF8: opengl_core::render_context::init(opengl_core::render_window&, opengl_core::fb_config&) (x11_render_context.cpp:120)
==10156== by 0x4E534D0: opengl_core::render_system::init() (x11_render_system.cpp:65)
==10156== by 0x4040D8: test_render_system::run() (test_x11_render_system.cpp:10)
==10156==




==10156== Conditional jump or move depends on uninitialised value(s)
==10156== at 0x7E4CAF4: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7DEE0CD: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7DF085F: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F4B78B: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F4CFBC: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7E279BE: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7E27D21: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F4BFE0: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F38ED5: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7B20F52: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7F3E2CB: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7A8C9C0: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== Uninitialised value was created by a heap allocation
==10156== at 0x4C29BCF: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==10156== by 0x5116428: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x7EECF2E: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7E479C1: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x7DC8C31: ??? (in /usr/lib64/nvidia/libnvidia-glcore.so.346.47)
==10156== by 0x50BF331: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x50EB72A: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x50EEA87: ??? (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x50E47D2: glXCreateContextAttribsARB (in /usr/lib64/nvidia/libGL.so.346.47)
==10156== by 0x4E52EF8: opengl_core::render_context::init(opengl_core::render_window&, opengl_core::fb_config&) (x11_render_context.cpp:120)
==10156== by 0x4E534D0: opengl_core::render_system::init() (x11_render_system.cpp:65)
==10156== by 0x4040D8: test_render_system::run() (test_x11_render_system.cpp:10)
==10156==




По запросу:

// src/x11_render_system.cpp
91 m_impl->m_context.make_current(m_impl->m_window);
92 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
93 glClearColor(1.0, 0.0, 0.0, 1.0);
94 glXSwapBuffers(display, window);
95 m_impl->m_context.make_not_current();


Подробнее здесь: https://stackoverflow.com/questions/309 ... on-uniniti