c++ - How do I fix segfault error 4 in a shared library from Qt? -

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so heres issue....

i have application1 start application2 through qprocess. application2 has dependencies on qt shared libraries, before start qprocess, set qprocess system environment current environment in application1, ld_library_path pointing qt shared libs in code below:

void myclass::setenvironment() {     qprocessenvironment env = qprocessenvironment::systemenvironment();     m_process->setprocessenvironment(env);     qstringlist envlist = m_process->systemenvironment();     m_process->setworkingdirectory(m_project->path()); }

after call qprocess::start, exitstatus returns qprocess::crashexit.

i tried debugging application2 error before enters main. after looking kernel logs encountered error:

jul 23 09:30:40 centos7-gui kernel: application2[23290]: segfault @ 38 ip 00002b4916d67969 sp 00007fff1b2e7c30 error 4 in libqt5core.so.5.3.1[2b4916c36000+510000]

again, ive checked system environment after setting it, , ld_library_path needs be. also, if run application2 seperately, , not within application1 through qprocess, works fine.

does have suggestions on or how fix it? killing me!


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