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Extend signal support #53

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cpriebe opened this issue Jul 11, 2019 · 0 comments
Open

Extend signal support #53

cpriebe opened this issue Jul 11, 2019 · 0 comments
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cpriebe commented Jul 11, 2019

Currently SGX-LKL has only limited signal support. Signal handlers can be installed for SIGSEGV and SIGFPE. SIGILL handling is currently only used for transparently handling CPUID and RDTSC instructions which are illegal in SGX v1. Custom handlers should be supported at least for the most common catchable signals.

Also, a number of signal related functions/system calls such as sigsuspend, sigprocmask, sigwait are currently not supported. Ultimately these should be implemented within the enclave.
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