Andreas Kling 734f63d522 UserspaceEmulator: Add basic TLS (thread-local storage) support ...

The SoftMMU now receives full X86::LogicalAddress values from SoftCPU.
This allows the MMU to reroute TLS accesses to a special memory region.

The ELF executable's PT_TLS header tells us how to allocate the TLS.

Basically, the GS register points to a magical 4-byte area which has
a pointer to the TCB (thread control block). The TCB lives in normal
flat memory space and is accessed through the DS register.

2020-07-12 01:36:45 +02:00

3.7 KiB

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