RISC-V 32-bit glibc port

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" summary

Adds 64-bit time_t on RV32 so RISC‑V 32‑bit can avoid the 2038 overflow, implements the new 5.1+ year‑2038‑safe syscalls and reworks glibc syscall wrappers, with special handling for wait/waitid and padding/endianness conversions. Upstreaming progresses via RFCs and patches against glibc 2.32, tests fall from ~1000 failures to about 28 failing cases, and each full clean build + test run takes 19‑hour full build/test cycles; port mostly works but needs remaining fixes and kernel 5.4+ features.

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" chapters (6)

1. 0:00Western Digital
2. 2:1564-bit time_t on 32-bit systems
3. 5:33glibc 64-bit time_t syscall conversion Applies to all 32-bit archs
4. 7:07RV32 glibc port
5. 8:30Current RV32 glibc status
6. 10:35Lessons learnt from upstreaming glibc upstream work is a very slow process

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