Kunqiu Chen 0aafeb8ba1 Reland [TSan] Clarify and enforce shadow end alignment (#146676) ...

#144648 was reverted because it failed the new sanitizer test
`munmap_clear_shadow.c` in IOS's CI.
That issue could be fixed by disabling the test on some platforms, due
to the incompatibility of the test on these platforms.

In detail, we should disable the test in FreeBSD, Apple, NetBSD,
Solaris, and Haiku, where `ReleaseMemoryPagesToOS` executes
`madvise(beg, end, MADV_FREE)`, which tags the relevant pages as 'FREE'
and does not release them immediately.

2025-07-02 20:28:30 +08:00

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