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On 32-bit x86, get the vsyscall address from the AUX vector #963

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On 32-bit x86, get the vsyscall address from the AUX vector #963

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Commits on May 17, 2024

  1. On 32-bit x86, get the vsyscall address from the AUX vector 

    On 32-bit x86, get the vsyscall address from the AT_SYSINFO AUX vector
entry, rather than looking it up in the vDSO. This avoids the need to
link in all the vDSO code if it isn't otherwise needed. And, it's
simpler, avoiding the need for the `rustix_int_0x80` function.
    @sunfishcode
    sunfishcode committed May 17, 2024
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  2. Depend on glibc 2.17 and use getauxval unconditionally.

    @sunfishcode
    sunfishcode committed May 17, 2024
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