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Fix AT_EXECPATH for direct exec mode.
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Authored by kib on Dec 20 2019, 10:12 PM.

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Summary

The somewhat problematic case is when the executable path is relative and either $PATH use is not enabled or it contains '/' so $PATH search is not performed. In this case AT_EXECPATH is relative, I might fix this later.

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Repository
rS FreeBSD src repository - subversion
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Automatic diff as part of commit; lint not applicable.
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Event Timeline

libexec/rtld-elf/rtld.c
510 ↗(On Diff #65874)

Testing has shown that aux_info[AT_EXECPATH] is not guaranteed to be non-NULL

kib marked an inline comment as done.

Handle a case when AT_EXECPATH is not present in auxv.
Add XXX comments.

Remove pointless reassignment.

This revision is now accepted and ready to land.Jan 2 2020, 5:13 PM
This revision was automatically updated to reflect the committed changes.