https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207631
Bug ID: 207631
Summary: rtld requires the first PT_LOAD segment to be .text
and is incompatible with output produced by lld
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: misc
Assignee: [email protected]
Reporter: [email protected]
The first PT_LOAD segment is traditionally mapped with R+X permission and
contains the .text section. rtld assumes this is the case and the temporarily
maps this segment RWX while applying non-plt relocations.
The LLVM linker lld currently puts .rodata in the first PT_LOAD with only R
permission and .text in the second PT_LOAD with RX.
rtld then segfaults while trying to apply relocations to .text which has not
been updated with write permission.
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