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Differential D46406

rtld-elf: Add CFI annotation for .rtld_start on RISC-V
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Authored by arichardson on Aug 21 2024, 10:39 PM.
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jrtc27
jhb
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riscv
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rG04262ed78d23: rtld-elf: Add CFI annotation for .rtld_start on RISC-V
Summary

Without this change, unwinders such as LLVM libunwind will attempt to
unwind beyond the start of RTLD and get stuck in an infinite loop or
crash (depending on the current values on the stack).
This fixes an infinite loop in the LLVM libunwind test suite on RISC-V.

See also https://reviews.freebsd.org/D40844 for AArch64

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rG FreeBSD src repository
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libexec/
rtld-elf/
riscv/
1 line

Diff 142423

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libexec/rtld-elf/riscv/rtld_start.S

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