[PATCH] D64930: [ELF][AArch64] Allow PT_LOAD to have overlapping p_offset ranges

[Peter Smith via Phabricator via llvm-commits]

peter.smith added a comment.

I can reproduce a segfault with this image on an Ubuntu 16.04 linux machine (CPU is a cortex-a72). For reference I needed to alter  the response file to change the dynamic linker --dynamic-linker=/lib/ld-linux-aarch64.so.1

At the moment I'm not very far in debugging what the problem is 
execve("./bin", ["./bin"], [/* 20 vars */]) = -1 EINVAL (Invalid argument)

- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0}

expanding the truncated /* 20 vars */ is not helpful, just the standard arguments passed to execve.

A critical part of the failure seems to be -znow, if I take that out then I get
./bin: error while loading shared libraries: libclang_rt.hwasan-aarch64-android.so: cannot open shared object file: No such file or directory

Will see if I can reproduce in QEMU.


Repository:
  rL LLVM

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https://reviews.llvm.org/D64930