powerpc64-execute-only (Failed) on ppc64

[marxin]

Must be a recent regression (last successful build was from ~3 days ago):

[  284s] ++ code=1
[  284s] ++ echo 'command failed: 15: grep -q '\''Hello world'\'''
[  284s] command failed: 15: grep -q 'Hello world'
[  284s] ++ trap - EXIT

[rui314]

Do you mind if I ask you to bisect? The test doesn't fail in my ppc64 qemu environment.

[marxin]

It's been there since 45bece4 and I get a Segmentation fault when I run $QEMU $t/exe in the mentioned test-case.

[marxin]

[  500s] + gdb -batch -ex run out/test/elf/ppc64/execute-only/exe
[  500s] [Thread debugging using libthread_db enabled]
[  500s] Using host libthread_db library "/lib64/libthread_db.so.1".
[  500s] 
[  500s] Program received signal SIGSEGV, Segmentation fault.
[  500s] 0x00000001000106bc in __glink_PLTresolve ()

[rui314]

Maybe that test has been broken since the beginning but hadn't been executed until the recent change to the cmakefile. Can you share the executable file with me?

Maybe we can just disable the test on ppc64 because no one probably want to use the modern -execute-only option on ppc64v1 though.

[marxin]

Maybe that test has been broken since the beginning but hadn't been executed until the recent change to the cmakefile. Can you share the executable file with me?

Sure.
ppc64.out.gz

[rui314]

Thanks. PPC64 .text segment contains not only code but also data, so it wasn't compatible with -execute-only.

[marxin]

Good, thanks for the investigation.