instrumened so cannot generate prof.fdata

[zhouyu0502]

I have libc.so.6(with relation and debug info arm64 ) and i want to instrument it
llvm-bolt libc.so.6 --instrument --instrumentation-sleep-time=30 --o libc.so.proc.instr.30s.so.6
however i found that it can work on arm64 device but it can not generata /tmp/prof.fdata(i check this dir is writeable)

i think it maybe many processed use libc.so.6 so it cannot generata prof file

is there any way to fix this

[llvmbot]

@llvm/issue-subscribers-bolt

Author: None (zhouyu0502)

I have libc.so.6(with relation and debug info arm64 ) and i want to instrument it `llvm-bolt libc.so.6 --instrument --instrumentation-sleep-time=30 --o libc.so.proc.instr.30s.so.6` however i found that it can work on arm64 device but it can not generata /tmp/prof.fdata(i check this dir is writeable)

i think it maybe many processed use libc.so.6 so it cannot generata prof file

is there any way to fix this

[vleonen]

#167467 should have fixed this issue please check