ASSERT -prof_pcs on ARM

[toshipiazza]

When running a client which inserts any clean call with -prof_pcs on ARM, I see the following assertion:

(xenial)piazzt@localhost:/tmp/dynamorio-master$ ./bin32/drrun -debug -prof_pcs -c ./api/bin/libinscount.so -- true
<Starting application /bin/true (19351)>
...
Client inscount is running
<Application /bin/true (19351).  Internal Error: DynamoRIO debug check failure: Not implemented @/home/piazzt/SD/Build/dynamorio-master/core/arch/instr_shared.c:3088 (0)
(Error occurred @0 frags)
version 7.0.17614, custom build
-no_dynamic_options -prof_pcs -client_lib '/tmp/dynamorio-master/api/bin/libinscount.so;0;' -code_api -stack_size 56K -signal_stack_size 32K -max_elide_jmp 0 -max_elide_call 0 -early_inject -emulate_brk -no_inline_ignored_syscalls -native_exec_default_list '' -no_native_exec_managed_code -no_indcall2direct
/tmp/dynamorio-master/api/bin/libinscount.so=0xb493a000
/usr/lib/arm-linux-gnueabihf/libstdc++.so.6=0xb479a000
/lib/arm-linux-gnueabihf/libgcc_s.so.1=0xb4606000
/lib/arm-linux-gnueabihf/libm.so.6=0xb4721000
/lib/arm-linux-gnueabihf/libc.so.6=0xb4634000
/lib/ld-linux-armhf.so.3=0xb48f7000
/tmp/dynamorio-master/ext/lib32/debug/libdrmgr.so=0xb4921000>