/bin/ls, /bin/cat/, /bin/... - raising doesn't work at all.

[mitp0sh]

Hello,

I have build everything according to the github instructions (I did use the right LLVM version). I build everything on Ubuntu 20. My mctoll checkout was based on following commit:

ff877f4

I have tried to raise any binary from /bin/* but it doesn't work. I always get following error:

`test@ubuntu:~/Desktop/llvm-project/build/bin$ ./llvm-mctoll -print-after-all -d /bin/cat

; /bin/cat: file format elf64-x86-64

Disassembling section

Function :
Parsed MCInst List
Generated CFG
llvm-mctoll: /home/test/Desktop/llvm-project/llvm/tools/llvm-mctoll/X86/X86JumpTables.cpp:259: bool X86MachineInstructionRaiser::raiseMachineJumpTable(): Assertion JmpTblBaseCalcMBBTermInst != nullptr && "Branch instruction terminating basic block computing jump table " "base not found"' failed. #0 0x000055f3cc99ca7e llvm::sys::PrintStackTrace(llvm::raw_ostream&) (./llvm-mctoll+0xf80a7e) #1 0x000055f3cc99a9e4 llvm::sys::RunSignalHandlers() (./llvm-mctoll+0xf7e9e4) #2 0x000055f3cc99ab28 SignalHandler(int) (./llvm-mctoll+0xf7eb28) #3 0x00007f04633e33c0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0) #4 0x00007f0462ed518b raise /build/glibc-YYA7BZ/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1 #5 0x00007f0462eb4859 abort /build/glibc-YYA7BZ/glibc-2.31/stdlib/abort.c:81:7 #6 0x00007f0462eb4729 get_sysdep_segment_value /build/glibc-YYA7BZ/glibc-2.31/intl/loadmsgcat.c:509:8 #7 0x00007f0462eb4729 _nl_load_domain /build/glibc-YYA7BZ/glibc-2.31/intl/loadmsgcat.c:970:34 #8 0x00007f0462ec5f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36) #9 0x000055f3cc9bd35e X86MachineInstructionRaiser::raiseMachineJumpTable() (./llvm-mctoll+0xfa135e) #10 0x000055f3cc9c8430 X86MachineInstructionRaiser::getRaisedFunctionPrototype() (./llvm-mctoll+0xfac430) #11 0x000055f3cbc8d8e2 ModuleRaiser::runMachineFunctionPasses() (./llvm-mctoll+0x2718e2) #12 0x000055f3cbc4fb48 DisassembleObject(llvm::object::ObjectFile const*, bool) (.constprop.0) (./llvm-mctoll+0x233b48) #13 0x000055f3cbc0758c main (./llvm-mctoll+0x1eb58c) #14 0x00007f0462eb60b3 __libc_start_main /build/glibc-YYA7BZ/glibc-2.31/csu/../csu/libc-start.c:342:3 #15 0x000055f3cbc3c82e _start (./llvm-mctoll+0x22082e) PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace. Stack dump: 0. Program arguments: ./llvm-mctoll -print-after-all -d /bin/cat Aborted (core dumped)
Any other binary, than cat will result in a similar looking core dump.

Is this know behaviour? What can I do to make it work?

mitp0sh

[thatreguy]

With /bin/echo I trigger a different assertion:

root@ubuntu-s-1vcpu-1gb-amd-sgp1-01:~/llvm-project# build/bin/llvm-mctoll -d /bin/echo
llvm-mctoll: /root/llvm-project/llvm/include/llvm/CodeGen/MachineInstr.h:500: const llvm::MachineOperand& llvm::MachineInstr::getOperand(unsigned int) const: Assertion `i < getNumOperands() && "getOperand() out of range!"' failed.
 #0 0x00005632719e3d00 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (.localalias) /root/llvm-project/llvm/lib/Support/Unix/Signals.inc:565:22
 #1 0x00005632719e3dbb PrintStackTraceSignalHandler(void*) /root/llvm-project/llvm/lib/Support/Unix/Signals.inc:632:1
 #2 0x00005632719e1a27 llvm::sys::RunSignalHandlers() (.localalias) /root/llvm-project/llvm/lib/Support/Signals.cpp:97:20
 #3 0x00005632719e364c SignalHandler(int) /root/llvm-project/llvm/lib/Support/Unix/Signals.inc:407:1
 #4 0x00007fabbb4c03c0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #5 0x00007fabbaf6518b raise /build/glibc-eX1tMB/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #6 0x00007fabbaf44859 abort /build/glibc-eX1tMB/glibc-2.31/stdlib/abort.c:81:7
 #7 0x00007fabbaf44729 get_sysdep_segment_value /build/glibc-eX1tMB/glibc-2.31/intl/loadmsgcat.c:509:8
 #8 0x00007fabbaf44729 _nl_load_domain /build/glibc-eX1tMB/glibc-2.31/intl/loadmsgcat.c:970:34
 #9 0x00007fabbaf55f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
#10 0x0000563270327f9d llvm::MachineInstr::getOperand(unsigned int) const /root/llvm-project/llvm/include/llvm/CodeGen/MachineInstr.h:500:5
#11 0x0000563270326c6e MCInstRaiser::getMCInstIndex(llvm::MachineInstr const&) const (.localalias) /root/llvm-project/llvm/tools/llvm-mctoll/MCInstRaiser.cpp:302:53
#12 0x00005632703269c3 MCInstRaiser::getMBBNumberOfMCInstOffset(unsigned long, llvm::MachineFunction&) const /root/llvm-project/llvm/tools/llvm-mctoll/MCInstRaiser.cpp:264:41
#13 0x0000563271a2b90f X86MachineInstructionRaiser::raiseMachineJumpTable() /root/llvm-project/llvm/tools/llvm-mctoll/X86/X86JumpTables.cpp:102:56
#14 0x0000563271a3caad X86MachineInstructionRaiser::getRaisedFunctionPrototype() /root/llvm-project/llvm/tools/llvm-mctoll/X86/X86FuncPrototypeDiscovery.cpp:192:7
#15 0x000056327031d891 ModuleRaiser::runMachineFunctionPasses() /root/llvm-project/llvm/tools/llvm-mctoll/ModuleRaiser.cpp:108:69
#16 0x00005632701d7a89 DisassembleObject(llvm::object::ObjectFile const*, bool) /root/llvm-project/llvm/tools/llvm-mctoll/llvm-mctoll.cpp:1420:38
#17 0x00005632701d8538 DumpObject(llvm::object::ObjectFile*, llvm::object::Archive const*) /root/llvm-project/llvm/tools/llvm-mctoll/llvm-mctoll.cpp:1492:1
#18 0x00005632701d8b76 DumpInput(llvm::StringRef) /root/llvm-project/llvm/tools/llvm-mctoll/llvm-mctoll.cpp:1552:19
#19 0x00005632701ebeb6 void (*std::for_each<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, void (*)(llvm::StringRef)>(__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, void (*)(llvm::StringRef)))(llvm::StringRef) /usr/include/c++/9/bits/stl_algo.h:3875:33
#20 0x00005632701d8f75 main /root/llvm-project/llvm/tools/llvm-mctoll/llvm-mctoll.cpp:1619:10
#21 0x00007fabbaf460b3 __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:342:3
#22 0x00005632701d1c7e _start (build/bin/llvm-mctoll+0x961c7e)

*** Please submit an issue at https://github.com/microsoft/llvm-mctoll
*** along with a back trace and a reproducer, if possible.
Stack dump:
0.      Program arguments: build/bin/llvm-mctoll -d /bin/echo
Aborted (core dumped)

[dominictarr]

also got this