Hi Ted, Thank you for the answer. I'm not sure I understand you well. It seems to me that my program call "Disassembler::FindPlugin" with the "m_options.arch" set to "x86_64". But my toolchain does not contain a LLVM supporting x86_64, so it feels normal to me that it is not able to create this disassembler. What is weird is that the first time I'm executing it, it managed to do so.
I also have kind of the same issue with breakpoint. It's like if I'm missing the debug information after I do the "run" command: (lldb) file test Current executable set to 'test' (dpu). (lldb) b main Breakpoint 1: where = test`main + 24 at test.c:8, address = 0x80000078 (lldb) r Process 21312 launched: '/home/rjodin/work/dpu_tools/llvm/lldb/test/test' (dpu) Process 21312 stopped * thread #1, name = 'DPUthread0', stop reason = Thread finished frame #0: 0x00000000800000c0 (lldb) b main Breakpoint 2: no locations (pending). WARNING: Unable to resolve breakpoint to any actual locations. When I'm doing the disassembly, I can manage to disassemble if I add the option with my architecture to the command line, but as you can see below, I also do not have the debug information that I had at the first disassembly: (lldb) file test Current executable set to 'test' (dpu). (lldb) dis -s 0x80000000 test`__bootstrap: test[0x80000000] <+0>: jnz id, 0x80000020 test[0x80000008] <+8>: move r0, 0xff test[0x80000010] <+16>: release r0, 0x0, nz, 0x80000018 test[0x80000018] <+24>: sub r0, r0, 0x1, pl, 0x80000010 (lldb) r Process 21312 launched: '/home/rjodin/work/dpu_tools/llvm/lldb/test/test' (dpu) Process 21312 stopped * thread #1, name = 'DPUthread0', stop reason = Thread finished frame #0: 0x00000000800000a0 (lldb) dis -s 0x80000000 error: Unable to find Disassembler plug-in for the 'x86_64' architecture. (lldb) dis -s 0x80000000 -A dpu 0x80000000: jnz id, 0x80000020 0x80000008: move r0, 0xff 0x80000010: release r0, 0x0, nz, 0x80000018 0x80000018: sub r0, r0, 0x1, pl, 0x80000010 Any ideas about it? Thanks, Romaric On Wed, Jun 12, 2019 at 6:55 PM Ted Woodward <tedw...@quicinc.com> wrote: > The error is coming from source/Commands/CommandObjectDisassemble.cpp . > It’s not able to create the disassembler for your architecture. The call to > Disassembler::FindPlugin fails. > > My guess is something in the call to MCDisasmInstance::Create in > source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp is failing. Step > through that and make sure everything there is working. > > > > Ted > > > > *From:* lldb-dev <lldb-dev-boun...@lists.llvm.org> *On Behalf Of *Romaric > Jodin via lldb-dev > *Sent:* Wednesday, June 12, 2019 8:23 AM > *To:* lldb-dev@lists.llvm.org > *Subject:* [EXT] [lldb-dev] Disassembling issue > > > > Hi everyone, > > > > I'm trying to have lldb being able to debug my architecture. It does it > well after loading my elf. But then I run it, stop it in middle, try to > disassemble and at that point it seems that I lost some information about > my architecture. lldb tries to disassemble it for x86, which in not > possible with my toolchain. > > > > Here is a log of what I am doing: > > > > (lldb) file test > > Current executable set to 'test' (dpu). > > (lldb) dis -s 0x80000000 > > test`__bootstrap: > > test[0x80000000] <+0>: jnz id, 0x80000020 > > test[0x80000008] <+8>: move r0, 0xff > > test[0x80000010] <+16>: release r0, 0x0, nz, 0x80000018 > > test[0x80000018] <+24>: sub r0, r0, 0x1, pl, 0x80000010 > > (lldb) r > > Process 21312 launched: '/home/rjodin/work/dpu_tools/llvm/lldb/test/test' > (dpu) > > Process 21312 stopped > > * thread #1, name = 'DPUthread0', stop reason = Thread stopped > > frame #0: 0x0000000080000090 > > (lldb) dis -s 0x80000000 > > error: Unable to find Disassembler plug-in for the 'x86_64' architecture. > > (lldb) > > > > Any ideas of what I am missing in my implementation? > > Thanks, > > -- > > *Romaric JODIN* > > UPMEM > > *Software Engineer* > > > > -- *Romaric JODIN* UPMEM *Software Engineer*
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