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This repository contains the source code for various .NET Core runtime diagnostic tools and documents.
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Failed to find runtime module (libcoreclr.so), 0x80070057 #1462

Closed mrj001 closed 4 years ago

mrj001 commented 4 years ago

I've created a Hello World self contained app.

$ lldb HelloWorld
Added Microsoft public symbol server
(lldb) target create "HelloWorld"
Current executable set to '/Users/mj/Documents/develop/runtime.issues/SelfContained/HelloWorld/bin/Debug/net5.0/osx-x64/HelloWorld' (x86_64).
(lldb) process launch -s
Process 44203 stopped
* thread #1, stop reason = signal SIGSTOP
    frame #0: 0x0000000100019000 dyld`_dyld_start
dyld`_dyld_start:
->  0x100019000 <+0>: popq   %rdi
    0x100019001 <+1>: pushq  $0x0
    0x100019003 <+3>: movq   %rsp, %rbp
    0x100019006 <+6>: andq   $-0x10, %rsp
Target 0: (HelloWorld) stopped.
Process 44203 launched: '/Users/mj/Documents/develop/runtime.issues/SelfContained/HelloWorld/bin/Debug/net5.0/osx-x64/HelloWorld' (x86_64)
(lldb) sos DumpAssembly
Failed to find runtime module (libcoreclr.dylib), 0x80070057
Extension commands need it in order to have something to do.
For more information see https://go.microsoft.com/fwlink/?linkid=2135652
DumpAssembly  failed
(lldb) target modules list
[  0] 1F0D413F-0759-31D3-93B8-E49CC2125AEA 0x0000000100000000 /Users/mj/Documents/develop/runtime.issues/SelfContained/HelloWorld/bin/Debug/net5.0/osx-x64/HelloWorld 
[  1] F9D4DEDC-8296-3E3F-B517-9C8B89A4C094 0x0000000100018000 /usr/lib/dyld 
(lldb) quit
Quitting LLDB will kill one or more processes. Do you really want to proceed: [Y/n] Y
$ ll libcoreclr.dylib
-rwxr--r--  1 mj  staff  6791092 15 Jul 06:29 libcoreclr.dylib

As shown by the ll at the end, the lib coreclr.dylib is present in the folder alongside the target, but not loaded.

$ dotnet --info
.NET SDK (reflecting any global.json):
 Version:   5.0.100-preview.8.20362.3
 Commit:    a5c8f426c2

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.15
 OS Platform: Darwin
 RID:         osx.10.15-x64
 Base Path:   /Users/mj/Documents/develop/runtime/.dotnet/sdk/5.0.100-preview.8.20362.3/

Host (useful for support):
  Version: 5.0.0-preview.8.20361.2
  Commit:  f37dd6fc85

.NET SDKs installed:
  5.0.100-preview.8.20362.3 [/Users/mj/Documents/develop/runtime/.dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 5.0.0-preview.8.20360.11 [/Users/mj/Documents/develop/runtime/.dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 5.0.0-preview.8.20361.2 [/Users/mj/Documents/develop/runtime/.dotnet/shared/Microsoft.NETCore.App]

To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download
mikem8361 commented 4 years ago

libcoreclr.so needs to be loaded before any SOS commands will work.

mrj001 commented 4 years ago

@mikem8361, yes. The problem is that it did not load for a self-contained app, despite being present alongside the self-contained app. When the app is not self-contained, it loads automatically, and SOS commands work.

mikem8361 commented 4 years ago

The problem is that "process launch -s" stops before any other modules are loaded other than HelloWorld.

mikem8361 commented 4 years ago

Setting a managed bp with "bpmd" on Main is the best way to get to a place where SOS works but I see from issue #1464 that isn't working for you. I'll investigate that, but where you stop in this issue isn't supported.

mrj001 commented 4 years ago

@mikaelm12 Thanks. I was just going to ask how to get SOS loaded. Closing this issue due to "not supported".