Unable to find GDB in default search path and /usr/local/bin/lldb-9

[sochooligan]

When I use CMake Tools's Debug It says "Unable to find GDB in default search path and /usr/local/bin/lldb-9."
I don't know where to set gdb path for the CMake Tools Plugin. I think this is an issue.

My Env:

macos: 10.15.3
Xcode: 11.3.1
/usr/local/opt/llvm/bin/lldb -v: 9.0.0
cmake: 3.15.3
make:4.3
gdb: 8.3
g++: 9.2.0_3
vs code: 1.42.0
cmake tools: 1.3.0

When I add in settings.json:
"cmake.debugConfig": {
"MIMode": "gdb",
"miDebuggerPath": "/usr/local/bin/gdb",
}
it does not take effect.

[andreeis]

On Windows and Ubuntu I am not able to get any "cmake.debugConfig" settings to be ignored. I will try on MAC shortly, although I don't think something may reproduce only because of this.
I wonder what else is specific to your situation.
You tried CMake Tools 1.3.0, right?

[sochooligan]

On Windows and Ubuntu I am not able to get any "cmake.debugConfig" settings to be ignored. I will try on MAC shortly, although I don't think something may reproduce only because of this.
I wonder what else is specific to your situation.
You tried CMake Tools 1.3.0, right?

Reply:

1. The Output When I pushed CMake Tool's Debug button located on the middle bottom of Vs Code:

---

[build] Starting build
[proc] Executing command: /usr/local/bin/cmake --build /Users/jzwang/Documents/localrepos/codes/CppCmakeGettingStarted/build --config Debug --target CppCmakeGettingStarted -- -j 6
[build] make[1]: Entering directory '/Users/Documents/localrepos/codes/CppCmakeGettingStarted/build'
[build] make[2]: Entering directory '/Users/Documents/localrepos/codes/CppCmakeGettingStarted/build'
[build] make[3]: Entering directory '/Users/Documents/localrepos/codes/CppCmakeGettingStarted/build'
[build] make[3]: Leaving directory '/Users/Documents/localrepos/codes/CppCmakeGettingStarted/build'
[build] [100%] Built target CppCmakeGettingStarted
[build] make[2]: Leaving directory '/Users/Documents/localrepos/codes/CppCmakeGettingStarted/build'
[build] make[1]: Leaving directory '/Users/Documents/localrepos/codes/CppCmakeGettingStarted/build'
[build] Build finished with exit code 0
[proc] Executing command: /usr/local/bin/lldb-9 --version

I don't know what the last message means. I have no "/usr/local/bin/lldb-9".

2. I installed only two plugs which is C/C++ 0.2.6.3 and CMake Tools 1.3.0. I just test a simple CMakeLists.txt of a practice C++ project. I have /usr/local/bin/gdb, /usr/bin/lldb on my macos.

---

3. I tried CMake Tools 1.3.0, 1.1.3.

---

[sochooligan]

Finally, I find the lldb path in macOS is: /usr/local/opt/llvm/bin.

(1) create a soft link: lldb-9 -> /usr/local/opt/llvm/bin/lldb
(2) set cmake.debugConfig as #506 @FelikZ

Now, I can use CMake Tools's Debug, but it can't break as known.(https://stackoverflow.com/questions/58329611/vscode-macos-catalina-doesnt-stop-on-breakpoints-on-c-c-debug)

[sochooligan]

Make CMake Tools Debug BREAKSTOP Success on Xcode 11.3.1!!!

Question:

We have lldb under /Applications/Xcode.app/Contents/Developer/usr/bin/, but we don't have lldb-mi.

Solution:

Compile lldb-mi for Xcode 11.3.1

Steps:

(1) sudo vim /etc/paths
/usr/local/Cellar/llvm/9.0.0/bin
/usr/bin
/usr/local/bin
/bin
/usr/sbin
/sbin
notes: /usr/bin before /usr/local/bin so when step(3) compile lldb-mi will use /usr/bin/clang tools)
(2) git clone https://github.com/lldb-tools/lldb-mi.git
(3) cd lldb-mi
cmake .
cmake --build .
(4) sudo cp ./src/lldb-mi /Applications/Xcode.app/Contents/Developer/usr/bin/

Set soft link(no need to set cmake.debugConfig anymore)

cd /usr/local/bin
ln -s /Applications/Xcode.app/Contents/Developer/usr/bin/lldb-mi lldb-9

Others:

Because I Use g++ under /usr/local/bin/, so after compiling, I modified /etc/paths as:
/usr/local/bin
/usr/bin
/bin
/usr/sbin
/sbin

refs:

https://forums.developer.apple.com/thread/125482
https://github.com/lldb-tools/lldb-mi

[bobbrow]

Unfortunately Apple doesn't distribute lldb-mi anymore. The cpptools extension is almost ready to start distributing a copy of it with the extension. At that point we can start pointing to that one by default.

[sochooligan]

Unfortunately Apple doesn't distribute lldb-mi anymore. The cpptools extension is almost ready to start distributing a copy of it with the extension. At that point we can start pointing to that one by default.
#1060 (comment)

[bobbrow]

I believe I have a fix for this in PR #1102

[andreeis]

CMake Tools 1.4.0 Beta is available on GitHub.
https://github.com/microsoft/vscode-cmake-tools/releases/tag/1.4.0-beta

Please try it out and let us know if you encounter any issues.

[andreeis]

This fix is available in CMake Tools #1.4.0 which has been released.

[EzioZz]

How to configure if I need to compile the program using GCC and debug with GDB.
"cmake.debugConfig": {
"MIMode": "gdb",
"miDebuggerPath": "/usr/local/bin/gdb"
}
using the configuration above the debugger doesn't go to the breakpoint.

[andreeis]

That should work. Double check if the source code file where you want to hit the breakpoint is compiled with debug information (-g flag). As an experiment, also add "stopAtEntry" inside cmake.debugConfig and set it to true, see if that generates any breakpoint hit at startup.

[BH1SCW]

Make CMake Tools Debug BREAKSTOP Success on Xcode 11.3.1!!!

Question:

We have lldb under /Applications/Xcode.app/Contents/Developer/usr/bin/, but we don't have lldb-mi.

Solution:

Compile lldb-mi for Xcode 11.3.1

Steps:

(1) sudo vim /etc/paths /usr/local/Cellar/llvm/9.0.0/bin /usr/bin /usr/local/bin /bin /usr/sbin /sbin notes: /usr/bin before /usr/local/bin so when step(3) compile lldb-mi will use /usr/bin/clang tools) (2) git clone https://github.com/lldb-tools/lldb-mi.git (3) cd lldb-mi cmake . cmake --build . (4) sudo cp ./src/lldb-mi /Applications/Xcode.app/Contents/Developer/usr/bin/

Set soft link(no need to set cmake.debugConfig anymore)

cd /usr/local/bin ln -s /Applications/Xcode.app/Contents/Developer/usr/bin/lldb-mi lldb-9

Others:

Because I Use g++ under /usr/local/bin/, so after compiling, I modified /etc/paths as: /usr/local/bin /usr/bin /bin /usr/sbin /sbin

refs:

https://forums.developer.apple.com/thread/125482 https://github.com/lldb-tools/lldb-mi

works for me , Great thanks~