• Aleksey Gorelov (30/30) May 18 I am trying to debug on windows.
• Aleksey Gorelov (20/20) May 18 The dub build with --verbose option generates the output
• user1234 (6/36) May 25 - in the json, try `dflags-ldc2` instead of `dflags`

Aleksey Gorelov <ustrobot gmail.com> writes:

I am trying to debug on windows.

A simple hello world app compiled with
```
"c:\D\ldc2-1.38.0-windows-x64\bin\ldc2.exe" -gdwarf -O0 app.d
```

has debug symbols.

But the same app compiled with
```
  dub  build  -b debug 
--compiler="c:\D\ldc2-1.38.0-windows-x64\bin\ldc2.exe"  --force 
--root ../..
```
and dub.json
```
{
	"name" : "testd1",
	"description" : "Hello World - A minimal DUB bundle.",
	"dependencies" : {
	},
	"dflags": ["-gdwarf", "-O0", "-d-debug"]
}
```

has NO debug symbols. gdb reports
```
Reading symbols from ./testd1.exe...
(No debugging symbols found in ./testd1.exe)
```

If add additional option `-vv` to `dflags` the it is visible that 
ldc2 receives the `gdwarf` option. Probably the dub does some 
thing wrong? Or I am wrong. :-(

Aleksey Gorelov <ustrobot gmail.com> writes:

The dub build with --verbose option generates the output
```
Generating using build
Configuring dependent testd1, deps:
Performing "debug" build using 
c:\D\ldc2-1.38.0-windows-x64\bin\ldc2.exe for x86_64.
testd1 ~master: building configuration "application"...
c:\D\ldc2-1.38.0-windows-x64\bin\ldc2.exe -gdwarf -O0 -c 
-ofapplication-debug-windows-x86_64-ldc_v1.38.0-6D670FD1992E8FC1
1A1557D635DBD69E\testd1.obj -d-debug -g -w --oq 
-od=application-debug-windows-x86_64-ldc_v1.38.0-6D670FD1992E8FC11A1557D6
35DBD69E\/obj -d-version=Have_testd1 -IC:\TestD1\src 
C:\TestD1\src\app.d -vcolumns
Linking...
c:\D\ldc2-1.38.0-windows-x64\bin\ldc2.exe 
-ofapplication-debug-windows-x86_64-ldc_v1.38.0-6D670FD1992E8FC11A1557D635DBD69
E\testd1.exe 
application-debug-windows-x86_64-ldc_v1.38.0-6D670FD1992E8FC11A1557D
35DBD69E\testd1.obj -g

```

Still unclear what is wrong.

user1234 <user1234 12.de> writes:

On Saturday, 18 May 2024 at 22:57:23 UTC, Aleksey Gorelov wrote:
 I am trying to debug on windows.

 A simple hello world app compiled with
 ```
 "c:\D\ldc2-1.38.0-windows-x64\bin\ldc2.exe" -gdwarf -O0 app.d
 ```

 has debug symbols.

 But the same app compiled with
 ```
  dub  build  -b debug 
 --compiler="c:\D\ldc2-1.38.0-windows-x64\bin\ldc2.exe"  --force 
 --root ../..
 ```
 and dub.json
 ```
 {
 	"name" : "testd1",
 	"description" : "Hello World - A minimal DUB bundle.",
 	"dependencies" : {
 	},
 	"dflags": ["-gdwarf", "-O0", "-d-debug"]
 }
 ```

 has NO debug symbols. gdb reports
 ```
 Reading symbols from ./testd1.exe...
 (No debugging symbols found in ./testd1.exe)
 ```

 If add additional option `-vv` to `dflags` the it is visible 
 that ldc2 receives the `gdwarf` option. Probably the dub does 
 some thing wrong? Or I am wrong. :-(

- in the json, try `dflags-ldc2` instead of `dflags`
- try not to use the debug build but a custom one

I suspect that `-g` passed (automatically) after `-gdwarf` would 
have for effect to cancel the effect of the first, so maybe a 
ldc2 CLI bug.