[R-SIG-Mac] incompatible lldb on mojave?

[Vincent Carey]

I'd like to make use of material in

https://kevinushey.github.io/blog/2015/04/13/debugging-with-lldb/

But with R 4.0 I get

%vjcair> R -d lldb

(lldb) target create "/Library/Frameworks/R.framework/Resources/bin/exec/R"

Current executable set to
'/Library/Frameworks/R.framework/Resources/bin/exec/R' (x86_64).

(lldb) run

error: process exited with status -1 (Error 1)

(lldb) quit

%vjcair> which lldb

/usr/bin/lldb

%vjcair> lldb --version

lldb-1100.0.30.12

Apple Swift version 5.1.3 (swiftlang-1100.0.282.1 clang-1100.0.33.15)


with gdb, there is a little more info -- and a peculiar warning that
mentions /Volumes/Builds/Simon/R4/h ...


%vjcair> R -d gdb

GNU gdb (GDB) 8.1

Copyright (C) 2018 Free Software Foundation, Inc.

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html
>

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.  Type "show copying"

and "show warranty" for details.

This GDB was configured as "x86_64-apple-darwin16.7.0".

Type "show configuration" for configuration details.

For bug reporting instructions, please see:

<http://www.gnu.org/software/gdb/bugs/>.

Find the GDB manual and other documentation resources online at:

<http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".

Type "apropos word" to search for commands related to "word"...

Reading symbols from /Library/Frameworks/R.framework/Resources/bin/exec/R...

warning:
`/Volumes/Builds/Simon/R4/high-sierra-x86_64/R-4.0-branch/src/main/Rmain.o':
can't open to read symbols: No such file or directory.

(no debugging symbols found)...done.

(gdb) run

Starting program:
/Library/Frameworks/R.framework/Versions/4.0/Resources/bin/exec/R

Unable to find Mach task port for process-id 59032: (os/kern) failure (0x5).

 (please check gdb is codesigned - see taskgated(8))

> sessionInfo()

R version 4.0.0 Patched (2020-04-27 r78309)

Platform: x86_64-apple-darwin17.0 (64-bit)

Running under: macOS Mojave 10.14.6


Matrix products: default

BLAS:
/Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.dylib

LAPACK:
/Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib

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