Re: Building for release or debug

[Chet Ramey]

On 5/10/22 9:42 AM, Robert E. Griffith wrote:
> Does the bash build system support building optimized for debug and
> release?  How would I invoke them?

You can control them with CFLAGS. The default CFLAGS as distributed is
"-g -O2".

> I find that doing "./configure; make" with no parameters builds bash with
> debug symbols but in the debugger (gdb inside atom editor with the dbg-gdb
> plugin), many interesting variables are marked "optimized out" so I wonder
> if I can build the project differently to make it more conducive to debugging.

There's no `debug' target, but if I want to debug, I build with CFLAGS=-g.

> On a different but related note, when I build my loadable builtin against
> the headers and loadables/makefile.inc from the ubuntu bash-builtin
> package. I still get symbols in my .so. Is there an option that I can
> specify to make that will build a release version?

So by a `release' version you mean a version without symbols? Use CFLAGS.
If you want to strip as many debugging symbols as you can, use
CFLAGS="-O2 -s" -- which might be overkill for a shared object -- or look
at some of the options to `strip'.


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/