[Sbcl-devel] Tracing internal SBCL packages

[Deepak S. <dm...@gm...>]

Hi,

I tried to trace an internal SBCL package.

(trace "SB-IMPL")

It gives control stack overflow error.

INFO: Control stack guard page unprotected
CORRUPTION WARNING in SBCL pid 22057(tid 2953318400):

Alternatively, I tried redefining internal SBCL package functions
after unlocking package. It causes binding stack exhausted error.

Next option I tried is to add trace statements to lambda-guts
inside code/defboot.lisp. This is something I tried

Changed from:
---------------------
(lambda-guts `(,args
                          ,@decls
                          (block ,(fun-name-block-name name)
                            ,@forms)))

to:
---

(lambda-guts `(,args
                          ,@decls
                          (block ,(fun-name-block-name name)
                            ;insert trace statement here
                            ,@forms)))

where trace-statement is either a print, format or /show0 call
but all result in failed builds.

Really appreciate if someone can help about tracing internal sbcl packages?

I have tried the SBCL build process pdf (C Rhodes) and reading through
compier internals docs, but could not find the solution.

Thanks in advance.

-- 
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