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scm_gc_object_address pins its referent

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* libguile/gc.h:
* libguile/gc.c (scm_gc_pin_object): New function.
(scm_gc_object_address): New function, to be used instead of SCM_UNPACK
when an object's address is exposed, for example via hashq.
* libguile/atomic.c:
* libguile/cache-internal.h:
* libguile/continuations.c:
* libguile/dynstack.c:
* libguile/dynstack.h:
* libguile/ephemerons.c:
* libguile/exceptions.c:
* libguile/finalizers.c:
* libguile/fluids-internal.h:
* libguile/fluids.c:
* libguile/foreign.c:
* libguile/frames.c:
* libguile/hash.c:
* libguile/hashtab.c:
* libguile/intrinsics.c:
* libguile/memoize.c:
* libguile/print.c:
* libguile/programs.c:
* libguile/smob.c:
* libguile/struct.c:
* libguile/struct.h:
* libguile/variable.c:
* libguile/vm.c: Use the new functions everywhere that is needed.
Because they take a thread, sometimes we have to do some extra plumbing.
This commit is contained in:
Andy Wingo 2025-06-26 15:00:22 +02:00
parent b0ce014801
commit a7d7ff5019
25 changed files with 133 additions and 117 deletions
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5
libguile/exceptions.c
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@ -156,8 +156,7 @@ scm_c_with_exception_handler (SCM type, scm_t_exception_handler handler,
mra,
&registers);
scm_dynstack_push_fluid (dynstack, exception_handler_fluid,
scm_cons (prompt_tag, type),
dynamic_state);
scm_cons (prompt_tag, type), t);
if (setjmp (registers))
{
@ -182,7 +181,7 @@ scm_c_with_exception_handler (SCM type, scm_t_exception_handler handler,
SCM res = thunk (thunk_data);
scm_dynstack_unwind_fluid (dynstack, dynamic_state);
scm_dynstack_unwind_fluid (dynstack, t);
scm_dynstack_pop (dynstack);
return res;