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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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4
libguile/continuations.c
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@ -109,7 +109,7 @@ scm_i_print_continuation (SCM obj, SCM port, scm_print_state *state SCM_UNUSED)
scm_puts ("#<continuation ", port);
scm_intprint (continuation->num_stack_items, 10, port);
scm_puts (" @ ", port);
scm_uintprint (SCM_UNPACK (obj), 16, port);
scm_uintprint (scm_gc_object_address (SCM_I_CURRENT_THREAD, obj), 16, port);
scm_putc ('>', port);
return 1;
}
@ -128,7 +128,7 @@ pin_conservative_roots (scm_thread *thread, void *base, size_t size)
struct gc_ref ref = gc_resolve_conservative_ref (heap, maybe_ref, 0);
if (!gc_ref_is_null (ref))
gc_pin_object (mut, ref);
}
}
}
/* James Clark came up with this neat one instruction fix for