Re: pkg/57708: rust problem when building firefox

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

The following reply was made to PR pkg/57708; it has been noted by GNATS.

From: Taylor R Campbell <riastradh%NetBSD.org@localhost>
To: he%NetBSD.org@localhost
Cc: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost
Subject: Re: pkg/57708: rust problem when building firefox
Date: Sun, 19 Nov 2023 20:54:57 +0000

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 > Date: Sun, 19 Nov 2023 20:52:17 +0000
 > From: Taylor R Campbell <riastradh%NetBSD.org@localhost>
 > 
 > The attached program [...]
 
 actually attached now.
 
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 Content-Type: text/plain; charset="ISO-8859-1"; name="guard"
 Content-Transfer-Encoding: quoted-printable
 Content-Disposition: attachment; filename="guard.c"
 
 #include <err.h>
 #include <pthread.h>
 #include <stdio.h>
 
 static void
 showstack(const char *who)
 {
 	pthread_attr_t attr;
 	void *stackaddr, *guardaddr;
 	size_t stacksize, guardsize;
 	int error;
 
 	error =3D pthread_getattr_np(pthread_self(), &attr);
 	if (error)
 		errc(1, error, "pthread_getattr_np");
 
 	error =3D pthread_attr_getstack(&attr, &stackaddr, &stacksize);
 	if (error)
 		errc(1, error, "pthread_attr_getstack");
 	error =3D pthread_attr_getguardsize(&attr, &guardsize);
 	if (error)
 		errc(1, error, "pthread_attr_getguardsize");
 
 	error =3D pthread_attr_destroy(&attr);
 	if (error)
 		errc(1, error, "pthread_attr_destroy");
 
 #ifdef __MACHINE_STACK_GROWS_UP
 	guardaddr =3D (char *)stackaddr + stacksize - guardsize;
 #else
 	guardaddr =3D stackaddr;
 #endif
 
 	printf("%s: stack %zu/0x%zx bytes @ [%p, %p)\n",
 	    who, stacksize, stacksize,
 	    stackaddr, (char *)stackaddr + stacksize);
 	printf("%s: guard %zu/0x%zx bytes @ [%p, %p)\n",
 	    who, guardsize, guardsize,
 	    guardaddr, (char *)guardaddr + guardsize);
 }
 
 static void *
 start(void *cookie)
 {
 
 	showstack("pthread_create");
 	return cookie;
 }
 
 int
 main(void)
 {
 	pthread_t t;
 	int error;
 
 	showstack("main thread");
 	fflush(stdout);
 
 	error =3D pthread_create(&t, NULL, &start, NULL);
 	if (error)
 		errc(1, error, "pthread_create");
 	error =3D pthread_join(t, NULL);
 	if (error)
 		errc(1, error, "pthread_join");
 
 	fflush(stdout);
 	return ferror(stdout);
 }
 
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