From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] more on why vc can't produce amd64 executables
Date: Wed, 21 Aug 2013 15:29:27 -0400 [thread overview]
Message-ID: <e7587c5d66f48bc51ee0af8f7852c7b8@brasstown.quanstro.net> (raw)
In-Reply-To: <0A2E2FB2-B2F1-444E-AF62-85FAC05335EA@bitblocks.com>
> How %p is treated is really upto the implementation but
> it should not crash since p is never dereferenced. Does
> this work?
>
> uintptr q;
> print("%p", q);
no. if i change the print to print an integer, it still fails.
in fact, it's really the indirect call in print that fails.
this is the instruction
CALL *AX
acid; *AX
0x002014b300000000
acid; src(*AX>>32)
/sys/src/libc/fmt/dofmt.c:310
305 return _fmtrcpy(f, x, 1);
306 }
307
308 /* fmt an integer */
309 int
>310 _ifmt(Fmt *f)
311 {
312 char buf[88], *p, *conv;
313 uvlong vu;
314 ulong u;
315 uintptr pu;
- erik
next prev parent reply other threads:[~2013-08-21 19:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-21 18:36 erik quanstrom
2013-08-21 18:49 ` Bakul Shah
2013-08-21 18:57 ` erik quanstrom
2013-08-21 19:25 ` Bakul Shah
2013-08-21 19:29 ` erik quanstrom [this message]
2013-08-21 21:44 ` erik quanstrom
2013-08-22 15:32 ` Bakul Shah
2013-08-22 16:54 ` erik quanstrom
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