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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 14:57:23 -0400	[thread overview]
Message-ID: <d92931b41d270e71c61f582b9860649c@brasstown.quanstro.net> (raw)
In-Reply-To: <20130821184909.51FA2B827@mail.bitblocks.com>

> You're casting a large int into a small int and this seems right.
> Just as (uchar)0x1234 => 0x34
>
> > marshalling a 64-bit pointer in this way will lay down the
> > bytes with the hi and lo reversed.
>
> Perhaps you meant to do *(uchar*)&x?

you're right.  what was i thinking.  still, pointers are marshaled wrong.
compiled on mips, this program

#include <u.h>
#include <libc.h>

void
main(void)
{
	char *p;

	p = malloc(100);
	print("%p\n", p);
}
does this
; 6.crash
6.crash 203443: suicide: sys: trap: #SS pc=0x2048f2

- erik



  reply	other threads:[~2013-08-21 18:57 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 [this message]
2013-08-21 19:25     ` Bakul Shah
2013-08-21 19:29       ` erik quanstrom
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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