site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=XPv4qESGMStCzlhz3tK4Ez5ao8tynxqRfCzJzWLTdPY=; b=FrrQrFtGeCQq9ZApb/BIB6SDlHUjg1XdumNWxsBtvl+LTUn+psC5D2Wx1BMqLrjbz2 Ec5ik74H2+aP33r6jaJWRTk+wkNPUpO5LtXRBjcmyl4byhzguiAdvmRF0QIC31ElCpMI 4+mS0s/fHh0kBiDnqjzca8u4Fv1mD4WWkUyUA= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=PmK9ZYAjJa5Ibp4R8s+sdY55j+7x7zmEhP1R5V+NBF6yQFO7SPzIKNkSZqklZgNpWN YTFtvs2rFG0/4DR4NJ5+DJt8rI5p1FXg70Mr4kwn1rYj+QyABcFJv2r59tb1Cr5bnGPp whM2Jr5VmHWek/M35xu7R0fSy481VzbE50TJk= On Mon, Nov 10, 2008 at 10:20 AM, Iceberg-Dev <dev.iceberg@gmail.com> wrote:
On Nov 10, 2008, at 7:06 PM, Clark Cox wrote:
On Mon, Nov 10, 2008 at 9:23 AM, Iceberg-Dev <dev.iceberg@gmail.com> wrote:
On Nov 10, 2008, at 4:08 PM, Finlay Dobbie wrote:
http://www.opensource.apple.com/darwinsource/10.5.5/cctools-667.3/misc/lipo....
Thanks.
Is it supoosed to be up-to-date and 64-bit compatible?
I'm asking because for instance, this line looks suspicious:
(*((unsigned long *)addr) == MH_MAGIC ||
What looks suspicious about it?
The ability to run this code as a 64-bit executable.
The magic cookie is a 32-bit value. AFAIK, if you build a 64-bit executable and use unsigned long, it's a 64-bit value.
With a PowerPC, I'm not sure you can guarantee that the higher 4 bytes will be equal to 0x00000000 as the magic cookie can be the first 4 bytes of a file (non fat). With an Intel Mac, the issue would be different, since it would assume that the 4 bytes after the magic cookie in the binary should be 0x00000000 instead of the cpu_type.
Ahh, I see what you mean. No, it does not appear to be 64-bit clean. It probably wouldn't be too hard to hack up your own version that uses unsigned int (or uint32_t, UInt32, etc.) instead of unsigned long -- Clark S. Cox III clarkcox3@gmail.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... This email sent to site_archiver@lists.apple.com