Date: Mon, 8 Jun 2015 20:20:26 -0700 From: Isaac Dunham <ibid.ag@...il.com> To: musl@...ts.openwall.com Subject: Re: Build option to disable locale [was: Byte-based C locale, draft 1] On Mon, Jun 08, 2015 at 04:46:42AM +0200, Harald Becker wrote: > On 08.06.2015 02:33, Rich Felker wrote: > >So aside from iconv, the above seem to total around 19k, and at least > >6k of that is mandatory if you want to be able to claim to support > >UTF-8. So the topic at hand seems to be whether you can save <13k of > >libc.so size by hacking out character handling/locale related features > >that are non-essential to basic UTF-8 support... > > I like to get a stripped down version, which eliminate all the unnecessary > char set handling code used in dedicated systems, but stripping that on > every release is too much work to do. > > The benefit may be for: > > - embedded systems > - small initramfs based systems > - container systems > - minimal chroot environments Somehow it sounds like you may not have gotten wat Rich was asking. IIRC, the goals of musl include full native support for UTF-8; keeping the time complexity to a minimum; and clean, correct code. Dropping out 'legacy' charsets doesn't really sacrifice those goals. But the other changes are have a much bigger impact on them. So you're probably going to have to convince Rich that there *is* a major benefit ('is' != 'could be'). For container systems or minimal chroot environments, you're dealing with something that doesn't have a hard size limit, and if a chroot or container runs ~6 MB ordinarily, you might be able to run 0.3% more on the same hardware. That's probably not enough of a case. For initramfs-based systems, you've got a similar situation but no chance to multiply the effect, unless you're using a VM or hypervisor. Now, since embedded systems have hard limits on size, you might be able to make a case there. But you will need to come up with somthing more specific, such as "I have a system where I could upgrade the kernel to 2.6.xx *if* musl were ~20k smaller than building with a minimal iconv" or "If we did this, there would be enough space to switch XYZ router firmware from telnetd to dropbear". HTH, Isaac Dunham
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.