Date: Thu, 16 May 2013 17:12:04 +0100 From: Justin Cormack <justin@...cialbusservice.com> To: musl@...ts.openwall.com Subject: Re: High-priority library replacements? On Wed, May 15, 2013 at 9:17 PM, Rich Felker <dalias@...ifal.cx> wrote: > On Sun, May 12, 2013 at 03:42:23PM -0700, Brad Conroy wrote: >> In case I don't get around to fully researching it, the kernel spews >> out major and minor numbers in /sys that are greater than 255, so >> the makedev in /sys/sysmacros.h is insufficient (also major() and >> minor()???) I noticed because I wrote a shell script that populates >> /dev from /sys in <0.2 seconds but failed for large major/minor >> numbers when I built busybox with musl. At first glance, it looks >> like dev_t needs to be uint and have the extra bits from major and >> minor prepended as in the kernel's dev_t? > > Should be fixed in git. Let me know if it doesn't work right. mknod/mknodat still does return syscall(SYS_mknod, path, mode, dev & 0xffff); - I believe it should pass the full 32 bits. Also the top 32 bits are only for compatibility with glibc I think, not sure the macros should touch or use them, as the kernel has 32 bit dev_t and no plans to change. Justin
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