Re: gcc trunk fails to build kernel on PowerPC64 due to oprofile warnings
William Cohen <[email protected]>
| Newsgroups | gmane.linux.oprofile,gmane.linux.ports.ppc64.devel |
|---|---|
| Message-ID | <[email protected]> |
On 01/26/2017 11:06 AM, Robert Richter wrote: > On 26.01.17 10:46:43, William Cohen wrote: >> From 7e46dbd7dc5bc941926a4a63c28ccebf46493e8d Mon Sep 17 00:00:00 2001 >> From: William Cohen <[email protected]> >> Date: Thu, 26 Jan 2017 10:33:59 -0500 >> Subject: [PATCH] Avoid hypthetical string truncation in oprofile stats buffer >> MIME-Version: 1.0 >> Content-Type: text/plain; charset=UTF-8 >> Content-Transfer-Encoding: 8bit >> >> Increased the size of an internal oprofile driver buffer ensuring that >> the string was never truncated for any possible int value to avoid the >> following gcc-7 compiler error on ppc when building the kernel: > > Please test gcc7 for other archs first. I don't think this is the only > change needed to avoid this warning in oprofile code. > > Thanks, > > -Robert Hi Robert, It took me a little while to get a gcc-7 environment set up with Fedora Rawhide on x86_64. I have a kernel building now with gcc-7 and will see what other issues pop up during the compile. While watching the output of the build I see the gcc-7 error message about truncating output of snprintf output seems to occur for a number of other places besides the oprofile kernel code during the compile. -Will ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot