On 11/21/2017 01:40 PM, Zack Weinberg wrote:
On Tue, Nov 21, 2017 at 4:25 PM, Vineet Gupta
make subdirs=nptl check fails as librt.so fails to link due to missing
pthread symbols. The real librt built does have libpthread.so in its link
cmd hence is fine, but not this librt.
I've tripped over this myself but only when trying to do an
incremental rebuild under conditions where an incremental build won't
work. I do not know what those conditions are: I only know that
blowing away the build tree and starting over from scratch has, until
now, cured the problem.
Are you seeing this in a build from scratch, not overriding subdirs?
This is a rebuild for make check. So I have a cross compilation setup using
builroot (to include my glibc branch from github etc). After the toolchain builds,
I go to build/glibc/build and do make check, (doing with subdirs=nptl is same)
But I know exactly what the problem is: libpthread.so is not present in the link
cmd for build/nptl/librt.so. I just don't know hoe to coax the build system to
include it (apparently that happens for the canonical rt/librt.so)
-Vineet
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