[uclibc-ng-devel] Re: build error for x86_64 with NPTL

Hi Kirill, Kirill Makurin wrote,

I attached the config I am currently using. It enables most of library features, except for some glibc-compatibility and obsolete stuff.

I was doing native compilation on a Debian 12 system (gcc 12.2, binutils 2.40), but I was using Linux headers v6.14 for the build.

Compilation fails with the following diagnostic:

libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:122:3: error: #error
"not supported.  %rcx and %rdi must be preserved"
122 | # error "not supported.  %rcx and %rdi must be preserve
         |   ^~~~~

As I have mentioned, including tls.h from this file seems to fix the issue.

Hmm, I can't reproduce the issue. Makefile.arch does set ASFLAGS. Did you override ASFLAGS somehow in your environment overwriting the default from uClibc-ng?

best regards Waldemar