Oh, it really seems to be my mistake. I was using my own build script to build and install uclibc-ng (together with some other packages) and I was passing ASFLAGS among other common variables to make invocation.
Removing ASFLAGS from make invocation fixes the build error. Thank you for pointing out.
- Kirill Makurin ________________________________ From: Waldemar Brodkorb wbx@openadk.org Sent: Monday, May 26, 2025 11:22 PM To: Kirill Makurin maiddaisuki@outlook.com Cc: devel@uclibc-ng.org devel@uclibc-ng.org Subject: Re: [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