On Mon, Jan 21, 2008 at 05:34:43PM -0800, David Schwartz wrote: > > - there is no difference between > > multithreaded and non-multithreaded _compilation_ (surely not for errno > > and malloc). > > Really? So 'errno' refers to a process global in both cases?! (Note that I > said the "definition", not the implementation.)
If your glibc (only) supports NPTL, which is the case for recent versions, errno is defined like this: # define errno (*__errno_location ()) errno is stored in Thread Local Storage (TLS). You can't link to the global errno anymore. Using "extern int errno" will actually result in a linking error: /usr/bin/ld: errno: TLS definition in /lib/libc.so.6 section .tbss mismatches non-TLS reference Kurt ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List openssl-dev@openssl.org Automated List Manager [EMAIL PROTECTED]
