[Fwd: Re: libc/4938: resolvfail segfaults - locale not initialized]

[Patrick Smith]

On Saturday, I used the "send email to interested parties" link in gnats 
to try to add some information to bug 4938.  It still hasn't shown up in 
the audit trail, so I'm now forwarding the message here.

The important point to note is that libpthread.so is not getting the 
proper initialization code inserted.

(And I'm sort of curious as to how the initialization happens when 
libpthread.a is used.)

-------- Original Message --------
Subject: Re: libc/4938: resolvfail segfaults - locale not initialized
Date: Sat, 11 Jan 2003 19:11:05 -0500
From: Patrick Smith <address@hidden>
To: address@hidden,  gnats-admin,  address@hidden

http%3A%2F%2Fbugs.gnu.org%2Fcgi-bin%2Fgnatsweb.pl%3Fcmd%3Dview%2520audit-trail%26database%3Dglibc%26pr%3D4938

It seems the proper initialization code is not being inserted into
libpthread.so.  This causes the locale bug mentioned above, and has
other side effects.  For example, this little program


#include <pthread.h>
#include <stdio.h>
#include <errno.h>

int main()
{
    int policy;
    struct sched_param param;

    printf("%d\n", pthread_getschedparam(pthread_self(), &policy, &param));
    return 0;
}


print 3.  It should print 0.


When libpthread.so is built, the linuxthreads crti.o and crtn.o are not
inserted.  I am currently using the following patch as a workaround:


--- linuxthreads/Makefile.orig  2003-01-11 13:49:52.000000000 -0500
+++ linuxthreads/Makefile       2003-01-11 14:13:22.000000000 -0500
@@ -158,3 +158,14 @@
         $(SHELL) -e $< $(common-objpfx) > $@
  endif
  endif
+
+define build-shlib-helper
+$(LINK.o) -shared $(static-libgcc) -Wl,-O1 $(sysdep-LDFLAGS)
$(config-LDFLAGS) \
+         -nostdlib $(objpfx)crti.o \
+         $(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
+         $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
+         -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
+         $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
+         -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
+          $(objpfx)crtn.o
+endef


--
address@hidden