Hi, Sheng Yong wrote, > Hi, > > I encountered a problem when I test thread local storage > on my arm board (kernel 3.10.77 and uclibc 0.99.3.2). > > Please let me know if I am doing something wrong for > debugging TLS.
You mean 0.9.33.2? Sure it has NPTL/TLS support, but it depends if it is configured in or not. uClibc support linuxthreads, linuxthreads-new and NPTL for ARM. So it depends how it got configured. > on my x86 host machine: > root@kernel-host:~> cat tls.c > __thread int i =5; > > int > main (int argc, char **argv) > { > return 0; > } > > root@kernel-host:~> arm-linux-uclibceabi-gcc -o tls tls.c -g -lpthread > > on my arm board: > -bash-4.2# gdb ./tls > GNU gdb (GDB) 7.6 > Copyright (C) 2013 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "arm-euler-linux-uclibceabi". > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>... > Reading symbols from /tmp/zz/tls...done. > (gdb) b main > Breakpoint 1 at 0x8518: file tls.c, line 6. > (gdb) r > Starting program: /tmp/zz/tls > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib/libthread_db.so.1". > > Breakpoint 1, main (argc=1, argv=0xbefffd84) at tls.c:6 > 6 tls.c: No such file or directory. > (gdb) whatis i > type = int > (gdb) p i > Cannot find thread-local storage for Thread 0xb6ffb000 (LWP 538), executable > file /tmp/zz/tls: > *capability not available* > (gdb) Strange error. best regards Waldemar _______________________________________________ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc