diff --git a/ChangeLog.alpha b/ChangeLog.alpha index 8ade5822e7..804dd647eb 100644 --- a/ChangeLog.alpha +++ b/ChangeLog.alpha @@ -1,5 +1,7 @@ 2012-02-08 Richard Henderson + * sysdeps/alpha/tls-macros.h: New file. + * sysdeps/unix/sysv/linux/alpha/getitimer.S: Don't check HAVE_ELF. * sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise. diff --git a/sysdeps/alpha/tls-macros.h b/sysdeps/alpha/tls-macros.h new file mode 100644 index 0000000000..0385d93e2a --- /dev/null +++ b/sysdeps/alpha/tls-macros.h @@ -0,0 +1,25 @@ +/* Macros to support TLS testing in times of missing compiler support. */ + +extern void *__tls_get_addr (void *); + +# define TLS_GD(x) \ + ({ void *__result; \ + asm ("lda %0, " #x "($gp) !tlsgd" : "=r" (__result)); \ + __tls_get_addr (__result); }) + +# define TLS_LD(x) \ + ({ void *__result; \ + asm ("lda %0, " #x "($gp) !tlsldm" : "=r" (__result)); \ + __result = __tls_get_addr (__result); \ + asm ("lda %0, " #x "(%0) !dtprel" : "+r" (__result)); \ + __result; }) + +# define TLS_IE(x) \ + ({ long ofs; \ + asm ("ldq %0, " #x "($gp) !gottprel" : "=r"(ofs)); \ + __builtin_thread_pointer () + ofs; }) + +# define TLS_LE(x) \ + ({ void *__result = __builtin_thread_pointer (); \ + asm ("lda %0, " #x "(%0) !tprel" : "+r" (__result)); \ + __result; })