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-rw-r--r--sysdeps/alpha/tls-macros.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/sysdeps/alpha/tls-macros.h b/sysdeps/alpha/tls-macros.h
new file mode 100644
index 0000000000..00489c289f
--- /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) \
+ ({ register void *__gp asm ("$29"); void *__result; \
+ asm ("lda %0, " #x "($gp) !tlsgd" : "=r" (__result) : "r"(__gp)); \
+ __tls_get_addr (__result); })
+
+# define TLS_LD(x) \
+ ({ register void *__gp asm ("$29"); void *__result; \
+ asm ("lda %0, " #x "($gp) !tlsldm" : "=r" (__result) : "r"(__gp)); \
+ __result = __tls_get_addr (__result); \
+ asm ("lda %0, " #x "(%0) !dtprel" : "+r" (__result)); \
+ __result; })
+
+# define TLS_IE(x) \
+ ({ register void *__gp asm ("$29"); long ofs; \
+ asm ("ldq %0, " #x "($gp) !gottprel" : "=r"(ofs) : "r"(__gp)); \
+ __builtin_thread_pointer () + ofs; })
+
+# define TLS_LE(x) \
+ ({ void *__result = __builtin_thread_pointer (); \
+ asm ("lda %0, " #x "(%0) !tprel" : "+r" (__result)); \
+ __result; })