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-rw-r--r--ports/sysdeps/alpha/nptl/tcb-offsets.sym14
1 files changed, 14 insertions, 0 deletions
diff --git a/ports/sysdeps/alpha/nptl/tcb-offsets.sym b/ports/sysdeps/alpha/nptl/tcb-offsets.sym
new file mode 100644
index 0000000000..c21a791040
--- /dev/null
+++ b/ports/sysdeps/alpha/nptl/tcb-offsets.sym
@@ -0,0 +1,14 @@
+#include <sysdep.h>
+#include <tls.h>
+
+--
+
+-- Abuse tls.h macros to derive offsets relative to the thread register.
+-- # define __builtin_thread_pointer()  ((void *) 0)
+-- # define thread_offsetof(mem)     ((void *) &THREAD_SELF->mem - (void *) 0)
+-- Ho hum, this doesn't work in gcc4, so Know Things about THREAD_SELF
+#define thread_offsetof(mem)	(long)(offsetof(struct pthread, mem) - sizeof(struct pthread))
+
+MULTIPLE_THREADS_OFFSET		thread_offsetof (header.multiple_threads)
+PID_OFFSET			thread_offsetof (pid)
+TID_OFFSET			thread_offsetof (tid)