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Diffstat (limited to 'nptl/sysdeps/i386/tls.h')
-rw-r--r--nptl/sysdeps/i386/tls.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h
index 85d6473380..873467ca77 100644
--- a/nptl/sysdeps/i386/tls.h
+++ b/nptl/sysdeps/i386/tls.h
@@ -251,6 +251,11 @@ union user_desc_init
: "i" (offsetof (struct pthread, header.self))); \
__self;})
+/* Magic for libthread_db to know how to do THREAD_SELF. */
+# define DB_THREAD_SELF \
+ REGISTER_THREAD_AREA (32, offsetof (struct user_regs_struct, xgs), 3) \
+ REGISTER_THREAD_AREA (64, 26 * 8, 3) /* x86-64's user_regs_struct->gs */
+
/* Read member of the thread descriptor directly. */
# define THREAD_GETMEM(descr, member) \