From: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Mon, 17 Jun 2013 20:50:53 +0000 (-0500)
Subject: PowerPC: Reserve TCB space for EBB framework
X-Git-Tag: glibc-2.18~113
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e55a9b256d53c7fc5145e3e4d338d3741b23e232;p=thirdparty%2Fglibc.git

PowerPC: Reserve TCB space for EBB framework

This patch reserves four pointer to be used in future Event-Based
Branch framework for PowerPC.
---

diff --git a/ChangeLog b/ChangeLog
index f5292c5d2e7..8ba955a7759 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-06-17  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
+	* nptl/sysdeps/powerpc/tls.h (tcbhead_t): Add Event-Based Branch
+	fields.
+
 2013-06-17  Roland McGrath  <roland@hack.frob.com>
 
 	* scripts/sysd-rules.awk: Sort sysd_rules_patterns by descending
diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h
index 46dac9e9f3c..8e0ada6bfab 100644
--- a/nptl/sysdeps/powerpc/tls.h
+++ b/nptl/sysdeps/powerpc/tls.h
@@ -61,6 +61,11 @@ typedef union dtv
    are private.  */
 typedef struct
 {
+  /* Reservation for the Event-Based Branching ABI.  */
+  uintptr_t ebb_handler;
+  uintptr_t ebb_ctx_pointer;
+  uintptr_t ebb_reserved1;
+  uintptr_t ebb_reserved2;
   uintptr_t pointer_guard;
   uintptr_t stack_guard;
   dtv_t *dtv;