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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-06-17 15:50:53 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-06-17 15:50:53 -0500
commite55a9b256d53c7fc5145e3e4d338d3741b23e232 (patch)
treea09f7bd43f54fc1958cb5002d477a2034bd315d8
parent3023a72eb83751a23b01b6cb996fb81fe3abbcb6 (diff)
downloadglibc-e55a9b256d53c7fc5145e3e4d338d3741b23e232.tar.gz
PowerPC: Reserve TCB space for EBB framework
This patch reserves four pointer to be used in future Event-Based Branch framework for PowerPC.
-rw-r--r--ChangeLog5
-rw-r--r--nptl/sysdeps/powerpc/tls.h5
2 files changed, 10 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index f5292c5d2e..8ba955a775 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 46dac9e9f3..8e0ada6bfa 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;