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-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index c2618ff8ed..43e95dfee4 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -379,3 +379,10 @@
 #if __LINUX_KERNEL_VERSION >= 132609
 # define __ASSUME_PROT_GROWSUPDOWN	1
 #endif
+
+/* Starting with 2.6.0 PowerPC adds signal/swapcontext support for Vector 
+   SIMD (AKA Altivec, VMX) instructions and register state.  This changes 
+   the overall size of the sigcontext and adds the swapcontext syscall.  */
+#if __LINUX_KERNEL_VERSION >= (132608) && defined __powerpc__
+# define __ASSUME_SWAPCONTEXT_SYSCALL		1
+#endif