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Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/sysdep.h')
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index 4aa7bb496a..420b6a7912 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -662,4 +662,9 @@ struct libc_do_syscall_args
 # endif
 #endif
 
+/* Each shadow stack slot takes 4 bytes.  Assuming that each stack
+   frame takes 128 bytes, this is used to compute shadow stack size
+   from stack size.  */
+#define STACK_SIZE_TO_SHADOW_STACK_SIZE_SHIFT 5
+
 #endif /* linux/i386/sysdep.h */