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-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h6
-rw-r--r--sysdeps/unix/sysv/linux/ldsodefs.h8
2 files changed, 13 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 408352590a..d26930bce6 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -321,3 +321,9 @@
 #if __LINUX_KERNEL_VERSION >= 132426
 # define __ASSUME_STATFS64	1
 #endif
+
+/* Starting with at least 2.5.74 the kernel passes the setuid-like exec
+   flag unconditionally up to the child.  */
+#if __LINUX_KERNEL_VERSION >= 132426
+# define __ASSUME_AT_SECURE	1
+#endif
diff --git a/sysdeps/unix/sysv/linux/ldsodefs.h b/sysdeps/unix/sysv/linux/ldsodefs.h
index a3c97c4731..c5fd854d70 100644
--- a/sysdeps/unix/sysv/linux/ldsodefs.h
+++ b/sysdeps/unix/sysv/linux/ldsodefs.h
@@ -1,5 +1,5 @@
 /* Run-time dynamic linker data structures for loaded ELF shared objects.
-   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -41,6 +41,12 @@ extern void _dl_non_dynamic_init (void) internal_function;
 # define HAVE_AUX_XID
 #endif
 
+/* We can assume that the kernel always provides the AT_SECURE value
+   in the auxiliary vector from 2.5.74 or so on.  */
+#if __ASSUME_AT_SECURE
+# define HAVE_AUX_SECURE
+#endif
+
 /* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
    up the page size information.  */
 #if __ASSUME_AT_PAGESIZE