[RFC/PATCH 2/3] arm: Add ARCH_WANT_OF_RANDOMNESS

Laura Abbott
2014-02-12T01:33:24Z

The stack canary for ARM is currently the same across reboots
due to lack of randomness early enough. Add ARCH_WANT_OF_RANDOMNESS
to allow devices to add whatever randomness they need.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
---
arch/arm/Kconfig | 3 +++
arch/arm/kernel/vmlinux.lds.S | 1 +
2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e254198..7ab0db1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -222,6 +222,9 @@ config NEED_RET_TO_USER
config ARCH_MTD_XIP
bool

+config ARCH_WANT_OF_RANDOMNESS
+ def_bool n
+
config VECTORS_BASE
hex
default 0xffff0000 if MMU || CPU_HIGH_VECTOR
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 7bcee5c..2198258 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -202,6 +202,7 @@ SECTIONS
INIT_SETUP(16)
INIT_CALLS
CON_INITCALL
+ EARLY_RANDOM_FUNCS
SECURITY_INITCALL
INIT_RAM_FS
}
--
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