Add support for stack-protector
Add support for stack protector for UBOOT, SPL, and TPL
as well as new pytest for stackprotector
Signed-off-by: Joel Peshkin <joel.peshkin@broadcom.com>
Adjust UEFI build flags.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 2b66285..9e8b692 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -2325,6 +2325,15 @@
avb read_part_hex - read data from partition and output to stdout
avb write_part - write data to partition
avb verify - run full verification chain
+
+config CMD_STACKPROTECTOR_TEST
+ bool "Test command for stack protector"
+ depends on STACKPROTECTOR
+ help
+ Enable stackprot_test command
+ The stackprot_test command will force a stack overrun to test
+ the stack smashing detection mechanisms.
+
endmenu
config CMD_UBI
diff --git a/cmd/Makefile b/cmd/Makefile
index e606ac4..4977fa1 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -144,6 +144,7 @@
obj-$(CONFIG_CMD_STRINGS) += strings.o
obj-$(CONFIG_CMD_SMC) += smccc.o
obj-$(CONFIG_CMD_SYSBOOT) += sysboot.o pxe_utils.o
+obj-$(CONFIG_CMD_STACKPROTECTOR_TEST) += stackprot_test.o
obj-$(CONFIG_CMD_TERMINAL) += terminal.o
obj-$(CONFIG_CMD_TIME) += time.o
obj-$(CONFIG_CMD_TIMER) += timer.o
diff --git a/cmd/stackprot_test.c b/cmd/stackprot_test.c
new file mode 100644
index 0000000..36f5bac
--- /dev/null
+++ b/cmd/stackprot_test.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2021 Broadcom
+ */
+
+#include <common.h>
+#include <command.h>
+
+static int do_test_stackprot_fail(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ char a[128];
+
+ memset(a, 0xa5, 512);
+ return 0;
+}
+
+U_BOOT_CMD(stackprot_test, 1, 1, do_test_stackprot_fail,
+ "test stack protector fail", "");