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authorPhilippe Langlais <philippe.langlais@stericsson.com>2012-04-06 11:51:14 +0200
committerPhilippe Langlais <philippe.langlais@stericsson.com>2012-04-06 11:51:14 +0200
commit3b5766214a67f24913d4e046fc30eed7ec0ddc35 (patch)
tree65388dec2a13f78ede772136281607ae6c8ca9b7 /arch/arm/kernel/ftrace.c
parent70526554173aa46c8b13a59992b6fbc555fd4ee0 (diff)
parent78be8d8ebeafc24368e897c7fc78c301c1caf3c8 (diff)
Merge remote-tracking branch 'jstultz/linaro-android-3.3' into stable-android-ux500-3.3-1
Conflicts: arch/arm/common/Makefile drivers/gpu/Makefile drivers/misc/Kconfig drivers/misc/Makefile drivers/mmc/card/block.c drivers/mmc/core/core.c drivers/video/Kconfig include/net/bluetooth/hci.h include/net/bluetooth/hci_core.h include/net/bluetooth/sco.h kernel/printk.c net/bluetooth/hci_conn.c net/bluetooth/hci_event.c net/bluetooth/l2cap_core.c net/bluetooth/mgmt.c net/bluetooth/sco.c
Diffstat (limited to 'arch/arm/kernel/ftrace.c')
-rw-r--r--arch/arm/kernel/ftrace.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index c0062ad1e84..5722abf0e5d 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -13,6 +13,7 @@
*/
#include <linux/ftrace.h>
+#include <linux/module.h>
#include <linux/uaccess.h>
#include <asm/cacheflush.h>
@@ -115,6 +116,20 @@ static unsigned long ftrace_gen_branch(unsigned long pc, unsigned long addr,
}
#endif
+int ftrace_arch_code_modify_prepare(void)
+{
+ set_kernel_text_rw();
+ set_all_modules_text_rw();
+ return 0;
+}
+
+int ftrace_arch_code_modify_post_process(void)
+{
+ set_all_modules_text_ro();
+ set_kernel_text_ro();
+ return 0;
+}
+
static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr)
{
return ftrace_gen_branch(pc, addr, true);