kpatch/test/integration/fedora-27/special-static.patch

diff -Nupr src.orig/kernel/fork.c src/kernel/fork.c
--- src.orig/kernel/fork.c	2017-11-17 15:58:51.541211972 -0500
+++ src/kernel/fork.c	2017-11-17 15:59:41.041211972 -0500
@@ -1374,10 +1374,18 @@ static void posix_cpu_timers_init_group(
 static inline void posix_cpu_timers_init_group(struct signal_struct *sig) { }
 #endif
 
+void kpatch_foo(void)
+{
+	if (!jiffies)
+		printk("kpatch copy signal\n");
+}
+
 static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
 {
 	struct signal_struct *sig;
 
+	kpatch_foo();
+
 	if (clone_flags & CLONE_THREAD)
 		return 0;
testing: rebase integration tests for Fedora 25 Kernel version 4.8.6-300.fc25.x86_64 2016-12-05 14:43:22 +00:00			`diff -Nupr src.orig/kernel/fork.c src/kernel/fork.c`
testing: rebase patches for Fedora 27 4.13.9-300.fc27.x86_64 Rename the old Fedora 25 integration patch directory and rebase to Fedora 27 sources. Fixes #761. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> 2017-11-27 19:14:24 +00:00			`--- src.orig/kernel/fork.c 2017-11-17 15:58:51.541211972 -0500`
			`+++ src/kernel/fork.c 2017-11-17 15:59:41.041211972 -0500`
			`@@ -1374,10 +1374,18 @@ static void posix_cpu_timers_init_group(`
			`static inline void posix_cpu_timers_init_group(struct signal_struct *sig) { }`
			`#endif`
support for__key and __warned special static local vars Add support for the __key and __warned "special" static local variables. I'm calling them that for lack of a better term, analagous to the kernel's special sections that we have to deal with. __warned: Used by WARN_ONCE et al as an indicator as to whether a message has already been printed. I think it makes sense (and is much easier) to reset this counter for a given function when replacing the function, since the user may expect the new function to warn again. __key: Used by lockdep as an identifier for a given lock initialization code path (see http://lwn.net/Articles/185666/ for more info). I think it makes sense (and is much easier) to create a new key for a given function when replacing the function, because the locking semantics may have changed, so it makes sense for lockdep to use a new key to validate the new locking behavior. So for both __warned and __key static variables, the new version of the variable should be used when referenced by an included function. Made the following changes to support these special variables: - Ignore their suffixes when comparing them in rela_equal, so that gcc renaming them will not result in a function being marked as changed just because it referenced a renamed static local - Don't ever correlate them, so that their new versions will be included if a changed or new function uses their corresponding symbols Fixes #402. 2014-09-09 15:02:53 +00:00
			`+void kpatch_foo(void)`
			`+{`
			`+ if (!jiffies)`
			`+ printk("kpatch copy signal\n");`
			`+}`
			`+`
			`static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)`
			`{`
			`struct signal_struct *sig;`

			`+ kpatch_foo();`
			`+`
			`if (clone_flags & CLONE_THREAD)`
			`return 0;`