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-rw-r--r--samples/ftrace/ftrace-direct-modify.c44
-rw-r--r--samples/ftrace/ftrace-direct-multi-modify.c50
-rw-r--r--samples/ftrace/ftrace-direct-multi.c30
-rw-r--r--samples/ftrace/ftrace-direct-too.c37
-rw-r--r--samples/ftrace/ftrace-direct.c33
5 files changed, 175 insertions, 19 deletions
diff --git a/samples/ftrace/ftrace-direct-modify.c b/samples/ftrace/ftrace-direct-modify.c
index d93abbcb1f4c..06d889149012 100644
--- a/samples/ftrace/ftrace-direct-modify.c
+++ b/samples/ftrace/ftrace-direct-modify.c
@@ -96,6 +96,42 @@ asm (
#endif /* CONFIG_S390 */
+#ifdef CONFIG_LOONGARCH
+
+asm (
+" .pushsection .text, \"ax\", @progbits\n"
+" .type my_tramp1, @function\n"
+" .globl my_tramp1\n"
+" my_tramp1:\n"
+" addi.d $sp, $sp, -16\n"
+" st.d $t0, $sp, 0\n"
+" st.d $ra, $sp, 8\n"
+" bl my_direct_func1\n"
+" ld.d $t0, $sp, 0\n"
+" ld.d $ra, $sp, 8\n"
+" addi.d $sp, $sp, 16\n"
+" jr $t0\n"
+" .size my_tramp1, .-my_tramp1\n"
+
+" .type my_tramp2, @function\n"
+" .globl my_tramp2\n"
+" my_tramp2:\n"
+" addi.d $sp, $sp, -16\n"
+" st.d $t0, $sp, 0\n"
+" st.d $ra, $sp, 8\n"
+" bl my_direct_func2\n"
+" ld.d $t0, $sp, 0\n"
+" ld.d $ra, $sp, 8\n"
+" addi.d $sp, $sp, 16\n"
+" jr $t0\n"
+" .size my_tramp2, .-my_tramp2\n"
+" .popsection\n"
+);
+
+#endif /* CONFIG_LOONGARCH */
+
+static struct ftrace_ops direct;
+
static unsigned long my_tramp = (unsigned long)my_tramp1;
static unsigned long tramps[2] = {
(unsigned long)my_tramp1,
@@ -114,7 +150,7 @@ static int simple_thread(void *arg)
if (ret)
continue;
t ^= 1;
- ret = modify_ftrace_direct(my_ip, my_tramp, tramps[t]);
+ ret = modify_ftrace_direct(&direct, tramps[t]);
if (!ret)
my_tramp = tramps[t];
WARN_ON_ONCE(ret);
@@ -129,7 +165,9 @@ static int __init ftrace_direct_init(void)
{
int ret;
- ret = register_ftrace_direct(my_ip, my_tramp);
+ ftrace_set_filter_ip(&direct, (unsigned long) my_ip, 0, 0);
+ ret = register_ftrace_direct(&direct, my_tramp);
+
if (!ret)
simple_tsk = kthread_run(simple_thread, NULL, "event-sample-fn");
return ret;
@@ -138,7 +176,7 @@ static int __init ftrace_direct_init(void)
static void __exit ftrace_direct_exit(void)
{
kthread_stop(simple_tsk);
- unregister_ftrace_direct(my_ip, my_tramp);
+ unregister_ftrace_direct(&direct, my_tramp, true);
}
module_init(ftrace_direct_init);
diff --git a/samples/ftrace/ftrace-direct-multi-modify.c b/samples/ftrace/ftrace-direct-multi-modify.c
index b58c594efb51..62f6b681999e 100644
--- a/samples/ftrace/ftrace-direct-multi-modify.c
+++ b/samples/ftrace/ftrace-direct-multi-modify.c
@@ -103,6 +103,47 @@ asm (
#endif /* CONFIG_S390 */
+#ifdef CONFIG_LOONGARCH
+#include <asm/asm.h>
+
+asm (
+" .pushsection .text, \"ax\", @progbits\n"
+" .type my_tramp1, @function\n"
+" .globl my_tramp1\n"
+" my_tramp1:\n"
+" addi.d $sp, $sp, -32\n"
+" st.d $a0, $sp, 0\n"
+" st.d $t0, $sp, 8\n"
+" st.d $ra, $sp, 16\n"
+" move $a0, $t0\n"
+" bl my_direct_func1\n"
+" ld.d $a0, $sp, 0\n"
+" ld.d $t0, $sp, 8\n"
+" ld.d $ra, $sp, 16\n"
+" addi.d $sp, $sp, 32\n"
+" jr $t0\n"
+" .size my_tramp1, .-my_tramp1\n"
+
+" .type my_tramp2, @function\n"
+" .globl my_tramp2\n"
+" my_tramp2:\n"
+" addi.d $sp, $sp, -32\n"
+" st.d $a0, $sp, 0\n"
+" st.d $t0, $sp, 8\n"
+" st.d $ra, $sp, 16\n"
+" move $a0, $t0\n"
+" bl my_direct_func2\n"
+" ld.d $a0, $sp, 0\n"
+" ld.d $t0, $sp, 8\n"
+" ld.d $ra, $sp, 16\n"
+" addi.d $sp, $sp, 32\n"
+" jr $t0\n"
+" .size my_tramp2, .-my_tramp2\n"
+" .popsection\n"
+);
+
+#endif /* CONFIG_LOONGARCH */
+
static unsigned long my_tramp = (unsigned long)my_tramp1;
static unsigned long tramps[2] = {
(unsigned long)my_tramp1,
@@ -123,7 +164,7 @@ static int simple_thread(void *arg)
if (ret)
continue;
t ^= 1;
- ret = modify_ftrace_direct_multi(&direct, tramps[t]);
+ ret = modify_ftrace_direct(&direct, tramps[t]);
if (!ret)
my_tramp = tramps[t];
WARN_ON_ONCE(ret);
@@ -141,7 +182,7 @@ static int __init ftrace_direct_multi_init(void)
ftrace_set_filter_ip(&direct, (unsigned long) wake_up_process, 0, 0);
ftrace_set_filter_ip(&direct, (unsigned long) schedule, 0, 0);
- ret = register_ftrace_direct_multi(&direct, my_tramp);
+ ret = register_ftrace_direct(&direct, my_tramp);
if (!ret)
simple_tsk = kthread_run(simple_thread, NULL, "event-sample-fn");
@@ -151,13 +192,12 @@ static int __init ftrace_direct_multi_init(void)
static void __exit ftrace_direct_multi_exit(void)
{
kthread_stop(simple_tsk);
- unregister_ftrace_direct_multi(&direct, my_tramp);
- ftrace_free_filter(&direct);
+ unregister_ftrace_direct(&direct, my_tramp, true);
}
module_init(ftrace_direct_multi_init);
module_exit(ftrace_direct_multi_exit);
MODULE_AUTHOR("Jiri Olsa");
-MODULE_DESCRIPTION("Example use case of using modify_ftrace_direct_multi()");
+MODULE_DESCRIPTION("Example use case of using modify_ftrace_direct()");
MODULE_LICENSE("GPL");
diff --git a/samples/ftrace/ftrace-direct-multi.c b/samples/ftrace/ftrace-direct-multi.c
index c27cf130c319..5482cf616b43 100644
--- a/samples/ftrace/ftrace-direct-multi.c
+++ b/samples/ftrace/ftrace-direct-multi.c
@@ -66,6 +66,31 @@ asm (
#endif /* CONFIG_S390 */
+#ifdef CONFIG_LOONGARCH
+
+#include <asm/asm.h>
+asm (
+" .pushsection .text, \"ax\", @progbits\n"
+" .type my_tramp, @function\n"
+" .globl my_tramp\n"
+" my_tramp:\n"
+" addi.d $sp, $sp, -32\n"
+" st.d $a0, $sp, 0\n"
+" st.d $t0, $sp, 8\n"
+" st.d $ra, $sp, 16\n"
+" move $a0, $t0\n"
+" bl my_direct_func\n"
+" ld.d $a0, $sp, 0\n"
+" ld.d $t0, $sp, 8\n"
+" ld.d $ra, $sp, 16\n"
+" addi.d $sp, $sp, 32\n"
+" jr $t0\n"
+" .size my_tramp, .-my_tramp\n"
+" .popsection\n"
+);
+
+#endif /* CONFIG_LOONGARCH */
+
static struct ftrace_ops direct;
static int __init ftrace_direct_multi_init(void)
@@ -73,13 +98,12 @@ static int __init ftrace_direct_multi_init(void)
ftrace_set_filter_ip(&direct, (unsigned long) wake_up_process, 0, 0);
ftrace_set_filter_ip(&direct, (unsigned long) schedule, 0, 0);
- return register_ftrace_direct_multi(&direct, (unsigned long) my_tramp);
+ return register_ftrace_direct(&direct, (unsigned long) my_tramp);
}
static void __exit ftrace_direct_multi_exit(void)
{
- unregister_ftrace_direct_multi(&direct, (unsigned long) my_tramp);
- ftrace_free_filter(&direct);
+ unregister_ftrace_direct(&direct, (unsigned long) my_tramp, true);
}
module_init(ftrace_direct_multi_init);
diff --git a/samples/ftrace/ftrace-direct-too.c b/samples/ftrace/ftrace-direct-too.c
index 8139dce2a31c..a05bc2cc2261 100644
--- a/samples/ftrace/ftrace-direct-too.c
+++ b/samples/ftrace/ftrace-direct-too.c
@@ -70,16 +70,45 @@ asm (
#endif /* CONFIG_S390 */
+#ifdef CONFIG_LOONGARCH
+
+asm (
+" .pushsection .text, \"ax\", @progbits\n"
+" .type my_tramp, @function\n"
+" .globl my_tramp\n"
+" my_tramp:\n"
+" addi.d $sp, $sp, -48\n"
+" st.d $a0, $sp, 0\n"
+" st.d $a1, $sp, 8\n"
+" st.d $a2, $sp, 16\n"
+" st.d $t0, $sp, 24\n"
+" st.d $ra, $sp, 32\n"
+" bl my_direct_func\n"
+" ld.d $a0, $sp, 0\n"
+" ld.d $a1, $sp, 8\n"
+" ld.d $a2, $sp, 16\n"
+" ld.d $t0, $sp, 24\n"
+" ld.d $ra, $sp, 32\n"
+" addi.d $sp, $sp, 48\n"
+" jr $t0\n"
+" .size my_tramp, .-my_tramp\n"
+" .popsection\n"
+);
+
+#endif /* CONFIG_LOONGARCH */
+
+static struct ftrace_ops direct;
+
static int __init ftrace_direct_init(void)
{
- return register_ftrace_direct((unsigned long)handle_mm_fault,
- (unsigned long)my_tramp);
+ ftrace_set_filter_ip(&direct, (unsigned long) handle_mm_fault, 0, 0);
+
+ return register_ftrace_direct(&direct, (unsigned long) my_tramp);
}
static void __exit ftrace_direct_exit(void)
{
- unregister_ftrace_direct((unsigned long)handle_mm_fault,
- (unsigned long)my_tramp);
+ unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
}
module_init(ftrace_direct_init);
diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c
index 1d3d307ca33d..06879bbd3399 100644
--- a/samples/ftrace/ftrace-direct.c
+++ b/samples/ftrace/ftrace-direct.c
@@ -63,16 +63,41 @@ asm (
#endif /* CONFIG_S390 */
+#ifdef CONFIG_LOONGARCH
+
+asm (
+" .pushsection .text, \"ax\", @progbits\n"
+" .type my_tramp, @function\n"
+" .globl my_tramp\n"
+" my_tramp:\n"
+" addi.d $sp, $sp, -32\n"
+" st.d $a0, $sp, 0\n"
+" st.d $t0, $sp, 8\n"
+" st.d $ra, $sp, 16\n"
+" bl my_direct_func\n"
+" ld.d $a0, $sp, 0\n"
+" ld.d $t0, $sp, 8\n"
+" ld.d $ra, $sp, 16\n"
+" addi.d $sp, $sp, 32\n"
+" jr $t0\n"
+" .size my_tramp, .-my_tramp\n"
+" .popsection\n"
+);
+
+#endif /* CONFIG_LOONGARCH */
+
+static struct ftrace_ops direct;
+
static int __init ftrace_direct_init(void)
{
- return register_ftrace_direct((unsigned long)wake_up_process,
- (unsigned long)my_tramp);
+ ftrace_set_filter_ip(&direct, (unsigned long) wake_up_process, 0, 0);
+
+ return register_ftrace_direct(&direct, (unsigned long) my_tramp);
}
static void __exit ftrace_direct_exit(void)
{
- unregister_ftrace_direct((unsigned long)wake_up_process,
- (unsigned long)my_tramp);
+ unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
}
module_init(ftrace_direct_init);
generated by cgit (git 2.34.1) at 2025-06-03 07:12:31 +0000