diff options
Diffstat (limited to 'samples/ftrace/ftrace-direct-multi-modify.c')
| -rw-r--r-- | samples/ftrace/ftrace-direct-multi-modify.c | 50 |
1 files changed, 45 insertions, 5 deletions
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"); |