fixed kernel run example (helps to reverse stuff ..)

Author: hitodama

kernel/hook/source/main.c

@@ -34,7 +34,7 @@ int hook1(void *td, Ps4KernFunctionHookArgument *uap)
 
 int hook2(void *td, Ps4KernFunctionHookArgument *uap)
 {
-	// unroot
+	// Blocks hooks added after this one
 	uap->arguments->rax = 0; // return OK
 	return PS4_KERN_FUNCTION_HOOK_RETURN; // intercept call
 }

kernel/kernel_run/source/kmain.c

@@ -38,19 +38,18 @@ int kmain(struct thread *td, void *uap)
 
 	free(kmoo, mt);
 
-	RunnableInt sceSblACMgrIsVideoplayerProcess = (RunnableInt)ps4KernelDlSym("sceSblACMgrIsVideoplayerProcess");
+	RunnableInt sceSblACMgrIsVideoplayerProcess = (RunnableInt)ps4KernDlSym("sceSblACMgrIsVideoplayerProcess");
 
-	//ps4KernThreadSetReturn0(td, sceSblACMgrIsVideoplayerProcess()); //see kmain2's content & return
-	return 0;
+	ps4KernThreadSetReturn0(td, sceSblACMgrIsVideoplayerProcess(td)); //see kmain2's content & return
+	return EINVAL;
 }
 
 int kmain2(struct thread *td, void *uap)
 {
 	RunnableInt sceSblACMgrIsVideoplayerProcess = (RunnableInt)ps4KernelDlSym("sceSblACMgrIsVideoplayerProcess");
 	ps4KernelFunctionPatchToReturn((void *)sceSblACMgrIsVideoplayerProcess, 0);
-	//size_t s = 0;
-	//int r = ps4KernelAssemblerInstructionNext(sceSblACMgrIsVideoplayerProcess, &s);
-	//ps4KernThreadSetReturn0(td, sceSblACMgrIsVideoplayerProcess()); // important notice from kernel!
+
+	ps4KernThreadSetReturn0(td, sceSblACMgrIsVideoplayerProcess(td)); // important notice from kernel!
 	return 0;
 }
 
@@ -60,6 +59,6 @@ int kmain3(struct thread *td, void *uap)
 	void *sceSblACMgrIsShellcoreProcess = ps4KernelDlSym("sceSblACMgrIsShellcoreProcess");
 	ps4KernelFunctionPatchToJump((void *)sceSblACMgrIsVideoplayerProcess, sceSblACMgrIsShellcoreProcess);
 
-	//ps4KernThreadSetReturn0(td, sceSblACMgrIsVideoplayerProcess());
+	ps4KernThreadSetReturn0(td, sceSblACMgrIsVideoplayerProcess(td));
 	return 0;
 }

kernel/kernel_run/source/main.c

@@ -5,19 +5,22 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <stdint.h>
+#include <inttypes.h>
+
 #include <unistd.h>
+
 #include <sys/syscall.h>
 
 #include <ps4/kernel.h>
 
 #include "kmain.h"
 
-
 int main(int argc, char **argv)
 {
 	char *moo = malloc(32); // A moo!! :D
 	int i;
-	uint64_t ret;
+	int64_t ret;
 
 	printf("uid: %zu\n", getuid());
 	// this syscall returns 0 after the first ps4KernelRunMain (see in a rerun process)
@@ -28,8 +31,7 @@ int main(int argc, char **argv)
 	strcpy(moo, "Hmm ... ? *yum, grass*");
 	// I will also add a ps4KernelRun(Syscall?) that uses the syscall interface instead
 	int r = ps4KernelExecute((void *)kmain, moo, &ret, NULL);
-	printf("r (sceSblACMgrIsVideoplayerProcess): %i\n", r);
-	printf("return (sceSblACMgrIsVideoplayerProcess): %i\n", ret);
+	printf("return (sceSblACMgrIsVideoplayerProcess): %i %"PRId64"\n", r, ret);
 	printf("moo: %s\n", moo);
 	printf("moo: %p\n", moo);
 
@@ -53,16 +55,16 @@ int main(int argc, char **argv)
 		printf("%02X", ((unsigned char *)moo)[i]);
 	printf("\n");
 
-	r = ps4KernelExecute((void *)kmain2, moo, NULL, NULL);
-	printf("return2 (sceSblACMgrIsVideoplayerProcess): %i\n", r);
+	r = ps4KernelExecute((void *)kmain2, moo, &ret, NULL);
+	printf("return2 (sceSblACMgrIsVideoplayerProcess): %i %"PRId64"\n", r, ret);
 
 	ps4KernelMemoryCopy(sceSblACMgrIsVideoplayerProcess, moo, 32);
 	for(i = 0; i < 32; ++i)
 		printf("%02X", ((unsigned char *)moo)[i]);
 	printf("\n");
 
-	r = ps4KernelExecute((void *)kmain3, moo, NULL, NULL);
-	printf("return3 (sceSblACMgrIsVideoplayerProcess): %i\n", r);
+	r = ps4KernelExecute((void *)kmain3, moo, &ret, NULL);
+	printf("return3 (sceSblACMgrIsVideoplayerProcess): %i %"PRId64"\n", r, ret);
 
 	ps4KernelMemoryCopy(sceSblACMgrIsVideoplayerProcess, moo, 32);
 	for(i = 0; i < 32; ++i)