app: Load kernel plugins from memory

.github/workflows/c-cpp.yml

@@ -20,18 +20,6 @@ jobs:
     - name: Compile project
       run: make
     
-    - uses: actions/upload-artifact@v2
-      with:
-        path: audio_driver/audio_driver.prx
-    
-    - uses: actions/upload-artifact@v2
-      with:
-        path: display_driver/display_driver.prx
-    
-    - uses: actions/upload-artifact@v2
-      with:
-        path: fs_driver/fs_driver.prx
-    
     - uses: actions/upload-artifact@v2
       with:
         path: app/EBOOT.PBP

app/Makefile

@@ -1,14 +1,15 @@
 TARGET = CMFileManager
 
 SOURCES   := data drivers source source/audio source/gui ../libs/libnsbmp ../libs/libnsgif
-CFILES    := $(foreach dir,$(SOURCES), $(wildcard $(dir)/*.c))
-SFILES    := $(foreach dir,$(SOURCES), $(wildcard $(dir)/*.S))
-CPPFILES  := $(foreach dir,$(SOURCES), $(wildcard $(dir)/*.cpp))
-GFXFILES  := $(foreach dir,$(SOURCES), $(wildcard $(dir)/*.png))
-FONTFILES := $(foreach dir,$(SOURCES), $(wildcard $(dir)/*.pgf))
+CFILES    := $(foreach dir, $(SOURCES), $(wildcard $(dir)/*.c))
+SFILES    := $(foreach dir, $(SOURCES), $(wildcard $(dir)/*.S))
+CPPFILES  := $(foreach dir, $(SOURCES), $(wildcard $(dir)/*.cpp))
+FONTFILES := $(foreach dir, $(SOURCES), $(wildcard $(dir)/*.pgf))
+GFXFILES  := $(foreach dir, $(SOURCES), $(wildcard $(dir)/*.png))
+PRXFILES  := $(foreach dir, $(SOURCES), $(wildcard $(dir)/*.prx))
 
-OBJS := $(addsuffix .o,$(BINFILES)) \
-        $(CFILES:.c=.o) $(SFILES:.S=.o) $(CPPFILES:.cpp=.o) $(GFXFILES:.png=.o) $(FONTFILES:.pgf=.o)
+OBJS := $(addsuffix .o,$(BINFILES)) $(CFILES:.c=.o) $(SFILES:.S=.o) $(CPPFILES:.cpp=.o) \
+        $(FONTFILES:.pgf=.o) $(GFXFILES:.png=.o) $(PRXFILES:.prx=.o)
 
 VERSION_MAJOR :=  4
 VERSION_MINOR :=  1
@@ -30,15 +31,18 @@ LIBS    = -lintrafont -lglib2d -lxmp -lmpg123 -lvorbisfile -lvorbis -lopusfile -
           -lpspkubridge -lpspsystemctrl_user -lpspusbdevice \
           -lpspgu -lpspvram -lpspaudio -lpsppower -lpspreg -lpspusb -lpspusbstor -lpspumd
 
-EXTRA_TARGETS    = EBOOT.PBP
-PSP_EBOOT_TITLE  = CM File Manager PSP v$(VERSION_MAJOR).$(VERSION_MINOR)$(VERSION_MICRO)
-PSP_EBOOT_ICON   = ../ICON0.PNG
+EXTRA_TARGETS   = EBOOT.PBP
+PSP_EBOOT_TITLE = CM File Manager PSP v$(VERSION_MAJOR).$(VERSION_MINOR)$(VERSION_MICRO)
+PSP_EBOOT_ICON  = ../ICON0.PNG
 
 PSPSDK=$(shell psp-config --pspsdk-path)
 include $(PSPSDK)/lib/build.mak
 
+%.o: %.pgf
+	bin2o -i $< $@ $(addsuffix _pgf, $(basename $(notdir $<) ))
+
 %.o: %.png
 	bin2o -i $< $@ $(addsuffix _png, $(basename $(notdir $<) ))
 
-%.o: %.pgf
-	bin2o -i $< $@ $(addsuffix _pgf, $(basename $(notdir $<) ))
+%.o: %.prx
+	bin2o -i $< $@ $(addsuffix _prx, $(basename $(notdir $<) ))

app/source/utils.cpp

@@ -21,6 +21,9 @@ enum PspCtrlButtons PSP_CTRL_ENTER, PSP_CTRL_CANCEL;
 BROWSE_STATE device = BROWSE_STATE_EXTERNAL;
 int g_psp_language = PSP_SYSTEMPARAM_LANGUAGE_ENGLISH;
 
+extern unsigned char audio_driver_prx_start[], display_driver_prx_start[], fs_driver_prx_start[];
+extern unsigned int audio_driver_prx_size, display_driver_prx_size, fs_driver_prx_size;
+
 namespace Utils {
     constexpr unsigned int CTRL_DEADZONE_DELAY = 500000;
     constexpr unsigned int CTRL_DELAY = 100000;
@@ -34,12 +37,14 @@ namespace Utils {
     typedef struct {
         const char *path = nullptr;
         int id = 0;
+        unsigned char *data = nullptr;
+        unsigned int size = 0;
     } Module;
     
     static std::vector<Module> kernel_modules {
-        { "audio_driver.prx", -1, },
-        { "display_driver.prx", -1, },
-        { "fs_driver.prx", -1, }
+        { "audio_driver.prx", -1, audio_driver_prx_start, audio_driver_prx_size },
+        { "display_driver.prx", -1, display_driver_prx_start, display_driver_prx_size },
+        { "fs_driver.prx", -1, fs_driver_prx_start, fs_driver_prx_size }
     };
     
     static std::vector<Module> usb_modules {
@@ -110,6 +115,31 @@ namespace Utils {
         return ret;
     }
 
+    // Basically removes and re-creates prx from memory -> then remove it after inital load
+    static int LoadStartModuleMem(const char *path, const void *buf, SceSize size) {
+        int ret = 0;
+        SceUID modID = 0;
+        
+        // Don't care if this passes or fails
+        sceIoRemove(path);
+        SceUID file = sceIoOpen(path, PSP_O_WRONLY | PSP_O_CREAT, 0777);
+        sceIoWrite(file, buf, size);
+        sceIoClose(file);
+        
+        if (R_FAILED(ret = modID = kuKernelLoadModule(path, 0, nullptr))) {
+            Log::Error("kuKernelLoadModule(%s) failed: 0x%08x\n", path, ret);
+            return ret;
+        }
+        
+        if (R_FAILED(ret = sceKernelStartModule(modID, 0, nullptr, nullptr, nullptr))) {
+            Log::Error("sceKernelStartModule(%s) failed: 0x%08x\n", path, ret);
+            return ret;
+        }
+        
+        sceIoRemove(path);
+        return 0;
+    }
+
     static void StopUnloadModules(SceUID modID) {
         sceKernelStopModule(modID, 0, nullptr, nullptr, nullptr);
         sceKernelUnloadModule(modID);
@@ -216,7 +246,7 @@ namespace Utils {
 
     void InitKernelDrivers(void) {
         for (unsigned int i = 0; i < kernel_modules.size(); ++i)
-            kernel_modules[i].id = Utils::LoadStartModule(kernel_modules[i].path);
+            kernel_modules[i].id = Utils::LoadStartModuleMem(kernel_modules[i].path, kernel_modules[i].data, kernel_modules[i].size);
         
         Utils::InitUSB();
     }

audio_driver/Makefile

@@ -24,3 +24,4 @@ include $(PSPSDK)/lib/build_prx.mak
 all:
 	psp-build-exports -s $(PRX_EXPORTS)
 	mv audio_driver.S "../app/drivers/"
+	mv audio_driver.prx "../app/data/"

display_driver/Makefile

@@ -24,3 +24,4 @@ include $(PSPSDK)/lib/build_prx.mak
 all:
 	psp-build-exports -s $(PRX_EXPORTS)
 	mv display_driver.S "../app/drivers/"
+	mv display_driver.prx "../app/data/"

fs_driver/Makefile

@@ -24,3 +24,4 @@ include $(PSPSDK)/lib/build_prx.mak
 all:
 	psp-build-exports -s $(PRX_EXPORTS)
 	mv fs_driver.S "../app/drivers/"
+	mv fs_driver.prx "../app/data/"