(PSP) Add PSP target

Makefile

@@ -176,7 +176,11 @@ clean:
 	$(RM) -r .opk_data
 
 $(TARGET): $(OBJS)
+ifeq ($(STATIC_LINKING), 1)
+	$(AR) rcs $@ $(OBJS)
+else
 	$(CC) -o $@ $(CFLAGS) $^ $(LDFLAGS) $(LDLIBS)
+endif
 
 pprof: platform/linux/pprof.c
 	$(CC) -O2 -ggdb -DPPROF -DPPROF_TOOL -I../../ -I. $^ -o $@

Makefile.libretro

@@ -75,6 +75,19 @@ else ifeq ($(platform), psp1)
    CC = psp-gcc$(EXE_EXT)
    AR = psp-ar$(EXE_EXT)
    CFLAGS += -DPSP -G0
+	STATIC_LINKING = 1
+
+asm_memory = 0
+asm_render = 0
+asm_ym2612 = 0
+asm_misc = 0
+asm_cdpico = 0
+asm_cdmemory = 0
+asm_mix = 0
+   use_cyclone = 0
+   use_fame = 1
+   use_drz80 = 0
+   use_cz80 = 1
 else ifeq ($(platform), xenon)
    TARGET := $(TARGET_NAME)_libretro_xenon360.a
    CC = xenon-gcc$(EXE_EXT)

platform/libretro.c

@@ -6,12 +6,18 @@
  * See COPYING file in the top-level directory.
  */
 
+#ifdef PSP
+#define NO_MMAP
+#endif
+
 #define _GNU_SOURCE 1 // mremap
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>
 #ifndef _WIN32
+#ifndef NO_MMAP
 #include <sys/mman.h>
+#endif
 #else
 #include <io.h>
 #include <windows.h>
@@ -161,6 +167,30 @@ static void munmap(void *addr, size_t length)
 	UnmapViewOfFile(addr);
 	/* ruh-ro, we leaked handle from CreateFileMapping() ... */
 }
+#elif defined(NO_MMAP)
+#define 	PROT_EXEC   0x04
+#define MAP_FAILED 0
+#define PROT_READ 0
+#define PROT_WRITE 0
+#define MAP_PRIVATE 0
+#define MAP_ANONYMOUS 0
+
+void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off)
+{
+   return malloc(len);
+}
+
+void munmap(void *base_addr, size_t len)
+{
+   free(base_addr);
+}
+
+int mprotect(void *addr, size_t len, int prot)
+{
+   /* stub - not really needed at this point since this codepath has no dynarecs */
+   return 0;
+}
+
 #endif
 
 #ifndef MAP_ANONYMOUS