add sample program of lvgl over PEG for 5gen brain

x1/event_dumper/libbrain/libbrain.h

@@ -0,0 +1,57 @@
+#ifndef H_LIB_BRAIN_H
+#define H_LIB_BRAIN_H
+
+typedef unsigned long size_t;
+typedef void FILE;
+typedef void* DIR;
+
+struct stat {
+    unsigned int flags;
+    unsigned int st_atim;
+    unsigned int st_mtim;
+    unsigned int st_ctim;
+    size_t st_size;
+};
+
+struct dirent {
+    unsigned int type;
+    size_t size;
+    size_t filename_length;
+    char filename[260];
+};
+
+enum {
+    SEEK_SET = 0,
+    SEEK_CUR,
+    SEEK_END,
+};
+
+void *malloc(size_t size);
+void *realloc(void* ptr, size_t size);
+int free(void *ptr);
+void *memcpy(void *dst, const void *src, size_t n);
+void *memset(void *ptr, int ch, size_t n);
+FILE *fopen(const char *filename, const char *mode);
+int fclose(FILE *stream);
+int ftell(FILE *stream);
+size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
+size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
+int fseek(FILE *stream, int offset, int whence);
+int feof(FILE *stream);
+int fflush(FILE *stream);
+int fgetc(FILE *stream);
+char *fgets(char *s, int n, FILE *stream);
+int fputc(int ch, FILE *stream);
+int fputs(const char *str, FILE *stream);
+int ferror(FILE *stream);
+int remove(const char *filepath);
+int rename(const char *oldpath, const char *newpath);
+int mkdir(const char *pathname);
+int stat(const char *filepath, struct stat *buf);
+int closedir(DIR *dirp);
+struct dirent *readdir(DIR *dirp);
+DIR *opendir(const char *pathname);
+
+int printf(const char *fmt,...);
+
+#endif