diff --git a/src/core/hle/libraries/libc/libc.cpp b/src/core/hle/libraries/libc/libc.cpp
index 127c3eb9c..b73e1d8f5 100644
--- a/src/core/hle/libraries/libc/libc.cpp
+++ b/src/core/hle/libraries/libc/libc.cpp
@@ -455,6 +455,9 @@ void libcSymbolsRegister(Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("DfivPArhucg", "libc", 1, "libc", 1, 1, ps4_memcmp);
     LIB_FUNCTION("Q3VBxCXhUHs", "libc", 1, "libc", 1, 1, ps4_memcpy);
     LIB_FUNCTION("8zTFvBIAIN8", "libc", 1, "libc", 1, 1, ps4_memset);
+    LIB_FUNCTION("9yDWMxEFdJU", "libc", 1, "libc", 1, 1, ps4_strrchr);
+    LIB_FUNCTION("aesyjrHVWy4", "libc", 1, "libc", 1, 1, ps4_strncmp);
+    LIB_FUNCTION("g7zzzLDYGw0", "libc", 1, "libc", 1, 1, ps4_strdup);
 
     // stdio functions
     LIB_FUNCTION("xeYO4u7uyJ0", "libc", 1, "libc", 1, 1, ps4_fopen);
@@ -462,6 +465,11 @@ void libcSymbolsRegister(Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("Q2V+iqvjgC0", "libc", 1, "libc", 1, 1, ps4_vsnprintf);
     LIB_FUNCTION("YQ0navp+YIc", "libc", 1, "libc", 1, 1, ps4_puts);
     LIB_FUNCTION("fffwELXNVFA", "libc", 1, "libc", 1, 1, ps4_fprintf);
+    LIB_FUNCTION("QMFyLoqNxIg", "libc", 1, "libc", 1, 1, ps4_setvbuf);
+    LIB_FUNCTION("uodLYyUip20", "libc", 1, "libc", 1, 1, ps4_fclose);
+    LIB_FUNCTION("rQFVBXp-Cxg", "libc", 1, "libc", 1, 1, ps4_fseek);
+    LIB_FUNCTION("SHlt7EhOtqA", "libc", 1, "libc", 1, 1, ps4_fgetpos);
+    LIB_FUNCTION("lbB+UlZqVG0", "libc", 1, "libc", 1, 1, ps4_fread);
 
     // misc
     LIB_OBJ("P330P3dFF68", "libc", 1, "libc", 1, 1, &g_need_sceLibc);
diff --git a/src/core/hle/libraries/libc/libc_stdio.cpp b/src/core/hle/libraries/libc/libc_stdio.cpp
index 67568e297..4292ed1ff 100644
--- a/src/core/hle/libraries/libc/libc_stdio.cpp
+++ b/src/core/hle/libraries/libc/libc_stdio.cpp
@@ -10,7 +10,38 @@ namespace Core::Libraries::LibC {
 
 std::FILE* PS4_SYSV_ABI ps4_fopen(const char* filename, const char* mode) {
     auto* mnt = Common::Singleton<Core::FileSys::MntPoints>::Instance();
-    return std::fopen(mnt->GetHostFile(filename).c_str(), mode);
+    FILE* f = std::fopen(mnt->GetHostFile(filename).c_str(), mode);
+    if (f != nullptr) {
+        LOG_INFO(Lib_LibC, "fopen = {}", mnt->GetHostFile(filename).c_str());
+    } else {
+        LOG_INFO(Lib_LibC, "fopen can't open = {}", mnt->GetHostFile(filename).c_str());
+    }
+    return f;
+}
+
+int PS4_SYSV_ABI ps4_fclose(FILE* stream) {
+    LOG_INFO(Lib_LibC, "callled");
+    int ret = 0;
+    if (stream != nullptr) {
+        ret = fclose(stream);
+    }
+    return ret;
+}
+
+int PS4_SYSV_ABI ps4_setvbuf(FILE* stream, char* buf, int mode, size_t size) {
+    return setvbuf(stream, buf, mode, size);
+}
+
+int PS4_SYSV_ABI ps4_fseek(FILE* stream, long offset, int whence) {
+    return fseek(stream, offset, whence);
+}
+
+int PS4_SYSV_ABI ps4_fgetpos(FILE* stream, fpos_t* pos) {
+    return fgetpos(stream, pos);
+}
+
+std::size_t PS4_SYSV_ABI ps4_fread(void* ptr, size_t size, size_t nmemb, FILE* stream) {
+    return fread(ptr, size, nmemb, stream);
 }
 
 int PS4_SYSV_ABI ps4_printf(VA_ARGS) {
diff --git a/src/core/hle/libraries/libc/libc_stdio.h b/src/core/hle/libraries/libc/libc_stdio.h
index c2911f36a..4ba18e9f6 100644
--- a/src/core/hle/libraries/libc/libc_stdio.h
+++ b/src/core/hle/libraries/libc/libc_stdio.h
@@ -13,5 +13,10 @@ int PS4_SYSV_ABI ps4_printf(VA_ARGS);
 int PS4_SYSV_ABI ps4_vsnprintf(char* s, size_t n, const char* format, VaList* arg);
 int PS4_SYSV_ABI ps4_puts(const char* s);
 int PS4_SYSV_ABI ps4_fprintf(FILE* file, VA_ARGS);
+int PS4_SYSV_ABI ps4_setvbuf(FILE* stream, char* buf, int mode, size_t size);
+int PS4_SYSV_ABI ps4_fclose(FILE* stream);
+int PS4_SYSV_ABI ps4_fseek(FILE* stream, long offset, int whence);
+int PS4_SYSV_ABI ps4_fgetpos(FILE* stream, fpos_t* pos);
+std::size_t PS4_SYSV_ABI ps4_fread(void* ptr, size_t size, size_t nmemb, FILE* stream);
 
 } // namespace Core::Libraries::LibC
diff --git a/src/core/hle/libraries/libc/libc_string.cpp b/src/core/hle/libraries/libc/libc_string.cpp
index 80ce63253..55fb3f1fc 100644
--- a/src/core/hle/libraries/libc/libc_string.cpp
+++ b/src/core/hle/libraries/libc/libc_string.cpp
@@ -42,4 +42,19 @@ size_t PS4_SYSV_ABI ps4_strlen(const char* str) {
     return std::strlen(str);
 }
 
+char* PS4_SYSV_ABI ps4_strrchr(const char* s, int c) {
+    return (char*)strrchr(s, c);
+}
+
+int PS4_SYSV_ABI ps4_strncmp(const char* s1, const char* s2, size_t n) {
+    return strncmp(s1, s2, n);
+}
+
+char* PS4_SYSV_ABI ps4_strdup(const char* str1) {
+    char* dup = (char*)std::malloc(std::strlen(str1) + 1);
+    if (dup != NULL)
+        strcpy(dup, str1);
+    return dup;
+}
+
 } // namespace Core::Libraries::LibC
diff --git a/src/core/hle/libraries/libc/libc_string.h b/src/core/hle/libraries/libc/libc_string.h
index f8a197ee3..d446146b9 100644
--- a/src/core/hle/libraries/libc/libc_string.h
+++ b/src/core/hle/libraries/libc/libc_string.h
@@ -17,5 +17,8 @@ void* PS4_SYSV_ABI ps4_memmove(void* dest, const void* src, std::size_t count);
 char* PS4_SYSV_ABI ps4_strcpy(char* destination, const char* source);
 char* PS4_SYSV_ABI ps4_strcat(char* dest, const char* src);
 size_t PS4_SYSV_ABI ps4_strlen(const char* str);
+char* PS4_SYSV_ABI ps4_strrchr(const char* s, int c);
+int PS4_SYSV_ABI ps4_strncmp(const char* s1, const char* s2, size_t n);
+char* PS4_SYSV_ABI ps4_strdup(const char* str1);
 
 } // namespace Core::Libraries::LibC