move tlsdesc and internal dl function declarations to dynlink.h

src/ldso/__dlsym.c

@@ -1,8 +1,7 @@
 #include <dlfcn.h>
+#include "dynlink.h"
 #include "libc.h"
 
-hidden void __dl_seterr(const char *, ...);
-
 static void *stub_dlsym(void *restrict p, const char *restrict s, void *restrict ra)
 {
 	__dl_seterr("Symbol not found: %s", s);

src/ldso/dlclose.c

@@ -1,8 +1,7 @@
 #include <dlfcn.h>
+#include "dynlink.h"
 #include "libc.h"
 
-hidden int __dl_invalid_handle(void *);
-
 int dlclose(void *p)
 {
 	return __dl_invalid_handle(p);

src/ldso/dlerror.c

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include "pthread_impl.h"
+#include "dynlink.h"
 #include "libc.h"
 
 char *dlerror()
@@ -50,8 +51,6 @@ hidden void __dl_seterr(const char *fmt, ...)
 	va_end(ap);
 }
 
-hidden int __dl_invalid_handle(void *);
-
 static int stub_invalid_handle(void *h)
 {
 	__dl_seterr("Invalid library handle %p", (void *)h);

src/ldso/dlinfo.c

@@ -1,11 +1,8 @@
 #define _GNU_SOURCE
 #include <dlfcn.h>
+#include "dynlink.h"
 #include "libc.h"
 
-hidden int __dl_invalid_handle(void *);
-
-hidden void __dl_seterr(const char *, ...);
-
 int dlinfo(void *dso, int req, void *res)
 {
 	if (__dl_invalid_handle(dso)) return -1;

src/ldso/dlopen.c

@@ -1,8 +1,7 @@
 #include <dlfcn.h>
+#include "dynlink.h"
 #include "libc.h"
 
-hidden void __dl_seterr(const char *, ...);
-
 static void *stub_dlopen(const char *file, int mode)
 {
 	__dl_seterr("Dynamic loading not supported");

src/ldso/dlsym.c

@@ -1,6 +1,5 @@
 #include <dlfcn.h>
-
-void *__dlsym(void *restrict, const char *restrict, void *restrict);
+#include "dynlink.h"
 
 void *dlsym(void *restrict p, const char *restrict s)
 {

src/ldso/tlsdesc.c

@@ -1,8 +1,7 @@
 #include <stddef.h>
+#include <dynlink.h>
 #include "libc.h"
 
-hidden ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
-
 ptrdiff_t __tlsdesc_static()
 {
 	return 0;