Break out DllMain from crypto/cryptlib.c and use it in shared libs only
Reviewed-by: Andy Polyakov <appro@openssl.org>
diff --git a/crypto/dllmain.c b/crypto/dllmain.c
new file mode 100644
index 0000000..0a229b5
--- /dev/null
+++ b/crypto/dllmain.c
@@ -0,0 +1,51 @@
+#include "internal/cryptlib_int.h"
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+# ifdef __CYGWIN__
+/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
+# include <windows.h>
+/*
+ * this has side-effect of _WIN32 getting defined, which otherwise is
+ * mutually exclusive with __CYGWIN__...
+ */
+# endif
+
+/*
+ * All we really need to do is remove the 'error' state when a thread
+ * detaches
+ */
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved);
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
+{
+ switch (fdwReason) {
+ case DLL_PROCESS_ATTACH:
+ OPENSSL_cpuid_setup();
+# if defined(_WIN32_WINNT)
+ {
+ IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *) hinstDLL;
+ IMAGE_NT_HEADERS *nt_headers;
+
+ if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) {
+ nt_headers = (IMAGE_NT_HEADERS *) ((char *)dos_header
+ + dos_header->e_lfanew);
+ if (nt_headers->Signature == IMAGE_NT_SIGNATURE &&
+ hinstDLL !=
+ (HINSTANCE) (nt_headers->OptionalHeader.ImageBase))
+ OPENSSL_NONPIC_relocated = 1;
+ }
+ }
+# endif
+ break;
+ case DLL_THREAD_ATTACH:
+ break;
+ case DLL_THREAD_DETACH:
+ OPENSSL_thread_stop();
+ break;
+ case DLL_PROCESS_DETACH:
+ break;
+ }
+ return (TRUE);
+}
+#endif
+
