1 files changed, 58 insertions, 0 deletions
diff --git a/src/dl/dl_gnu.go b/src/dl/dl_gnu.go
new file mode 100644
index 0000000..c7c409b
--- /dev/null
+++ b/src/dl/dl_gnu.go
@@ -0,0 +1,58 @@
+package dl
+
+import "unsafe"
+
+//#define _GNU_SOURCE
+//#include <stdlib.h>
+//#include <stdint.h>
+//#include <dlfcn.h>
+//const uintptr_t rtld_next = (uintptr_t)RTLD_NEXT;
+//const uintptr_t rtld_default = (uintptr_t)RTLD_DEFAULT;
+import "C"
+
+const (
+	RTLD_NOLOAD   Flag = C.RTLD_NOLOAD
+	RTLD_NODELETE Flag = C.RTLD_NODELETE
+	RTLD_DEEPBIND Flag = C.RTLD_DEEPBIND
+)
+
+// These are kinda weird in that they aren't required by the standard,
+// but they are reserved by the standard (see the documentation for
+// `dlsym(3)`).  On glibc, it takes _GNU_SOURCE to get them.
+//
+//        There are two special pseudo-handles that may be specified
+//        in handle:
+var (
+	RTLD_DEFAULT Handle = Handle{unsafe.Pointer(uintptr(C.rtld_default))}
+           // Find the first occurrence of the desired symbol using
+           // the default shared object search order.  The search will
+           // include global symbols in the executable and its
+           // dependencies, as well as symbols in shared objects that
+           // were dynamically loaded with the RTLD_GLOBAL flag.
+	RTLD_NEXT    Handle = Handle{unsafe.Pointer(uintptr(C.rtld_next))}
+           // Find the next occurrence of the desired symbol in the
+           // search order after the current object.  This allows one
+           // to provide a wrapper around a function in another shared
+           // object, so that, for example, the definition of a
+           // function in a preloaded shared object (see LD_PRELOAD in
+           // ld.so(8)) can find and invoke the "real" function
+           // provided in another shared object (or for that matter,
+           // the "next" definition of the function in cases where
+           // there are multiple layers of preloading).
+)
+
+// TODO: dlmopen
+// TODO: dlvsym
+// TODO: dladdr
+//     - dladdr1
+// TODO: dlinfo
+//     - RTLD_DI_LMID
+//     - RTLD_DI_LINKMAP
+//     - RTLD_DI_ORIGIN
+//     - RTLD_DI_SERINFO
+//     - RTLD_DI_SERINFOSIZE
+//     - RTLD_DI_MODID
+//     - RTLD_DI_DATA
+// TODO: dl_iterate_phdr
+// TODO: rtld-audit(7)
+