[Minios-devel] [UNIKRAFT PATCH 2/4] lib/posix-libdl: Import dlfcn.h from musl

[Costin Lupu <costin.lupu@xxxxxxxxx>]

Copied as is from the official musl git mirror
git://git.musl-libc.org/musl, commit 6fcb440d.

Original file locations:
* include/dlfcn.h

It's not important where we copy these declarations from given that we intend
to use only stubs. We chose musl only for consistency with previous code 
imports.

Signed-off-by: Andrei Gogonea <andrei.gogonea09@xxxxxxxxx>
Signed-off-by: Teodora Serbanescu <teo.serbanescu16@xxxxxxxxx>
Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
---
 lib/posix-libdl/include/dlfcn.h | 42 +++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 lib/posix-libdl/include/dlfcn.h

diff --git a/lib/posix-libdl/include/dlfcn.h b/lib/posix-libdl/include/dlfcn.h
new file mode 100644
index 00000000..78fb0733
--- /dev/null
+++ b/lib/posix-libdl/include/dlfcn.h
@@ -0,0 +1,42 @@
+#ifndef        _DLFCN_H
+#define        _DLFCN_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <features.h>
+
+#define RTLD_LAZY   1
+#define RTLD_NOW    2
+#define RTLD_NOLOAD 4
+#define RTLD_NODELETE 4096
+#define RTLD_GLOBAL 256
+#define RTLD_LOCAL  0
+
+#define RTLD_NEXT    ((void *)-1)
+#define RTLD_DEFAULT ((void *)0)
+
+#define RTLD_DI_LINKMAP 2
+
+int    dlclose(void *);
+char  *dlerror(void);
+void  *dlopen(const char *, int);
+void  *dlsym(void *__restrict, const char *__restrict);
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef struct {
+       const char *dli_fname;
+       void *dli_fbase;
+       const char *dli_sname;
+       void *dli_saddr;
+} Dl_info;
+int dladdr(const void *, Dl_info *);
+int dlinfo(void *, int, void *);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
-- 
2.20.1


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