implement minimal dlinfo function

diff --git a/include/dlfcn.h b/include/dlfcn.h
index e2f57b5343f842a0073096247cc80ec9bd31df70..db26194b22845389e4b2ea2add95ccfec097e089 100644 (file)
--- a/include/dlfcn.h
+++ b/include/dlfcn.h
@@ -17,6 +17,8 @@ extern "C" {
 #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);
@@ -30,6 +32,7 @@ typedef struct {
        void *dli_saddr;
 } Dl_info;
 int dladdr(void *, Dl_info *);
+int dlinfo(void *, int, void *);
 #endif
 
 #ifdef __cplusplus

diff --git a/src/ldso/dlinfo.c b/src/ldso/dlinfo.c
new file mode 100644 (file)
index 0000000..4748eaf
--- /dev/null
+++ b/src/ldso/dlinfo.c
@@ -0,0 +1,8 @@
+#include <dlfcn.h>
+
+int __dlinfo(void *, int, void *);
+
+int dlinfo(void *dso, int req, void *res)
+{
+       return __dlinfo(dso, req, res);
+}

diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
index ac4b669f178bdb94d5d674e1a6fbea196c3b0c19..7031d03a6ddd671b9463c4b8f31007fe18207ed9 100644 (file)
--- a/src/ldso/dynlink.c
+++ b/src/ldso/dynlink.c
@@ -1273,6 +1273,18 @@ int __dladdr (void *addr, Dl_info *info)
 }
 #endif
 
+int __dlinfo(void *dso, int req, void *res)
+{
+       if (invalid_dso_handle(dso)) return -1;
+       if (req != RTLD_DI_LINKMAP) {
+               snprintf(errbuf, sizeof errbuf, "Unsupported request %d", req);
+               errflag = 1;
+               return -1;
+       }
+       *(struct link_map **)res = dso;
+       return 0;
+}
+
 char *dlerror()
 {
        if (!errflag) return 0;