Added support for dladdr()
dladdr() is a GNU extension function, which allows the caller to retrieve
symbol information for a specified memory address. It is useful for things
like generating backtrace information at runtime.
Change-Id: I3a1def1a6c9c666d93e1e97b7d260dfa5b9b79a9
diff --git a/libc/include/dlfcn.h b/libc/include/dlfcn.h
index 9582796..f84d1d1 100644
--- a/libc/include/dlfcn.h
+++ b/libc/include/dlfcn.h
@@ -32,10 +32,22 @@
__BEGIN_DECLS
+typedef struct {
+ const char *dli_fname; /* Pathname of shared object that
+ contains address */
+ void *dli_fbase; /* Address at which shared object
+ is loaded */
+ const char *dli_sname; /* Name of nearest symbol with address
+ lower than addr */
+ void *dli_saddr; /* Exact address of symbol named
+ in dli_sname */
+} Dl_info;
+
extern void* dlopen(const char* filename, int flag);
extern int dlclose(void* handle);
extern const char* dlerror(void);
extern void* dlsym(void* handle, const char* symbol);
+extern int dladdr(void* addr, Dl_info *info);
enum {
RTLD_NOW = 0,