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libdl: RTLD_DEFAULT searches the global symbol table.

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This commit is contained in:
Chris Johns
2014-11-04 16:34:37 +11:00
parent 540b7b4178
commit 028ed6c390
1 changed files with 15 additions and 6 deletions
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15
cpukit/libdl/dlfcn.c
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@@ -97,19 +97,28 @@ void*
dlsym (void* handle, const char *symbol) dlsym (void* handle, const char *symbol)
{ {
rtems_rtl_obj_t* obj; rtems_rtl_obj_t* obj;
rtems_rtl_obj_sym_t* sym; rtems_rtl_obj_sym_t* sym = NULL;
void* symval = NULL; void* symval = NULL;
if (!rtems_rtl_lock ()) if (!rtems_rtl_lock ())
return NULL; return NULL;
/*
* If the handle is "default" search the global symbol table.
*/
if (handle == RTLD_DEFAULT)
{
sym = rtems_rtl_symbol_global_find (symbol);
}
else
{
obj = dl_get_obj_from_handle (handle); obj = dl_get_obj_from_handle (handle);
if (obj) if (obj)
{
sym = rtems_rtl_symbol_obj_find (obj, symbol); sym = rtems_rtl_symbol_obj_find (obj, symbol);
}
if (sym) if (sym)
symval = sym->value; symval = sym->value;
}
rtems_rtl_unlock (); rtems_rtl_unlock ();