#include #include #include #include #include #ifdef USE_HOST_LIBC #define LIBBAR "libnative-bar.so" #define LIBBAZ "libnative-baz.so" #else #define LIBBAR "libbar.so" #define LIBBAZ "libbaz.so" #endif typedef char *strfn(void); int main() { void *baz = dlopen(LIBBAZ, RTLD_LAZY | RTLD_GLOBAL); assert(baz); // At this point, baz is loaded in the global scope. When we load bar locally, // there is a relocation to `foo_baz_conflict` which is defined in both // foo (which is a dependency of bar), and baz. In this case baz should win // since we search the global scope first. void *bar = dlopen(LIBBAR, RTLD_LAZY | RTLD_LOCAL); assert(bar); strfn *bfn = dlsym(bar, "bar_calls_foo_baz_conflict"); assert(!strcmp(bfn(), "resolved to baz")); // TODO: Test RTLD_DEEPBIND and DT_SYMBOLIC once we implement it. dlclose(bar); dlclose(baz); }