From 92ab5d8d156545ab0daff6062d7a519861684fb6 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sun, 26 Jun 2011 21:21:04 -0400 Subject: fix resolving symbols in objects loaded in RTLD_LOCAL mode basically we temporarily make the library and all its dependencies part of the global namespace but only for the duration of performing relocations, then return them to their former state. --- src/ldso/dynlink.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c index 35ff9626..305d70e0 100644 --- a/src/ldso/dynlink.c +++ b/src/ldso/dynlink.c @@ -493,6 +493,9 @@ void *dlopen(const char *file, int mode) if (setjmp(rtld_fail)) { /* Clean up anything new that was (partially) loaded */ + if (p->deps) for (i=0; p->deps[i]; i++) + if (p->deps[i]->global < 0) + p->deps[i]->global = 0; for (p=orig_tail->next; p; p=next) { next = p->next; munmap(p->map, p->map_len); @@ -511,7 +514,15 @@ void *dlopen(const char *file, int mode) /* First load handling */ if (!p->deps) { load_deps(p); + for (i=0; p->deps[i]; i++) + if (!p->deps[i]->global) + p->deps[i]->global = -1; + if (!p->global) p->global = -1; reloc_all(p); + for (i=0; p->deps[i]; i++) + if (p->deps[i]->global < 0) + p->deps[i]->global = 0; + if (p->global < 0) p->global = 0; } if (mode & RTLD_GLOBAL) { -- cgit v1.2.1