/* $NetBSD: elf_end.c,v 1.3 2010/10/31 05:03:12 yamt Exp $ */ /*- * Copyright (c) 2006 Joseph Koshy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #if HAVE_NBTOOL_CONFIG_H # include "nbtool_config.h" #endif #include /* __FBSDID("$FreeBSD: src/lib/libelf/elf_end.c,v 1.1.10.1.2.1 2009/10/25 01:10:29 kensmith Exp $"); */ #include #include #include #include #include "_libelf.h" int elf_end(Elf *e) { Elf *sv; Elf_Scn *scn, *tscn; if (e == NULL || e->e_activations == 0) return (0); if (--e->e_activations > 0) return (e->e_activations); assert(e->e_activations == 0); while (e && e->e_activations == 0) { switch (e->e_kind) { case ELF_K_AR: /* * If we still have open child descriptors, we * need to defer reclaiming resources till all * the child descriptors for the archive are * closed. */ if (e->e_u.e_ar.e_nchildren > 0) return (0); break; case ELF_K_ELF: /* * Reclaim all section descriptors. */ STAILQ_FOREACH_SAFE(scn, &e->e_u.e_elf.e_scn, s_next, tscn) scn = _libelf_release_scn(scn); break; case ELF_K_NUM: assert(0); default: break; } if (e->e_flags & LIBELF_F_MMAP) (void) munmap(e->e_rawfile, e->e_rawsize); if (e->e_flags & LIBELF_F_MALLOC) (void) free(e->e_rawfile); sv = e; if ((e = e->e_parent) != NULL) e->e_u.e_ar.e_nchildren--; sv = _libelf_release_elf(sv); } return (0); }