From 914b75352333782b5d448e47a2f43788df3c341c Mon Sep 17 00:00:00 2001 From: ad Date: Fri, 4 Jan 2008 16:19:25 +0000 Subject: [PATCH] Linker bits for alpha. --- sys/arch/alpha/alpha/kobj_machdep.c | 156 ++++++++++++++++++++++++++++ 1 file changed, 156 insertions(+) create mode 100644 sys/arch/alpha/alpha/kobj_machdep.c diff --git a/sys/arch/alpha/alpha/kobj_machdep.c b/sys/arch/alpha/alpha/kobj_machdep.c new file mode 100644 index 000000000000..21a86d3eca4a --- /dev/null +++ b/sys/arch/alpha/alpha/kobj_machdep.c @@ -0,0 +1,156 @@ +/* $NetBSD: kobj_machdep.c,v 1.1 2008/01/04 16:19:25 ad Exp $ */ + +/*- + * Copyright (c) 2008 The NetBSD Foundation, Inc. + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +/*- + * Copyright 1996-1998 John D. Polstra. + * 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 ``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 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. + */ + +#include +__KERNEL_RCSID(0, "$NetBSD: kobj_machdep.c,v 1.1 2008/01/04 16:19:25 ad Exp $"); + +#define ELFSIZE ARCH_ELFSIZE + +#include +#include +#include +#include +#include + +int +kobj_reloc(kobj_t ko, uintptr_t relocbase, const void *data, + bool isrela, bool local) +{ + Elf_Addr *where; + Elf_Addr addr; + Elf_Addr addend; + uintptr_t rtype, symidx; + const Elf_Rel *rel; + const Elf_Rela *rela; + + if (isrela) { + rela = (const Elf_Rela *)data; + where = (Elf_Addr *) (relocbase + rela->r_offset); + addend = rela->r_addend; + rtype = ELF_R_TYPE(rela->r_info); + symidx = ELF_R_SYM(rela->r_info); + } else { + rel = (const Elf_Rel *)data; + where = (Elf_Addr *) (relocbase + rel->r_offset); + addend = *where; + rtype = ELF_R_TYPE(rel->r_info); + symidx = ELF_R_SYM(rel->r_info); + } + + switch (rtype) { + case R_ALPHA_NONE: + break; + + case R_ALPHA_REFQUAD: + addr = kobj_sym_lookup(ko, symidx); + if (addr == 0) + return -1; + addr += addend; + if (*where != addr) + *where = addr; + break; + + case R_ALPHA_GLOB_DAT: + addr = kobj_sym_lookup(ko, symidx); + if (addr == 0) + return -1; + addr += addend; + if (*where != addr) + *where = addr; + break; + + case R_ALPHA_JMP_SLOT: + /* No point in lazy binding for kernel modules. */ + addr = kobj_sym_lookup(ko, symidx); + if (addr == 0) + return -1; + if (*where != addr) + *where = addr; + break; + + case R_ALPHA_RELATIVE: + addr = relocbase + addend; + if (*where != addr) + *where = addr; + break; + + case R_ALPHA_COPY: + /* + * There shouldn't be copy relocations in kernel + * objects. + */ + printf("kobj_reloc: unexpected R_COPY relocation\n"); + return -1; + + default: + printf("kobj_reloc: unexpected relocation type %d\n", + (int)rtype); + return -1; + } + + return 0; +} + +int +kobj_machdep(kobj_t ko, void *base, size_t size, bool load) +{ + + return 0; +}