diff options
Diffstat (limited to 'sys/ia64/ia64/elf_machdep.c')
| -rw-r--r-- | sys/ia64/ia64/elf_machdep.c | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/sys/ia64/ia64/elf_machdep.c b/sys/ia64/ia64/elf_machdep.c deleted file mode 100644 index 05cb641..0000000 --- a/sys/ia64/ia64/elf_machdep.c +++ /dev/null @@ -1,323 +0,0 @@ -/*- - * 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. - * - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/kernel.h> -#include <sys/systm.h> -#include <sys/exec.h> -#include <sys/imgact.h> -#include <sys/malloc.h> -#include <sys/proc.h> -#include <sys/namei.h> -#include <sys/fcntl.h> -#include <sys/vnode.h> -#include <sys/linker.h> -#include <sys/sysent.h> -#include <sys/imgact_elf.h> -#include <sys/syscall.h> -#include <sys/signalvar.h> - -#include <vm/vm.h> -#include <vm/vm_param.h> - -#include <machine/elf.h> -#include <machine/frame.h> -#include <machine/md_var.h> -#include <machine/unwind.h> - -Elf_Addr link_elf_get_gp(linker_file_t); - -extern Elf_Addr fptr_storage[]; - -struct sysentvec elf64_freebsd_sysvec = { - .sv_size = SYS_MAXSYSCALL, - .sv_table = sysent, - .sv_mask = 0, - .sv_sigsize = 0, - .sv_sigtbl = NULL, - .sv_errsize = 0, - .sv_errtbl = NULL, - .sv_transtrap = NULL, - .sv_fixup = __elfN(freebsd_fixup), - .sv_sendsig = sendsig, - .sv_sigcode = NULL, - .sv_szsigcode = NULL, - .sv_prepsyscall = NULL, - .sv_name = "FreeBSD ELF64", - .sv_coredump = __elfN(coredump), - .sv_imgact_try = NULL, - .sv_minsigstksz = MINSIGSTKSZ, - .sv_pagesize = PAGE_SIZE, - .sv_minuser = VM_MIN_ADDRESS, - .sv_maxuser = VM_MAXUSER_ADDRESS, - .sv_usrstack = USRSTACK, - .sv_psstrings = PS_STRINGS, - .sv_stackprot = VM_PROT_READ|VM_PROT_WRITE, - .sv_copyout_strings = exec_copyout_strings, - .sv_setregs = exec_setregs, - .sv_fixlimit = NULL, - .sv_maxssiz = NULL, - .sv_flags = SV_ABI_FREEBSD | SV_LP64, - .sv_set_syscall_retval = cpu_set_syscall_retval, - .sv_fetch_syscall_args = cpu_fetch_syscall_args, - .sv_syscallnames = syscallnames, - .sv_schedtail = NULL, -}; - -static Elf64_Brandinfo freebsd_brand_info = { - .brand = ELFOSABI_FREEBSD, - .machine = EM_IA_64, - .compat_3_brand = "FreeBSD", - .emul_path = NULL, - .interp_path = "/libexec/ld-elf.so.1", - .sysvec = &elf64_freebsd_sysvec, - .interp_newpath = NULL, - .brand_note = &elf64_freebsd_brandnote, - .flags = BI_CAN_EXEC_DYN | BI_BRAND_NOTE -}; -SYSINIT(elf64, SI_SUB_EXEC, SI_ORDER_FIRST, - (sysinit_cfunc_t)elf64_insert_brand_entry, &freebsd_brand_info); - -static Elf64_Brandinfo freebsd_brand_oinfo = { - .brand = ELFOSABI_FREEBSD, - .machine = EM_IA_64, - .compat_3_brand = "FreeBSD", - .emul_path = NULL, - .interp_path = "/usr/libexec/ld-elf.so.1", - .sysvec = &elf64_freebsd_sysvec, - .interp_newpath = NULL, - .brand_note = &elf64_freebsd_brandnote, - .flags = BI_CAN_EXEC_DYN | BI_BRAND_NOTE -}; -SYSINIT(oelf64, SI_SUB_EXEC, SI_ORDER_ANY, - (sysinit_cfunc_t)elf64_insert_brand_entry, &freebsd_brand_oinfo); - - -void -elf64_dump_thread(struct thread *td, void *dst, size_t *off __unused) -{ - - /* Flush the dirty registers onto the backingstore. */ - if (dst == NULL) - ia64_flush_dirty(td, &td->td_frame->tf_special); -} - - -static Elf_Addr -lookup_fdesc(linker_file_t lf, Elf_Size symidx, elf_lookup_fn lookup) -{ - linker_file_t top; - Elf_Addr addr; - const char *symname; - int i; - static int eot = 0; - - addr = lookup(lf, symidx, 0); - if (addr == 0) { - top = lf; - symname = elf_get_symname(top, symidx); - for (i = 0; i < top->ndeps; i++) { - lf = top->deps[i]; - addr = (Elf_Addr)linker_file_lookup_symbol(lf, - symname, 0); - if (addr != 0) - break; - } - if (addr == 0) - return (0); - } - - if (eot) - return (0); - - /* - * Lookup and/or construct OPD - */ - for (i = 0; i < 8192; i += 2) { - if (fptr_storage[i] == addr) - return (Elf_Addr)(fptr_storage + i); - - if (fptr_storage[i] == 0) { - fptr_storage[i] = addr; - fptr_storage[i+1] = link_elf_get_gp(lf); - return (Elf_Addr)(fptr_storage + i); - } - } - - printf("%s: fptr table full\n", __func__); - eot = 1; - - return (0); -} - -/* Process one elf relocation with addend. */ -static int -elf_reloc_internal(linker_file_t lf, Elf_Addr relocbase, const void *data, - int type, int local, elf_lookup_fn lookup) -{ - Elf_Addr *where; - Elf_Addr addend, addr; - Elf_Size rtype, symidx; - const Elf_Rel *rel; - const Elf_Rela *rela; - - switch (type) { - case ELF_RELOC_REL: - rel = (const Elf_Rel *)data; - where = (Elf_Addr *)(relocbase + rel->r_offset); - rtype = ELF_R_TYPE(rel->r_info); - symidx = ELF_R_SYM(rel->r_info); - switch (rtype) { - case R_IA_64_DIR64LSB: - case R_IA_64_FPTR64LSB: - case R_IA_64_REL64LSB: - addend = *where; - break; - default: - addend = 0; - break; - } - break; - case ELF_RELOC_RELA: - rela = (const Elf_Rela *)data; - where = (Elf_Addr *)(relocbase + rela->r_offset); - rtype = ELF_R_TYPE(rela->r_info); - symidx = ELF_R_SYM(rela->r_info); - addend = rela->r_addend; - break; - default: - panic("%s: invalid ELF relocation (0x%x)\n", __func__, type); - } - - if (local) { - if (rtype == R_IA_64_REL64LSB) - *where = elf_relocaddr(lf, relocbase + addend); - return (0); - } - - switch (rtype) { - case R_IA_64_NONE: - break; - case R_IA_64_DIR64LSB: /* word64 LSB S + A */ - addr = lookup(lf, symidx, 1); - if (addr == 0) - return (-1); - *where = addr + addend; - break; - case R_IA_64_FPTR64LSB: /* word64 LSB @fptr(S + A) */ - if (addend != 0) { - printf("%s: addend ignored for OPD relocation\n", - __func__); - } - addr = lookup_fdesc(lf, symidx, lookup); - if (addr == 0) - return (-1); - *where = addr; - break; - case R_IA_64_REL64LSB: /* word64 LSB BD + A */ - break; - case R_IA_64_IPLTLSB: - addr = lookup_fdesc(lf, symidx, lookup); - if (addr == 0) - return (-1); - where[0] = *((Elf_Addr*)addr) + addend; - where[1] = *((Elf_Addr*)addr + 1); - break; - default: - printf("%s: unknown relocation (0x%x)\n", __func__, - (int)rtype); - return -1; - } - - return (0); -} - -int -elf_reloc(linker_file_t lf, Elf_Addr relocbase, const void *data, int type, - elf_lookup_fn lookup) -{ - - return (elf_reloc_internal(lf, relocbase, data, type, 0, lookup)); -} - -int -elf_reloc_local(linker_file_t lf, Elf_Addr relocbase, const void *data, - int type, elf_lookup_fn lookup) -{ - - return (elf_reloc_internal(lf, relocbase, data, type, 1, lookup)); -} - -int -elf_cpu_load_file(linker_file_t lf) -{ - Elf_Ehdr *hdr; - Elf_Phdr *ph, *phlim; - Elf_Addr reloc, vaddr; - - hdr = (Elf_Ehdr *)(lf->address); - if (!IS_ELF(*hdr)) { - printf("Missing or corrupted ELF header at %p\n", hdr); - return (EFTYPE); - } - - /* - * Iterate over the segments and register the unwind table if - * we come across it. - */ - ph = (Elf_Phdr *)(lf->address + hdr->e_phoff); - phlim = ph + hdr->e_phnum; - reloc = ~0ULL; - while (ph < phlim) { - if (ph->p_type == PT_LOAD && reloc == ~0ULL) - reloc = (Elf_Addr)lf->address - ph->p_vaddr; - - if (ph->p_type == PT_IA_64_UNWIND) { - vaddr = ph->p_vaddr + reloc; - unw_table_add((vm_offset_t)lf->address, vaddr, - vaddr + ph->p_memsz); - } - ++ph; - } - - /* - * Make the I-cache coherent, but don't worry obout the kernel - * itself because the loader needs to do that. - */ - if (lf->id != 1) - ia64_sync_icache((uintptr_t)lf->address, lf->size); - - return (0); -} - -int -elf_cpu_unload_file(linker_file_t lf) -{ - - unw_table_remove((vm_offset_t)lf->address); - return (0); -} |
