First pass at 64-bit elf support

2008-12-31 07:38:04 +00:00 · 2008-12-31 07:38:04 +00:00 · 5d311ae349
commit 5d311ae349
parent 81e94e0a4c
1 changed files with 117 additions and 0 deletions
--- a/sys/mips/mips/elf64_machdep.c
+++ b/sys/mips/mips/elf64_machdep.c
@ -0,0 +1,117 @@
+/*-
+ * 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.
+ *
+ *	from: src/sys/i386/i386/elf_machdep.c,v 1.20 2004/08/11 02:35:05 marcel
+ */
+
+#define __ELF_WORD_SIZE 64
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+#include <sys/exec.h>
+#include <sys/imgact.h>
+#include <sys/linker.h>
+#include <sys/sysent.h>
+#include <sys/imgact_elf.h>
+#include <sys/syscall.h>
+#include <sys/signalvar.h>
+#include <sys/vnode.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#include <vm/vm_param.h>
+
+#include <machine/elf.h>
+#include <machine/md_var.h>
+
+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	= sigcode,
+	.sv_szsigcode	= &szsigcode,
+	.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_ALL,
+	.sv_copyout_strings = exec_copyout_strings,
+	.sv_setregs	= exec_setregs,
+	.sv_fixlimit	= NULL,
+	.sv_maxssiz	= NULL,
+	.sv_flags	= SV_ABI_FREEBSD | SV_LP64
+};
+
+static Elf64_Brandinfo freebsd_brand_gnutools_info64 = {
+	.brand		= ELFOSABI_NONE,
+	.machine	= EM_MIPS,
+	.compat_3_brand	= "Unix System V ABI",
+	.emul_path	= NULL,
+	.interp_path	= "/libexec/ld-elf.so.1",
+	.sysvec		= &elf64_freebsd_sysvec,
+	.interp_path	= "/libexec/ld-elf.so.1",
+	.flags		= BI_CAN_EXEC_DYN
+};
+
+SYSINIT(gnu_mips_elf64, SI_SUB_EXEC, SI_ORDER_ANY,
+    (sysinit_cfunc_t) elf64_insert_brand_entry,
+    &freebsd_brand_gnutools_info64);
+
+static Elf64_Brandinfo freebsd_brand_info64 = {
+	.brand		= ELFOSABI_FREEBSD,
+	.machine	= EM_MIPS,
+	.compat_3_brand	= "FreeBSD",
+	.emul_path	= NULL,
+	.interp_path	= "/libexec/ld-elf.so.1",
+	.sysvec		= &elf64_freebsd_sysvec,
+	.interp_newpath	= NULL,
+	.flags		= 0
+};
+
+SYSINIT(elf64, SI_SUB_EXEC, SI_ORDER_ANY,
+    (sysinit_cfunc_t) elf64_insert_brand_entry,
+    &freebsd_brand_info64);
+
+void
+elf64_dump_thread(struct thread *td __unused, void *dst __unused,
+    size_t *off __unused)
+{
+}