$NetBSD: patch-ak,v 1.1.1.1 2011/07/27 10:23:49 cherry Exp $

--- src/netbsd/osload-netbsd.c.orig	2009-12-16 12:47:32.000000000 +0000
+++ src/netbsd/osload-netbsd.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 1995-2007, Hewlett-Packard Development Company, L.P.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/exec_elf.h>
+
+#include <sys/exec.h>
+
+#include "std.h"
+#include "types.h"
+#include "osload.h"
+#include "state.h"
+#include "fields.h"
+#include "libcore.h"
+#include "sim.h"
+#include "simmem.h"
+
+extern char **environ;
+
+int
+os_elf32_abi(char *ident, Elf32_Ehdr *ehdr, int set)
+{
+	/* No ILP32. */
+	return (0);
+}
+
+int
+os_elf64_abi(char *ident, Elf64_Ehdr *ehdr, int set)
+{
+	int region;
+	BOOL abi;
+
+	if (ident[EI_OSABI] != ELFOSABI_SYSV)
+		return (0);
+
+	region = ehdr->e_entry >> 61;
+	abi = (ehdr->e_type == ET_DYN || (region > 0 && region < 5))
+	    ? YES : NO;
+	if (set)
+		unixABI = abi;
+	else if (unixABI != abi)
+		return (0);
+
+	return (1);
+}
+
+ADDR
+os_rtld32_text(Elf32_Phdr *phdr)
+{
+	/* No ILP32. */
+	return (0);
+}
+
+ADDR
+os_rtld32_data(Elf32_Phdr *phdr)
+{
+	/* No ILP32. */
+	return (0);
+}
+
+ADDR
+os_rtld64_text(Elf64_Phdr *phdr)
+{
+	return (0x2000000000000000ULL);
+}
+
+ADDR
+os_rtld64_data(Elf64_Phdr *phdr)
+{
+	return (os_rtld64_text(phdr) + phdr->p_vaddr);
+}
+
+/*
+ * Initial stack layout:
+ *	USRSTACK		+------------------------+
+ *				|    struct ps_strings   |
+ *	PS_STRINGS		+------------------------+
+ *				| signal trampoline code |
+ *				+------------------------+
+ *				|     SPARE_USRSPACE     |
+ *				+------------------------+
+ *				|   arg & env strings    |
+ *				+------------------------+
+ *				|      AUX entries       |
+ *				+------------------------+
+ *				|   environ[envc + 1]    |
+ *				+------------------------+
+ *				|     argv[argc + 1]     |
+ *				+------------------------+
+ *				|          argc          |
+ *	SP			+------------------------+
+ *
+ * AUX entries required by rtld:
+ *	AT_BASE
+ *	AT_ENTRY
+ *	AT_PHDR
+ *	AT_PHENT
+ *	AT_PHNUM
+ */
+struct ia64_ps_strings {
+	uint64_t	ps_argvstr;	/* VA of first argument string. */
+	int		ps_nargvstr;	/* Number of argument strings. */
+	int		ps_pad0;
+	uint64_t	ps_envstr;	/* VA of first environment string. */
+	int		ps_nenvstr;	/* Number of environment strings. */
+	int		ps_pad1;
+};
+
+#define	AUX(sp, tag, ptr)			\
+	do {					\
+		(void)memWrt8(sp, tag);		\
+		(void)memWrt8(sp + 8, ptr);	\
+		sp += 16;			\
+	} while (0)
+
+int
+os_setup_process(const char *file_name, int argc, char *argv[],
+    struct os_proc *proc)
+{
+	struct ia64_ps_strings ps_strings;
+	ADDR sp, strings, strp;
+	size_t argsz, envsz, strsz;
+	int envc, i;
+
+	/* Initialize FP state (architected default value). */
+	arSet(0, FPSR_ID, 0x0009804c0270033fULL);
+
+	sp = 0xA000000000000000ULL;
+	sp -= 1048576;			/* 1MB gateway page for EPC support. */
+	setMaxSP(sp);			/* =USRSTACK */
+
+	sp -= sizeof(ps_strings);
+	strings = sp;			/* =PS_STRINGS */
+
+	/* XXX no signal trampoline code. */
+
+//	XXX: sp -= SPARE_USRSPACE;
+
+	argsz = 0;
+	for (i = 0; i < argc; i++)
+		argsz += strlen(argv[i]) + 1;
+	envsz = 0;
+	for (envc = 0; environ[envc]; envc++)
+		envsz += strlen(environ[envc]) + 1;
+	sp -= (argsz + envsz + 7) & ~7;
+	strp = sp;
+
+	if (proc->has_rtld)
+		sp -= 6 * 16;			/* AUX entries */
+
+	sp -= (envc + 1) * 8;			/* envp[] */
+	ps_strings.ps_envstr = sp;
+	ps_strings.ps_nenvstr = envc;
+	sp -= (argc + 1) * 8;			/* argv[] */
+	ps_strings.ps_argvstr = sp;
+	ps_strings.ps_nargvstr = argc;
+
+	sp -= 8;				/* argc */
+
+	grSet(0, 32, sp);
+	grSet(0, 33, strings);
+	grSet(0, 34, 0);
+
+	sp &= ~15;
+	grSet(0, SP_ID, sp - 16);
+
+	/* Map all pages. */
+	sp = page_base(sp);
+	do {
+		pmemLookup_p(sp);
+		sp += page_size;
+	} while (sp < getMaxSP());
+
+	/* Copy out arguments. */
+	sp = ps_strings.ps_argvstr;
+	memWrt8(sp - 8, argc);
+	for (i = 0; i < argc; i++) {
+		strsz = strlen(argv[i]) + 1;
+		memBBWrt(strp, (BYTE *)argv[i], strsz);
+		memWrt8(sp, strp);
+		strp += strsz;
+		sp += 8;
+	}
+	memWrt8(sp, 0);
+	sp += 8;
+
+	/* Copy out environment strings. */
+	for (i = 0; i < envc; i++) {
+		strsz = strlen(environ[i]) + 1;
+		memBBWrt(strp, (BYTE *)environ[i], strsz);
+		memWrt8(sp, strp);
+		strp += strsz;
+		sp += 8;
+	}
+	memWrt8(sp, 0);
+	sp += 8;
+
+	if (proc->has_rtld) {
+		AUX(sp, AT_BASE, proc->rtld_base);
+		AUX(sp, AT_ENTRY, proc->proc_entry);
+		AUX(sp, AT_PHDR, proc->phdr_addr);
+		AUX(sp, AT_PHENT, sizeof(Elf64_Phdr));
+		AUX(sp, AT_PHNUM, proc->phdr_count);
+		AUX(sp, AT_NULL, NULL);
+	}
+
+	/* Copy out ps_strings. */
+	memBBWrt(strings, (BYTE *)&ps_strings, sizeof(ps_strings));
+
+	/* Set backing store. */
+	arSet(0, BSP_ID,   0x9FFFFFFF80000000ULL);
+	arSet(0, BSPST_ID, 0x9FFFFFFF80000000ULL);
+
+	return (0);
+}