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$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);
+}
|
