/[gxemul]/upstream/0.4.3/src/useremul.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 18 by dpavlin, Mon Oct 8 16:19:11 2007 UTC revision 32 by dpavlin, Mon Oct 8 16:20:58 2007 UTC
# Line 1  Line 1 
1  /*  /*
2   *  Copyright (C) 2004-2005  Anders Gavare.  All rights reserved.   *  Copyright (C) 2004-2006  Anders Gavare.  All rights reserved.
3   *   *
4   *  Redistribution and use in source and binary forms, with or without   *  Redistribution and use in source and binary forms, with or without
5   *  modification, are permitted provided that the following conditions are met:   *  modification, are permitted provided that the following conditions are met:
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *   *
27   *   *
28   *  $Id: useremul.c,v 1.65 2005/10/26 14:37:02 debug Exp $   *  $Id: useremul.c,v 1.72 2006/09/30 05:57:07 debug Exp $
29   *   *
30   *  Userland (syscall) emulation.   *  Userland (syscall) emulation.
31   *   *
# Line 40  Line 40 
40   *      Dynamic ELFs?   *      Dynamic ELFs?
41   *   *
42   *      Try to prefix "/emul/mips/" or similar to all filenames,   *      Try to prefix "/emul/mips/" or similar to all filenames,
43   *              and only if that fails, try the given filename   *              and only if that fails, try the given filename.
44     *              Read this setting from an environment variable, and only
45     *              if there is none, fall back to hardcoded string.
46   *   *
47   *      Automagic errno translation?   *      Automagic errno translation!
48   *   *
49   *      Memory allocation? mmap etc.   *      Memory allocation? mmap, munmap, mprotect, etc.
50     *              mprotect = unmap in dyntrans...
51   *   *
52   *      File descriptor (0,1,2) assumptions?   *      File descriptor (0,1,2) assumptions? Find and fix these?
53   *   *
54   *   *
55   *  This module needs more cleanup.   *  This module needs more cleanup.
56   *  -------------------------------   *  -------------------------------
57   *   *
58   *   *
59   *  NOTE:  This module (useremul.c) is just a quick hack to see if   *  NOTE:  This module (useremul.c) is just a quick hack so far, to see if
60   *         userland emulation works at all.   *         userland emulation works at all. It only works for Hello World-
61     *         style programs compiled for FreeBSD/alpha or NetBSD/mips.
62   */   */
63    
64  #include <errno.h>  #include <errno.h>
# Line 248  void useremul__netbsd_setup(struct cpu * Line 252  void useremul__netbsd_setup(struct cpu *
252    
253                  break;                  break;
254    
255            case ARCH_SH:
256                    debug("useremul__netbsd_setup(): SH: TODO\n");
257                    break;
258    
259          case ARCH_X86:          case ARCH_X86:
260                  debug("useremul__netbsd_setup(): X86: TODO\n");                  debug("useremul__netbsd_setup(): X86: TODO\n");
261    
# Line 364  static unsigned char *get_userland_buf(s Line 372  static unsigned char *get_userland_buf(s
372          uint64_t baseaddr, uint64_t len)          uint64_t baseaddr, uint64_t len)
373  {  {
374          unsigned char *charbuf;          unsigned char *charbuf;
375          ssize_t i;          size_t i;
376    
377          charbuf = malloc(len);          charbuf = malloc(len);
378          if (charbuf == NULL) {          if (charbuf == NULL) {
# Line 699  static void useremul__freebsd(struct cpu Line 707  static void useremul__freebsd(struct cpu
707          case 58:res = useremul_readlink(cpu, &err, arg0, arg1, arg2);          case 58:res = useremul_readlink(cpu, &err, arg0, arg1, arg2);
708                  break;                  break;
709    
710            case 73:/* munmap. TODO */
711                    res = 1;
712                    break;
713    
714          case 117:res = useremul_getrusage(cpu, &err, arg0, arg1);          case 117:res = useremul_getrusage(cpu, &err, arg0, arg1);
715                  break;                  break;
716    
# Line 1212  static void useremul__netbsd(struct cpu Line 1224  static void useremul__netbsd(struct cpu
1224                  }                  }
1225                  if (result_high_set)                  if (result_high_set)
1226                          cpu->cd.arm.r[1] = result_high;                          cpu->cd.arm.r[1] = result_high;
1227                    cpu->cd.arm.flags = cpu->cd.arm.cpsr >> 28;
1228                  break;                  break;
1229          case ARCH_MIPS:          case ARCH_MIPS:
1230                  /*                  /*
# Line 1711  static void add_useremul(char *name, int Line 1724  static void add_useremul(char *name, int
1724  void useremul_list_emuls(void)  void useremul_list_emuls(void)
1725  {  {
1726          struct syscall_emul *sep;          struct syscall_emul *sep;
1727          int iadd = 8;          int iadd = DEBUG_INDENTATION * 2;
1728    
1729          sep = first_syscall_emul;          sep = first_syscall_emul;
1730    
# Line 1749  void useremul_init(void) Line 1762  void useremul_init(void)
1762          add_useremul("Ultrix", ARCH_MIPS, "R3000",          add_useremul("Ultrix", ARCH_MIPS, "R3000",
1763              useremul__ultrix, useremul__ultrix_setup);              useremul__ultrix, useremul__ultrix_setup);
1764    
1765            add_useremul("NetBSD/sh", ARCH_SH, "SH4",
1766                useremul__netbsd, useremul__netbsd_setup);
1767    
1768          add_useremul("NetBSD/powerpc", ARCH_PPC, "PPC750",          add_useremul("NetBSD/powerpc", ARCH_PPC, "PPC750",
1769              useremul__netbsd, useremul__netbsd_setup);              useremul__netbsd, useremul__netbsd_setup);
1770    
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