Explain how to use patch.
[pintos-anon] / src / misc / bochs-2.1.1.patch
1 The first two patches are needed for Bochs to properly compile and run
2 under Solaris on Sparc.  If you're not compiling on Solaris, don't
3 apply them.  The first should probably be handled by Autoconf; I'm not
4 sure why it isn't.  The second is needed to make GCC accept X.h's
5 frequent use of "extern foo(...)", because use of an implicit int
6 return type is forbidden in C++.
7
8 The third patch makes the gdb stubs work on Solaris/Sparc, by doing
9 proper byteswapping.  It should be harmless elsewhere.
10
11 The fourth patch enables the serial device under Solaris and disables
12 tty setup at the same time.  Tty setup is a pain when you want to
13 connect a serial port to stdout and it doesn't work under Solaris
14 anyway.  This patch is useful everywhere with `pintos', but may not be
15 wanted elsewhere.
16
17 To apply all the patches, cd into the Bochs directory, then type
18         patch -p1 < ~/pintos/src/misc/bochs-2.1.1.patch
19 You will have to supply the proper path to the patch, of course.  You
20 can provide the --dry-run option to patch if you want to test whether
21 the patch would apply cleanly before actually patching.
22
23 Here's a ./configure invocation for Bochs that works optimally with
24 the `pintos' utility:
25         ./configure --with-x --with-x11 --with-term --with-nogui
26 If you want the gdb stub, add --enable-gdb-stub
27 If you want the internal debugger, add --enable-debugger
28
29 diff -urp orig/bochs-2.1.1/Makefile.in bochs-2.1.1/Makefile.in
30 --- orig/bochs-2.1.1/Makefile.in        2004-02-11 14:28:02.000000000 -0800
31 +++ bochs-2.1.1/Makefile.in     2004-09-13 15:05:26.281550000 -0700
32 @@ -92,7 +92,7 @@ CXX = @CXX@
33  CFLAGS = @CFLAGS@ @GUI_CFLAGS@ $(MCH_CFLAGS) $(FLA_FLAGS) @DEFINE_PLUGIN_PATH@ -DBX_SHARE_PATH='"$(sharedir)"'
34  CXXFLAGS = @CXXFLAGS@ @GUI_CXXFLAGS@ $(MCH_CFLAGS) $(FLA_FLAGS) @DEFINE_PLUGIN_PATH@ -DBX_SHARE_PATH='"$(sharedir)"'
35  
36 -LDFLAGS = @LDFLAGS@
37 +LDFLAGS = @LDFLAGS@ -lsocket
38  LIBS = @LIBS@
39  # To compile with readline:
40  #   linux needs just -lreadline
41
42 diff -urp orig/bochs-2.1.1/gui/Makefile.in bochs-2.1.1/gui/Makefile.in
43 --- orig/bochs-2.1.1/gui/Makefile.in    2003-11-28 07:07:28.000000000 -0800
44 +++ bochs-2.1.1/gui/Makefile.in 2004-09-13 15:05:09.402039000 -0700
45 @@ -44,7 +44,7 @@ SHELL = /bin/sh
46  @SET_MAKE@
47  
48  CXX = @CXX@
49 -CXXFLAGS = $(BX_INCDIRS) @CXXFLAGS@  @GUI_CXXFLAGS@
50 +CXXFLAGS = $(BX_INCDIRS) @CXXFLAGS@  @GUI_CXXFLAGS@ -fms-extensions
51  LOCAL_CXXFLAGS =
52  LDFLAGS = @LDFLAGS@
53  LIBS = @LIBS@
54
55
56 diff -urp orig/bochs-2.1.1/gdbstub.cc bochs-2.1.1/gdbstub.cc
57 --- orig/bochs-2.1.1/gdbstub.cc 2004-02-11 14:28:41.000000000 -0800
58 +++ bochs-2.1.1/gdbstub.cc      2004-09-13 16:41:59.652988000 -0700
59 @@ -474,11 +475,13 @@ static void debug_loop(void)
60            case 'P':
61                {
62                   int reg;
63 -                 int value;
64 +                 Bit8u vbits[4];
65 +                 Bit32u value;
66                   char* ebuf;
67                   
68                   reg = strtoul(&buffer[1], &ebuf, 16);
69 -                 value = ntohl(strtoul(ebuf + 1, &ebuf, 16));
70 +                 hex2mem(ebuf + 1, vbits, sizeof value);
71 +                 ReadHostDWordFromLittleEndian(vbits, value);
72                   
73                   BX_INFO (("reg %d set to %x", reg, value));
74                   
75 @@ -527,35 +530,36 @@ static void debug_loop(void)
76                }
77              
78            case 'g':
79 -            registers[0] = EAX;
80 -            registers[1] = ECX;
81 -            registers[2] = EDX;
82 -            registers[3] = EBX;
83 -            registers[4] = ESP;
84 -            registers[5] = EBP;
85 -            registers[6] = ESI;
86 -            registers[7] = EDI;
87 +            WriteHostDWordToLittleEndian(registers + 0, EAX);
88 +            WriteHostDWordToLittleEndian(registers + 1, ECX);
89 +            WriteHostDWordToLittleEndian(registers + 2, EDX);
90 +            WriteHostDWordToLittleEndian(registers + 3, EBX);
91 +            WriteHostDWordToLittleEndian(registers + 4, ESP);
92 +            WriteHostDWordToLittleEndian(registers + 5, EBP);
93 +            WriteHostDWordToLittleEndian(registers + 6, ESI);
94 +            WriteHostDWordToLittleEndian(registers + 7, EDI);
95              if (last_stop_reason == GDBSTUB_EXECUTION_BREAKPOINT)
96                {
97 -                 registers[8] = EIP + 1;
98 +                WriteHostDWordToLittleEndian(registers + 8, EIP + 1);
99                }
100              else
101                {
102 -                 registers[8] = EIP;
103 +                WriteHostDWordToLittleEndian(registers + 8, EIP);
104                }
105 -            registers[9] = BX_CPU_THIS_PTR read_eflags();
106 -            registers[10] = 
107 -              BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.value;
108 -            registers[11] = 
109 -              BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.value;
110 -            registers[12] = 
111 -              BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.value;
112 -            registers[13] = 
113 -              BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.value;
114 -            registers[14] = 
115 -              BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.value;
116 -            registers[15] = 
117 -              BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.value;
118 +            WriteHostDWordToLittleEndian(registers + 9,
119 +                                         BX_CPU_THIS_PTR read_eflags());
120 +            WriteHostDWordToLittleEndian(registers + 10,
121 +              BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.value);
122 +            WriteHostDWordToLittleEndian(registers + 11,
123 +              BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.value);
124 +            WriteHostDWordToLittleEndian(registers + 12,
125 +              BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.value);
126 +            WriteHostDWordToLittleEndian(registers + 13,
127 +              BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.value);
128 +            WriteHostDWordToLittleEndian(registers + 14,
129 +              BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.value);
130 +            WriteHostDWordToLittleEndian(registers + 15,
131 +              BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.value);
132              mem2hex((char *)registers, obuf, NUMREGSBYTES);
133              put_reply(obuf);
134              break;
135 --- tmp/bochs-2.1.1/iodev/serial.cc     2004-02-11 14:28:54.000001000 -0800
136 +++ bochs-2.1.1/iodev/serial.cc 2004-09-14 23:02:04.000001000 -0700
137 @@ -53,7 +53,7 @@
138  #endif
139  #endif
140  
141 -#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__linux__) || defined(__GNU__) || defined(__APPLE__)
142 +#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__linux__) || defined(__GNU__) || defined(__APPLE__) || defined(__sun__)
143  #define SERIAL_ENABLE
144  #endif
145  
146 @@ -122,6 +122,7 @@
147      if (tty_id < 0)
148        BX_PANIC(("open of %s (%s) failed\n",
149                  "com1", bx_options.com[0].Odev->getptr ()));
150 +#if 0
151      BX_DEBUG(("tty_id: %d",tty_id));
152      tcgetattr(tty_id, &term_orig);
153      bcopy((caddr_t) &term_orig, (caddr_t) &term_new, sizeof(struct termios));
154 @@ -145,6 +146,7 @@
155      term_new.c_cc[VTIME] = 0;
156      //term_new.c_iflag |= IXOFF;
157      tcsetattr(tty_id, TCSAFLUSH, &term_new);
158 +#endif
159    }
160  #endif   /* def SERIAL_ENABLE */
161    // nothing for now