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comparison dmd/Macro.d @ 99:903b95002d4e

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Id and Macro are quite experimental currently
author Trass3r
date Tue, 31 Aug 2010 04:04:33 +0200
parents 10317f0c89a5
children e28b18c23469
comparison
equal deleted inserted replaced
98:5c859d5fbe27 99:903b95002d4e
1 module dmd.Macro; 1 module dmd.Macro;
2 2
3 struct Macro /// ??? 3 struct Macro /// ???
4 { 4 {
5 } 5 }
6
7 /**
8 It is very important to use version control macros correctly - the
9 idea is that host and target are independent. If these are done
10 correctly, cross compilers can be built.
11 The host compiler and host operating system are also different,
12 and are predefined by the host compiler. The ones used in
13 dmd are:
14
15 Macros defined by the compiler, not the code:
16
17 Compiler:
18 __DMC__ Digital Mars compiler
19 _MSC_VER Microsoft compiler
20 __GNUC__ Gnu compiler
21
22 Host operating system:
23 _WIN32 Microsoft NT, Windows 95, Windows 98, Win32s,
24 Windows 2000, Win XP, Vista
25 _WIN64 Windows for AMD64
26 linux Linux
27 __APPLE__ Mac OSX
28 __FreeBSD__ FreeBSD
29 __sun&&__SVR4 Solaris, OpenSolaris (yes, both macros are necessary)
30
31 For the target systems, there are the target operating system and
32 the target object file format:
33
34 Target operating system:
35 TARGET_WINDOS Covers 32 bit windows and 64 bit windows
36 TARGET_LINUX Covers 32 and 64 bit linux
37 TARGET_OSX Covers 32 and 64 bit Mac OSX
38 TARGET_FREEBSD Covers 32 and 64 bit FreeBSD
39 TARGET_SOLARIS Covers 32 and 64 bit Solaris
40 TARGET_NET Covers .Net
41
42 It is expected that the compiler for each platform will be able
43 to generate 32 and 64 bit code from the same compiler binary.
44
45 Target object module format:
46 OMFOBJ Intel Object Module Format, used on Windows
47 ELFOBJ Elf Object Module Format, used on linux, FreeBSD and Solaris
48 MACHOBJ Mach-O Object Module Format, used on Mac OSX
49
50 There are currently no macros for byte endianness order.
51 */
52 //version definitions from mars.h
53
54 version(IN_GCC) // Changes for the GDC compiler by David Friedman
55 {
56 static assert(false, "GDC not supported");
57 }
58
59 // default to DMDV2
60 version(DMDV1) {} else
61 version = DMDV2; // Version 2.0 features
62 version = BREAKABI; // 0 if not ready to break the ABI just yet
63 version(DMDV2)
64 {
65 version = STRUCTTHISREF; // if 'this' for struct is a reference, not a pointer
66 version = SNAN_DEFAULT_INIT;// if floats are default initialized to signalling NaN
67 version = SARRAYVALUE; // static arrays are value types
68 }
69
70 // Set if C++ mangling is done by the front end
71 version(DMDV2)
72 {
73 version(POSIX) // TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS
74 version = CPP_MANGLE;
75 }
76
77 /* Other targets are TARGET_LINUX, TARGET_OSX, TARGET_FREEBSD and
78 * TARGET_SOLARIS, which are
79 * set on the command line via the compiler makefile.
80 */
81
82 version(_WIN32)
83 {
84 version = TARGET_WINDOS; // Windows dmd generates Windows targets
85 version = OMFOBJ;
86 }
87
88 version(TARGET_LINUX)
89 version = ELFOBJ;
90 version(TARGET_FREEBSD)
91 version = ELFOBJ;
92 version(TARGET_SOLARIS)
93 version = ELFOBJ;
94
95
96 version(TARGET_OSX)
97 version = MACHOBJ;
98
99 /* TODO:
100 //Modify OutBuffer::writewchar to write the correct size of wchar
101 #if _WIN32
102 #define writewchar writeword
103 #else
104 //This needs a configuration test...
105 #define writewchar write4
106 #endif
107
108 #define INTERFACE_OFFSET 0 // if 1, put classinfo as first entry
109 //in interface vtbl[]'s
110 #define INTERFACE_VIRTUAL 0 // 1 means if an interface appears
111 //in the inheritance graph multiple
112 //times, only one is used
113 */