dmd.dmsc source code

1 /**
2  * Configures and initializes the backend.
3  *
4  * Copyright:   Copyright (C) 1999-2023 by The D Language Foundation, All Rights Reserved
5  * Authors:     $(LINK2 https://www.digitalmars.com, Walter Bright)
6  * License:     $(LINK2 https://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
7  * Source:      $(LINK2 https://github.com/dlang/dmd/blob/master/src/dmd/dmsc.d, _dmsc.d)
8  * Documentation:  https://dlang.org/phobos/dmd_dmsc.html
9  * Coverage:    https://codecov.io/gh/dlang/dmd/src/master/src/dmd/dmsc.d
10  */
11 
12 module dmd.dmsc;
13 
14 import core.stdc.stdio;
15 import core.stdc.string;
16 import core.stdc.stddef;
17 
18 extern (C++):
19 
20 import dmd.globals;
21 import dmd.dclass;
22 import dmd.dmdparams;
23 import dmd.dmodule;
24 import dmd.mtype;
25 import dmd.target;
26 
27 import dmd.root.filename;
28 
29 import dmd.backend.cc;
30 import dmd.backend.cdef;
31 import dmd.backend.global;
32 import dmd.backend.ty;
33 import dmd.backend.type;
34 import dmd.backend.backconfig;
35 
36 /**************************************
37  * Initialize config variables.
38  */
39 
40 void backend_init()
41 {
42     //printf("out_config_init()\n");
43     Param *params = &global.params;
44     exefmt_t exfmt;
45     switch (target.os)
46     {
47         case Target.OS.Windows: exfmt = target.isX86_64 ? EX_WIN64 : EX_WIN32;       break;
48         case Target.OS.linux:   exfmt = target.isX86_64 ? EX_LINUX64 : EX_LINUX;     break;
49         case Target.OS.OSX:     exfmt = target.isX86_64 ? EX_OSX64 : EX_OSX;         break;
50         case Target.OS.FreeBSD: exfmt = target.isX86_64 ? EX_FREEBSD64 : EX_FREEBSD; break;
51         case Target.OS.OpenBSD: exfmt = target.isX86_64 ? EX_OPENBSD64 : EX_OPENBSD; break;
52         case Target.OS.Solaris: exfmt = target.isX86_64 ? EX_SOLARIS64 : EX_SOLARIS; break;
53         case Target.OS.DragonFlyBSD: exfmt = EX_DRAGONFLYBSD64; break;
54         default: assert(0);
55     }
56 
57     bool exe;
58     if (driverParams.dll || driverParams.pic != PIC.fixed)
59     {
60     }
61     else if (params.run)
62         exe = true;         // EXE file only optimizations
63     else if (driverParams.link && !params.deffile)
64         exe = true;         // EXE file only optimizations
65     else if (params.exefile.length &&
66              params.exefile.length >= 4 &&
67              FileName.equals(FileName.ext(params.exefile), "exe"))
68         exe = true;         // if writing out EXE file
69 
70     out_config_init(
71         (target.isX86_64 ? 64 : 32) | (target.objectFormat() == Target.ObjectFormat.coff ? 1 : 0),
72         exe,
73         false, //params.trace,
74         driverParams.nofloat,
75         driverParams.vasm,
76         params.v.verbose,
77         driverParams.optimize,
78         driverParams.symdebug,
79         driverParams.alwaysframe,
80         driverParams.stackstomp,
81         driverParams.ibt,
82         target.cpu >= CPU.avx2 ? 2 : target.cpu >= CPU.avx ? 1 : 0,
83         driverParams.pic,
84         params.useModuleInfo && Module.moduleinfo,
85         params.useTypeInfo && Type.dtypeinfo,
86         params.useExceptions && ClassDeclaration.throwable,
87         driverParams.dwarf,
88         global.versionString(),
89         exfmt,
90         params.addMain
91     );
92 
93     out_config_debug(
94         driverParams.debugb,
95         driverParams.debugc,
96         driverParams.debugf,
97         driverParams.debugr,
98         false,
99         driverParams.debugx,
100         driverParams.debugy
101     );
102 }
103 
104 /**************************************
105  */
106 
107 void backend_term() @safe
108 {
109 }