1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
// file : build/cxx/module.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build/cxx/module>
#include <butl/process>
#include <butl/fdstream>
#include <build/scope>
#include <build/diagnostics>
#include <build/config/utility>
#include <build/install/utility>
#include <build/bin/target>
#include <build/cxx/target>
#include <build/cxx/compile>
#include <build/cxx/link>
#include <build/cxx/install>
using namespace std;
using namespace butl;
namespace build
{
namespace cxx
{
extern "C" void
cxx_init (scope& r,
scope& b,
const location& l,
std::unique_ptr<module>&,
bool first)
{
tracer trace ("cxx::init");
level4 ([&]{trace << "for " << b.path ();});
// Initialize the bin module. Only do this if it hasn't already
// been loaded so that we don't overwrite user's bin.* settings.
//
if (b.find_target_type ("obj") == nullptr)
load_module ("bin", r, b, l);
// Register target types.
//
{
auto& tts (b.target_types);
tts.insert<h> ();
tts.insert<c> ();
tts.insert<cxx> ();
tts.insert<hxx> ();
tts.insert<ixx> ();
tts.insert<txx> ();
}
// Register rules.
//
{
using namespace bin;
auto& rs (b.rules);
rs.insert<obja> (perform_id, update_id, "cxx", compile::instance);
rs.insert<obja> (perform_id, clean_id, "cxx", compile::instance);
rs.insert<objso> (perform_id, update_id, "cxx", compile::instance);
rs.insert<objso> (perform_id, clean_id, "cxx", compile::instance);
rs.insert<exe> (perform_id, update_id, "cxx", link::instance);
rs.insert<exe> (perform_id, clean_id, "cxx", link::instance);
rs.insert<liba> (perform_id, update_id, "cxx", link::instance);
rs.insert<liba> (perform_id, clean_id, "cxx", link::instance);
rs.insert<libso> (perform_id, update_id, "cxx", link::instance);
rs.insert<libso> (perform_id, clean_id, "cxx", link::instance);
// Register for configure so that we detect unresolved imports
// during configuration rather that later, e.g., during update.
//
rs.insert<obja> (configure_id, update_id, "cxx", compile::instance);
rs.insert<objso> (configure_id, update_id, "cxx", compile::instance);
rs.insert<exe> (configure_id, update_id, "cxx", link::instance);
rs.insert<liba> (configure_id, update_id, "cxx", link::instance);
rs.insert<libso> (configure_id, update_id, "cxx", link::instance);
//@@ Should we check if install module was loaded (see bin)?
//
rs.insert<exe> (perform_id, install_id, "cxx", install::instance);
rs.insert<liba> (perform_id, install_id, "cxx", install::instance);
rs.insert<libso> (perform_id, install_id, "cxx", install::instance);
}
// Enter module variables.
//
// @@ Probably should only be done on load; make sure reset() unloads
// modules.
//
// @@ Should probably cache the variable pointers so we don't have
// to keep looking them up.
//
if (first)
{
variable_pool.find ("config.cxx", string_type); //@@ VAR type
variable_pool.find ("config.cxx.poptions", strings_type);
variable_pool.find ("config.cxx.coptions", strings_type);
variable_pool.find ("config.cxx.loptions", strings_type);
variable_pool.find ("config.cxx.libs", strings_type);
variable_pool.find ("cxx.poptions", strings_type);
variable_pool.find ("cxx.coptions", strings_type);
variable_pool.find ("cxx.loptions", strings_type);
variable_pool.find ("cxx.libs", strings_type);
variable_pool.find ("cxx.export.poptions", strings_type);
variable_pool.find ("cxx.export.coptions", strings_type);
variable_pool.find ("cxx.export.loptions", strings_type);
variable_pool.find ("cxx.export.libs", strings_type);
variable_pool.find ("cxx.std", string_type);
variable_pool.find ("h.ext", string_type);
variable_pool.find ("c.ext", string_type);
variable_pool.find ("hxx.ext", string_type);
variable_pool.find ("ixx.ext", string_type);
variable_pool.find ("txx.ext", string_type);
variable_pool.find ("cxx.ext", string_type);
}
// Configure.
//
// config.cxx
//
if (first)
{
auto p (config::required (r, "config.cxx", "g++"));
// If we actually set a new value, test it by trying to execute.
//
if (p.second)
{
const string& cxx (as<string> (p.first));
const char* args[] = {cxx.c_str (), "-dumpversion", nullptr};
if (verb)
print_process (args);
else
text << "test " << cxx;
string ver;
try
{
process pr (args, 0, -1); // Open pipe to stdout.
ifdstream is (pr.in_ofd);
bool r (getline (is, ver));
if (!r)
fail << "unexpected output from " << cxx;
if (!pr.wait ())
throw failed ();
}
catch (const process_error& e)
{
error << "unable to execute " << cxx << ": " << e.what ();
if (e.child ())
exit (1);
throw failed ();
}
if (verb)
text << cxx << " " << ver;
}
}
// config.cxx.{p,c,l}options
// config.cxx.libs
//
// These are optional. We also merge them into the corresponding
// cxx.* variables.
//
// The merging part gets a bit tricky if this module has already
// been loaded in one of the outer scopes. By doing the straight
// append we would just be repeating the same options over and
// over. So what we are going to do is only append to a value if
// it came from this scope. Then the usage for merging becomes:
//
// cxx.coptions = <overridable options> # Note: '='.
// using cxx
// cxx.coptions += <overriding options> # Note: '+='.
//
if (const value& v = config::optional (r, "config.cxx.poptions"))
b.assign ("cxx.poptions") += as<strings> (v);
if (const value& v = config::optional (r, "config.cxx.coptions"))
b.assign ("cxx.coptions") += as<strings> (v);
if (const value& v = config::optional (r, "config.cxx.loptions"))
b.assign ("cxx.loptions") += as<strings> (v);
if (const value& v = config::optional (r, "config.cxx.libs"))
b.assign ("cxx.libs") += as<strings> (v);
// Configure "installability" of our target types.
//
{
using build::install::path;
path<hxx> (b, dir_path ("include")); // Install into install.include.
path<ixx> (b, dir_path ("include"));
path<txx> (b, dir_path ("include"));
path<h> (b, dir_path ("include"));
}
}
}
}
|
