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1 | /* Compiler handling for plugin |
2 | Copyright (C) 2014-2021 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GCC; see the file COPYING3. If not see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include <cc1plugin-config.h> | |
21 | #include <string> | |
22 | #include <sstream> | |
23 | #include "libiberty.h" | |
24 | #include "compiler.hh" | |
25 | #include "xregex.h" | |
26 | #include "findcomp.hh" | |
27 | #include "intl.h" | |
28 | ||
29 | // Construct an appropriate regexp to match the compiler name. | |
30 | static std::string | |
31 | make_regexp (const char *triplet_regexp, const char *compiler) | |
32 | { | |
33 | std::stringstream buf; | |
34 | ||
35 | buf << "^" << triplet_regexp << "-"; | |
36 | ||
37 | // Quote the compiler name in case it has something funny in it. | |
38 | for (const char *p = compiler; *p; ++p) | |
39 | { | |
40 | switch (*p) | |
41 | { | |
42 | case '.': | |
43 | case '^': | |
44 | case '$': | |
45 | case '*': | |
46 | case '+': | |
47 | case '?': | |
48 | case '(': | |
49 | case ')': | |
50 | case '[': | |
51 | case '{': | |
52 | case '\\': | |
53 | case '|': | |
54 | buf << '\\'; | |
55 | break; | |
56 | } | |
57 | buf << *p; | |
58 | } | |
59 | buf << "$"; | |
60 | ||
61 | return buf.str (); | |
62 | } | |
63 | ||
64 | char * | |
65 | cc1_plugin::compiler::find (const char *, std::string &) const | |
66 | { | |
67 | return xstrdup (_("Compiler has not been specified")); | |
68 | } | |
69 | ||
70 | char * | |
71 | cc1_plugin::compiler_triplet_regexp::find (const char *base, | |
72 | std::string &compiler) const | |
73 | { | |
74 | std::string rx = make_regexp (triplet_regexp_.c_str (), base); | |
75 | if (verbose) | |
76 | fprintf (stderr, _("searching for compiler matching regex %s\n"), | |
77 | rx.c_str()); | |
78 | regex_t triplet; | |
79 | int code = regcomp (&triplet, rx.c_str (), REG_EXTENDED | REG_NOSUB); | |
80 | if (code != 0) | |
81 | { | |
82 | size_t len = regerror (code, &triplet, NULL, 0); | |
83 | char err[len]; | |
84 | ||
85 | regerror (code, &triplet, err, len); | |
86 | ||
87 | return concat ("Could not compile regexp \"", | |
88 | rx.c_str (), | |
89 | "\": ", | |
90 | err, | |
91 | (char *) NULL); | |
92 | } | |
93 | ||
94 | if (!find_compiler (triplet, &compiler)) | |
95 | { | |
96 | regfree (&triplet); | |
97 | return concat ("Could not find a compiler matching \"", | |
98 | rx.c_str (), | |
99 | "\"", | |
100 | (char *) NULL); | |
101 | } | |
102 | regfree (&triplet); | |
103 | if (verbose) | |
104 | fprintf (stderr, _("found compiler %s\n"), compiler.c_str()); | |
105 | return NULL; | |
106 | } | |
107 | ||
108 | char * | |
109 | cc1_plugin::compiler_driver_filename::find (const char *, | |
110 | std::string &compiler) const | |
111 | { | |
112 | // Simulate fnotice by fprintf. | |
113 | if (verbose) | |
114 | fprintf (stderr, _("using explicit compiler filename %s\n"), | |
115 | driver_filename_.c_str()); | |
116 | compiler = driver_filename_; | |
117 | return NULL; | |
118 | } |