|
0
|
1 /* Subroutines for the gcc driver.
|
|
|
2 Copyright (C) 2009 Free Software Foundation, Inc.
|
|
|
3 Contributed by Arthur Loiret <aloiret@debian.org>
|
|
|
4
|
|
|
5 This file is part of GCC.
|
|
|
6
|
|
|
7 GCC is free software; you can redistribute it and/or modify
|
|
|
8 it under the terms of the GNU General Public License as published by
|
|
|
9 the Free Software Foundation; either version 3, or (at your option)
|
|
|
10 any later version.
|
|
|
11
|
|
|
12 GCC is distributed in the hope that it will be useful,
|
|
|
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
15 GNU General Public License for more details.
|
|
|
16
|
|
|
17 You should have received a copy of the GNU General Public License
|
|
|
18 along with GCC; see the file COPYING3. If not see
|
|
|
19 <http://www.gnu.org/licenses/>. */
|
|
|
20
|
|
|
21 #include "config.h"
|
|
|
22 #include "system.h"
|
|
|
23 #include "coretypes.h"
|
|
|
24 #include "tm.h"
|
|
|
25
|
|
|
26 /* This will be called by the spec parser in gcc.c when it sees
|
|
|
27 a %:local_cpu_detect(args) construct. Currently it will be called
|
|
|
28 with either "cpu" or "tune" as argument depending on if -mcpu=native
|
|
|
29 or -mtune=native is to be substituted.
|
|
|
30
|
|
|
31 It returns a string containing new command line parameters to be
|
|
|
32 put at the place of the above two options, depending on what CPU
|
|
|
33 this is executed. E.g. "-mcpu=ev6" on an Alpha 21264 for
|
|
|
34 -mcpu=native. If the routine can't detect a known processor,
|
|
|
35 the -mcpu or -mtune option is discarded.
|
|
|
36
|
|
|
37 ARGC and ARGV are set depending on the actual arguments given
|
|
|
38 in the spec. */
|
|
|
39 const char *
|
|
|
40 host_detect_local_cpu (int argc, const char **argv)
|
|
|
41 {
|
|
|
42 const char *cpu = NULL;
|
|
|
43 char buf[128];
|
|
|
44 FILE *f;
|
|
|
45
|
|
|
46 static const struct cpu_names {
|
|
|
47 const char *const name;
|
|
|
48 const char *const cpu;
|
|
|
49 } cpu_names[] = {
|
|
|
50 { "EV79", "ev67" },
|
|
|
51 { "EV7", "ev67" },
|
|
|
52 { "EV69", "ev67" },
|
|
|
53 { "EV68CX", "ev67" },
|
|
|
54 { "EV68CB", "ev67" },
|
|
|
55 { "EV68AL", "ev67" },
|
|
|
56 { "EV67", "ev67" },
|
|
|
57 { "EV6", "ev6" },
|
|
|
58 { "PCA57", "pca56" },
|
|
|
59 { "PCA56", "pca56" },
|
|
|
60 { "EV56", "ev56" },
|
|
|
61 { "EV5", "ev5" },
|
|
|
62 { "LCA45", "ev45" },
|
|
|
63 { "EV45", "ev45" },
|
|
|
64 { "LCA4", "ev4" },
|
|
|
65 { "EV4", "ev4" },
|
|
|
66 /* { "EV3", "ev3" }, */
|
|
|
67 { 0, 0 }
|
|
|
68 };
|
|
|
69
|
|
|
70 int i;
|
|
|
71
|
|
|
72 if (argc < 1)
|
|
|
73 return NULL;
|
|
|
74
|
|
|
75 if (strcmp (argv[0], "cpu") && strcmp (argv[0], "tune"))
|
|
|
76 return NULL;
|
|
|
77
|
|
|
78 f = fopen ("/proc/cpuinfo", "r");
|
|
|
79 if (f == NULL)
|
|
|
80 return NULL;
|
|
|
81
|
|
|
82 while (fgets (buf, sizeof (buf), f) != NULL)
|
|
|
83 if (strncmp (buf, "cpu model", sizeof ("cpu model") - 1) == 0)
|
|
|
84 {
|
|
|
85 for (i = 0; cpu_names [i].name; i++)
|
|
|
86 if (strstr (buf, cpu_names [i].name) != NULL)
|
|
|
87 {
|
|
|
88 cpu = cpu_names [i].cpu;
|
|
|
89 break;
|
|
|
90 }
|
|
|
91 break;
|
|
|
92 }
|
|
|
93
|
|
|
94 fclose (f);
|
|
|
95
|
|
|
96 if (cpu == NULL)
|
|
|
97 return NULL;
|
|
|
98
|
|
|
99 return concat ("-m", argv[0], "=", cpu, NULL);
|
|
|
100 }
|
