summaryrefslogtreecommitdiff
path: root/lib/tcpu.c
blob: 408c403cc33d6c85880fbe25ec5b36dd63794778 (plain)
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
#include "system.h"
#include <rpmlib.h>
#include <rpmmacro.h>
#include "debug.h"

#define	_PROC_CPUINFO	"/proc/cpuinfo"
static const char * cpuinfo = _PROC_CPUINFO;

#define	_isspace(_c)	\
	((_c) == ' ' || (_c) == '\t' || (_c) == '\r' || (_c) == '\n')

/*
 * processor	: 0
 * vendor_id	: GenuineIntel
 * cpu family	: 6
 * model		: 8
 * model name	: Pentium III (Coppermine)
 * stepping	: 1
 * cpu MHz		: 664.597
 * cache size	: 256 KB
 * physical id	: 0
 * siblings	: 1
 * fdiv_bug	: no
 * hlt_bug		: no
 * f00f_bug	: no
 * coma_bug	: no
 * fpu		: yes
 * fpu_exception	: yes
 * cpuid level	: 2
 * wp		: yes
 * flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
 * bogomips	: 1327.10
*/

struct cpuinfo_s {
    const char *name;
    int done;
    int flags;
};

struct cpuinfo_s ctags[] = {
    { "processor",	0,  0 },
    { "vendor_id",	0,  0 },
    { "cpu_family",	0,  1 },
    { "model",		0,  1 },
    { "model_name",	0,  2 },
    { "stepping",	0,  1 },
    { "cpu_MHz",	0,  0 },
    { "cache_size",	0,  2 },
    { "physical_id",	0,  0 },
    { "siblings",	0,  0 },
    { "fdiv_bug",	0,  3 },
    { "hlt_bug",	0,  3 },
    { "f00f_bug",	0,  3 },
    { "coma_bug",	0,  3 },
    { "fpu",		0,  0 },	/* XXX flags attribute instead. */
    { "fpu_exception",	0,  3 },
    { "cpuid_level",	0,  0 },
    { "wp",		0,  3 },
    { "flags",		0,  4 },
    { "bogomips",	0,  0 },
    { NULL,		0, -1 }
};

static int rpmCtagFlags(char * name)
{
    struct cpuinfo_s * ct;
    int flags = -1;

    for (ct = ctags; ct->name != NULL; ct++) {
	if (strcmp(ct->name, name))
	    continue;
	if (ct->done)
	    continue;
	ct->done = 1;
	flags = ct->flags;
	break;
    }
    return flags;
}

static int rpmCpuinfo(void)
{
    char buf[BUFSIZ];
    char * f, * fe;
    char * g, * ge;
    char * t;
    FD_t fd = NULL;
    FILE * fp;
    
    int rc = -1;

    fd = Fopen(cpuinfo, "r.fpio");
    if (fd == NULL || Ferror(fd))
	goto exit;
    fp = fdGetFILE(fd);

    while((f = fgets(buf, sizeof(buf), fp)) != NULL) {
	/* rtrim on line. */
	ge = f + strlen(f);
	while (--ge > f && _isspace(*ge))
	    *ge = '\0';

	/* ltrim on line. */
	while (*f && _isspace(*f))
	    f++;

	/* split on ':' */
	fe = f;
	while (*fe && *fe != ':')
            fe++;
	if (*fe == '\0')
	    continue;
	g = fe + 1;

	/* rtrim on field 1. */
	*fe = '\0';
	while (--fe > f && _isspace(*fe))
	    *fe = '\0';
	if (*f == '\0')
	    continue;

	/* ltrim on field 2. */
	while (*g && _isspace(*g))
            g++;
	if (*g == '\0')
	    continue;

	for (t = f; *t != '\0'; t++) {
	    if (_isspace(*t))
		*t = '_';
	}

	switch (rpmCtagFlags(f)) {
	case -1:	/* not found */
	case 0:		/* ignore */
	default:
	    continue;
	    break;
	case 1:		/* Provides: cpuinfo(f) = g */
fprintf(stderr, "Provides: cpuinfo(%s) = %s\n", f, g);
	    break;
	case 2:		/* Provides: cpuinfo(g) */
	    for (t = g; *t != '\0'; t++) {
		if (_isspace(*t) || *t == '(' || *t == ')')
		    *t = '_';
	    }
fprintf(stderr, "Provides: cpuinfo(%s)\n", g);
	    break;
	case 3:		/* if ("yes") Provides: cpuinfo(f) */
	   if (strcmp(g, "yes"))
		break;
fprintf(stderr, "Provides: cpuinfo(%s)\n", f);
	    break;
	case 4:		/* Provides: cpuinfo(g[i]) */
	{   char ** av = NULL;
	    rc = poptParseArgvString(g, NULL, (const char ***)&av);
	    if (!rc && av != NULL)
	    while ((f = *av++) != NULL) {
fprintf(stderr, "Provides: cpuinfo(%s)\n", f);
	    }
	    if (av != NULL)
		free(av);
	}    break;
	}
    }

exit:
    if (fd) (void) Fclose(fd);
    return rc;
}

int main (int argc, char *argv[])
{

    int rc;

    rc = rpmCpuinfo();

    return rc;
}