blob: 94f9c83e324f4a72b79b6fbf8ca6b3999d046702 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
3 * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
4 *
5 * Released under the terms of the GNU GPL v2.0.
6 */
7
Arnaud Lacombe10a4b272011-06-01 16:00:46 -04008#include <stdarg.h>
Arnaud Lacombe02d95c92011-06-01 16:08:14 -04009#include <stdlib.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#include <string.h>
11#include "lkc.h"
12
13/* file already present in list? If not add it */
14struct file *file_lookup(const char *name)
15{
16 struct file *file;
Arnaud Lacombec7abe862010-09-04 16:11:26 -040017 const char *file_name = sym_expand_string_value(name);
Linus Torvalds1da177e2005-04-16 15:20:36 -070018
19 for (file = file_list; file; file = file->next) {
Arnaud Lacombec7abe862010-09-04 16:11:26 -040020 if (!strcmp(name, file->name)) {
21 free((void *)file_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 return file;
Arnaud Lacombec7abe862010-09-04 16:11:26 -040023 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 }
25
Alan Cox177acf72012-11-06 14:32:08 +000026 file = xmalloc(sizeof(*file));
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 memset(file, 0, sizeof(*file));
Arnaud Lacombec7abe862010-09-04 16:11:26 -040028 file->name = file_name;
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 file->next = file_list;
30 file_list = file;
31 return file;
32}
33
34/* write a dependency file as used by kbuild to track dependencies */
35int file_write_dep(const char *name)
36{
Roman Zippel93449082008-01-14 04:50:54 +010037 struct symbol *sym, *env_sym;
38 struct expr *e;
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 struct file *file;
40 FILE *out;
41
42 if (!name)
Sam Ravnborg752625c2005-12-26 23:34:03 +010043 name = ".kconfig.d";
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 out = fopen("..config.tmp", "w");
45 if (!out)
46 return 1;
47 fprintf(out, "deps_config := \\\n");
48 for (file = file_list; file; file = file->next) {
49 if (file->next)
50 fprintf(out, "\t%s \\\n", file->name);
51 else
52 fprintf(out, "\t%s\n", file->name);
53 }
Markus Heidelberg12122f62009-05-18 01:36:54 +020054 fprintf(out, "\n%s: \\\n"
55 "\t$(deps_config)\n\n", conf_get_autoconfig_name());
Roman Zippel93449082008-01-14 04:50:54 +010056
57 expr_list_for_each_sym(sym_env_list, e, sym) {
58 struct property *prop;
59 const char *value;
60
61 prop = sym_get_env_prop(sym);
62 env_sym = prop_get_symbol(prop);
63 if (!env_sym)
64 continue;
65 value = getenv(env_sym->name);
66 if (!value)
67 value = "";
68 fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
Markus Heidelberg12122f62009-05-18 01:36:54 +020069 fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
Roman Zippel93449082008-01-14 04:50:54 +010070 fprintf(out, "endif\n");
71 }
72
73 fprintf(out, "\n$(deps_config): ;\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 fclose(out);
75 rename("..config.tmp", name);
76 return 0;
77}
78
79
Thomas Weber31a2d312010-02-19 12:43:44 +010080/* Allocate initial growable string */
Linus Torvalds1da177e2005-04-16 15:20:36 -070081struct gstr str_new(void)
82{
83 struct gstr gs;
Alan Cox177acf72012-11-06 14:32:08 +000084 gs.s = xmalloc(sizeof(char) * 64);
Christophe Jaillet107f43a2008-05-18 23:10:24 +020085 gs.len = 64;
Vadim Bendebury (вб)da60fbb2009-12-20 00:29:49 -080086 gs.max_width = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 strcpy(gs.s, "\0");
88 return gs;
89}
90
91/* Allocate and assign growable string */
92struct gstr str_assign(const char *s)
93{
94 struct gstr gs;
95 gs.s = strdup(s);
96 gs.len = strlen(s) + 1;
Vadim Bendebury (вб)da60fbb2009-12-20 00:29:49 -080097 gs.max_width = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 return gs;
99}
100
101/* Free storage for growable string */
102void str_free(struct gstr *gs)
103{
104 if (gs->s)
105 free(gs->s);
106 gs->s = NULL;
107 gs->len = 0;
108}
109
110/* Append to growable string */
111void str_append(struct gstr *gs, const char *s)
112{
Sam Ravnborga67cb132007-09-19 21:23:09 +0200113 size_t l;
114 if (s) {
115 l = strlen(gs->s) + strlen(s) + 1;
116 if (l > gs->len) {
117 gs->s = realloc(gs->s, l);
118 gs->len = l;
119 }
120 strcat(gs->s, s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122}
123
124/* Append printf formatted string to growable string */
125void str_printf(struct gstr *gs, const char *fmt, ...)
126{
127 va_list ap;
128 char s[10000]; /* big enough... */
129 va_start(ap, fmt);
130 vsnprintf(s, sizeof(s), fmt, ap);
131 str_append(gs, s);
132 va_end(ap);
133}
134
Matt Mackall4a4efbd2006-01-03 13:27:11 +0100135/* Retrieve value of growable string */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136const char *str_get(struct gstr *gs)
137{
138 return gs->s;
139}
140
Alan Cox177acf72012-11-06 14:32:08 +0000141void *xmalloc(size_t size)
142{
143 void *p = malloc(size);
144 if (p)
145 return p;
146 fprintf(stderr, "Out of memory.\n");
147 exit(1);
148}
149
150void *xcalloc(size_t nmemb, size_t size)
151{
152 void *p = calloc(nmemb, size);
153 if (p)
154 return p;
155 fprintf(stderr, "Out of memory.\n");
156 exit(1);
157}