blob: e07d557bb3a9263efaf3ee4b849003fd7b916d3a [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>
Linus Torvalds1da177e2005-04-16 15:20:36 -07009#include <string.h>
10#include "lkc.h"
11
12/* file already present in list? If not add it */
13struct file *file_lookup(const char *name)
14{
15 struct file *file;
Arnaud Lacombec7abe862010-09-04 16:11:26 -040016 const char *file_name = sym_expand_string_value(name);
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
18 for (file = file_list; file; file = file->next) {
Arnaud Lacombec7abe862010-09-04 16:11:26 -040019 if (!strcmp(name, file->name)) {
20 free((void *)file_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 return file;
Arnaud Lacombec7abe862010-09-04 16:11:26 -040022 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070023 }
24
25 file = malloc(sizeof(*file));
26 memset(file, 0, sizeof(*file));
Arnaud Lacombec7abe862010-09-04 16:11:26 -040027 file->name = file_name;
Linus Torvalds1da177e2005-04-16 15:20:36 -070028 file->next = file_list;
29 file_list = file;
30 return file;
31}
32
33/* write a dependency file as used by kbuild to track dependencies */
34int file_write_dep(const char *name)
35{
Roman Zippel93449082008-01-14 04:50:54 +010036 struct symbol *sym, *env_sym;
37 struct expr *e;
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 struct file *file;
39 FILE *out;
40
41 if (!name)
Sam Ravnborg752625c2005-12-26 23:34:03 +010042 name = ".kconfig.d";
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 out = fopen("..config.tmp", "w");
44 if (!out)
45 return 1;
46 fprintf(out, "deps_config := \\\n");
47 for (file = file_list; file; file = file->next) {
48 if (file->next)
49 fprintf(out, "\t%s \\\n", file->name);
50 else
51 fprintf(out, "\t%s\n", file->name);
52 }
Markus Heidelberg12122f62009-05-18 01:36:54 +020053 fprintf(out, "\n%s: \\\n"
54 "\t$(deps_config)\n\n", conf_get_autoconfig_name());
Roman Zippel93449082008-01-14 04:50:54 +010055
56 expr_list_for_each_sym(sym_env_list, e, sym) {
57 struct property *prop;
58 const char *value;
59
60 prop = sym_get_env_prop(sym);
61 env_sym = prop_get_symbol(prop);
62 if (!env_sym)
63 continue;
64 value = getenv(env_sym->name);
65 if (!value)
66 value = "";
67 fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
Markus Heidelberg12122f62009-05-18 01:36:54 +020068 fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
Roman Zippel93449082008-01-14 04:50:54 +010069 fprintf(out, "endif\n");
70 }
71
72 fprintf(out, "\n$(deps_config): ;\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 fclose(out);
74 rename("..config.tmp", name);
75 return 0;
76}
77
78
Thomas Weber31a2d312010-02-19 12:43:44 +010079/* Allocate initial growable string */
Linus Torvalds1da177e2005-04-16 15:20:36 -070080struct gstr str_new(void)
81{
82 struct gstr gs;
83 gs.s = malloc(sizeof(char) * 64);
Christophe Jaillet107f43a2008-05-18 23:10:24 +020084 gs.len = 64;
Vadim Bendebury (вб)da60fbb2009-12-20 00:29:49 -080085 gs.max_width = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 strcpy(gs.s, "\0");
87 return gs;
88}
89
90/* Allocate and assign growable string */
91struct gstr str_assign(const char *s)
92{
93 struct gstr gs;
94 gs.s = strdup(s);
95 gs.len = strlen(s) + 1;
Vadim Bendebury (вб)da60fbb2009-12-20 00:29:49 -080096 gs.max_width = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 return gs;
98}
99
100/* Free storage for growable string */
101void str_free(struct gstr *gs)
102{
103 if (gs->s)
104 free(gs->s);
105 gs->s = NULL;
106 gs->len = 0;
107}
108
109/* Append to growable string */
110void str_append(struct gstr *gs, const char *s)
111{
Sam Ravnborga67cb132007-09-19 21:23:09 +0200112 size_t l;
113 if (s) {
114 l = strlen(gs->s) + strlen(s) + 1;
115 if (l > gs->len) {
116 gs->s = realloc(gs->s, l);
117 gs->len = l;
118 }
119 strcat(gs->s, s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121}
122
123/* Append printf formatted string to growable string */
124void str_printf(struct gstr *gs, const char *fmt, ...)
125{
126 va_list ap;
127 char s[10000]; /* big enough... */
128 va_start(ap, fmt);
129 vsnprintf(s, sizeof(s), fmt, ap);
130 str_append(gs, s);
131 va_end(ap);
132}
133
Matt Mackall4a4efbd2006-01-03 13:27:11 +0100134/* Retrieve value of growable string */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135const char *str_get(struct gstr *gs)
136{
137 return gs->s;
138}
139