blob: 78b5c04e736bcfad3f25d7f85fe2b5660572cb52 [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
8#include <string.h>
9#include "lkc.h"
10
11/* file already present in list? If not add it */
12struct file *file_lookup(const char *name)
13{
14 struct file *file;
15
16 for (file = file_list; file; file = file->next) {
17 if (!strcmp(name, file->name))
18 return file;
19 }
20
21 file = malloc(sizeof(*file));
22 memset(file, 0, sizeof(*file));
23 file->name = strdup(name);
24 file->next = file_list;
25 file_list = file;
26 return file;
27}
28
29/* write a dependency file as used by kbuild to track dependencies */
30int file_write_dep(const char *name)
31{
Roman Zippel93449082008-01-14 04:50:54 +010032 struct symbol *sym, *env_sym;
33 struct expr *e;
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 struct file *file;
35 FILE *out;
36
37 if (!name)
Sam Ravnborg752625c2005-12-26 23:34:03 +010038 name = ".kconfig.d";
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 out = fopen("..config.tmp", "w");
40 if (!out)
41 return 1;
42 fprintf(out, "deps_config := \\\n");
43 for (file = file_list; file; file = file->next) {
44 if (file->next)
45 fprintf(out, "\t%s \\\n", file->name);
46 else
47 fprintf(out, "\t%s\n", file->name);
48 }
Markus Heidelberg12122f62009-05-18 01:36:54 +020049 fprintf(out, "\n%s: \\\n"
50 "\t$(deps_config)\n\n", conf_get_autoconfig_name());
Roman Zippel93449082008-01-14 04:50:54 +010051
52 expr_list_for_each_sym(sym_env_list, e, sym) {
53 struct property *prop;
54 const char *value;
55
56 prop = sym_get_env_prop(sym);
57 env_sym = prop_get_symbol(prop);
58 if (!env_sym)
59 continue;
60 value = getenv(env_sym->name);
61 if (!value)
62 value = "";
63 fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
Markus Heidelberg12122f62009-05-18 01:36:54 +020064 fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
Roman Zippel93449082008-01-14 04:50:54 +010065 fprintf(out, "endif\n");
66 }
67
68 fprintf(out, "\n$(deps_config): ;\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 fclose(out);
70 rename("..config.tmp", name);
71 return 0;
72}
73
74
Thomas Weber31a2d312010-02-19 12:43:44 +010075/* Allocate initial growable string */
Linus Torvalds1da177e2005-04-16 15:20:36 -070076struct gstr str_new(void)
77{
78 struct gstr gs;
79 gs.s = malloc(sizeof(char) * 64);
Christophe Jaillet107f43a2008-05-18 23:10:24 +020080 gs.len = 64;
Vadim Bendebury (вб)da60fbb2009-12-20 00:29:49 -080081 gs.max_width = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 strcpy(gs.s, "\0");
83 return gs;
84}
85
86/* Allocate and assign growable string */
87struct gstr str_assign(const char *s)
88{
89 struct gstr gs;
90 gs.s = strdup(s);
91 gs.len = strlen(s) + 1;
Vadim Bendebury (вб)da60fbb2009-12-20 00:29:49 -080092 gs.max_width = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 return gs;
94}
95
96/* Free storage for growable string */
97void str_free(struct gstr *gs)
98{
99 if (gs->s)
100 free(gs->s);
101 gs->s = NULL;
102 gs->len = 0;
103}
104
105/* Append to growable string */
106void str_append(struct gstr *gs, const char *s)
107{
Sam Ravnborga67cb132007-09-19 21:23:09 +0200108 size_t l;
109 if (s) {
110 l = strlen(gs->s) + strlen(s) + 1;
111 if (l > gs->len) {
112 gs->s = realloc(gs->s, l);
113 gs->len = l;
114 }
115 strcat(gs->s, s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117}
118
119/* Append printf formatted string to growable string */
120void str_printf(struct gstr *gs, const char *fmt, ...)
121{
122 va_list ap;
123 char s[10000]; /* big enough... */
124 va_start(ap, fmt);
125 vsnprintf(s, sizeof(s), fmt, ap);
126 str_append(gs, s);
127 va_end(ap);
128}
129
Matt Mackall4a4efbd2006-01-03 13:27:11 +0100130/* Retrieve value of growable string */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131const char *str_get(struct gstr *gs)
132{
133 return gs->s;
134}
135