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TOMOYO Linux Cross Reference
Linux/scripts/kconfig/util.c

Version: ~ [ linux-5.4-rc7 ] ~ [ linux-5.3.11 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.84 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.154 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.201 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.201 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.77 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  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 <stdarg.h>
  9 #include <stdlib.h>
 10 #include <string.h>
 11 #include "lkc.h"
 12 
 13 /* file already present in list? If not add it */
 14 struct file *file_lookup(const char *name)
 15 {
 16         struct file *file;
 17         const char *file_name = sym_expand_string_value(name);
 18 
 19         for (file = file_list; file; file = file->next) {
 20                 if (!strcmp(name, file->name)) {
 21                         free((void *)file_name);
 22                         return file;
 23                 }
 24         }
 25 
 26         file = xmalloc(sizeof(*file));
 27         memset(file, 0, sizeof(*file));
 28         file->name = file_name;
 29         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 */
 35 int file_write_dep(const char *name)
 36 {
 37         struct symbol *sym, *env_sym;
 38         struct expr *e;
 39         struct file *file;
 40         FILE *out;
 41 
 42         if (!name)
 43                 name = ".kconfig.d";
 44         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         }
 54         fprintf(out, "\n%s: \\\n"
 55                      "\t$(deps_config)\n\n", conf_get_autoconfig_name());
 56 
 57         expr_list_for_each_sym(sym_env_list, e, sym) {
 58                 struct property *prop;
 59                 const char *value;
 60 
 61                 prop = sym_get_env_prop(sym);
 62                 env_sym = prop_get_symbol(prop);
 63                 if (!env_sym)
 64                         continue;
 65                 value = getenv(env_sym->name);
 66                 if (!value)
 67                         value = "";
 68                 fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
 69                 fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
 70                 fprintf(out, "endif\n");
 71         }
 72 
 73         fprintf(out, "\n$(deps_config): ;\n");
 74         fclose(out);
 75         rename("..config.tmp", name);
 76         return 0;
 77 }
 78 
 79 
 80 /* Allocate initial growable string */
 81 struct gstr str_new(void)
 82 {
 83         struct gstr gs;
 84         gs.s = xmalloc(sizeof(char) * 64);
 85         gs.len = 64;
 86         gs.max_width = 0;
 87         strcpy(gs.s, "\0");
 88         return gs;
 89 }
 90 
 91 /* Free storage for growable string */
 92 void str_free(struct gstr *gs)
 93 {
 94         if (gs->s)
 95                 free(gs->s);
 96         gs->s = NULL;
 97         gs->len = 0;
 98 }
 99 
100 /* Append to growable string */
101 void str_append(struct gstr *gs, const char *s)
102 {
103         size_t l;
104         if (s) {
105                 l = strlen(gs->s) + strlen(s) + 1;
106                 if (l > gs->len) {
107                         gs->s   = realloc(gs->s, l);
108                         gs->len = l;
109                 }
110                 strcat(gs->s, s);
111         }
112 }
113 
114 /* Append printf formatted string to growable string */
115 void str_printf(struct gstr *gs, const char *fmt, ...)
116 {
117         va_list ap;
118         char s[10000]; /* big enough... */
119         va_start(ap, fmt);
120         vsnprintf(s, sizeof(s), fmt, ap);
121         str_append(gs, s);
122         va_end(ap);
123 }
124 
125 /* Retrieve value of growable string */
126 const char *str_get(struct gstr *gs)
127 {
128         return gs->s;
129 }
130 
131 void *xmalloc(size_t size)
132 {
133         void *p = malloc(size);
134         if (p)
135                 return p;
136         fprintf(stderr, "Out of memory.\n");
137         exit(1);
138 }
139 
140 void *xcalloc(size_t nmemb, size_t size)
141 {
142         void *p = calloc(nmemb, size);
143         if (p)
144                 return p;
145         fprintf(stderr, "Out of memory.\n");
146         exit(1);
147 }
148 

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