OpenWrt – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | /* |
2 | * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org> |
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3 | * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org> |
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4 | * |
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5 | * Released under the terms of the GNU GPL v2.0. |
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6 | */ |
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7 | |||
8 | #include <stdarg.h> |
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9 | #include <stdlib.h> |
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10 | #include <string.h> |
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11 | #include "lkc.h" |
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12 | |||
13 | /* file already present in list? If not add it */ |
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14 | struct file *file_lookup(const char *name) |
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15 | { |
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16 | struct file *file; |
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17 | const char *file_name = sym_expand_string_value(name); |
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18 | |||
19 | for (file = file_list; file; file = file->next) { |
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20 | if (!strcmp(name, file->name)) { |
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21 | free((void *)file_name); |
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22 | return file; |
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23 | } |
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24 | } |
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25 | |||
26 | file = xmalloc(sizeof(*file)); |
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27 | memset(file, 0, sizeof(*file)); |
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28 | file->name = file_name; |
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29 | file->next = file_list; |
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30 | file_list = file; |
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31 | return file; |
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32 | } |
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33 | |||
34 | /* write a dependency file as used by kbuild to track dependencies */ |
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35 | int file_write_dep(const char *name) |
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36 | { |
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37 | struct symbol *sym, *env_sym; |
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38 | struct expr *e; |
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39 | struct file *file; |
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40 | FILE *out; |
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41 | |||
42 | if (!name) |
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43 | name = ".kconfig.d"; |
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44 | out = fopen("..config.tmp", "w"); |
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45 | if (!out) |
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46 | return 1; |
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47 | fprintf(out, "deps_config := \\\n"); |
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48 | for (file = file_list; file; file = file->next) { |
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49 | if (file->next) |
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50 | fprintf(out, "\t%s \\\n", file->name); |
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51 | else |
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52 | fprintf(out, "\t%s\n", file->name); |
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53 | } |
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54 | fprintf(out, "\n%s: \\\n" |
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55 | "\t$(deps_config)\n\n", conf_get_autoconfig_name()); |
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56 | |||
57 | expr_list_for_each_sym(sym_env_list, e, sym) { |
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58 | struct property *prop; |
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59 | const char *value; |
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60 | |||
61 | prop = sym_get_env_prop(sym); |
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62 | env_sym = prop_get_symbol(prop); |
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63 | if (!env_sym) |
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64 | continue; |
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65 | value = getenv(env_sym->name); |
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66 | if (!value) |
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67 | value = ""; |
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68 | fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value); |
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69 | fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name()); |
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70 | fprintf(out, "endif\n"); |
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71 | } |
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72 | |||
73 | fprintf(out, "\n$(deps_config): ;\n"); |
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74 | fclose(out); |
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75 | rename("..config.tmp", name); |
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76 | return 0; |
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77 | } |
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78 | |||
79 | |||
80 | /* Allocate initial growable string */ |
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81 | struct gstr str_new(void) |
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82 | { |
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83 | struct gstr gs; |
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84 | gs.s = xmalloc(sizeof(char) * 64); |
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85 | gs.len = 64; |
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86 | gs.max_width = 0; |
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87 | strcpy(gs.s, "\0"); |
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88 | return gs; |
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89 | } |
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90 | |||
91 | /* Free storage for growable string */ |
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92 | void str_free(struct gstr *gs) |
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93 | { |
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94 | if (gs->s) |
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95 | free(gs->s); |
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96 | gs->s = NULL; |
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97 | gs->len = 0; |
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98 | } |
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99 | |||
100 | /* Append to growable string */ |
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101 | void str_append(struct gstr *gs, const char *s) |
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102 | { |
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103 | size_t l; |
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104 | if (s) { |
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105 | l = strlen(gs->s) + strlen(s) + 1; |
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106 | if (l > gs->len) { |
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107 | gs->s = realloc(gs->s, l); |
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108 | gs->len = l; |
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109 | } |
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110 | strcat(gs->s, s); |
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111 | } |
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112 | } |
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113 | |||
114 | /* Append printf formatted string to growable string */ |
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115 | void str_printf(struct gstr *gs, const char *fmt, ...) |
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116 | { |
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117 | va_list ap; |
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118 | char s[10000]; /* big enough... */ |
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119 | va_start(ap, fmt); |
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120 | vsnprintf(s, sizeof(s), fmt, ap); |
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121 | str_append(gs, s); |
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122 | va_end(ap); |
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123 | } |
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124 | |||
125 | /* Retrieve value of growable string */ |
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126 | const char *str_get(struct gstr *gs) |
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127 | { |
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128 | return gs->s; |
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129 | } |
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130 | |||
131 | void *xmalloc(size_t size) |
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132 | { |
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133 | void *p = malloc(size); |
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134 | if (p) |
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135 | return p; |
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136 | fprintf(stderr, "Out of memory.\n"); |
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137 | exit(1); |
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138 | } |
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139 | |||
140 | void *xcalloc(size_t nmemb, size_t size) |
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141 | { |
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142 | void *p = calloc(nmemb, size); |
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143 | if (p) |
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144 | return p; |
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145 | fprintf(stderr, "Out of memory.\n"); |
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146 | exit(1); |
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147 | } |