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140 lines
2.8 KiB
140 lines
2.8 KiB
/* |
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* Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org> |
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* Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org> |
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* |
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* Released under the terms of the GNU GPL v2.0. |
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*/ |
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#include <stdarg.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "lkc.h" |
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/* file already present in list? If not add it */ |
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struct file *file_lookup(const char *name) |
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{ |
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struct file *file; |
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const char *file_name = sym_expand_string_value(name); |
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for (file = file_list; file; file = file->next) { |
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if (!strcmp(name, file->name)) { |
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free((void *)file_name); |
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return file; |
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} |
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} |
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file = malloc(sizeof(*file)); |
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memset(file, 0, sizeof(*file)); |
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file->name = file_name; |
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file->next = file_list; |
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file_list = file; |
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return file; |
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} |
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/* write a dependency file as used by kbuild to track dependencies */ |
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int file_write_dep(const char *name) |
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{ |
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struct symbol *sym, *env_sym; |
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struct expr *e; |
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struct file *file; |
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FILE *out; |
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if (!name) |
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name = ".kconfig.d"; |
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out = fopen("..config.tmp", "w"); |
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if (!out) |
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return 1; |
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fprintf(out, "deps_config := \\\n"); |
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for (file = file_list; file; file = file->next) { |
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if (file->next) |
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fprintf(out, "\t%s \\\n", file->name); |
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else |
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fprintf(out, "\t%s\n", file->name); |
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} |
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fprintf(out, "\n%s: \\\n" |
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"\t$(deps_config)\n\n", conf_get_autoconfig_name()); |
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expr_list_for_each_sym(sym_env_list, e, sym) { |
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struct property *prop; |
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const char *value; |
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prop = sym_get_env_prop(sym); |
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env_sym = prop_get_symbol(prop); |
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if (!env_sym) |
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continue; |
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value = getenv(env_sym->name); |
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if (!value) |
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value = ""; |
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fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value); |
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fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name()); |
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fprintf(out, "endif\n"); |
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} |
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fprintf(out, "\n$(deps_config): ;\n"); |
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fclose(out); |
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rename("..config.tmp", name); |
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return 0; |
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} |
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/* Allocate initial growable string */ |
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struct gstr str_new(void) |
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{ |
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struct gstr gs; |
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gs.s = malloc(sizeof(char) * 64); |
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gs.len = 64; |
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gs.max_width = 0; |
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strcpy(gs.s, "\0"); |
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return gs; |
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} |
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/* Allocate and assign growable string */ |
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struct gstr str_assign(const char *s) |
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{ |
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struct gstr gs; |
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gs.s = strdup(s); |
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gs.len = strlen(s) + 1; |
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gs.max_width = 0; |
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return gs; |
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} |
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/* Free storage for growable string */ |
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void str_free(struct gstr *gs) |
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{ |
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if (gs->s) |
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free(gs->s); |
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gs->s = NULL; |
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gs->len = 0; |
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} |
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/* Append to growable string */ |
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void str_append(struct gstr *gs, const char *s) |
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{ |
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size_t l; |
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if (s) { |
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l = strlen(gs->s) + strlen(s) + 1; |
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if (l > gs->len) { |
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gs->s = realloc(gs->s, l); |
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gs->len = l; |
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} |
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strcat(gs->s, s); |
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} |
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} |
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/* Append printf formatted string to growable string */ |
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void str_printf(struct gstr *gs, const char *fmt, ...) |
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{ |
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va_list ap; |
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char s[10000]; /* big enough... */ |
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va_start(ap, fmt); |
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vsnprintf(s, sizeof(s), fmt, ap); |
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str_append(gs, s); |
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va_end(ap); |
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} |
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/* Retrieve value of growable string */ |
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const char *str_get(struct gstr *gs) |
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{ |
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return gs->s; |
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} |
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