kconfig: remove sym_expand_string_value()
There is no more caller of sym_expand_string_value(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Kees Cook <keescook@chromium.org>
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@ -31,7 +31,6 @@ extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];
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struct symbol * sym_lookup(const char *name, int flags);
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struct symbol * sym_find(const char *name);
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char *sym_expand_string_value(const char *in);
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const char * sym_escape_string_value(const char *in);
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struct symbol ** sym_re_search(const char *pattern);
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const char * sym_type_name(enum symbol_type type);
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@ -879,59 +879,6 @@ struct symbol *sym_find(const char *name)
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return symbol;
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}
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/*
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* Expand symbol's names embedded in the string given in argument. Symbols'
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* name to be expanded shall be prefixed by a '$'. Unknown symbol expands to
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* the empty string.
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*/
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char *sym_expand_string_value(const char *in)
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{
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const char *src;
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char *res;
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size_t reslen;
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/*
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* Note: 'in' might come from a token that's about to be
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* freed, so make sure to always allocate a new string
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*/
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reslen = strlen(in) + 1;
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res = xmalloc(reslen);
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res[0] = '\0';
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while ((src = strchr(in, '$'))) {
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char *p, name[SYMBOL_MAXLENGTH];
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const char *symval = "";
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struct symbol *sym;
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size_t newlen;
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strncat(res, in, src - in);
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src++;
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p = name;
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while (isalnum(*src) || *src == '_')
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*p++ = *src++;
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*p = '\0';
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sym = sym_find(name);
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if (sym != NULL) {
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sym_calc_value(sym);
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symval = sym_get_string_value(sym);
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}
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newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
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if (newlen > reslen) {
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reslen = newlen;
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res = xrealloc(res, reslen);
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}
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strcat(res, symval);
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in = src;
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}
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strcat(res, in);
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return res;
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}
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const char *sym_escape_string_value(const char *in)
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{
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const char *p;
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