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kconfig: autogenerated config_is_xxx macro
this will allow to use to use if(config_is_xxx()) if(config_is_xxx_module()) in the code instead of #ifdef CONFIG_xxx #ifdef CONFIG_xxx_MODULE and now let the compiler remove the non usefull code and not the pre-processor as done in the mach-types for arm as exmaple Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
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76ce94a371
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@ -778,6 +778,29 @@ out:
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return res;
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}
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static void conf_write_function_autoconf(FILE *out, char* conf, char* name,
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int val)
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{
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char c;
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char *tmp, *d;
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d = strdup(conf);
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tmp = d;
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while ((c = *conf++))
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*d++ = tolower(c);
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fprintf(out, "#define %sis_", tmp);
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free(tmp);
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d = strdup(name);
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tmp = d;
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while ((c = *name++))
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*d++ = tolower(c);
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fprintf(out, "%s%s() %d\n", tmp, (val > 1) ? "_module" : "",
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val ? 1 : 0);
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free(tmp);
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}
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int conf_write_autoconf(void)
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{
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struct symbol *sym;
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@ -785,6 +808,7 @@ int conf_write_autoconf(void)
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const char *name;
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FILE *out, *tristate, *out_h;
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int i;
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int fct_val;
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sym_clear_all_valid();
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@ -825,6 +849,7 @@ int conf_write_autoconf(void)
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rootmenu.prompt->text);
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for_all_symbols(i, sym) {
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fct_val = 1;
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sym_calc_value(sym);
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if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
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continue;
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@ -838,12 +863,14 @@ int conf_write_autoconf(void)
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case S_TRISTATE:
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switch (sym_get_tristate_value(sym)) {
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case no:
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fct_val = 0;
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break;
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case mod:
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fprintf(tristate, "%s%s=M\n",
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CONFIG_, sym->name);
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fprintf(out_h, "#define %s%s_MODULE 1\n",
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CONFIG_, sym->name);
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fct_val = 2;
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break;
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case yes:
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if (sym->type == S_TRISTATE)
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@ -870,8 +897,10 @@ int conf_write_autoconf(void)
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CONFIG_, sym->name, str);
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break;
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default:
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fct_val = 0;
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break;
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}
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conf_write_function_autoconf(out_h, CONFIG_, sym->name, fct_val);
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}
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fclose(out);
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fclose(tristate);
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