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概要[]
引数[]
- const char *name
実装[]
1223 /* Open assembly code output file. Do this even if -fsyntax-only is
1224 on, because then the driver will have provided the name of a
1225 temporary file or bit bucket for us. NAME is the file specified on
1226 the command line, possibly NULL. */
1227 static void
1228 init_asm_output (const char *name)
1229 {
1230 if (name == NULL && asm_file_name == 0)
1231 asm_out_file = stdout;
1232 else
1233 {
1234 if (asm_file_name == 0)
1235 {
1236 int len = strlen (dump_base_name);
1237 char *dumpname = xmalloc (len + 6);
1238 memcpy (dumpname, dump_base_name, len + 1);
1239 strip_off_ending (dumpname, len);
1240 strcat (dumpname, ".s");
1241 asm_file_name = dumpname;
1242 }
1243 if (!strcmp (asm_file_name, "-"))
1244 asm_out_file = stdout;
1245 else
1246 asm_out_file = fopen (asm_file_name, "w+b");
1247 if (asm_out_file == 0)
1248 fatal_error ("can%'t open %s for writing: %m", asm_file_name);
1249 }
1250
1251 if (!flag_syntax_only)
1252 {
1253 targetm.asm_out.file_start ();
1254
1255 #ifdef ASM_COMMENT_START
1256 if (flag_verbose_asm)
1257 {
1258 /* Print the list of options in effect. */
1259 print_version (asm_out_file, ASM_COMMENT_START);
1260 print_switch_values (asm_out_file, 0, MAX_LINE,
1261 ASM_COMMENT_START, " ", "\n");
1262 /* Add a blank line here so it appears in assembler output but not
1263 screen output. */
1264 fprintf (asm_out_file, "\n");
1265 }
1266 #endif
1267 }
1268 }