implement -print-file-name

[r24100]

diff --git a/main.c b/main.c
index ca40b7f..023d26f 100644 (file)
--- a/main.c
+++ b/main.c
@@ -343,6 +343,30 @@ static void assemble(const char *out, const char *in)
        }
 }
 
+static void print_file_name(const char *file)
+{
+       add_flag(&ldflags_obst, "-print-file-name=%s", file);
+
+       obstack_1grow(&ldflags_obst, '\0');
+       const char *flags = obstack_finish(&ldflags_obst);
+
+       /* construct commandline */
+       obstack_printf(&ldflags_obst, "%s ", LINKER);
+       obstack_printf(&ldflags_obst, "%s", flags);
+       obstack_1grow(&ldflags_obst, '\0');
+
+       char *commandline = obstack_finish(&ldflags_obst);
+
+       if (verbose) {
+               puts(commandline);
+       }
+       int err = system(commandline);
+       if (err != EXIT_SUCCESS) {
+               fprintf(stderr, "linker reported an error\n");
+               exit(1);
+       }
+}
+
 static const char *try_dir(const char *dir)
 {
        if (dir == NULL)
@@ -602,6 +626,7 @@ int main(int argc, char **argv)
        initialize_firm();
 
        const char        *dumpfunction         = NULL;
+       const char        *print_file_name_file = NULL;
        compile_mode_t     mode                 = CompileAssembleLink;
        int                opt_level            = 1;
        int                result               = EXIT_SUCCESS;
@@ -830,7 +855,7 @@ int main(int argc, char **argv)
                                        strncpy(cpu_arch, opt, sizeof(cpu_arch));
                                }
                        } else if (option[0] == 'W') {
-                               if (option[1] == 'p') {
+                               if (strstart(option + 1, "p,")) {
                                        // pass options directly to the preprocessor
                                        const char *opt;
                                        GET_ARG_AFTER(opt, "-Wp,");
@@ -940,6 +965,8 @@ int main(int argc, char **argv)
                                        (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
                        } else if (streq(option, "version")) {
                                print_cparser_version();
+                       } else if (strstart(option, "print-file-name=")) {
+                               GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
                        } else if (option[0] == '-') {
                                /* double dash option */
                                ++option;
@@ -1043,6 +1070,11 @@ int main(int argc, char **argv)
                }
        }
 
+       if (print_file_name_file != NULL) {
+               print_file_name(print_file_name_file);
+               return 0;
+       }
+
        if (files == NULL) {
                fprintf(stderr, "error: no input files specified\n");
                argument_errors = true;