Accept -Wl,Map=filename.map

The parameter is stored in tccstate, but nothing more.

Used by multiple software packages.
Current tested example is OpenWatcom-v2

--
bye bye ... Detlef

libtcc.c

@@ -844,6 +844,7 @@ LIBTCCAPI void tcc_delete(TCCState *s1)
     tcc_free(s1->elf_entryname);
     tcc_free(s1->init_symbol);
     tcc_free(s1->fini_symbol);
+    tcc_free(s1->mapfile);
     tcc_free(s1->outfile);
     tcc_free(s1->deps_outfile);
     dynarray_reset(&s1->files, &s1->nb_files);
@@ -1395,6 +1396,9 @@ static int tcc_set_linker(TCCState *s, const char *option)
         } else if (link_option(option, "init=", &p)) {
             copy_linker_arg(&s->init_symbol, p, 0);
             ignoring = 1;
+        } else if (link_option(option, "Map=", &p)) {
+            copy_linker_arg(&s->mapfile, p, 0);
+            ignoring = 1;
         } else if (link_option(option, "oformat=", &p)) {
 #if defined(TCC_TARGET_PE)
             if (strstart("pe-", &p)) {

tcc.c

@@ -144,7 +144,7 @@ static const char help2[] =
     "  -soname=                      set DT_SONAME elf tag\n"
     "  -Bsymbolic                    set DT_SYMBOLIC elf tag\n"
     "  -oformat=[elf32/64-* binary]  set executable output format\n"
-    "  -init= -fini= -as-needed -O   (ignored)\n"
+    "  -init= -fini= -Map= -as-needed -O   (ignored)\n"
     "Predefined macros:\n"
     "  tcc -E -dM - < /dev/null\n"
 #endif

tcc.h

@@ -828,6 +828,7 @@ struct TCCState {
     char *elf_entryname; /* "_start" unless set */
     char *init_symbol; /* symbols to call at load-time (not used currently) */
     char *fini_symbol; /* symbols to call at unload-time (not used currently) */
+    char *mapfile; /* create a mapfile (not used currently) */
 
     /* output type, see TCC_OUTPUT_XXX */
     int output_type;