Build libgcc.a

From-SVN: r8674

gcc/config/msdos/configur.bat

@@ -12,7 +12,7 @@ update config\i386\i386.md md
 update config\i386\i386.c aux-output.c
 
 echo # Makefile generated by "configure.bat"> Makefile
-echo all.dos: cccp cc1 cc1obj xgcc s-objlist >> Makefile
+echo all.dos: cccp cc1 cc1obj xgcc libgcc.a s-objlist >> Makefile
 sed -f config/msdos/top.sed Makefile.in >> Makefile
 
 set LANG=

gcc/config/msdos/libgcc.mak

+# Build libgcc.a
+
+libgcc.a : libgcc1.c libgcc2.c mklibgcc
+	./mklibgcc -c
+	./mklibgcc '$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES)' libgcc1.c $(LIB1FUNCS)
+	./mklibgcc '$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES)' libgcc2.c $(LIB2FUNCS)
+	-command /c mklibnow.bat
+	-command /c del libgcc.a
+	ar rvs libgcc.a lgcctmp/*.o
+
+mklibgcc : config/msdos/mklibgcc.c
+	gcc $(CFLAGS) $^ -o $@
+
+

gcc/config/msdos/mklibgcc.c

+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+
+char *skips[] = {
+  "__main",
+  "_ctors",
+  "_exit",
+  "_ctor_list",
+  "_dtor_list",
+  0
+};
+
+int
+do_clean()
+{
+  DIR *dir;
+  struct dirent *de;
+  remove("mklibnow.bat");
+
+  dir = opendir("lgcctmp");
+  if (!dir)
+    return 0;
+  while ((de=readdir(dir)))
+  {
+    char buf[30];
+    if (de->d_name[0] == '.')
+      continue;
+    sprintf(buf, "lgcctmp/%s", de->d_name);
+    unlink(buf);
+  }
+  closedir(dir);
+  return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+  char *cc = argv[1];
+  char *csrc=argv[2];
+  int i;
+  FILE *batfile;
+  FILE *cfile;
+
+  if (argc > 1 && strcmp(argv[1], "-c")==0)
+    return do_clean();
+
+  mkdir("lgcctmp", 0755);
+
+  batfile = fopen("mklibnow.bat", "a");
+  if (!batfile)
+  {
+    perror("mklibnow.bat");
+    return 1;
+  }
+  fprintf(batfile, "@echo off\n");
+
+  for (i=3; i<argc; i++)
+  {
+    char basename[30], *bp;
+    int s;
+    for (s=0; skips[s]; s++)
+      if (strcmp(skips[s], argv[i]) == 0)
+	break;
+    if (skips[s])
+      continue;
+    strcpy(basename, "lgcctmp/");
+    if (strncmp(argv[i], "_fix", 4)==0)
+    {
+      strcat(basename, "fx");
+      strcat(basename, argv[i]+4);
+    }
+    else if (strncmp(argv[i], "_float", 4)==0)
+    {
+      strcat(basename, "flt");
+      strcat(basename, argv[i]+6);
+    }
+    else
+    {
+      strcat(basename, argv[i]);
+    }
+    bp = basename + strlen(basename);
+    fprintf(batfile, "%s -c %s.c -o %s.o\n", cc, basename, basename);
+    strcpy(bp, ".c");
+    cfile = fopen(basename, "w");
+    if (cfile)
+    {
+      *bp = 0;
+      fprintf(cfile, "#define L%s\n#include \"%s\"\n", argv[i], csrc);
+      fclose(cfile);
+    }
+    else
+      perror(basename);
+  }
+
+  fclose(batfile);
+  return 0;
+}

gcc/config/msdos/top.sed

@@ -36,3 +36,5 @@ s/tmp-/t-/g
 s/^\(SUBDIR_OBSTACK *=\).*$/\1 ..\/obstack.o/
 s/^\(SUBDIR_USE_ALLOCA *=\).*$/\1/
 s/^\(SUBDIR_MALLOC *=\).*$/\1/
+/^# Build libgcc.a/ r config/msdos/libgcc.mak
+/^# Build libgcc.a/,// d