gdb: fix vfork with multiple threads

[deliverable/binutils-gdb.git] / bfd / gen-aout.c

diff --git a/bfd/gen-aout.c b/bfd/gen-aout.c
index 7515828fd7f9ab8359f5e62c909a88efbd068b56..74eebcfe2f8d727d14f442745e691760480d08e1 100644 (file)
--- a/bfd/gen-aout.c
+++ b/bfd/gen-aout.c
@@ -1,67 +1,117 @@
 /* Generate parameters for an a.out system.
-   Copyright (C) 1990-1991 Free Software Foundation, Inc.
+   Copyright (C) 1990-2021 Free Software Foundation, Inc.
 
-This file is part of BFD, the Binary File Descriptor library.
+   This file is part of BFD, the Binary File Descriptor library.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
 #include "/usr/include/a.out.h"
 #include <stdio.h>
 
-/* Stuffed value of "ABCD" in a long, followed by a 0. */
-long int str[2] = { 0x41424344, 0x0 };
+#ifndef _
+#define _(X) X
+#endif
 
-main ()
+int
+main (int argc, char** argv)
 {
   struct exec my_exec;
   int page_size;
-  FILE *file = fopen("gen-aout", "r");
-  if (file == NULL) {
-      fprintf(stderr, "Cannot open gen-aout!\n");
+  char * target;
+  char * arch = "unknown";
+  FILE * file;
+
+  target = argv[1];
+  if (target == NULL)
+    {
+      fprintf (stderr, "Usage: gen-aout target_name\n");
+      exit (1);
+    }
+
+  file = fopen ("gen-aout", "r");
+  if (file == NULL)
+    {
+      fprintf (stderr, "Cannot open gen-aout!\n");
       return -1;
-  }
-  if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) {
+    }
+
+  if (fread (&my_exec, sizeof (struct exec), 1, file) != 1)
+    {
       fprintf(stderr, "Cannot read gen-aout!\n");
       return -1;
-  }
+    }
 
-  if (strcmp ((char *)&str[0], "ABCD") == 0)
-    printf("#define TARGET_IS_BIG_ENDIAN_P\n");
-  else
-    printf("#define TARGET_IS_LITTLE_ENDIAN_P\n");
+  fclose (file);
 
 #ifdef N_TXTOFF
-  page_size = N_TXTOFF(my_exec);
+  page_size = N_TXTOFF (&my_exec);
   if (page_size == 0)
-    printf("#define N_HEADER_IN_TEXT(x) 1\n");
+    printf ("#define N_HEADER_IN_TEXT(x) 1\n");
   else
-    printf("#define N_HEADER_IN_TEXT(x) 0\n");
+    printf ("#define N_HEADER_IN_TEXT(x) 0\n");
 #endif
 
-  printf("#define BYTES_IN_WORD 4\n");
-  printf("#define ARCH 32\n");
+  printf("#define BYTES_IN_WORD %d\n", sizeof (int));
   if (my_exec.a_entry == 0)
-      printf("#define ENTRY_CAN_BE_ZERO\n");
-  printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry);
+    {
+      printf ("#define ENTRY_CAN_BE_ZERO\n");
+      printf ("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n");
+    }
+  else
+    {
+      printf ("/*#define ENTRY_CAN_BE_ZERO*/\n");
+      printf ("/*#define N_SHARED_LIB(x) 0*/\n");
+    }
+
+  printf ("#define TEXT_START_ADDR %d\n", my_exec.a_entry);
 
 #ifdef PAGSIZ
   if (page_size == 0)
     page_size = PAGSIZ;
 #endif
+
   if (page_size != 0)
-    printf("#define PAGE_SIZE %d\n", page_size);
+    printf ("#define TARGET_PAGE_SIZE %d\n", page_size);
+  else
+    printf ("/* #define TARGET_PAGE_SIZE ??? */\n");
+
+  printf ("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n");
+
+#ifdef vax
+  arch = "vax";
+#endif
+  if (arch[0] == '1')
+    {
+      fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;"));
+      fprintf (stderr, _("         fix DEFAULT_ARCH in the output file yourself\n"));
+      arch = "unknown";
+    }
+  printf ("#define DEFAULT_ARCH bfd_arch_%s\n\n", arch);
+
+  printf ("/* Do not \"beautify\" the CONCAT* macro args.  Traditional C will not");
+  printf ("   remove whitespace added here, and thus will fail to concatenate");
+  printf ("   the tokens.  */");
+  printf ("\n#define MY(OP) CONCAT2 (%s_,OP)\n\n", target);
+  printf ("#define TARGETNAME \"a.out-%s\"\n\n", target);
+
+  printf ("#include \"sysdep.h\"\n");
+  printf ("#include \"bfd.h\"\n");
+  printf ("#include \"libbfd.h\"\n");
+  printf ("#include \"libaout.h\"\n");
+  printf ("\n#include \"aout-target.h\"\n");
 
   return 0;
 }