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-rw-r--r--elf/vismain.c266
1 files changed, 266 insertions, 0 deletions
diff --git a/elf/vismain.c b/elf/vismain.c
new file mode 100644
index 0000000000..f72c3e17a1
--- /dev/null
+++ b/elf/vismain.c
@@ -0,0 +1,266 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Prototypes for the functions in the DSOs. */
+extern int calllocal1 (void);
+extern int (*getlocal1 (void)) (void);
+extern int callinmod1 (void);
+extern int (*getinmod1 (void)) (void);
+extern int callitcpt1 (void);
+extern int (*getitcpt1 (void)) (void);
+extern const char *getvarlocal1 (void);
+extern const char *getvarinmod1 (void);
+extern const char *getvaritcpt1 (void);
+extern int calllocal2 (void);
+extern int (*getlocal2 (void)) (void);
+extern int callinmod2 (void);
+extern int (*getinmod2 (void)) (void);
+extern int callitcpt2 (void);
+extern int (*getitcpt2 (void)) (void);
+extern const char *getvarlocal2 (void);
+extern const char *getvarinmod2 (void);
+extern const char *getvaritcpt2 (void);
+extern int callitcpt3 (void);
+extern int (*getitcpt3 (void)) (void);
+extern const char *getvaritcpt3 (void);
+
+extern int protinmod (void);
+extern int protitcpt (void);
+
+/* Prototypes for local functions. */
+extern int protlocal (void);
+
+const char *protvarlocal = __FILE__;
+extern const char *protvarinmod;
+extern const char *protvaritcpt;
+
+int
+main (void)
+{
+ int res = 0;
+ int val;
+
+ /* First test: check whether .protected is handled correctly by the
+ assembler/linker. The uses of `protlocal' in the DSOs and in the
+ main program should all be resolved with the local definitions. */
+ val = protlocal () + calllocal1 () + calllocal2 ();
+ if (val != 0x155)
+ {
+ puts ("\
+The handling of `.protected' seems to be implemented incorrectly: giving up");
+ abort ();
+ }
+ puts ("`.protected' seems to be handled correctly, good!");
+
+ /* Function pointers: for functions which are marked local and for
+ which definitions are available all function pointers must be
+ distinct. */
+ if (protlocal == getlocal1 ())
+ {
+ puts ("`protlocal' in main and mod1 have same address");
+ res = 1;
+ }
+ if (protlocal == getlocal2 ())
+ {
+ puts ("`protlocal' in main and mod2 have same address");
+ res = 1;
+ }
+ if (getlocal1 () == getlocal2 ())
+ {
+ puts ("`protlocal' in mod1 and mod2 have same address");
+ res = 1;
+ }
+ if (getlocal1 () () + getlocal2 () () != 0x44)
+ {
+ puts ("pointers to `protlocal' in mod1 or mod2 incorrect");
+ res = 1;
+ }
+
+ /* Next test. This is similar to the last one but the function we
+ are calling is not defined in the main object. This means that
+ the invocation in the main object uses the definition in the
+ first DSO. */
+ if (protinmod != getinmod1 ())
+ {
+ puts ("`protinmod' in main and mod1 don't have same address");
+ res = 1;
+ }
+ if (protinmod == getinmod2 ())
+ {
+ puts ("`protinmod' in main and mod2 have same address");
+ res = 1;
+ }
+ if (getinmod1 () == getinmod2 ())
+ {
+ puts ("`protinmod' in mod1 and mod2 have same address");
+ res = 1;
+ }
+ if (protinmod () + getinmod1 () () + getinmod2 () () != 0x4800)
+ {
+ puts ("pointers to `protinmod' in mod1 or mod2 incorrect");
+ res = 1;
+ }
+ val = protinmod () + callinmod1 () + callinmod2 ();
+ if (val != 0x15800)
+ {
+ printf ("calling of `protinmod' leads to wrong result (%#x)\n", val);
+ res = 1;
+ }
+
+ /* A very similar text. Same setup for the main object and the modules
+ but this time we have another definition in a preloaded module. This
+ one intercepts the references from the main object. */
+ if (protitcpt != getitcpt3 ())
+ {
+ puts ("`protitcpt' in main and mod3 don't have same address");
+ res = 1;
+ }
+ if (protitcpt == getitcpt1 ())
+ {
+ puts ("`protitcpt' in main and mod1 have same address");
+ res = 1;
+ }
+ if (protitcpt == getitcpt2 ())
+ {
+ puts ("`protitcpt' in main and mod2 have same address");
+ res = 1;
+ }
+ if (getitcpt1 () == getitcpt2 ())
+ {
+ puts ("`protitcpt' in mod1 and mod2 have same address");
+ res = 1;
+ }
+ val = protitcpt () + getitcpt1 () () + getitcpt2 () () + getitcpt3 () ();
+ if (val != 0x8440000)
+ {
+ printf ("\
+pointers to `protitcpt' in mod1 or mod2 or mod3 incorrect (%#x)\n", val);
+ res = 1;
+ }
+ val = protitcpt () + callitcpt1 () + callitcpt2 () + callitcpt3 ();
+ if (val != 0x19540000)
+ {
+ printf ("calling of `protitcpt' leads to wrong result (%#x)\n", val);
+ res = 1;
+ }
+
+ /* Now look at variables. First a variable which is available
+ everywhere. We must have three different addresses. */
+ if (protvarlocal == getvarlocal1 ())
+ {
+ puts ("`protvarlocal' in main and mod1 have same address");
+ res = 1;
+ }
+ if (protvarlocal == getvarlocal2 ())
+ {
+ puts ("`protvarlocal' in main and mod2 have same address");
+ res = 1;
+ }
+ if (getvarlocal1 () == getvarlocal2 ())
+ {
+ puts ("`protvarlocal' in mod1 and mod2 have same address");
+ res = 1;
+ }
+ if (strcmp (protvarlocal, __FILE__) != 0)
+ {
+ puts ("`protvarlocal in main has wrong value");
+ res = 1;
+ }
+ if (strcmp (getvarlocal1 (), "vismod1.c") != 0)
+ {
+ puts ("`getvarlocal1' returns wrong value");
+ res = 1;
+ }
+ if (strcmp (getvarlocal2 (), "vismod2.c") != 0)
+ {
+ puts ("`getvarlocal2' returns wrong value");
+ res = 1;
+ }
+
+ /* Now the case where there is no local definition. */
+ if (protvarinmod != getvarinmod1 ())
+ {
+ puts ("`protvarinmod' in main and mod1 have not same address");
+ res = 1;
+ }
+ if (protvarinmod == getvarinmod2 ())
+ {
+ puts ("`protvarinmod' in main and mod2 have same address");
+ res = 1;
+ }
+ if (strcmp (getvarinmod1 (), "vismod1.c") != 0)
+ {
+ puts ("`getvarinmod1' returns wrong value");
+ res = 1;
+ }
+ if (strcmp (getvarinmod2 (), "vismod2.c") != 0)
+ {
+ puts ("`getvarinmod2' returns wrong value");
+ res = 1;
+ }
+
+ /* And a test where a variable definition is intercepted. */
+ if (protvaritcpt == getvaritcpt1 ())
+ {
+ puts ("`protvaritcpt' in main and mod1 have same address");
+ res = 1;
+ }
+ if (protvaritcpt == getvaritcpt2 ())
+ {
+ puts ("`protvaritcpt' in main and mod2 have same address");
+ res = 1;
+ }
+ if (protvaritcpt != getvaritcpt3 ())
+ {
+ puts ("`protvaritcpt' in main and mod3 have not same address");
+ res = 1;
+ }
+ if (getvaritcpt1 () == getvaritcpt2 ())
+ {
+ puts ("`protvaritcpt' in mod1 and mod2 have same address");
+ res = 1;
+ }
+ if (strcmp (protvaritcpt, "vismod3.c") != 0)
+ {
+ puts ("`protvaritcpt in main has wrong value");
+ res = 1;
+ }
+ if (strcmp (getvaritcpt1 (), "vismod1.c") != 0)
+ {
+ puts ("`getvaritcpt1' returns wrong value");
+ res = 1;
+ }
+ if (strcmp (getvaritcpt2 (), "vismod2.c") != 0)
+ {
+ puts ("`getvaritcpt2' returns wrong value");
+ res = 1;
+ }
+
+ return res;
+}
+
+
+int
+protlocal (void)
+{
+ return 0x1;
+}
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