412 lines
6.6 KiB
C
412 lines
6.6 KiB
C
|
#ifndef NULL
|
||
|
|
#define NULL ((void *) 0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* This is part of the shared library ld test. This file becomes part
|
||
|
|
of a shared library. */
|
||
|
|
|
||
|
|
/* This variable is supplied by the main program. */
|
||
|
|
extern int mainvar;
|
||
|
|
|
||
|
|
/* This variable is defined in the shared library, and overridden by
|
||
|
|
the main program. */
|
||
|
|
#ifndef XCOFF_TEST
|
||
|
|
#ifdef SHARED
|
||
|
|
/* SHARED is defined if we are compiling with -fpic/-fPIC. */
|
||
|
|
int overriddenvar = -1;
|
||
|
|
#else
|
||
|
|
/* Without -fpic, newer versions of gcc assume that we are not
|
||
|
|
compiling for a shared library, and thus that overriddenvar is
|
||
|
|
local. */
|
||
|
|
extern int overriddenvar;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* This variable is defined in the shared library. */
|
||
|
|
int shlibvar1 = 3;
|
||
|
|
|
||
|
|
/* This variable is defined by another object in the shared library. */
|
||
|
|
extern int shlibvar2;
|
||
|
|
|
||
|
|
/* These functions return the values of the above variables as seen in
|
||
|
|
the shared library. */
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_mainvar ()
|
||
|
|
{
|
||
|
|
return mainvar;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef XCOFF_TEST
|
||
|
|
int
|
||
|
|
shlib_overriddenvar ()
|
||
|
|
{
|
||
|
|
return overriddenvar;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_shlibvar1 ()
|
||
|
|
{
|
||
|
|
return shlibvar1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_shlibvar2 ()
|
||
|
|
{
|
||
|
|
return shlibvar2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This function calls a function defined by another object in the
|
||
|
|
shared library. */
|
||
|
|
|
||
|
|
extern int shlib_shlibcalled ();
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_shlibcall ()
|
||
|
|
{
|
||
|
|
return shlib_shlibcalled ();
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef XCOFF_TEST
|
||
|
|
/* This function calls a function defined in this object in the shared
|
||
|
|
library. The main program will override the called function. */
|
||
|
|
|
||
|
|
extern int shlib_overriddencall2 ();
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_shlibcall2 ()
|
||
|
|
{
|
||
|
|
return shlib_overriddencall2 ();
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef SHARED
|
||
|
|
int
|
||
|
|
shlib_overriddencall2 ()
|
||
|
|
{
|
||
|
|
return 7;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* This function calls a function defined by the main program. */
|
||
|
|
|
||
|
|
extern int main_called ();
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_maincall ()
|
||
|
|
{
|
||
|
|
return main_called ();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This function is passed a function pointer to shlib_mainvar. It
|
||
|
|
confirms that the pointer compares equally. */
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_checkfunptr1 (p)
|
||
|
|
int (*p) ();
|
||
|
|
{
|
||
|
|
return p == shlib_shlibvar1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This function is passed a function pointer to main_called. It
|
||
|
|
confirms that the pointer compares equally. */
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_checkfunptr2 (p)
|
||
|
|
int (*p) ();
|
||
|
|
{
|
||
|
|
return p == main_called;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This function returns a pointer to shlib_mainvar. */
|
||
|
|
|
||
|
|
int
|
||
|
|
(*shlib_getfunptr1 ()) ()
|
||
|
|
{
|
||
|
|
return shlib_shlibvar1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This function returns a pointer to main_called. */
|
||
|
|
|
||
|
|
int
|
||
|
|
(*shlib_getfunptr2 ()) ()
|
||
|
|
{
|
||
|
|
return main_called;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This function makes sure that constant data and local functions
|
||
|
|
work. */
|
||
|
|
|
||
|
|
#ifndef __STDC__
|
||
|
|
#define const
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int i = 6;
|
||
|
|
static const char *str = "Hello, world\n";
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_check ()
|
||
|
|
{
|
||
|
|
const char *s1, *s2;
|
||
|
|
|
||
|
|
if (i != 6)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
/* To isolate the test, don't rely on any external functions, such
|
||
|
|
as strcmp. */
|
||
|
|
s1 = "Hello, world\n";
|
||
|
|
s2 = str;
|
||
|
|
while (*s1 != '\0')
|
||
|
|
if (*s1++ != *s2++)
|
||
|
|
return 0;
|
||
|
|
if (*s2 != '\0')
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (shlib_shlibvar1 () != 3)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef HIDDEN_WEAK_TEST
|
||
|
|
#define HIDDEN_UNDEF_TEST
|
||
|
|
#define WEAK_TEST
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef PROTECTED_WEAK_TEST
|
||
|
|
#define PROTECTED_UNDEF_TEST
|
||
|
|
#define WEAK_TEST
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined (HIDDEN_UNDEF_TEST) || defined (PROTECTED_UNDEF_TEST)
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
#pragma weak visibility
|
||
|
|
#endif
|
||
|
|
extern int visibility ();
|
||
|
|
#else
|
||
|
|
int
|
||
|
|
visibility ()
|
||
|
|
{
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HIDDEN_NORMAL_TEST
|
||
|
|
__asm__ (".hidden visibility_normal");
|
||
|
|
|
||
|
|
int
|
||
|
|
visibility_normal ()
|
||
|
|
{
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int
|
||
|
|
visibility_checkfunptr ()
|
||
|
|
{
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
return 1;
|
||
|
|
#else
|
||
|
|
#ifdef HIDDEN_NORMAL_TEST
|
||
|
|
int (*v) () = visibility_normal;
|
||
|
|
#else
|
||
|
|
int (*v) () = visibility;
|
||
|
|
#endif
|
||
|
|
return (*v) () == 2;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
visibility_check ()
|
||
|
|
{
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
if (&visibility)
|
||
|
|
return visibility () == 1;
|
||
|
|
else
|
||
|
|
return 1;
|
||
|
|
#else
|
||
|
|
#ifdef HIDDEN_NORMAL_TEST
|
||
|
|
return visibility_normal () == 2;
|
||
|
|
#else
|
||
|
|
return visibility () == 2;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void *
|
||
|
|
visibility_funptr ()
|
||
|
|
{
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
if (&visibility == NULL)
|
||
|
|
return NULL;
|
||
|
|
else
|
||
|
|
#endif
|
||
|
|
return visibility;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined (HIDDEN_UNDEF_TEST) || defined (PROTECTED_UNDEF_TEST)
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
#pragma weak visibility_var
|
||
|
|
#endif
|
||
|
|
extern int visibility_var;
|
||
|
|
#else
|
||
|
|
int visibility_var = 2;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HIDDEN_NORMAL_TEST
|
||
|
|
__asm__ (".hidden visibility_var_normal");
|
||
|
|
|
||
|
|
int visibility_var_normal = 2;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int
|
||
|
|
visibility_checkvarptr ()
|
||
|
|
{
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
if (&visibility_var)
|
||
|
|
return visibility_var == 1;
|
||
|
|
else
|
||
|
|
return 1;
|
||
|
|
#else
|
||
|
|
#ifdef HIDDEN_NORMAL_TEST
|
||
|
|
int *v = &visibility_var_normal;
|
||
|
|
#else
|
||
|
|
int *v = &visibility_var;
|
||
|
|
#endif
|
||
|
|
return *v == 2;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
visibility_checkvar ()
|
||
|
|
{
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
return 1;
|
||
|
|
#else
|
||
|
|
#ifdef HIDDEN_NORMAL_TEST
|
||
|
|
return visibility_var_normal == 2;
|
||
|
|
#else
|
||
|
|
return visibility_var == 2;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void *
|
||
|
|
visibility_varptr ()
|
||
|
|
{
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
if (&visibility_var == NULL)
|
||
|
|
return NULL;
|
||
|
|
else
|
||
|
|
#endif
|
||
|
|
return &visibility_var;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
visibility_varval ()
|
||
|
|
{
|
||
|
|
#ifdef WEAK_TEST
|
||
|
|
if (&visibility_var == NULL)
|
||
|
|
return 0;
|
||
|
|
else
|
||
|
|
#endif
|
||
|
|
return visibility_var;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined (HIDDEN_TEST) || defined (HIDDEN_UNDEF_TEST)
|
||
|
|
__asm__ (".hidden visibility");
|
||
|
|
__asm__ (".hidden visibility_var");
|
||
|
|
#else
|
||
|
|
#if defined (PROTECTED_TEST) || defined (PROTECTED_UNDEF_TEST) || defined (PROTECTED_WEAK_TEST)
|
||
|
|
__asm__ (".protected visibility");
|
||
|
|
__asm__ (".protected visibility_var");
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HIDDEN_NORMAL_TEST
|
||
|
|
int shlib_visibility_com;
|
||
|
|
__asm__ (".hidden shlib_visibility_com");
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_visibility_checkcom ()
|
||
|
|
{
|
||
|
|
return shlib_visibility_com == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_visibility_checkweak ()
|
||
|
|
{
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
#elif defined (HIDDEN_WEAK_TEST)
|
||
|
|
#pragma weak shlib_visibility_undef_var_weak
|
||
|
|
extern int shlib_visibility_undef_var_weak;
|
||
|
|
__asm__ (".hidden shlib_visibility_undef_var_weak");
|
||
|
|
|
||
|
|
#pragma weak shlib_visibility_undef_func_weak
|
||
|
|
extern int shlib_visibility_undef_func_weak ();
|
||
|
|
__asm__ (".hidden shlib_visibility_undef_func_weak");
|
||
|
|
|
||
|
|
#pragma weak shlib_visibility_var_weak
|
||
|
|
extern int shlib_visibility_var_weak;
|
||
|
|
__asm__ (".hidden shlib_visibility_var_weak");
|
||
|
|
|
||
|
|
#pragma weak shlib_visibility_func_weak
|
||
|
|
extern int shlib_visibility_func_weak ();
|
||
|
|
__asm__ (".hidden shlib_visibility_func_weak");
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_visibility_checkcom ()
|
||
|
|
{
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_visibility_checkweak ()
|
||
|
|
{
|
||
|
|
return &shlib_visibility_undef_var_weak == NULL
|
||
|
|
&& &shlib_visibility_undef_func_weak == NULL
|
||
|
|
&& &shlib_visibility_func_weak == NULL
|
||
|
|
&& &shlib_visibility_var_weak == NULL;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
int
|
||
|
|
shlib_visibility_checkcom ()
|
||
|
|
{
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
shlib_visibility_checkweak ()
|
||
|
|
{
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef PROTECTED_TEST
|
||
|
|
#ifdef SHARED
|
||
|
|
int shared_data = 100;
|
||
|
|
#else
|
||
|
|
extern int shared_data;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int *
|
||
|
|
shared_data_p ()
|
||
|
|
{
|
||
|
|
return &shared_data;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
shared_func ()
|
||
|
|
{
|
||
|
|
return 100;
|
||
|
|
}
|
||
|
|
|
||
|
|
void *
|
||
|
|
shared_func_p ()
|
||
|
|
{
|
||
|
|
return shared_func;
|
||
|
|
}
|
||
|
|
#endif
|