133 lines
2.2 KiB
C
133 lines
2.2 KiB
C
/* This is part of the shared library ld test. This file becomes part
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of a shared library. */
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/* This variable is supplied by the main program. */
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extern int mainvar;
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/* This variable is defined in the shared library, and overridden by
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the main program. */
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int overriddenvar = -1;
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/* This variable is defined in the shared library. */
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int shlibvar1 = 3;
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/* This variable is defined by another object in the shared library. */
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extern int shlibvar2;
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/* These functions return the values of the above variables as seen in
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the shared library. */
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int
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shlib_mainvar ()
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{
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return mainvar;
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}
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int
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shlib_overriddenvar ()
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{
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return overriddenvar;
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}
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int
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shlib_shlibvar1 ()
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{
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return shlibvar1;
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}
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int
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shlib_shlibvar2 ()
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{
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return shlibvar2;
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}
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/* This function calls a function defined by another object in the
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shared library. */
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extern int shlib_shlibcalled ();
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int
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shlib_shlibcall ()
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{
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return shlib_shlibcalled ();
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}
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/* This function calls a function defined by the main program. */
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extern int main_called ();
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int
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shlib_maincall ()
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{
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return main_called ();
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}
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/* This function is passed a function pointer to shlib_mainvar. It
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confirms that the pointer compares equally. */
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int
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shlib_checkfunptr1 (p)
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int (*p) ();
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{
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return p == shlib_mainvar;
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}
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/* This function is passed a function pointer to main_called. It
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confirms that the pointer compares equally. */
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int
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shlib_checkfunptr2 (p)
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int (*p) ();
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{
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return p == main_called;
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}
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/* This function returns a pointer to shlib_mainvar. */
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int
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(*shlib_getfunptr1 ()) ()
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{
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return shlib_mainvar;
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}
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/* This function returns a pointer to main_called. */
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int
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(*shlib_getfunptr2 ()) ()
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{
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return main_called;
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}
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/* This function makes sure that constant data and local functions
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work. */
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#ifndef __STDC__
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#define const
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#endif
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static int i = 6;
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static const char *str = "Hello, world\n";
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int
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shlib_check ()
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{
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const char *s1, *s2;
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if (i != 6)
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return 0;
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/* To isolate the test, don't rely on any external functions, such
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as strcmp. */
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s1 = "Hello, world\n";
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s2 = str;
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while (*s1 != '\0')
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if (*s1++ != *s2++)
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return 0;
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if (*s2 != '\0')
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return 0;
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if (shlib_shlibvar1 () != 3)
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return 0;
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return 1;
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}
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