binutils-gdb/ld/testsuite/ld-elf/pr26590c.c

#include <stdio.h>

extern int select ();
extern int f2 (int);

int main (void)
{
  if (select () == 0 && f2 (0) == 22222)
    printf ("PASS\n");
  return 0;
}
ld: Add more tests for --as-needed Prior to commit 1e3b96fd6cf0c7d018083994ad951ccf92aba582 Author: Alan Modra <amodra@gmail.com> Date: Fri Sep 4 13:54:21 2020 +0930 Allow plugin syms to mark as-needed shared libs needed when removing unused IR symbol references, ld didn't add unnecessary DT_NEEDED libraries which may lead to undefined symbol reference in a --as-needed library when the symbol is defined in a prior --as-needed library and there is no reference in relocatable inputs. This behavior is desirable since it ensures that both lazy and non-lazy bindings work the same way. The problem is with --as-needed libraries, which happens with and without LTO. Now, the linker may add many unnecessary DT_NEEDED libraries for IR inputs. PR ld/26590 * testsuite/ld-elf/pr26590.err: New file. * testsuite/ld-elf/pr26590a.c: Likewise. * testsuite/ld-elf/pr26590b.c: Likewise. * testsuite/ld-elf/pr26590c.c: Likewise. * testsuite/ld-elf/pr26590d.c: Likewise. * testsuite/ld-elf/shared.exp: Run ld/26590 tests. 2020-09-10 22:52:03 +08:00			`#include <stdio.h>`

			`extern int select ();`
			`extern int f2 (int);`

			`int main (void)`
			`{`
			`if (select () == 0 && f2 (0) == 22222)`
			`printf ("PASS\n");`
			`return 0;`
			`}`