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6ae9836ed2
Add tests that the dynamic linker works correctly with symbol names involving hash collisions, for both choices of hash style (and --hash-style=both as well). I note that there weren't actually any previous tests using --hash-style (so tests would only cover the default linker configuration in that regard). Also test symbol versions involving hash collisions. Tested for x86_64.
197 lines
5.5 KiB
C
197 lines
5.5 KiB
C
/* Test ELF hash collisions.
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Copyright (C) 2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <support/check.h>
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/* Names with hash collisions for classic ELF hash. */
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extern int foo (void);
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extern int Hxxxynpfoo (void);
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extern int HxxxynpHxxxynpfoo (void);
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extern int HxxxynpHxxxynpHxxxynpfoo (void);
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extern int HxxxynpHxxxynpHxxxynpHxxxynpfoo (void);
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/* Names with hash collisions for GNU hash. */
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extern int bar (void);
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extern int gliinmbar (void);
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extern int gliinmgliinmbar (void);
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extern int gliinmgliinmgliinmbar (void);
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extern int gliinmgliinmgliinmgliinmbar (void);
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/* Classic ELF hash 0. */
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extern int Hxxxynp (void);
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extern int HxxxypP (void);
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extern int Hxxyinp (void);
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extern int HxxyipP (void);
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extern int HxxykNp (void);
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/* Classic ELF hash 1. */
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extern int Hxxxyoa (void);
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extern int HxxxypQ (void);
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extern int HxxxyqA (void);
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extern int HxxxzaA (void);
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extern int Hxxxz_a (void);
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/* Classic ELF hash 2. */
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extern int Hxxxyob (void);
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extern int HxxxypR (void);
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extern int HxxxyqB (void);
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extern int HxxxzaB (void);
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extern int Hxxxz_b (void);
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/* GNU hash 0. */
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extern int glidpk (void);
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extern int glidqJ (void);
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extern int glieOk (void);
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extern int gliePJ (void);
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extern int gljCpk (void);
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/* GNU hash 1. */
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extern int glidpl (void);
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extern int glidqK (void);
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extern int glieOl (void);
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extern int gliePK (void);
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extern int gljCpl (void);
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/* GNU hash 2. */
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extern int glidpm (void);
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extern int glidqL (void);
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extern int glieOm (void);
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extern int gliePL (void);
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extern int gljCpm (void);
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/* GNU hash 0x7ffffffe. */
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extern int AdfmZru (void);
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extern int AdfmZsT (void);
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extern int AdfmZt3 (void);
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extern int Adfn9ru (void);
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extern int Adfn9sT (void);
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/* GNU hash 0x7fffffff. */
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extern int AdfmZrv (void);
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extern int AdfmZsU (void);
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extern int AdfmZt4 (void);
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extern int Adfn9rv (void);
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extern int Adfn9sU (void);
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/* GNU hash 0x80000000. */
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extern int AdfmZrw (void);
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extern int AdfmZsV (void);
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extern int AdfmZt5 (void);
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extern int Adfn9rw (void);
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extern int Adfn9sV (void);
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/* GNU hash 0x80000001. */
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extern int AdfmZrx (void);
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extern int AdfmZsW (void);
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extern int AdfmZt6 (void);
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extern int Adfn9rx (void);
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extern int Adfn9sW (void);
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/* GNU hash 0xfffffffe. */
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extern int glidpi (void);
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extern int glidqH (void);
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extern int glieOi (void);
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extern int gliePH (void);
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extern int gljCpi (void);
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/* GNU hash 0xffffffff. */
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extern int glidpj (void);
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extern int glidqI (void);
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extern int glieOj (void);
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extern int gliePI (void);
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extern int gljCpj (void);
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int
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do_test (void)
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{
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TEST_COMPARE (foo (), 1);
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TEST_COMPARE (Hxxxynpfoo (), 2);
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TEST_COMPARE (HxxxynpHxxxynpfoo (), 3);
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TEST_COMPARE (HxxxynpHxxxynpHxxxynpfoo (), 4);
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TEST_COMPARE (HxxxynpHxxxynpHxxxynpHxxxynpfoo (), 5);
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TEST_COMPARE (gliinmgliinmgliinmgliinmbar (), 6);
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TEST_COMPARE (gliinmgliinmgliinmbar (), 7);
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TEST_COMPARE (gliinmgliinmbar (), 8);
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TEST_COMPARE (gliinmbar (), 9);
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TEST_COMPARE (bar (), 10);
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TEST_COMPARE (Hxxxynp (), 11);
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TEST_COMPARE (HxxxypP (), 12);
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TEST_COMPARE (Hxxyinp (), 13);
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TEST_COMPARE (HxxyipP (), 14);
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TEST_COMPARE (HxxykNp (), 15);
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TEST_COMPARE (Hxxxyoa (), 16);
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TEST_COMPARE (HxxxypQ (), 17);
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TEST_COMPARE (HxxxyqA (), 18);
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TEST_COMPARE (HxxxzaA (), 19);
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TEST_COMPARE (Hxxxz_a (), 20);
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TEST_COMPARE (Hxxxyob (), 21);
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TEST_COMPARE (HxxxypR (), 22);
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TEST_COMPARE (HxxxyqB (), 23);
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TEST_COMPARE (HxxxzaB (), 24);
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TEST_COMPARE (Hxxxz_b (), 25);
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TEST_COMPARE (glidpk (), 26);
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TEST_COMPARE (glidqJ (), 27);
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TEST_COMPARE (glieOk (), 28);
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TEST_COMPARE (gliePJ (), 29);
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TEST_COMPARE (gljCpk (), 30);
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TEST_COMPARE (glidpl (), 31);
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TEST_COMPARE (glidqK (), 32);
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TEST_COMPARE (glieOl (), 33);
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TEST_COMPARE (gliePK (), 34);
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TEST_COMPARE (gljCpl (), 35);
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TEST_COMPARE (glidpm (), 36);
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TEST_COMPARE (glidqL (), 37);
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TEST_COMPARE (glieOm (), 38);
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TEST_COMPARE (gliePL (), 39);
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TEST_COMPARE (gljCpm (), 40);
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TEST_COMPARE (AdfmZru (), 41);
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TEST_COMPARE (AdfmZsT (), 42);
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TEST_COMPARE (AdfmZt3 (), 43);
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TEST_COMPARE (Adfn9ru (), 44);
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TEST_COMPARE (Adfn9sT (), 45);
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TEST_COMPARE (AdfmZrv (), 46);
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TEST_COMPARE (AdfmZsU (), 47);
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TEST_COMPARE (AdfmZt4 (), 48);
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TEST_COMPARE (Adfn9rv (), 49);
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TEST_COMPARE (Adfn9sU (), 50);
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TEST_COMPARE (AdfmZrw (), 51);
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TEST_COMPARE (AdfmZsV (), 52);
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TEST_COMPARE (AdfmZt5 (), 53);
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TEST_COMPARE (Adfn9rw (), 54);
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TEST_COMPARE (Adfn9sV (), 55);
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TEST_COMPARE (AdfmZrx (), 56);
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TEST_COMPARE (AdfmZsW (), 57);
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TEST_COMPARE (AdfmZt6 (), 58);
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TEST_COMPARE (Adfn9rx (), 59);
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TEST_COMPARE (Adfn9sW (), 60);
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TEST_COMPARE (glidpi (), 61);
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TEST_COMPARE (glidqH (), 62);
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TEST_COMPARE (glieOi (), 63);
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TEST_COMPARE (gliePH (), 64);
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TEST_COMPARE (gljCpi (), 65);
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TEST_COMPARE (glidpj (), 66);
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TEST_COMPARE (glidqI (), 67);
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TEST_COMPARE (glieOj (), 68);
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TEST_COMPARE (gliePI (), 69);
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TEST_COMPARE (gljCpj (), 70);
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return 0;
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}
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#include <support/test-driver.c>
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