mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-31 22:10:34 +03:00
9faf5262c7
This is for bug 23293 and it relies on the glibc test system running tests via explicit ld.so invokation by default. Reviewed-by: Florian Weimer <fweimer@redhat.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/* Basic test for getauxval.
|
|
Copyright (C) 2022 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <support/check.h>
|
|
#include <sys/auxv.h>
|
|
|
|
static int missing;
|
|
static int mismatch;
|
|
|
|
static void
|
|
check_nonzero (unsigned long t, const char *s)
|
|
{
|
|
unsigned long v = getauxval (t);
|
|
printf ("%s: %lu (0x%lx)\n", s, v, v);
|
|
if (v == 0)
|
|
missing++;
|
|
}
|
|
|
|
static void
|
|
check_eq (unsigned long t, const char *s, unsigned long want)
|
|
{
|
|
unsigned long v = getauxval (t);
|
|
printf ("%s: %lu want: %lu\n", s, v, want);
|
|
if (v != want)
|
|
mismatch++;
|
|
}
|
|
|
|
#define NZ(x) check_nonzero (x, #x)
|
|
#define EQ(x, want) check_eq (x, #x, want)
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
/* These auxv entries should be non-zero on Linux. */
|
|
NZ (AT_PHDR);
|
|
NZ (AT_PHENT);
|
|
NZ (AT_PHNUM);
|
|
NZ (AT_PAGESZ);
|
|
NZ (AT_ENTRY);
|
|
NZ (AT_CLKTCK);
|
|
NZ (AT_RANDOM);
|
|
NZ (AT_EXECFN);
|
|
if (missing)
|
|
FAIL_EXIT1 ("Found %d missing auxv entries.\n", missing);
|
|
|
|
/* Check against syscalls. */
|
|
EQ (AT_UID, getuid ());
|
|
EQ (AT_EUID, geteuid ());
|
|
EQ (AT_GID, getgid ());
|
|
EQ (AT_EGID, getegid ());
|
|
if (mismatch)
|
|
FAIL_EXIT1 ("Found %d mismatching auxv entries.\n", mismatch);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|