glibc/sysdeps/x86_64/tst-auditmod10b.c

230 lines
6.2 KiB
C

/* Copyright (C) 2012-2017 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
<http://www.gnu.org/licenses/>. */
/* Verify that changing AVX512 registers in audit library won't affect
function parameter passing/return. */
#include <dlfcn.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <bits/wordsize.h>
#include <gnu/lib-names.h>
unsigned int
la_version (unsigned int v)
{
setlinebuf (stdout);
printf ("version: %u\n", v);
char buf[20];
sprintf (buf, "%u", v);
return v;
}
void
la_activity (uintptr_t *cookie, unsigned int flag)
{
if (flag == LA_ACT_CONSISTENT)
printf ("activity: consistent\n");
else if (flag == LA_ACT_ADD)
printf ("activity: add\n");
else if (flag == LA_ACT_DELETE)
printf ("activity: delete\n");
else
printf ("activity: unknown activity %u\n", flag);
}
char *
la_objsearch (const char *name, uintptr_t *cookie, unsigned int flag)
{
char buf[100];
const char *flagstr;
if (flag == LA_SER_ORIG)
flagstr = "LA_SET_ORIG";
else if (flag == LA_SER_LIBPATH)
flagstr = "LA_SER_LIBPATH";
else if (flag == LA_SER_RUNPATH)
flagstr = "LA_SER_RUNPATH";
else if (flag == LA_SER_CONFIG)
flagstr = "LA_SER_CONFIG";
else if (flag == LA_SER_DEFAULT)
flagstr = "LA_SER_DEFAULT";
else if (flag == LA_SER_SECURE)
flagstr = "LA_SER_SECURE";
else
{
sprintf (buf, "unknown flag %d", flag);
flagstr = buf;
}
printf ("objsearch: %s, %s\n", name, flagstr);
return (char *) name;
}
unsigned int
la_objopen (struct link_map *l, Lmid_t lmid, uintptr_t *cookie)
{
printf ("objopen: %ld, %s\n", lmid, l->l_name);
return 3;
}
void
la_preinit (uintptr_t *cookie)
{
printf ("preinit\n");
}
unsigned int
la_objclose (uintptr_t *cookie)
{
printf ("objclose\n");
return 0;
}
uintptr_t
la_symbind32 (Elf32_Sym *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, unsigned int *flags, const char *symname)
{
printf ("symbind32: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
symname, (long int) sym->st_value, ndx, *flags);
return sym->st_value;
}
uintptr_t
la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, unsigned int *flags, const char *symname)
{
printf ("symbind64: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
symname, (long int) sym->st_value, ndx, *flags);
return sym->st_value;
}
#include <tst-audit.h>
#ifdef __AVX512F__
#include <immintrin.h>
#include <cpuid.h>
static int
check_avx512 (void)
{
unsigned int eax, ebx, ecx, edx;
if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0
|| (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE))
return 0;
__cpuid_count (7, 0, eax, ebx, ecx, edx);
if (!(ebx & bit_AVX512F))
return 0;
asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0));
/* Verify that ZMM, YMM and XMM states are enabled. */
return (eax & 0xe6) == 0xe6;
}
#else
#include <emmintrin.h>
#endif
ElfW(Addr)
pltenter (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, La_regs *regs, unsigned int *flags,
const char *symname, long int *framesizep)
{
printf ("pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
symname, (long int) sym->st_value, ndx, *flags);
#ifdef __AVX512F__
if (check_avx512 () && strcmp (symname, "audit_test") == 0)
{
__m512i zero = _mm512_setzero_si512 ();
if (memcmp (&regs->lr_vector[0], &zero, sizeof (zero))
|| memcmp (&regs->lr_vector[1], &zero, sizeof (zero))
|| memcmp (&regs->lr_vector[2], &zero, sizeof (zero))
|| memcmp (&regs->lr_vector[3], &zero, sizeof (zero))
|| memcmp (&regs->lr_vector[4], &zero, sizeof (zero))
|| memcmp (&regs->lr_vector[5], &zero, sizeof (zero))
|| memcmp (&regs->lr_vector[6], &zero, sizeof (zero))
|| memcmp (&regs->lr_vector[7], &zero, sizeof (zero)))
abort ();
for (int i = 0; i < 8; i++)
regs->lr_vector[i].zmm[0]
= (La_x86_64_zmm) _mm512_set1_epi64 (i + 1);
__m512i zmm = _mm512_set1_epi64 (-1);
asm volatile ("vmovdqa64 %0, %%zmm0" : : "x" (zmm) : "xmm0" );
asm volatile ("vmovdqa64 %0, %%zmm1" : : "x" (zmm) : "xmm1" );
asm volatile ("vmovdqa64 %0, %%zmm2" : : "x" (zmm) : "xmm2" );
asm volatile ("vmovdqa64 %0, %%zmm3" : : "x" (zmm) : "xmm3" );
asm volatile ("vmovdqa64 %0, %%zmm4" : : "x" (zmm) : "xmm4" );
asm volatile ("vmovdqa64 %0, %%zmm5" : : "x" (zmm) : "xmm5" );
asm volatile ("vmovdqa64 %0, %%zmm6" : : "x" (zmm) : "xmm6" );
asm volatile ("vmovdqa64 %0, %%zmm7" : : "x" (zmm) : "xmm7" );
*framesizep = 1024;
}
#endif
return sym->st_value;
}
unsigned int
pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, const La_regs *inregs, La_retval *outregs,
const char *symname)
{
printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n",
symname, (long int) sym->st_value, ndx,
(ptrdiff_t) outregs->int_retval);
#ifdef __AVX512F__
if (check_avx512 () && strcmp (symname, "audit_test") == 0)
{
__m512i zero = _mm512_setzero_si512 ();
if (memcmp (&outregs->lrv_vector0, &zero, sizeof (zero)))
abort ();
for (int i = 0; i < 8; i++)
{
__m512i zmm = _mm512_set1_epi64 (i + 1);
if (memcmp (&inregs->lr_vector[i], &zmm, sizeof (zmm)) != 0)
abort ();
}
outregs->lrv_vector0.zmm[0]
= (La_x86_64_zmm) _mm512_set1_epi64 (0x12349876);
__m512i zmm = _mm512_set1_epi64 (-1);
asm volatile ("vmovdqa64 %0, %%zmm0" : : "x" (zmm) : "xmm0" );
asm volatile ("vmovdqa64 %0, %%zmm1" : : "x" (zmm) : "xmm1" );
}
#endif
return 0;
}