| /* Copyright (C) 2012-2018 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 <link.h> |
| #include <stddef.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 (®s->lr_vector[0], &zero, sizeof (zero)) |
| || memcmp (®s->lr_vector[1], &zero, sizeof (zero)) |
| || memcmp (®s->lr_vector[2], &zero, sizeof (zero)) |
| || memcmp (®s->lr_vector[3], &zero, sizeof (zero)) |
| || memcmp (®s->lr_vector[4], &zero, sizeof (zero)) |
| || memcmp (®s->lr_vector[5], &zero, sizeof (zero)) |
| || memcmp (®s->lr_vector[6], &zero, sizeof (zero)) |
| || memcmp (®s->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; |
| } |