diff options
Diffstat (limited to 'sysdeps/x86_64/tst-auditmod10b.c')
| -rw-r--r-- | sysdeps/x86_64/tst-auditmod10b.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/sysdeps/x86_64/tst-auditmod10b.c b/sysdeps/x86_64/tst-auditmod10b.c new file mode 100644 index 0000000000..358f50e3b0 --- /dev/null +++ b/sysdeps/x86_64/tst-auditmod10b.c @@ -0,0 +1,219 @@ +/* Copyright (C) 2012-2014 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_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; +} |