/* Verify that changing AVX 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 __AVX__

#include <immintrin.h>

#include <cpuid.h>

static int avx = -1;

static inline int

__attribute ((always_inline))

check_avx (void)

{

  if (avx == -1)

    {

      unsigned int eax, ebx, ecx, edx;

      if (__get_cpuid (1, &eax, &ebx, &ecx, &edx)

	  && (ecx & bit_AVX))

	avx = 1;

      else

	avx = 0;

    }

  return avx;

}

#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 __AVX__

  if (check_avx () && strcmp (symname, "audit_test") == 0)

    {

      __m256i zero = _mm256_setzero_si256 ();

      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].ymm[0]

	  = (La_x86_64_ymm) _mm256_set1_epi32 (i + 1);

      __m256i ymm = _mm256_set1_epi32 (-1);

      asm volatile ("vmovdqa %0, %%ymm0" : : "x" (ymm) : "xmm0" );

      asm volatile ("vmovdqa %0, %%ymm1" : : "x" (ymm) : "xmm1" );

      asm volatile ("vmovdqa %0, %%ymm2" : : "x" (ymm) : "xmm2" );

      asm volatile ("vmovdqa %0, %%ymm3" : : "x" (ymm) : "xmm3" );

      asm volatile ("vmovdqa %0, %%ymm4" : : "x" (ymm) : "xmm4" );

      asm volatile ("vmovdqa %0, %%ymm5" : : "x" (ymm) : "xmm5" );

      asm volatile ("vmovdqa %0, %%ymm6" : : "x" (ymm) : "xmm6" );

      asm volatile ("vmovdqa %0, %%ymm7" : : "x" (ymm) : "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 __AVX__

  if (check_avx () && strcmp (symname, "audit_test") == 0)

    {

      __m256i zero = _mm256_setzero_si256 ();

      if (memcmp (&outregs->lrv_vector0, &zero, sizeof (zero)))

	abort ();

      for (int i = 0; i < 8; i++)

	{

	  __m256i ymm = _mm256_set1_epi32 (i + 1);

	  if (memcmp (&inregs->lr_vector[i], &ymm, sizeof (ymm)) != 0)

	    abort ();

	}

      outregs->lrv_vector0.ymm[0]

	= (La_x86_64_ymm) _mm256_set1_epi32 (0x12349876);

      __m256i ymm = _mm256_set1_epi32 (-1);

      asm volatile ("vmovdqa %0, %%ymm0" : : "x" (ymm) : "xmm0" );

      asm volatile ("vmovdqa %0, %%ymm1" : : "x" (ymm) : "xmm1" );

    }

#endif

  return 0;

}