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/* Verify that changing xmm 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>
#include <emmintrin.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>
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);
__m128i minusone = _mm_set1_epi32 (-1);
if (strcmp (symname, "audit_test") == 0)
{
__m128i zero = _mm_setzero_si128 ();
if (memcmp (®s->lr_xmm[0], &zero, sizeof (zero))
|| memcmp (®s->lr_xmm[1], &zero, sizeof (zero))
|| memcmp (®s->lr_xmm[2], &zero, sizeof (zero))
|| memcmp (®s->lr_xmm[3], &zero, sizeof (zero))
|| memcmp (®s->lr_xmm[4], &zero, sizeof (zero))
|| memcmp (®s->lr_xmm[5], &zero, sizeof (zero))
|| memcmp (®s->lr_xmm[6], &zero, sizeof (zero))
|| memcmp (®s->lr_xmm[7], &zero, sizeof (zero)))
abort ();
for (int i = 0; i < 8; i++)
regs->lr_xmm[i] = (La_x86_64_xmm) _mm_set1_epi32 (i + 1);
*framesizep = 1024;
}
asm volatile ("movdqa %0, %%xmm0" : : "x" (minusone) : "xmm0" );
asm volatile ("movdqa %0, %%xmm1" : : "x" (minusone) : "xmm1" );
asm volatile ("movdqa %0, %%xmm2" : : "x" (minusone) : "xmm2" );
asm volatile ("movdqa %0, %%xmm3" : : "x" (minusone) : "xmm3" );
asm volatile ("movdqa %0, %%xmm4" : : "x" (minusone) : "xmm4" );
asm volatile ("movdqa %0, %%xmm5" : : "x" (minusone) : "xmm5" );
asm volatile ("movdqa %0, %%xmm6" : : "x" (minusone) : "xmm6" );
asm volatile ("movdqa %0, %%xmm7" : : "x" (minusone) : "xmm7" );
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);
__m128i xmm;
if (strcmp (symname, "audit_test") == 0)
{
__m128i zero = _mm_setzero_si128 ();
if (memcmp (&outregs->lrv_xmm0, &zero, sizeof (zero)))
abort ();
for (int i = 0; i < 8; i++)
{
xmm = _mm_set1_epi32 (i + 1);
if (memcmp (&inregs->lr_xmm[i], &xmm, sizeof (xmm)) != 0)
abort ();
}
outregs->lrv_xmm0 = (La_x86_64_xmm) _mm_set1_epi32 (0x12349876);
}
xmm = _mm_set1_epi32 (-1);
asm volatile ("movdqa %0, %%xmm0" : : "x" (xmm) : "xmm0" );
asm volatile ("movdqa %0, %%xmm1" : : "x" (xmm) : "xmm1" );
return 0;
}
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