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/* Verify that changing xmm registers in audit library won't affect
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function parameter passing/return. */
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#include <dlfcn.h>
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#include <link.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <bits/wordsize.h>
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#include <gnu/lib-names.h>
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#include <emmintrin.h>
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unsigned int
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la_version (unsigned int v)
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{
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setlinebuf (stdout);
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printf ("version: %u\n", v);
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char buf[20];
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sprintf (buf, "%u", v);
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return v;
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}
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void
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la_activity (uintptr_t *cookie, unsigned int flag)
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{
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if (flag == LA_ACT_CONSISTENT)
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printf ("activity: consistent\n");
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else if (flag == LA_ACT_ADD)
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printf ("activity: add\n");
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else if (flag == LA_ACT_DELETE)
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printf ("activity: delete\n");
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else
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printf ("activity: unknown activity %u\n", flag);
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}
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char *
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la_objsearch (const char *name, uintptr_t *cookie, unsigned int flag)
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{
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char buf[100];
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const char *flagstr;
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if (flag == LA_SER_ORIG)
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flagstr = "LA_SET_ORIG";
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else if (flag == LA_SER_LIBPATH)
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flagstr = "LA_SER_LIBPATH";
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else if (flag == LA_SER_RUNPATH)
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flagstr = "LA_SER_RUNPATH";
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else if (flag == LA_SER_CONFIG)
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flagstr = "LA_SER_CONFIG";
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else if (flag == LA_SER_DEFAULT)
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flagstr = "LA_SER_DEFAULT";
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else if (flag == LA_SER_SECURE)
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flagstr = "LA_SER_SECURE";
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else
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{
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sprintf (buf, "unknown flag %d", flag);
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flagstr = buf;
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}
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printf ("objsearch: %s, %s\n", name, flagstr);
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return (char *) name;
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}
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unsigned int
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la_objopen (struct link_map *l, Lmid_t lmid, uintptr_t *cookie)
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{
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printf ("objopen: %ld, %s\n", lmid, l->l_name);
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return 3;
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}
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void
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la_preinit (uintptr_t *cookie)
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{
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printf ("preinit\n");
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}
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unsigned int
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la_objclose (uintptr_t *cookie)
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{
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printf ("objclose\n");
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return 0;
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}
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uintptr_t
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la_symbind32 (Elf32_Sym *sym, unsigned int ndx, uintptr_t *refcook,
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uintptr_t *defcook, unsigned int *flags, const char *symname)
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{
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printf ("symbind32: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
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symname, (long int) sym->st_value, ndx, *flags);
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return sym->st_value;
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}
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uintptr_t
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la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook,
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uintptr_t *defcook, unsigned int *flags, const char *symname)
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{
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printf ("symbind64: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
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symname, (long int) sym->st_value, ndx, *flags);
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return sym->st_value;
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}
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#include <tst-audit.h>
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ElfW(Addr)
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pltenter (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
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uintptr_t *defcook, La_regs *regs, unsigned int *flags,
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const char *symname, long int *framesizep)
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{
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printf ("pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
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symname, (long int) sym->st_value, ndx, *flags);
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__m128i minusone = _mm_set1_epi32 (-1);
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if (strcmp (symname, "audit_test") == 0)
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{
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__m128i zero = _mm_setzero_si128 ();
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if (memcmp (®s->lr_xmm[0], &zero, sizeof (zero))
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|| memcmp (®s->lr_xmm[1], &zero, sizeof (zero))
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|| memcmp (®s->lr_xmm[2], &zero, sizeof (zero))
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|| memcmp (®s->lr_xmm[3], &zero, sizeof (zero))
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|| memcmp (®s->lr_xmm[4], &zero, sizeof (zero))
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|| memcmp (®s->lr_xmm[5], &zero, sizeof (zero))
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|| memcmp (®s->lr_xmm[6], &zero, sizeof (zero))
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|| memcmp (®s->lr_xmm[7], &zero, sizeof (zero)))
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abort ();
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for (int i = 0; i < 8; i++)
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regs->lr_xmm[i] = (La_x86_64_xmm) _mm_set1_epi32 (i + 1);
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*framesizep = 1024;
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}
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asm volatile ("movdqa %0, %%xmm0" : : "x" (minusone) : "xmm0" );
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asm volatile ("movdqa %0, %%xmm1" : : "x" (minusone) : "xmm1" );
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asm volatile ("movdqa %0, %%xmm2" : : "x" (minusone) : "xmm2" );
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asm volatile ("movdqa %0, %%xmm3" : : "x" (minusone) : "xmm3" );
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asm volatile ("movdqa %0, %%xmm4" : : "x" (minusone) : "xmm4" );
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asm volatile ("movdqa %0, %%xmm5" : : "x" (minusone) : "xmm5" );
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asm volatile ("movdqa %0, %%xmm6" : : "x" (minusone) : "xmm6" );
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asm volatile ("movdqa %0, %%xmm7" : : "x" (minusone) : "xmm7" );
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return sym->st_value;
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}
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unsigned int
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pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
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uintptr_t *defcook, const La_regs *inregs, La_retval *outregs,
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const char *symname)
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{
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printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n",
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symname, (long int) sym->st_value, ndx,
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(ptrdiff_t) outregs->int_retval);
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__m128i xmm;
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if (strcmp (symname, "audit_test") == 0)
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{
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__m128i zero = _mm_setzero_si128 ();
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if (memcmp (&outregs->lrv_xmm0, &zero, sizeof (zero)))
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abort ();
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for (int i = 0; i < 8; i++)
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{
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xmm = _mm_set1_epi32 (i + 1);
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if (memcmp (&inregs->lr_xmm[i], &xmm, sizeof (xmm)) != 0)
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abort ();
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}
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outregs->lrv_xmm0 = (La_x86_64_xmm) _mm_set1_epi32 (0x12349876);
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}
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xmm = _mm_set1_epi32 (-1);
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asm volatile ("movdqa %0, %%xmm0" : : "x" (xmm) : "xmm0" );
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asm volatile ("movdqa %0, %%xmm1" : : "x" (xmm) : "xmm1" );
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return 0;
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}
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