From 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 Mon Sep 17 00:00:00 2001 From: Zack Weinberg Date: Thu, 8 Jun 2017 15:39:03 -0400 Subject: Prepare for radical source tree reorganization. All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control). --- REORG.TODO/sysdeps/x86_64/tst-auditmod6b.c | 227 +++++++++++++++++++++++++++++ 1 file changed, 227 insertions(+) create mode 100644 REORG.TODO/sysdeps/x86_64/tst-auditmod6b.c (limited to 'REORG.TODO/sysdeps/x86_64/tst-auditmod6b.c') diff --git a/REORG.TODO/sysdeps/x86_64/tst-auditmod6b.c b/REORG.TODO/sysdeps/x86_64/tst-auditmod6b.c new file mode 100644 index 0000000000..3533602c07 --- /dev/null +++ b/REORG.TODO/sysdeps/x86_64/tst-auditmod6b.c @@ -0,0 +1,227 @@ +/* Verify that changing AVX registers in audit library won't affect + function parameter passing/return. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +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 + +#ifdef __AVX__ +#include +#include + +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 +#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) + { + int i; + + __m128i xmm = _mm_setzero_si128 (); + for (i = 0; i < 8; i++) + if (memcmp (®s->lr_xmm[i], &xmm, sizeof (xmm)) + || memcmp (®s->lr_vector[i], &xmm, sizeof (xmm))) + abort (); + + for (i = 0; i < 8; i += 2) + { + regs->lr_xmm[i] = (La_x86_64_xmm) _mm_set1_epi32 (i + 1); + regs->lr_vector[i].xmm[0] = regs->lr_xmm[i]; + regs->lr_vector[i + 1].ymm[0] + = (La_x86_64_ymm) _mm256_set1_epi32 (i + 2); + regs->lr_xmm[i + 1] = regs->lr_vector[i + 1].xmm[0]; + } + + __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) + { + int i; + + __m128i xmm = _mm_setzero_si128 (); + if (memcmp (&outregs->lrv_xmm0, &xmm, sizeof (xmm)) + || memcmp (&outregs->lrv_vector0, &xmm, sizeof (xmm))) + abort (); + + __m256i ymm; + + for (i = 0; i < 8; i += 2) + { + xmm = _mm_set1_epi32 (i + 0x100); + if (memcmp (&inregs->lr_xmm[i], &xmm, sizeof (xmm)) + || memcmp (&inregs->lr_vector[i], &xmm, sizeof (xmm))) + abort (); + + ymm = _mm256_set1_epi32 (i + 0x101); + if (memcmp (&inregs->lr_xmm[i + 1], + &inregs->lr_vector[i + 1].xmm[0], sizeof (xmm)) + || memcmp (&inregs->lr_vector[i + 1], &ymm, sizeof (ymm))) + abort (); + } + + outregs->lrv_vector0.ymm[0] + = (La_x86_64_ymm) _mm256_set1_epi32 (0x12349876); + + ymm = _mm256_set1_epi32 (-1); + asm volatile ("vmovdqa %0, %%ymm0" : : "x" (ymm) : "xmm0" ); + asm volatile ("vmovdqa %0, %%ymm1" : : "x" (ymm) : "xmm1" ); + } +#endif + + return 0; +} -- cgit 1.4.1