112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/* AMD64 calling conventions checking.
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Copyright 2000, 2001, 2004, 2007 Free Software Foundation, Inc.
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This file is part of the GNU MP Library test suite.
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The GNU MP Library test suite is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 3 of the License,
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or (at your option) any later version.
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The GNU MP Library test suite is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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Public License for more details.
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You should have received a copy of the GNU General Public License along with
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the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
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#include <stdio.h>
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#include "gmp-impl.h"
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#include "tests.h"
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/* Vector if constants and register values. We use one vector to allow access
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via a base pointer, very beneficial for the PIC-enabled amd64call.asm. */
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mp_limb_t calling_conventions_values[23] =
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{
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CNST_LIMB(0x1234567887654321), /* want_rbx */
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CNST_LIMB(0x89ABCDEFFEDCBA98), /* want_rbp */
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CNST_LIMB(0xDEADBEEFBADECAFE), /* want_r12 */
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CNST_LIMB(0xFFEEDDCCBBAA9988), /* want_r13 */
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CNST_LIMB(0x0011223344556677), /* want_r14 */
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CNST_LIMB(0x1234432156788765), /* want_r15 */
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CNST_LIMB(0xFEEDABBACAAFBEED), /* JUNK_RAX */
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CNST_LIMB(0xAB78DE89FF5125BB), /* JUNK_R10 */
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CNST_LIMB(0x1238901890189031) /* JUNK_R11 */
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/* rest of array used for dynamic values. */
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};
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/* Index starts for various regions in above vector. */
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#define WANT 0
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#define JUNK 6
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#define SAVE 9
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#define RETADDR 15
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#define VAL 16
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#define RFLAGS 22
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/* values to check */
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct {
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int control;
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int status;
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int tag;
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int other[4];
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} calling_conventions_fenv;
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#ifdef __cplusplus
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}
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#endif
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const char *regname[6] = {"rbx", "rbp", "r12", "r13", "r14", "r15"};
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#define DIR_BIT(rflags) (((rflags) & (1<<10)) != 0)
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/* Return 1 if ok, 0 if not */
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int
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calling_conventions_check (void)
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{
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const char *header = "Violated calling conventions:\n";
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int ret = 1;
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int i;
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#define CHECK(callreg, regstr, value) \
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if (callreg != value) \
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{ \
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printf ("%s %s got 0x%016lX want 0x%016lX\n", \
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header, regstr, callreg, value); \
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header = ""; \
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ret = 0; \
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}
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for (i = 0; i < 6; i++)
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{
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CHECK (calling_conventions_values[VAL+i], regname[i], calling_conventions_values[WANT+i]);
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}
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if (DIR_BIT (calling_conventions_values[RFLAGS]) != 0)
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{
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printf ("%s rflags dir bit got %d want 0\n",
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header, DIR_BIT (calling_conventions_values[RFLAGS]));
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header = "";
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ret = 0;
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}
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if ((calling_conventions_fenv.tag & 0xFFFF) != 0xFFFF)
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{
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printf ("%s fpu tags got 0x%X want 0xFFFF\n",
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header, calling_conventions_fenv.tag & 0xFFFF);
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header = "";
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ret = 0;
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}
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return ret;
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}
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