106 lines
3.6 KiB
C
106 lines
3.6 KiB
C
/* AMD64 calling conventions checking.
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Copyright 2000, 2001, 2004 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "tests.h"
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/* temporaries */
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long calling_conventions_save_rbx;
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long calling_conventions_save_rbp;
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long calling_conventions_save_r12;
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long calling_conventions_save_r13;
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long calling_conventions_save_r14;
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long calling_conventions_save_r15;
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long calling_conventions_retaddr;
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long calling_conventions_retval;
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/* values to check */
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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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long calling_conventions_rbx;
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long calling_conventions_rbp;
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long calling_conventions_r12;
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long calling_conventions_r13;
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long calling_conventions_r14;
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long calling_conventions_r15;
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long calling_conventions_rflags;
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/* expected values, as per amd64call.asm */
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const long calling_conventions_want_rbx = 0x1234567887654321L;
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const long calling_conventions_want_rbp = 0x89ABCDEFFEDCBA98L;
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const long calling_conventions_want_r12 = 0xDEADBEEFBADECAFEL;
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const long calling_conventions_want_r13 = 0xFFEEDDCCBBAA9988L;
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const long calling_conventions_want_r14 = 0x0011223344556677L;
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const long calling_conventions_want_r15 = 0x1234432156788765L;
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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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#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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CHECK (calling_conventions_rbx, "rbx", calling_conventions_want_rbx);
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CHECK (calling_conventions_rbp, "rbp", calling_conventions_want_rbp);
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CHECK (calling_conventions_r12, "r12", calling_conventions_want_r12);
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CHECK (calling_conventions_r13, "r13", calling_conventions_want_r13);
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CHECK (calling_conventions_r14, "r14", calling_conventions_want_r14);
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CHECK (calling_conventions_r15, "r15", calling_conventions_want_r15);
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if (DIR_BIT (calling_conventions_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_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%lX 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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