* gdb.arch/i386-sse.exp, gdb.arch/i386-sse.c: New tests.
* gdb.arch/i386-cpuid.h: New helper file.
This commit is contained in:
Jim Blandy
parent
822392cef5
commit
83ecb59f2d
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@ -1,3 +1,8 @@
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2004-06-07 Jim Blandy <jimb@redhat.com>
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* gdb.arch/i386-sse.exp, gdb.arch/i386-sse.c: New tests.
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* gdb.arch/i386-cpuid.h: New helper file.
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2004-06-07 Randolph Chung <tausq@debian.org>
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* gdb.base/shlib-call.exp: Allow breakpoint to be added after inferior
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@ -0,0 +1,77 @@
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/* Helper file for i386 platform. Runtime check for MMX/SSE/SSE2 support.
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Copyright 2004 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Used by 20020523-2.c and i386-sse-6.c, and possibly others. */
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/* Plagarized from 20020523-2.c. */
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/* Plagarized from gcc. */
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#define bit_CMOV (1 << 15)
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#define bit_MMX (1 << 23)
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#define bit_SSE (1 << 25)
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#define bit_SSE2 (1 << 26)
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#ifndef NOINLINE
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#define NOINLINE __attribute__ ((noinline))
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#endif
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unsigned int i386_cpuid (void) NOINLINE;
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unsigned int NOINLINE
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i386_cpuid (void)
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{
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int fl1, fl2;
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#ifndef __x86_64__
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/* See if we can use cpuid. On AMD64 we always can. */
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__asm__ ("pushfl; pushfl; popl %0; movl %0,%1; xorl %2,%0;"
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"pushl %0; popfl; pushfl; popl %0; popfl"
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: "=&r" (fl1), "=&r" (fl2)
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: "i" (0x00200000));
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if (((fl1 ^ fl2) & 0x00200000) == 0)
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return (0);
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#endif
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/* Host supports cpuid. See if cpuid gives capabilities, try
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CPUID(0). Preserve %ebx and %ecx; cpuid insn clobbers these, we
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don't need their CPUID values here, and %ebx may be the PIC
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register. */
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#ifdef __x86_64__
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__asm__ ("pushq %%rcx; pushq %%rbx; cpuid; popq %%rbx; popq %%rcx"
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: "=a" (fl1) : "0" (0) : "rdx", "cc");
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#else
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__asm__ ("pushl %%ecx; pushl %%ebx; cpuid; popl %%ebx; popl %%ecx"
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: "=a" (fl1) : "0" (0) : "edx", "cc");
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#endif
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if (fl1 == 0)
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return (0);
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/* Invoke CPUID(1), return %edx; caller can examine bits to
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determine what's supported. */
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#ifdef __x86_64__
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__asm__ ("pushq %%rcx; pushq %%rbx; cpuid; popq %%rbx; popq %%rcx"
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: "=d" (fl2), "=a" (fl1) : "1" (1) : "cc");
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#else
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__asm__ ("pushl %%ecx; pushl %%ebx; cpuid; popl %%ebx; popl %%ecx"
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: "=d" (fl2), "=a" (fl1) : "1" (1) : "cc");
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#endif
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return fl2;
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}
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@ -0,0 +1,90 @@
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/* Test program for SSE registers.
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Copyright 2004 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdio.h>
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#include "i386-cpuid.h"
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typedef struct {
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float f[4];
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} v4sf_t;
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v4sf_t data[8] =
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{
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{ { 0.0, 0.25, 0.50, 0.75 } },
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{ { 1.0, 1.25, 1.50, 1.75 } },
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{ { 2.0, 2.25, 2.50, 2.75 } },
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{ { 3.0, 3.25, 3.50, 3.75 } },
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{ { 4.0, 4.25, 4.50, 4.75 } },
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{ { 5.0, 5.25, 5.50, 5.75 } },
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{ { 6.0, 6.25, 6.50, 6.75 } },
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{ { 7.0, 7.25, 7.50, 7.75 } },
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};
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int
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have_sse (void)
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{
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int edx = i386_cpuid ();
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if (edx & bit_SSE)
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return 1;
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else
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return 0;
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}
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int
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main (int argc, char **argv)
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{
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if (have_sse ())
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{
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asm ("movaps 0(%0), %%xmm0\n\t"
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"movaps 16(%0), %%xmm1\n\t"
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"movaps 32(%0), %%xmm2\n\t"
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"movaps 48(%0), %%xmm3\n\t"
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"movaps 64(%0), %%xmm4\n\t"
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"movaps 80(%0), %%xmm5\n\t"
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"movaps 96(%0), %%xmm6\n\t"
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"movaps 112(%0), %%xmm7\n\t"
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: /* no output operands */
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: "r" (data)
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: "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
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puts ("Hi!"); /* first breakpoint here */
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asm (
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"movaps %%xmm0, 0(%0)\n\t"
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"movaps %%xmm1, 16(%0)\n\t"
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"movaps %%xmm2, 32(%0)\n\t"
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"movaps %%xmm3, 48(%0)\n\t"
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"movaps %%xmm4, 64(%0)\n\t"
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"movaps %%xmm5, 80(%0)\n\t"
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"movaps %%xmm6, 96(%0)\n\t"
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"movaps %%xmm7, 112(%0)\n\t"
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: /* no output operands */
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: "r" (data)
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: "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
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puts ("Bye!"); /* second breakpoint here */
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}
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return 0;
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}
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@ -0,0 +1,91 @@
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# Copyright 2004 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@gnu.org
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# This file is part of the gdb testsuite.
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if $tracelevel {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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if ![istarget "i?86-*-*"] then {
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verbose "Skipping i386 SSE tests."
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return
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}
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set testfile "i386-sse"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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if ![runto_main] then {
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gdb_suppress_tests
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}
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send_gdb "print have_sse ()\r"
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gdb_expect {
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-re ".. = 1\r\n$gdb_prompt " {
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pass "check whether processor supports SSE"
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}
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-re ".. = 0\r\n$gdb_prompt " {
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verbose "processor does not support SSE; skipping SSE tests"
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return
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}
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-re ".*$gdb_prompt $" {
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fail "check whether processor supports SSE"
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}
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timeout {
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fail "check whether processor supports SSE (timeout)"
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}
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}
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gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
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"Breakpoint .* at .*i386-sse.c.*" \
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"set breakpoint in main"
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gdb_continue_to_breakpoint "continue to first breakpoint in main"
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foreach r {0 1 2 3 4 5 6 7} {
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gdb_test "print \$xmm$r.v4_float" \
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".. = {$r, $r.25, $r.5, $r.75}.*" \
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"check contents of %xmm$r"
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}
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foreach r {0 1 2 3 4 5 6 7} {
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gdb_test "set var \$xmm$r.v4_float\[0\] = $r + 10" "" "set %xmm$r"
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}
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gdb_test "break [gdb_get_line_number "second breakpoint here"]" \
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"Breakpoint .* at .*i386-sse.c.*" \
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"set breakpoint in main"
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gdb_continue_to_breakpoint "continue to second breakpoint in main"
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foreach r {0 1 2 3 4 5 6 7} {
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gdb_test "print data\[$r\]" \
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".. = {f = {[expr $r + 10], $r.25, $r.5, $r.75}}.*" \
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"check contents of data\[$r\]"
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}
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