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- <td id="L2" class="blob-num js-line-number" data-line-number="2"></td>
- <td id="LC2" class="blob-code blob-code-inner js-file-line"># http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_cpuid.html</td>
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- <td id="LC4" class="blob-code blob-code-inner js-file-line">#</td>
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- <td id="L5" class="blob-num js-line-number" data-line-number="5"></td>
- <td id="LC5" class="blob-code blob-code-inner js-file-line"># SYNOPSIS</td>
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- <td id="LC6" class="blob-code blob-code-inner js-file-line">#</td>
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- <td id="L7" class="blob-num js-line-number" data-line-number="7"></td>
- <td id="LC7" class="blob-code blob-code-inner js-file-line"># AX_GCC_X86_CPUID(OP)</td>
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- <td id="L8" class="blob-num js-line-number" data-line-number="8"></td>
- <td id="LC8" class="blob-code blob-code-inner js-file-line"># AX_GCC_X86_CPUID_COUNT(OP, COUNT)</td>
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- <td id="L9" class="blob-num js-line-number" data-line-number="9"></td>
- <td id="LC9" class="blob-code blob-code-inner js-file-line">#</td>
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- <td id="L10" class="blob-num js-line-number" data-line-number="10"></td>
- <td id="LC10" class="blob-code blob-code-inner js-file-line"># DESCRIPTION</td>
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- <td id="L11" class="blob-num js-line-number" data-line-number="11"></td>
- <td id="LC11" class="blob-code blob-code-inner js-file-line">#</td>
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- <td id="L12" class="blob-num js-line-number" data-line-number="12"></td>
- <td id="LC12" class="blob-code blob-code-inner js-file-line"># On Pentium and later x86 processors, with gcc or a compiler that has a</td>
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- <td id="L13" class="blob-num js-line-number" data-line-number="13"></td>
- <td id="LC13" class="blob-code blob-code-inner js-file-line"># compatible syntax for inline assembly instructions, run a small program</td>
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- <td id="L14" class="blob-num js-line-number" data-line-number="14"></td>
- <td id="LC14" class="blob-code blob-code-inner js-file-line"># that executes the cpuid instruction with input OP. This can be used to</td>
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- <td id="L15" class="blob-num js-line-number" data-line-number="15"></td>
- <td id="LC15" class="blob-code blob-code-inner js-file-line"># detect the CPU type. AX_GCC_X86_CPUID_COUNT takes an additional COUNT</td>
- </tr>
- <tr>
- <td id="L16" class="blob-num js-line-number" data-line-number="16"></td>
- <td id="LC16" class="blob-code blob-code-inner js-file-line"># parameter that gets passed into register ECX before calling cpuid.</td>
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- <tr>
- <td id="L17" class="blob-num js-line-number" data-line-number="17"></td>
- <td id="LC17" class="blob-code blob-code-inner js-file-line">#</td>
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- <tr>
- <td id="L18" class="blob-num js-line-number" data-line-number="18"></td>
- <td id="LC18" class="blob-code blob-code-inner js-file-line"># On output, the values of the eax, ebx, ecx, and edx registers are stored</td>
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- <tr>
- <td id="L19" class="blob-num js-line-number" data-line-number="19"></td>
- <td id="LC19" class="blob-code blob-code-inner js-file-line"># as hexadecimal strings as "eax:ebx:ecx:edx" in the cache variable</td>
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- <tr>
- <td id="L20" class="blob-num js-line-number" data-line-number="20"></td>
- <td id="LC20" class="blob-code blob-code-inner js-file-line"># ax_cv_gcc_x86_cpuid_OP.</td>
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- <td id="L21" class="blob-num js-line-number" data-line-number="21"></td>
- <td id="LC21" class="blob-code blob-code-inner js-file-line">#</td>
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- <tr>
- <td id="L22" class="blob-num js-line-number" data-line-number="22"></td>
- <td id="LC22" class="blob-code blob-code-inner js-file-line"># If the cpuid instruction fails (because you are running a</td>
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- <tr>
- <td id="L23" class="blob-num js-line-number" data-line-number="23"></td>
- <td id="LC23" class="blob-code blob-code-inner js-file-line"># cross-compiler, or because you are not using gcc, or because you are on</td>
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- <tr>
- <td id="L24" class="blob-num js-line-number" data-line-number="24"></td>
- <td id="LC24" class="blob-code blob-code-inner js-file-line"># a processor that doesn't have this instruction), ax_cv_gcc_x86_cpuid_OP</td>
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- <tr>
- <td id="L25" class="blob-num js-line-number" data-line-number="25"></td>
- <td id="LC25" class="blob-code blob-code-inner js-file-line"># is set to the string "unknown".</td>
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- <td id="L26" class="blob-num js-line-number" data-line-number="26"></td>
- <td id="LC26" class="blob-code blob-code-inner js-file-line">#</td>
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- <tr>
- <td id="L27" class="blob-num js-line-number" data-line-number="27"></td>
- <td id="LC27" class="blob-code blob-code-inner js-file-line"># This macro mainly exists to be used in AX_GCC_ARCHFLAG.</td>
- </tr>
- <tr>
- <td id="L28" class="blob-num js-line-number" data-line-number="28"></td>
- <td id="LC28" class="blob-code blob-code-inner js-file-line">#</td>
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- <td id="LC29" class="blob-code blob-code-inner js-file-line"># LICENSE</td>
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- <td id="LC30" class="blob-code blob-code-inner js-file-line">#</td>
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- <td id="L31" class="blob-num js-line-number" data-line-number="31"></td>
- <td id="LC31" class="blob-code blob-code-inner js-file-line"># Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu></td>
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- <td id="LC32" class="blob-code blob-code-inner js-file-line"># Copyright (c) 2008 Matteo Frigo</td>
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- <td id="LC33" class="blob-code blob-code-inner js-file-line"># Copyright (c) 2015 Michael Petch <mpetch@capp-sysware.com></td>
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- <td id="LC34" class="blob-code blob-code-inner js-file-line">#</td>
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- <td id="LC35" class="blob-code blob-code-inner js-file-line"># This program is free software: you can redistribute it and/or modify it</td>
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- <td id="LC36" class="blob-code blob-code-inner js-file-line"># under the terms of the GNU General Public License as published by the</td>
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-</td>
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- <tr>
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- <td id="LC61" class="blob-code blob-code-inner js-file-line">#serial 8</td>
- </tr>
- <tr>
- <td id="L62" class="blob-num js-line-number" data-line-number="62"></td>
- <td id="LC62" class="blob-code blob-code-inner js-file-line">
-</td>
- </tr>
- <tr>
- <td id="L63" class="blob-num js-line-number" data-line-number="63"></td>
- <td id="LC63" class="blob-code blob-code-inner js-file-line">AC_DEFUN([AX_GCC_X86_CPUID],</td>
- </tr>
- <tr>
- <td id="L64" class="blob-num js-line-number" data-line-number="64"></td>
- <td id="LC64" class="blob-code blob-code-inner js-file-line">[AX_GCC_X86_CPUID_COUNT($1, 0)</td>
- </tr>
- <tr>
- <td id="L65" class="blob-num js-line-number" data-line-number="65"></td>
- <td id="LC65" class="blob-code blob-code-inner js-file-line">])</td>
- </tr>
- <tr>
- <td id="L66" class="blob-num js-line-number" data-line-number="66"></td>
- <td id="LC66" class="blob-code blob-code-inner js-file-line">
-</td>
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- <tr>
- <td id="L67" class="blob-num js-line-number" data-line-number="67"></td>
- <td id="LC67" class="blob-code blob-code-inner js-file-line">AC_DEFUN([AX_GCC_X86_CPUID_COUNT],</td>
- </tr>
- <tr>
- <td id="L68" class="blob-num js-line-number" data-line-number="68"></td>
- <td id="LC68" class="blob-code blob-code-inner js-file-line">[AC_REQUIRE([AC_PROG_CC])</td>
- </tr>
- <tr>
- <td id="L69" class="blob-num js-line-number" data-line-number="69"></td>
- <td id="LC69" class="blob-code blob-code-inner js-file-line">AC_LANG_PUSH([C])</td>
- </tr>
- <tr>
- <td id="L70" class="blob-num js-line-number" data-line-number="70"></td>
- <td id="LC70" class="blob-code blob-code-inner js-file-line">AC_CACHE_CHECK(for x86 cpuid $1 output, ax_cv_gcc_x86_cpuid_$1,</td>
- </tr>
- <tr>
- <td id="L71" class="blob-num js-line-number" data-line-number="71"></td>
- <td id="LC71" class="blob-code blob-code-inner js-file-line"> [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [</td>
- </tr>
- <tr>
- <td id="L72" class="blob-num js-line-number" data-line-number="72"></td>
- <td id="LC72" class="blob-code blob-code-inner js-file-line"> int op = $1, level = $2, eax, ebx, ecx, edx;</td>
- </tr>
- <tr>
- <td id="L73" class="blob-num js-line-number" data-line-number="73"></td>
- <td id="LC73" class="blob-code blob-code-inner js-file-line"> FILE *f;</td>
- </tr>
- <tr>
- <td id="L74" class="blob-num js-line-number" data-line-number="74"></td>
- <td id="LC74" class="blob-code blob-code-inner js-file-line"> __asm__ __volatile__ ("cpuid"</td>
- </tr>
- <tr>
- <td id="L75" class="blob-num js-line-number" data-line-number="75"></td>
- <td id="LC75" class="blob-code blob-code-inner js-file-line"> : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)</td>
- </tr>
- <tr>
- <td id="L76" class="blob-num js-line-number" data-line-number="76"></td>
- <td id="LC76" class="blob-code blob-code-inner js-file-line"> : "a" (op), "2" (level));</td>
- </tr>
- <tr>
- <td id="L77" class="blob-num js-line-number" data-line-number="77"></td>
- <td id="LC77" class="blob-code blob-code-inner js-file-line">
-</td>
- </tr>
- <tr>
- <td id="L78" class="blob-num js-line-number" data-line-number="78"></td>
- <td id="LC78" class="blob-code blob-code-inner js-file-line"> f = fopen("conftest_cpuid", "w"); if (!f) return 1;</td>
- </tr>
- <tr>
- <td id="L79" class="blob-num js-line-number" data-line-number="79"></td>
- <td id="LC79" class="blob-code blob-code-inner js-file-line"> fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx);</td>
- </tr>
- <tr>
- <td id="L80" class="blob-num js-line-number" data-line-number="80"></td>
- <td id="LC80" class="blob-code blob-code-inner js-file-line"> fclose(f);</td>
- </tr>
- <tr>
- <td id="L81" class="blob-num js-line-number" data-line-number="81"></td>
- <td id="LC81" class="blob-code blob-code-inner js-file-line"> return 0;</td>
- </tr>
- <tr>
- <td id="L82" class="blob-num js-line-number" data-line-number="82"></td>
- <td id="LC82" class="blob-code blob-code-inner js-file-line">])],</td>
- </tr>
- <tr>
- <td id="L83" class="blob-num js-line-number" data-line-number="83"></td>
- <td id="LC83" class="blob-code blob-code-inner js-file-line"> [ax_cv_gcc_x86_cpuid_$1=`cat conftest_cpuid`; rm -f conftest_cpuid],</td>
- </tr>
- <tr>
- <td id="L84" class="blob-num js-line-number" data-line-number="84"></td>
- <td id="LC84" class="blob-code blob-code-inner js-file-line"> [ax_cv_gcc_x86_cpuid_$1=unknown; rm -f conftest_cpuid],</td>
- </tr>
- <tr>
- <td id="L85" class="blob-num js-line-number" data-line-number="85"></td>
- <td id="LC85" class="blob-code blob-code-inner js-file-line"> [ax_cv_gcc_x86_cpuid_$1=unknown])])</td>
- </tr>
- <tr>
- <td id="L86" class="blob-num js-line-number" data-line-number="86"></td>
- <td id="LC86" class="blob-code blob-code-inner js-file-line">AC_LANG_POP([C])</td>
- </tr>
- <tr>
- <td id="L87" class="blob-num js-line-number" data-line-number="87"></td>
- <td id="LC87" class="blob-code blob-code-inner js-file-line">])</td>
- </tr>
-</table>
-
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-
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+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_cpuid.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_GCC_X86_CPUID(OP)
+# AX_GCC_X86_CPUID_COUNT(OP, COUNT)
+#
+# DESCRIPTION
+#
+# On Pentium and later x86 processors, with gcc or a compiler that has a
+# compatible syntax for inline assembly instructions, run a small program
+# that executes the cpuid instruction with input OP. This can be used to
+# detect the CPU type. AX_GCC_X86_CPUID_COUNT takes an additional COUNT
+# parameter that gets passed into register ECX before calling cpuid.
+#
+# On output, the values of the eax, ebx, ecx, and edx registers are stored
+# as hexadecimal strings as "eax:ebx:ecx:edx" in the cache variable
+# ax_cv_gcc_x86_cpuid_OP.
+#
+# If the cpuid instruction fails (because you are running a
+# cross-compiler, or because you are not using gcc, or because you are on
+# a processor that doesn't have this instruction), ax_cv_gcc_x86_cpuid_OP
+# is set to the string "unknown".
+#
+# This macro mainly exists to be used in AX_GCC_ARCHFLAG.
+#
+# LICENSE
+#
+# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
+# Copyright (c) 2008 Matteo Frigo
+# Copyright (c) 2015 Michael Petch <mpetch@capp-sysware.com>
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 8
+
+AC_DEFUN([AX_GCC_X86_CPUID],
+[AX_GCC_X86_CPUID_COUNT($1, 0)
+])
+
+AC_DEFUN([AX_GCC_X86_CPUID_COUNT],
+[AC_REQUIRE([AC_PROG_CC])
+AC_LANG_PUSH([C])
+AC_CACHE_CHECK(for x86 cpuid $1 output, ax_cv_gcc_x86_cpuid_$1,
+ [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [
+ int op = $1, level = $2, eax, ebx, ecx, edx;
+ FILE *f;
+ __asm__ __volatile__ ("cpuid"
+ : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
+ : "a" (op), "2" (level));
+
+ f = fopen("conftest_cpuid", "w"); if (!f) return 1;
+ fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx);
+ fclose(f);
+ return 0;
+])],
+ [ax_cv_gcc_x86_cpuid_$1=`cat conftest_cpuid`; rm -f conftest_cpuid],
+ [ax_cv_gcc_x86_cpuid_$1=unknown; rm -f conftest_cpuid],
+ [ax_cv_gcc_x86_cpuid_$1=unknown])])
+AC_LANG_POP([C])
+])
projects / imagemagick / commitdiff