From 484af2580b82dffd695fcd0841fc34a9dc5f7293 Mon Sep 17 00:00:00 2001
From: sezero <sezero@users.sourceforge.net>
Date: Sun, 6 Oct 2019 14:37:02 +0300
Subject: [PATCH] configure: adjust x86 get cpu info inline assembly method for
PIC case
.. just like the way it is done in celt/x86/x86cpu.c.
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
---
configure.ac | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/configure.ac b/configure.ac
index 18ece2913..f12f0aa9a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -691,6 +691,18 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[
unsigned int CPUInfo2;
unsigned int CPUInfo3;
unsigned int InfoType;
+ #if defined(__i386__) && defined(__PIC__)
+ __asm__ __volatile__ (
+ "xchg %%ebx, %1\n"
+ "cpuid\n"
+ "xchg %%ebx, %1\n":
+ "=a" (CPUInfo0),
+ "=r" (CPUInfo1),
+ "=c" (CPUInfo2),
+ "=d" (CPUInfo3) :
+ "a" (InfoType), "c" (0)
+ );
+ #else
__asm__ __volatile__ (
"cpuid":
"=a" (CPUInfo0),
@@ -699,6 +711,7 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[
"=d" (CPUInfo3) :
"a" (InfoType), "c" (0)
);
+ #endif
]])],
[get_cpuid_by_asm="yes"
AC_MSG_RESULT([Inline Assembly])
--
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