[Mesa-dev] [Bug 67921] New: [bisected commit 883987] crosscompiling fails with util/u_cpu_detect.c:247:4: error: 'asm' undeclared (first use in this function)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67921

          Priority: medium
            Bug ID: 67921
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: [bisected commit 883987] crosscompiling fails with
                    util/u_cpu_detect.c:247:4: error: 'asm' undeclared
                    (first use in this function)
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: alexandre.f.demers at gmail.com
          Hardware: Other
            Status: NEW
           Version: git
         Component: Other
           Product: Mesa

Commit 883987503fc79691398eb024f37480ff083805a3 breaks crosscompilation when
building with the following:
baseExec="./autogen.sh --prefix=/usr \
        --enable-debug \
        --enable-osmesa \
        --enable-gbm \
        --enable-xvmc \
        --enable-vdpau \
        --enable-gles1 \
        --enable-gles2 \
        --enable-openvg \
        --enable-xorg \
        --enable-xa \
        --enable-egl \
        --enable-gallium-egl \
        --enable-glx-tls \
        --enable-texture-float \
        --enable-wgl \
        --with-gallium-drivers=r600,swrast,svga \
        --with-dri-drivers= \
        --with-egl-platforms=x11,drm,wayland"
    export CFLAGS='-m32'
    export CXXFLAGS='-m32'
    export LLVM_CONFIG='/usr/bin/llvm-config32'
    export PKG_CONFIG_PATH="/usr/lib/i386-linux-gnu/pkgconfig"
    Exec32="$baseExec --enable-32-bit --build=x86_64-pc-linux-gnu
--host=i686-pc-linux-gnu --libdir=/usr/lib/i386-linux-gnu
--includedir=/usr/include/i386-linux-gnu"
    $Exec32

---
It fails with:
  CC       util/u_cpu_detect.lo
util/u_cpu_detect.c: In function 'sse2_has_daz':
util/u_cpu_detect.c:247:4: error: 'asm' undeclared (first use in this function)
    asm volatile ("fxsave %0" :: "m" (fxarea));
    ^
util/u_cpu_detect.c:247:4: note: each undeclared identifier is reported only
once for each function it appears in
util/u_cpu_detect.c:247:8: error: expected ';' before 'volatile'
    asm volatile ("fxsave %0" :: "m" (fxarea));
        ^
make[3]: *** [util/u_cpu_detect.lo] Error 1

---
However, compiling normally for my 64bit architecture works fine.


Bad commit 883987503fc79691398eb024f37480ff083805a3
util: try much harder to set DAZ flag
Author
Roland Scheidegger<sroland at vmware.com>
Author date
8/5/13 9:30 PM

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