<div dir="ltr">I've filed a bug upstream about the failure on Debian 8: <a href="https://github.com/libexpat/libexpat/issues/97">https://github.com/libexpat/libexpat/issues/97</a><div><br></div><div>Defining <span style="color:rgb(80,0,80);font-size:12.800000190734863px">XML_POOR_ENTROPY will allow expat to fall back to weak entropy on hosts that don't have direct support for getrandom().</span></div><div><span style="color:rgb(80,0,80);font-size:12.800000190734863px"><br></span></div><div><span style="color:rgb(80,0,80);font-size:12.800000190734863px">Ross</span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 24 July 2017 at 11:20, Burton, Ross <span dir="ltr"><<a href="mailto:ross.burton@intel.com" target="_blank">ross.burton@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I didn't see that upgrade, but yes it will.<div><br></div><div>expat 2.2.2 demands either getrandom() from glibc (2.25 onwards) or SYS_getrandom (not sure what glibc added this, but its not in Debian 8's 2.19.</div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Ross</div></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On 22 July 2017 at 16:19, Khem Raj <span dir="ltr"><<a href="mailto:raj.khem@gmail.com" target="_blank">raj.khem@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>On Sat, Jul 22, 2017 at 2:24 AM, Burton, Ross <<a href="mailto:ross.burton@intel.com" target="_blank">ross.burton@intel.com</a>> wrote:<br>
><br>
> On 18 July 2017 at 07:01, Dengke Du <<a href="mailto:dengke.du@windriver.com" target="_blank">dengke.du@windriver.com</a>> wrote:<br>
>><br>
>> using getrandom syscall on linux 3.17+, so when we compiling<br>
>> expat-native<br>
>> on the kernel older than 3.17, that would be failed.<br>
><br>
><br>
> It's failing on Debian 8, which is kernel 4.9.0:<br>
><br>
> | ../expat-2.2.2/lib/xmlparse.c:<wbr>56:3: error: #error You do not have support<br>
> for any sources of high quality entropy enabled. For end user security, that<br>
> is probably not what you want. Your options include: * Linux + glibc >=2.25<br>
> (getrandom): HAVE_GETRANDOM, * Linux + glibc <2.25 (syscall SYS_getrandom):<br>
> HAVE_SYSCALL_GETRANDOM, * BSD / macOS (arc4random_buf): HAVE_ARC4RANDOM_BUF,<br>
> * libbsd (arc4random_buf): HAVE_ARC4RANDOM_BUF + HAVE_LIBBSD, * Windows<br>
> (RtlGenRandom): _WIN32. If insist on not using any of these, bypass this<br>
> error by defining XML_POOR_ENTROPY; you have been warned. For CMake, one way<br>
> to pass the define is: cmake -DCMAKE_C_FLAGS="-pipe -O2<br>
> -DHAVE_SYSCALL_GETRANDOM" . If you have reasons to patch this detection code<br>
> away or need changes to the build system, please open a bug. Thank you!<br>
><br>
> (<a href="https://autobuilder.yocto.io/builders/nightly-ppc/builds/379/steps/BuildImages/logs/stdio" rel="noreferrer" target="_blank">https://autobuilder.yocto.io/<wbr>builders/nightly-ppc/builds/37<wbr>9/steps/BuildImages/logs/stdio</a><wbr>)<br>
><br>
> I suspect the detection code is well and truly broken.<br>
><br>
<br>
</span>I posted another patch doing this upgrade. I wonder if it has same<br>
issue. it works on my 3.12 kernel based host.<br>
<br>
> Ross<br>
<div class="m_6787301692248884067HOEnZb"><div class="m_6787301692248884067h5">><br>
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