<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 5, 2022 at 1:20 PM Trip Richert <<a href="mailto:trip.richert@nta-inc.net">trip.richert@nta-inc.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg4125583652592345574">
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<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">I'm having an issue compiling using with the ilp32 compiler. Some free functions, which should be in the std namespace, aren't namespaced.</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">Here's an example.</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">#include <cmath></span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">double round_wrapper(double val)</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">{</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline"> return std::round(val);</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">}</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">I get an error message that the round function isn't in the std namespace. Calling return round(val); without the std namespace compiles successfully. </span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">This is the command I used to compile</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
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<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">/opt/rtems/6/aarch64/bin/aarch64-rtems6-g++ -std=gnu++11 -D_GNU_SOURCE </span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">-D__RTEMS_MAJOR__=6 -D__rtems__ -fno-strict-aliasing -mcpu=cortex-a53 -mabi=ilp32</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">-isystem /opt/rtems/6/aarch64/bsps/aarch64-rtems6/xilinx_zynqmp_ilp32_zu3eg/lib/include -qrtems -ffunction-sections </span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">-fdata-sections -fPIC -o test.obj -c example.cpp</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">I tried a couple of revisions of rtems, the latest was aarch64-rtems6-g++ (GCC) 12.2.1 20220924 (RTEMS 6, RSB cfed1659a297cb0f95a03e053345962097aa02bf,
Newlib 01f6251c0)</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">if I try to compile the exact same code with similar arguments for arm zedboard, it compiles successfully. So, something is different about
the ilp32 compiler</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">/opt/rtems/6/arm/bin/arm-rtems6-g++ -std=gnu++11 -D__RTEMS_MAJOR__=6 -D__rtems__ -fno-strict-aliasing -mthumb -mfpu=neon -mfloat-abi=hard
-march=armv7-a -mtune=cortex-a9 -isystem /opt/rtems/6/arm/bsps/arm-rtems6/xilinx_zynq_zedboard/lib/include -qrtems -ffunction-sections -fdata-sections -fPIC -o test.obj -c example.cpp</span></div></div></blockquote><div><br></div><div>What gcc version is this? <cmath> is provided by gcc. </div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg4125583652592345574"><div dir="ltr"><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">I wasn't sure whether to send this to the bug email list, or to check here first to see if someone noticed something I was messing up first. </span></div></div></blockquote><div><br></div><div>This is a good enough place to start the discussion.</div><div><br></div><div>--joel </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg4125583652592345574"><div dir="ltr"><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">Thanks,</span><br style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255)">
<span style="color:rgb(32,31,30);font-size:14.6667px;background-color:rgb(255,255,255);display:inline">Trip Richert</span>
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