xilinx_zynqmp_ilp32_zu3eg namespace issue (cmath round not in std)

[Trip Richert]

I'm having an issue compiling using with the ilp32 compiler.  Some free functions, which should be in the std namespace, aren't namespaced.

Here's an example.

#include <cmath>
double round_wrapper(double val)
{
   return std::round(val);
}

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.

This is the command I used to compile

/opt/rtems/6/aarch64/bin/aarch64-rtems6-g++ -std=gnu++11 -D_GNU_SOURCE
-D__RTEMS_MAJOR__=6 -D__rtems__ -fno-strict-aliasing -mcpu=cortex-a53 -mabi=ilp32
-isystem /opt/rtems/6/aarch64/bsps/aarch64-rtems6/xilinx_zynqmp_ilp32_zu3eg/lib/include -qrtems -ffunction-sections
-fdata-sections -fPIC -o test.obj -c example.cpp

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)

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

/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

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.

Thanks,
Trip Richert


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