I've been using primarily :
aarch64-rtems6-gcc (GCC) 10.3.1 20210409 (RTEMS 6, RSB no-repo, Newlib 0c0f3df)
aarch64-rtems6-g++ (GCC) 10.3.1 20210409 (RTEMS 6, RSB no-repo, Newlib 0c0f3df)
but also tested it with
aarch64-rtems6-gcc (GCC) 12.2.1 20220924 (RTEMS 6, RSB
cfed1659a297cb0f95a03e053345962097aa02bf, Newlib 01f6251c0)
aarch64-rtems6-g++ (GCC) 12.2.1 20220924 (RTEMS 6, RSB
cfed1659a297cb0f95a03e053345962097aa02bf, Newlib 01f6251c0)
with same result.
(I don't know how to remove the disclaimer below, but I'm aware that this is a
public email list and intend for the contents of this email to be available to
everyone. I'll swap to an email without the confidentiality notice after this
email).
From: Joel Sherrill
Sent: Wednesday, October 5, 2022 1:43 PM
To: Trip Richert
Cc: users@rtems.org
Subject: [EX]Re: xilinx_zynqmp_ilp32_zu3eg namespace issue (cmath round not in
std)
On Wed, Oct 5, 2022 at 1:20 PM Trip Richert
mailto:trip.rich...@nta-inc.net>> wrote:
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
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
What gcc version is this? is provided by gcc.
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.
This is a good enough place to start the discussion.
--joel
Thanks,
Trip Richert
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