[EX]Re: xilinx_zynqmp_ilp32_zu3eg namespace issue (cmath round not in std)

Trip Richert trip.richert at nta-inc.net
Wed Oct 5 18:54:23 UTC 2022


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 <joel at rtems.org>
Sent: Wednesday, October 5, 2022 1:43 PM
To: Trip Richert <trip.richert at nta-inc.net>
Cc: users at rtems.org <users at 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 <trip.richert at nta-inc.net<mailto:trip.richert at 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 <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

What gcc version is this? <cmath> 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


________________________________

CONFIDENTIALITY NOTICE: The contents of this e-mail message may be privileged, confidential, proprietary, Controlled Unclassified Information (CUI) or otherwise protected against disclosure or dissemination. This e-mail message and any files transmitted with it are intended solely for the use of the individual/individuals or entity/entities to whom they are addressed. If you are not the intended recipient of this message, any dissemination, distribution, printing or copying is strictly prohibited. If you have received this message in error, please e-mail or call the sender (trip.richert at nta-inc.net<mailto:trip.richert at nta-inc.net>, 2563361406) and destroy all copies.


_______________________________________________
users mailing list
users at rtems.org<mailto:users at rtems.org>
http://lists.rtems.org/mailman/listinfo/users

EXTERNAL SENDER EMAIL WARNING: Do not click links or open attachments unless you recognize the sender and know the content is safe.

________________________________

CONFIDENTIALITY NOTICE: The contents of this e-mail message may be privileged, confidential, proprietary, Controlled Unclassified Information (CUI) or otherwise protected against disclosure or dissemination. This e-mail message and any files transmitted with it are intended solely for the use of the individual/individuals or entity/entities to whom they are addressed. If you are not the intended recipient of this message, any dissemination, distribution, printing or copying is strictly prohibited. If you have received this message in error, please e-mail or call the sender (trip.richert at nta-inc.net, 2563361406) and destroy all copies.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/users/attachments/20221005/20b26646/attachment.htm>


More information about the users mailing list