make fail with warnings about aws-lc HOT 7 CLOSED

What compiler and version is being used when encountering this issue?

Also, what is the output of uname -m on the target system? This will help us to understand what the target architecture is being set to when building.

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it is on the bottom of the comment:

Relevant details
CPU architecture: Linux raspberrypi 5.10.17+ #1403 Mon Feb 22 11:26:13 GMT 2021 armv6l GNU/Linux
CPU name: (Xeon Platinum 8000, AMD EPYC 7000...)
OS: raspberry pi light
Compiler: cmake version 3.16.3
AWS-LC commit: 7095a4b

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I did see those details that were provided, but for compiler it would also be helpful to know what version of GCC/Clang are being used in addition to the version of CMake.

I also asked for the output of uname -m, because that helps us better understand what the architecture is being represented as for CMAKE_SYSTEM_PROCESSOR.

from aws-lc.

uname -m
armv7l

gcc --version
gcc (Raspbian 8.3.0-6+rpi1) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

cc --version
cc (Raspbian 8.3.0-6+rpi1) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

c++ --version
c++ (Raspbian 8.3.0-6+rpi1) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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This has already been an issue once, for example this commit c58a85f changed the alignment size from 64 to 16 because on aarch64 the compiler was giving the same warning/error. Here the compiler is complaining even about alignment of 16 because armv7l is a 32-bit architecture.

from aws-lc.

Hello, so it seems that the issue you are seeing with the build on 32-bit ARM is related to a bug in gcc compiler (versions 7.2.1, 7.3, 8.2, 8.3.1, 9.2.1). Using clang compiler for example should solve the issue and you should be able to build the library. You can choose the compiler for cmake by prepending CC=clang CXX=clang++ to the cmake invocation. Thanks for exploring the library and please let us know if this solves your problem!

from aws-lc.

Thanks for reaching out to us! We are going to close this issue, let us know if trying a different compiler doesn't fix the issue and feel free to reopen the issue.

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