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interface/vcos/pthreads/CMakeLists.txt: fix build with libexecinfo #719

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@ffontaine ffontaine commented Feb 25, 2022

interface/vcos/glibc/vcos_backtrace.c uses execinfo.h which can be provided by libexecinfo on uclibc or musl so link with it if needed to avoid the following build failure:

/home/peko/autobuild/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabi/10.3.0/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld: ../../build/lib/libvcos.so: undefined reference to `backtrace_symbols'

Fixes:

@ffontaine ffontaine changed the title don't override CMAKE_EXE_LINKER_FLAGS interface/vcos/pthreads/CMakeLists.txt: fix build with libexecinfo Jun 8, 2022
interface/vcos/glibc/vcos_backtrace.c uses execinfo.h which can be
provided by libexecinfo on uclibc or musl so link with it if needed to
avoid the following build failure:

/home/peko/autobuild/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabi/10.3.0/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld: ../../build/lib/libvcos.so: undefined reference to `backtrace_symbols'

Fixes:
 - http://autobuild.buildroot.org/results/93d3b8cc2ac5dfa9d4b44946c0b4d8171e8f52a1

Signed-off-by: Fabrice Fontaine <[email protected]>
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Do you have some comments on this PR?

@6by9
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6by9 commented Dec 19, 2023

Please note the main README for the repo

This repo is ancient and deprecated.

It largely contains code using proprietary APIs to interface to the VideoCore firmware. We have since move to standard linux APIs.

V4L2, DRM/KMS and Mesa are the APIs you should be using.

The few useful tools from here (dtoverlay, dtmerge, vcmailbox, vcgencmd) have been moved to the raspberrypi/utils repo.

Code from here is no longer installed on latest RPiOS Bookworm images.

If you are using code from here you should rethink your solution.

Consider this repo closed.

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