Link error undefined reference to _getentropy.o

[cy33hc]

Hi. I'm using devkitA64-r26.1-2 and getting a link error below.

/opt/devkitpro/devkitA64/bin/../lib/gcc/aarch64-none-elf/14.1.0/../../../../aarch64-none-elf/bin/ld: /opt/devkitpro/devkitA64/bin/../lib/gcc/aarch64-none-elf/14.1.0/../../../../aarch64-none-elf/lib/pic/libg.a(libc_a-sysgetentropy.o): in function `getentropy':
(.text.getentropy+0x28): undefined reference to `_getentropy_r'
collect2: error: ld returned 1 exit status

[WinterMute]

What's pulling in getentropy?

We can have a look & see what we can do, will take a little toolchain fiddling though.

[cy33hc]

I believe it's from libarchive. If I exclude libarchive, then I just get a bunch of link errors related to libarchive and don't see getentropy link error

[cy33hc]

I built libarchive myself and I dont get the getentropy link error. Used cmake instead. Used same version 3.7.2 and patches distributed with pacman.

cmake -DCMAKE_TOOLCHAIN_FILE=/opt/devkitpro/cmake/Switch.cmake -DBUILD_TESTING=OFF -DENABLE_BZip2=OFF -DENABLE_CAT=OFF -DENABLE_CPIO=OFF -DENABLE_TAR=OFF -DENABLE_TEST=OFF -DENABLE_UNZIP=OFF -DENABLE_ZSTD=ON -DENABLE_OPENSSL=OFF ..

[WinterMute]

Your self build has disabled half the options in libarchive and I'm not sure that's actually the source of your issue. As far as I can tell none of our portlibs reference getentropy so I'm not really sure what's happening. Can you by any chance provide a small code sample which shows the error you've reported?

[cy33hc]

Rebuilt again using cmake, using same disabled options from configure except for disabling additionally the TEST code. Didn't get link error to getentropy

cmake -DCMAKE_TOOLCHAIN_FILE=/opt/devkitpro/cmake/Switch.cmake -DENABLE_CAT=OFF -DENABLE_CPIO=OFF -DENABLE_TAR=OFF -DENABLE_UNZIP=OFF -DENABLE_ZSTD=ON -DENABLE_OPENSSL=OFF -DENABLE_LIBXML2=OFF -DENABLE_ACL=OFF -DENABLE_TEST=OFF -DBUILD_TESTING=OFF ..

The ENABLE_CAT=OFF, ENABLE_CPIO=OFF, ENABLE_TAR=OFF, ENABLE_UNZIP=OFF etc.. are the same as disable-bsdcat, disable-bsdtar , disable-bsdunzip, disable-bsdcpio etc..

./configure --prefix="${PORTLIBS_PREFIX}" --host=aarch64-none-elf \
--disable-shared --enable-static \
--disable-bsdtar --disable-bsdcat \
--disable-bsdunzip --disable-bsdcpio --disable-acl \
--without-xml2 --without-openssl

I used libarchive in my project. https://github.com/cy33hc/switch-ezremo ... p_util.cpp

Currently building the app using libarchive that I built myself.