Adding shared object to static binary, compiled with musl

[ghost]

How would I go about adding these to a static binary, compiled with musl?

Just playing around with luastatic, and I wanted to compile a file together with luaossl.
After compiling luaossl, I have the Lua bindings, a openssl.o file and an openssl.so file.

So far I've tried creating an archive using ar rcs openssl.a openssl.so, which gives me a static archive.
Then, doing lua luastatic.lua test.lua ../luaossl/src/openssl.lua ../luaossl/src/5.3/openssl.a /usr/lib/lua5.3/liblua.a -I/usr/include/lua5.3 -s -static

This results in module '_openssl' not found. require "openssl" works fine, because that is included in the luastatic bundle.
But the actual openssl.so is not, so it throws that error.

Cheers in advance!

---

The test.lua file:

local ssl = require "openssl"
print(ssl.version())
print(_VERSION)

[ghost]

Using Alpine Linux v3.20, kernel 6.6.32-0-virt on x86_64

[ers35]

This looks like a bug in luastatic where it incorrectly interprets the _openssl module as .openssl.

Try this:

# Install luastatic.
apk add lua5.4-luastatic --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing/

# Install required packages for building.
apk add gcc musl-dev openssl-dev openssl-libs-static lua5.4-dev

# Download and build luaossl.
wget https://github.com/wahern/luaossl/archive/refs/tags/rel-20220711.tar.gz
tar -xf rel-20220711.tar.gz
cd luaossl-rel-20220711/src
cc -c openssl.c -I/usr/include/lua5.4

# Create test.luastatic.c but don't compile it.
CC="" luastatic test.lua openssl*.lua /usr/lib/lua5.4/liblua.a openssl.o /usr/lib/libssl.a /usr/lib/libcrypto.a -I/usr/include/lua5.4

# Replace ".openssl" with "_openssl" to workaround the bug.
sed -i -e 's/\.openssl/_openssl/g' test.luastatic.c

# Build the static binary.
cc -Os test.luastatic.c /usr/lib/lua5.4/liblua.a openssl.o /usr/lib/libssl.a /usr/lib/libcrypto.a -I/usr/include/lua5.4 -o test

[ghost]

Did some more experimenting:
Moved the openssl.lua file from the luaossl directory to the luastatic directory

Using openssl.so instead of openssl.a gives me attempted static link of dynamic object.
lua luastatic.lua test.lua openssl.lua ../luaossl/src/5.3/openssl.so /usr/lib/lua5.3/liblua.a -I/usr/include/lua5.3 -s -static

Using openssl.o instead of openssl.so or openssl.a gives me a ton of undefined reference errors, all from luaossl.
lua luastatic.lua test.lua openssl.lua ../luaossl/src/5.3/openssl.so /usr/lib/lua5.3/liblua.a -I/usr/include/lua5.3 -s -static

[ghost]

This looks like a bug in luastatic where it incorrectly interprets the _openssl module as .openssl.

Try this:

# Install luastatic.
apk add lua5.4-luastatic --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing/

# Install required packages for building.
apk add gcc musl-dev openssl-dev openssl-libs-static lua5.4-dev

# Download and build luaossl.
wget https://github.com/wahern/luaossl/archive/refs/tags/rel-20220711.tar.gz
tar -xf rel-20220711.tar.gz
cd luaossl-rel-20220711/src
cc -c openssl.c -I/usr/include/lua5.4

# Create test.luastatic.c but don't compile it.
CC="" luastatic test.lua openssl*.lua /usr/lib/lua5.4/liblua.a openssl.o /usr/lib/libssl.a /usr/lib/libcrypto.a -I/usr/include/lua5.4

# Replace ".openssl" with "_openssl" to workaround the bug.
sed -i -e 's/\.openssl/_openssl/g' test.luastatic.c

# Build the static binary.
cc -Os test.luastatic.c /usr/lib/lua5.4/liblua.a openssl.o /usr/lib/libssl.a /usr/lib/libcrypto.a -I/usr/include/lua5.4 -o test

Yup, that seems to work. Compiled a working static executable that has luaossl and OpenSSL in it.
Thanks for the quick help, I was beginning to lose hope I was ever gonna get this working.

[ghost]

Should probably keep this open until the bug is fixed lol