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Hardening build results about luajit2 HOT 2 OPEN

amdei avatar amdei commented on June 25, 2024
Hardening build results

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agentzh avatar agentzh commented on June 25, 2024

@amdei stack-protector is never supported in LuaJIT. It's explicitly disabled in LuaJIT's own build system (including the official one). It requires extra effort to add support if not impossible.

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amdei avatar amdei commented on June 25, 2024

@agentzh Thanks a lot for clarification!

Ok, let's leave stack-protector aside then.

With your generous help in #90, following configuration passed all tests on both Debian 9&10 x64 for me:

export LUAJIT_PREFIX=/opt/luajit21
export LUAJIT_COMMON_XCFLAGS="-DLUAJIT_ENABLE_LUA52COMPAT -DLUA_USE_APICHECK -DLUA_USE_ASSERT -DLUAJIT_NUMMODE=2 -msse4.2 -O1"
export LUAJIT_XCFLAGS="$LUAJIT_COMMON_XCFLAGS" LUA52=1

export CFLAGS="--param=ssp-buffer-size=4 -Wformat -Werror=format-security -Werror=implicit-function-declaration -Winit-self -Wp,-D_FORTIFY_SOURCE=2 -fPIC" 
export LDFLAGS="-Wl,-z,relro -Wl,-z,now -Wl,--as-needed -pie"

make -j `nproc` PREFIX=$LUAJIT_PREFIX XCFLAGS="$LUAJIT_XCFLAGS"
make install PREFIX=$LUAJIT_PREFIX

How do you think, is it safe to use it in production, aiming to embed such LuaJIT into NGINX?

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