Add Linux support via ELF symbol scanner#22
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changelingonberry wants to merge 2 commits intospacestation13:mainfrom
Open
Add Linux support via ELF symbol scanner#22changelingonberry wants to merge 2 commits intospacestation13:mainfrom
changelingonberry wants to merge 2 commits intospacestation13:mainfrom
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At library load time, lua_compat.c:
1. Reads the host binary's .symtab from /proc/self/exe.
2. For each needed Lua API symbol, tries an exact C-name match first,
then a prefix match on the Itanium C++ mangled form _Z<len><name>,
which identifies the function regardless of its parameter types.
This handles aseprite's Lua being compiled as C++ without extern
"C".
3. Resolves the ASLR slide via dl_iterate_phdr and computes runtime
addresses as base + symtab offset.
4. Exposes plain C-named wrapper functions covering all 47 Lua/luaL
symbols that mlua requires.
build.rs compiles lua_compat.c via the cc crate on Linux only, linking
it into libdmi.so so mlua's extern declarations are satisfied at link
time with no undefined Lua symbols remaining.
Requires only a non-stripped self-built aseprite binary (.symtab
present).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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At library load time, lua_compat.c:
build.rs compiles lua_compat.c via the cc crate on Linux only, linking it into libdmi.so so mlua's extern declarations are satisfied at link time with no undefined Lua symbols remaining.
Requires only a non-stripped self-built aseprite binary (.symtab present).
This PR has been created with AI assistance.