Minimize exported symbols of libtriton#9922
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The hero we need but don't deserve
When extensions are not enabled, libtriton only needs to export a single symbol `_PyInit_libtriton`. However, currently: 1. On macOS, we export all LLVM symbols since we don't have something like `exclude-libs`. 2. On Linux, despite `exclude-libs` we still export ~100 symbols, mostly from template instantiations. Maintaining an explicit symbol export list ensure the interface is very narrowly scoped, which: 1. Minimizes the chance of symbol conflicts. This is especially a problem on macOS, where we currently export everything, and cpython by default opens libraries with RTLD_GLOBAL (python/cpython#137880). 2. Allows the linker to strip dead code better. 3. Reduces the size of the symbol table. On macOS arm64, this change reduces the size of a stripped libtriton from 133.7 MiB to 113.6 MiB.
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This was referenced Apr 27, 2026
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This change proposes a split into two libraries: - `libtritoncore.so` which would (eventually) contain only Triton code, nothing vendor-specific; all of these symbols are exported - `libtriton.so` which `RPATH`-depends on `libtritoncore.so` and includes all of vendor-specific code with the Python bindings; these symbols are all hidden (see triton-lang#9922).
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When extensions are not enabled, libtriton only needs to export a single
symbol
_PyInit_libtriton. However, currently:something like
exclude-libs.exclude-libswe still export ~100 symbols, mostlyfrom template instantiations.
Maintaining an explicit symbol export list ensure the interface is very
narrowly scoped, which:
problem on macOS, where we currently export everything, and cpython
by default opens libraries with RTLD_GLOBAL (Default dlopenflags inconsistent between Linux and macOS python/cpython#137880).
reduces the size of a stripped libtriton from 133.7 MiB to 113.6 MiB.