Make static internals ptr pybind version specific#862
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jagerman merged 1 commit intopybind:masterfrom May 18, 2017
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(This doesn't affect test suite .so size at all.) |
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It's strange that gcc does that. The fix looks good to me. Might be nice to add a comment above the new function template since its purpose is a bit mysterious out of context. (As a side-note, placing |
Under gcc, the `static internals *internals_ptr` is shared across .so's, which breaks for obvious reasons. This commit fixes it by moving the static pointer declaration into a pybind-version-templated function.
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Added a comment, and removed the unneeded "inline". |
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A bit of further investigation: gcc only seems to behave this way when not compiling with With |
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Another way to fix this is to compile with |
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…cals This commit adds an attribute macro PYBIND11_UNSHARED_STATIC_LOCALS that forces a function to have hidden visibility under gcc. This is needed to force gcc to avoid sharing static local instances across modules (which happens even under a RTLD_LOCAL dlopen()!) This replaces the fix from pybind#862 to use this instead of the version-specific-template internals pointer.
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…cals This commit adds an attribute macro PYBIND11_UNSHARED_STATIC_LOCALS that forces a function to have hidden visibility under gcc. This is needed to force gcc to avoid sharing static local instances across modules (which happens even under a RTLD_LOCAL dlopen()!) This updates the workaround from pybind#862 to use this rather than the version-specific-template.
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…cals This commit adds an attribute macro PYBIND11_UNSHARED_STATIC_LOCALS that forces a function to have hidden visibility under gcc. This is needed to force gcc to avoid sharing static local instances across modules (which happens even under a RTLD_LOCAL dlopen()!) This updates the workaround from pybind#862 to use this rather than the version-specific-template.
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This commit adds a PYBIND11_UNSHARED_STATIC_LOCALS macro that forces a function to have hidden visibility under gcc and gcc-compatible compilers. gcc, in particular, needs this to to avoid sharing static local variables across modules (which happens even under a RTLD_LOCAL dlopen()!). clang doesn't appear to have this issue, but the forced visibility on internal pybind functions certainly won't hurt it and icc. This updates the workaround from pybind#862 to use this rather than the version-specific template.
jagerman
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This commit adds a PYBIND11_UNSHARED_STATIC_LOCALS macro that forces a function to have hidden visibility under gcc and gcc-compatible compilers. gcc, in particular, needs this to to avoid sharing static local variables across modules (which happens even under a RTLD_LOCAL dlopen()!). clang doesn't appear to have this issue, but the forced visibility on internal pybind functions certainly won't hurt it and icc. This updates the workaround from pybind#862 to use this rather than the version-specific template.
jagerman
added a commit
that referenced
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Aug 4, 2017
This commit adds a PYBIND11_UNSHARED_STATIC_LOCALS macro that forces a function to have hidden visibility under gcc and gcc-compatible compilers. gcc, in particular, needs this to to avoid sharing static local variables across modules (which happens even under a RTLD_LOCAL dlopen()!). clang doesn't appear to have this issue, but the forced visibility on internal pybind functions certainly won't hurt it and icc. This updates the workaround from #862 to use this rather than the version-specific template.
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Under gcc, the
static internals *internals_ptris shared across .so's, which breaks for obvious reasons.This commit fixes it by moving the static pointer declaration into a pybind-version-templated function.
Fixes #796.