Refactor julia initialization to behave better when used as a dylib #56334
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…ing embedding julia as a shared library behave better
gbaraldi
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topolarity
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topolarity
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src/jlapi.c
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| // Should be called in an attribute constructor function to make initialization threadsafe when embedding as an SO. |
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What does this comment mean? This is an __attribute__((constructor))
topolarity
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| julia_init(jl_options.image_file_specified ? JL_IMAGE_CWD : JL_IMAGE_JULIA_HOME); | ||
| jl_atomic_store_release(&jl_runtime_is_initialized, 1); |
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Should this be set by julia_init instead?
It seems like embedding applications might call that directly
topolarity
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topolarity
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| // if (offset != 0) | ||
| // pgcstack = tp + offset; // fast | ||
| // else | ||
| // pgcstack_getter = load pgcstack_func_slot |
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This pseudocode doesn't look properly indented
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Looks like this ironically brokes the trimming test. Any idea what's up @gbaraldi ? |
topolarity
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| } | ||
| //TODO: Implement option parsing | ||
| assert(sysimg_handle); | ||
| // This code path assumes that you are either an executable or dylib with the sysimage linked in |
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| jl_set_sysimg_so(jl_base_image_handle); | ||
| jl_options.image_file = jl_options.julia_bin; // XXX: Use dladdr on base_image_handle? |
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It is possible to pass this in explicitly instead of relying on it to be initialized externally?
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The big changes are moving initialization to when someone calls into julia, making it all automatic. (It still supports manually initializing the runtime). I'm not done with this because i still need to figure out how to embed runtime arguments. Currently it's piped as a string but it's not clear yet if that's the best way forward.
We maybe want to make the changes to adopt thread handling only exist behind a flag. Though that potentially doesn't add much because essentially this adds a very predictable null check to ccallable