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[CLI] error on not finding symbol #38994

Merged
merged 1 commit into from
Apr 16, 2021
Merged

[CLI] error on not finding symbol #38994

merged 1 commit into from
Apr 16, 2021

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vchuravy
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From #38980, adds a verification when the CLI can't find a symbol.

Currently doesn't work since:

src/processor_x86.cpp
7:extern "C" JL_DLLEXPORT void jl_cpuid(int32_t CPUInfo[4], int32_t InfoType)
30:extern "C" JL_DLLEXPORT void jl_cpuidex(int32_t CPUInfo[4], int32_t InfoType, int32_t subInfoType)

is only exported on x86.

@vchuravy vchuravy mentioned this pull request Dec 25, 2020
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@staticfloat
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I've added some preprocessor trickery to export jl_cpuid only on x86_64 and i686 processors, but it is not at all clear to me whether this is actually desirable:

It would appear that jl_cpuid is not listed in julia.h. This could be an oversight, (I believe this was exported to be used from Julia code for detecting the currently-running microarchitecture for march-specific BB binaries) but I think since the only real usecase we have for this right now is to use it from Julia code, I'm leaning more toward just removing it from src/jl_exported_funcs.inc and letting it be reachable from Julia code only and not from C code at all. I would feel differently if we had a unified interface across all architectures, but sadly we don't.

@vtjnash what do you think?

vtjnash
vtjnash approved these changes Apr 3, 2021
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@vtjnash vtjnash marked this pull request as ready for review April 3, 2021 17:09
@vtjnash vtjnash added status:merge me PR is reviewed. Merge when all tests are passing and removed status:merge me PR is reviewed. Merge when all tests are passing labels Apr 3, 2021
@vtjnash vtjnash added the status:merge me PR is reviewed. Merge when all tests are passing label Apr 6, 2021
@vtjnash vtjnash force-pushed the vc/verify_cli branch 2 times, most recently from bacad09 to c31713b Compare April 8, 2021 07:14
@vtjnash vtjnash added status:forget me not PRs that one wants to make sure aren't forgotten and removed status:merge me PR is reviewed. Merge when all tests are passing labels Apr 9, 2021
vtjnash
vtjnash reviewed Apr 9, 2021
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@vchuravy @vtjnash
[CLI] error on not finding symbol
b680ef1 
Also removes some excess exports that are not in julia.h, including
intrinsics and the unused `jl_cpuid` function (only defined on Intel
processors).
@vtjnash vtjnash added status:merge me PR is reviewed. Merge when all tests are passing and removed status:forget me not PRs that one wants to make sure aren't forgotten labels Apr 15, 2021
@vtjnash vtjnash merged commit 67f29d8 into master Apr 16, 2021
@vtjnash vtjnash deleted the vc/verify_cli branch April 16, 2021 16:42
@simeonschaub simeonschaub removed the status:merge me PR is reviewed. Merge when all tests are passing label Apr 28, 2021
ElOceanografo pushed a commit to ElOceanografo/julia that referenced this pull request May 4, 2021
@vchuravy @ElOceanografo
[CLI] error on not finding symbol (JuliaLang#38994)
1608c1b 
Also removes some excess exports that are not in julia.h, including
intrinsics and the unused `jl_cpuid` function (only defined on Intel
processors).
vtjnash added a commit that referenced this pull request May 7, 2021
@vtjnash
[CLI] ensure error on not finding symbol
e9029e1 
This sanity check was attempted in #38994, but dlsym is often also okay
with finding the trampoline, so we want to also check that it does not
use that to resolve the trampoline ad infinitum.
@vtjnash vtjnash mentioned this pull request May 7, 2021
Merged
antoine-levitt pushed a commit to antoine-levitt/julia that referenced this pull request May 9, 2021
@vchuravy @antoine-levitt
[CLI] error on not finding symbol (JuliaLang#38994)
d67ec1f 
Also removes some excess exports that are not in julia.h, including
intrinsics and the unused `jl_cpuid` function (only defined on Intel
processors).
vtjnash added a commit that referenced this pull request May 10, 2021
@vtjnash
[CLI] ensure error on not finding symbol (#40748)
e4f79b7 
This sanity check was attempted in #38994, but dlsym is often also okay
with finding the trampoline, so we want to also check that it does not
use that to resolve the trampoline ad infinitum.
shirodkara pushed a commit to shirodkara/julia that referenced this pull request Jun 9, 2021
@vtjnash
[CLI] ensure error on not finding symbol (JuliaLang#40748)
72e5aff 
This sanity check was attempted in JuliaLang#38994, but dlsym is often also okay
with finding the trampoline, so we want to also check that it does not
use that to resolve the trampoline ad infinitum.
johanmon pushed a commit to johanmon/julia that referenced this pull request Jul 5, 2021
@vchuravy @johanmon
[CLI] error on not finding symbol (JuliaLang#38994)
bb58742 
Also removes some excess exports that are not in julia.h, including
intrinsics and the unused `jl_cpuid` function (only defined on Intel
processors).
johanmon pushed a commit to johanmon/julia that referenced this pull request Jul 5, 2021
@vtjnash @johanmon
[CLI] ensure error on not finding symbol (JuliaLang#40748)
d7286b7 
This sanity check was attempted in JuliaLang#38994, but dlsym is often also okay
with finding the trampoline, so we want to also check that it does not
use that to resolve the trampoline ad infinitum.
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@vchuravy @staticfloat @vtjnash @simeonschaub