Fix JIT crash with instrumented generators

[bwoebi]

The JIT will look up zend_op_trace_info in (char*)EX(opline) + offset, where offset is generally somewhere in valid memory, but will effectively have random values, and crash when using these.

Also add tooling to trivially open a randomized corefile from circleci.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.47%. Comparing base (d75a84d) to head (dcbf93a).
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2797      +/-   ##
============================================
- Coverage     76.68%   76.47%   -0.22%     
  Complexity     2452     2452              
============================================
  Files           169      170       +1     
  Lines         18052    18120      +68     
  Branches        913      913              
============================================
+ Hits          13844    13857      +13     
- Misses         3713     3768      +55     
  Partials        495      495              

Flag	Coverage Δ
appsec-extension	69.27% <ø> (ø)
tracer-extension	78.27% <100.00%> (-0.95%)	⬇️
tracer-php	78.40% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
zend_abstract_interface/hook/hook.c	54.78% <100.00%> (+0.11%)	⬆️

... and 1 file with indirect coverage changes

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[pr-commenter]

Benchmarks

Benchmark execution time: 2024-08-19 15:52:40

Comparing candidate commit dcbf93a in PR branch bob/fixup-randomized with baseline commit d75a84d in branch master.

Found 0 performance improvements and 11 performance regressions! Performance is the same for 167 metrics, 0 unstable metrics.

scenario:ContextPropagationBench/benchInject64Bit-opcache

• 🟥 execution_time [+147.881ns; +352.119ns] or [+2.097%; +4.993%]

scenario:LaravelBench/benchLaravelBaseline-opcache

• 🟥 execution_time [+82.148µs; +206.832µs] or [+3.157%; +7.949%]

scenario:LaravelBench/benchLaravelOverhead-opcache

• 🟥 execution_time [+57.565µs; +189.455µs] or [+2.021%; +6.651%]

scenario:PDOBench/benchPDOBaseline

• 🟥 execution_time [+12.360µs; +17.524µs] or [+7.370%; +10.449%]

scenario:PDOBench/benchPDOOverhead

• 🟥 execution_time [+16.446µs; +18.147µs] or [+6.400%; +7.062%]

scenario:PDOBench/benchPDOOverhead-opcache

• 🟥 execution_time [+6.653µs; +15.072µs] or [+2.460%; +5.572%]

scenario:PDOBench/benchPDOOverheadWithDBM

• 🟥 execution_time [+16.688µs; +19.897µs] or [+6.002%; +7.156%]

scenario:PDOBench/benchPDOOverheadWithDBM-opcache

• 🟥 execution_time [+14.993µs; +16.848µs] or [+4.908%; +5.515%]

scenario:SamplingRuleMatchingBench/benchRegexMatching2

• 🟥 execution_time [+162.026ns; +391.774ns] or [+2.589%; +6.260%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+138.998ns; +392.602ns] or [+2.195%; +6.199%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3-opcache

• 🟥 execution_time [+130.350ns; +367.450ns] or [+2.029%; +5.719%]