Alan-Jowett / sonde / 27977227551

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Build Type

push

github

Committed by web-flow

Commit Message

Add globals diagnostic BPF artifacts (#1158)

* Add globals diagnostic BPF artifacts

Add a resident globals diagnostic BPF program with a paired decoder and logging handler, update the validation specs, and add a focused handler integration test.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Fix globals diagnostic bytecode layout

Inline the byte packing and unpacking logic so clang does not place local helper subroutines in .text. This keeps the extracted sonde bytecode self-contained for node execution.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Rewrite global data relocations

Convert ELF relocations for .rodata, .data, and .bss references into LD_DW_IMM src=1 map-index loads before serializing ProgramImage bytecode. This preserves global-variable accesses for node and decoder images and fixes the globals diagnostic program on hardware.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Support direct global map values

Rewrite ELF global-data relocations to map-value pseudos and teach the interpreter to load entry-zero value pointers directly. This preserves C global variable accesses for resident programs and decoders, and adds regression coverage for the new runtime path.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Fix PR feedback on globals diagnostic handler

Handle negative CBOR integers in the globals diagnostic handler, add coverage for negative decoded readings, and remove the inaccurate E2E validation note.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Fix direct decoder map relocations

Reject one-past-end src=6 direct map-value reloc... (continued)

Coverage Stats

609 of 698 new or added lines in 4 files covered. (87.25%)

804 existing lines in 1 file now uncovered.

40464 of 49697 relevant lines covered (81.42%)

237.08 hits per line