* fix(flutter): check section-backed symbol tables against PT_LOAD
The section-backed ELF path read .dynsym and .dynstr only through their
section file offsets. The stripped PT_DYNAMIC path and snapshot symbols
resolve through the PT_LOAD map. A second PT_LOAD interpretation over an
allocated symbol or string table was therefore ignored, and
inspect-dart-aot reported complete coverage from metadata the loader may
read differently.
An allocated (SHF_ALLOC) dynamic symbol table and its string table now
need a single file-backed PT_LOAD interpretation that matches the section
offset, the same check the dynamic path applies to its tables. Otherwise
the symbol inventory is refused with the mapping reason, and
inspect-dart-aot reports that no recognizable snapshot selection remains.
Non-allocated tables keep their section-offset reading.
Fixes#3346
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* test(flutter): cover allocated ELF32 symbol-table mapping checks
Add an ELF32 (ARM) counterpart of the synthetic ELF64 image and run the
allocated-table cases for both classes, so the ELF32 section-header reads
in the mapping check are exercised: matching mappings, conflicting symbol
and string mappings, and a disagreeing section offset.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
