feat(simulator): support ASLR-safe grouped uprobes - #11
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Replace the ASLR-disabled execution model with ELF-relative signal addresses resolved in userspace at model startup. Start the model under ptrace, wait for its post-exec stop, derive its load bias from /proc/<pid>/maps and ELF load segments, populate eBPF maps with runtime addresses, then detach before normal execution. Keep the uprobe-multi READS/WRITES configuration format, validate hook symbols and ELF data addresses, and fix group-cookie handling for multiple write groups. Simplify the eBPF program to use resolved runtime addresses directly. Update demo configurations with instruction-boundary offsets for the local model binaries, add relocation/ptrace lifecycle tests, remove the ASLR-disabling Make target, and document the new configuration workflow.
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Replace the ASLR-disabled execution model with ELF-relative signal addresses resolved in userspace at model startup.
Start the model under ptrace, wait for its post-exec stop, derive its load bias from /proc//maps and ELF load segments, populate eBPF maps with runtime addresses, then detach before normal execution.
Keep the uprobe-multi READS/WRITES configuration format, validate hook symbols and ELF data addresses, and fix group-cookie handling for multiple write groups. Simplify the eBPF program to use resolved runtime addresses directly.
Update demo configurations with instruction-boundary offsets for the local model binaries, add relocation/ptrace lifecycle tests, remove the ASLR-disabling Make target, and document the new configuration workflow.