Add bundled IO support to portable executor runner

[mansnils]

Executor runner supports both models with/wo bundled io in same path.
To enable bundled IO EXECUTORCH_BUILD_DEVTOOLS and
EXECUTORCH_ENABLE_BUNDLE_IO are required.

Adds tests in Arm backend for testing this/depending on this.
Except for enabling bundle-io for VGF backend where applicable,
some additional resnets model tests are enabled as well.

Avoids narrowing conversion errors in pte_to_header script by switching
char to unsigned char.

cc @freddan80 @per @zingo @oscarandersson8218 @digantdesai

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/15368

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❌ 8 New Failures, 3 Unrelated Failures

As of commit b024c7c with merge base de56c81 ():

NEW FAILURES - The following jobs have failed:

• pull / test-samsung-models-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 15ce68ea8d394d7a3cd4a8d18ce1a163ca9d75eeea38fab67401fdeed3328383 /exec failed with exit code 1
• pull / unittest-nxp-neutron / linux-job (gh)
  RuntimeError: Command docker exec -t 5f7162883407ec69e182ed5b8a97c1fb8a03106671e144bb935b79eec72da8a6 /exec failed with exit code 1
• Test CUDA Builds / export-gemma3-cuda-non-quantized / linux-job (gh)
  RuntimeError: Command docker exec -t a7fcfba29e24b89218590d9b1dfcb63eafcf33214565a4e929ab55cf75354983 /exec failed with exit code 2
• Test CUDA Builds / export-gemma3-cuda-quantized-int4-tile-packed / linux-job (gh)
  RuntimeError: Command docker exec -t ef3cc3524f4cc0a88d7fee04f6c69db1b0bff16ec8f303396f025864d61413ae /exec failed with exit code 2
• Test CUDA Builds / export-voxtral-cuda-non-quantized / linux-job (gh)
  RuntimeError: Command docker exec -t d595150d3fa65927f3abf26d6bb021edc218547be87582cf3bfb1b1bf6a152c1 /exec failed with exit code 2
• Test CUDA Builds / export-voxtral-cuda-quantized-int4-tile-packed / linux-job (gh)
  RuntimeError: Command docker exec -t f407b6d835fa78f7be4d3257eb0d1ba46b82d9ba1c2724e945439e3582c4dc54 /exec failed with exit code 2
• Test CUDA Builds / export-voxtral-cuda-quantized-int4-weight-only / linux-job (gh)
  RuntimeError: Command docker exec -t 25c9d6c10cdc9dba9cdcf949dc1f3ad5210b6b349d316dc31a95a0e6f5521b96 /exec failed with exit code 2
• Test Metal Backend / export-voxtral-metal-artifact / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 2

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• pull / unittest / linux / linux-job (gh) (detected as infra flaky with no log or failing log classifier)

BROKEN TRUNK - The following jobs failed but was present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / unittest-editable / linux / linux-job (gh) (trunk failure)
• trunk / unittest-release / linux / linux-job (gh) (trunk failure)

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[mansnils]

Need to either add DEVTOOLS=ON to all cmake recipes that builds the executor runner or use an optional build flag.

[JacobSzwejbka]

This file gets copy pasted a ton as a basic example of a runner. Im pretty resistant to something like this which will tempt people to use it it as a tester. Im already not a huge fan of having the benchmarking stuff in here.

[mansnils]

This is now an optional build flag.

[JacobSzwejbka]

just use gflags to pass these as an arg

[mansnils]

Will do

[JacobSzwejbka]

are .ptd and bundledProgram mutually exclusive? @lucylq @Gasoonjia.

ptd is only used to pass weights along its not another way to pass inputs to this file afaik

[mansnils]

Need to either add DEVTOOLS=ON to all cmake recipes that builds the executor runner or use an optional build flag.

This comment should be resolved now.
Apologies for force push after your comments @JacobSzwejbka