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William Hesse ec53fdd0bf Revert "[build, vm] Access TLS with less code." 
This reverts commit aa79cf2708.

Reason for revert: -fPIC is needed in more places than the CL adds it to, see CI builds at https://ci.chromium.org/ui/p/dart-internal/builders/ci/dart-sdk-linux-riscv64-dev/405/overview

Original change's description:
> [build, vm] Access TLS with less code.
>
> - Avoid TLS initialization checks by using inline initialization.
> - Avoid global offset table indirection by reducing -fPIC to -fPIE.
>
> out/ReleaseXARM64/exe.stripped/dart_precompiled_runtime
> 11137992 -> 11274776 (-1.21%)
>
> We still need -fPIC in some places because we build a few shared libraries for FFI, so copy some of Fuchsia's GN setup to use -fPIE or -fPIC as appropriate.
>
> TEST=ci
> Change-Id: I6402fce3366a9c4b2741ffb4811562292b8ecb71
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/285704
> Commit-Queue: Ryan Macnak <rmacnak@google.com>
> Reviewed-by: Daco Harkes <dacoharkes@google.com>

Change-Id: Idacb7869e9fa9ad0f7ed7b0caa2bae19deece7d0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/286144
Reviewed-by: Martin Kustermann <kustermann@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: William Hesse <whesse@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2023-03-01 12:19:07 +00:00
..
config Revert "[build, vm] Access TLS with less code." 2023-03-01 12:19:07 +00:00
dart [dart2wasm] Build product snapshot when building for the SDK. 2022-10-26 17:04:17 +00:00
fuchsia Roll Fuchsia SDK to 7b3b23b2c0da59b3aceab6c49fbe7d9ed34d7382. 2023-02-09 22:43:36 +00:00
linux [infra] Support for Alpine Linux Sysroot 2023-01-19 10:36:51 +00:00
mac Spelling build 2023-01-23 08:56:14 +00:00
rust [infra] Migrate scripts to python3 2021-04-15 10:10:20 +00:00
sanitizers Spelling build 2023-01-23 08:56:14 +00:00
secondary [VM] Add dependencies needed to generate protozero code 2023-01-26 16:07:22 +00:00
toolchain Revert "Reland "Reland "[dart2wasm] Include wasm-opt in the shipped dart-sdk.""" 2023-02-17 09:04:50 +00:00
.gitignore [infra] Support for Alpine Linux Sysroot 2023-01-19 10:36:51 +00:00
detect_host_arch.py [infra] Migrate scripts to python3 2021-04-15 10:10:20 +00:00
executable_suffix.gni Fix builds targeting Android from a Windows host gen_snapshot. 2019-06-07 00:49:33 +00:00
find_depot_tools.py [infra] Update windows build and toolchain setup python scripts. 2022-08-03 16:30:56 +00:00
gn_helpers.py Fix gn helper script to create *valid* strings for settings containing backslashes. 2021-05-19 12:35:16 +00:00
gn_run_binary.py [build] Make app snapshot build failures copy/pastable. 2021-10-14 11:51:32 +00:00
OWNERS [infra] Give VM engineers OWNERS over tools/gn.py et al. 2022-04-25 17:47:23 +00:00
README.dart.md fix(docs): corrects common typos in project documentation 2021-05-18 15:48:18 +00:00
vs_toolchain.py [infra] Update windows build and toolchain setup python scripts. 2022-08-03 16:30:56 +00:00

README.dart.md

This directory was taken from a snapshot of flutter/engine/src/build/.

The snapshot was taken with a recursive copy cp -R of the directory from the flutter repository.

The contents has now diverged significantly from Flutter, and is maintained independently by the Dart team. It is used to support the GN build system.