This change makes submodule checkouts shallow by default. This
significantly reduces the time needed to do a recursive checkout when
`--shallow-submodules` is not specified, such as when `x` is not being
used.

…dynamically linked

Fixes the problem reported in
rust-lang#112391 (comment)

Signed-off-by: cui fliter <[email protected]>

…k-Simulacrum

Update Android system definitions and add riscv-linux-android as tier 3 target

This PR includes the following:
* Corrected Android system definitions for some types
* Support for the riscv64-linux-android target

The authoritative types for the system definitions can be found here: https://cs.android.com/android/platform/superproject/+/master:bionic/libc/include/sys/stat.h

Fixes rust-lang/compiler-team#640

remove repetitive words

…o-dist, r=Mark-Simulacrum

Move MinGW linker dist option to proper section

Using this option currently results in the error:
```
failed to parse TOML configuration 'config.toml': unknown field `include-mingw-linker`, expected one of `optimize`, `debug`, `codegen-units`, `codegen-units-std`, `debug-assertions`, `debug-assertions-std`, `overflow-checks`, `overflow-checks-std`, `debug-logging`, `debuginfo-level`, `debuginfo-level-rustc`, `debuginfo-level-std`, `debuginfo-level-tools`, `debuginfo-level-tests`, `split-debuginfo`, `run-dsymutil`, `backtrace`, `incremental`, `parallel-compiler`, `default-linker`, `channel`, `description`, `musl-root`, `rpath`, `verbose-tests`, `optimize-tests`, `codegen-tests`, `omit-git-hash`, `dist-src`, `save-toolstates`, `codegen-backends`, `lld`, `use-lld`, `llvm-tools`, `deny-warnings`, `backtrace-on-ice`, `verify-llvm-ir`, `thin-lto-import-instr-limit`, `remap-debuginfo`, `jemalloc`, `test-compare-mode`, `llvm-libunwind`, `control-flow-guard`, `new-symbol-mangling`, `profile-generate`, `profile-use`, `download-rustc`, `lto`, `validate-mir-opts` for key `rust`
```
That's because the option [belongs to `dist` section](https://github.com/rust-lang/rust/blob/bef6ff618f17398775e9d8cd23a6f47d983869dc/src/bootstrap/config.rs#L861).

cc rust-lang#108581

…=Mark-Simulacrum

Update `.gitmodules` to use shallow submodule clones

This change makes submodule checkouts shallow by default. This significantly reduces the time needed to do a recursive checkout when `--shallow-submodules` is not specified, such as when `x` is not being used.

…gx_platform, r=Mark-Simulacrum

Fix ice tests when librustc-driver is linked dynamically

Running `dump-ice-to-disk`and `short-ice` tests on Linux targeting `x86_64-fortanix-unknown-sgx` platform results in:
```
jenkins@31cf43196355:~/workspace/rust-sgx-ci/Raoul/rust$ cat /home/jenkins/workspace/rust-sgx-ci/Raoul/rust/build/x86_64-unknown-linux-gnu/test/run-make/dump-ice-to-disk/dump-ice-to-disk/*
/home/jenkins/workspace/rust-sgx-ci/Raoul/rust/build/x86_64-unknown-linux-gnu/stage1/bin/rustc: error while loading shared libraries: librustc_driver-fa98927b935b2881.so: cannot open shared object file: No such file or directory
/home/jenkins/workspace/rust-sgx-ci/Raoul/rust/build/x86_64-unknown-linux-gnu/stage1/bin/rustc: error while loading shared libraries: librustc_driver-fa98927b935b2881.so: cannot open shared object file: No such file or directory
/home/jenkins/workspace/rust-sgx-ci/Raoul/rust/build/x86_64-unknown-linux-gnu/stage1/bin/rustc: error while loading shared libraries: librustc_driver-fa98927b935b2881.so: cannot open shared object file: No such file or directory
/home/jenkins/workspace/rust-sgx-ci/Raoul/rust/build/x86_64-unknown-linux-gnu/stage1/bin/rustc: error while loading shared libraries: librustc_driver-fa98927b935b2881.so: cannot open shared object file: No such file or directory
```
Setting the LD_LIBRARY_PATH explicitly to `$(HOST_RPATH_DIR)` in these tests Makefiles resolves the issue. The `thumb-none-qemu` and `thumb-none-cortex-m` run-make tests do something similar.

cc: ``@jethrogb`` ``@vn971`` ``@mkaynov``

…v, r=Mark-Simulacrum

etc: add `RUSTC_BOOTSTRAP` to rust-analyzer config

Fixes the problem reported in rust-lang#112391 (comment)

fix(resolve): report unresolved imports firstly

Fixes rust-lang#81413

An easy fix, r? ``@petrochenkov``

…Simulacrum

Add regression test for `echo 'mod unknown;' | rustc -`

Closes rust-lang#65601

The bug is fixed since long ago, probably by rust-lang#69838 (see rust-lang#65601 (comment) for more details).
Add a regression test so we can close the issue.