Enable test builds with --bootstrap - #127909

Merged
akoeplinger merged 13 commits into
dotnet:mainfrom
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged

Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom
am11:feature/tests-build-with-bootstrap

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Fixes#115622

@github-actionsgithub-actionsBot added the area-Infrastructure-coreclr Only use for closed issues label May 7, 2026
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For community platforms, this is the cross-build workflow for runtime development/testing:

os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap

cc:
riscv64: @clamp03, @dotnet/samsung
loongarch64: @LuckyXu-HF, @shushanhf
illumos: @gwr
FreeBSD: @Thefrank, @sec
Haiku: @trungnt2910
OpenBSD: @sethjackson

@am11
am11 requested a review from jkoritzinskyMay 7, 2026 12:38
@jkotas

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Update PR title to match the content?

@am11am11 changed the title Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
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am11 commented May 7, 2026

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Update PR title to match the content?

Ah, it somehow used cached title from my previous PR.

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am11force-pushed the feature/tests-build-with-bootstrap branch from f6b1128 to f6b70d2CompareMay 7, 2026 23:06
@Thefrank

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So if I am reading this correctly, after this PR, I can:

This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.

@am11

am11 commented May 8, 2026•
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Yes, it exists, e.g. in the build container:

$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true

from host:

# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>

For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh

The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.

janvorli pushed a commit that referenced this pull request May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
@jkotasjkotas added area-Infrastructure and removed area-Infrastructure-coreclr Only use for closed issues labels May 24, 2026
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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!

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LGTM, I just have few minor questions. Thank you!

Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
@akoeplinger
akoeplinger merged commit 185fbc3 into dotnet:mainMay 29, 2026
190 checks passed
@am11
am11 deleted the feature/tests-build-with-bootstrap branch May 29, 2026 18:31
@dotnet-maestrodotnet-maestroBot mentioned this pull request May 30, 2026
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bootstrap: libs.tests subsets fails

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@am11@jkotas@Thefrank@akoeplinger@janvorli
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
Enable test builds with --bootstrap - #127909
Merged
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged
Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
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May 7, 2026

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Fixes#115622
@github-actionsgithub-actionsBot
added
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For community platforms, this is the cross-build workflow for runtime development/testing:
os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap
cc:

riscv64: @clamp03, @dotnet/samsung

loongarch64: @LuckyXu-HF, @shushanhf

illumos: @gwr

FreeBSD: @Thefrank, @sec

Haiku: @trungnt2910

OpenBSD: @sethjackson
@am11
am11
requested a review
from jkoritzinskyMay 7, 2026 12:38
@jkotas
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May 7, 2026

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Update PR title to match the content?
@am11am11
changed the title
Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
@am11
am11
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May 7, 2026

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Update PR title to match the content?
Ah, it somehow used cached title from my previous PR.
@am11am11
mentioned this pull request
May 7, 2026
 Merged


This was referenced May 7, 2026

Open


Open

@am11
am11force-pushed
the
feature/tests-build-with-bootstrap
branch
from
f6b1128 to
f6b70d2CompareMay 7, 2026 23:06
@Thefrank
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May 8, 2026

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So if I am reading this correctly, after this PR, I can:
This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.
@am11
am11
commented
May 8, 2026•

edited

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Yes, it exists, e.g. in the build container:
$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true
from host:
# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh
The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.
janvorli pushed a commit
that referenced
this pull request
May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!
janvorli
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LGTM, I just have few minor questions. Thank you!
Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
@akoeplinger
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merged commit 185fbc3
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bootstrap: libs.tests subsets fails


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@am11@jkotas@Thefrank@akoeplinger@janvorli

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Enable test builds with --bootstrap - #127909
Merged
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged
Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
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@am11
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May 7, 2026

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Fixes#115622
@github-actionsgithub-actionsBot
added
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For community platforms, this is the cross-build workflow for runtime development/testing:
os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap
cc:

riscv64: @clamp03, @dotnet/samsung

loongarch64: @LuckyXu-HF, @shushanhf

illumos: @gwr

FreeBSD: @Thefrank, @sec

Haiku: @trungnt2910

OpenBSD: @sethjackson
@am11
am11
requested a review
from jkoritzinskyMay 7, 2026 12:38
@jkotas
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May 7, 2026

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Update PR title to match the content?
@am11am11
changed the title
Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
@am11
am11
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May 7, 2026

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Update PR title to match the content?
Ah, it somehow used cached title from my previous PR.
@am11am11
mentioned this pull request
May 7, 2026
 Merged


This was referenced May 7, 2026

Open


Open

@am11
am11force-pushed
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feature/tests-build-with-bootstrap
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f6b1128 to
f6b70d2CompareMay 7, 2026 23:06
@Thefrank
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May 8, 2026

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So if I am reading this correctly, after this PR, I can:
This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.
@am11
am11
commented
May 8, 2026•

edited

Loading

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MemberAuthor
Yes, it exists, e.g. in the build container:
$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true
from host:
# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh
The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.
janvorli pushed a commit
that referenced
this pull request
May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!
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LGTM, I just have few minor questions. Thank you!
Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
@akoeplinger
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merged commit 185fbc3
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Enable test builds with --bootstrap - #127909
Merged
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged
Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
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Fixes#115622
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For community platforms, this is the cross-build workflow for runtime development/testing:
os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap
cc:

riscv64: @clamp03, @dotnet/samsung

loongarch64: @LuckyXu-HF, @shushanhf

illumos: @gwr

FreeBSD: @Thefrank, @sec

Haiku: @trungnt2910

OpenBSD: @sethjackson
@am11
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requested a review
from jkoritzinskyMay 7, 2026 12:38
@jkotas
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Update PR title to match the content?
@am11am11
changed the title
Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
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Update PR title to match the content?
Ah, it somehow used cached title from my previous PR.
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This was referenced May 7, 2026

Open


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@Thefrank
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May 8, 2026

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So if I am reading this correctly, after this PR, I can:
This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.
@am11
am11
commented
May 8, 2026•

edited

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Yes, it exists, e.g. in the build container:
$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true
from host:
# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh
The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.
janvorli pushed a commit
that referenced
this pull request
May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
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May 29, 2026

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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!
janvorli
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approved these changes
May 29, 2026
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LGTM, I just have few minor questions. Thank you!
Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
@akoeplinger
akoeplinger
merged commit 185fbc3
into
dotnet:mainMay 29, 2026

190 checks passed

@am11
am11
deleted the

feature/tests-build-with-bootstrap

branch
May 29, 2026 18:31
@dotnet-maestrodotnet-maestroBot
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added this to the 11.0-preview6 milestone
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@akoeplingerakoeplingerakoeplinger approved these changes
@janvorlijanvorlijanvorli approved these changes
@jkoritzinskyjkoritzinskyAwaiting requested review from jkoritzinsky

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Status: Done


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bootstrap: libs.tests subsets fails


5 participants

@am11@jkotas@Thefrank@akoeplinger@janvorli

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
Enable test builds with --bootstrap - #127909
Merged
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged
Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
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Fixes#115622
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For community platforms, this is the cross-build workflow for runtime development/testing:
os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap
cc:

riscv64: @clamp03, @dotnet/samsung

loongarch64: @LuckyXu-HF, @shushanhf

illumos: @gwr

FreeBSD: @Thefrank, @sec

Haiku: @trungnt2910

OpenBSD: @sethjackson
@am11
am11
requested a review
from jkoritzinskyMay 7, 2026 12:38
@jkotas
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May 7, 2026

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Update PR title to match the content?
@am11am11
changed the title
Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
@am11
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Update PR title to match the content?
Ah, it somehow used cached title from my previous PR.
@am11am11
mentioned this pull request
May 7, 2026
 Merged


This was referenced May 7, 2026

Open


Open

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am11force-pushed
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from
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@Thefrank
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May 8, 2026

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So if I am reading this correctly, after this PR, I can:
This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.
@am11
am11
commented
May 8, 2026•

edited

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Yes, it exists, e.g. in the build container:
$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true
from host:
# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh
The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.
janvorli pushed a commit
that referenced
this pull request
May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!
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LGTM, I just have few minor questions. Thank you!
Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
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bootstrap: libs.tests subsets fails


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@am11@jkotas@Thefrank@akoeplinger@janvorli

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Enable test builds with --bootstrap - #127909
Merged
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged
Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
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Fixes#115622
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For community platforms, this is the cross-build workflow for runtime development/testing:
os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap
cc:

riscv64: @clamp03, @dotnet/samsung

loongarch64: @LuckyXu-HF, @shushanhf

illumos: @gwr

FreeBSD: @Thefrank, @sec

Haiku: @trungnt2910

OpenBSD: @sethjackson
@am11
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from jkoritzinskyMay 7, 2026 12:38
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Update PR title to match the content?
@am11am11
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Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
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Update PR title to match the content?
Ah, it somehow used cached title from my previous PR.
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@Thefrank
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So if I am reading this correctly, after this PR, I can:
This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.
@am11
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May 8, 2026•

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Yes, it exists, e.g. in the build container:
$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true
from host:
# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh
The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.
janvorli pushed a commit
that referenced
this pull request
May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!
janvorli
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LGTM, I just have few minor questions. Thank you!
Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
@akoeplinger
akoeplinger
merged commit 185fbc3
into
dotnet:mainMay 29, 2026

190 checks passed

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deleted the

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bootstrap: libs.tests subsets fails


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@am11@jkotas@Thefrank@akoeplinger@janvorli

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Enable test builds with --bootstrap - #127909
Merged
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged
Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
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Fixes#115622
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For community platforms, this is the cross-build workflow for runtime development/testing:
os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap
cc:

riscv64: @clamp03, @dotnet/samsung

loongarch64: @LuckyXu-HF, @shushanhf

illumos: @gwr

FreeBSD: @Thefrank, @sec

Haiku: @trungnt2910

OpenBSD: @sethjackson
@am11
am11
requested a review
from jkoritzinskyMay 7, 2026 12:38
@jkotas
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Update PR title to match the content?
@am11am11
changed the title
Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
@am11
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May 7, 2026

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Update PR title to match the content?
Ah, it somehow used cached title from my previous PR.
@am11am11
mentioned this pull request
May 7, 2026
 Merged


This was referenced May 7, 2026

Open


Open

@am11
am11force-pushed
the
feature/tests-build-with-bootstrap
branch
from
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f6b70d2CompareMay 7, 2026 23:06
@Thefrank
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May 8, 2026

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So if I am reading this correctly, after this PR, I can:
This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.
@am11
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commented
May 8, 2026•

edited

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Yes, it exists, e.g. in the build container:
$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true
from host:
# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh
The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.
janvorli pushed a commit
that referenced
this pull request
May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
@jkotasjkotas
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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!
janvorli
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May 29, 2026
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LGTM, I just have few minor questions. Thank you!
Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
@akoeplinger
akoeplinger
merged commit 185fbc3
into
dotnet:mainMay 29, 2026

190 checks passed

@am11
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deleted the

feature/tests-build-with-bootstrap

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May 29, 2026 18:31
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@akoeplingerakoeplingerakoeplinger approved these changes
@janvorlijanvorlijanvorli approved these changes
@jkoritzinskyjkoritzinskyAwaiting requested review from jkoritzinsky

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bootstrap: libs.tests subsets fails


5 participants

@am11@jkotas@Thefrank@akoeplinger@janvorli

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Enable test builds with --bootstrap - #127909
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akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
May 29, 2026
Merged
Enable test builds with --bootstrap#127909
akoeplinger merged 13 commits into
dotnet:mainfrom 
am11:feature/tests-build-with-bootstrap
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Fixes#115622
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For community platforms, this is the cross-build workflow for runtime development/testing:
os=linux
arch=riscv64
# ROOTFS_DIR is set# cross-build product, --bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
# for rebuild (e.g. after editing code), --use-bootstrap
./build.sh clr+libs --cross --arch $arch --os $os --use-bootstrap
# runtime tests cross-build, --use-bootstrap
src/tests/build.sh -cross -$arch -$os -p:LibrariesConfiguration=Debug --use-bootstrap
# libraries tests cross-build, --use-bootstrap
./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap
cc:

riscv64: @clamp03, @dotnet/samsung

loongarch64: @LuckyXu-HF, @shushanhf

illumos: @gwr

FreeBSD: @Thefrank, @sec

Haiku: @trungnt2910

OpenBSD: @sethjackson
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Update PR title to match the content?
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Inline remaining usages of OpenProcess on UnixEnable test builds with --bootstrapMay 7, 2026
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Update PR title to match the content?
Ah, it somehow used cached title from my previous PR.
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So if I am reading this correctly, after this PR, I can:
This is pretty awesome. I gave up trying to do nightly runtime builds / tests more than a year ago because it was such a hassle natively.
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Yes, it exists, e.g. in the build container:
$ docker run --rm -v$(pwd):/runtime -w /runtime -e ROOTFS_DIR=/crossrootfs/<xxx> -it <container-urn>
$ os=<yyy>; arch=<xxx>;
$ ./build.sh clr+libs --cross --arch $arch --os $os --bootstrap
$ ./build.sh libs.tests --cross --arch $arch --os $os --use-bootstrap -p:ArchiveTests=true
from host:
# pack and upload testhost to the machine
$ tar -czf testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
$ scp testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz $TargetMachine:/tmp
# copy tests to the machine
$ scp artifacts/helix/tests/linux.AnyCPU.Debug/System.Text.RegularExpressions.Unit.Tests.zip $TargetMachine:/tmp
# usage
$ ssh $TargetMachine
$ mkdir testhost
$ tar -xzf /tmp/testhost_net11.0-<yyy>-Debug-<xxx>.tar.gz -C testhost
$ mkdir regex-tests
$ cd$_
$ unzip System.Text.RegularExpressions.Unit.Tests.zip
$ ./RunTests.sh --runtime-path ~/testhost/artifacts/bin/testhost/net11.0-<yyy>-Debug-<xxx>
For runtime tests, after the build, just pack and upload artifacts/tests/coreclr/<yyy>.<xxx>.Debug to remove machine and after extraction, and then e.g. to run interpreter tests: CORE_ROOT=$(pwd)/artifacts/tests/coreclr/<yyy>.<xxx>.Debug/Tests/Core_Root DOTNET_TieredCompilation=0 artifacts/tests/coreclr/<yyy>.<xxx>.Debug/JIT/Interpreter/InterpreterTester/InterpreterTester.sh
The only thing which doesn't work in general (unrelated to bootstrap) is building / packing individual library tests. e.g. the zip file generated by ./dotnet.sh build -p:UseBootstrap=true -p:ArchiveTests=true -p:TargetOS=$os -p:TargetArchitecture=$arch -p:CrossBuild=true src/libraries/System.Formats.Nrbf/tests misses xunit.console.runtimeconfig.json etc. so it's unusble. Perhaps we need to pass more properties? I just built the. whole libs.tests subset which is exercised in the CI.
janvorli pushed a commit
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May 12, 2026
@am11
Apply fixes for coreclr-interp on linux-riscv64 (#127919)
ec58491
First time we ran the tests (with
#127909) and found issues with
interpreter tests.
1. clang-21 defaults to rvv baseline, previously clang-18 was defaulting
to rv64gc; so we need to pin to our baseline for runtime binaries. This
program helped figuring out SIGILL:
```sh
$ cat riscv_default_probe.c #if defined(__riscv_v)
#error At RVV (__riscv_v)
#elif defined(__riscv_b)
#error At Bitmanip (__riscv_b)
#elif defined(__riscv_zfa)
#error At Zfa
#elif defined(__riscv_zfh)
#error At Zfh
#elif defined(__riscv_d)
#error At D
#elif defined(__riscv_f)
#error At F
#elif defined(__riscv_c)
#error At C
#elif defined(__riscv_m)
#error At M
#elif defined(__riscv_a)
#error At A
#elif defined(__riscv_i)
#error At I
#else
#error At unknown baseline
#endif
$ clang-21 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:2:2: error: At RVV (__riscv_v)
2 | #error At RVV (__riscv_v)
| ^
# vs.
$ clang-18 --target=riscv64-unknown-linux-gnu -c riscv_default_probe.c
riscv_default_probe.c:10:2: error: At D
10 | #error At D
| ^
```
2. Remove negative sign from prolog offset; it was growing in opposite
direction.
3. Remove an invalid assert in the RISC-V/LoongArch return
classification path. After fixing offset issue, tests progressed to
`TestCallingConvention2Rev` and then tripped a debug-only check that is
AMD64-specific and not applicable on these targets. Return
classification here is already handled by FP-struct info plus size-based
integer mapping, so removing the assert preserves intended behavior and
unblocks the interpreter calling-convention tests.
Fixes#127860
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@akoeplinger, @janvorli, it looks like Jeremy is not available, could you please sign off and merge this PR? I am carrying this patch across multiple branches. It fixes testing on community platforms which regressed since the --bootstrap work. Thanks!
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LGTM, I just have few minor questions. Thank you!
Comment threadsrc/libraries/tests.proj
Comment threadsrc/tests/build.proj
@akoeplinger
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@akoeplingerakoeplingerakoeplinger approved these changes
@janvorlijanvorlijanvorli approved these changes
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bootstrap: libs.tests subsets fails


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