Live apphost not being used by crossgen2 with source build #77667

Description

@ayakael

Description

.NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

/var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]

Reproduction Steps

Crossbuild from x64 to x86, crossgen2 build will fail.

Expected behavior

Crossgen2 should be able to use to live apphost built previously by runtime

Actual behavior

Build fails due to no apphost for that RID

Regression?

Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

Known Workarounds

None for now. I attempted to build runtime in two steps, to no avail:

ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost

Configuration

.NET 7.0.100-rtm.22519.39
Alpine Linux Edge
x64 to x86 crossbuild

Other information

No response

Metadata

Metadata

Assignees

No one assigned

    Type

    No type

    Projects

    No projects

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions

      , '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

      Live apphost not being used by crossgen2 with source build #77667

      Description

      @ayakael

      Description

      .NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

      /var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]
      

      Reproduction Steps

      Crossbuild from x64 to x86, crossgen2 build will fail.

      Expected behavior

      Crossgen2 should be able to use to live apphost built previously by runtime

      Actual behavior

      Build fails due to no apphost for that RID

      Regression?

      Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

      Known Workarounds

      None for now. I attempted to build runtime in two steps, to no avail:

      ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
      ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost
      

      Configuration

      .NET 7.0.100-rtm.22519.39
      Alpine Linux Edge
      x64 to x86 crossbuild

      Other information

      No response

      Metadata

      Metadata

      Assignees

      No one assigned

        Type

        No type

        Projects

        No projects

          Relationships

          None yet

          Development

          No branches or pull requests

          Issue actions

          , '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

          Live apphost not being used by crossgen2 with source build #77667

          Description

          @ayakael

          Description

          .NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

          /var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]
          

          Reproduction Steps

          Crossbuild from x64 to x86, crossgen2 build will fail.

          Expected behavior

          Crossgen2 should be able to use to live apphost built previously by runtime

          Actual behavior

          Build fails due to no apphost for that RID

          Regression?

          Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

          Known Workarounds

          None for now. I attempted to build runtime in two steps, to no avail:

          ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
          ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost
          

          Configuration

          .NET 7.0.100-rtm.22519.39
          Alpine Linux Edge
          x64 to x86 crossbuild

          Other information

          No response

          Metadata

          Metadata

          Assignees

          No one assigned

            Type

            No type

            Projects

            No projects

              Relationships

              None yet

              Development

              No branches or pull requests

              Issue actions

              , '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

              Live apphost not being used by crossgen2 with source build #77667

              Description

              @ayakael

              Description

              .NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

              /var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]
              

              Reproduction Steps

              Crossbuild from x64 to x86, crossgen2 build will fail.

              Expected behavior

              Crossgen2 should be able to use to live apphost built previously by runtime

              Actual behavior

              Build fails due to no apphost for that RID

              Regression?

              Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

              Known Workarounds

              None for now. I attempted to build runtime in two steps, to no avail:

              ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
              ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost
              

              Configuration

              .NET 7.0.100-rtm.22519.39
              Alpine Linux Edge
              x64 to x86 crossbuild

              Other information

              No response

              Metadata

              Metadata

              Assignees

              No one assigned

                Type

                No type

                Projects

                No projects

                  Relationships

                  None yet

                  Development

                  No branches or pull requests

                  Issue actions

                  , '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

                  Live apphost not being used by crossgen2 with source build #77667

                  Description

                  @ayakael

                  Description

                  .NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

                  /var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]
                  

                  Reproduction Steps

                  Crossbuild from x64 to x86, crossgen2 build will fail.

                  Expected behavior

                  Crossgen2 should be able to use to live apphost built previously by runtime

                  Actual behavior

                  Build fails due to no apphost for that RID

                  Regression?

                  Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

                  Known Workarounds

                  None for now. I attempted to build runtime in two steps, to no avail:

                  ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
                  ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost
                  

                  Configuration

                  .NET 7.0.100-rtm.22519.39
                  Alpine Linux Edge
                  x64 to x86 crossbuild

                  Other information

                  No response

                  Metadata

                  Metadata

                  Assignees

                  No one assigned

                    Type

                    No type

                    Projects

                    No projects

                      Relationships

                      None yet

                      Development

                      No branches or pull requests

                      Issue actions

                      , '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

                      Live apphost not being used by crossgen2 with source build #77667

                      Description

                      @ayakael

                      Description

                      .NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

                      /var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]
                      

                      Reproduction Steps

                      Crossbuild from x64 to x86, crossgen2 build will fail.

                      Expected behavior

                      Crossgen2 should be able to use to live apphost built previously by runtime

                      Actual behavior

                      Build fails due to no apphost for that RID

                      Regression?

                      Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

                      Known Workarounds

                      None for now. I attempted to build runtime in two steps, to no avail:

                      ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
                      ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost
                      

                      Configuration

                      .NET 7.0.100-rtm.22519.39
                      Alpine Linux Edge
                      x64 to x86 crossbuild

                      Other information

                      No response

                      Metadata

                      Metadata

                      Assignees

                      No one assigned

                        Type

                        No type

                        Projects

                        No projects

                          Relationships

                          None yet

                          Development

                          No branches or pull requests

                          Issue actions

                          , '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

                          Live apphost not being used by crossgen2 with source build #77667

                          Description

                          @ayakael

                          Description

                          .NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

                          /var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]
                          

                          Reproduction Steps

                          Crossbuild from x64 to x86, crossgen2 build will fail.

                          Expected behavior

                          Crossgen2 should be able to use to live apphost built previously by runtime

                          Actual behavior

                          Build fails due to no apphost for that RID

                          Regression?

                          Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

                          Known Workarounds

                          None for now. I attempted to build runtime in two steps, to no avail:

                          ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
                          ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost
                          

                          Configuration

                          .NET 7.0.100-rtm.22519.39
                          Alpine Linux Edge
                          x64 to x86 crossbuild

                          Other information

                          No response

                          Metadata

                          Metadata

                          Assignees

                          No one assigned

                            Type

                            No type

                            Projects

                            No projects

                              Relationships

                              None yet

                              Development

                              No branches or pull requests

                              Issue actions

                              , '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); } })(); })();
                              Skip to content

                              Live apphost not being used by crossgen2 with source build #77667

                              Description

                              @ayakael

                              Description

                              .NET 7 in source-build does not currently use NativeAOT. Thus, when building Crossgen2 from source on platforms without apphost in nuget feeds, build of runtime fails with:

                              /var/build/dotnet7/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(135,5): error NETSDK1084: There is no application host available for the specified RuntimeIdentifier 'linux-musl-x86'. [/var/build/dotnet7/testing/dotnet7-stage0/src/dotnet-e6dd91c290b808f971a1ac69c2fb29395bbf1051/src/runtime/src/coreclr/tools/aot/crossgen2/crossgen2.csproj]
                              

                              Reproduction Steps

                              Crossbuild from x64 to x86, crossgen2 build will fail.

                              Expected behavior

                              Crossgen2 should be able to use to live apphost built previously by runtime

                              Actual behavior

                              Build fails due to no apphost for that RID

                              Regression?

                              Per #7335 and #66866, there was a time when this was a non-issue. With move to NativeAOT, UseLiveBuiltDotNetHost was dropped, and this use-case seems to have been removed.

                              Known Workarounds

                              None for now. I attempted to build runtime in two steps, to no avail:

                              ROOTFS_DIR="$CBUILDROOT" ./build.sh $args -subset Clr.Native+Host.Native
                              ROOTFS_DIR="$CBUILDROOT" ./build.sh $args /p:AppHostSourcePath="$builddir"/src/runtime/artifacts/obj/linux-musl-$_dotnet_target.Release/apphost/standalone/apphost
                              

                              Configuration

                              .NET 7.0.100-rtm.22519.39
                              Alpine Linux Edge
                              x64 to x86 crossbuild

                              Other information

                              No response

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