[build] Downgrade Linux sysroots from bullseye to stretch.

Change-Id: Ic53f86cd2c96626297f6059bdf3a04f451207439
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/254283
Commit-Queue: Alexander Thomas <athom@google.com>
Auto-Submit: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>

build/.gitignore

@@ -1,8 +1,8 @@
 # Generated file containing information about the VS toolchain on Windows
 win_toolchain.json
 
-# Pulled Debian bullseye sysroots
-linux/debian_bullseye_arm-sysroot
-linux/debian_bullseye_arm64-sysroot
-linux/debian_bullseye_amd64-sysroot
-linux/debian_bullseye_i386-sysroot
+# Pulled Debian stretch sysroots
+linux/debian_stretch_arm-sysroot
+linux/debian_stretch_arm64-sysroot
+linux/debian_stretch_amd64-sysroot
+linux/debian_stretch_i386-sysroot

build/config/sysroot.gni

@@ -17,16 +17,16 @@ declare_args() {
 if (is_linux && dart_use_debian_sysroot) {
   if (current_cpu == "x86") {
     target_sysroot =
-        rebase_path("//build/linux/debian_bullseye_i386-sysroot", root_build_dir)
+        rebase_path("//build/linux/debian_stretch_i386-sysroot", root_build_dir)
   } else if (current_cpu == "x64") {
     target_sysroot =
-        rebase_path("//build/linux/debian_bullseye_amd64-sysroot", root_build_dir)
+        rebase_path("//build/linux/debian_stretch_amd64-sysroot", root_build_dir)
   } else if (current_cpu == "arm") {
     target_sysroot =
-        rebase_path("//build/linux/debian_bullseye_arm-sysroot", root_build_dir)
+        rebase_path("//build/linux/debian_stretch_arm-sysroot", root_build_dir)
   } else if (current_cpu == "arm64") {
     target_sysroot =
-        rebase_path("//build/linux/debian_bullseye_arm64-sysroot", root_build_dir)
+        rebase_path("//build/linux/debian_stretch_arm64-sysroot", root_build_dir)
   } else {
     print("There is no Debian sysroot present for $current_cpu")
     assert(false)

build/linux/sysroot_scripts/install-sysroot.py

@@ -54,7 +54,7 @@
     'mips64': 'mips64el',
 }
 
-DEFAULT_TARGET_PLATFORM = 'bullseye'
+DEFAULT_TARGET_PLATFORM = 'stretch'
 
 
 class Error(Exception):
@@ -116,14 +116,15 @@ def GetSysrootDict(target_platform, target_arch):
 
 def InstallSysroot(target_platform, target_arch):
   sysroot_dict = GetSysrootDict(target_platform, target_arch)
+  revision = sysroot_dict['Revision']
   tarball_filename = sysroot_dict['Tarball']
   tarball_sha1sum = sysroot_dict['Sha1Sum']
   # TODO(thestig) Consider putting this elsewhere to avoid having to recreate
   # it on every build.
   linux_dir = os.path.dirname(SCRIPT_DIR)
   sysroot = os.path.join(linux_dir, sysroot_dict['SysrootDir'])
 
-  url = '%s/%s/%s/%s' % (URL_PREFIX, URL_PATH, tarball_sha1sum,
+  url = '%s/%s/%s/%s' % (URL_PREFIX, URL_PATH, revision,
                          tarball_filename)
 
   stamp = os.path.join(sysroot, '.stamp')

build/linux/sysroot_scripts/sysroots.json

@@ -1,37 +1,38 @@
 {
-    "bullseye_amd64": {
-        "Sha1Sum": "cb4fa34f1faddafb72cace35faf62a611f2ca7c9",
-        "SysrootDir": "debian_bullseye_amd64-sysroot",
-        "Tarball": "debian_bullseye_amd64_sysroot.tar.xz"
+    "stretch_amd64": {
+        "Revision": "1126d9b629c97385a503debac7a1b59e60a3ab1b",
+        "Sha1Sum": "a73bcd43fc4910afe264f730f7c06f5ef5c965cd",
+        "SysrootDir": "debian_stretch_amd64-sysroot",
+        "Tarball": "debian_stretch_amd64_sysroot.tar.xz"
     },
-    "bullseye_arm": {
-        "Sha1Sum": "a1084eba943f797a1c9aee8d5f8213ed680315a8",
-        "SysrootDir": "debian_bullseye_arm-sysroot",
-        "Tarball": "debian_bullseye_arm_sysroot.tar.xz"
+    "stretch_arm": {
+        "Revision": "1126d9b629c97385a503debac7a1b59e60a3ab1b",
+        "Sha1Sum": "7c5c22fbfca6fd825a63363bc906fbfa800d7f95",
+        "SysrootDir": "debian_stretch_arm-sysroot",
+        "Tarball": "debian_stretch_arm_sysroot.tar.xz"
     },
-    "bullseye_arm64": {
-        "Sha1Sum": "f00ece500aef0ff2a431a07de48bd3e1aa6d1caf",
-        "SysrootDir": "debian_bullseye_arm64-sysroot",
-        "Tarball": "debian_bullseye_arm64_sysroot.tar.xz"
+    "stretch_arm64": {
+        "Revision": "1126d9b629c97385a503debac7a1b59e60a3ab1b",
+        "Sha1Sum": "ab8063f2d9d6b777797653041851c3f9274a33af",
+        "SysrootDir": "debian_stretch_arm64-sysroot",
+        "Tarball": "debian_stretch_arm64_sysroot.tar.xz"
     },
-    "bullseye_armel": {
-        "Sha1Sum": "54ccf4898fe923b22141c9e21e80b455dec47ecf",
-        "SysrootDir": "debian_bullseye_armel-sysroot",
-        "Tarball": "debian_bullseye_armel_sysroot.tar.xz"
+    "stretch_i386": {
+        "Revision": "1126d9b629c97385a503debac7a1b59e60a3ab1b",
+        "Sha1Sum": "72ed2ce337bd40e8e7a89e5501b0b63050453d6c",
+        "SysrootDir": "debian_stretch_i386-sysroot",
+        "Tarball": "debian_stretch_i386_sysroot.tar.xz"
     },
-    "bullseye_i386": {
-        "Sha1Sum": "07bb72368889fea19a1f123aa11528f0d792121b",
-        "SysrootDir": "debian_bullseye_i386-sysroot",
-        "Tarball": "debian_bullseye_i386_sysroot.tar.xz"
+    "stretch_mips": {
+        "Revision": "1126d9b629c97385a503debac7a1b59e60a3ab1b",
+        "Sha1Sum": "fe5949ed3795aa64913a27389052637ea2629da3",
+        "SysrootDir": "debian_stretch_mips-sysroot",
+        "Tarball": "debian_stretch_mips_sysroot.tar.xz"
     },
-    "bullseye_mips": {
-        "Sha1Sum": "f19f07f7e62edbf837d6e7f173aea3f47110c2ba",
-        "SysrootDir": "debian_bullseye_mips-sysroot",
-        "Tarball": "debian_bullseye_mips_sysroot.tar.xz"
-    },
-    "bullseye_mips64el": {
-        "Sha1Sum": "3cfc9e7fe2d0cad3873bbce8fc3ffde510ed5638",
-        "SysrootDir": "debian_bullseye_mips64el-sysroot",
-        "Tarball": "debian_bullseye_mips64el_sysroot.tar.xz"
+    "stretch_mips64el": {
+        "Revision": "1126d9b629c97385a503debac7a1b59e60a3ab1b",
+        "Sha1Sum": "5d95b45a9633c3c874d3ab9326306b0e951f01f1",
+        "SysrootDir": "debian_stretch_mips64el-sysroot",
+        "Tarball": "debian_stretch_mips64el_sysroot.tar.xz"
     }
 }