Hi Simon,

On 11/8/22 00:28, Simon Glass wrote:
From: Tom Rini <tr...@konsulko.com>

Add a new flag to buildman so that we will in turn pass
BINMAN_ALLOW_MISSING=1 to 'make'. Make use of this flag in CI.

Allow the settings file to control this.

Cc: Rasmus Villemoes <rasmus.villem...@prevas.dk>
Cc: Simon Glass <s...@chromium.org>
Signed-off-by: Tom Rini <tr...@konsulko.com>
Signed-off-by: Simon Glass <s...@chromium.org>
---

(no changes since v3)


There were actually substantial changes between v3 and v4.

Changes in v3:
- Add tests docs and a settings-file option

  .azure-pipelines.yml            |  2 +-
  .gitlab-ci.yml                  |  6 +--
  tools/buildman/bsettings.py     | 16 ++++++
  tools/buildman/builder.py       |  5 +-
  tools/buildman/builderthread.py |  2 +
  tools/buildman/buildman.rst     | 43 +++++++++++++++
  tools/buildman/cmdline.py       |  6 +++
  tools/buildman/control.py       | 29 +++++++++-
  tools/buildman/func_test.py     | 96 +++++++++++++++++++++++++++++++--
  9 files changed, 196 insertions(+), 9 deletions(-)

diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index bda762451fd..665b5d2026f 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -553,7 +553,7 @@ stages:
            cat << "EOF" >> build.sh
            if [[ "${BUILDMAN}" != "" ]]; then
                ret=0;
-              tools/buildman/buildman -o /tmp -P -E -W ${BUILDMAN} ${OVERRIDE} 
|| ret=$?;
+              tools/buildman/buildman -o /tmp -PEWM ${BUILDMAN} ${OVERRIDE} || 
ret=$?;
                if [[ $ret -ne 0 ]]; then
                    tools/buildman/buildman -o /tmp -seP ${BUILDMAN};
                    exit $ret;
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6f4c34fc4a3..3deaeca1cdd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -81,7 +81,7 @@ build all 32bit ARM platforms:
    stage: world build
    script:
      - ret=0;
-      ./tools/buildman/buildman -o /tmp -P -E -W arm -x aarch64 || ret=$?;
+      ./tools/buildman/buildman -o /tmp -PEWM arm -x aarch64 || ret=$?;
        if [[ $ret -ne 0 ]]; then
          ./tools/buildman/buildman -o /tmp -seP;
          exit $ret;
@@ -93,7 +93,7 @@ build all 64bit ARM platforms:
      - virtualenv -p /usr/bin/python3 /tmp/venv
      - . /tmp/venv/bin/activate
      - ret=0;
-      ./tools/buildman/buildman -o /tmp -P -E -W aarch64 || ret=$?;
+      ./tools/buildman/buildman -o /tmp -PEWM aarch64 || ret=$?;
        if [[ $ret -ne 0 ]]; then
          ./tools/buildman/buildman -o /tmp -seP;
          exit $ret;
@@ -113,7 +113,7 @@ build all other platforms:
    stage: world build
    script:
      - ret=0;
-      ./tools/buildman/buildman -o /tmp -P -E -W -x arm,powerpc || ret=$?;
+      ./tools/buildman/buildman -o /tmp -PEWM -x arm,powerpc || ret=$?;
        if [[ $ret -ne 0 ]]; then
          ./tools/buildman/buildman -o /tmp -seP;
          exit $ret;
diff --git a/tools/buildman/bsettings.py b/tools/buildman/bsettings.py
index dcc200ea79d..9df87f53e49 100644
--- a/tools/buildman/bsettings.py
+++ b/tools/buildman/bsettings.py
@@ -5,6 +5,7 @@ import configparser
  import os
  import io
+config_fname = None

This seems unrelated?

  def Setup(fname=''):
      """Set up the buildman settings module by reading config files
@@ -46,6 +47,21 @@ def GetItems(section):
      except:
          raise
+def GetGlobalItem(name):

I would rename this to GetGlobalItemValue or something more explicit, it's not clear that you're returning the value of a key from its name.

+    """Get an items from the 'global' section of the config.
+
s/items/item/

+    Args:
+        name: name of item to retrieve
+
+    Returns:
+        str: Value of item, or None if not present
+    """
+    items = GetItems('global')
+    for item in items:
+        if item[0] == name:
+            return item[1]

I had to run an example myself to see why this was done this way. configparser returns tuples with (key, value).

You could simply do:
return settings.get('global', name, fallback=None)

+    return None
+
  def SetItem(section, tag, value):
      """Set an item and write it back to the settings file"""
      global settings
diff --git a/tools/buildman/builder.py b/tools/buildman/builder.py
index 76252b90792..c2a69027f88 100644
--- a/tools/buildman/builder.py
+++ b/tools/buildman/builder.py
@@ -252,7 +252,8 @@ class Builder:
                   mrproper=False, per_board_out_dir=False,
                   config_only=False, squash_config_y=False,
                   warnings_as_errors=False, work_in_output=False,
-                 test_thread_exceptions=False, adjust_cfg=None):
+                 test_thread_exceptions=False, adjust_cfg=None,
+                 allow_missing=False):
          """Create a new Builder object
Args:
@@ -290,6 +291,7 @@ class Builder:
                      ~C to disable C
                      C=val to set the value of C (val must have quotes if C is
                          a string Kconfig
+            allow_missing: Run build with BINMAN_ALLOW_MISSING=1
"""
          self.toolchains = toolchains
@@ -327,6 +329,7 @@ class Builder:
          self.config_filenames = BASE_CONFIG_FILENAMES
          self.work_in_output = work_in_output
          self.adjust_cfg = adjust_cfg
+        self.allow_missing = allow_missing
          self._ide = False
if not self.squash_config_y:
diff --git a/tools/buildman/builderthread.py b/tools/buildman/builderthread.py
index 065d836d68c..680efae02d7 100644
--- a/tools/buildman/builderthread.py
+++ b/tools/buildman/builderthread.py
@@ -253,6 +253,8 @@ class BuilderThread(threading.Thread):
                      args.extend(['-j', str(self.builder.num_jobs)])
                  if self.builder.warnings_as_errors:
                      args.append('KCFLAGS=-Werror')
+                if self.builder.allow_missing:
+                    args.append('BINMAN_ALLOW_MISSING=1')
                  config_args = ['%s_defconfig' % brd.target]
                  config_out = ''
                  args.extend(self.builder.toolchains.GetMakeArguments(brd))
diff --git a/tools/buildman/buildman.rst b/tools/buildman/buildman.rst
index 33ad6d9e2c9..dd1a2be27b1 100644
--- a/tools/buildman/buildman.rst
+++ b/tools/buildman/buildman.rst
@@ -913,6 +913,25 @@ also allows build flags to be passed to 'make'. It 
consists of several
  sections, with the section name in square brackets. Within each section are
  a set of (tag, value) pairs.
+global section

'[global]' section
to match how the other sections are shown? I don't think it is specific?

+    allow-missing
+        Indicates the policy to use for missing blobs. Note that the flags
+        --allow-missing (-M) and --no-allow-missing (--no-a) override these

Double-tick quote the arguments to highlight them (I also remember (maybe incorrectly) that two dashes are modified into something else than just two dashes when not highlighted?).

+        setting.
+
+        always
+           Run with -M by default.
+
+        multiple
+           Run with -M if more than one board is being built.
+
+        branch
+           Run with -M if a branch is being built.
+
+        Note that the last two can be given together::
+
+           allow-missing = multiple branch
+
  '[toolchain]' section
      This lists the available toolchains. The tag here doesn't matter, but
      make sure it is unique. The value is the path to the toolchain. Buildman
@@ -1140,6 +1159,30 @@ not cause the build to fail:
     buildman -o /tmp/build --board sandbox -wWI
+Support for binary blobs
+------------------------
+
+U-Boot is moving to using Binman (see :doc:`../develop/package/binman`) for
+dealing with the complexities of packaging U-Boot along with binary files from
+other projects. These are called 'external blobs' by Binman.
+
+Typically a missing external blob causes a build failure. For build testing of
+a lot of boards, or boards for which you do not have the blobs, you can use the
+-M flag to allow missing blobs. This marks the build as if it succeeded,
+although with warnings shown, including 'Some images are invalid'. If any 
boards
+fail in this way, buildman exits with status 101.
+
+To convert warnings to errors, use -E. To make buildman return success with
+these warnings, use -W.
+
+It is generally safe to default to enabling -M for all runs of buildman, so 
long
+as you check the exit code. To do this, add::
+
+   allow-missing = "always"
+
+to the top of the buildman_settings_ file.
+
+
  Changing the configuration
  --------------------------
diff --git a/tools/buildman/cmdline.py b/tools/buildman/cmdline.py
index b29c1eb5ee7..c485994e9fe 100644
--- a/tools/buildman/cmdline.py
+++ b/tools/buildman/cmdline.py
@@ -75,6 +75,12 @@ def ParseArgs():
            help='List available tool chains (use -v to see probing detail)')
      parser.add_option('-m', '--mrproper', action='store_true',
            default=False, help="Run 'make mrproper before reconfiguring")
+    parser.add_option(
+          '-M', '--allow-missing', action='store_true', default=False,
+          help='Tell binman to allow missing blobs and generate fake ones as 
needed'),
+    parser.add_option(
+          '--no-allow-missing', action='store_true', default=False,
+          help='Disable telling binman to allow missing blobs'),
      parser.add_option('-n', '--dry-run', action='store_true', dest='dry_run',
            default=False, help="Do a dry run (describe actions, but do 
nothing)")
      parser.add_option('-N', '--no-subdirs', action='store_true', 
dest='no_subdirs',
diff --git a/tools/buildman/control.py b/tools/buildman/control.py
index 377b580b253..b1a22cdfc14 100644
--- a/tools/buildman/control.py
+++ b/tools/buildman/control.py
@@ -111,6 +111,23 @@ def ShowToolchainPrefix(brds, toolchains):
      print(tc.GetEnvArgs(toolchain.VAR_CROSS_COMPILE))
      return None
+def get_allow_missing(opt_allow, opt_no_allow, num_selected, has_branch):
+    allow_missing = False
+    am_setting = bsettings.GetGlobalItem('allow-missing')
+    if am_setting:
+        if am_setting == 'always':
+            allow_missing = True
+        if 'multiple' in am_setting and num_selected > 1:
+            allow_missing = True
+        if 'branch' in am_setting and has_branch:
+            allow_missing = True
+
+    if opt_allow:
+        allow_missing = True
+    if opt_no_allow:
+        allow_missing = False
+    return allow_missing
+
  def DoBuildman(options, args, toolchains=None, make_func=None, brds=None,
                 clean_dir=False, test_thread_exceptions=False):
      """The main control code for buildman
@@ -305,6 +322,15 @@ def DoBuildman(options, args, toolchains=None, 
make_func=None, brds=None,
      if not gnu_make:
          sys.exit('GNU Make not found')
+ allow_missing = get_allow_missing(options.allow_missing,
+                                      options.no_allow_missing, len(selected),
+                                      options.branch)
+
+    if options.allow_missing:
+        allow_missing = True
+    if options.no_allow_missing:
+        allow_missing = False
+

This is already done in get_allow_missing so no need to be rundundant I think?

      # Create a new builder with the selected options.
      output_dir = options.output_dir
      if options.branch:
@@ -329,7 +355,8 @@ def DoBuildman(options, args, toolchains=None, 
make_func=None, brds=None,
              warnings_as_errors=options.warnings_as_errors,
              work_in_output=options.work_in_output,
              test_thread_exceptions=test_thread_exceptions,
-            adjust_cfg=adjust_cfg)
+            adjust_cfg=adjust_cfg,
+            allow_missing=allow_missing)
      builder.force_config_on_failure = not options.quick
      if make_func:
          builder.do_make = make_func
diff --git a/tools/buildman/func_test.py b/tools/buildman/func_test.py
index b4f3b46fcb1..32e305b8c59 100644
--- a/tools/buildman/func_test.py
+++ b/tools/buildman/func_test.py
@@ -22,6 +22,7 @@ from patman import tools
settings_data = '''
  # Buildman settings file
+[global]
[toolchain] @@ -205,13 +206,16 @@ class TestFunctional(unittest.TestCase): self._test_branch = TEST_BRANCH + # Set to True to report missing blobs
+        self._missing = False
+
          # Avoid sending any output and clear all terminal output
          terminal.set_print_test_mode()
          terminal.get_print_test_lines()
def tearDown(self):
          shutil.rmtree(self._base_dir)
-        #shutil.rmtree(self._output_dir)
+        shutil.rmtree(self._output_dir)

Is this actually related?

      def setupToolchains(self):
          self._toolchains = toolchain.Toolchains()
@@ -424,10 +428,21 @@ class TestFunctional(unittest.TestCase):
                      out_dir = arg[2:]
              fname = os.path.join(cwd or '', out_dir, 'u-boot')
              tools.write_file(fname, b'U-Boot')
-            if type(commit) is not str:
+
+            # Handle missing blobs
+            if self._missing:
+                if 'BINMAN_ALLOW_MISSING=1' in args:
+                    stderr = '''+Image 'main-section' is missing external 
blobs and is non-functional: intel-descriptor intel-ifwi intel-fsp-m 
intel-fsp-s intel-vbt
+Image 'main-section' has faked external blobs and is non-functional: 
descriptor.bin fsp_m.bin fsp_s.bin vbt.bin
+
+Some images are invalid'''
+                else:
+                    stderr = "binman: Filename 'fsp.bin' not found in input 
path"
+            elif type(commit) is not str:
                  stderr = self._error.get((brd.target, commit.sequence))
+
              if stderr:
-                return command.CommandResult(return_code=1, stderr=stderr)
+                return command.CommandResult(return_code=2, stderr=stderr)
              return command.CommandResult(return_code=0)
# Not handled, so abort
@@ -621,3 +636,78 @@ class TestFunctional(unittest.TestCase):
          self.assertIn(
              'Thread exception (use -T0 to run without threads): test 
exception',
              stdout.getvalue())
+
+    def testBlobs(self):
+        """Test handling of missing blobs"""
+        self._missing = True
+
+        board0_dir = os.path.join(self._output_dir, 'current', 'board0')
+        errfile = os.path.join(board0_dir, 'err')
+        logfile = os.path.join(board0_dir, 'log')
+
+        # We expect failure when there are missing blobs
+        result = self._RunControl('board0', '-o', self._output_dir)
+        self.assertEqual(100, result)
+        self.assertTrue(os.path.exists(os.path.join(board0_dir, 'done')))
+        self.assertTrue(os.path.exists(errfile))
+        self.assertIn(b"Filename 'fsp.bin' not found in input path",
+                      tools.read_file(errfile))
+


+        # Allow missing blobs - still failure but a different exit code
+        result = self._RunControl('board0', '-o', self._output_dir, '-M',
+                                  clean_dir=True)
+        self.assertEqual(101, result)
+        self.assertTrue(os.path.exists(errfile))
+        self.assertIn(b'Some images are invalid', tools.read_file(errfile))
+

I would have a separate test for this one.

+        # Allow missing blobs and ignore warnings
+        result = self._RunControl('board0', '-o', self._output_dir, '-MW')
+        self.assertEqual(0, result)
+        self.assertIn(b'Some images are invalid', tools.read_file(errfile))
+

Ditto.

Otherwise if there's a regression you don't know which one exactly easily.

+    def testBlobSettings(self):
+        # Test with no settings
+        self.assertEqual(False,
+                         control.get_allow_missing(False, False, 1, False))
+        self.assertEqual(True,
+                         control.get_allow_missing(True, False, 1, False))
+        self.assertEqual(False,
+                         control.get_allow_missing(True, True, 1, False))
+

Same here and the tests below.

Cheers,
Quentin

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