Please ignore this patch as the indentation is TAB, will send V2 to use four space as indentation.

Thanks,
Mingli

On 2017年11月21日 16:00, mingli...@windriver.com wrote:
From: Mingli Yu <mingli...@windriver.com>

Previously, "deltask do_build" can result in the
dependency of do_build lost and can trigger a
race condition error as below when do_rm_work
is enabled.
=================================================
NOTE: recipe glibc-initial-2.26-r0: task do_fetch: Failed
ERROR: glibc-initial-2.26-r0 do_fetch: Function failed: extend_recipe_sysroot
The stack trace of python calls that resulted in this exception/failure was:
File: 'exec_python_func() autogenerated', lineno: 2, function: <module>
      0001:
  *** 0002:extend_recipe_sysroot(d)
      0003:
File: '$Prj/layers/oe-core/meta/classes/staging.bbclass', lineno: 410, 
function: extend_recipe_sysroot
      0406:    manifests = {}
      0407:    # All files that we're going to be installing, to find conflicts.
      0408:    fileset = {}
      0409:
  *** 0410:    for f in os.listdir(depdir):
      0411:        if not f.endswith(".complete"):
      0412:            continue
      0413:        f = depdir + "/" + f
      0414:        if os.path.islink(f) and not os.path.exists(f):
Exception: FileNotFoundError: [Errno 2] No such file or directory: 
'$Prj/build/tmp-glibc/work/cortexa8hf-neon-wrs-linux-gnueabi/glibc-initial/2.26-r0/recipe-sysroot-native/installeddeps'
=================================================

Rewrite the implementation of "deltask do_build" to save
the dependency before deleting do_build task to avoid the
race condition.

[YOCTO #12365]

Signed-off-by: Mingli Yu <mingli...@windriver.com>
---
  meta/recipes-core/glibc/glibc-initial.inc       | 6 +++++-
  meta/recipes-devtools/gcc/gcc-cross-initial.inc | 6 +++++-
  meta/recipes-devtools/gcc/libgcc-initial.inc    | 6 +++++-
  3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/meta/recipes-core/glibc/glibc-initial.inc 
b/meta/recipes-core/glibc/glibc-initial.inc
index b86e2fb2db..4390b6dfca 100644
--- a/meta/recipes-core/glibc/glibc-initial.inc
+++ b/meta/recipes-core/glibc/glibc-initial.inc
@@ -54,4 +54,8 @@ do_siteconfig () {
  inherit nopackages

  # We really only want this built by things that need it, not any recrdeptask
-deltask do_build
+python () {
+       if bb.data.inherits_class('rm_work', d):
+               bb.build.exec_func("inject_rm_work", d)
+       bb.build.deltask('do_build', d)
+}
diff --git a/meta/recipes-devtools/gcc/gcc-cross-initial.inc 
b/meta/recipes-devtools/gcc/gcc-cross-initial.inc
index 892b1dbf2f..6c0b2eff86 100644
--- a/meta/recipes-devtools/gcc/gcc-cross-initial.inc
+++ b/meta/recipes-devtools/gcc/gcc-cross-initial.inc
@@ -86,4 +86,8 @@ COMPILERINITIAL = "-initial"


  # We really only want this built by things that need it, not any recrdeptask
-deltask do_build
+python () {
+       if bb.data.inherits_class('rm_work', d):
+               bb.build.exec_func("inject_rm_work", d)
+       bb.build.deltask('do_build', d)
+}
diff --git a/meta/recipes-devtools/gcc/libgcc-initial.inc 
b/meta/recipes-devtools/gcc/libgcc-initial.inc
index 950ad861e7..cef8257052 100644
--- a/meta/recipes-devtools/gcc/libgcc-initial.inc
+++ b/meta/recipes-devtools/gcc/libgcc-initial.inc
@@ -17,4 +17,8 @@ COMPILERINITIAL = "-initial"
  inherit nopackages

  # We really only want this built by things that need it, not any recrdeptask
-deltask do_build
+python () {
+       if bb.data.inherits_class('rm_work', d):
+               bb.build.exec_func("inject_rm_work", d)
+       bb.build.deltask('do_build', d)
+}

--
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