glibc/gcc/libgcc-initial: Reimplement "deltask do_build"

From: Mingli Yu <[email protected]>

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 <[email protected]>

---
  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(-)

meta/recipes-core/glibc/glibc-initial.inc +5 -1

index b86e2fb2db..0dc32092a9 100644
@@ -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)
+}

meta/recipes-devtools/gcc/gcc-cross-initial.inc +5 -1

index 892b1dbf2f..55e22f62d3 100644
@@ -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)
+}

meta/recipes-devtools/gcc/libgcc-initial.inc +5 -1

index 950ad861e7..4c45b9a801 100644
@@ -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)
+}