staging: Add extra hash handling code

Target build output, stored in do_populate_sysroot or do_package can depend
not only upon direct dependencies but also indirect ones. A good example is
linux-libc-headers. The toolchain depends on this but most target recipes do
not. There are some headers which are not used by the toolchain build and do
not change the toolchain task output, hence the task hashes can change without
changing the sysroot output of that recipe yet they can influence others.

A specific example is rtc.h which can change rtcwake.c in util-linux but is not
used in the glibc or gcc build. To account for this, we need to account for the
populate_sysroot hashes in the task output hashes.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index 17dcf4cc175428c0430b1547dd72110025698425..fd9acbab9b46b1d13aa477b598c1f8bf8b8f43d8 100644 (file)
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -94,7 +94,7 @@ SSTATE_ARCHS[vardepsexclude] = "ORIGNATIVELSBSTRING"
 
 SSTATE_MANMACH ?= "${SSTATE_PKGARCH}"
 
-SSTATECREATEFUNCS = "sstate_hardcode_path"
+SSTATECREATEFUNCS += "sstate_hardcode_path"
 SSTATECREATEFUNCS[vardeps] = "SSTATE_SCAN_FILES"
 SSTATEPOSTCREATEFUNCS = ""
 SSTATEPREINSTFUNCS = ""

diff --git a/meta/classes/staging.bbclass b/meta/classes/staging.bbclass
index 25f77c77350fc6f7660277a3e98942fcac5344ac..b8a14ff02ed5170c348fd571949165073ad8dbeb 100644 (file)
--- a/meta/classes/staging.bbclass
+++ b/meta/classes/staging.bbclass
@@ -624,3 +624,36 @@ python staging_taskhandler() {
 }
 staging_taskhandler[eventmask] = "bb.event.RecipeTaskPreProcess"
 addhandler staging_taskhandler
+
+
+#
+# Target build output, stored in do_populate_sysroot or do_package can depend
+# not only upon direct dependencies but also indirect ones. A good example is
+# linux-libc-headers. The toolchain depends on this but most target recipes do
+# not. There are some headers which are not used by the toolchain build and do
+# not change the toolchain task output, hence the task hashes can change without
+# changing the sysroot output of that recipe yet they can influence others.
+#
+# A specific example is rtc.h which can change rtcwake.c in util-linux but is not
+# used in the glibc or gcc build. To account for this, we need to account for the
+# populate_sysroot hashes in the task output hashes.
+#
+python target_add_sysroot_deps () {
+    current_task = "do_" + d.getVar("BB_CURRENTTASK")
+    if current_task not in ["do_populate_sysroot", "do_package"]:
+        return
+
+    pn = d.getVar("PN")
+    if pn.endswith("-native"):
+        return
+
+    taskdepdata = d.getVar("BB_TASKDEPDATA", False)
+    deps = {}
+    for dep in taskdepdata.values():
+        if dep[1] == "do_populate_sysroot" and not dep[0].endswith(("-native", "-initial")) and "-cross-" not in dep[0]:
+            deps[dep[0]] = dep[6]
+
+    d.setVar("HASHEQUIV_EXTRA_SIGDATA", "\n".join("%s: %s" % (k, deps[k]) for k in sorted(deps.keys())))
+}
+SSTATECREATEFUNCS += "target_add_sysroot_deps"
+