[gnome-continuous-yocto/gnomeostree-3.28-rocko: 4949/8267] package.bbclass: Add SHLIB detection support for mingw targets

[Emmanuele Bassi <ebassi src gnome org>]

commit f3881e63fd0cfca36aa66afcc2ce0a7cecb71a0a
Author: Nathan Rossi <nathan nathanrossi com>
Date:   Tue Feb 21 23:17:28 2017 +1000

    package.bbclass: Add SHLIB detection support for mingw targets
    
    Add support to detect dll files as shared objects as well as process
    Windows .dll and .exe files to determine the runtime libraries
    dependencies.
    
    This implementation is sufficient to detect and map runtime library
    dependencies between packages. And does not implement any version naming
    conventions that might apply for .dll files (e.g. lib*-x.dll).
    
    (From OE-Core rev: 7df031e1ffe409573753585ba2f1a82ff707ad7e)
    
    Signed-off-by: Nathan Rossi <nathan nathanrossi com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/classes/package.bbclass |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)
---
diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index d5c2d82..299ea12 100644
--- a/meta/classes/package.bbclass
+++ b/meta/classes/package.bbclass
@@ -1613,6 +1613,25 @@ python package_do_shlibs() {
                 if name and name not in needed[pkg]:
                      needed[pkg].append((name, file, []))
 
+    def mingw_dll(file, needed, sonames, renames, pkgver):
+        if not os.path.exists(file):
+            return
+
+        if file.endswith(".dll"):
+            # assume all dlls are shared objects provided by the package
+            sonames.append((os.path.basename(file), os.path.dirname(file).replace(pkgdest + "/" + pkg, ''), 
pkgver))
+
+        if (file.endswith(".dll") or file.endswith(".exe")):
+            # use objdump to search for "DLL Name: .*\.dll"
+            p = sub.Popen([d.expand("${HOST_PREFIX}objdump"), "-p", file], stdout = sub.PIPE, stderr= 
sub.PIPE)
+            out, err = p.communicate()
+            # process the output, grabbing all .dll names
+            if p.returncode == 0:
+                for m in re.finditer("DLL Name: (.*?\.dll)$", out.decode(), re.MULTILINE | re.IGNORECASE):
+                    dllname = m.group(1)
+                    if dllname:
+                        needed[pkg].append((dllname, file, []))
+
     if d.getVar('PACKAGE_SNAP_LIB_SYMLINKS') == "1":
         snap_symlinks = True
     else:
@@ -1644,6 +1663,8 @@ python package_do_shlibs() {
                     continue
                 if targetos == "darwin" or targetos == "darwin8":
                     darwin_so(file, needed, sonames, renames, pkgver)
+                elif targetos.startswith("mingw"):
+                    mingw_dll(file, needed, sonames, renames, pkgver)
                 elif os.access(file, os.X_OK) or lib_re.match(file):
                     ldconfig = linux_so(file, needed, sonames, renames, pkgver)
                     needs_ldconfig = needs_ldconfig or ldconfig