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authorJoseph Myers <joseph@codesourcery.com>2021-09-16 14:08:05 +0000
committerJoseph Myers <joseph@codesourcery.com>2021-09-16 14:08:05 +0000
commit876e51548cc5d96af5ea13febd0a1a75bfc04497 (patch)
treeee0b411ec29d3cf36edf5eb342f0f22bf837cafc
parentcb5088cfd3030cfe7ea875846d9a8623dcddbf4f (diff)
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Fix build-many-glibcs.py --strip for installed library renaming
The renaming of installed shared libraries to use the SONAME directly
rather than linking to a versioned name stopped build-many-glibcs.py
--strip (used to facilitate comparing binaries before and after
changes that aren't meant to change any generated code in installed
glibc shared libraries) from stripping most of the installed shared
libraries, because it stripped only the *.so names.  Fix it to strip
*.so* names instead and to detect the case of linker scripts using
grep instead of hardcoding particular files that are linker scripts.

Tested with build-many-glibcs.py --strip.
-rwxr-xr-xscripts/build-many-glibcs.py16
1 files changed, 7 insertions, 9 deletions
diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 54bef43429..258a1be27d 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -1553,15 +1553,13 @@ class GlibcPolicyForBuild(GlibcPolicyDefault):
 
     def extra_commands(self, cmdlist):
         if self.strip:
-            # Avoid picking up libc.so and libpthread.so, which are
-            # linker scripts stored in /lib on Hurd.  libc and
-            # libpthread are still stripped via their libc-X.YY.so
-            # implementation files.
-            find_command = (('find %s/lib* -name "*.so"'
-                             + r' \! -name libc.so \! -name libpthread.so')
-                            % self.installdir)
-            cmdlist.add_command('strip', ['sh', '-c', ('%s $(%s)' %
-                                  (self.strip, find_command))])
+            # Avoid stripping libc.so and libpthread.so, which are
+            # linker scripts stored in /lib on Hurd.
+            find_command = 'find %s/lib* -name "*.so*"' % self.installdir
+            cmdlist.add_command('strip', ['sh', '-c', (
+                'set -e; for f in $(%s); do '
+                'if ! head -c16 $f | grep -q "GNU ld script"; then %s $f; fi; '
+                'done' % (find_command, self.strip))])
         cmdlist.add_command('check', ['make', 'check'])
         cmdlist.add_command('save-logs', [self.save_logs], always_run=True)