Public bug reported:

The adequate test suite fails because one of the test binaries built
cannot be read by ld.so:

Inconsistency detected by ld.so: dl-lookup.c: 111: check_match:
Assertion `version->filename == NULL || ! _dl_name_match_p
(version->filename, map)' failed!


Test case is to go into tests/testpkg, run

 $PWD/debian/rules clean build

which runs:

cc -shared -Wl,--soname=libadequate-test-versionless.so.0 
-Wl,--version-script=verscript-global lib.c -o 
debian/tmp/libadequate-test-versionless.so.0
ln -sf libadequate-test-versionless.so.0 
debian/tmp/libadequate-test-versionless.so
cc undef.c -Ldebian/tmp -o debian/tmp/adequate-test-msvi 
-ladequate-test-versionless
cc -shared -Wl,--soname=libadequate-test-versionless.so.0 lib.c -o 
debian/tmp/libadequate-test-versionless.so.0


and then

 LD_LIBRARY_PATH=$PWD/debian/tmp/ ldd -r debian/tmp/adequate-test-msvi


fails with the error. Using gcc-7 7.3.0-15ubuntu2 works, but -16ubuntu2 fails. 
It's only the library that fails (adequate-test-msvi from 16u2 works fine with 
LD_LIBRARY_PATH set to 15u2 build, fails with 16u2 LD_LIBRARY_PATH).

Running diffoscope on the libraries (https://jak-
linux.org/lib.diff2.html) revealed that 2 sections are missing from the
library in 16u2: .gnu_version and .gnu_version_r.

** Affects: gcc-7 (Ubuntu)
     Importance: High
         Status: New

** Changed in: gcc-7 (Ubuntu)
   Importance: Undecided => High

** Summary changed:

- Regression gcc-7 7.3.0-15ubuntu2 => 7.3.0-16ubuntu2
+ produces broken binary: Inconsistency detected by ld.so [regression gcc-7 
7.3.0-15ubuntu2 => 7.3.0-16ubuntu2]

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https://bugs.launchpad.net/bugs/1764701

Title:
  produces broken binary: Inconsistency detected by ld.so [regression
  gcc-7 7.3.0-15ubuntu2 => 7.3.0-16ubuntu2]

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