[bluez/bluez] 8814ac: build: Fix coverage target failing with stale .gcd...

[bluez/bluez] 8814ac: build: Fix coverage target failing with stale .gcd...

[Luiz Augusto von Dentz]

  Branch: refs/heads/master
  Home:   https://github.com/bluez/bluez
  Commit: 8814ac26fe656afcc9bd70f0eadcefc917e612a9
      https://github.com/bluez/bluez/commit/8814ac26fe656afcc9bd70f0eadcefc917e612a9
  Author: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
  Date:   2026-09-28 (Mon, 28 Sep 2026)

  Changed paths:
    M Makefile.am

  Log Message:
  -----------
  build: Fix coverage target failing with stale .gcda files

Coverage data from a previous build is not overwritten by 'make check'
for binaries that are not run by it, causing geninfo to fail with a
stamp mismatch once the objects are rebuilt. Zero the counters before
running the tests and mark the targets as phony since coverage/ is also
the output directory.

Assisted-by: Claude:claude-opus-5.5


  Commit: 86713777f91aa58dc5f475fa87770898f8bf1729
      https://github.com/bluez/bluez/commit/86713777f91aa58dc5f475fa87770898f8bf1729
  Author: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
  Date:   2026-09-28 (Mon, 28 Sep 2026)

  Changed paths:
    M Makefile.tools
    M tools/test-runner.c

  Log Message:
  -----------
  test-runner: Share build directory writable on coverage builds

The root filesystem is shared read-only with the guest so gcov is not
able to write the .gcda files of binaries run by test-runner, e.g. by
the functional tests. Share the build directory writable over 9p and
mount it over the read-only one when coverage is enabled.

Assisted-by: Claude:claude-opus-5.5


Compare: https://github.com/bluez/bluez/compare/73e934ba80b6...86713777f91a

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