[asterisk-bugs] [JIRA] (ASTERISK-27768) [patch] app_voicemail: Two variables may be uninitialized.

[Alexander Traud (JIRA)]

Alexander Traud created ASTERISK-27768:
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             Summary: [patch] app_voicemail: Two variables may be uninitialized.
                 Key: ASTERISK-27768
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27768
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Applications/app_voicemail
    Affects Versions: 15.3.0
            Reporter: Alexander Traud
            Severity: Minor
         Attachments: app_voicemail_init.patch

{{./configure && make}} and Gentoo Linux 17.0 (GCC 6.4.0) reports:
{code}warning: 'new' may be used uninitialized in this function [-Wmaybe-uninitialized]
warning: 'old' may be used uninitialized in this function [-Wmaybe-uninitialized]{code}This does not happen, when optimization is level 2 or lower, like off. This does not happen in the alternative compiler _clang_ or GCC 7. It is just GCC 6 with (Asterisk's default of) -O3.

Although the attached path fixes this, I am not happy with it. Therefore, it is not planned to submit that patch for review. Perhaps one day, I find the time to investigate what GCC is doing exactly. Especially because that happens only at -O3 and higher. -O2 and lower, everything is fine.

ASTERISK-27580 is similar because that happens at -O3 only as well. However on this platform, ASTERISK-27580 does not happen at all. Go figure!



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