multiply defined symbols with epicsAtomic

Bug #1425197 reported by mdavidsaver
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Fix Released

Bug Description

Do to inconsistency between C and C++ (and between C89 and C99), usage of the 'inline' qualifier by epicsAtomic* functions results in multiple definitions and linker failure.

The specific case is with GCC using -std=c99 or -std=gnu99 (the present default). With this configuration a strong public symbol (nm says 'T') is included in every C compilation unit where "epicsAtomic.h" is included. Linking then fails if more than once C compilation unit does this.

At present only callback.c in libdbCore includes epicsAtomic.h, so there is no failure. However, this bug is preventing further use of epicsAtomic.

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Revision history for this message
mdavidsaver (mdavidsaver) wrote :
Changed in epics-base:
status: New → Confirmed
importance: Undecided → High
assignee: nobody → mdavidsaver (mdavidsaver)
milestone: none → 3.16.branch
Andrew Johnson (anj)
no longer affects: epics-base/3.16
no longer affects: epics-base
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