Experimental Physics and
Industrial Control System

Gabriel Fedel via Core-talk <core-talk at aps.anl.gov> · Fri, 12 Mar 2021 09:18:20 -0000

Thank you Andrew for the explanations.


I've tried to solve the gdd warnings, but I haven't found a solution yet.
My first try was to use the copy method:

--- a/src/ca/legacy/gdd/gddI.h                                                  
+++ b/src/ca/legacy/gdd/gddI.h                                                  
@@ -114,7 +114,7 @@ inline void gdd::setStatSevr(aitInt16 stat, aitInt16 sevr)  
         { status.s.aitStat = stat; status.s.aitSevr = sevr; }                  
                                                                                
 inline gdd& gdd::operator=(const gdd& v)                                       
-       { memcpy(this,&v,sizeof(gdd)); return *this; }                          
+       {   this->copy(&v); return *this; }                                     
                                                                                
 inline int gdd::isScalar(void) const { return dimension()==0?1:0; }            
 inline int gdd::isContainer(void) const                                        


But with this change the code doesn't compile, and I don't know why. I got this:

make[3]: *** No rule to make target '../O.Common/gddApps.h', needed by '../../../../../include/gddApps.h'.  Stop.      
make[2]: *** [../../../../configure/RULES_ARCHS:58: install.linux-x86_64] Error 2                                      
make[1]: *** [../configure/RULES_DIRS:85: ca/legacy/gdd.install] Error 2                                               
make: *** [configure/RULES_DIRS:85: src.install] Error 2

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https://bugs.launchpad.net/bugs/1905159

Title:
  Fix warnings from recent compiler versions

Status in EPICS Base:
  Triaged

Bug description:
  Builds of EPICS Base using recent versions of gcc, clang and MSVC
  generate compiler warnings, which we try to minimize if possible. Some
  of these warnings can be prevented with suitable code modifications,
  although the code must still build on the older compilers and other
  architectures that we support.

  Both the 3.15 and 7.0 branches can be examined for warnings; fixes
  made on the 3.15 branch get propagated to the 7.0 branch during
  periodic up-merges, so there is no need to make the same changes to
  both branches. Some code only exists on one branch; for example the
  gdd module was unbundled after 3.15, and there are many new modules in
  7.0.

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System