Re: [Crash-utility] Extensions in C++

On June 28, 2010 03:16:32 pm Ratnam Tatavarty wrote: > Hi, > I am looking for a way to code/compile my Crash tool extension .so in CPP. > During compile step, I hit a name collision with "namespace" keyword upon > including defs.h. Does anyone try any CPP extensions before and if yes are > there any guidelines/suggestions about the required changes, compile > options? Any insights about Crash compatibility with CPP are greatly > appreciated. > > Build errors: > > defs.h:1917: error: expected identifier before ‘namespace’ > defs.h:1917: error: expected unqualified-id before ‘namespace’ > defs.h:1956: error: expected identifier before ‘namespace’ > ... > defs.h:2967: error: expected unqualified-id before ‘typename’ > defs.h:2967: error: abstract declarator ‘char*’ used as declaration > defs.h:2967: error: expected ‘;’ before ‘typename’ Hi Ratnam, I think that building extensions in C++ for crash should just follow the standard guidelines for linking C/C++ code together. This is relatively easy when main program is implemented in C++ - just put the needed headers in your C++ programs in extern "C" { ... } sections. But in our case it is different - the main program (crash) is implemented in C. To make C++ work properly, you need to call special initialization subroutines explicitly (e.g. those for ctors and dtors). This is very compiler and library dependent. I remember doing such things on HPUX with aCC. I think the same can be done on Linux with GCC/G++ but it will depend on compiler version. Regards, Alex -- ------------------------------------------------------------------ Alexandre Sidorenko email: asid(a)hp.com WTEC Linux Hewlett-Packard (Canada) ------------------------------------------------------------------