🚀 go-pugleaf

I'm having difficulty in profiling within functions using gprof and MARK() on 
sparkstations. The macro in prof.h is as follows.
 
#define MARK(L) {\
                asm("   .reserve        .L., 4, \"data\", 4");\
                asm("M.L:");\
                asm("   sethi   %hi(.L.), %o0");\
                asm("   call    mcount");\
                asm("   or      %o0, %lo(.L.), %o0");\
                }
 
I can't see how this would work with gcc because the macro substitution will not
occur within "". I changed the macro as follows.
 
 
#define MARK(L) {\
                asm("   .reserve        ."#L"., 4, \"data\", 4");\
                asm("M."#L":");\
                asm("   sethi   %hi(."#L".), %o0");\
                asm("   call    mcount");\
                asm("   or      %o0, %lo(."#L".), %o0");\
                }
 
This modified macro does work for very simple programs, but causes Segmentation 
Faults in non-trivial programs.
 
Is there a MARK macro that does work with gcc and gprof ?
 
Regards,
        Pete Leaback.