[Valgrind-developers] tests, automake, and assembly language

[Vince W. <vi...@cs...>]

Hello

After a long delay I am trying to get my exp-bbv (SimPoint basic block 
vector plugin) suitable for review.

I'm having some trouble with automake and the tests I have.

The tests I have are pure assembly, and need to be assembled by the 
assembler, not by gcc.  This is because the bbv plugin depends on exact 
instruction counts, and different C compilers run a differing amount of 
code before getting to main().  So to have consistent results on different 
machines I need to skip the compiler.

In the Makefile.am file I can set
   CCAS = as
To have the assembler called instead of gcc.  Unfortunately though a lot 
of flags get passed to the assembler that it is unable to ignore.  You get 
something like the following, which doesn't work:
as -DHAVE_CONFIG_H -I. -I../../..  -I../../.. -I../../../include 
-I../../../coregrind -I../../../include -I../../../VEX/pub -DVGA_x86=1 
-DVGO_linux=1 -DVGP_x86_linux=1   -Wno-long-long -MT million.o -MD -MP -MF 
.deps/million.Tpo -c -o million.o million.S

I'd really just like it called as
    as  -o million.o million.S

A similar problem happens with linking.  I'd rather just something like
    ld  -o million million.o

Is it possible to do this with the current automake setup in Valgrind?

Thanks

Vince