Profiling the shared libraries w/ native compilation

Question

Sorry for cross posting, I was told this forum is more appropriate:
Status quo
Using Oracle 10 native compilation works very well. However I would like to gain additional speed using profile-based optimization:
In general it is a three-step process:
1. Instrumentation: Compile the program to prepare it for profile
collection.
cc Oprofile=collect O2 -c sample.c
cc -o sample.exe Oprofile=collect O2 sample.o
2. Data collection: Run the program with representative input(s) to
collect statistics.
sample.exe < input.file1
sample.exe < input.file2
3. Optimization: Recompile to optimize based on profile data.
cc Oprofile=use O2 -c sample.c
cc -o sample.exe Oprofile=use O2 sample.o
As I have only shared libraries but no executables I have to define SHLIB_FLOW_DATA:
To profile shared libraries, you must set the environment variable SHLIB_FLOW_DATA to the file that receives profile data. Unlike FLOW_DATA, SHLIB_FLOW_DATA has no default output file. If SHLIB_FLOW_DATA is not set, profile data is not collected. This allows you to activate or suspend the profiling of instrumented shared libraries.
Note that you could set SHLIB_FLOW_DATA to flow.data which is the same file as the default setting for FLOW_DATA. But, again, profile data will not be collected from shared libraries unless you explicitly set SHLIB_FLOW_DATA to some output file.
Question How and where can I set this variable for native compilation?
The problem is: whatever I tried in step 3. +Oprofile=use it always complains it can not find the profile statistics and does not compile.
Any help is appreciated very much!
Best regards!

Answer 1

This forum is for installation issues, I guess you get better help here:
Oracle Call Interface (OCI)
Werner