RealView Compilation Tools - ARM Information Center

Compiler Command-line Options
Usage
After function entry and before function exit, the following profiling functions are
called with the address of the current function and its call site:
void __cyg_profile_func_enter(void *current_func, void *callsite);
void __cyg_profile_func_exit(void *current_func, void *callsite);
Restrictions
You must provide definitions of __cyg_profile_func_enter() and
__cyg_profile_func_exit().
It is necessary to explicitly mark __cyg_profile_func_enter() and
__cyg_profile_func_exit() with __attribute__((no_instrument_function)).
See also
• __attribute__((no_instrument_function)) on page 4-35.
2.1.82 --gnu_version=version
This option attempts to make the compiler compatible with a particular version of GCC.
Syntax
--gnu_version=version
Where version is a decimal number denoting the version of GCC that you are
attempting to make the compiler compatible with.
Mode
This option is for when GNU compatibility mode is being used.
Usage
This option is for expert use. It is provided for dealing with legacy code. You are not
normally required to use it.
Default
In RVCT v4.0, the default is 40200. This corresponds to GCC version 4.2.0.
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