RealView Compilation Tools Compiler Reference Guide - ARM ...

Compiler Command-line Options
Note
You do not have to specify --lower_rwpi, because this is the default.
/fpic
The main restrictions when compiling with /fpic are:
• If you use --apcs=/fpic, the compiler exports only functions and
data marked __declspec(dllexport).
• If you use --apcs=/fpic and --no_hide_all on the same command
line, the compiler ignores __declspec(dll*) and exports all extern
variables and functions. The compiler disables auto-inlining for
exported functions.
• If you use --apcs=/fpic in GNU mode, you must also use
--no_hide_all.
See also
• --[no_]hide_all on page 2-46
• --[no_]lower_ropi on page 2-59
• --[no_]lower_rwpi on page 2-59
• __declspec(dllexport) on page 4-24
• Writing reentrant and thread-safe code on page 2-4 in the Libraries Guide
• Veneer generation on page 3-20 in the Linker Guide
• Chapter 6 BPABI and System V Shared Libraries and Executables in the Linker
Guide
• Procedure Call Standard for the ARM architecture in
install_directory\Documentation\Specifications\....
2.1.5 --arm
This option configures the compiler to target the ARM instruction set.
Note
This option is not relevant for Thumb-only processors such as Cortex-M3.
Default
This is the default option for targets supporting the ARM instruction set.
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