The library filename identifies how the variant was built. The values for the fields of the filename, and the relevant build options are:
*root/prefix_arch[fpu][entrant][enum][wchar].endian
rootarmlibAn ARM C library. The
arm_linuxsubdirectory contains libraries used for building ARM Linux applications.cpplibAn ARM C++ library.
prefixarmlinuxLibraries used when building ARM Linux applications.
cISO C and C++ basic runtime support.
cppRogue Wave C++ library.
cpprtThe ARM C++ runtime libraries.
f--fpmode=ieee_fixed.IEEE-compliant library with a fixed rounding mode (round to nearest) and no inexact exceptions.
fj--fpmode=ieee_no_fenv.IEEE-compliant library with a fixed rounding mode (round to nearest) and no exceptions.
fz--fpmode=fastor--fpmode=std.Behaves like the
fjlibrary, but additionally flushes denormals and infinities to zero.This library behaves like the ARM VFP in Fast mode. This is the default.
g--fpmode=ieee_full.IEEE-compliant library with configurable rounding mode and all IEEE exceptions.
hCompiler support (helper) library.
mTranscendental math functions.
mcNon ISO C-compliant ISO C micro-library basic runtime support.
mfNon IEEE 754 floating-point compliant micro-library support.
arch4An ARM only library for use with ARMv4.
tAn ARM/Thumb interworking library for use with ARMv4T.
5An ARM/Thumb interworking library for use with ARMv5T and later.
wA Thumb only library for use with Cortex-M3.
pA Thumb only library for use with Cortex-M1 and Cortex-M0.
2A combined ARM and Thumb library for use with Cortex-A and Cortex-R series processor cores. You can prevent this library being selected using the linker option
--no_thumb2_library.
fpumA variant of the library for processors that have single-precision hardware floating-point only, such as Cortex-M4.
vUses VFP instruction set.
sSoft VFP.
Note
If neither
vnorsis present in a library name, the library provides no floating-point support.
entrantePosition-independent access to static data.
fFPIC addressing is enabled.
Note
If neither
enorfis present in a library name, the library uses position-dependent access to static data.
enumnCompatible with the compiler option,
--enum_is_int.
wcharuIndicates the size of
wchar_t.When present, the library is compatible with the compiler option,--wchar32. Otherwise, it is compatible with--wchar16
endianlLittle-endian.
bBig-endian.
For example:
*armlib/c_4.b *cpplib/cpprt_5f.l
Note
Not all variant/name combinations are valid. See the armlib and cpplib directories
for the libraries that are supplied with the ARM compilation tools.
The linker command-line option --info libraries provides
information on every library that is automatically selected for
the link stage.
See also- Concepts
Introducing the ARM Compiler toolchain:
- Reference
Linker Reference:
Compiler Reference:
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