The following changes affect multiple tools:
Restrictions on --fpu--fpu=VFPv2 or --fpu=VFPv3 are
only accepted if CPU architecture is greater than or equal to ARMv5TE.
This affects all tools that accept --fpu.
Note
The assembler assembles VFP instructions when you use the --unsafe option,
so do not use --fpu when using --unsafe.
If you use --fpu with --unsafe,
the assembler downgrades the reported architecture error to a warning.
The following --cpu choices are obsolete
and have been removed:
5
5E
5ExP
5EJ
5EWMMX2
5EWMMX
5TEx
ARM9E-S-rev0
ARM946E-S-rev0
ARM966E-S-rev0.
Backwards compatibility of RVCT v2.x, v3.x and v4.0 object
and library code is supported provided you have not built them with --apcs
/adsabi and use the RVCT v4.0 linker and C/C++ libraries.
Forward compatibility is not guaranteed.
Given these restrictions, ARM strongly recommends that you rebuild your entire project, including any user, or third-party supplied libraries, with RVCT v4.0 and later. This is to avoid any potential incompatibilities, and to take full advantage of the improved optimization, enhancements, and new features provided by RVCT v4.0 and later.
- Reference
Compiler Reference:
Linker Reference:
Assembler Reference:
PDF version