9.31.1 RX Options
The Renesas RX port of as
has a few target specfic
command line options:
-m32bit-doubles
- This option controls the ABI and indicates to use a 32-bit float ABI.
It has no effect on the assembled instructions, but it does influence
the behaviour of the `.double' pseudo-op.
This is the default.
-m64bit-doubles
- This option controls the ABI and indicates to use a 64-bit float ABI.
It has no effect on the assembled instructions, but it does influence
the behaviour of the `.double' pseudo-op.
-mbig-endian
- This option controls the ABI and indicates to use a big-endian data
ABI. It has no effect on the assembled instructions, but it does
influence the behaviour of the `.short', `.hword', `.int',
`.word', `.long', `.quad' and `.octa' pseudo-ops.
-mlittle-endian
- This option controls the ABI and indicates to use a little-endian data
ABI. It has no effect on the assembled instructions, but it does
influence the behaviour of the `.short', `.hword', `.int',
`.word', `.long', `.quad' and `.octa' pseudo-ops.
This is the default.
-muse-conventional-section-names
- This option controls the default names given to the code (.text),
initialised data (.data) and uninitialised data sections (.bss).
-muse-renesas-section-names
- This option controls the default names given to the code (.P),
initialised data (.D_1) and uninitialised data sections (.B_1).
This is the default.
-msmall-data-limit
- This option tells the assembler that the small data limit feature of
the RX port of GCC is being used. This results in the assembler
generating an undefined reference to a symbol called __gp for use by
the relocations that are needed to support the small data limit
feature. This option is not enabled by default as it would otherwise
pollute the symbol table.