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3.17.25 MicroBlaze Options
-msoft-float-
Use software emulation for floating point (default).
-mhard-float-
Use hardware floating-point instructions.
-mmemcpy-
Do not optimize block moves, use
memcpy. -mno-clearbss-
This option is deprecated. Use ‘-fno-zero-initialized-in-bss’ instead.
-mcpu=cpu-type-
Use features of, and schedule code for, the given CPU. Supported values are in the format ‘vX.YY.Z’, where X is a major version, YY is the minor version, and Z is compatibility code. Example values are ‘v3.00.a’, ‘v4.00.b’, ‘v5.00.a’, ‘v5.00.b’, ‘v5.00.b’, ‘v6.00.a’.
-mxl-soft-mul-
Use software multiply emulation (default).
-mxl-soft-div-
Use software emulation for divides (default).
-mxl-barrel-shift-
Use the hardware barrel shifter.
-mxl-pattern-compare-
Use pattern compare instructions.
-msmall-divides-
Use table lookup optimization for small signed integer divisions.
-mxl-stack-check-
This option is deprecated. Use ‘-fstack-check’ instead.
-mxl-gp-opt-
Use GP-relative
.sdata/.sbsssections. -mxl-multiply-high-
Use multiply high instructions for high part of 32x32 multiply.
-mxl-float-convert-
Use hardware floating-point conversion instructions.
-mxl-float-sqrt-
Use hardware floating-point square root instruction.
-mbig-endian-
Generate code for a big-endian target.
-mlittle-endian-
Generate code for a little-endian target.
-mxl-reorder-
Use reorder instructions (swap and byte reversed load/store).
-mxl-mode-app-modelSelect application model app-model. Valid models are
- ‘executable’
normal executable (default), uses startup code ‘crt0.o’.
- ‘xmdstub’
for use with Xilinx Microprocessor Debugger (XMD) based software intrusive debug agent called xmdstub. This uses startup file ‘crt1.o’ and sets the start address of the program to 0x800.
- ‘bootstrap’
for applications that are loaded using a bootloader. This model uses startup file ‘crt2.o’ which does not contain a processor reset vector handler. This is suitable for transferring control on a processor reset to the bootloader rather than the application.
- ‘novectors’
for applications that do not require any of the MicroBlaze vectors. This option may be useful for applications running within a monitoring application. This model uses ‘crt3.o’ as a startup file.
Option ‘-xl-mode-app-model’ is a deprecated alias for ‘-mxl-mode-app-model’.
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