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4.3 cuobjdump

cuobjdump is the utility that may be used to examine the binaries generated by CUDA. In particular, it is useful for examining the microcode generated by nvcc: specify the --cubin parameter to nvcc to generate a .cubin file, then use

cuobjdump --dump-sass <filename.cubin>

to dump the disassembled microcode from the .cubin file.

The complete list of command-line options for cuobjdump is given in Table 4-10.

Option	Description
`--all-fatbin` (`-all`)	Dump all fatbin sections. By default, will only dump the contents of executable fatbin; if there is no executable fatbin, dumps the contents of the relocatable fatbin.
`--dump-cubin` (`-cubin`)	Dump cubin for all listed device functions.
`--dump-elf` (`-elf`)	Dump ELF Object sections.
`--dump-elf-symbols` (`-symbols`)	Dump ELF symbol names.
`--dump-function-names` (`-fnam`)	Dump names of device functions. This option is implied if options `--dump-sass`, `--dump-cubin` or `--dump-ptx` are given.
`--dump-ptx` (`-ptx`)	Dump PTX for all listed device functions.
`--dump-sass` (`-sass`)	Dump disassembly for all listed device functions.
`--file` <filename> (`-f`)	Specify names of source files whose fat binary structures must be dumped. Source files may be specified by the full path by which they were compiled with `nvcc`, by filename only, or by base filename (with no file extension).
`--function` <function name> (`-fun`)	Specify names of device functions whose fat binary structures must be dumped.
`--help` (`-h`)	Print this help information on this tool.
`--options-file` <file> (`-optf`)	Include command line options from specified file.
`--sort-functions` (`-sort`)	Sort functions when dumping SASS.
`--version` (`-V`)	Print version information on this tool.

Table 4-10. cuobjdump command-line options