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Altera_Forum's avatar
Altera_Forum
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16 years ago

Mixed source/assembly list file from NIOS compiler?

Hi-

Does anyone know the compiler command line option to produce a mixed C source/assembly list file?

I'd like to compare the asm output for various NIOS custom HDL usages (memory mapped vs. custom instructions) and having the mixed output list file would help greatly.

Thanks, John Speth

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    The option you are looking for is "-S" for the nios2-elf-objdump utility. 

    $ nios2-elf-objdump.exe
Usage: nios2-elf-objdump <option(s)> <file(s)>
 Display information from object <file(s)>.
 At least one of the following switches must be given:
  -a, --archive-headers    Display archive header information
  -f, --file-headers       Display the contents of the overall file header
  -p, --private-headers    Display object format specific file header contents
  -h, --headers  Display the contents of the section headers
  -x, --all-headers        Display the contents of all headers
  -d, --disassemble        Display assembler contents of executable sections
  -D, --disassemble-all    Display assembler contents of all sections
  -S, --source             Intermix source code with disassembly
  -s, --full-contents      Display the full contents of all sections requested
  -g, --debugging          Display debug information in object file
  -e, --debugging-tags     Display debug information using ctags style
  -G, --stabs              Display (in raw form) any STABS info in the file
  -t, --syms               Display the contents of the symbol table(s)
  -T, --dynamic-syms       Display the contents of the dynamic symbol table
  -r, --reloc              Display the relocation entries in the file
  -R, --dynamic-reloc      Display the dynamic relocation entries in the file
  -v, --version            Display this program's version number
  -i, --info               List object formats and architectures supported
  -H, --help               Display this information
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    Thanks everyone for the clues and help (except for the not-so-helpful response). As with everything GCC, the answer is never in the most obvious place.

    Here's how to get what I want: Go to the IDE menu Window / Preferences / NIOS II dialog. Make sure "Generate objdump file" is checked. The mixed C/ASM file for the **entire** project can be found in the "<project>\Debug" directory under the file name "<project>.elf.objdump".

    FWIW, I zeroed in on this solution because similar forum responses are searched and displayed at the bottom of thread page as each new response comes in. It's quite a nice feature! Even tangential responses seem to help.

    Thanks again, John Speth.
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    --- Quote Start ---

    As with everything GCC, the answer is never in the most obvious place.

    --- Quote End ---

    It's not at all a GCC thing, but rather a Nios II IDE thing.

    Cheers,

    --slacker