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Altera_Forum's avatar
Altera_Forum
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16 years ago

Object file creation error during build

Im using the 9.1 version of the Nios tool and when I include one assembly source file and try to build my project, I notice the corresponding object file is not being created. Therefore I am getting undefined reference errors for the functions I have made in the source file. Im using the correct extension (.S) so I cant seem to figure out whats going on. Anyone else run into a similar problem?

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    We're seeing the same problem. It looks like the IDE is not adding the assembly files to the ASM_SRCS variable in the application makefile. I'm calling it a bug at this point.

    Jake
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    Figured out the solution. Apparently the extension is case sensitive so if you rename you file to xxx.s instead of xxx.S, it should build properly.

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    I do not agree with your workaround.

    It may certainly work for pure assembly, but not assembly code that must be pre-processed by the C pre-processor.

    Indeed, the fundamental difference between a .s and a .S file is the implicit pre-processing stage of the .S file to include files with# include directives and conditionally include code with# if/#ifdef/(etc...) directives.

    See gcc manual, chapter "3.2 Options Controlling the Kind of Output" :

    file.s Assembler code.

    file.S Assembler code which must be preprocessed.

    I therefore do also consider this to be a bug.