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Hello,
I am working on Sharc Vdsp(4.1) toolset with the patches.
I wish to include a .ldr file in a C file.
I followed the guide lines in theVDSP users guide and reference
manual.(page A-9 of File formats) if i include the .ldr in that way iam getting
a compilation error indicating '# not expected at this place'
can i get more info on the "loader include file formats (.ldr) "
and how to include them on C/asm files
thanks and regards,
kannan
Systems Engineer.
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Including an .ldr file in a c file...
Started by ●August 23, 2000
Reply by ●August 23, 20002000-08-23
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On Wed, 23 Aug 2000 17:17:12 +0100, Kannan Subranian wrote: > I am working on Sharc Vdsp(4.1) toolset with the patches. I wish to > include a .ldr file in a C file. I followed the guide lines in > theVDSP users guide and reference manual.(page A-9 of File formats) > if i include the .ldr in that way iam getting a compilation error > indicating '# not expected at this place' can i get more info on the > "loader include file formats (.ldr) " and how to include them on > C/asm files Found what you're referring to, in the linker manual, under "Loader Include Format Files (.LDR)", page A-9. An example is provided on page A-10. I think the example is wrong, as its shows the type of the array to be float[] instead of unsigned[]. It should also be unnecessary to pre-specify the array size. Instead, use something like this: const unsigned loader_file[] = { #include "foo.ldr" }; const unsigned loader_file_count = sizeof loader_file / sizeof loader_file[0]; I also note that in the example ADI gives, the loader file lacks a comma at the end of each line of data. Is this true with an actual .LDR file? If so, then the loader program is broken. Only the last line should lack a trailing comma. You could probably use sed or awk from Cygwin to fix the file. (Cygwin is at http://sourceware.cygnus.com.) You may want to try running the preprocessor by itself to see what the compiler is complaining about: cc21k -E [other options] -o foo.i foo.c Then compile the result: cc21k -c [other options] -o foo.doj foo.i This should clarify where the real problem is. Kenneth Porter Kensington Laboratories, Inc. mailto: http://www.kensingtonlabs.com |
Reply by ●August 24, 20002000-08-24
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Yes, the example in the manual does indeed contain errors. The data type
for the array should be unsigned, not float. The include format loader file is comma delimited except for the last word. Also, it is required that any # directives be placed as the first characters on a given line, since the preprocessor will recognize them only if they are in that first position. Thank you Ken for pointing out the errors. They will be fixed in the next edition. > DSP Support > > Analog Devices, CPD > 3 Technology Way > Norwood, MA 02062-9106 > > Email: > Phone: 1-800-ANALOGD > Fax: 781.461.3010 > FTP: ftp.analog.com > WEB: www.analog.com > DSP EZ-Answers: http://www.analog.com/dsp/EZ/index.html > ---------- > From: Kenneth Porter[SMTP:] > Reply To: Kenneth Porter > Sent: Wednesday, August 23, 2000 4:04 PM > To: Support, DSP > Subject: Re: [adsp] Including an .ldr file in a c file... > > On Wed, 23 Aug 2000 17:17:12 +0100, Kannan Subranian wrote: > > > I am working on Sharc Vdsp(4.1) toolset with the patches. I wish to > > include a .ldr file in a C file. I followed the guide lines in > > theVDSP users guide and reference manual.(page A-9 of File formats) > > if i include the .ldr in that way iam getting a compilation error > > indicating '# not expected at this place' can i get more info on the > > "loader include file formats (.ldr) " and how to include them on > > C/asm files > > Found what you're referring to, in the linker manual, under "Loader > Include Format Files (.LDR)", page A-9. An example is provided on > page A-10. I think the example is wrong, as its shows the type of the > array to be float[] instead of unsigned[]. It should also be > unnecessary to pre-specify the array size. Instead, use something > like this: > > const unsigned loader_file[] = { > #include "foo.ldr" > }; > const unsigned loader_file_count > = sizeof loader_file / sizeof loader_file[0]; > > I also note that in the example ADI gives, the loader file lacks a > comma at the end of each line of data. Is this true with an actual > ..LDR file? If so, then the loader program is broken. Only the last > line should lack a trailing comma. You could probably use sed or awk > from Cygwin to fix the file. (Cygwin is at > http://sourceware.cygnus.com.) > > You may want to try running the preprocessor by itself to see what > the compiler is complaining about: > > cc21k -E [other options] -o foo.i foo.c > > Then compile the result: > > cc21k -c [other options] -o foo.doj foo.i > > This should clarify where the real problem is. > > Kenneth Porter > Kensington Laboratories, Inc. > mailto: > http://www.kensingtonlabs.com > |
