Ubuntu
sbsigntool package

sbsigntool failed to compile on Solaris system " sbkeysync.c", line 281: warning: pointer to void or function used in arithmetic"

Asked by mat troi

Hi,

When I compile sbsigntool package on a Solaris system, I got warnings below and compilation failed:
"/home/mt/sbsigntool/sbsigntool-0.6/src/sbkeysync.c", line 281: warning: pointer to void or function used in arithmetic
"/home/mt/sbsigntool/sbsigntool-0.6/src/sbkeysync.c", line 286: warning: pointer to void or function used in arithmetic
"/home/mt/sbsigntool/sbsigntool-0.6/src/sbkeysync.c", line 303: warning: pointer to void or function used in arithmetic
"/home/mt/sbsigntool/sbsigntool-0.6/src/sbkeysync.c", line 393: warning: attribute "format" is unknown, ignored
"/home/mt/sbsigntool/sbsigntool-0.6/src/sbkeysync.c", line 463: warning: pointer to void or function used in arithmetic

I looked online and it looks like arithmetic on void pointer is not supported in C standard, but is supported with GNU C. Has anyone seen similar issue and know how to fix?

Thanks,
Mat

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actionparsnip (andrew-woodhead666) said : 		#1

This is Ubuntu support only, not Solaris. I suggest you post on a Solaris forum.

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Jeremy Kerr (jk-ozlabs) said : 		#2

sbsigntool does use pointer arithmetic on void * types, which is a gcc extension. With the code as it is now, you'll need to use gcc to compile it.

However, even if it does compile, it'll probably be useless on a Solaris system. The EFI variable interface that sbkeysync uses is specific to the Linux kernel.

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