Hi Adrian,
> > in the file "efi.h" located in /fs/partitions in the kernel tree I found
> > this structure definition:
> >
> > 87. typedef struct _gpt_entry_attributes {
> > 88. u64 required_to_function:1;
> > 89. u64 reserved:47;
> > 90. u64 type_guid_specific:16;
> > 91. } __attribute__ ((packed)) gpt_entry_attributes;
> >
> >
> > Unfortunatelly, my compiler (perhaps?) can't handle this:
> >
> > In file included from check.c:36:
> > efi.h:91: Illegal bitfield width
> > make[4]: *** [check.o] Error 1
> >
> > I've never seen a variable definition like this before (and google
> doesn't
> > work...):
> >
> > required_to_function:1;
> >
> > What does the collon after the variable name mean? What does the number
> > after the collon mean?
> >
> > In the same file there are few other typedefs of the same form and they
> use
> > the datatype u64 (which is defined as unsigned long long in asm/types.h)
> and
> > the attribute packed too. But with them there are no compile problems.
> So I
> > guess, the problem is the collon and the number after the collon.
>
> As your compiler is telling you they are bitfields.
>
> What compiler are you using that has a problem with this code?
>
I am using a tricore-gcc crosscompiler in Cygwin under Windows 2000
Professional:
gcc version 2.95.3 20010315 (release 2.4.0) 20030318 built for CYGWIN_NT-5.0
I asked one of our postdoctoral researchers (I am a student) about the error
message I get and he said to me, that ANSI C only permits bitfields which
max length is 32 bits. He also said, that the error message has perhaps
something with cygwin to do.
Do you have any idea, how I could modify the code without breaking anything?
Regards, Paul
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