[lkml]   [2001]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: APIC, AMD-K6/2 -mcpu=586...

>>>>> "JAM" == J A Magallon <> writes:

JAM> That is not the problem. The problem is that the registers have
JAM> to lay in a defined way, transcribed to a C struct, and that
JAM> pgcc lays badly that struct.

WJP> Yes, I understand that. I was showing a way to find the value
WJP> of padding needed to align the register store in the structure.
WJP> Perhaps I should have shown a mod to asm/processor.h,
WJP> I was describing a way to make things independent of the
WJP> compiler layout of the structs. However, this complicates the
WJP> build process, and people might not like the padding due to
WJP> cache alignment details.

Sorry, they would obviously declare it as such if the kernel developers
wanted to.

/* floating point info */
unsigned char fpAlign[0] __attribute__ ((aligned (16)));
union i387_union i387;

This is a much simpler way of achieving what I was trying to explain
previously. I think that this syntax has been in the GCC extensions
for some time.

Bill Pringlemeir.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:53    [W:0.120 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site