Markus Gutschke <[email protected]> wrote:
>
> Gcc reserves %ebx when compiling position-independent-code on i386. This
> means, the _syscallX() macros in include/asm-i386/unistd.h will not
> compile. This patch is against 2.6.15.6 and adds a new set of macros
> which will be used in PIC mode. These macros take special care to
> preserve %ebx.
But we don't compile the kernel with -fpic... We might want to, for kdump
convenience at some stage, perhaps.
If we do, it'd be better to simply replace those _syscallX functions with
versions which work in either mode, rather than having two versions.
The syscallX() macros are almost obsolete - it's preferred that code simply
include syscalls.h and call sys_foo() directly. But there are a few
hard-to-convert places, iirc.
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