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sh: Simplify kernel_thread_helper() for sh32.

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This can use the same implementation as sh64, the generated assembly is
the same between the new and old version, so there is not much point in
leaving it open coded in inline assembly.

This is preparatory work for future consolidation of the _32/_64
variants.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2008-12-17 12:20:15 +09:00
parent 7b80fb32b3
commit 43f8f9b95b
1 changed files with 4 additions and 15 deletions
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19
arch/sh/kernel/process_32.c
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@ -97,21 +97,10 @@ void show_regs(struct pt_regs * regs)
/*
* Create a kernel thread
*/
/*
* This is the mechanism for creating a new kernel thread.
*
*/
extern void kernel_thread_helper(void);
__asm__(".align 5\n"
"kernel_thread_helper:\n\t"
"jsr @r5\n\t"
" nop\n\t"
"mov.l 1f, r1\n\t"
"jsr @r1\n\t"
" mov r0, r4\n\t"
".align 2\n\t"
"1:.long do_exit");
ATTRIB_NORET void kernel_thread_helper(void *arg, int (*fn)(void *))
{
do_exit(fn(arg));
}
/* Don't use this in BL=1(cli). Or else, CPU resets! */
int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)