AcoSail/kernel_optimize_test
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sh: Move start_thread() out of line.

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start_thread() will become a bit heavier with the xstate freeing to be
added in, so move it out-of-line in preparation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2010-01-12 18:52:00 +09:00
parent 94cd049522
commit 70e068eef9
2 changed files with 14 additions and 11 deletions
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13
arch/sh/include/asm/processor_32.h
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@ -119,19 +119,10 @@ extern int ubc_usercnt;
.sp = sizeof(init_stack) + (long) &init_stack, \
}
/*
* Do necessary setup to start up a newly executed thread.
*/
#define start_thread(_regs, new_pc, new_sp) \
set_fs(USER_DS); \
_regs->pr = 0; \
_regs->sr = SR_FD; /* User mode. */ \
_regs->pc = new_pc; \
_regs->regs[15] = new_sp
/* Forward declaration, a strange C thing */
struct task_struct;
struct mm_struct;
extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned long new_sp);
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);

12
arch/sh/kernel/process_32.c
View File

@ -147,6 +147,18 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
}
EXPORT_SYMBOL(kernel_thread);
void start_thread(struct pt_regs *regs, unsigned long new_pc,
unsigned long new_sp)
{
set_fs(USER_DS);
regs->pr = 0;
regs->sr = SR_FD;
regs->pc = new_pc;
regs->regs[15] = new_sp;
}
EXPORT_SYMBOL(start_thread);
/*
* Free current thread data structures etc..
*/