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MIPS: microMIPS: Add vdso support.

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Support vdso in microMIPS mode.

Signed-off-by: Douglas Leung <Douglas.Leung@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
This commit is contained in:
Douglas Leung 2013-03-25 13:21:11 -05:00 committed by Ralf Baechle
parent 34c2f668d0
commit 01be057b33
1 changed files with 9 additions and 0 deletions
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9
arch/mips/kernel/signal.c
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@ -35,6 +35,7 @@
#include <asm/war.h>
#include <asm/vdso.h>
#include <asm/dsp.h>
#include <asm/inst.h>
#include "signal-common.h"
@ -480,7 +481,15 @@ static void handle_signal(unsigned long sig, siginfo_t *info,
sigset_t *oldset = sigmask_to_save();
int ret;
struct mips_abi *abi = current->thread.abi;
#ifdef CONFIG_CPU_MICROMIPS
void *vdso;
unsigned int tmp = (unsigned int)current->mm->context.vdso;
set_isa16_mode(tmp);
vdso = (void *)tmp;
#else
void *vdso = current->mm->context.vdso;
#endif
if (regs->regs[0]) {
switch(regs->regs[2]) {