MIPS: microMIPS: Add vdso support.
authorDouglas Leung <Douglas.Leung@imgtec.com>
Mon, 25 Mar 2013 18:21:11 +0000 (13:21 -0500)
committerRalf Baechle <ralf@linux-mips.org>
Thu, 9 May 2013 15:55:19 +0000 (17:55 +0200)
Support vdso in microMIPS mode.

Signed-off-by: Douglas Leung <Douglas.Leung@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
arch/mips/kernel/signal.c

index b5e88fd..fd3ef2c 100644 (file)
@@ -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]) {