[MIPS] signal: do not inline functions in signal-common.h

[pandora-kernel.git] / arch / mips / kernel / signal-common.h

diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index bb3c631..03d2b60 100644 (file)
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -8,145 +8,23 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  */
 
+#ifndef __SIGNAL_COMMON_H
+#define __SIGNAL_COMMON_H
 
-static inline int
-setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
-{
-       int err = 0;
-       int i;
-
-       err |= __put_user(regs->cp0_epc, &sc->sc_pc);
-
-       err |= __put_user(0, &sc->sc_regs[0]);
-       for (i = 1; i < 32; i++)
-               err |= __put_user(regs->regs[i], &sc->sc_regs[i]);
-
-       err |= __put_user(regs->hi, &sc->sc_mdhi);
-       err |= __put_user(regs->lo, &sc->sc_mdlo);
-       if (cpu_has_dsp) {
-               err |= __put_user(mfhi1(), &sc->sc_hi1);
-               err |= __put_user(mflo1(), &sc->sc_lo1);
-               err |= __put_user(mfhi2(), &sc->sc_hi2);
-               err |= __put_user(mflo2(), &sc->sc_lo2);
-               err |= __put_user(mfhi3(), &sc->sc_hi3);
-               err |= __put_user(mflo3(), &sc->sc_lo3);
-               err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
-       }
-
-       err |= __put_user(!!used_math(), &sc->sc_used_math);
-
-       if (used_math()) {
-               /*
-                * Save FPU state to signal context.  Signal handler
-                * will "inherit" current FPU state.
-                */
-               preempt_disable();
-
-               if (!is_fpu_owner()) {
-                       own_fpu();
-                       restore_fp(current);
-               }
-               err |= save_fp_context(sc);
-
-               preempt_enable();
-       }
-       return err;
-}
-
-static inline int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
-{
-       unsigned int used_math;
-       unsigned long treg;
-       int err = 0;
-       int i;
-
-       /* Always make any pending restarted system calls return -EINTR */
-       current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-       err |= __get_user(regs->cp0_epc, &sc->sc_pc);
-       err |= __get_user(regs->hi, &sc->sc_mdhi);
-       err |= __get_user(regs->lo, &sc->sc_mdlo);
-       if (cpu_has_dsp) {
-               err |= __get_user(treg, &sc->sc_hi1); mthi1(treg);
-               err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg);
-               err |= __get_user(treg, &sc->sc_hi2); mthi2(treg);
-               err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg);
-               err |= __get_user(treg, &sc->sc_hi3); mthi3(treg);
-               err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
-               err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
-       }
-
-       for (i = 1; i < 32; i++)
-               err |= __get_user(regs->regs[i], &sc->sc_regs[i]);
-
-       err |= __get_user(used_math, &sc->sc_used_math);
-       conditional_used_math(used_math);
-
-       preempt_disable();
-
-       if (used_math()) {
-               /* restore fpu context if we have used it before */
-               own_fpu();
-               err |= restore_fp_context(sc);
-       } else {
-               /* signal handler may have used FPU.  Give it up. */
-               lose_fpu();
-       }
-
-       preempt_enable();
-
-       return err;
-}
+/*
+ * handle hardware context
+ */
+extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
+extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
 
 /*
  * Determine which stack to use..
  */
-static inline void __user *
-get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
-{
-       unsigned long sp;
-
-       /* Default to using normal stack */
-       sp = regs->regs[29];
-
-       /*
-        * FPU emulator may have it's own trampoline active just
-        * above the user stack, 16-bytes before the next lowest
-        * 16 byte boundary.  Try to avoid trashing it.
-        */
-       sp -= 32;
-
-       /* This is the X/Open sanctioned signal stack switching.  */
-       if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0))
-               sp = current->sas_ss_sp + current->sas_ss_size;
-
-       return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? ~(cpu_icache_line_size()-1) : ALMASK));
-}
-
-static inline int install_sigtramp(unsigned int __user *tramp,
-       unsigned int syscall)
-{
-       int err;
-
-       /*
-        * Set up the return code ...
-        *
-        *         li      v0, __NR__foo_sigreturn
-        *         syscall
-        */
-
-       err = __put_user(0x24020000 + syscall, tramp + 0);
-       err |= __put_user(0x0000000c          , tramp + 1);
-       if (ICACHE_REFILLS_WORKAROUND_WAR) {
-               err |= __put_user(0, tramp + 2);
-               err |= __put_user(0, tramp + 3);
-               err |= __put_user(0, tramp + 4);
-               err |= __put_user(0, tramp + 5);
-               err |= __put_user(0, tramp + 6);
-               err |= __put_user(0, tramp + 7);
-       }
-       flush_cache_sigtramp((unsigned long) tramp);
+extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
+                                size_t frame_size);
+/*
+ * install trampoline code to get back from the sig handler
+ */
+extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall);
 
-       return err;
-}
+#endif /* __SIGNAL_COMMON_H */