linux-user: move cris signal.c parts to cris directory

No code change, only move code from signal.c to
cris/signal.c, except adding includes and
exporting setup_frame() and setup_rt_frame().

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-7-laurent@vivier.eu>

1 files changed, 0 insertions, 168 deletions

diff --git a/linux-user/signal.c b/linux-user/signal.c
index 546311221b..3f3fd05822 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -2364,174 +2364,6 @@ badframe:
     return -TARGET_QEMU_ESIGRETURN;
 }
 
-#elif defined(TARGET_CRIS)
-
-struct target_sigcontext {
-    struct target_pt_regs regs;  /* needs to be first */
-    uint32_t oldmask;
-    uint32_t usp;    /* usp before stacking this gunk on it */
-};
-
-/* Signal frames. */
-struct target_signal_frame {
-    struct target_sigcontext sc;
-    uint32_t extramask[TARGET_NSIG_WORDS - 1];
-    uint16_t retcode[4];      /* Trampoline code. */
-};
-
-struct rt_signal_frame {
-    siginfo_t *pinfo;
-    void *puc;
-    siginfo_t info;
-    ucontext_t uc;
-    uint16_t retcode[4];      /* Trampoline code. */
-};
-
-static void setup_sigcontext(struct target_sigcontext *sc, CPUCRISState *env)
-{
-    __put_user(env->regs[0], &sc->regs.r0);
-    __put_user(env->regs[1], &sc->regs.r1);
-    __put_user(env->regs[2], &sc->regs.r2);
-    __put_user(env->regs[3], &sc->regs.r3);
-    __put_user(env->regs[4], &sc->regs.r4);
-    __put_user(env->regs[5], &sc->regs.r5);
-    __put_user(env->regs[6], &sc->regs.r6);
-    __put_user(env->regs[7], &sc->regs.r7);
-    __put_user(env->regs[8], &sc->regs.r8);
-    __put_user(env->regs[9], &sc->regs.r9);
-    __put_user(env->regs[10], &sc->regs.r10);
-    __put_user(env->regs[11], &sc->regs.r11);
-    __put_user(env->regs[12], &sc->regs.r12);
-    __put_user(env->regs[13], &sc->regs.r13);
-    __put_user(env->regs[14], &sc->usp);
-    __put_user(env->regs[15], &sc->regs.acr);
-    __put_user(env->pregs[PR_MOF], &sc->regs.mof);
-    __put_user(env->pregs[PR_SRP], &sc->regs.srp);
-    __put_user(env->pc, &sc->regs.erp);
-}
-
-static void restore_sigcontext(struct target_sigcontext *sc, CPUCRISState *env)
-{
-    __get_user(env->regs[0], &sc->regs.r0);
-    __get_user(env->regs[1], &sc->regs.r1);
-    __get_user(env->regs[2], &sc->regs.r2);
-    __get_user(env->regs[3], &sc->regs.r3);
-    __get_user(env->regs[4], &sc->regs.r4);
-    __get_user(env->regs[5], &sc->regs.r5);
-    __get_user(env->regs[6], &sc->regs.r6);
-    __get_user(env->regs[7], &sc->regs.r7);
-    __get_user(env->regs[8], &sc->regs.r8);
-    __get_user(env->regs[9], &sc->regs.r9);
-    __get_user(env->regs[10], &sc->regs.r10);
-    __get_user(env->regs[11], &sc->regs.r11);
-    __get_user(env->regs[12], &sc->regs.r12);
-    __get_user(env->regs[13], &sc->regs.r13);
-    __get_user(env->regs[14], &sc->usp);
-    __get_user(env->regs[15], &sc->regs.acr);
-    __get_user(env->pregs[PR_MOF], &sc->regs.mof);
-    __get_user(env->pregs[PR_SRP], &sc->regs.srp);
-    __get_user(env->pc, &sc->regs.erp);
-}
-
-static abi_ulong get_sigframe(CPUCRISState *env, int framesize)
-{
-    abi_ulong sp;
-    /* Align the stack downwards to 4.  */
-    sp = (env->regs[R_SP] & ~3);
-    return sp - framesize;
-}
-
-static void setup_frame(int sig, struct target_sigaction *ka,
-                        target_sigset_t *set, CPUCRISState *env)
-{
-    struct target_signal_frame *frame;
-    abi_ulong frame_addr;
-    int i;
-
-    frame_addr = get_sigframe(env, sizeof *frame);
-    trace_user_setup_frame(env, frame_addr);
-    if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0))
-        goto badframe;
-
-    /*
-     * The CRIS signal return trampoline. A real linux/CRIS kernel doesn't
-     * use this trampoline anymore but it sets it up for GDB.
-     * In QEMU, using the trampoline simplifies things a bit so we use it.
-     *
-     * This is movu.w __NR_sigreturn, r9; break 13;
-     */
-    __put_user(0x9c5f, frame->retcode+0);
-    __put_user(TARGET_NR_sigreturn,
-               frame->retcode + 1);
-    __put_user(0xe93d, frame->retcode + 2);
-
-    /* Save the mask.  */
-    __put_user(set->sig[0], &frame->sc.oldmask);
-
-    for(i = 1; i < TARGET_NSIG_WORDS; i++) {
-        __put_user(set->sig[i], &frame->extramask[i - 1]);
-    }
-
-    setup_sigcontext(&frame->sc, env);
-
-    /* Move the stack and setup the arguments for the handler.  */
-    env->regs[R_SP] = frame_addr;
-    env->regs[10] = sig;
-    env->pc = (unsigned long) ka->_sa_handler;
-    /* Link SRP so the guest returns through the trampoline.  */
-    env->pregs[PR_SRP] = frame_addr + offsetof(typeof(*frame), retcode);
-
-    unlock_user_struct(frame, frame_addr, 1);
-    return;
-badframe:
-    force_sigsegv(sig);
-}
-
-static void setup_rt_frame(int sig, struct target_sigaction *ka,
-                           target_siginfo_t *info,
-                           target_sigset_t *set, CPUCRISState *env)
-{
-    fprintf(stderr, "CRIS setup_rt_frame: not implemented\n");
-}
-
-long do_sigreturn(CPUCRISState *env)
-{
-    struct target_signal_frame *frame;
-    abi_ulong frame_addr;
-    target_sigset_t target_set;
-    sigset_t set;
-    int i;
-
-    frame_addr = env->regs[R_SP];
-    trace_user_do_sigreturn(env, frame_addr);
-    /* Make sure the guest isn't playing games.  */
-    if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 1)) {
-        goto badframe;
-    }
-
-    /* Restore blocked signals */
-    __get_user(target_set.sig[0], &frame->sc.oldmask);
-    for(i = 1; i < TARGET_NSIG_WORDS; i++) {
-        __get_user(target_set.sig[i], &frame->extramask[i - 1]);
-    }
-    target_to_host_sigset_internal(&set, &target_set);
-    set_sigmask(&set);
-
-    restore_sigcontext(&frame->sc, env);
-    unlock_user_struct(frame, frame_addr, 0);
-    return -TARGET_QEMU_ESIGRETURN;
-badframe:
-    force_sig(TARGET_SIGSEGV);
-    return -TARGET_QEMU_ESIGRETURN;
-}
-
-long do_rt_sigreturn(CPUCRISState *env)
-{
-    trace_user_do_rt_sigreturn(env, 0);
-    fprintf(stderr, "CRIS do_rt_sigreturn: not implemented\n");
-    return -TARGET_ENOSYS;
-}
-
 #elif defined(TARGET_NIOS2)
 
 #define MCONTEXT_VERSION 2