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

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

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-12-laurent@vivier.eu>

1 files changed, 0 insertions, 259 deletions

diff --git a/linux-user/signal.c b/linux-user/signal.c
index 16b1caad8b..7c2a963e7c 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -3032,265 +3032,6 @@ sigsegv:
     return -TARGET_QEMU_ESIGRETURN;
 }
 
-#elif defined(TARGET_ALPHA)
-
-struct target_sigcontext {
-    abi_long sc_onstack;
-    abi_long sc_mask;
-    abi_long sc_pc;
-    abi_long sc_ps;
-    abi_long sc_regs[32];
-    abi_long sc_ownedfp;
-    abi_long sc_fpregs[32];
-    abi_ulong sc_fpcr;
-    abi_ulong sc_fp_control;
-    abi_ulong sc_reserved1;
-    abi_ulong sc_reserved2;
-    abi_ulong sc_ssize;
-    abi_ulong sc_sbase;
-    abi_ulong sc_traparg_a0;
-    abi_ulong sc_traparg_a1;
-    abi_ulong sc_traparg_a2;
-    abi_ulong sc_fp_trap_pc;
-    abi_ulong sc_fp_trigger_sum;
-    abi_ulong sc_fp_trigger_inst;
-};
-
-struct target_ucontext {
-    abi_ulong tuc_flags;
-    abi_ulong tuc_link;
-    abi_ulong tuc_osf_sigmask;
-    target_stack_t tuc_stack;
-    struct target_sigcontext tuc_mcontext;
-    target_sigset_t tuc_sigmask;
-};
-
-struct target_sigframe {
-    struct target_sigcontext sc;
-    unsigned int retcode[3];
-};
-
-struct target_rt_sigframe {
-    target_siginfo_t info;
-    struct target_ucontext uc;
-    unsigned int retcode[3];
-};
-
-#define INSN_MOV_R30_R16        0x47fe0410
-#define INSN_LDI_R0             0x201f0000
-#define INSN_CALLSYS            0x00000083
-
-static void setup_sigcontext(struct target_sigcontext *sc, CPUAlphaState *env,
-                             abi_ulong frame_addr, target_sigset_t *set)
-{
-    int i;
-
-    __put_user(on_sig_stack(frame_addr), &sc->sc_onstack);
-    __put_user(set->sig[0], &sc->sc_mask);
-    __put_user(env->pc, &sc->sc_pc);
-    __put_user(8, &sc->sc_ps);
-
-    for (i = 0; i < 31; ++i) {
-        __put_user(env->ir[i], &sc->sc_regs[i]);
-    }
-    __put_user(0, &sc->sc_regs[31]);
-
-    for (i = 0; i < 31; ++i) {
-        __put_user(env->fir[i], &sc->sc_fpregs[i]);
-    }
-    __put_user(0, &sc->sc_fpregs[31]);
-    __put_user(cpu_alpha_load_fpcr(env), &sc->sc_fpcr);
-
-    __put_user(0, &sc->sc_traparg_a0); /* FIXME */
-    __put_user(0, &sc->sc_traparg_a1); /* FIXME */
-    __put_user(0, &sc->sc_traparg_a2); /* FIXME */
-}
-
-static void restore_sigcontext(CPUAlphaState *env,
-                               struct target_sigcontext *sc)
-{
-    uint64_t fpcr;
-    int i;
-
-    __get_user(env->pc, &sc->sc_pc);
-
-    for (i = 0; i < 31; ++i) {
-        __get_user(env->ir[i], &sc->sc_regs[i]);
-    }
-    for (i = 0; i < 31; ++i) {
-        __get_user(env->fir[i], &sc->sc_fpregs[i]);
-    }
-
-    __get_user(fpcr, &sc->sc_fpcr);
-    cpu_alpha_store_fpcr(env, fpcr);
-}
-
-static inline abi_ulong get_sigframe(struct target_sigaction *sa,
-                                     CPUAlphaState *env,
-                                     unsigned long framesize)
-{
-    abi_ulong sp = env->ir[IR_SP];
-
-    /* This is the X/Open sanctioned signal stack switching.  */
-    if ((sa->sa_flags & TARGET_SA_ONSTACK) != 0 && !sas_ss_flags(sp)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
-    }
-    return (sp - framesize) & -32;
-}
-
-static void setup_frame(int sig, struct target_sigaction *ka,
-                        target_sigset_t *set, CPUAlphaState *env)
-{
-    abi_ulong frame_addr, r26;
-    struct target_sigframe *frame;
-    int err = 0;
-
-    frame_addr = get_sigframe(ka, env, sizeof(*frame));
-    trace_user_setup_frame(env, frame_addr);
-    if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
-        goto give_sigsegv;
-    }
-
-    setup_sigcontext(&frame->sc, env, frame_addr, set);
-
-    if (ka->sa_restorer) {
-        r26 = ka->sa_restorer;
-    } else {
-        __put_user(INSN_MOV_R30_R16, &frame->retcode[0]);
-        __put_user(INSN_LDI_R0 + TARGET_NR_sigreturn,
-                   &frame->retcode[1]);
-        __put_user(INSN_CALLSYS, &frame->retcode[2]);
-        /* imb() */
-        r26 = frame_addr + offsetof(struct target_sigframe, retcode);
-    }
-
-    unlock_user_struct(frame, frame_addr, 1);
-
-    if (err) {
-give_sigsegv:
-        force_sigsegv(sig);
-        return;
-    }
-
-    env->ir[IR_RA] = r26;
-    env->ir[IR_PV] = env->pc = ka->_sa_handler;
-    env->ir[IR_A0] = sig;
-    env->ir[IR_A1] = 0;
-    env->ir[IR_A2] = frame_addr + offsetof(struct target_sigframe, sc);
-    env->ir[IR_SP] = frame_addr;
-}
-
-static void setup_rt_frame(int sig, struct target_sigaction *ka,
-                           target_siginfo_t *info,
-                           target_sigset_t *set, CPUAlphaState *env)
-{
-    abi_ulong frame_addr, r26;
-    struct target_rt_sigframe *frame;
-    int i, err = 0;
-
-    frame_addr = get_sigframe(ka, env, sizeof(*frame));
-    trace_user_setup_rt_frame(env, frame_addr);
-    if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
-        goto give_sigsegv;
-    }
-
-    tswap_siginfo(&frame->info, info);
-
-    __put_user(0, &frame->uc.tuc_flags);
-    __put_user(0, &frame->uc.tuc_link);
-    __put_user(set->sig[0], &frame->uc.tuc_osf_sigmask);
-    __put_user(target_sigaltstack_used.ss_sp,
-               &frame->uc.tuc_stack.ss_sp);
-    __put_user(sas_ss_flags(env->ir[IR_SP]),
-               &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
-               &frame->uc.tuc_stack.ss_size);
-    setup_sigcontext(&frame->uc.tuc_mcontext, env, frame_addr, set);
-    for (i = 0; i < TARGET_NSIG_WORDS; ++i) {
-        __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]);
-    }
-
-    if (ka->sa_restorer) {
-        r26 = ka->sa_restorer;
-    } else {
-        __put_user(INSN_MOV_R30_R16, &frame->retcode[0]);
-        __put_user(INSN_LDI_R0 + TARGET_NR_rt_sigreturn,
-                   &frame->retcode[1]);
-        __put_user(INSN_CALLSYS, &frame->retcode[2]);
-        /* imb(); */
-        r26 = frame_addr + offsetof(struct target_sigframe, retcode);
-    }
-
-    if (err) {
-give_sigsegv:
-        force_sigsegv(sig);
-        return;
-    }
-
-    env->ir[IR_RA] = r26;
-    env->ir[IR_PV] = env->pc = ka->_sa_handler;
-    env->ir[IR_A0] = sig;
-    env->ir[IR_A1] = frame_addr + offsetof(struct target_rt_sigframe, info);
-    env->ir[IR_A2] = frame_addr + offsetof(struct target_rt_sigframe, uc);
-    env->ir[IR_SP] = frame_addr;
-}
-
-long do_sigreturn(CPUAlphaState *env)
-{
-    struct target_sigcontext *sc;
-    abi_ulong sc_addr = env->ir[IR_A0];
-    target_sigset_t target_set;
-    sigset_t set;
-
-    if (!lock_user_struct(VERIFY_READ, sc, sc_addr, 1)) {
-        goto badframe;
-    }
-
-    target_sigemptyset(&target_set);
-    __get_user(target_set.sig[0], &sc->sc_mask);
-
-    target_to_host_sigset_internal(&set, &target_set);
-    set_sigmask(&set);
-
-    restore_sigcontext(env, sc);
-    unlock_user_struct(sc, sc_addr, 0);
-    return -TARGET_QEMU_ESIGRETURN;
-
-badframe:
-    force_sig(TARGET_SIGSEGV);
-    return -TARGET_QEMU_ESIGRETURN;
-}
-
-long do_rt_sigreturn(CPUAlphaState *env)
-{
-    abi_ulong frame_addr = env->ir[IR_A0];
-    struct target_rt_sigframe *frame;
-    sigset_t set;
-
-    trace_user_do_rt_sigreturn(env, frame_addr);
-    if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) {
-        goto badframe;
-    }
-    target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
-    set_sigmask(&set);
-
-    restore_sigcontext(env, &frame->uc.tuc_mcontext);
-    if (do_sigaltstack(frame_addr + offsetof(struct target_rt_sigframe,
-                                             uc.tuc_stack),
-                       0, env->ir[IR_SP]) == -EFAULT) {
-        goto badframe;
-    }
-
-    unlock_user_struct(frame, frame_addr, 0);
-    return -TARGET_QEMU_ESIGRETURN;
-
-
-badframe:
-    unlock_user_struct(frame, frame_addr, 0);
-    force_sig(TARGET_SIGSEGV);
-    return -TARGET_QEMU_ESIGRETURN;
-}
-
 #elif defined(TARGET_TILEGX)
 
 struct target_sigcontext {