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author | Laurent Vivier <laurent@vivier.eu> | 2018-04-24 21:26:25 +0200 |
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committer | Laurent Vivier <laurent@vivier.eu> | 2018-04-30 09:47:47 +0200 |
commit | 4495abcc3bd5e7181c12dc1ec3855173df995151 (patch) | |
tree | 83aad815651efb127b91a47862e773594895134f /linux-user/signal.c | |
parent | 4c4c73e36911cd666905163be1cb5767a349b986 (diff) | |
download | qemu-4495abcc3bd5e7181c12dc1ec3855173df995151.zip qemu-4495abcc3bd5e7181c12dc1ec3855173df995151.tar.gz qemu-4495abcc3bd5e7181c12dc1ec3855173df995151.tar.bz2 |
linux-user: move m68k signal.c parts to m68k directory
No code change, only move code from signal.c to
m68k/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: <20180424192635.6027-11-laurent@vivier.eu>
Diffstat (limited to 'linux-user/signal.c')
-rw-r--r-- | linux-user/signal.c | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c index 32a9405..16b1caa 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -3032,413 +3032,6 @@ sigsegv: return -TARGET_QEMU_ESIGRETURN; } -#elif defined(TARGET_M68K) - -struct target_sigcontext { - abi_ulong sc_mask; - abi_ulong sc_usp; - abi_ulong sc_d0; - abi_ulong sc_d1; - abi_ulong sc_a0; - abi_ulong sc_a1; - unsigned short sc_sr; - abi_ulong sc_pc; -}; - -struct target_sigframe -{ - abi_ulong pretcode; - int sig; - int code; - abi_ulong psc; - char retcode[8]; - abi_ulong extramask[TARGET_NSIG_WORDS-1]; - struct target_sigcontext sc; -}; - -typedef int target_greg_t; -#define TARGET_NGREG 18 -typedef target_greg_t target_gregset_t[TARGET_NGREG]; - -typedef struct target_fpregset { - int f_fpcntl[3]; - int f_fpregs[8*3]; -} target_fpregset_t; - -struct target_mcontext { - int version; - target_gregset_t gregs; - target_fpregset_t fpregs; -}; - -#define TARGET_MCONTEXT_VERSION 2 - -struct target_ucontext { - abi_ulong tuc_flags; - abi_ulong tuc_link; - target_stack_t tuc_stack; - struct target_mcontext tuc_mcontext; - abi_long tuc_filler[80]; - target_sigset_t tuc_sigmask; -}; - -struct target_rt_sigframe -{ - abi_ulong pretcode; - int sig; - abi_ulong pinfo; - abi_ulong puc; - char retcode[8]; - struct target_siginfo info; - struct target_ucontext uc; -}; - -static void setup_sigcontext(struct target_sigcontext *sc, CPUM68KState *env, - abi_ulong mask) -{ - uint32_t sr = (env->sr & 0xff00) | cpu_m68k_get_ccr(env); - __put_user(mask, &sc->sc_mask); - __put_user(env->aregs[7], &sc->sc_usp); - __put_user(env->dregs[0], &sc->sc_d0); - __put_user(env->dregs[1], &sc->sc_d1); - __put_user(env->aregs[0], &sc->sc_a0); - __put_user(env->aregs[1], &sc->sc_a1); - __put_user(sr, &sc->sc_sr); - __put_user(env->pc, &sc->sc_pc); -} - -static void -restore_sigcontext(CPUM68KState *env, struct target_sigcontext *sc) -{ - int temp; - - __get_user(env->aregs[7], &sc->sc_usp); - __get_user(env->dregs[0], &sc->sc_d0); - __get_user(env->dregs[1], &sc->sc_d1); - __get_user(env->aregs[0], &sc->sc_a0); - __get_user(env->aregs[1], &sc->sc_a1); - __get_user(env->pc, &sc->sc_pc); - __get_user(temp, &sc->sc_sr); - cpu_m68k_set_ccr(env, temp); -} - -/* - * Determine which stack to use.. - */ -static inline abi_ulong -get_sigframe(struct target_sigaction *ka, CPUM68KState *regs, - size_t frame_size) -{ - unsigned long sp; - - sp = regs->aregs[7]; - - /* This is the X/Open sanctioned signal stack switching. */ - if ((ka->sa_flags & TARGET_SA_ONSTACK) && (sas_ss_flags (sp) == 0)) { - sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; - } - - return ((sp - frame_size) & -8UL); -} - -static void setup_frame(int sig, struct target_sigaction *ka, - target_sigset_t *set, CPUM68KState *env) -{ - struct target_sigframe *frame; - abi_ulong frame_addr; - abi_ulong retcode_addr; - abi_ulong sc_addr; - int i; - - 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; - } - - __put_user(sig, &frame->sig); - - sc_addr = frame_addr + offsetof(struct target_sigframe, sc); - __put_user(sc_addr, &frame->psc); - - setup_sigcontext(&frame->sc, env, set->sig[0]); - - for(i = 1; i < TARGET_NSIG_WORDS; i++) { - __put_user(set->sig[i], &frame->extramask[i - 1]); - } - - /* Set up to return from userspace. */ - - retcode_addr = frame_addr + offsetof(struct target_sigframe, retcode); - __put_user(retcode_addr, &frame->pretcode); - - /* moveq #,d0; trap #0 */ - - __put_user(0x70004e40 + (TARGET_NR_sigreturn << 16), - (uint32_t *)(frame->retcode)); - - /* Set up to return from userspace */ - - env->aregs[7] = frame_addr; - env->pc = ka->_sa_handler; - - unlock_user_struct(frame, frame_addr, 1); - return; - -give_sigsegv: - force_sigsegv(sig); -} - -static inline void target_rt_save_fpu_state(struct target_ucontext *uc, - CPUM68KState *env) -{ - int i; - target_fpregset_t *fpregs = &uc->tuc_mcontext.fpregs; - - __put_user(env->fpcr, &fpregs->f_fpcntl[0]); - __put_user(env->fpsr, &fpregs->f_fpcntl[1]); - /* fpiar is not emulated */ - - for (i = 0; i < 8; i++) { - uint32_t high = env->fregs[i].d.high << 16; - __put_user(high, &fpregs->f_fpregs[i * 3]); - __put_user(env->fregs[i].d.low, - (uint64_t *)&fpregs->f_fpregs[i * 3 + 1]); - } -} - -static inline int target_rt_setup_ucontext(struct target_ucontext *uc, - CPUM68KState *env) -{ - target_greg_t *gregs = uc->tuc_mcontext.gregs; - uint32_t sr = (env->sr & 0xff00) | cpu_m68k_get_ccr(env); - - __put_user(TARGET_MCONTEXT_VERSION, &uc->tuc_mcontext.version); - __put_user(env->dregs[0], &gregs[0]); - __put_user(env->dregs[1], &gregs[1]); - __put_user(env->dregs[2], &gregs[2]); - __put_user(env->dregs[3], &gregs[3]); - __put_user(env->dregs[4], &gregs[4]); - __put_user(env->dregs[5], &gregs[5]); - __put_user(env->dregs[6], &gregs[6]); - __put_user(env->dregs[7], &gregs[7]); - __put_user(env->aregs[0], &gregs[8]); - __put_user(env->aregs[1], &gregs[9]); - __put_user(env->aregs[2], &gregs[10]); - __put_user(env->aregs[3], &gregs[11]); - __put_user(env->aregs[4], &gregs[12]); - __put_user(env->aregs[5], &gregs[13]); - __put_user(env->aregs[6], &gregs[14]); - __put_user(env->aregs[7], &gregs[15]); - __put_user(env->pc, &gregs[16]); - __put_user(sr, &gregs[17]); - - target_rt_save_fpu_state(uc, env); - - return 0; -} - -static inline void target_rt_restore_fpu_state(CPUM68KState *env, - struct target_ucontext *uc) -{ - int i; - target_fpregset_t *fpregs = &uc->tuc_mcontext.fpregs; - uint32_t fpcr; - - __get_user(fpcr, &fpregs->f_fpcntl[0]); - cpu_m68k_set_fpcr(env, fpcr); - __get_user(env->fpsr, &fpregs->f_fpcntl[1]); - /* fpiar is not emulated */ - - for (i = 0; i < 8; i++) { - uint32_t high; - __get_user(high, &fpregs->f_fpregs[i * 3]); - env->fregs[i].d.high = high >> 16; - __get_user(env->fregs[i].d.low, - (uint64_t *)&fpregs->f_fpregs[i * 3 + 1]); - } -} - -static inline int target_rt_restore_ucontext(CPUM68KState *env, - struct target_ucontext *uc) -{ - int temp; - target_greg_t *gregs = uc->tuc_mcontext.gregs; - - __get_user(temp, &uc->tuc_mcontext.version); - if (temp != TARGET_MCONTEXT_VERSION) - goto badframe; - - /* restore passed registers */ - __get_user(env->dregs[0], &gregs[0]); - __get_user(env->dregs[1], &gregs[1]); - __get_user(env->dregs[2], &gregs[2]); - __get_user(env->dregs[3], &gregs[3]); - __get_user(env->dregs[4], &gregs[4]); - __get_user(env->dregs[5], &gregs[5]); - __get_user(env->dregs[6], &gregs[6]); - __get_user(env->dregs[7], &gregs[7]); - __get_user(env->aregs[0], &gregs[8]); - __get_user(env->aregs[1], &gregs[9]); - __get_user(env->aregs[2], &gregs[10]); - __get_user(env->aregs[3], &gregs[11]); - __get_user(env->aregs[4], &gregs[12]); - __get_user(env->aregs[5], &gregs[13]); - __get_user(env->aregs[6], &gregs[14]); - __get_user(env->aregs[7], &gregs[15]); - __get_user(env->pc, &gregs[16]); - __get_user(temp, &gregs[17]); - cpu_m68k_set_ccr(env, temp); - - target_rt_restore_fpu_state(env, uc); - - return 0; - -badframe: - return 1; -} - -static void setup_rt_frame(int sig, struct target_sigaction *ka, - target_siginfo_t *info, - target_sigset_t *set, CPUM68KState *env) -{ - struct target_rt_sigframe *frame; - abi_ulong frame_addr; - abi_ulong retcode_addr; - abi_ulong info_addr; - abi_ulong uc_addr; - int err = 0; - int i; - - 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; - } - - __put_user(sig, &frame->sig); - - info_addr = frame_addr + offsetof(struct target_rt_sigframe, info); - __put_user(info_addr, &frame->pinfo); - - uc_addr = frame_addr + offsetof(struct target_rt_sigframe, uc); - __put_user(uc_addr, &frame->puc); - - tswap_siginfo(&frame->info, info); - - /* Create the ucontext */ - - __put_user(0, &frame->uc.tuc_flags); - __put_user(0, &frame->uc.tuc_link); - __put_user(target_sigaltstack_used.ss_sp, - &frame->uc.tuc_stack.ss_sp); - __put_user(sas_ss_flags(env->aregs[7]), - &frame->uc.tuc_stack.ss_flags); - __put_user(target_sigaltstack_used.ss_size, - &frame->uc.tuc_stack.ss_size); - err |= target_rt_setup_ucontext(&frame->uc, env); - - if (err) - goto give_sigsegv; - - for(i = 0; i < TARGET_NSIG_WORDS; i++) { - __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); - } - - /* Set up to return from userspace. */ - - retcode_addr = frame_addr + offsetof(struct target_sigframe, retcode); - __put_user(retcode_addr, &frame->pretcode); - - /* moveq #,d0; notb d0; trap #0 */ - - __put_user(0x70004600 + ((TARGET_NR_rt_sigreturn ^ 0xff) << 16), - (uint32_t *)(frame->retcode + 0)); - __put_user(0x4e40, (uint16_t *)(frame->retcode + 4)); - - if (err) - goto give_sigsegv; - - /* Set up to return from userspace */ - - env->aregs[7] = frame_addr; - env->pc = ka->_sa_handler; - - unlock_user_struct(frame, frame_addr, 1); - return; - -give_sigsegv: - unlock_user_struct(frame, frame_addr, 1); - force_sigsegv(sig); -} - -long do_sigreturn(CPUM68KState *env) -{ - struct target_sigframe *frame; - abi_ulong frame_addr = env->aregs[7] - 4; - target_sigset_t target_set; - sigset_t set; - int i; - - trace_user_do_sigreturn(env, frame_addr); - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; - - /* set blocked signals */ - - __get_user(target_set.sig[0], &frame->sc.sc_mask); - - 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 registers */ - - restore_sigcontext(env, &frame->sc); - - unlock_user_struct(frame, frame_addr, 0); - return -TARGET_QEMU_ESIGRETURN; - -badframe: - force_sig(TARGET_SIGSEGV); - return -TARGET_QEMU_ESIGRETURN; -} - -long do_rt_sigreturn(CPUM68KState *env) -{ - struct target_rt_sigframe *frame; - abi_ulong frame_addr = env->aregs[7] - 4; - 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 registers */ - - if (target_rt_restore_ucontext(env, &frame->uc)) - goto badframe; - - if (do_sigaltstack(frame_addr + - offsetof(struct target_rt_sigframe, uc.tuc_stack), - 0, get_sp_from_cpustate(env)) == -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_ALPHA) struct target_sigcontext { |