diff options
| -rw-r--r-- | linux-user/m68k/signal.c | 410 | ||||
| -rw-r--r-- | linux-user/m68k/target_signal.h | 6 | ||||
| -rw-r--r-- | linux-user/signal.c | 407 |
3 files changed, 415 insertions, 408 deletions
diff --git a/linux-user/m68k/signal.c b/linux-user/m68k/signal.c index 02ca338b6c..fc72468a81 100644 --- a/linux-user/m68k/signal.c +++ b/linux-user/m68k/signal.c @@ -16,3 +16,413 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. */ +#include "qemu/osdep.h" +#include "qemu.h" +#include "target_signal.h" +#include "signal-common.h" +#include "linux-user/trace.h" + +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); +} + +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; +} + +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; +} diff --git a/linux-user/m68k/target_signal.h b/linux-user/m68k/target_signal.h index 9d2d7343f8..29e0c01191 100644 --- a/linux-user/m68k/target_signal.h +++ b/linux-user/m68k/target_signal.h @@ -26,5 +26,9 @@ static inline abi_ulong get_sp_from_cpustate(CPUM68KState *state) return state->aregs[7]; } - +void setup_frame(int sig, struct target_sigaction *ka, + target_sigset_t *set, CPUM68KState *env); +void setup_rt_frame(int sig, struct target_sigaction *ka, + target_siginfo_t *info, + target_sigset_t *set, CPUM68KState *env); #endif /* M68K_TARGET_SIGNAL_H */ diff --git a/linux-user/signal.c b/linux-user/signal.c index 32a9405e84..16b1caad8b 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 { |