diff options
| -rw-r--r-- | linux-user/signal.c | 1543 |
1 files changed, 791 insertions, 752 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c index 96e86c0a29..04c21d0ccd 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -157,7 +157,7 @@ static void target_to_host_sigset_internal(sigset_t *d, if (target_sigismember(s, i)) { sigaddset(d, target_to_host_signal(i)); } - } + } } void target_to_host_sigset(sigset_t *d, const target_sigset_t *s) @@ -250,18 +250,18 @@ static inline void host_to_target_siginfo_noswap(target_siginfo_t *tinfo, tinfo->si_code = info->si_code; if (sig == TARGET_SIGILL || sig == TARGET_SIGFPE || sig == TARGET_SIGSEGV - || sig == TARGET_SIGBUS || sig == TARGET_SIGTRAP) { + || sig == TARGET_SIGBUS || sig == TARGET_SIGTRAP) { /* Should never come here, but who knows. The information for the target is irrelevant. */ tinfo->_sifields._sigfault._addr = 0; } else if (sig == TARGET_SIGIO) { tinfo->_sifields._sigpoll._band = info->si_band; - tinfo->_sifields._sigpoll._fd = info->si_fd; + tinfo->_sifields._sigpoll._fd = info->si_fd; } else if (sig == TARGET_SIGCHLD) { tinfo->_sifields._sigchld._pid = info->si_pid; tinfo->_sifields._sigchld._uid = info->si_uid; tinfo->_sifields._sigchld._status - = host_to_target_waitstatus(info->si_status); + = host_to_target_waitstatus(info->si_status); tinfo->_sifields._sigchld._utime = info->si_utime; tinfo->_sifields._sigchld._stime = info->si_stime; } else if (sig >= TARGET_SIGRTMIN) { @@ -269,7 +269,7 @@ static inline void host_to_target_siginfo_noswap(target_siginfo_t *tinfo, tinfo->_sifields._rt._uid = info->si_uid; /* XXX: potential problem if 64 bit */ tinfo->_sifields._rt._sigval.sival_ptr - = (abi_ulong)(unsigned long)info->si_value.sival_ptr; + = (abi_ulong)(unsigned long)info->si_value.sival_ptr; } } @@ -723,75 +723,75 @@ int do_sigaction(int sig, const struct target_sigaction *act, /* from the Linux kernel */ struct target_fpreg { - uint16_t significand[4]; - uint16_t exponent; + uint16_t significand[4]; + uint16_t exponent; }; struct target_fpxreg { - uint16_t significand[4]; - uint16_t exponent; - uint16_t padding[3]; + uint16_t significand[4]; + uint16_t exponent; + uint16_t padding[3]; }; struct target_xmmreg { - abi_ulong element[4]; + abi_ulong element[4]; }; struct target_fpstate { - /* Regular FPU environment */ - abi_ulong cw; - abi_ulong sw; - abi_ulong tag; - abi_ulong ipoff; - abi_ulong cssel; - abi_ulong dataoff; - abi_ulong datasel; - struct target_fpreg _st[8]; - uint16_t status; - uint16_t magic; /* 0xffff = regular FPU data only */ - - /* FXSR FPU environment */ - abi_ulong _fxsr_env[6]; /* FXSR FPU env is ignored */ - abi_ulong mxcsr; - abi_ulong reserved; - struct target_fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */ - struct target_xmmreg _xmm[8]; - abi_ulong padding[56]; + /* Regular FPU environment */ + abi_ulong cw; + abi_ulong sw; + abi_ulong tag; + abi_ulong ipoff; + abi_ulong cssel; + abi_ulong dataoff; + abi_ulong datasel; + struct target_fpreg _st[8]; + uint16_t status; + uint16_t magic; /* 0xffff = regular FPU data only */ + + /* FXSR FPU environment */ + abi_ulong _fxsr_env[6]; /* FXSR FPU env is ignored */ + abi_ulong mxcsr; + abi_ulong reserved; + struct target_fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */ + struct target_xmmreg _xmm[8]; + abi_ulong padding[56]; }; #define X86_FXSR_MAGIC 0x0000 struct target_sigcontext { - uint16_t gs, __gsh; - uint16_t fs, __fsh; - uint16_t es, __esh; - uint16_t ds, __dsh; - abi_ulong edi; - abi_ulong esi; - abi_ulong ebp; - abi_ulong esp; - abi_ulong ebx; - abi_ulong edx; - abi_ulong ecx; - abi_ulong eax; - abi_ulong trapno; - abi_ulong err; - abi_ulong eip; - uint16_t cs, __csh; - abi_ulong eflags; - abi_ulong esp_at_signal; - uint16_t ss, __ssh; - abi_ulong fpstate; /* pointer */ - abi_ulong oldmask; - abi_ulong cr2; + uint16_t gs, __gsh; + uint16_t fs, __fsh; + uint16_t es, __esh; + uint16_t ds, __dsh; + abi_ulong edi; + abi_ulong esi; + abi_ulong ebp; + abi_ulong esp; + abi_ulong ebx; + abi_ulong edx; + abi_ulong ecx; + abi_ulong eax; + abi_ulong trapno; + abi_ulong err; + abi_ulong eip; + uint16_t cs, __csh; + abi_ulong eflags; + abi_ulong esp_at_signal; + uint16_t ss, __ssh; + abi_ulong fpstate; /* pointer */ + abi_ulong oldmask; + abi_ulong cr2; }; struct target_ucontext { - abi_ulong tuc_flags; - abi_ulong tuc_link; - target_stack_t tuc_stack; - struct target_sigcontext tuc_mcontext; - target_sigset_t tuc_sigmask; /* mask last for extensibility */ + abi_ulong tuc_flags; + abi_ulong tuc_link; + target_stack_t tuc_stack; + struct target_sigcontext tuc_mcontext; + target_sigset_t tuc_sigmask; /* mask last for extensibility */ }; struct sigframe @@ -828,7 +828,7 @@ static void setup_sigcontext(struct target_sigcontext *sc, CPUState *cs = CPU(x86_env_get_cpu(env)); uint16_t magic; - /* already locked in setup_frame() */ + /* already locked in setup_frame() */ __put_user(env->segs[R_GS].selector, (unsigned int *)&sc->gs); __put_user(env->segs[R_FS].selector, (unsigned int *)&sc->fs); __put_user(env->segs[R_ES].selector, (unsigned int *)&sc->es); @@ -849,13 +849,13 @@ static void setup_sigcontext(struct target_sigcontext *sc, __put_user(env->regs[R_ESP], &sc->esp_at_signal); __put_user(env->segs[R_SS].selector, (unsigned int *)&sc->ss); - cpu_x86_fsave(env, fpstate_addr, 1); - fpstate->status = fpstate->sw; - magic = 0xffff; + cpu_x86_fsave(env, fpstate_addr, 1); + fpstate->status = fpstate->sw; + magic = 0xffff; __put_user(magic, &fpstate->magic); __put_user(fpstate_addr, &sc->fpstate); - /* non-iBCS2 extensions.. */ + /* non-iBCS2 extensions.. */ __put_user(mask, &sc->oldmask); __put_user(env->cr[2], &sc->cr2); } @@ -867,110 +867,112 @@ static void setup_sigcontext(struct target_sigcontext *sc, static inline abi_ulong get_sigframe(struct target_sigaction *ka, CPUX86State *env, size_t frame_size) { - unsigned long esp; + unsigned long esp; - /* Default to using normal stack */ - esp = env->regs[R_ESP]; - /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa_flags & TARGET_SA_ONSTACK) { - if (sas_ss_flags(esp) == 0) - esp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; + /* Default to using normal stack */ + esp = env->regs[R_ESP]; + /* This is the X/Open sanctioned signal stack switching. */ + if (ka->sa_flags & TARGET_SA_ONSTACK) { + if (sas_ss_flags(esp) == 0) { + esp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; } + } else { - /* This is the legacy signal stack switching. */ - else + /* This is the legacy signal stack switching. */ if ((env->segs[R_SS].selector & 0xffff) != __USER_DS && - !(ka->sa_flags & TARGET_SA_RESTORER) && - ka->sa_restorer) { + !(ka->sa_flags & TARGET_SA_RESTORER) && + ka->sa_restorer) { esp = (unsigned long) ka->sa_restorer; - } - return (esp - frame_size) & -8ul; + } + } + return (esp - frame_size) & -8ul; } /* compare linux/arch/i386/kernel/signal.c:setup_frame() */ static void setup_frame(int sig, struct target_sigaction *ka, - target_sigset_t *set, CPUX86State *env) + target_sigset_t *set, CPUX86State *env) { - abi_ulong frame_addr; - struct sigframe *frame; - int i; + abi_ulong frame_addr; + struct sigframe *frame; + int i; - frame_addr = get_sigframe(ka, env, sizeof(*frame)); - trace_user_setup_frame(env, frame_addr); + 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; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) + goto give_sigsegv; __put_user(sig, &frame->sig); - setup_sigcontext(&frame->sc, &frame->fpstate, env, set->sig[0], - frame_addr + offsetof(struct sigframe, fpstate)); + setup_sigcontext(&frame->sc, &frame->fpstate, env, set->sig[0], + frame_addr + offsetof(struct sigframe, fpstate)); for(i = 1; i < TARGET_NSIG_WORDS; i++) { __put_user(set->sig[i], &frame->extramask[i - 1]); } - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - if (ka->sa_flags & TARGET_SA_RESTORER) { + /* Set up to return from userspace. If provided, use a stub + already in userspace. */ + if (ka->sa_flags & TARGET_SA_RESTORER) { __put_user(ka->sa_restorer, &frame->pretcode); - } else { - uint16_t val16; - abi_ulong retcode_addr; - retcode_addr = frame_addr + offsetof(struct sigframe, retcode); + } else { + uint16_t val16; + abi_ulong retcode_addr; + retcode_addr = frame_addr + offsetof(struct sigframe, retcode); __put_user(retcode_addr, &frame->pretcode); - /* This is popl %eax ; movl $,%eax ; int $0x80 */ - val16 = 0xb858; + /* This is popl %eax ; movl $,%eax ; int $0x80 */ + val16 = 0xb858; __put_user(val16, (uint16_t *)(frame->retcode+0)); __put_user(TARGET_NR_sigreturn, (int *)(frame->retcode+2)); - val16 = 0x80cd; + val16 = 0x80cd; __put_user(val16, (uint16_t *)(frame->retcode+6)); - } + } - /* Set up registers for signal handler */ - env->regs[R_ESP] = frame_addr; - env->eip = ka->_sa_handler; + /* Set up registers for signal handler */ + env->regs[R_ESP] = frame_addr; + env->eip = ka->_sa_handler; - cpu_x86_load_seg(env, R_DS, __USER_DS); - cpu_x86_load_seg(env, R_ES, __USER_DS); - cpu_x86_load_seg(env, R_SS, __USER_DS); - cpu_x86_load_seg(env, R_CS, __USER_CS); - env->eflags &= ~TF_MASK; + cpu_x86_load_seg(env, R_DS, __USER_DS); + cpu_x86_load_seg(env, R_ES, __USER_DS); + cpu_x86_load_seg(env, R_SS, __USER_DS); + cpu_x86_load_seg(env, R_CS, __USER_CS); + env->eflags &= ~TF_MASK; - unlock_user_struct(frame, frame_addr, 1); + unlock_user_struct(frame, frame_addr, 1); - return; + return; give_sigsegv: - if (sig == TARGET_SIGSEGV) - ka->_sa_handler = TARGET_SIG_DFL; - force_sig(TARGET_SIGSEGV /* , current */); + if (sig == TARGET_SIGSEGV) { + ka->_sa_handler = TARGET_SIG_DFL; + } + force_sig(TARGET_SIGSEGV /* , current */); } /* compare linux/arch/i386/kernel/signal.c:setup_rt_frame() */ static void setup_rt_frame(int sig, struct target_sigaction *ka, target_siginfo_t *info, - target_sigset_t *set, CPUX86State *env) + target_sigset_t *set, CPUX86State *env) { - abi_ulong frame_addr, addr; - struct rt_sigframe *frame; - int i; + abi_ulong frame_addr, addr; + struct rt_sigframe *frame; + int i; - frame_addr = get_sigframe(ka, env, sizeof(*frame)); - trace_user_setup_rt_frame(env, frame_addr); + 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; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) + goto give_sigsegv; __put_user(sig, &frame->sig); - addr = frame_addr + offsetof(struct rt_sigframe, info); + addr = frame_addr + offsetof(struct rt_sigframe, info); __put_user(addr, &frame->pinfo); - addr = frame_addr + offsetof(struct rt_sigframe, uc); + addr = frame_addr + offsetof(struct rt_sigframe, uc); __put_user(addr, &frame->puc); tswap_siginfo(&frame->info, info); - /* Create the ucontext. */ + /* 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); @@ -985,81 +987,82 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); } - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - if (ka->sa_flags & TARGET_SA_RESTORER) { + /* Set up to return from userspace. If provided, use a stub + already in userspace. */ + if (ka->sa_flags & TARGET_SA_RESTORER) { __put_user(ka->sa_restorer, &frame->pretcode); - } else { - uint16_t val16; - addr = frame_addr + offsetof(struct rt_sigframe, retcode); + } else { + uint16_t val16; + addr = frame_addr + offsetof(struct rt_sigframe, retcode); __put_user(addr, &frame->pretcode); - /* This is movl $,%eax ; int $0x80 */ + /* This is movl $,%eax ; int $0x80 */ __put_user(0xb8, (char *)(frame->retcode+0)); __put_user(TARGET_NR_rt_sigreturn, (int *)(frame->retcode+1)); - val16 = 0x80cd; + val16 = 0x80cd; __put_user(val16, (uint16_t *)(frame->retcode+5)); - } + } - /* Set up registers for signal handler */ - env->regs[R_ESP] = frame_addr; - env->eip = ka->_sa_handler; + /* Set up registers for signal handler */ + env->regs[R_ESP] = frame_addr; + env->eip = ka->_sa_handler; - cpu_x86_load_seg(env, R_DS, __USER_DS); - cpu_x86_load_seg(env, R_ES, __USER_DS); - cpu_x86_load_seg(env, R_SS, __USER_DS); - cpu_x86_load_seg(env, R_CS, __USER_CS); - env->eflags &= ~TF_MASK; + cpu_x86_load_seg(env, R_DS, __USER_DS); + cpu_x86_load_seg(env, R_ES, __USER_DS); + cpu_x86_load_seg(env, R_SS, __USER_DS); + cpu_x86_load_seg(env, R_CS, __USER_CS); + env->eflags &= ~TF_MASK; - unlock_user_struct(frame, frame_addr, 1); + unlock_user_struct(frame, frame_addr, 1); - return; + return; give_sigsegv: - if (sig == TARGET_SIGSEGV) - ka->_sa_handler = TARGET_SIG_DFL; - force_sig(TARGET_SIGSEGV /* , current */); + if (sig == TARGET_SIGSEGV) { + ka->_sa_handler = TARGET_SIG_DFL; + } + force_sig(TARGET_SIGSEGV /* , current */); } static int restore_sigcontext(CPUX86State *env, struct target_sigcontext *sc, int *peax) { - unsigned int err = 0; - abi_ulong fpstate_addr; - unsigned int tmpflags; - - cpu_x86_load_seg(env, R_GS, tswap16(sc->gs)); - cpu_x86_load_seg(env, R_FS, tswap16(sc->fs)); - cpu_x86_load_seg(env, R_ES, tswap16(sc->es)); - cpu_x86_load_seg(env, R_DS, tswap16(sc->ds)); - - env->regs[R_EDI] = tswapl(sc->edi); - env->regs[R_ESI] = tswapl(sc->esi); - env->regs[R_EBP] = tswapl(sc->ebp); - env->regs[R_ESP] = tswapl(sc->esp); - env->regs[R_EBX] = tswapl(sc->ebx); - env->regs[R_EDX] = tswapl(sc->edx); - env->regs[R_ECX] = tswapl(sc->ecx); - env->eip = tswapl(sc->eip); - - cpu_x86_load_seg(env, R_CS, lduw_p(&sc->cs) | 3); - cpu_x86_load_seg(env, R_SS, lduw_p(&sc->ss) | 3); - - tmpflags = tswapl(sc->eflags); - env->eflags = (env->eflags & ~0x40DD5) | (tmpflags & 0x40DD5); - // regs->orig_eax = -1; /* disable syscall checks */ - - fpstate_addr = tswapl(sc->fpstate); - if (fpstate_addr != 0) { - if (!access_ok(VERIFY_READ, fpstate_addr, - sizeof(struct target_fpstate))) - goto badframe; - cpu_x86_frstor(env, fpstate_addr, 1); - } + unsigned int err = 0; + abi_ulong fpstate_addr; + unsigned int tmpflags; + + cpu_x86_load_seg(env, R_GS, tswap16(sc->gs)); + cpu_x86_load_seg(env, R_FS, tswap16(sc->fs)); + cpu_x86_load_seg(env, R_ES, tswap16(sc->es)); + cpu_x86_load_seg(env, R_DS, tswap16(sc->ds)); + + env->regs[R_EDI] = tswapl(sc->edi); + env->regs[R_ESI] = tswapl(sc->esi); + env->regs[R_EBP] = tswapl(sc->ebp); + env->regs[R_ESP] = tswapl(sc->esp); + env->regs[R_EBX] = tswapl(sc->ebx); + env->regs[R_EDX] = tswapl(sc->edx); + env->regs[R_ECX] = tswapl(sc->ecx); + env->eip = tswapl(sc->eip); + + cpu_x86_load_seg(env, R_CS, lduw_p(&sc->cs) | 3); + cpu_x86_load_seg(env, R_SS, lduw_p(&sc->ss) | 3); + + tmpflags = tswapl(sc->eflags); + env->eflags = (env->eflags & ~0x40DD5) | (tmpflags & 0x40DD5); + // regs->orig_eax = -1; /* disable syscall checks */ + + fpstate_addr = tswapl(sc->fpstate); + if (fpstate_addr != 0) { + if (!access_ok(VERIFY_READ, fpstate_addr, + sizeof(struct target_fpstate))) + goto badframe; + cpu_x86_frstor(env, fpstate_addr, 1); + } - *peax = tswapl(sc->eax); - return err; + *peax = tswapl(sc->eax); + return err; badframe: - return 1; + return 1; } long do_sigreturn(CPUX86State *env) @@ -1096,32 +1099,34 @@ badframe: long do_rt_sigreturn(CPUX86State *env) { - abi_ulong frame_addr; - struct rt_sigframe *frame; - sigset_t set; - int eax; + abi_ulong frame_addr; + struct rt_sigframe *frame; + sigset_t set; + int eax; - frame_addr = env->regs[R_ESP] - 4; - 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); - do_sigprocmask(SIG_SETMASK, &set, NULL); + frame_addr = env->regs[R_ESP] - 4; + 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); + do_sigprocmask(SIG_SETMASK, &set, NULL); - if (restore_sigcontext(env, &frame->uc.tuc_mcontext, &eax)) - goto badframe; + if (restore_sigcontext(env, &frame->uc.tuc_mcontext, &eax)) { + goto badframe; + } - if (do_sigaltstack(frame_addr + offsetof(struct rt_sigframe, uc.tuc_stack), 0, - get_sp_from_cpustate(env)) == -EFAULT) - goto badframe; + if (do_sigaltstack(frame_addr + offsetof(struct rt_sigframe, uc.tuc_stack), 0, + get_sp_from_cpustate(env)) == -EFAULT) { + goto badframe; + } - unlock_user_struct(frame, frame_addr, 0); - return eax; + unlock_user_struct(frame, frame_addr, 0); + return eax; badframe: - unlock_user_struct(frame, frame_addr, 0); - force_sig(TARGET_SIGSEGV); - return 0; + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV); + return 0; } #elif defined(TARGET_AARCH64) @@ -1402,27 +1407,27 @@ long do_sigreturn(CPUARMState *env) #elif defined(TARGET_ARM) struct target_sigcontext { - abi_ulong trap_no; - abi_ulong error_code; - abi_ulong oldmask; - abi_ulong arm_r0; - abi_ulong arm_r1; - abi_ulong arm_r2; - abi_ulong arm_r3; - abi_ulong arm_r4; - abi_ulong arm_r5; - abi_ulong arm_r6; - abi_ulong arm_r7; - abi_ulong arm_r8; - abi_ulong arm_r9; - abi_ulong arm_r10; - abi_ulong arm_fp; - abi_ulong arm_ip; - abi_ulong arm_sp; - abi_ulong arm_lr; - abi_ulong arm_pc; - abi_ulong arm_cpsr; - abi_ulong fault_address; + abi_ulong trap_no; + abi_ulong error_code; + abi_ulong oldmask; + abi_ulong arm_r0; + abi_ulong arm_r1; + abi_ulong arm_r2; + abi_ulong arm_r3; + abi_ulong arm_r4; + abi_ulong arm_r5; + abi_ulong arm_r6; + abi_ulong arm_r7; + abi_ulong arm_r8; + abi_ulong arm_r9; + abi_ulong arm_r10; + abi_ulong arm_fp; + abi_ulong arm_ip; + abi_ulong arm_sp; + abi_ulong arm_lr; + abi_ulong arm_pc; + abi_ulong arm_cpsr; + abi_ulong fault_address; }; struct target_ucontext_v1 { @@ -1581,7 +1586,7 @@ get_sigframe(struct target_sigaction *ka, CPUARMState *regs, int framesize) static void setup_return(CPUARMState *env, struct target_sigaction *ka, - abi_ulong *rc, abi_ulong frame_addr, int usig, abi_ulong rc_addr) + abi_ulong *rc, abi_ulong frame_addr, int usig, abi_ulong rc_addr) { abi_ulong handler = ka->_sa_handler; abi_ulong retcode; @@ -1691,42 +1696,44 @@ static void setup_sigframe_v2(struct target_ucontext_v2 *uc, static void setup_frame_v1(int usig, struct target_sigaction *ka, target_sigset_t *set, CPUARMState *regs) { - struct sigframe_v1 *frame; - abi_ulong frame_addr = get_sigframe(ka, regs, sizeof(*frame)); - int i; + struct sigframe_v1 *frame; + abi_ulong frame_addr = get_sigframe(ka, regs, sizeof(*frame)); + int i; - trace_user_setup_frame(regs, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - return; + trace_user_setup_frame(regs, frame_addr); + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + return; + } - setup_sigcontext(&frame->sc, regs, set->sig[0]); + setup_sigcontext(&frame->sc, regs, set->sig[0]); for(i = 1; i < TARGET_NSIG_WORDS; i++) { __put_user(set->sig[i], &frame->extramask[i - 1]); } - setup_return(regs, ka, &frame->retcode, frame_addr, usig, - frame_addr + offsetof(struct sigframe_v1, retcode)); + setup_return(regs, ka, &frame->retcode, frame_addr, usig, + frame_addr + offsetof(struct sigframe_v1, retcode)); - unlock_user_struct(frame, frame_addr, 1); + unlock_user_struct(frame, frame_addr, 1); } static void setup_frame_v2(int usig, struct target_sigaction *ka, target_sigset_t *set, CPUARMState *regs) { - struct sigframe_v2 *frame; - abi_ulong frame_addr = get_sigframe(ka, regs, sizeof(*frame)); + struct sigframe_v2 *frame; + abi_ulong frame_addr = get_sigframe(ka, regs, sizeof(*frame)); - trace_user_setup_frame(regs, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - return; + trace_user_setup_frame(regs, frame_addr); + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + return; + } - setup_sigframe_v2(&frame->uc, set, regs); + setup_sigframe_v2(&frame->uc, set, regs); - setup_return(regs, ka, &frame->retcode, frame_addr, usig, - frame_addr + offsetof(struct sigframe_v2, retcode)); + setup_return(regs, ka, &frame->retcode, frame_addr, usig, + frame_addr + offsetof(struct sigframe_v2, retcode)); - unlock_user_struct(frame, frame_addr, 1); + unlock_user_struct(frame, frame_addr, 1); } static void setup_frame(int usig, struct target_sigaction *ka, @@ -1744,70 +1751,72 @@ static void setup_rt_frame_v1(int usig, struct target_sigaction *ka, target_siginfo_t *info, target_sigset_t *set, CPUARMState *env) { - struct rt_sigframe_v1 *frame; - abi_ulong frame_addr = get_sigframe(ka, env, sizeof(*frame)); - struct target_sigaltstack stack; - int i; - abi_ulong info_addr, uc_addr; + struct rt_sigframe_v1 *frame; + abi_ulong frame_addr = get_sigframe(ka, env, sizeof(*frame)); + struct target_sigaltstack stack; + int i; + abi_ulong info_addr, uc_addr; - trace_user_setup_rt_frame(env, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - return /* 1 */; + trace_user_setup_rt_frame(env, frame_addr); + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + return /* 1 */; + } - info_addr = frame_addr + offsetof(struct rt_sigframe_v1, info); - __put_user(info_addr, &frame->pinfo); - uc_addr = frame_addr + offsetof(struct rt_sigframe_v1, uc); - __put_user(uc_addr, &frame->puc); - tswap_siginfo(&frame->info, info); + info_addr = frame_addr + offsetof(struct rt_sigframe_v1, info); + __put_user(info_addr, &frame->pinfo); + uc_addr = frame_addr + offsetof(struct rt_sigframe_v1, uc); + __put_user(uc_addr, &frame->puc); + tswap_siginfo(&frame->info, info); - /* Clear all the bits of the ucontext we don't use. */ - memset(&frame->uc, 0, offsetof(struct target_ucontext_v1, tuc_mcontext)); + /* Clear all the bits of the ucontext we don't use. */ + memset(&frame->uc, 0, offsetof(struct target_ucontext_v1, tuc_mcontext)); - memset(&stack, 0, sizeof(stack)); - __put_user(target_sigaltstack_used.ss_sp, &stack.ss_sp); - __put_user(target_sigaltstack_used.ss_size, &stack.ss_size); - __put_user(sas_ss_flags(get_sp_from_cpustate(env)), &stack.ss_flags); - memcpy(&frame->uc.tuc_stack, &stack, sizeof(stack)); + memset(&stack, 0, sizeof(stack)); + __put_user(target_sigaltstack_used.ss_sp, &stack.ss_sp); + __put_user(target_sigaltstack_used.ss_size, &stack.ss_size); + __put_user(sas_ss_flags(get_sp_from_cpustate(env)), &stack.ss_flags); + memcpy(&frame->uc.tuc_stack, &stack, sizeof(stack)); - setup_sigcontext(&frame->uc.tuc_mcontext, env, set->sig[0]); - for(i = 0; i < TARGET_NSIG_WORDS; i++) { - __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); - } + setup_sigcontext(&frame->uc.tuc_mcontext, env, set->sig[0]); + for(i = 0; i < TARGET_NSIG_WORDS; i++) { + __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); + } - setup_return(env, ka, &frame->retcode, frame_addr, usig, - frame_addr + offsetof(struct rt_sigframe_v1, retcode)); + setup_return(env, ka, &frame->retcode, frame_addr, usig, + frame_addr + offsetof(struct rt_sigframe_v1, retcode)); - env->regs[1] = info_addr; - env->regs[2] = uc_addr; + env->regs[1] = info_addr; + env->regs[2] = uc_addr; - unlock_user_struct(frame, frame_addr, 1); + unlock_user_struct(frame, frame_addr, 1); } static void setup_rt_frame_v2(int usig, struct target_sigaction *ka, target_siginfo_t *info, target_sigset_t *set, CPUARMState *env) { - struct rt_sigframe_v2 *frame; - abi_ulong frame_addr = get_sigframe(ka, env, sizeof(*frame)); - abi_ulong info_addr, uc_addr; + struct rt_sigframe_v2 *frame; + abi_ulong frame_addr = get_sigframe(ka, env, sizeof(*frame)); + abi_ulong info_addr, uc_addr; - trace_user_setup_rt_frame(env, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - return /* 1 */; + trace_user_setup_rt_frame(env, frame_addr); + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + return /* 1 */; + } - info_addr = frame_addr + offsetof(struct rt_sigframe_v2, info); - uc_addr = frame_addr + offsetof(struct rt_sigframe_v2, uc); - tswap_siginfo(&frame->info, info); + info_addr = frame_addr + offsetof(struct rt_sigframe_v2, info); + uc_addr = frame_addr + offsetof(struct rt_sigframe_v2, uc); + tswap_siginfo(&frame->info, info); - setup_sigframe_v2(&frame->uc, set, env); + setup_sigframe_v2(&frame->uc, set, env); - setup_return(env, ka, &frame->retcode, frame_addr, usig, - frame_addr + offsetof(struct rt_sigframe_v2, retcode)); + setup_return(env, ka, &frame->retcode, frame_addr, usig, + frame_addr + offsetof(struct rt_sigframe_v2, retcode)); - env->regs[1] = info_addr; - env->regs[2] = uc_addr; + env->regs[1] = info_addr; + env->regs[2] = uc_addr; - unlock_user_struct(frame, frame_addr, 1); + unlock_user_struct(frame, frame_addr, 1); } static void setup_rt_frame(int usig, struct target_sigaction *ka, @@ -1824,8 +1833,8 @@ static void setup_rt_frame(int usig, struct target_sigaction *ka, static int restore_sigcontext(CPUARMState *env, struct target_sigcontext *sc) { - int err = 0; - uint32_t cpsr; + int err = 0; + uint32_t cpsr; __get_user(env->regs[0], &sc->arm_r0); __get_user(env->regs[1], &sc->arm_r1); @@ -1848,55 +1857,57 @@ restore_sigcontext(CPUARMState *env, struct target_sigcontext *sc) cpsr_write(env, cpsr, CPSR_USER | CPSR_EXEC, CPSRWriteByInstr); #endif - err |= !valid_user_regs(env); + err |= !valid_user_regs(env); - return err; + return err; } static long do_sigreturn_v1(CPUARMState *env) { - abi_ulong frame_addr; - struct sigframe_v1 *frame = NULL; - target_sigset_t set; - sigset_t host_set; - int i; - - /* - * Since we stacked the signal on a 64-bit boundary, - * then 'sp' should be word aligned here. If it's - * not, then the user is trying to mess with us. - */ - frame_addr = env->regs[13]; - trace_user_do_sigreturn(env, frame_addr); - if (frame_addr & 7) { - goto badframe; - } + abi_ulong frame_addr; + struct sigframe_v1 *frame = NULL; + target_sigset_t set; + sigset_t host_set; + int i; - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + /* + * Since we stacked the signal on a 64-bit boundary, + * then 'sp' should be word aligned here. If it's + * not, then the user is trying to mess with us. + */ + frame_addr = env->regs[13]; + trace_user_do_sigreturn(env, frame_addr); + if (frame_addr & 7) { + goto badframe; + } + + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } __get_user(set.sig[0], &frame->sc.oldmask); for(i = 1; i < TARGET_NSIG_WORDS; i++) { __get_user(set.sig[i], &frame->extramask[i - 1]); } - target_to_host_sigset_internal(&host_set, &set); - do_sigprocmask(SIG_SETMASK, &host_set, NULL); + target_to_host_sigset_internal(&host_set, &set); + do_sigprocmask(SIG_SETMASK, &host_set, NULL); - if (restore_sigcontext(env, &frame->sc)) - goto badframe; + if (restore_sigcontext(env, &frame->sc)) { + goto badframe; + } #if 0 - /* Send SIGTRAP if we're single-stepping */ - if (ptrace_cancel_bpt(current)) - send_sig(SIGTRAP, current, 1); + /* Send SIGTRAP if we're single-stepping */ + if (ptrace_cancel_bpt(current)) + send_sig(SIGTRAP, current, 1); #endif - unlock_user_struct(frame, frame_addr, 0); - return env->regs[0]; + unlock_user_struct(frame, frame_addr, 0); + return env->regs[0]; badframe: - force_sig(TARGET_SIGSEGV /* , current */); - return 0; + force_sig(TARGET_SIGSEGV /* , current */); + return 0; } static abi_ulong *restore_sigframe_v2_vfp(CPUARMState *env, abi_ulong *regspace) @@ -1987,7 +1998,7 @@ static int do_sigframe_return_v2(CPUARMState *env, target_ulong frame_addr, #if 0 /* Send SIGTRAP if we're single-stepping */ if (ptrace_cancel_bpt(current)) - send_sig(SIGTRAP, current, 1); + send_sig(SIGTRAP, current, 1); #endif return 0; @@ -1995,33 +2006,35 @@ static int do_sigframe_return_v2(CPUARMState *env, target_ulong frame_addr, static long do_sigreturn_v2(CPUARMState *env) { - abi_ulong frame_addr; - struct sigframe_v2 *frame = NULL; - - /* - * Since we stacked the signal on a 64-bit boundary, - * then 'sp' should be word aligned here. If it's - * not, then the user is trying to mess with us. - */ - frame_addr = env->regs[13]; - trace_user_do_sigreturn(env, frame_addr); - if (frame_addr & 7) { - goto badframe; - } + abi_ulong frame_addr; + struct sigframe_v2 *frame = NULL; + + /* + * Since we stacked the signal on a 64-bit boundary, + * then 'sp' should be word aligned here. If it's + * not, then the user is trying to mess with us. + */ + frame_addr = env->regs[13]; + trace_user_do_sigreturn(env, frame_addr); + if (frame_addr & 7) { + goto badframe; + } - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } - if (do_sigframe_return_v2(env, frame_addr, &frame->uc)) - goto badframe; + if (do_sigframe_return_v2(env, frame_addr, &frame->uc)) { + goto badframe; + } - unlock_user_struct(frame, frame_addr, 0); - return env->regs[0]; + unlock_user_struct(frame, frame_addr, 0); + return env->regs[0]; badframe: - unlock_user_struct(frame, frame_addr, 0); - force_sig(TARGET_SIGSEGV /* , current */); - return 0; + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV /* , current */); + return 0; } long do_sigreturn(CPUARMState *env) @@ -2035,76 +2048,80 @@ long do_sigreturn(CPUARMState *env) static long do_rt_sigreturn_v1(CPUARMState *env) { - abi_ulong frame_addr; - struct rt_sigframe_v1 *frame = NULL; - sigset_t host_set; - - /* - * Since we stacked the signal on a 64-bit boundary, - * then 'sp' should be word aligned here. If it's - * not, then the user is trying to mess with us. - */ - frame_addr = env->regs[13]; - trace_user_do_rt_sigreturn(env, frame_addr); - if (frame_addr & 7) { - goto badframe; - } + abi_ulong frame_addr; + struct rt_sigframe_v1 *frame = NULL; + sigset_t host_set; - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + /* + * Since we stacked the signal on a 64-bit boundary, + * then 'sp' should be word aligned here. If it's + * not, then the user is trying to mess with us. + */ + frame_addr = env->regs[13]; + trace_user_do_rt_sigreturn(env, frame_addr); + if (frame_addr & 7) { + goto badframe; + } - target_to_host_sigset(&host_set, &frame->uc.tuc_sigmask); - do_sigprocmask(SIG_SETMASK, &host_set, NULL); + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } + + target_to_host_sigset(&host_set, &frame->uc.tuc_sigmask); + do_sigprocmask(SIG_SETMASK, &host_set, NULL); - if (restore_sigcontext(env, &frame->uc.tuc_mcontext)) - goto badframe; + if (restore_sigcontext(env, &frame->uc.tuc_mcontext)) { + goto badframe; + } - if (do_sigaltstack(frame_addr + offsetof(struct rt_sigframe_v1, uc.tuc_stack), 0, get_sp_from_cpustate(env)) == -EFAULT) - goto badframe; + if (do_sigaltstack(frame_addr + offsetof(struct rt_sigframe_v1, uc.tuc_stack), 0, get_sp_from_cpustate(env)) == -EFAULT) + goto badframe; #if 0 - /* Send SIGTRAP if we're single-stepping */ - if (ptrace_cancel_bpt(current)) - send_sig(SIGTRAP, current, 1); + /* Send SIGTRAP if we're single-stepping */ + if (ptrace_cancel_bpt(current)) + send_sig(SIGTRAP, current, 1); #endif - unlock_user_struct(frame, frame_addr, 0); - return env->regs[0]; + unlock_user_struct(frame, frame_addr, 0); + return env->regs[0]; badframe: - unlock_user_struct(frame, frame_addr, 0); - force_sig(TARGET_SIGSEGV /* , current */); - return 0; + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV /* , current */); + return 0; } static long do_rt_sigreturn_v2(CPUARMState *env) { - abi_ulong frame_addr; - struct rt_sigframe_v2 *frame = NULL; - - /* - * Since we stacked the signal on a 64-bit boundary, - * then 'sp' should be word aligned here. If it's - * not, then the user is trying to mess with us. - */ - frame_addr = env->regs[13]; - trace_user_do_rt_sigreturn(env, frame_addr); - if (frame_addr & 7) { - goto badframe; - } + abi_ulong frame_addr; + struct rt_sigframe_v2 *frame = NULL; - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + /* + * Since we stacked the signal on a 64-bit boundary, + * then 'sp' should be word aligned here. If it's + * not, then the user is trying to mess with us. + */ + frame_addr = env->regs[13]; + trace_user_do_rt_sigreturn(env, frame_addr); + if (frame_addr & 7) { + goto badframe; + } + + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } - if (do_sigframe_return_v2(env, frame_addr, &frame->uc)) - goto badframe; + if (do_sigframe_return_v2(env, frame_addr, &frame->uc)) { + goto badframe; + } - unlock_user_struct(frame, frame_addr, 0); - return env->regs[0]; + unlock_user_struct(frame, frame_addr, 0); + return env->regs[0]; badframe: - unlock_user_struct(frame, frame_addr, 0); - force_sig(TARGET_SIGSEGV /* , current */); - return 0; + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV /* , current */); + return 0; } long do_rt_sigreturn(CPUARMState *env) @@ -2122,83 +2139,83 @@ long do_rt_sigreturn(CPUARMState *env) /* This is what SunOS does, so shall I. */ struct target_sigcontext { - abi_ulong sigc_onstack; /* state to restore */ + abi_ulong sigc_onstack; /* state to restore */ - abi_ulong sigc_mask; /* sigmask to restore */ - abi_ulong sigc_sp; /* stack pointer */ - abi_ulong sigc_pc; /* program counter */ - abi_ulong sigc_npc; /* next program counter */ - abi_ulong sigc_psr; /* for condition codes etc */ - abi_ulong sigc_g1; /* User uses these two registers */ - abi_ulong sigc_o0; /* within the trampoline code. */ + abi_ulong sigc_mask; /* sigmask to restore */ + abi_ulong sigc_sp; /* stack pointer */ + abi_ulong sigc_pc; /* program counter */ + abi_ulong sigc_npc; /* next program counter */ + abi_ulong sigc_psr; /* for condition codes etc */ + abi_ulong sigc_g1; /* User uses these two registers */ + abi_ulong sigc_o0; /* within the trampoline code. */ - /* Now comes information regarding the users window set + /* Now comes information regarding the users window set * at the time of the signal. */ - abi_ulong sigc_oswins; /* outstanding windows */ + abi_ulong sigc_oswins; /* outstanding windows */ - /* stack ptrs for each regwin buf */ - char *sigc_spbuf[__SUNOS_MAXWIN]; + /* stack ptrs for each regwin buf */ + char *sigc_spbuf[__SUNOS_MAXWIN]; - /* Windows to restore after signal */ - struct { - abi_ulong locals[8]; - abi_ulong ins[8]; - } sigc_wbuf[__SUNOS_MAXWIN]; + /* Windows to restore after signal */ + struct { + abi_ulong locals[8]; + abi_ulong ins[8]; + } sigc_wbuf[__SUNOS_MAXWIN]; }; /* A Sparc stack frame */ struct sparc_stackf { - abi_ulong locals[8]; - abi_ulong ins[8]; - /* It's simpler to treat fp and callers_pc as elements of ins[] + abi_ulong locals[8]; + abi_ulong ins[8]; + /* It's simpler to treat fp and callers_pc as elements of ins[] * since we never need to access them ourselves. */ - char *structptr; - abi_ulong xargs[6]; - abi_ulong xxargs[1]; + char *structptr; + abi_ulong xargs[6]; + abi_ulong xxargs[1]; }; typedef struct { - struct { - abi_ulong psr; - abi_ulong pc; - abi_ulong npc; - abi_ulong y; - abi_ulong u_regs[16]; /* globals and ins */ - } si_regs; - int si_mask; + struct { + abi_ulong psr; + abi_ulong pc; + abi_ulong npc; + abi_ulong y; + abi_ulong u_regs[16]; /* globals and ins */ + } si_regs; + int si_mask; } __siginfo_t; typedef struct { - abi_ulong si_float_regs[32]; - unsigned long si_fsr; - unsigned long si_fpqdepth; - struct { - unsigned long *insn_addr; - unsigned long insn; - } si_fpqueue [16]; + abi_ulong si_float_regs[32]; + unsigned long si_fsr; + unsigned long si_fpqdepth; + struct { + unsigned long *insn_addr; + unsigned long insn; + } si_fpqueue [16]; } qemu_siginfo_fpu_t; struct target_signal_frame { - struct sparc_stackf ss; - __siginfo_t info; - abi_ulong fpu_save; - abi_ulong insns[2] __attribute__ ((aligned (8))); - abi_ulong extramask[TARGET_NSIG_WORDS - 1]; - abi_ulong extra_size; /* Should be 0 */ - qemu_siginfo_fpu_t fpu_state; + struct sparc_stackf ss; + __siginfo_t info; + abi_ulong fpu_save; + abi_ulong insns[2] __attribute__ ((aligned (8))); + abi_ulong extramask[TARGET_NSIG_WORDS - 1]; + abi_ulong extra_size; /* Should be 0 */ + qemu_siginfo_fpu_t fpu_state; }; struct target_rt_signal_frame { - struct sparc_stackf ss; - siginfo_t info; - abi_ulong regs[20]; - sigset_t mask; - abi_ulong fpu_save; - unsigned int insns[2]; - stack_t stack; - unsigned int extra_size; /* Should be 0 */ - qemu_siginfo_fpu_t fpu_state; + struct sparc_stackf ss; + siginfo_t info; + abi_ulong regs[20]; + sigset_t mask; + abi_ulong fpu_save; + unsigned int insns[2]; + stack_t stack; + unsigned int extra_size; /* Should be 0 */ + qemu_siginfo_fpu_t fpu_state; }; #define UREG_O0 16 @@ -2219,36 +2236,37 @@ static inline abi_ulong get_sigframe(struct target_sigaction *sa, CPUSPARCState *env, unsigned long framesize) { - abi_ulong sp; + abi_ulong sp; - sp = env->regwptr[UREG_FP]; + sp = env->regwptr[UREG_FP]; - /* This is the X/Open sanctioned signal stack switching. */ - if (sa->sa_flags & TARGET_SA_ONSTACK) { - if (!on_sig_stack(sp) - && !((target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size) & 7)) - sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; - } - return sp - framesize; + /* This is the X/Open sanctioned signal stack switching. */ + if (sa->sa_flags & TARGET_SA_ONSTACK) { + if (!on_sig_stack(sp) + && !((target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size) & 7)) { + sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; + } + } + return sp - framesize; } static int setup___siginfo(__siginfo_t *si, CPUSPARCState *env, abi_ulong mask) { - int err = 0, i; + int err = 0, i; __put_user(env->psr, &si->si_regs.psr); __put_user(env->pc, &si->si_regs.pc); __put_user(env->npc, &si->si_regs.npc); __put_user(env->y, &si->si_regs.y); - for (i=0; i < 8; i++) { + for (i=0; i < 8; i++) { __put_user(env->gregs[i], &si->si_regs.u_regs[i]); - } - for (i=0; i < 8; i++) { + } + for (i=0; i < 8; i++) { __put_user(env->regwptr[UREG_I0 + i], &si->si_regs.u_regs[i+8]); - } + } __put_user(mask, &si->si_mask); - return err; + return err; } #if 0 @@ -2256,7 +2274,7 @@ static int setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/ CPUSPARCState *env, unsigned long mask) { - int err = 0; + int err = 0; __put_user(mask, &sc->sigc_mask); __put_user(env->regwptr[UREG_SP], &sc->sigc_sp); @@ -2266,7 +2284,7 @@ setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/ __put_user(env->gregs[1], &sc->sigc_g1); __put_user(env->regwptr[UREG_O0], &sc->sigc_o0); - return err; + return err; } #endif #define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7))) @@ -2274,90 +2292,90 @@ setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/ static void setup_frame(int sig, struct target_sigaction *ka, target_sigset_t *set, CPUSPARCState *env) { - abi_ulong sf_addr; - struct target_signal_frame *sf; - int sigframe_size, err, i; + abi_ulong sf_addr; + struct target_signal_frame *sf; + int sigframe_size, err, i; - /* 1. Make sure everything is clean */ - //synchronize_user_stack(); + /* 1. Make sure everything is clean */ + //synchronize_user_stack(); - sigframe_size = NF_ALIGNEDSZ; - sf_addr = get_sigframe(ka, env, sigframe_size); - trace_user_setup_frame(env, sf_addr); + sigframe_size = NF_ALIGNEDSZ; + sf_addr = get_sigframe(ka, env, sigframe_size); + trace_user_setup_frame(env, sf_addr); - sf = lock_user(VERIFY_WRITE, sf_addr, - sizeof(struct target_signal_frame), 0); - if (!sf) - goto sigsegv; - + sf = lock_user(VERIFY_WRITE, sf_addr, + sizeof(struct target_signal_frame), 0); + if (!sf) { + goto sigsegv; + } #if 0 - if (invalid_frame_pointer(sf, sigframe_size)) - goto sigill_and_return; + if (invalid_frame_pointer(sf, sigframe_size)) + goto sigill_and_return; #endif - /* 2. Save the current process state */ - err = setup___siginfo(&sf->info, env, set->sig[0]); + /* 2. Save the current process state */ + err = setup___siginfo(&sf->info, env, set->sig[0]); __put_user(0, &sf->extra_size); - //save_fpu_state(regs, &sf->fpu_state); - //__put_user(&sf->fpu_state, &sf->fpu_save); + //save_fpu_state(regs, &sf->fpu_state); + //__put_user(&sf->fpu_state, &sf->fpu_save); __put_user(set->sig[0], &sf->info.si_mask); - for (i = 0; i < TARGET_NSIG_WORDS - 1; i++) { + for (i = 0; i < TARGET_NSIG_WORDS - 1; i++) { __put_user(set->sig[i + 1], &sf->extramask[i]); - } + } - for (i = 0; i < 8; i++) { + for (i = 0; i < 8; i++) { __put_user(env->regwptr[i + UREG_L0], &sf->ss.locals[i]); - } - for (i = 0; i < 8; i++) { + } + for (i = 0; i < 8; i++) { __put_user(env->regwptr[i + UREG_I0], &sf->ss.ins[i]); - } - if (err) - goto sigsegv; - - /* 3. signal handler back-trampoline and parameters */ - env->regwptr[UREG_FP] = sf_addr; - env->regwptr[UREG_I0] = sig; - env->regwptr[UREG_I1] = sf_addr + - offsetof(struct target_signal_frame, info); - env->regwptr[UREG_I2] = sf_addr + - offsetof(struct target_signal_frame, info); - - /* 4. signal handler */ - env->pc = ka->_sa_handler; - env->npc = (env->pc + 4); - /* 5. return to kernel instructions */ - if (ka->sa_restorer) - env->regwptr[UREG_I7] = ka->sa_restorer; - else { - uint32_t val32; - - env->regwptr[UREG_I7] = sf_addr + - offsetof(struct target_signal_frame, insns) - 2 * 4; - - /* mov __NR_sigreturn, %g1 */ - val32 = 0x821020d8; + } + if (err) + goto sigsegv; + + /* 3. signal handler back-trampoline and parameters */ + env->regwptr[UREG_FP] = sf_addr; + env->regwptr[UREG_I0] = sig; + env->regwptr[UREG_I1] = sf_addr + + offsetof(struct target_signal_frame, info); + env->regwptr[UREG_I2] = sf_addr + + offsetof(struct target_signal_frame, info); + + /* 4. signal handler */ + env->pc = ka->_sa_handler; + env->npc = (env->pc + 4); + /* 5. return to kernel instructions */ + if (ka->sa_restorer) { + env->regwptr[UREG_I7] = ka->sa_restorer; + } else { + uint32_t val32; + + env->regwptr[UREG_I7] = sf_addr + + offsetof(struct target_signal_frame, insns) - 2 * 4; + + /* mov __NR_sigreturn, %g1 */ + val32 = 0x821020d8; __put_user(val32, &sf->insns[0]); - /* t 0x10 */ - val32 = 0x91d02010; + /* t 0x10 */ + val32 = 0x91d02010; __put_user(val32, &sf->insns[1]); - if (err) - goto sigsegv; + if (err) + goto sigsegv; - /* Flush instruction space. */ - //flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0])); - // tb_flush(CPU(sparc_env_get_cpu(env))); - } - unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); - return; + /* Flush instruction space. */ + // flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0])); + // tb_flush(env); + } + unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); + return; #if 0 sigill_and_return: - force_sig(TARGET_SIGILL); + force_sig(TARGET_SIGILL); #endif sigsegv: - unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); - force_sig(TARGET_SIGSEGV); + unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); + force_sig(TARGET_SIGSEGV); } static void setup_rt_frame(int sig, struct target_sigaction *ka, @@ -2369,71 +2387,74 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, long do_sigreturn(CPUSPARCState *env) { - abi_ulong sf_addr; - struct target_signal_frame *sf; - uint32_t up_psr, pc, npc; - target_sigset_t set; - sigset_t host_set; - int err=0, i; + abi_ulong sf_addr; + struct target_signal_frame *sf; + uint32_t up_psr, pc, npc; + target_sigset_t set; + sigset_t host_set; + int err=0, i; - sf_addr = env->regwptr[UREG_FP]; - trace_user_do_sigreturn(env, sf_addr); - if (!lock_user_struct(VERIFY_READ, sf, sf_addr, 1)) - goto segv_and_exit; + sf_addr = env->regwptr[UREG_FP]; + trace_user_do_sigreturn(env, sf_addr); + if (!lock_user_struct(VERIFY_READ, sf, sf_addr, 1)) { + goto segv_and_exit; + } - /* 1. Make sure we are not getting garbage from the user */ + /* 1. Make sure we are not getting garbage from the user */ - if (sf_addr & 3) - goto segv_and_exit; + if (sf_addr & 3) + goto segv_and_exit; - __get_user(pc, &sf->info.si_regs.pc); - __get_user(npc, &sf->info.si_regs.npc); + __get_user(pc, &sf->info.si_regs.pc); + __get_user(npc, &sf->info.si_regs.npc); - if ((pc | npc) & 3) - goto segv_and_exit; + if ((pc | npc) & 3) { + goto segv_and_exit; + } - /* 2. Restore the state */ - __get_user(up_psr, &sf->info.si_regs.psr); + /* 2. Restore the state */ + __get_user(up_psr, &sf->info.si_regs.psr); - /* User can only change condition codes and FPU enabling in %psr. */ - env->psr = (up_psr & (PSR_ICC /* | PSR_EF */)) - | (env->psr & ~(PSR_ICC /* | PSR_EF */)); + /* User can only change condition codes and FPU enabling in %psr. */ + env->psr = (up_psr & (PSR_ICC /* | PSR_EF */)) + | (env->psr & ~(PSR_ICC /* | PSR_EF */)); - env->pc = pc; - env->npc = npc; - __get_user(env->y, &sf->info.si_regs.y); - for (i=0; i < 8; i++) { - __get_user(env->gregs[i], &sf->info.si_regs.u_regs[i]); - } - for (i=0; i < 8; i++) { - __get_user(env->regwptr[i + UREG_I0], &sf->info.si_regs.u_regs[i+8]); - } + env->pc = pc; + env->npc = npc; + __get_user(env->y, &sf->info.si_regs.y); + for (i=0; i < 8; i++) { + __get_user(env->gregs[i], &sf->info.si_regs.u_regs[i]); + } + for (i=0; i < 8; i++) { + __get_user(env->regwptr[i + UREG_I0], &sf->info.si_regs.u_regs[i+8]); + } - /* FIXME: implement FPU save/restore: + /* FIXME: implement FPU save/restore: * __get_user(fpu_save, &sf->fpu_save); * if (fpu_save) * err |= restore_fpu_state(env, fpu_save); */ - /* This is pretty much atomic, no amount locking would prevent + /* This is pretty much atomic, no amount locking would prevent * the races which exist anyways. */ - __get_user(set.sig[0], &sf->info.si_mask); - for(i = 1; i < TARGET_NSIG_WORDS; i++) { - __get_user(set.sig[i], &sf->extramask[i - 1]); - } + __get_user(set.sig[0], &sf->info.si_mask); + for(i = 1; i < TARGET_NSIG_WORDS; i++) { + __get_user(set.sig[i], &sf->extramask[i - 1]); + } - target_to_host_sigset_internal(&host_set, &set); - do_sigprocmask(SIG_SETMASK, &host_set, NULL); + target_to_host_sigset_internal(&host_set, &set); + do_sigprocmask(SIG_SETMASK, &host_set, NULL); - if (err) - goto segv_and_exit; - unlock_user_struct(sf, sf_addr, 0); - return env->regwptr[0]; + if (err) { + goto segv_and_exit; + } + unlock_user_struct(sf, sf_addr, 0); + return env->regwptr[0]; segv_and_exit: - unlock_user_struct(sf, sf_addr, 0); - force_sig(TARGET_SIGSEGV); + unlock_user_struct(sf, sf_addr, 0); + force_sig(TARGET_SIGSEGV); } long do_rt_sigreturn(CPUSPARCState *env) @@ -2522,13 +2543,15 @@ void sparc64_set_context(CPUSPARCState *env) unsigned int i; ucp_addr = env->regwptr[UREG_I0]; - if (!lock_user_struct(VERIFY_READ, ucp, ucp_addr, 1)) + if (!lock_user_struct(VERIFY_READ, ucp, ucp_addr, 1)) { goto do_sigsegv; + } grp = &ucp->tuc_mcontext.mc_gregs; __get_user(pc, &((*grp)[MC_PC])); __get_user(npc, &((*grp)[MC_NPC])); - if ((pc | npc) & 3) + if ((pc | npc) & 3) { goto do_sigsegv; + } if (env->regwptr[UREG_I1]) { target_sigset_t target_set; sigset_t set; @@ -2573,12 +2596,14 @@ void sparc64_set_context(CPUSPARCState *env) __get_user(i7, &(ucp->tuc_mcontext.mc_i7)); w_addr = TARGET_STACK_BIAS+env->regwptr[UREG_I6]; - if (put_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), - abi_ulong) != 0) + if (put_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), + abi_ulong) != 0) { goto do_sigsegv; - if (put_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), - abi_ulong) != 0) + } + if (put_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), + abi_ulong) != 0) { goto do_sigsegv; + } /* FIXME this does not match how the kernel handles the FPU in * its sparc64_set_context implementation. In particular the FPU * is only restored if fenab is non-zero in: @@ -2601,7 +2626,7 @@ void sparc64_set_context(CPUSPARCState *env) &(ucp->tuc_mcontext.mc_fpregs.mcfpu_gsr)); unlock_user_struct(ucp, ucp_addr, 0); return; - do_sigsegv: +do_sigsegv: unlock_user_struct(ucp, ucp_addr, 0); force_sig(TARGET_SIGSEGV); } @@ -2619,8 +2644,9 @@ void sparc64_get_context(CPUSPARCState *env) sigset_t set; ucp_addr = env->regwptr[UREG_I0]; - if (!lock_user_struct(VERIFY_WRITE, ucp, ucp_addr, 0)) + if (!lock_user_struct(VERIFY_WRITE, ucp, ucp_addr, 0)) { goto do_sigsegv; + } mcp = &ucp->tuc_mcontext; grp = &mcp->mc_gregs; @@ -2670,12 +2696,14 @@ void sparc64_get_context(CPUSPARCState *env) w_addr = TARGET_STACK_BIAS+env->regwptr[UREG_I6]; fp = i7 = 0; - if (get_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), - abi_ulong) != 0) + if (get_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), + abi_ulong) != 0) { goto do_sigsegv; - if (get_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), - abi_ulong) != 0) + } + if (get_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), + abi_ulong) != 0) { goto do_sigsegv; + } __put_user(fp, &(mcp->mc_fp)); __put_user(i7, &(mcp->mc_i7)); @@ -2697,7 +2725,7 @@ void sparc64_get_context(CPUSPARCState *env) goto do_sigsegv; unlock_user_struct(ucp, ucp_addr, 1); return; - do_sigsegv: +do_sigsegv: unlock_user_struct(ucp, ucp_addr, 1); force_sig(TARGET_SIGSEGV); } @@ -2787,7 +2815,7 @@ static inline int install_sigtramp(unsigned int *tramp, unsigned int syscall) } static inline void setup_sigcontext(CPUMIPSState *regs, - struct target_sigcontext *sc) + struct target_sigcontext *sc) { int i; @@ -2899,8 +2927,9 @@ static void setup_frame(int sig, struct target_sigaction * ka, frame_addr = get_sigframe(ka, regs, sizeof(*frame)); trace_user_setup_frame(regs, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - goto give_sigsegv; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } install_sigtramp(frame->sf_code, TARGET_NR_sigreturn); @@ -2948,7 +2977,7 @@ long do_sigreturn(CPUMIPSState *regs) frame_addr = regs->active_tc.gpr[29]; trace_user_do_sigreturn(regs, frame_addr); if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + goto badframe; for(i = 0; i < TARGET_NSIG_WORDS; i++) { __get_user(target_set.sig[i], &frame->sf_mask.sig[i]); @@ -2994,8 +3023,9 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, 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; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } install_sigtramp(frame->rs_code, TARGET_NR_rt_sigreturn); @@ -3053,8 +3083,9 @@ long do_rt_sigreturn(CPUMIPSState *env) frame_addr = env->active_tc.gpr[29]; trace_user_do_rt_sigreturn(env, frame_addr); - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } target_to_host_sigset(&blocked, &frame->rs_uc.tuc_sigmask); do_sigprocmask(SIG_SETMASK, &blocked, NULL); @@ -3062,8 +3093,8 @@ long do_rt_sigreturn(CPUMIPSState *env) restore_sigcontext(env, &frame->rs_uc.tuc_mcontext); if (do_sigaltstack(frame_addr + - offsetof(struct target_rt_sigframe, rs_uc.tuc_stack), - 0, get_sp_from_cpustate(env)) == -EFAULT) + offsetof(struct target_rt_sigframe, rs_uc.tuc_stack), + 0, get_sp_from_cpustate(env)) == -EFAULT) goto badframe; env->active_tc.PC = env->CP0_EPC; @@ -3134,7 +3165,7 @@ struct target_rt_sigframe #define TRAP_NOARG 0xc310 /* Syscall w/no args (NR in R3) SH3/4 */ static abi_ulong get_sigframe(struct target_sigaction *ka, - unsigned long sp, size_t frame_size) + unsigned long sp, size_t frame_size) { if ((ka->sa_flags & TARGET_SA_ONSTACK) && (sas_ss_flags(sp) == 0)) { sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; @@ -3144,7 +3175,7 @@ static abi_ulong get_sigframe(struct target_sigaction *ka, } static void setup_sigcontext(struct target_sigcontext *sc, - CPUSH4State *regs, unsigned long mask) + CPUSH4State *regs, unsigned long mask) { int i; @@ -3173,7 +3204,7 @@ static void setup_sigcontext(struct target_sigcontext *sc, } static void restore_sigcontext(CPUSH4State *regs, struct target_sigcontext *sc, - target_ulong *r0_p) + target_ulong *r0_p) { int i; @@ -3210,8 +3241,9 @@ static void setup_frame(int sig, struct target_sigaction *ka, frame_addr = get_sigframe(ka, regs->gregs[15], sizeof(*frame)); trace_user_setup_frame(regs, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - goto give_sigsegv; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } setup_sigcontext(&frame->sc, regs, set->sig[0]); @@ -3258,8 +3290,9 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, frame_addr = get_sigframe(ka, regs->gregs[15], sizeof(*frame)); trace_user_setup_rt_frame(regs, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - goto give_sigsegv; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } tswap_siginfo(&frame->info, info); @@ -3273,7 +3306,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size); setup_sigcontext(&frame->uc.tuc_mcontext, - regs, set->sig[0]); + regs, set->sig[0]); for(i = 0; i < TARGET_NSIG_WORDS; i++) { __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); } @@ -3319,8 +3352,9 @@ long do_sigreturn(CPUSH4State *regs) frame_addr = regs->gregs[15]; trace_user_do_sigreturn(regs, frame_addr); - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } __get_user(target_set.sig[0], &frame->sc.oldmask); for(i = 1; i < TARGET_NSIG_WORDS; i++) { @@ -3353,8 +3387,9 @@ long do_rt_sigreturn(CPUSH4State *regs) frame_addr = regs->gregs[15]; trace_user_do_rt_sigreturn(regs, frame_addr); - if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) - goto badframe; + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } target_to_host_sigset(&blocked, &frame->uc.tuc_sigmask); do_sigprocmask(SIG_SETMASK, &blocked, NULL); @@ -3362,9 +3397,10 @@ long do_rt_sigreturn(CPUSH4State *regs) restore_sigcontext(regs, &frame->uc.tuc_mcontext, &r0); if (do_sigaltstack(frame_addr + - offsetof(struct target_rt_sigframe, uc.tuc_stack), - 0, get_sp_from_cpustate(regs)) == -EFAULT) + offsetof(struct target_rt_sigframe, uc.tuc_stack), + 0, get_sp_from_cpustate(regs)) == -EFAULT) { goto badframe; + } unlock_user_struct(frame, frame_addr, 0); return r0; @@ -3548,7 +3584,7 @@ static void setup_frame(int sig, struct target_sigaction *ka, unlock_user_struct(frame, frame_addr, 1); return; - badframe: +badframe: force_sig(TARGET_SIGSEGV); } @@ -3576,7 +3612,7 @@ long do_sigreturn(CPUMBState *env) /* Restore blocked signals */ __get_user(target_set.sig[0], &frame->uc.tuc_mcontext.oldmask); for(i = 1; i < TARGET_NSIG_WORDS; i++) { - __get_user(target_set.sig[i], &frame->extramask[i - 1]); + __get_user(target_set.sig[i], &frame->extramask[i - 1]); } target_to_host_sigset_internal(&set, &target_set); do_sigprocmask(SIG_SETMASK, &set, NULL); @@ -3585,10 +3621,10 @@ long do_sigreturn(CPUMBState *env) /* We got here through a sigreturn syscall, our path back is via an rtb insn so setup r14 for that. */ env->regs[14] = env->sregs[SR_PC]; - + unlock_user_struct(frame, frame_addr, 0); return env->regs[10]; - badframe: +badframe: force_sig(TARGET_SIGSEGV); } @@ -3602,124 +3638,124 @@ long do_rt_sigreturn(CPUMBState *env) #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 */ + 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 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; - struct ucontext uc; - uint16_t retcode[4]; /* Trampoline code. */ + siginfo_t *pinfo; + void *puc; + siginfo_t info; + struct ucontext 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); + __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); + __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; + 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; - */ + 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. */ + /* 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); + 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); + /* 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_sig(TARGET_SIGSEGV); + unlock_user_struct(frame, frame_addr, 1); + return; +badframe: + force_sig(TARGET_SIGSEGV); } static void setup_rt_frame(int sig, struct target_sigaction *ka, @@ -3731,31 +3767,32 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, long do_sigreturn(CPUCRISState *env) { - struct target_signal_frame *frame; - abi_ulong frame_addr; - target_sigset_t target_set; - sigset_t set; - int i; + 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; + 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 */ + /* Restore blocked signals */ __get_user(target_set.sig[0], &frame->sc.oldmask); - for(i = 1; i < TARGET_NSIG_WORDS; i++) { + 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); - do_sigprocmask(SIG_SETMASK, &set, NULL); + } + target_to_host_sigset_internal(&set, &target_set); + do_sigprocmask(SIG_SETMASK, &set, NULL); - restore_sigcontext(&frame->sc, env); - unlock_user_struct(frame, frame_addr, 0); - return env->regs[10]; - badframe: - force_sig(TARGET_SIGSEGV); + restore_sigcontext(&frame->sc, env); + unlock_user_struct(frame, frame_addr, 0); + return env->regs[10]; +badframe: + force_sig(TARGET_SIGSEGV); } long do_rt_sigreturn(CPUCRISState *env) @@ -3841,8 +3878,8 @@ badframe: /* Set up a signal frame. */ static void setup_sigcontext(struct target_sigcontext *sc, - CPUOpenRISCState *regs, - unsigned long mask) + CPUOpenRISCState *regs, + unsigned long mask) { unsigned long usp = regs->gpr[1]; @@ -4100,7 +4137,7 @@ static void setup_frame(int sig, struct target_sigaction *ka, 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; + goto give_sigsegv; } __put_user(set->sig[0], &frame->sc.oldmask[0]); @@ -4113,13 +4150,13 @@ static void setup_frame(int sig, struct target_sigaction *ka, /* Set up to return from userspace. If provided, use a stub already in userspace. */ if (ka->sa_flags & TARGET_SA_RESTORER) { - env->regs[14] = (unsigned long) - ka->sa_restorer | PSW_ADDR_AMODE; + env->regs[14] = (unsigned long) + ka->sa_restorer | PSW_ADDR_AMODE; } else { - env->regs[14] = (unsigned long) - frame->retcode | PSW_ADDR_AMODE; - __put_user(S390_SYSCALL_OPCODE | TARGET_NR_sigreturn, - (uint16_t *)(frame->retcode)); + env->regs[14] = (unsigned long) + frame->retcode | PSW_ADDR_AMODE; + __put_user(S390_SYSCALL_OPCODE | TARGET_NR_sigreturn, + (uint16_t *)(frame->retcode)); } /* Set up backchain. */ @@ -4167,12 +4204,12 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, __put_user((abi_ulong)0, (abi_ulong *)&frame->uc.tuc_link); __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp); __put_user(sas_ss_flags(get_sp_from_cpustate(env)), - &frame->uc.tuc_stack.ss_flags); + &frame->uc.tuc_stack.ss_flags); __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size); save_sigregs(env, &frame->uc.tuc_mcontext); for (i = 0; i < TARGET_NSIG_WORDS; i++) { __put_user((abi_ulong)set->sig[i], - (abi_ulong *)&frame->uc.tuc_sigmask.sig[i]); + (abi_ulong *)&frame->uc.tuc_sigmask.sig[i]); } /* Set up to return from userspace. If provided, use a stub @@ -4423,15 +4460,15 @@ struct target_sigframe { #define TARGET_TRAMP_SIZE 6 struct target_rt_sigframe { - /* sys_rt_sigreturn requires the ucontext be the first field */ - struct target_ucontext uc; - target_ulong _unused[2]; - uint32_t trampoline[TARGET_TRAMP_SIZE]; - target_ulong pinfo; /* struct siginfo __user * */ - target_ulong puc; /* void __user * */ - struct target_siginfo info; - /* 64 bit ABI allows for 288 bytes below sp before decrementing it. */ - char abigap[288]; + /* sys_rt_sigreturn requires the ucontext be the first field */ + struct target_ucontext uc; + target_ulong _unused[2]; + uint32_t trampoline[TARGET_TRAMP_SIZE]; + target_ulong pinfo; /* struct siginfo __user * */ + target_ulong puc; /* void __user * */ + struct target_siginfo info; + /* 64 bit ABI allows for 288 bytes below sp before decrementing it. */ + char abigap[288]; } __attribute__((aligned(16))); #else @@ -4466,7 +4503,7 @@ static target_ulong get_sigframe(struct target_sigaction *ka, oldsp = env->gpr[1]; if ((ka->sa_flags & TARGET_SA_ONSTACK) && - (sas_ss_flags(oldsp) == 0)) { + (sas_ss_flags(oldsp) == 0)) { oldsp = (target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size); } @@ -4488,7 +4525,7 @@ static void save_user_regs(CPUPPCState *env, struct target_mcontext *frame) /* Save general registers. */ for (i = 0; i < ARRAY_SIZE(env->gpr); i++) { - __put_user(env->gpr[i], &frame->mc_gregs[i]); + __put_user(env->gpr[i], &frame->mc_gregs[i]); } __put_user(env->nip, &frame->mc_gregs[TARGET_PT_NIP]); __put_user(env->ctr, &frame->mc_gregs[TARGET_PT_CTR]); @@ -4925,7 +4962,7 @@ struct target_sigframe 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]; @@ -4964,7 +5001,7 @@ struct target_rt_sigframe }; static void setup_sigcontext(struct target_sigcontext *sc, CPUM68KState *env, - abi_ulong mask) + abi_ulong mask) { __put_user(mask, &sc->sc_mask); __put_user(env->aregs[7], &sc->sc_usp); @@ -5022,8 +5059,9 @@ static void setup_frame(int sig, struct target_sigaction *ka, 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; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } __put_user(sig, &frame->sig); @@ -5044,7 +5082,7 @@ static void setup_frame(int sig, struct target_sigaction *ka, /* moveq #,d0; trap #0 */ __put_user(0x70004e40 + (TARGET_NR_sigreturn << 16), - (uint32_t *)(frame->retcode)); + (uint32_t *)(frame->retcode)); /* Set up to return from userspace */ @@ -5085,7 +5123,7 @@ static inline int target_rt_setup_ucontext(struct target_ucontext *uc, return 0; } - + static inline int target_rt_restore_ucontext(CPUM68KState *env, struct target_ucontext *uc, int *pd0) @@ -5139,8 +5177,9 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, 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; + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } __put_user(sig, &frame->sig); @@ -5159,13 +5198,13 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, __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); + &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; + goto give_sigsegv; for(i = 0; i < TARGET_NSIG_WORDS; i++) { __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); @@ -5316,7 +5355,7 @@ struct target_rt_sigframe { #define INSN_CALLSYS 0x00000083 static void setup_sigcontext(struct target_sigcontext *sc, CPUAlphaState *env, - abi_ulong frame_addr, target_sigset_t *set) + abi_ulong frame_addr, target_sigset_t *set) { int i; @@ -5342,7 +5381,7 @@ static void setup_sigcontext(struct target_sigcontext *sc, CPUAlphaState *env, } static void restore_sigcontext(CPUAlphaState *env, - struct target_sigcontext *sc) + struct target_sigcontext *sc) { uint64_t fpcr; int i; @@ -5402,7 +5441,7 @@ static void setup_frame(int sig, struct target_sigaction *ka, unlock_user_struct(frame, frame_addr, 1); if (err) { - give_sigsegv: +give_sigsegv: if (sig == TARGET_SIGSEGV) { ka->_sa_handler = TARGET_SIG_DFL; } @@ -5459,8 +5498,8 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, } if (err) { - give_sigsegv: - if (sig == TARGET_SIGSEGV) { +give_sigsegv: + if (sig == TARGET_SIGSEGV) { ka->_sa_handler = TARGET_SIG_DFL; } force_sig(TARGET_SIGSEGV); @@ -5495,7 +5534,7 @@ long do_sigreturn(CPUAlphaState *env) unlock_user_struct(sc, sc_addr, 0); return env->ir[IR_V0]; - badframe: +badframe: force_sig(TARGET_SIGSEGV); } @@ -5523,7 +5562,7 @@ long do_rt_sigreturn(CPUAlphaState *env) return env->ir[IR_V0]; - badframe: +badframe: unlock_user_struct(frame, frame_addr, 0); force_sig(TARGET_SIGSEGV); } @@ -5690,14 +5729,14 @@ long do_rt_sigreturn(CPUTLGState *env) #else static void setup_frame(int sig, struct target_sigaction *ka, - target_sigset_t *set, CPUArchState *env) + target_sigset_t *set, CPUArchState *env) { fprintf(stderr, "setup_frame: not implemented\n"); } static void setup_rt_frame(int sig, struct target_sigaction *ka, target_siginfo_t *info, - target_sigset_t *set, CPUArchState *env) + target_sigset_t *set, CPUArchState *env) { fprintf(stderr, "setup_rt_frame: not implemented\n"); } |