diff options
Diffstat (limited to 'linux-user/sparc')
| -rw-r--r-- | linux-user/sparc/signal.c | 535 | ||||
| -rw-r--r-- | linux-user/sparc/target_cpu.h | 9 | ||||
| -rw-r--r-- | linux-user/sparc/target_signal.h | 2 | ||||
| -rw-r--r-- | linux-user/sparc/target_structs.h | 34 | ||||
| -rw-r--r-- | linux-user/sparc/target_syscall.h | 42 |
5 files changed, 408 insertions, 214 deletions
diff --git a/linux-user/sparc/signal.c b/linux-user/sparc/signal.c index d27b7a3af7..0cc3db5570 100644 --- a/linux-user/sparc/signal.c +++ b/linux-user/sparc/signal.c @@ -21,107 +21,96 @@ #include "signal-common.h" #include "linux-user/trace.h" -#define __SUNOS_MAXWIN 31 - -/* This is what SunOS does, so shall I. */ -struct target_sigcontext { - 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. */ - - /* Now comes information regarding the users window set - * at the time of the signal. - */ - abi_ulong sigc_oswins; /* outstanding windows */ - - /* 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]; -}; -/* A Sparc stack frame */ -struct sparc_stackf { +/* A Sparc register window */ +struct target_reg_window { 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]; }; -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; -} __siginfo_t; +/* A Sparc stack frame. */ +struct target_stackf { + /* + * Since qemu does not reference fp or callers_pc directly, + * it's simpler to treat fp and callers_pc as elements of ins[], + * and then bundle locals[] and ins[] into reg_window. + */ + struct target_reg_window win; + /* + * Similarly, bundle structptr and xxargs into xargs[]. + * This portion of the struct is part of the function call abi, + * and belongs to the callee for spilling argument registers. + */ + abi_ulong xargs[8]; +}; -typedef struct { - abi_ulong si_float_regs[32]; - unsigned long si_fsr; - unsigned long si_fpqdepth; +struct target_siginfo_fpu { +#ifdef TARGET_SPARC64 + uint64_t si_double_regs[32]; + uint64_t si_fsr; + uint64_t si_gsr; + uint64_t si_fprs; +#else + /* It is more convenient for qemu to move doubles, not singles. */ + uint64_t si_double_regs[16]; + uint32_t si_fsr; + uint32_t si_fpqdepth; struct { - unsigned long *insn_addr; - unsigned long insn; + uint32_t insn_addr; + uint32_t insn; } si_fpqueue [16]; -} qemu_siginfo_fpu_t; - +#endif +}; +#ifdef TARGET_ARCH_HAS_SETUP_FRAME struct target_signal_frame { - struct sparc_stackf ss; - __siginfo_t info; - abi_ulong fpu_save; - uint32_t insns[2] QEMU_ALIGNED(8); - abi_ulong extramask[TARGET_NSIG_WORDS - 1]; - abi_ulong extra_size; /* Should be 0 */ - qemu_siginfo_fpu_t fpu_state; + struct target_stackf ss; + struct target_pt_regs regs; + uint32_t si_mask; + abi_ulong fpu_save; + uint32_t insns[2] QEMU_ALIGNED(8); + abi_ulong extramask[TARGET_NSIG_WORDS - 1]; + abi_ulong extra_size; /* Should be 0 */ + abi_ulong rwin_save; }; +#endif + struct target_rt_signal_frame { - struct sparc_stackf ss; - siginfo_t info; - abi_ulong regs[20]; - sigset_t mask; - abi_ulong fpu_save; - uint32_t insns[2]; - stack_t stack; - unsigned int extra_size; /* Should be 0 */ - qemu_siginfo_fpu_t fpu_state; + struct target_stackf ss; + target_siginfo_t info; + struct target_pt_regs regs; +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) + abi_ulong fpu_save; + target_stack_t stack; + target_sigset_t mask; +#else + target_sigset_t mask; + abi_ulong fpu_save; + uint32_t insns[2]; + target_stack_t stack; + abi_ulong extra_size; /* Should be 0 */ +#endif + abi_ulong rwin_save; }; -static inline abi_ulong get_sigframe(struct target_sigaction *sa, - CPUSPARCState *env, - unsigned long framesize) +static abi_ulong get_sigframe(struct target_sigaction *sa, + CPUSPARCState *env, + size_t framesize) { abi_ulong sp = get_sp_from_cpustate(env); /* * If we are on the alternate signal stack and would overflow it, don't. * Return an always-bogus address instead so we will die with SIGSEGV. - */ + */ if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize))) { - return -1; + return -1; } /* This is the X/Open sanctioned signal stack switching. */ sp = target_sigsp(sp, sa) - framesize; - /* Always align the stack frame. This handles two cases. First, + /* + * Always align the stack frame. This handles two cases. First, * sigaltstack need not be mindful of platform specific stack * alignment. Second, if we took this signal because the stack * is not aligned properly, we'd like to take the signal cleanly @@ -132,175 +121,310 @@ static inline abi_ulong get_sigframe(struct target_sigaction *sa, return sp; } -static int -setup___siginfo(__siginfo_t *si, CPUSPARCState *env, abi_ulong mask) +static void save_pt_regs(struct target_pt_regs *regs, CPUSPARCState *env) +{ + int i; + +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) + __put_user(sparc64_tstate(env), ®s->tstate); + /* TODO: magic should contain PT_REG_MAGIC + %tt. */ + __put_user(0, ®s->magic); +#else + __put_user(cpu_get_psr(env), ®s->psr); +#endif + + __put_user(env->pc, ®s->pc); + __put_user(env->npc, ®s->npc); + __put_user(env->y, ®s->y); + + for (i = 0; i < 8; i++) { + __put_user(env->gregs[i], ®s->u_regs[i]); + } + for (i = 0; i < 8; i++) { + __put_user(env->regwptr[WREG_O0 + i], ®s->u_regs[i + 8]); + } +} + +static void restore_pt_regs(struct target_pt_regs *regs, CPUSPARCState *env) +{ + int i; + +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) + /* User can only change condition codes and %asi in %tstate. */ + uint64_t tstate; + __get_user(tstate, ®s->tstate); + cpu_put_ccr(env, tstate >> 32); + env->asi = extract64(tstate, 24, 8); +#else + /* + * User can only change condition codes and FPU enabling in %psr. + * But don't bother with FPU enabling, since a real kernel would + * just re-enable the FPU upon the next fpu trap. + */ + uint32_t psr; + __get_user(psr, ®s->psr); + env->psr = (psr & PSR_ICC) | (env->psr & ~PSR_ICC); +#endif + + /* Note that pc and npc are handled in the caller. */ + + __get_user(env->y, ®s->y); + + for (i = 0; i < 8; i++) { + __get_user(env->gregs[i], ®s->u_regs[i]); + } + for (i = 0; i < 8; i++) { + __get_user(env->regwptr[WREG_O0 + i], ®s->u_regs[i + 8]); + } +} + +static void save_reg_win(struct target_reg_window *win, CPUSPARCState *env) { - int err = 0, i; + int 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++) { - __put_user(env->gregs[i], &si->si_regs.u_regs[i]); + for (i = 0; i < 8; i++) { + __put_user(env->regwptr[i + WREG_L0], &win->locals[i]); } - for (i=0; i < 8; i++) { - __put_user(env->regwptr[WREG_O0 + i], &si->si_regs.u_regs[i + 8]); + for (i = 0; i < 8; i++) { + __put_user(env->regwptr[i + WREG_I0], &win->ins[i]); } - __put_user(mask, &si->si_mask); - return err; } -#define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7))) +static void save_fpu(struct target_siginfo_fpu *fpu, CPUSPARCState *env) +{ + int i; +#ifdef TARGET_SPARC64 + for (i = 0; i < 32; ++i) { + __put_user(env->fpr[i].ll, &fpu->si_double_regs[i]); + } + __put_user(env->fsr, &fpu->si_fsr); + __put_user(env->gsr, &fpu->si_gsr); + __put_user(env->fprs, &fpu->si_fprs); +#else + for (i = 0; i < 16; ++i) { + __put_user(env->fpr[i].ll, &fpu->si_double_regs[i]); + } + __put_user(env->fsr, &fpu->si_fsr); + __put_user(0, &fpu->si_fpqdepth); +#endif +} + +static void restore_fpu(struct target_siginfo_fpu *fpu, CPUSPARCState *env) +{ + int i; + +#ifdef TARGET_SPARC64 + uint64_t fprs; + __get_user(fprs, &fpu->si_fprs); + + /* In case the user mucks about with FPRS, restore as directed. */ + if (fprs & FPRS_DL) { + for (i = 0; i < 16; ++i) { + __get_user(env->fpr[i].ll, &fpu->si_double_regs[i]); + } + } + if (fprs & FPRS_DU) { + for (i = 16; i < 32; ++i) { + __get_user(env->fpr[i].ll, &fpu->si_double_regs[i]); + } + } + __get_user(env->fsr, &fpu->si_fsr); + __get_user(env->gsr, &fpu->si_gsr); + env->fprs |= fprs; +#else + for (i = 0; i < 16; ++i) { + __get_user(env->fpr[i].ll, &fpu->si_double_regs[i]); + } + __get_user(env->fsr, &fpu->si_fsr); +#endif +} + +#ifdef TARGET_ARCH_HAS_SETUP_FRAME 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; - - /* 1. Make sure everything is clean */ - //synchronize_user_stack(); + size_t sf_size = sizeof(*sf) + sizeof(struct target_siginfo_fpu); + int i; - sigframe_size = NF_ALIGNEDSZ; - sf_addr = get_sigframe(ka, env, sigframe_size); + sf_addr = get_sigframe(ka, env, sf_size); trace_user_setup_frame(env, sf_addr); - sf = lock_user(VERIFY_WRITE, sf_addr, - sizeof(struct target_signal_frame), 0); + sf = lock_user(VERIFY_WRITE, sf_addr, sf_size, 0); if (!sf) { - goto sigsegv; + force_sigsegv(sig); + return; } -#if 0 - 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]); + save_pt_regs(&sf->regs, env); __put_user(0, &sf->extra_size); - //save_fpu_state(regs, &sf->fpu_state); - //__put_user(&sf->fpu_state, &sf->fpu_save); + save_fpu((struct target_siginfo_fpu *)(sf + 1), env); + __put_user(sf_addr + sizeof(*sf), &sf->fpu_save); + + __put_user(0, &sf->rwin_save); /* TODO: save_rwin_state */ - __put_user(set->sig[0], &sf->info.si_mask); + __put_user(set->sig[0], &sf->si_mask); for (i = 0; i < TARGET_NSIG_WORDS - 1; i++) { __put_user(set->sig[i + 1], &sf->extramask[i]); } - for (i = 0; i < 8; i++) { - __put_user(env->regwptr[i + WREG_L0], &sf->ss.locals[i]); - } - for (i = 0; i < 8; i++) { - __put_user(env->regwptr[i + WREG_I0], &sf->ss.ins[i]); - } - if (err) - goto sigsegv; + save_reg_win(&sf->ss.win, env); /* 3. signal handler back-trampoline and parameters */ env->regwptr[WREG_SP] = sf_addr; env->regwptr[WREG_O0] = sig; env->regwptr[WREG_O1] = sf_addr + - offsetof(struct target_signal_frame, info); + offsetof(struct target_signal_frame, regs); env->regwptr[WREG_O2] = sf_addr + - offsetof(struct target_signal_frame, info); + offsetof(struct target_signal_frame, regs); /* 4. signal handler */ env->pc = ka->_sa_handler; - env->npc = (env->pc + 4); + env->npc = env->pc + 4; + /* 5. return to kernel instructions */ if (ka->ka_restorer) { env->regwptr[WREG_O7] = ka->ka_restorer; } else { - uint32_t val32; - env->regwptr[WREG_O7] = sf_addr + offsetof(struct target_signal_frame, insns) - 2 * 4; /* mov __NR_sigreturn, %g1 */ - val32 = 0x821020d8; - __put_user(val32, &sf->insns[0]); - + __put_user(0x821020d8u, &sf->insns[0]); /* t 0x10 */ - val32 = 0x91d02010; - __put_user(val32, &sf->insns[1]); + __put_user(0x91d02010u, &sf->insns[1]); } - unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); - return; -#if 0 -sigill_and_return: - force_sig(TARGET_SIGILL); -#endif -sigsegv: - unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); - force_sigsegv(sig); + unlock_user(sf, sf_addr, sf_size); } +#endif /* TARGET_ARCH_HAS_SETUP_FRAME */ void setup_rt_frame(int sig, struct target_sigaction *ka, target_siginfo_t *info, target_sigset_t *set, CPUSPARCState *env) { - qemu_log_mask(LOG_UNIMP, "setup_rt_frame: not implemented\n"); + abi_ulong sf_addr; + struct target_rt_signal_frame *sf; + size_t sf_size = sizeof(*sf) + sizeof(struct target_siginfo_fpu); + + sf_addr = get_sigframe(ka, env, sf_size); + trace_user_setup_rt_frame(env, sf_addr); + + sf = lock_user(VERIFY_WRITE, sf_addr, sf_size, 0); + if (!sf) { + force_sigsegv(sig); + return; + } + + /* 2. Save the current process state */ + save_reg_win(&sf->ss.win, env); + save_pt_regs(&sf->regs, env); + + save_fpu((struct target_siginfo_fpu *)(sf + 1), env); + __put_user(sf_addr + sizeof(*sf), &sf->fpu_save); + + __put_user(0, &sf->rwin_save); /* TODO: save_rwin_state */ + + tswap_siginfo(&sf->info, info); + tswap_sigset(&sf->mask, set); + target_save_altstack(&sf->stack, env); + +#ifdef TARGET_ABI32 + __put_user(0, &sf->extra_size); +#endif + + /* 3. signal handler back-trampoline and parameters */ + env->regwptr[WREG_SP] = sf_addr - TARGET_STACK_BIAS; + env->regwptr[WREG_O0] = sig; + env->regwptr[WREG_O1] = + sf_addr + offsetof(struct target_rt_signal_frame, info); +#ifdef TARGET_ABI32 + env->regwptr[WREG_O2] = + sf_addr + offsetof(struct target_rt_signal_frame, regs); +#else + env->regwptr[WREG_O2] = env->regwptr[WREG_O1]; +#endif + + /* 4. signal handler */ + env->pc = ka->_sa_handler; + env->npc = env->pc + 4; + + /* 5. return to kernel instructions */ +#ifdef TARGET_ABI32 + if (ka->ka_restorer) { + env->regwptr[WREG_O7] = ka->ka_restorer; + } else { + env->regwptr[WREG_O7] = + sf_addr + offsetof(struct target_rt_signal_frame, insns) - 2 * 4; + + /* mov __NR_rt_sigreturn, %g1 */ + __put_user(0x82102065u, &sf->insns[0]); + /* t 0x10 */ + __put_user(0x91d02010u, &sf->insns[1]); + } +#else + env->regwptr[WREG_O7] = ka->ka_restorer; +#endif + + unlock_user(sf, sf_addr, sf_size); } long do_sigreturn(CPUSPARCState *env) { +#ifdef TARGET_ARCH_HAS_SETUP_FRAME abi_ulong sf_addr; - struct target_signal_frame *sf; - abi_ulong up_psr, pc, npc; + struct target_signal_frame *sf = NULL; + abi_ulong pc, npc, ptr; target_sigset_t set; sigset_t host_set; int i; sf_addr = env->regwptr[WREG_SP]; 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 */ - - if (sf_addr & 3) + if ((sf_addr & 15) || !lock_user_struct(VERIFY_READ, sf, sf_addr, 1)) { goto segv_and_exit; + } - __get_user(pc, &sf->info.si_regs.pc); - __get_user(npc, &sf->info.si_regs.npc); + /* Make sure stack pointer is aligned. */ + __get_user(ptr, &sf->regs.u_regs[14]); + if (ptr & 7) { + goto segv_and_exit; + } + /* Make sure instruction pointers are aligned. */ + __get_user(pc, &sf->regs.pc); + __get_user(npc, &sf->regs.npc); if ((pc | npc) & 3) { goto segv_and_exit; } /* 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 */)); - + restore_pt_regs(&sf->regs, env); 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 + WREG_O0], &sf->info.si_regs.u_regs[i + 8]); + + __get_user(ptr, &sf->fpu_save); + if (ptr) { + struct target_siginfo_fpu *fpu; + if ((ptr & 3) || !lock_user_struct(VERIFY_READ, fpu, ptr, 1)) { + goto segv_and_exit; + } + restore_fpu(fpu, env); + unlock_user_struct(fpu, ptr, 0); } - /* FIXME: implement FPU save/restore: - * __get_user(fpu_save, &sf->fpu_save); - * if (fpu_save) { - * if (restore_fpu_state(env, fpu_save)) { - * goto segv_and_exit; - * } - * } - */ + __get_user(ptr, &sf->rwin_save); + if (ptr) { + goto segv_and_exit; /* TODO: restore_rwin */ + } - /* 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[0], &sf->si_mask); + for (i = 1; i < TARGET_NSIG_WORDS; i++) { __get_user(set.sig[i], &sf->extramask[i - 1]); } @@ -310,17 +434,74 @@ long do_sigreturn(CPUSPARCState *env) unlock_user_struct(sf, sf_addr, 0); return -TARGET_QEMU_ESIGRETURN; -segv_and_exit: + segv_and_exit: unlock_user_struct(sf, sf_addr, 0); force_sig(TARGET_SIGSEGV); return -TARGET_QEMU_ESIGRETURN; +#else + return -TARGET_ENOSYS; +#endif } long do_rt_sigreturn(CPUSPARCState *env) { - trace_user_do_rt_sigreturn(env, 0); - qemu_log_mask(LOG_UNIMP, "do_rt_sigreturn: not implemented\n"); - return -TARGET_ENOSYS; + abi_ulong sf_addr, tpc, tnpc, ptr; + struct target_rt_signal_frame *sf = NULL; + sigset_t set; + + sf_addr = get_sp_from_cpustate(env); + trace_user_do_rt_sigreturn(env, sf_addr); + + /* 1. Make sure we are not getting garbage from the user */ + if ((sf_addr & 15) || !lock_user_struct(VERIFY_READ, sf, sf_addr, 1)) { + goto segv_and_exit; + } + + /* Validate SP alignment. */ + __get_user(ptr, &sf->regs.u_regs[8 + WREG_SP]); + if ((ptr + TARGET_STACK_BIAS) & 7) { + goto segv_and_exit; + } + + /* Validate PC and NPC alignment. */ + __get_user(tpc, &sf->regs.pc); + __get_user(tnpc, &sf->regs.npc); + if ((tpc | tnpc) & 3) { + goto segv_and_exit; + } + + /* 2. Restore the state */ + restore_pt_regs(&sf->regs, env); + + __get_user(ptr, &sf->fpu_save); + if (ptr) { + struct target_siginfo_fpu *fpu; + if ((ptr & 7) || !lock_user_struct(VERIFY_READ, fpu, ptr, 1)) { + goto segv_and_exit; + } + restore_fpu(fpu, env); + unlock_user_struct(fpu, ptr, 0); + } + + __get_user(ptr, &sf->rwin_save); + if (ptr) { + goto segv_and_exit; /* TODO: restore_rwin_state */ + } + + target_restore_altstack(&sf->stack, env); + target_to_host_sigset(&set, &sf->mask); + set_sigmask(&set); + + env->pc = tpc; + env->npc = tnpc; + + unlock_user_struct(sf, sf_addr, 0); + return -TARGET_QEMU_ESIGRETURN; + + segv_and_exit: + unlock_user_struct(sf, sf_addr, 0); + force_sig(TARGET_SIGSEGV); + return -TARGET_QEMU_ESIGRETURN; } #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) @@ -388,14 +569,6 @@ struct target_ucontext { target_mcontext_t tuc_mcontext; }; -/* A V9 register window */ -struct target_reg_window { - abi_ulong locals[8]; - abi_ulong ins[8]; -}; - -#define TARGET_STACK_BIAS 2047 - /* {set, get}context() needed for 64-bit SparcLinux userland. */ void sparc64_set_context(CPUSPARCState *env) { diff --git a/linux-user/sparc/target_cpu.h b/linux-user/sparc/target_cpu.h index 1fa1011775..1f4bed50f4 100644 --- a/linux-user/sparc/target_cpu.h +++ b/linux-user/sparc/target_cpu.h @@ -20,6 +20,12 @@ #ifndef SPARC_TARGET_CPU_H #define SPARC_TARGET_CPU_H +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) +# define TARGET_STACK_BIAS 2047 +#else +# define TARGET_STACK_BIAS 0 +#endif + static inline void cpu_clone_regs_child(CPUSPARCState *env, target_ulong newsp, unsigned flags) { @@ -40,6 +46,7 @@ static inline void cpu_clone_regs_child(CPUSPARCState *env, target_ulong newsp, #endif /* ??? The kernel appears to copy one stack frame to the new stack. */ /* ??? The kernel force aligns the new stack. */ + /* Userspace provides a biased stack pointer value. */ env->regwptr[WREG_SP] = newsp; } @@ -77,7 +84,7 @@ static inline void cpu_set_tls(CPUSPARCState *env, target_ulong newtls) static inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state) { - return state->regwptr[WREG_SP]; + return state->regwptr[WREG_SP] + TARGET_STACK_BIAS; } #endif diff --git a/linux-user/sparc/target_signal.h b/linux-user/sparc/target_signal.h index 911a3f5af5..34f9a12519 100644 --- a/linux-user/sparc/target_signal.h +++ b/linux-user/sparc/target_signal.h @@ -67,7 +67,9 @@ typedef struct target_sigaltstack { #define TARGET_MINSIGSTKSZ 4096 #define TARGET_SIGSTKSZ 16384 +#ifdef TARGET_ABI32 #define TARGET_ARCH_HAS_SETUP_FRAME +#endif /* bit-flags */ #define TARGET_SS_AUTODISARM (1U << 31) /* disable sas during sighandling */ diff --git a/linux-user/sparc/target_structs.h b/linux-user/sparc/target_structs.h index 9953540759..beeace8fb2 100644 --- a/linux-user/sparc/target_structs.h +++ b/linux-user/sparc/target_structs.h @@ -26,13 +26,10 @@ struct target_ipc_perm { abi_uint cuid; /* Creator's user ID. */ abi_uint cgid; /* Creator's group ID. */ #if TARGET_ABI_BITS == 32 - abi_ushort __pad1; + abi_ushort __pad0; +#endif abi_ushort mode; /* Read/write permission. */ - abi_ushort __pad2; -#else - abi_ushort mode; abi_ushort __pad1; -#endif abi_ushort __seq; /* Sequence number. */ uint64_t __unused1; uint64_t __unused2; @@ -40,22 +37,17 @@ struct target_ipc_perm { struct target_shmid_ds { struct target_ipc_perm shm_perm; /* operation permission struct */ -#if TARGET_ABI_BITS == 32 - abi_uint __pad1; -#endif - abi_ulong shm_atime; /* time of last shmat() */ -#if TARGET_ABI_BITS == 32 - abi_uint __pad2; -#endif - abi_ulong shm_dtime; /* time of last shmdt() */ -#if TARGET_ABI_BITS == 32 - abi_uint __pad3; -#endif - abi_ulong shm_ctime; /* time of last change by shmctl() */ - abi_long shm_segsz; /* size of segment in bytes */ - abi_ulong shm_cpid; /* pid of creator */ - abi_ulong shm_lpid; /* pid of last shmop */ - abi_long shm_nattch; /* number of current attaches */ + /* + * Note that sparc32 splits these into hi/lo parts. + * For simplicity in qemu, always use a 64-bit type. + */ + int64_t shm_atime; /* last attach time */ + int64_t shm_dtime; /* last detach time */ + int64_t shm_ctime; /* last change time */ + abi_ulong shm_segsz; /* size of segment in bytes */ + abi_int shm_cpid; /* pid of creator */ + abi_int shm_lpid; /* pid of last shmop */ + abi_ulong shm_nattch; /* number of current attaches */ abi_ulong __unused1; abi_ulong __unused2; }; diff --git a/linux-user/sparc/target_syscall.h b/linux-user/sparc/target_syscall.h index d8ea04ea83..15d531f389 100644 --- a/linux-user/sparc/target_syscall.h +++ b/linux-user/sparc/target_syscall.h @@ -3,18 +3,34 @@ #include "target_errno.h" +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) struct target_pt_regs { - abi_ulong psr; - abi_ulong pc; - abi_ulong npc; - abi_ulong y; - abi_ulong u_regs[16]; + abi_ulong u_regs[16]; + abi_ulong tstate; + abi_ulong pc; + abi_ulong npc; + uint32_t y; + uint32_t magic; }; +#else +struct target_pt_regs { + abi_ulong psr; + abi_ulong pc; + abi_ulong npc; + abi_ulong y; + abi_ulong u_regs[16]; +}; +#endif -#define UNAME_MACHINE "sparc" +#ifdef TARGET_SPARC64 +# define UNAME_MACHINE "sparc64" +#else +# define UNAME_MACHINE "sparc" +#endif #define UNAME_MINIMUM_RELEASE "2.6.32" -/* SPARC kernels don't define this in their Kconfig, but they have the +/* + * SPARC kernels don't define this in their Kconfig, but they have the * same ABI as if they did, implemented by sparc-specific code which fishes * directly in the u_regs() struct for half the parameters in sparc_do_fork() * and copy_thread(). @@ -25,20 +41,24 @@ struct target_pt_regs { #define TARGET_MCL_FUTURE 0x4000 #define TARGET_MCL_ONFAULT 0x8000 -/* For SPARC SHMLBA is determined at runtime in the kernel, and - * libc has to runtime-detect it using the hwcaps (see glibc - * sysdeps/unix/sysv/linux/sparc/getshmlba; we follow the same - * logic here, though we know we're not the sparc v9 64-bit case). +/* + * For SPARC SHMLBA is determined at runtime in the kernel, and + * libc has to runtime-detect it using the hwcaps. + * See glibc sysdeps/unix/sysv/linux/sparc/getshmlba. */ #define TARGET_FORCE_SHMLBA static inline abi_ulong target_shmlba(CPUSPARCState *env) { +#ifdef TARGET_SPARC64 + return MAX(TARGET_PAGE_SIZE, 16 * 1024); +#else if (!(env->def.features & CPU_FEATURE_FLUSH)) { return 64 * 1024; } else { return 256 * 1024; } +#endif } #endif /* SPARC_TARGET_SYSCALL_H */ |