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-rw-r--r--linux-user/signal.c340
-rw-r--r--linux-user/syscall_defs.h96
2 files changed, 436 insertions, 0 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c
index bde492237b..50f2ba10a0 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -1271,6 +1271,346 @@ badframe:
return 0;
}
+#elif defined(TARGET_SPARC)
+#define __SUNOS_MAXWIN 31
+
+/* This is what SunOS does, so shall I. */
+struct target_sigcontext {
+ target_ulong sigc_onstack; /* state to restore */
+
+ target_ulong sigc_mask; /* sigmask to restore */
+ target_ulong sigc_sp; /* stack pointer */
+ target_ulong sigc_pc; /* program counter */
+ target_ulong sigc_npc; /* next program counter */
+ target_ulong sigc_psr; /* for condition codes etc */
+ target_ulong sigc_g1; /* User uses these two registers */
+ target_ulong sigc_o0; /* within the trampoline code. */
+
+ /* Now comes information regarding the users window set
+ * at the time of the signal.
+ */
+ target_ulong sigc_oswins; /* outstanding windows */
+
+ /* stack ptrs for each regwin buf */
+ char *sigc_spbuf[__SUNOS_MAXWIN];
+
+ /* Windows to restore after signal */
+ struct {
+ target_ulong locals[8];
+ target_ulong ins[8];
+ } sigc_wbuf[__SUNOS_MAXWIN];
+};
+/* A Sparc stack frame */
+struct sparc_stackf {
+ target_ulong locals[8];
+ target_ulong ins[6];
+ struct sparc_stackf *fp;
+ target_ulong callers_pc;
+ char *structptr;
+ target_ulong xargs[6];
+ target_ulong xxargs[1];
+};
+
+typedef struct {
+ struct {
+ target_ulong psr;
+ target_ulong pc;
+ target_ulong npc;
+ target_ulong y;
+ target_ulong u_regs[16]; /* globals and ins */
+ } si_regs;
+ int si_mask;
+} __siginfo_t;
+
+typedef struct {
+ unsigned long si_float_regs [32];
+ unsigned long si_fsr;
+ unsigned long si_fpqdepth;
+ struct {
+ unsigned long *insn_addr;
+ unsigned long insn;
+ } si_fpqueue [16];
+} __siginfo_fpu_t;
+
+
+struct target_signal_frame {
+ struct sparc_stackf ss;
+ __siginfo_t info;
+ __siginfo_fpu_t *fpu_save;
+ target_ulong insns[2] __attribute__ ((aligned (8)));
+ target_ulong extramask[TARGET_NSIG_WORDS - 1];
+ target_ulong extra_size; /* Should be 0 */
+ __siginfo_fpu_t fpu_state;
+};
+struct target_rt_signal_frame {
+ struct sparc_stackf ss;
+ siginfo_t info;
+ target_ulong regs[20];
+ sigset_t mask;
+ __siginfo_fpu_t *fpu_save;
+ unsigned int insns[2];
+ stack_t stack;
+ unsigned int extra_size; /* Should be 0 */
+ __siginfo_fpu_t fpu_state;
+};
+
+#define UREG_O0 0
+#define UREG_O6 6
+#define UREG_I0 16
+#define UREG_I1 17
+#define UREG_I2 18
+#define UREG_I6 22
+#define UREG_I7 23
+#define UREG_FP UREG_I6
+#define UREG_SP UREG_O6
+
+static inline void *get_sigframe(struct emulated_sigaction *sa, CPUState *env, unsigned long framesize)
+{
+ unsigned long sp;
+
+ sp = env->regwptr[UREG_FP];
+#if 0
+
+ /* This is the X/Open sanctioned signal stack switching. */
+ if (sa->sa_flags & TARGET_SA_ONSTACK) {
+ if (!on_sig_stack(sp) && !((current->sas_ss_sp + current->sas_ss_size) & 7))
+ sp = current->sas_ss_sp + current->sas_ss_size;
+ }
+#endif
+ return (void *)(sp - framesize);
+}
+
+static int
+setup___siginfo(__siginfo_t *si, CPUState *env, target_ulong mask)
+{
+ int err = 0, i;
+
+ fprintf(stderr, "2.a %lx psr: %lx regs: %lx\n", si, env->psr, si->si_regs.psr);
+ err |= __put_user(env->psr, &si->si_regs.psr);
+ fprintf(stderr, "2.a1 pc:%lx\n", si->si_regs.pc);
+ err |= __put_user(env->pc, &si->si_regs.pc);
+ err |= __put_user(env->npc, &si->si_regs.npc);
+ err |= __put_user(env->y, &si->si_regs.y);
+ fprintf(stderr, "2.b\n");
+ for (i=0; i < 7; i++) {
+ err |= __put_user(env->gregs[i], &si->si_regs.u_regs[i]);
+ }
+ for (i=0; i < 7; i++) {
+ err |= __put_user(env->regwptr[i+16], &si->si_regs.u_regs[i+8]);
+ }
+ fprintf(stderr, "2.c\n");
+ err |= __put_user(mask, &si->si_mask);
+ return err;
+}
+static int
+setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/
+ CPUState *env, unsigned long mask)
+{
+ int err = 0;
+
+ err |= __put_user(mask, &sc->sigc_mask);
+ err |= __put_user(env->regwptr[UREG_SP], &sc->sigc_sp);
+ err |= __put_user(env->pc, &sc->sigc_pc);
+ err |= __put_user(env->npc, &sc->sigc_npc);
+ err |= __put_user(env->psr, &sc->sigc_psr);
+ err |= __put_user(env->gregs[1], &sc->sigc_g1);
+ err |= __put_user(env->regwptr[UREG_O0], &sc->sigc_o0);
+
+ return err;
+}
+#define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7)))
+
+static void setup_frame(int sig, struct emulated_sigaction *ka,
+ target_sigset_t *set, CPUState *env)
+{
+ struct target_signal_frame *sf;
+ int sigframe_size, err, i;
+
+ /* 1. Make sure everything is clean */
+ //synchronize_user_stack();
+
+ sigframe_size = NF_ALIGNEDSZ;
+
+ sf = (struct target_signal_frame *)
+ get_sigframe(ka, env, sigframe_size);
+
+#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]);
+ err |= __put_user(0, &sf->extra_size);
+
+ //err |= save_fpu_state(regs, &sf->fpu_state);
+ //err |= __put_user(&sf->fpu_state, &sf->fpu_save);
+
+ err |= __put_user(set->sig[0], &sf->info.si_mask);
+ for (i = 0; i < TARGET_NSIG_WORDS - 1; i++) {
+ err |= __put_user(set->sig[i + 1], &sf->extramask[i]);
+ }
+
+ for (i = 0; i < 7; i++) {
+ err |= __put_user(env->regwptr[i + 8], &sf->ss.locals[i]);
+ }
+ for (i = 0; i < 7; i++) {
+ err |= __put_user(env->regwptr[i + 16], &sf->ss.ins[i]);
+ }
+ //err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP],
+ // sizeof(struct reg_window));
+ if (err)
+ goto sigsegv;
+
+ /* 3. signal handler back-trampoline and parameters */
+ env->regwptr[UREG_FP] = (target_ulong) sf;
+ env->regwptr[UREG_I0] = sig;
+ env->regwptr[UREG_I1] = (target_ulong) &sf->info;
+ env->regwptr[UREG_I2] = (target_ulong) &sf->info;
+
+ /* 4. signal handler */
+ env->pc = (unsigned long) ka->sa._sa_handler;
+ env->npc = (env->pc + 4);
+ /* 5. return to kernel instructions */
+ if (ka->sa.sa_restorer)
+ env->regwptr[UREG_I7] = (unsigned long)ka->sa.sa_restorer;
+ else {
+ env->regwptr[UREG_I7] = (unsigned long)(&(sf->insns[0]) - 2);
+
+ /* mov __NR_sigreturn, %g1 */
+ err |= __put_user(0x821020d8, &sf->insns[0]);
+
+ /* t 0x10 */
+ err |= __put_user(0x91d02010, &sf->insns[1]);
+ if (err)
+ goto sigsegv;
+
+ /* Flush instruction space. */
+ //flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
+ //tb_flush(env);
+ }
+ return;
+
+sigill_and_return:
+ force_sig(TARGET_SIGILL);
+sigsegv:
+ force_sig(TARGET_SIGSEGV);
+}
+static inline int
+restore_fpu_state(CPUState *env, __siginfo_fpu_t *fpu)
+{
+ int err;
+#if 0
+#ifdef CONFIG_SMP
+ if (current->flags & PF_USEDFPU)
+ regs->psr &= ~PSR_EF;
+#else
+ if (current == last_task_used_math) {
+ last_task_used_math = 0;
+ regs->psr &= ~PSR_EF;
+ }
+#endif
+ current->used_math = 1;
+ current->flags &= ~PF_USEDFPU;
+#endif
+#if 0
+ if (verify_area (VERIFY_READ, fpu, sizeof(*fpu)))
+ return -EFAULT;
+#endif
+
+ err = __copy_from_user(&env->fpr[0], &fpu->si_float_regs[0],
+ (sizeof(unsigned long) * 32));
+ err |= __get_user(env->fsr, &fpu->si_fsr);
+#if 0
+ err |= __get_user(current->thread.fpqdepth, &fpu->si_fpqdepth);
+ if (current->thread.fpqdepth != 0)
+ err |= __copy_from_user(&current->thread.fpqueue[0],
+ &fpu->si_fpqueue[0],
+ ((sizeof(unsigned long) +
+ (sizeof(unsigned long *)))*16));
+#endif
+ return err;
+}
+
+
+static void setup_rt_frame(int sig, struct emulated_sigaction *ka,
+ target_siginfo_t *info,
+ target_sigset_t *set, CPUState *env)
+{
+ fprintf(stderr, "setup_rt_frame: not implemented\n");
+}
+
+long do_sigreturn(CPUState *env)
+{
+ struct target_signal_frame *sf;
+ unsigned long up_psr, pc, npc;
+ target_sigset_t set;
+ __siginfo_fpu_t *fpu_save;
+ int err;
+
+ sf = (struct new_signal_frame *) env->regwptr[UREG_FP];
+ fprintf(stderr, "sigreturn sf: %lx\n", &sf);
+
+ /* 1. Make sure we are not getting garbage from the user */
+#if 0
+ if (verify_area (VERIFY_READ, sf, sizeof (*sf)))
+ goto segv_and_exit;
+#endif
+
+ if (((uint) sf) & 3)
+ goto segv_and_exit;
+
+ err = __get_user(pc, &sf->info.si_regs.pc);
+ err |= __get_user(npc, &sf->info.si_regs.npc);
+
+ fprintf(stderr, "pc: %lx npc %lx\n", pc, npc);
+ if ((pc | npc) & 3)
+ goto segv_and_exit;
+
+ /* 2. Restore the state */
+ up_psr = env->psr;
+ //err |= __copy_from_user(regs, &sf->info.si_regs, sizeof (struct pt_regs)
+ //);
+ /* 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 */));
+ fprintf(stderr, "psr: %lx\n", env->psr);
+
+ err |= __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
+ * the races which exist anyways.
+ */
+ err |= __get_user(set.sig[0], &sf->info.si_mask);
+ //err |= __copy_from_user(&set.sig[1], &sf->extramask,
+ // (_NSIG_WORDS-1) * sizeof(unsigned int));
+
+ if (err)
+ goto segv_and_exit;
+
+#if 0
+ sigdelsetmask(&set, ~_BLOCKABLE);
+ spin_lock_irq(&current->sigmask_lock);
+ current->blocked = set;
+ recalc_sigpending(current);
+ spin_unlock_irq(&current->sigmask_lock);
+#endif
+ fprintf(stderr, "returning %lx\n", env->regwptr[0]);
+ return env->regwptr[0];
+
+segv_and_exit:
+ force_sig(TARGET_SIGSEGV);
+}
+
+long do_rt_sigreturn(CPUState *env)
+{
+ fprintf(stderr, "do_rt_sigreturn: not implemented\n");
+ return -ENOSYS;
+}
+
+
#else
static void setup_frame(int sig, struct emulated_sigaction *ka,
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 91e1fe5385..ae212ec32c 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -294,6 +294,7 @@ int do_sigaction(int sig, const struct target_sigaction *act,
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_PPC)
+#if !defined(TARGET_SPARC)
#define TARGET_SA_NOCLDSTOP 0x00000001
#define TARGET_SA_NOCLDWAIT 0x00000002 /* not supported yet */
#define TARGET_SA_SIGINFO 0x00000004
@@ -302,6 +303,57 @@ int do_sigaction(int sig, const struct target_sigaction *act,
#define TARGET_SA_NODEFER 0x40000000
#define TARGET_SA_RESETHAND 0x80000000
#define TARGET_SA_RESTORER 0x04000000
+#else /* TARGET_SPARC */
+#define TARGET_SA_NOCLDSTOP 8u
+#define TARGET_SA_NOCLDWAIT 0x100u
+#define TARGET_SA_SIGINFO 0x200u
+#define TARGET_SA_ONSTACK 1u
+#define TARGET_SA_RESTART 2u
+#define TARGET_SA_NODEFER 0x20u
+#define TARGET_SA_RESETHAND 4u
+#endif
+
+#if defined(TARGET_SPARC)
+
+#define TARGET_SIGHUP 1
+#define TARGET_SIGINT 2
+#define TARGET_SIGQUIT 3
+#define TARGET_SIGILL 4
+#define TARGET_SIGTRAP 5
+#define TARGET_SIGABRT 6
+#define TARGET_SIGIOT 6
+#define TARGET_SIGSTKFLT 7 /* actually EMT */
+#define TARGET_SIGFPE 8
+#define TARGET_SIGKILL 9
+#define TARGET_SIGBUS 10
+#define TARGET_SIGSEGV 11
+#define TARGET_SIGSYS 12
+#define TARGET_SIGPIPE 13
+#define TARGET_SIGALRM 14
+#define TARGET_SIGTERM 15
+#define TARGET_SIGURG 16
+#define TARGET_SIGSTOP 17
+#define TARGET_SIGTSTP 18
+#define TARGET_SIGCONT 19
+#define TARGET_SIGCHLD 20
+#define TARGET_SIGTTIN 21
+#define TARGET_SIGTTOU 22
+#define TARGET_SIGIO 23
+#define TARGET_SIGXCPU 24
+#define TARGET_SIGXFSZ 25
+#define TARGET_SIGVTALRM 26
+#define TARGET_SIGPROF 27
+#define TARGET_SIGWINCH 28
+#define TARGET_SIGPWR 29
+#define TARGET_SIGUSR1 30
+#define TARGET_SIGUSR2 31
+#define TARGET_SIGRTMIN 32
+
+#define TARGET_SIG_BLOCK 0x01 /* for blocking signals */
+#define TARGET_SIG_UNBLOCK 0x02 /* for unblocking signals */
+#define TARGET_SIG_SETMASK 0x04 /* for setting the signal mask */
+
+#else
#define TARGET_SIGHUP 1
#define TARGET_SIGINT 2
@@ -341,6 +393,8 @@ int do_sigaction(int sig, const struct target_sigaction *act,
#define TARGET_SIG_UNBLOCK 1 /* for unblocking signals */
#define TARGET_SIG_SETMASK 2 /* for setting the signal mask */
+#endif
+
struct target_old_sigaction {
target_ulong _sa_handler;
target_ulong sa_mask;
@@ -359,6 +413,30 @@ typedef union target_sigval {
int sival_int;
target_ulong sival_ptr;
} target_sigval_t;
+#if 0
+#if defined (TARGET_SPARC)
+typedef struct {
+ struct {
+ target_ulong psr;
+ target_ulong pc;
+ target_ulong npc;
+ target_ulong y;
+ target_ulong u_regs[16]; /* globals and ins */
+ } si_regs;
+ int si_mask;
+} __siginfo_t;
+
+typedef struct {
+ unsigned long si_float_regs [32];
+ unsigned long si_fsr;
+ unsigned long si_fpqdepth;
+ struct {
+ unsigned long *insn_addr;
+ unsigned long insn;
+ } si_fpqueue [16];
+} __siginfo_fpu_t;
+#endif
+#endif
#define TARGET_SI_MAX_SIZE 128
#define TARGET_SI_PAD_SIZE ((TARGET_SI_MAX_SIZE/sizeof(int)) - 3)
@@ -954,6 +1032,24 @@ struct target_stat64 {
#define TARGET_O_NOFOLLOW 0100000 /* don't follow links */
#define TARGET_O_LARGEFILE 0200000
#define TARGET_O_DIRECT 0400000 /* direct disk access hint */
+#elif defined (TARGET_SPARC)
+#define TARGET_O_RDONLY 0x0000
+#define TARGET_O_WRONLY 0x0001
+#define TARGET_O_RDWR 0x0002
+#define TARGET_O_ACCMODE 0x0003
+#define TARGET_O_APPEND 0x0008
+#define TARGET_FASYNC 0x0040 /* fcntl, for BSD compatibility */
+#define TARGET_O_CREAT 0x0200 /* not fcntl */
+#define TARGET_O_TRUNC 0x0400 /* not fcntl */
+#define TARGET_O_EXCL 0x0800 /* not fcntl */
+#define TARGET_O_SYNC 0x2000
+#define TARGET_O_NONBLOCK 0x4000
+#define TARGET_O_NDELAY (0x0004 | O_NONBLOCK)
+#define TARGET_O_NOCTTY 0x8000 /* not fcntl */
+#define TARGET_O_DIRECTORY 0x10000 /* must be a directory */
+#define TARGET_O_NOFOLLOW 0x20000 /* don't follow links */
+#define TARGET_O_LARGEFILE 0x40000
+#define TARGET_O_DIRECT 0x100000 /* direct disk access hint */
#else
#define TARGET_O_ACCMODE 0003
#define TARGET_O_RDONLY 00
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-25 03:54:05 +0000