return ret;
}
-#if defined(TARGET_SPARC)
-
-#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 {
- 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;
-
-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];
-} 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 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;
-};
-
-#define UREG_O0 16
-#define UREG_O6 22
-#define UREG_I0 0
-#define UREG_I1 1
-#define UREG_I2 2
-#define UREG_I3 3
-#define UREG_I4 4
-#define UREG_I5 5
-#define UREG_I6 6
-#define UREG_I7 7
-#define UREG_L0 8
-#define UREG_FP UREG_I6
-#define UREG_SP UREG_O6
-
-static inline abi_ulong get_sigframe(struct target_sigaction *sa,
- CPUSPARCState *env,
- unsigned long framesize)
-{
- abi_ulong sp;
-
- 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;
-}
-
-static int
-setup___siginfo(__siginfo_t *si, CPUSPARCState *env, abi_ulong mask)
-{
- 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++) {
- __put_user(env->gregs[i], &si->si_regs.u_regs[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;
-}
-
-#if 0
-static int
-setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/
- CPUSPARCState *env, unsigned long mask)
-{
- int err = 0;
-
- __put_user(mask, &sc->sigc_mask);
- __put_user(env->regwptr[UREG_SP], &sc->sigc_sp);
- __put_user(env->pc, &sc->sigc_pc);
- __put_user(env->npc, &sc->sigc_npc);
- __put_user(env->psr, &sc->sigc_psr);
- __put_user(env->gregs[1], &sc->sigc_g1);
- __put_user(env->regwptr[UREG_O0], &sc->sigc_o0);
-
- return err;
-}
-#endif
-#define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7)))
-
-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;
-
- /* 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);
-
- 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;
-#endif
- /* 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);
-
- __put_user(set->sig[0], &sf->info.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 + UREG_L0], &sf->ss.locals[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->ka_restorer) {
- env->regwptr[UREG_I7] = ka->ka_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;
- __put_user(val32, &sf->insns[1]);
- if (err)
- goto sigsegv;
-
- /* 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);
-#endif
-sigsegv:
- unlock_user(sf, sf_addr, sizeof(struct target_signal_frame));
- force_sigsegv(sig);
-}
-
-static void setup_rt_frame(int sig, struct target_sigaction *ka,
- target_siginfo_t *info,
- target_sigset_t *set, CPUSPARCState *env)
-{
- fprintf(stderr, "setup_rt_frame: not implemented\n");
-}
-
-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;
-
- 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 */
-
- if (sf_addr & 3)
- goto segv_and_exit;
-
- __get_user(pc, &sf->info.si_regs.pc);
- __get_user(npc, &sf->info.si_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 */));
-
- 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:
- * __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.
- */
- __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);
- set_sigmask(&host_set);
-
- if (err) {
- goto segv_and_exit;
- }
- 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;
-}
-
-long do_rt_sigreturn(CPUSPARCState *env)
-{
- trace_user_do_rt_sigreturn(env, 0);
- fprintf(stderr, "do_rt_sigreturn: not implemented\n");
- return -TARGET_ENOSYS;
-}
-
-#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
-#define SPARC_MC_TSTATE 0
-#define SPARC_MC_PC 1
-#define SPARC_MC_NPC 2
-#define SPARC_MC_Y 3
-#define SPARC_MC_G1 4
-#define SPARC_MC_G2 5
-#define SPARC_MC_G3 6
-#define SPARC_MC_G4 7
-#define SPARC_MC_G5 8
-#define SPARC_MC_G6 9
-#define SPARC_MC_G7 10
-#define SPARC_MC_O0 11
-#define SPARC_MC_O1 12
-#define SPARC_MC_O2 13
-#define SPARC_MC_O3 14
-#define SPARC_MC_O4 15
-#define SPARC_MC_O5 16
-#define SPARC_MC_O6 17
-#define SPARC_MC_O7 18
-#define SPARC_MC_NGREG 19
-
-typedef abi_ulong target_mc_greg_t;
-typedef target_mc_greg_t target_mc_gregset_t[SPARC_MC_NGREG];
-
-struct target_mc_fq {
- abi_ulong *mcfq_addr;
- uint32_t mcfq_insn;
-};
-
-struct target_mc_fpu {
- union {
- uint32_t sregs[32];
- uint64_t dregs[32];
- //uint128_t qregs[16];
- } mcfpu_fregs;
- abi_ulong mcfpu_fsr;
- abi_ulong mcfpu_fprs;
- abi_ulong mcfpu_gsr;
- struct target_mc_fq *mcfpu_fq;
- unsigned char mcfpu_qcnt;
- unsigned char mcfpu_qentsz;
- unsigned char mcfpu_enab;
-};
-typedef struct target_mc_fpu target_mc_fpu_t;
-
-typedef struct {
- target_mc_gregset_t mc_gregs;
- target_mc_greg_t mc_fp;
- target_mc_greg_t mc_i7;
- target_mc_fpu_t mc_fpregs;
-} target_mcontext_t;
-
-struct target_ucontext {
- struct target_ucontext *tuc_link;
- abi_ulong tuc_flags;
- target_sigset_t tuc_sigmask;
- 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)
-{
- abi_ulong ucp_addr;
- struct target_ucontext *ucp;
- target_mc_gregset_t *grp;
- abi_ulong pc, npc, tstate;
- abi_ulong fp, i7, w_addr;
- unsigned int i;
-
- ucp_addr = env->regwptr[UREG_I0];
- if (!lock_user_struct(VERIFY_READ, ucp, ucp_addr, 1)) {
- goto do_sigsegv;
- }
- grp = &ucp->tuc_mcontext.mc_gregs;
- __get_user(pc, &((*grp)[SPARC_MC_PC]));
- __get_user(npc, &((*grp)[SPARC_MC_NPC]));
- if ((pc | npc) & 3) {
- goto do_sigsegv;
- }
- if (env->regwptr[UREG_I1]) {
- target_sigset_t target_set;
- sigset_t set;
-
- if (TARGET_NSIG_WORDS == 1) {
- __get_user(target_set.sig[0], &ucp->tuc_sigmask.sig[0]);
- } else {
- abi_ulong *src, *dst;
- src = ucp->tuc_sigmask.sig;
- dst = target_set.sig;
- for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) {
- __get_user(*dst, src);
- }
- }
- target_to_host_sigset_internal(&set, &target_set);
- set_sigmask(&set);
- }
- env->pc = pc;
- env->npc = npc;
- __get_user(env->y, &((*grp)[SPARC_MC_Y]));
- __get_user(tstate, &((*grp)[SPARC_MC_TSTATE]));
- env->asi = (tstate >> 24) & 0xff;
- cpu_put_ccr(env, tstate >> 32);
- cpu_put_cwp64(env, tstate & 0x1f);
- __get_user(env->gregs[1], (&(*grp)[SPARC_MC_G1]));
- __get_user(env->gregs[2], (&(*grp)[SPARC_MC_G2]));
- __get_user(env->gregs[3], (&(*grp)[SPARC_MC_G3]));
- __get_user(env->gregs[4], (&(*grp)[SPARC_MC_G4]));
- __get_user(env->gregs[5], (&(*grp)[SPARC_MC_G5]));
- __get_user(env->gregs[6], (&(*grp)[SPARC_MC_G6]));
- __get_user(env->gregs[7], (&(*grp)[SPARC_MC_G7]));
- __get_user(env->regwptr[UREG_I0], (&(*grp)[SPARC_MC_O0]));
- __get_user(env->regwptr[UREG_I1], (&(*grp)[SPARC_MC_O1]));
- __get_user(env->regwptr[UREG_I2], (&(*grp)[SPARC_MC_O2]));
- __get_user(env->regwptr[UREG_I3], (&(*grp)[SPARC_MC_O3]));
- __get_user(env->regwptr[UREG_I4], (&(*grp)[SPARC_MC_O4]));
- __get_user(env->regwptr[UREG_I5], (&(*grp)[SPARC_MC_O5]));
- __get_user(env->regwptr[UREG_I6], (&(*grp)[SPARC_MC_O6]));
- __get_user(env->regwptr[UREG_I7], (&(*grp)[SPARC_MC_O7]));
-
- __get_user(fp, &(ucp->tuc_mcontext.mc_fp));
- __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) {
- goto do_sigsegv;
- }
- 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:
- * __get_user(fenab, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_enab));
- */
- __get_user(env->fprs, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fprs));
- {
- uint32_t *src = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs;
- for (i = 0; i < 64; i++, src++) {
- if (i & 1) {
- __get_user(env->fpr[i/2].l.lower, src);
- } else {
- __get_user(env->fpr[i/2].l.upper, src);
- }
- }
- }
- __get_user(env->fsr,
- &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fsr));
- __get_user(env->gsr,
- &(ucp->tuc_mcontext.mc_fpregs.mcfpu_gsr));
- unlock_user_struct(ucp, ucp_addr, 0);
- return;
-do_sigsegv:
- unlock_user_struct(ucp, ucp_addr, 0);
- force_sig(TARGET_SIGSEGV);
-}
-
-void sparc64_get_context(CPUSPARCState *env)
-{
- abi_ulong ucp_addr;
- struct target_ucontext *ucp;
- target_mc_gregset_t *grp;
- target_mcontext_t *mcp;
- abi_ulong fp, i7, w_addr;
- int err;
- unsigned int i;
- target_sigset_t target_set;
- sigset_t set;
-
- ucp_addr = env->regwptr[UREG_I0];
- if (!lock_user_struct(VERIFY_WRITE, ucp, ucp_addr, 0)) {
- goto do_sigsegv;
- }
-
- mcp = &ucp->tuc_mcontext;
- grp = &mcp->mc_gregs;
-
- /* Skip over the trap instruction, first. */
- env->pc = env->npc;
- env->npc += 4;
-
- /* If we're only reading the signal mask then do_sigprocmask()
- * is guaranteed not to fail, which is important because we don't
- * have any way to signal a failure or restart this operation since
- * this is not a normal syscall.
- */
- err = do_sigprocmask(0, NULL, &set);
- assert(err == 0);
- host_to_target_sigset_internal(&target_set, &set);
- if (TARGET_NSIG_WORDS == 1) {
- __put_user(target_set.sig[0],
- (abi_ulong *)&ucp->tuc_sigmask);
- } else {
- abi_ulong *src, *dst;
- src = target_set.sig;
- dst = ucp->tuc_sigmask.sig;
- for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) {
- __put_user(*src, dst);
- }
- if (err)
- goto do_sigsegv;
- }
-
- /* XXX: tstate must be saved properly */
- // __put_user(env->tstate, &((*grp)[SPARC_MC_TSTATE]));
- __put_user(env->pc, &((*grp)[SPARC_MC_PC]));
- __put_user(env->npc, &((*grp)[SPARC_MC_NPC]));
- __put_user(env->y, &((*grp)[SPARC_MC_Y]));
- __put_user(env->gregs[1], &((*grp)[SPARC_MC_G1]));
- __put_user(env->gregs[2], &((*grp)[SPARC_MC_G2]));
- __put_user(env->gregs[3], &((*grp)[SPARC_MC_G3]));
- __put_user(env->gregs[4], &((*grp)[SPARC_MC_G4]));
- __put_user(env->gregs[5], &((*grp)[SPARC_MC_G5]));
- __put_user(env->gregs[6], &((*grp)[SPARC_MC_G6]));
- __put_user(env->gregs[7], &((*grp)[SPARC_MC_G7]));
- __put_user(env->regwptr[UREG_I0], &((*grp)[SPARC_MC_O0]));
- __put_user(env->regwptr[UREG_I1], &((*grp)[SPARC_MC_O1]));
- __put_user(env->regwptr[UREG_I2], &((*grp)[SPARC_MC_O2]));
- __put_user(env->regwptr[UREG_I3], &((*grp)[SPARC_MC_O3]));
- __put_user(env->regwptr[UREG_I4], &((*grp)[SPARC_MC_O4]));
- __put_user(env->regwptr[UREG_I5], &((*grp)[SPARC_MC_O5]));
- __put_user(env->regwptr[UREG_I6], &((*grp)[SPARC_MC_O6]));
- __put_user(env->regwptr[UREG_I7], &((*grp)[SPARC_MC_O7]));
-
- 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) {
- goto do_sigsegv;
- }
- 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));
-
- {
- uint32_t *dst = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs;
- for (i = 0; i < 64; i++, dst++) {
- if (i & 1) {
- __put_user(env->fpr[i/2].l.lower, dst);
- } else {
- __put_user(env->fpr[i/2].l.upper, dst);
- }
- }
- }
- __put_user(env->fsr, &(mcp->mc_fpregs.mcfpu_fsr));
- __put_user(env->gsr, &(mcp->mc_fpregs.mcfpu_gsr));
- __put_user(env->fprs, &(mcp->mc_fpregs.mcfpu_fprs));
-
- if (err)
- goto do_sigsegv;
- unlock_user_struct(ucp, ucp_addr, 1);
- return;
-do_sigsegv:
- unlock_user_struct(ucp, ucp_addr, 1);
- force_sig(TARGET_SIGSEGV);
-}
-#endif
-#elif defined(TARGET_MIPS) || defined(TARGET_MIPS64)
+#if defined(TARGET_MIPS) || defined(TARGET_MIPS64)
# if defined(TARGET_ABI_MIPSO32)
struct target_sigcontext {
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#include "qemu/osdep.h"
+#include "qemu.h"
+#include "target_signal.h"
+#include "signal-common.h"
+#include "linux-user/trace.h"
+
+#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 {
+ 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;
+
+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];
+} 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 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;
+};
+
+#define UREG_O0 16
+#define UREG_O6 22
+#define UREG_I0 0
+#define UREG_I1 1
+#define UREG_I2 2
+#define UREG_I3 3
+#define UREG_I4 4
+#define UREG_I5 5
+#define UREG_I6 6
+#define UREG_I7 7
+#define UREG_L0 8
+#define UREG_FP UREG_I6
+#define UREG_SP UREG_O6
+
+static inline abi_ulong get_sigframe(struct target_sigaction *sa,
+ CPUSPARCState *env,
+ unsigned long framesize)
+{
+ abi_ulong sp;
+
+ 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;
+}
+
+static int
+setup___siginfo(__siginfo_t *si, CPUSPARCState *env, abi_ulong mask)
+{
+ 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++) {
+ __put_user(env->gregs[i], &si->si_regs.u_regs[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;
+}
+
+#if 0
+static int
+setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/
+ CPUSPARCState *env, unsigned long mask)
+{
+ int err = 0;
+
+ __put_user(mask, &sc->sigc_mask);
+ __put_user(env->regwptr[UREG_SP], &sc->sigc_sp);
+ __put_user(env->pc, &sc->sigc_pc);
+ __put_user(env->npc, &sc->sigc_npc);
+ __put_user(env->psr, &sc->sigc_psr);
+ __put_user(env->gregs[1], &sc->sigc_g1);
+ __put_user(env->regwptr[UREG_O0], &sc->sigc_o0);
+
+ return err;
+}
+#endif
+#define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7)))
+
+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();
+
+ 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;
+ }
+#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]);
+ __put_user(0, &sf->extra_size);
+
+ //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++) {
+ __put_user(set->sig[i + 1], &sf->extramask[i]);
+ }
+
+ for (i = 0; i < 8; i++) {
+ __put_user(env->regwptr[i + UREG_L0], &sf->ss.locals[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->ka_restorer) {
+ env->regwptr[UREG_I7] = ka->ka_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;
+ __put_user(val32, &sf->insns[1]);
+ if (err)
+ goto sigsegv;
+
+ /* 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);
+#endif
+sigsegv:
+ unlock_user(sf, sf_addr, sizeof(struct target_signal_frame));
+ force_sigsegv(sig);
+}
+
+void setup_rt_frame(int sig, struct target_sigaction *ka,
+ target_siginfo_t *info,
+ target_sigset_t *set, CPUSPARCState *env)
+{
+ fprintf(stderr, "setup_rt_frame: not implemented\n");
+}
+
+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;
+
+ 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 */
+
+ if (sf_addr & 3)
+ goto segv_and_exit;
+
+ __get_user(pc, &sf->info.si_regs.pc);
+ __get_user(npc, &sf->info.si_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 */));
+
+ 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:
+ * __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.
+ */
+ __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);
+ set_sigmask(&host_set);
+
+ if (err) {
+ goto segv_and_exit;
+ }
+ 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;
+}
+
+long do_rt_sigreturn(CPUSPARCState *env)
+{
+ trace_user_do_rt_sigreturn(env, 0);
+ fprintf(stderr, "do_rt_sigreturn: not implemented\n");
+ return -TARGET_ENOSYS;
+}
+
+#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
+#define SPARC_MC_TSTATE 0
+#define SPARC_MC_PC 1
+#define SPARC_MC_NPC 2
+#define SPARC_MC_Y 3
+#define SPARC_MC_G1 4
+#define SPARC_MC_G2 5
+#define SPARC_MC_G3 6
+#define SPARC_MC_G4 7
+#define SPARC_MC_G5 8
+#define SPARC_MC_G6 9
+#define SPARC_MC_G7 10
+#define SPARC_MC_O0 11
+#define SPARC_MC_O1 12
+#define SPARC_MC_O2 13
+#define SPARC_MC_O3 14
+#define SPARC_MC_O4 15
+#define SPARC_MC_O5 16
+#define SPARC_MC_O6 17
+#define SPARC_MC_O7 18
+#define SPARC_MC_NGREG 19
+
+typedef abi_ulong target_mc_greg_t;
+typedef target_mc_greg_t target_mc_gregset_t[SPARC_MC_NGREG];
+
+struct target_mc_fq {
+ abi_ulong *mcfq_addr;
+ uint32_t mcfq_insn;
+};
+
+struct target_mc_fpu {
+ union {
+ uint32_t sregs[32];
+ uint64_t dregs[32];
+ //uint128_t qregs[16];
+ } mcfpu_fregs;
+ abi_ulong mcfpu_fsr;
+ abi_ulong mcfpu_fprs;
+ abi_ulong mcfpu_gsr;
+ struct target_mc_fq *mcfpu_fq;
+ unsigned char mcfpu_qcnt;
+ unsigned char mcfpu_qentsz;
+ unsigned char mcfpu_enab;
+};
+typedef struct target_mc_fpu target_mc_fpu_t;
+
+typedef struct {
+ target_mc_gregset_t mc_gregs;
+ target_mc_greg_t mc_fp;
+ target_mc_greg_t mc_i7;
+ target_mc_fpu_t mc_fpregs;
+} target_mcontext_t;
+
+struct target_ucontext {
+ struct target_ucontext *tuc_link;
+ abi_ulong tuc_flags;
+ target_sigset_t tuc_sigmask;
+ 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)
+{
+ abi_ulong ucp_addr;
+ struct target_ucontext *ucp;
+ target_mc_gregset_t *grp;
+ abi_ulong pc, npc, tstate;
+ abi_ulong fp, i7, w_addr;
+ unsigned int i;
+
+ ucp_addr = env->regwptr[UREG_I0];
+ if (!lock_user_struct(VERIFY_READ, ucp, ucp_addr, 1)) {
+ goto do_sigsegv;
+ }
+ grp = &ucp->tuc_mcontext.mc_gregs;
+ __get_user(pc, &((*grp)[SPARC_MC_PC]));
+ __get_user(npc, &((*grp)[SPARC_MC_NPC]));
+ if ((pc | npc) & 3) {
+ goto do_sigsegv;
+ }
+ if (env->regwptr[UREG_I1]) {
+ target_sigset_t target_set;
+ sigset_t set;
+
+ if (TARGET_NSIG_WORDS == 1) {
+ __get_user(target_set.sig[0], &ucp->tuc_sigmask.sig[0]);
+ } else {
+ abi_ulong *src, *dst;
+ src = ucp->tuc_sigmask.sig;
+ dst = target_set.sig;
+ for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) {
+ __get_user(*dst, src);
+ }
+ }
+ target_to_host_sigset_internal(&set, &target_set);
+ set_sigmask(&set);
+ }
+ env->pc = pc;
+ env->npc = npc;
+ __get_user(env->y, &((*grp)[SPARC_MC_Y]));
+ __get_user(tstate, &((*grp)[SPARC_MC_TSTATE]));
+ env->asi = (tstate >> 24) & 0xff;
+ cpu_put_ccr(env, tstate >> 32);
+ cpu_put_cwp64(env, tstate & 0x1f);
+ __get_user(env->gregs[1], (&(*grp)[SPARC_MC_G1]));
+ __get_user(env->gregs[2], (&(*grp)[SPARC_MC_G2]));
+ __get_user(env->gregs[3], (&(*grp)[SPARC_MC_G3]));
+ __get_user(env->gregs[4], (&(*grp)[SPARC_MC_G4]));
+ __get_user(env->gregs[5], (&(*grp)[SPARC_MC_G5]));
+ __get_user(env->gregs[6], (&(*grp)[SPARC_MC_G6]));
+ __get_user(env->gregs[7], (&(*grp)[SPARC_MC_G7]));
+ __get_user(env->regwptr[UREG_I0], (&(*grp)[SPARC_MC_O0]));
+ __get_user(env->regwptr[UREG_I1], (&(*grp)[SPARC_MC_O1]));
+ __get_user(env->regwptr[UREG_I2], (&(*grp)[SPARC_MC_O2]));
+ __get_user(env->regwptr[UREG_I3], (&(*grp)[SPARC_MC_O3]));
+ __get_user(env->regwptr[UREG_I4], (&(*grp)[SPARC_MC_O4]));
+ __get_user(env->regwptr[UREG_I5], (&(*grp)[SPARC_MC_O5]));
+ __get_user(env->regwptr[UREG_I6], (&(*grp)[SPARC_MC_O6]));
+ __get_user(env->regwptr[UREG_I7], (&(*grp)[SPARC_MC_O7]));
+
+ __get_user(fp, &(ucp->tuc_mcontext.mc_fp));
+ __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) {
+ goto do_sigsegv;
+ }
+ 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:
+ * __get_user(fenab, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_enab));
+ */
+ __get_user(env->fprs, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fprs));
+ {
+ uint32_t *src = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs;
+ for (i = 0; i < 64; i++, src++) {
+ if (i & 1) {
+ __get_user(env->fpr[i/2].l.lower, src);
+ } else {
+ __get_user(env->fpr[i/2].l.upper, src);
+ }
+ }
+ }
+ __get_user(env->fsr,
+ &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fsr));
+ __get_user(env->gsr,
+ &(ucp->tuc_mcontext.mc_fpregs.mcfpu_gsr));
+ unlock_user_struct(ucp, ucp_addr, 0);
+ return;
+do_sigsegv:
+ unlock_user_struct(ucp, ucp_addr, 0);
+ force_sig(TARGET_SIGSEGV);
+}
+
+void sparc64_get_context(CPUSPARCState *env)
+{
+ abi_ulong ucp_addr;
+ struct target_ucontext *ucp;
+ target_mc_gregset_t *grp;
+ target_mcontext_t *mcp;
+ abi_ulong fp, i7, w_addr;
+ int err;
+ unsigned int i;
+ target_sigset_t target_set;
+ sigset_t set;
+
+ ucp_addr = env->regwptr[UREG_I0];
+ if (!lock_user_struct(VERIFY_WRITE, ucp, ucp_addr, 0)) {
+ goto do_sigsegv;
+ }
+
+ mcp = &ucp->tuc_mcontext;
+ grp = &mcp->mc_gregs;
+
+ /* Skip over the trap instruction, first. */
+ env->pc = env->npc;
+ env->npc += 4;
+
+ /* If we're only reading the signal mask then do_sigprocmask()
+ * is guaranteed not to fail, which is important because we don't
+ * have any way to signal a failure or restart this operation since
+ * this is not a normal syscall.
+ */
+ err = do_sigprocmask(0, NULL, &set);
+ assert(err == 0);
+ host_to_target_sigset_internal(&target_set, &set);
+ if (TARGET_NSIG_WORDS == 1) {
+ __put_user(target_set.sig[0],
+ (abi_ulong *)&ucp->tuc_sigmask);
+ } else {
+ abi_ulong *src, *dst;
+ src = target_set.sig;
+ dst = ucp->tuc_sigmask.sig;
+ for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) {
+ __put_user(*src, dst);
+ }
+ if (err)
+ goto do_sigsegv;
+ }
+
+ /* XXX: tstate must be saved properly */
+ // __put_user(env->tstate, &((*grp)[SPARC_MC_TSTATE]));
+ __put_user(env->pc, &((*grp)[SPARC_MC_PC]));
+ __put_user(env->npc, &((*grp)[SPARC_MC_NPC]));
+ __put_user(env->y, &((*grp)[SPARC_MC_Y]));
+ __put_user(env->gregs[1], &((*grp)[SPARC_MC_G1]));
+ __put_user(env->gregs[2], &((*grp)[SPARC_MC_G2]));
+ __put_user(env->gregs[3], &((*grp)[SPARC_MC_G3]));
+ __put_user(env->gregs[4], &((*grp)[SPARC_MC_G4]));
+ __put_user(env->gregs[5], &((*grp)[SPARC_MC_G5]));
+ __put_user(env->gregs[6], &((*grp)[SPARC_MC_G6]));
+ __put_user(env->gregs[7], &((*grp)[SPARC_MC_G7]));
+ __put_user(env->regwptr[UREG_I0], &((*grp)[SPARC_MC_O0]));
+ __put_user(env->regwptr[UREG_I1], &((*grp)[SPARC_MC_O1]));
+ __put_user(env->regwptr[UREG_I2], &((*grp)[SPARC_MC_O2]));
+ __put_user(env->regwptr[UREG_I3], &((*grp)[SPARC_MC_O3]));
+ __put_user(env->regwptr[UREG_I4], &((*grp)[SPARC_MC_O4]));
+ __put_user(env->regwptr[UREG_I5], &((*grp)[SPARC_MC_O5]));
+ __put_user(env->regwptr[UREG_I6], &((*grp)[SPARC_MC_O6]));
+ __put_user(env->regwptr[UREG_I7], &((*grp)[SPARC_MC_O7]));
+
+ 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) {
+ goto do_sigsegv;
+ }
+ 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));
+
+ {
+ uint32_t *dst = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs;
+ for (i = 0; i < 64; i++, dst++) {
+ if (i & 1) {
+ __put_user(env->fpr[i/2].l.lower, dst);
+ } else {
+ __put_user(env->fpr[i/2].l.upper, dst);
+ }
+ }
+ }
+ __put_user(env->fsr, &(mcp->mc_fpregs.mcfpu_fsr));
+ __put_user(env->gsr, &(mcp->mc_fpregs.mcfpu_gsr));
+ __put_user(env->fprs, &(mcp->mc_fpregs.mcfpu_fprs));
+
+ if (err)
+ goto do_sigsegv;
+ unlock_user_struct(ucp, ucp_addr, 1);
+ return;
+do_sigsegv:
+ unlock_user_struct(ucp, ucp_addr, 1);
+ force_sig(TARGET_SIGSEGV);
+}
+#endif
return state->regwptr[UREG_FP];
}
-
+void setup_frame(int sig, struct target_sigaction *ka,
+ target_sigset_t *set, CPUSPARCState *env);
+void setup_rt_frame(int sig, struct target_sigaction *ka,
+ target_siginfo_t *info,
+ target_sigset_t *set, CPUSPARCState *env);
#endif /* SPARC_TARGET_SIGNAL_H */
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#define SPARC_TARGET_SIGNAL_H /* to only include sparc64/target_signal.h */
+#include "../sparc/signal.c"
return state->regwptr[UREG_FP];
}
-
+void setup_frame(int sig, struct target_sigaction *ka,
+ target_sigset_t *set, CPUSPARCState *env);
+void setup_rt_frame(int sig, struct target_sigaction *ka,
+ target_siginfo_t *info,
+ target_sigset_t *set, CPUSPARCState *env);
#endif /* SPARC64_TARGET_SIGNAL_H */