[SPARC]: Remove SunOS and Solaris binary support.
As per Documentation/feature-removal-schedule.txt
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/signal.c b/arch/sparc/kernel/signal.c
index 9994cac..1f73061 100644
--- a/arch/sparc/kernel/signal.c
+++ b/arch/sparc/kernel/signal.c
@@ -22,7 +22,6 @@
#include <asm/uaccess.h>
#include <asm/ptrace.h>
-#include <asm/svr4.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/cacheflush.h> /* flush_sig_insns */
@@ -454,7 +453,6 @@
break;
case SIGSYS:
if (info->si_code == (__SI_FAULT|0x100)) {
- /* See sys_sunos.c */
sig_code = info->si_trapno;
break;
}
@@ -676,291 +674,17 @@
force_sigsegv(signo, current);
}
-/* Setup a Solaris stack frame */
-static inline void
-setup_svr4_frame(struct sigaction *sa, unsigned long pc, unsigned long npc,
- struct pt_regs *regs, int signr, sigset_t *oldset)
-{
- svr4_signal_frame_t __user *sfp;
- svr4_gregset_t __user *gr;
- svr4_siginfo_t __user *si;
- svr4_mcontext_t __user *mc;
- svr4_gwindows_t __user *gw;
- svr4_ucontext_t __user *uc;
- svr4_sigset_t setv;
- struct thread_info *tp = current_thread_info();
- int window = 0, err;
-
- synchronize_user_stack();
- sfp = (svr4_signal_frame_t __user *)
- get_sigframe(sa, regs, SVR4_SF_ALIGNED + sizeof(struct reg_window));
-
- if (invalid_frame_pointer(sfp, sizeof(*sfp)))
- goto sigill_and_return;
-
- /* Start with a clean frame pointer and fill it */
- err = __clear_user(sfp, sizeof(*sfp));
-
- /* Setup convenience variables */
- si = &sfp->si;
- uc = &sfp->uc;
- gw = &sfp->gw;
- mc = &uc->mcontext;
- gr = &mc->greg;
-
- /* FIXME: where am I supposed to put this?
- * sc->sigc_onstack = old_status;
- * anyways, it does not look like it is used for anything at all.
- */
- setv.sigbits[0] = oldset->sig[0];
- setv.sigbits[1] = oldset->sig[1];
- if (_NSIG_WORDS >= 4) {
- setv.sigbits[2] = oldset->sig[2];
- setv.sigbits[3] = oldset->sig[3];
- err |= __copy_to_user(&uc->sigmask, &setv, sizeof(svr4_sigset_t));
- } else
- err |= __copy_to_user(&uc->sigmask, &setv,
- 2 * sizeof(unsigned int));
-
- /* Store registers */
- err |= __put_user(regs->pc, &((*gr)[SVR4_PC]));
- err |= __put_user(regs->npc, &((*gr)[SVR4_NPC]));
- err |= __put_user(regs->psr, &((*gr)[SVR4_PSR]));
- err |= __put_user(regs->y, &((*gr)[SVR4_Y]));
-
- /* Copy g[1..7] and o[0..7] registers */
- err |= __copy_to_user(&(*gr)[SVR4_G1], ®s->u_regs[UREG_G1],
- sizeof(long) * 7);
- err |= __copy_to_user(&(*gr)[SVR4_O0], ®s->u_regs[UREG_I0],
- sizeof(long) * 8);
-
- /* Setup sigaltstack */
- err |= __put_user(current->sas_ss_sp, &uc->stack.sp);
- err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &uc->stack.flags);
- err |= __put_user(current->sas_ss_size, &uc->stack.size);
-
- /* Save the currently window file: */
-
- /* 1. Link sfp->uc->gwins to our windows */
- err |= __put_user(gw, &mc->gwin);
-
- /* 2. Number of windows to restore at setcontext(): */
- err |= __put_user(tp->w_saved, &gw->count);
-
- /* 3. Save each valid window
- * Currently, it makes a copy of the windows from the kernel copy.
- * David's code for SunOS, makes the copy but keeps the pointer to
- * the kernel. My version makes the pointer point to a userland
- * copy of those. Mhm, I wonder if I shouldn't just ignore those
- * on setcontext and use those that are on the kernel, the signal
- * handler should not be modyfing those, mhm.
- *
- * These windows are just used in case synchronize_user_stack failed
- * to flush the user windows.
- */
- for (window = 0; window < tp->w_saved; window++) {
- err |= __put_user((int __user *) &(gw->win[window]), &gw->winptr[window]);
- err |= __copy_to_user(&gw->win[window],
- &tp->reg_window[window],
- sizeof(svr4_rwindow_t));
- err |= __put_user(0, gw->winptr[window]);
- }
-
- /* 4. We just pay attention to the gw->count field on setcontext */
- tp->w_saved = 0; /* So process is allowed to execute. */
-
- /* Setup the signal information. Solaris expects a bunch of
- * information to be passed to the signal handler, we don't provide
- * that much currently, should use siginfo.
- */
- err |= __put_user(signr, &si->siginfo.signo);
- err |= __put_user(SVR4_SINOINFO, &si->siginfo.code);
- if (err)
- goto sigsegv;
-
- regs->u_regs[UREG_FP] = (unsigned long) sfp;
- regs->pc = (unsigned long) sa->sa_handler;
- regs->npc = (regs->pc + 4);
-
- /* Arguments passed to signal handler */
- if (regs->u_regs[14]){
- struct reg_window __user *rw = (struct reg_window __user *)
- regs->u_regs[14];
-
- err |= __put_user(signr, &rw->ins[0]);
- err |= __put_user(si, &rw->ins[1]);
- err |= __put_user(uc, &rw->ins[2]);
- err |= __put_user(sfp, &rw->ins[6]); /* frame pointer */
- if (err)
- goto sigsegv;
-
- regs->u_regs[UREG_I0] = signr;
- regs->u_regs[UREG_I1] = (unsigned long) si;
- regs->u_regs[UREG_I2] = (unsigned long) uc;
- }
- return;
-
-sigill_and_return:
- do_exit(SIGILL);
-sigsegv:
- force_sigsegv(signr, current);
-}
-
-asmlinkage int svr4_getcontext(svr4_ucontext_t __user *uc, struct pt_regs *regs)
-{
- svr4_gregset_t __user *gr;
- svr4_mcontext_t __user *mc;
- svr4_sigset_t setv;
- int err = 0;
-
- synchronize_user_stack();
-
- if (current_thread_info()->w_saved)
- return -EFAULT;
-
- err = clear_user(uc, sizeof(*uc));
- if (err)
- return -EFAULT;
-
- /* Setup convenience variables */
- mc = &uc->mcontext;
- gr = &mc->greg;
-
- setv.sigbits[0] = current->blocked.sig[0];
- setv.sigbits[1] = current->blocked.sig[1];
- if (_NSIG_WORDS >= 4) {
- setv.sigbits[2] = current->blocked.sig[2];
- setv.sigbits[3] = current->blocked.sig[3];
- err |= __copy_to_user(&uc->sigmask, &setv, sizeof(svr4_sigset_t));
- } else
- err |= __copy_to_user(&uc->sigmask, &setv,
- 2 * sizeof(unsigned int));
-
- /* Store registers */
- err |= __put_user(regs->pc, &uc->mcontext.greg[SVR4_PC]);
- err |= __put_user(regs->npc, &uc->mcontext.greg[SVR4_NPC]);
- err |= __put_user(regs->psr, &uc->mcontext.greg[SVR4_PSR]);
- err |= __put_user(regs->y, &uc->mcontext.greg[SVR4_Y]);
-
- /* Copy g[1..7] and o[0..7] registers */
- err |= __copy_to_user(&(*gr)[SVR4_G1], ®s->u_regs[UREG_G1],
- sizeof(uint) * 7);
- err |= __copy_to_user(&(*gr)[SVR4_O0], ®s->u_regs[UREG_I0],
- sizeof(uint) * 8);
-
- /* Setup sigaltstack */
- err |= __put_user(current->sas_ss_sp, &uc->stack.sp);
- err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &uc->stack.flags);
- err |= __put_user(current->sas_ss_size, &uc->stack.size);
-
- /* The register file is not saved
- * we have already stuffed all of it with sync_user_stack
- */
- return (err ? -EFAULT : 0);
-}
-
-/* Set the context for a svr4 application, this is Solaris way to sigreturn */
-asmlinkage int svr4_setcontext(svr4_ucontext_t __user *c, struct pt_regs *regs)
-{
- svr4_gregset_t __user *gr;
- unsigned long pc, npc, psr;
- mm_segment_t old_fs;
- sigset_t set;
- svr4_sigset_t setv;
- int err;
- stack_t st;
-
- /* Fixme: restore windows, or is this already taken care of in
- * svr4_setup_frame when sync_user_windows is done?
- */
- flush_user_windows();
-
- if (current_thread_info()->w_saved)
- goto sigsegv_and_return;
-
- if (((unsigned long) c) & 3)
- goto sigsegv_and_return;
-
- if (!__access_ok((unsigned long)c, sizeof(*c)))
- goto sigsegv_and_return;
-
- /* Check for valid PC and nPC */
- gr = &c->mcontext.greg;
- err = __get_user(pc, &((*gr)[SVR4_PC]));
- err |= __get_user(npc, &((*gr)[SVR4_NPC]));
-
- if ((pc | npc) & 3)
- goto sigsegv_and_return;
-
- /* Retrieve information from passed ucontext */
- /* note that nPC is ored a 1, this is used to inform entry.S */
- /* that we don't want it to mess with our PC and nPC */
-
- /* This is pretty much atomic, no amount locking would prevent
- * the races which exist anyways.
- */
- err |= __copy_from_user(&setv, &c->sigmask, sizeof(svr4_sigset_t));
-
- err |= __get_user(st.ss_sp, &c->stack.sp);
- err |= __get_user(st.ss_flags, &c->stack.flags);
- err |= __get_user(st.ss_size, &c->stack.size);
-
- if (err)
- goto sigsegv_and_return;
-
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- do_sigaltstack((const stack_t __user *) &st, NULL,
- regs->u_regs[UREG_I6]);
- set_fs(old_fs);
-
- set.sig[0] = setv.sigbits[0];
- set.sig[1] = setv.sigbits[1];
- if (_NSIG_WORDS >= 4) {
- set.sig[2] = setv.sigbits[2];
- set.sig[3] = setv.sigbits[3];
- }
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
- regs->pc = pc;
- regs->npc = npc | 1;
- err |= __get_user(regs->y, &((*gr)[SVR4_Y]));
- err |= __get_user(psr, &((*gr)[SVR4_PSR]));
- regs->psr &= ~(PSR_ICC);
- regs->psr |= (psr & PSR_ICC);
-
- /* Restore g[1..7] and o[0..7] registers */
- err |= __copy_from_user(®s->u_regs[UREG_G1], &(*gr)[SVR4_G1],
- sizeof(long) * 7);
- err |= __copy_from_user(®s->u_regs[UREG_I0], &(*gr)[SVR4_O0],
- sizeof(long) * 8);
- return (err ? -EFAULT : 0);
-
-sigsegv_and_return:
- force_sig(SIGSEGV, current);
- return -EFAULT;
-}
-
static inline void
handle_signal(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info, sigset_t *oldset, struct pt_regs *regs,
- int svr4_signal)
+ siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
{
- if (svr4_signal)
- setup_svr4_frame(&ka->sa, regs->pc, regs->npc, regs, signr, oldset);
- else {
- if (ka->sa.sa_flags & SA_SIGINFO)
- new_setup_rt_frame(ka, regs, signr, oldset, info);
- else if (current->thread.new_signal)
- new_setup_frame(ka, regs, signr, oldset);
- else
- setup_frame(&ka->sa, regs, signr, oldset, info);
- }
+ if (ka->sa.sa_flags & SA_SIGINFO)
+ new_setup_rt_frame(ka, regs, signr, oldset, info);
+ else if (current->thread.new_signal)
+ new_setup_frame(ka, regs, signr, oldset);
+ else
+ setup_frame(&ka->sa, regs, signr, oldset, info);
+
spin_lock_irq(¤t->sighand->siglock);
sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NOMASK))
@@ -1002,17 +726,6 @@
int signr;
sigset_t *oldset;
- /*
- * XXX Disable svr4 signal handling until solaris emulation works.
- * It is buggy - Anton
- */
-#define SVR4_SIGNAL_BROKEN 1
-#ifdef SVR4_SIGNAL_BROKEN
- int svr4_signal = 0;
-#else
- int svr4_signal = current->personality == PER_SVR4;
-#endif
-
cookie.restart_syscall = restart_syscall;
cookie.orig_i0 = orig_i0;
@@ -1025,8 +738,8 @@
if (signr > 0) {
if (cookie.restart_syscall)
syscall_restart(cookie.orig_i0, regs, &ka.sa);
- handle_signal(signr, &ka, &info, oldset,
- regs, svr4_signal);
+ handle_signal(signr, &ka, &info, oldset, regs);
+
/* a signal was successfully delivered; the saved
* sigmask will have been stored in the signal frame,
* and will be restored by sigreturn, so we can simply