diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2002-10-18 19:48:55 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2002-10-18 19:48:55 +0000 |
| commit | 4de21fbcb0870e1ead24f49a4c46cd4fe8db8b41 (patch) | |
| tree | ab8b49920cdfbc64803a2335362765b893748baf | |
| parent | aae52303c155286dabf18478a477e71a186e469a (diff) | |
this is a precision architecture -- be more precise about fault types and in sigsegv deliveries; vm_ssize is in pages, apparently
| -rw-r--r-- | sys/arch/hppa/hppa/trap.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/sys/arch/hppa/hppa/trap.c b/sys/arch/hppa/hppa/trap.c index d19bad1b5b2..acb758edb11 100644 --- a/sys/arch/hppa/hppa/trap.c +++ b/sys/arch/hppa/hppa/trap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: trap.c,v 1.52 2002/10/07 14:38:34 mickey Exp $ */ +/* $OpenBSD: trap.c,v 1.53 2002/10/18 19:48:54 mickey Exp $ */ /* * Copyright (c) 1998-2001 Michael Shalayeff @@ -153,7 +153,12 @@ trap(type, frame) va = frame->tf_ior; space = frame->tf_isr; /* what is the vftype for the T_ITLBMISSNA ??? XXX */ - vftype = inst_store(opcode) ? VM_PROT_WRITE : VM_PROT_READ; + if (va == frame->tf_iioq_head) + vftype = VM_PROT_EXECUTE; + else if (inst_store(opcode)) + vftype = VM_PROT_WRITE; + else + vftype = VM_PROT_READ; } if (frame->tf_flags & TFF_LAST) @@ -309,7 +314,7 @@ trap(type, frame) case T_HIGHERPL | T_USER: case T_LOWERPL | T_USER: sv.sival_int = va; - trapsignal(p, SIGSEGV, type &~ T_USER, SEGV_ACCERR, sv); + trapsignal(p, SIGSEGV, vftype, SEGV_ACCERR, sv); break; case T_IPROT | T_USER: @@ -325,7 +330,6 @@ trap(type, frame) case T_ITLBMISSNA: case T_USER | T_ITLBMISSNA: case T_DTLBMISSNA: case T_USER | T_DTLBMISSNA: case T_TLB_DIRTY: case T_USER | T_TLB_DIRTY: - va = hppa_trunc_page(va); vm = p->p_vmspace; if (!vm) { @@ -358,7 +362,7 @@ trap(type, frame) pmapdebug = 0xffffff; } #endif - ret = uvm_fault(map, va, fault, vftype); + ret = uvm_fault(map, hppa_trunc_page(va), fault, vftype); #ifdef TRAPDEBUG if (space == -1) { @@ -377,9 +381,9 @@ trap(type, frame) * the current limit and we need to reflect that as an access * error. */ - if (va >= (vaddr_t)vm->vm_maxsaddr + vm->vm_ssize) { + if (va >= (vaddr_t)vm->vm_maxsaddr + ctob(vm->vm_ssize)) { if (ret == 0) { - vsize_t nss = btoc(va - USRSTACK + NBPG); + vsize_t nss = btoc(va - USRSTACK + NBPG - 1); if (nss > vm->vm_ssize) vm->vm_ssize = nss; } else if (ret == EACCES) @@ -392,8 +396,10 @@ trap(type, frame) if (kdb_trap (type, va, frame)) return; #endif - sv.sival_int = frame->tf_ior; - trapsignal(p, SIGSEGV, vftype, SEGV_MAPERR, sv); + sv.sival_int = va; + trapsignal(p, SIGSEGV, vftype, + ret == EACCES? SEGV_ACCERR : SEGV_MAPERR, + sv); } else { if (p && p->p_addr->u_pcb.pcb_onfault) { #if 0 |