emul_native is only used for kernel threads which can't dump core, so

delete coredump_trad(), uvm_coredump(), cpu_coredump(), struct md_coredump,
and various #includes that are superfluous.

This leaves compat_linux processes without a coredump callback.  If that
ability is desired, someone should update it to use coredump_elf32() and
verify the results...

ok kettenis@

40 files changed, 52 insertions, 936 deletions

diff --git a/sys/arch/alpha/alpha/vm_machdep.c b/sys/arch/alpha/alpha/vm_machdep.c
index ef712b325b6..26385a93044 100644
--- a/sys/arch/alpha/alpha/vm_machdep.c
+++ b/sys/arch/alpha/alpha/vm_machdep.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: vm_machdep.c,v 1.42 2014/11/16 12:30:52 deraadt Exp $ */
+/* $OpenBSD: vm_machdep.c,v 1.43 2015/05/05 02:13:46 guenther Exp $ */
 /* $NetBSD: vm_machdep.c,v 1.55 2000/03/29 03:49:48 simonb Exp $ */
 
 /*
@@ -36,7 +36,6 @@
 #include <sys/buf.h>
 #include <sys/vnode.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 
 #include <uvm/uvm_extern.h>
@@ -47,53 +46,6 @@
 
 
 /*
- * Dump the machine specific header information at the start of a core dump.
- */
-int
-cpu_coredump(p, vp, cred, chdr)
-	struct proc *p;
-	struct vnode *vp;
-	struct ucred *cred;
-	struct core *chdr;
-{
-	int error;
-	struct md_coredump cpustate;
-	struct coreseg cseg;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_ALPHA, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(cpustate);
-
-	cpustate.md_tf = *p->p_md.md_tf;
-	cpustate.md_tf.tf_regs[FRAME_SP] = alpha_pal_rdusp();	/* XXX */
-	if (p->p_md.md_flags & MDP_FPUSED) {
-		if (p->p_addr->u_pcb.pcb_fpcpu != NULL)
-			fpusave_proc(p, 1);
-		cpustate.md_fpstate = p->p_addr->u_pcb.pcb_fp;
-	} else
-		bzero(&cpustate.md_fpstate, sizeof(cpustate.md_fpstate));
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_ALPHA, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cpustate, sizeof(cpustate),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-
-	if (!error)
-		chdr->c_nseg++;
-
-	return error;
-}
-
-/*
  * cpu_exit is called as the last action during exit.
  */
 void
diff --git a/sys/arch/alpha/include/pcb.h b/sys/arch/alpha/include/pcb.h
index 6b5528852f2..97fa2d77b09 100644
--- a/sys/arch/alpha/include/pcb.h
+++ b/sys/arch/alpha/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.10 2014/03/29 18:09:28 guenther Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.11 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.5 1996/11/13 22:21:00 cgd Exp $	*/
 
 /*
@@ -57,16 +57,6 @@ struct pcb {
 	struct cpu_info *volatile pcb_fpcpu;	/* CPU with our FP state[SW] */
 };
 
-/*
- * The pcb is augmented with machine-dependent additional data for
- * core dumps. For the Alpha, that's a trap frame and the floating
- * point registers.
- */
-struct md_coredump {
-	struct	trapframe md_tf;
-	struct	fpreg md_fpstate;
-};
-
 #ifdef _KERNEL
 void savectx(struct pcb *);
 #endif
diff --git a/sys/arch/amd64/amd64/hibernate_machdep.c b/sys/arch/amd64/amd64/hibernate_machdep.c
index 4921343b70d..37b57d8ec8c 100644
--- a/sys/arch/amd64/amd64/hibernate_machdep.c
+++ b/sys/arch/amd64/amd64/hibernate_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hibernate_machdep.c,v 1.36 2015/03/14 03:38:46 jsg Exp $	*/
+/*	$OpenBSD: hibernate_machdep.c,v 1.37 2015/05/05 02:13:46 guenther Exp $	*/
 
 /*
  * Copyright (c) 2012 Mike Larkin <mlarkin@openbsd.org>
@@ -35,7 +35,6 @@
 
 #include <machine/cpu.h>
 #include <machine/hibernate_var.h>
-#include <machine/kcore.h>
 #include <machine/pte.h>
 #include <machine/pmap.h>
 
diff --git a/sys/arch/amd64/amd64/vm_machdep.c b/sys/arch/amd64/amd64/vm_machdep.c
index eb609a4a987..52d0c5037f1 100644
--- a/sys/arch/amd64/amd64/vm_machdep.c
+++ b/sys/arch/amd64/amd64/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.30 2015/03/14 03:38:46 jsg Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.31 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.1 2003/04/26 18:39:33 fvdl Exp $	*/
 
 /*-
@@ -49,7 +49,6 @@
 #include <sys/vnode.h>
 #include <sys/buf.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/ptrace.h>
 #include <sys/signalvar.h>
@@ -153,56 +152,6 @@ cpu_exit(struct proc *p)
 }
 
 /*
- * Dump the machine specific segment at the start of a core dump.
- */     
-struct md_core {
-	struct reg intreg;
-	struct fpreg freg;
-};
-
-int
-cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *chdr)
-{
-	struct md_core md_core;
-	struct coreseg cseg;
-	int error;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(md_core);
-
-	/* Save integer registers. */
-	error = process_read_regs(p, &md_core.intreg);
-	if (error)
-		return error;
-
-	/* Save floating point registers. */
-	error = process_read_fpregs(p, &md_core.freg);
-	if (error)
-		return error;
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&md_core, sizeof(md_core),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	chdr->c_nseg++;
-	return 0;
-}
-
-/*
  * Set a red zone in the kernel stack after the u. area.
  */
 void
diff --git a/sys/arch/amd64/include/pcb.h b/sys/arch/amd64/include/pcb.h
index 5bf1ab856f0..85efc564252 100644
--- a/sys/arch/amd64/include/pcb.h
+++ b/sys/arch/amd64/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.12 2011/07/10 18:12:03 deraadt Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.13 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.1 2003/04/26 18:39:45 fvdl Exp $	*/
 
 /*-
@@ -89,12 +89,4 @@ struct pcb {
 	int	pcb_cr0;		/* saved image of CR0 */
 };
 
-/*    
- * The pcb is augmented with machine-dependent additional data for 
- * core dumps. For the i386, there is nothing to add.
- */     
-struct md_coredump {
-	long	md_pad[8];
-};    
-
 #endif /* _MACHINE_PCB_H_ */
diff --git a/sys/arch/arm/arm/vm_machdep.c b/sys/arch/arm/arm/vm_machdep.c
index 54b6cb22ff3..5e127281422 100644
--- a/sys/arch/arm/arm/vm_machdep.c
+++ b/sys/arch/arm/arm/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.14 2014/11/16 12:30:56 deraadt Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.15 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.31 2004/01/04 11:33:29 jdolecek Exp $	*/
 
 /*
@@ -52,7 +52,6 @@
 #include <sys/vnode.h>
 #include <sys/buf.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/ptrace.h>
 
@@ -177,55 +176,6 @@ cpu_exit(struct proc *p)
 }
 
 /*
- * Dump the machine specific segment at the start of a core dump.
- */
-
-int
-cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *chdr)
-{
-	int error;
-	struct {
-		struct reg regs;
-		struct fpreg fpregs;
-	} cpustate;
-	struct coreseg cseg;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(cpustate);
-
-	/* Save integer registers. */
-	error = process_read_regs(p, &cpustate.regs);
-	if (error)
-		return error;
-	/* Save floating point registers. */
-	error = process_read_fpregs(p, &cpustate.fpregs);
-	if (error)
-		return error;
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cpustate, sizeof(cpustate),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	chdr->c_nseg++;
-
-	return error;
-}
-
-/*
  * Map a user I/O request into kernel virtual address space.
  * Note: the pages are already locked by uvm_vslock(), so we
  * do not need to pass an access_type to pmap_enter().
diff --git a/sys/arch/arm/include/pcb.h b/sys/arch/arm/include/pcb.h
index 2ee7a801c93..8e0b06a3baf 100644
--- a/sys/arch/arm/include/pcb.h
+++ b/sys/arch/arm/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.5 2013/09/12 11:43:51 patrick Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.6 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.10 2003/10/13 21:46:39 scw Exp $	*/
 
 /*
@@ -86,11 +86,4 @@ struct pcb {
 	struct	fpe_sp_state pcb_fpstate;	/* Floating Point state */
 };
 
-/*
- * No additional data for core dumps.
- */
-struct md_coredump {
-	int	md_empty;
-};
-
 #endif	/* _ARM_PCB_H_ */
diff --git a/sys/arch/armish/armish/armish_machdep.c b/sys/arch/armish/armish/armish_machdep.c
index ece2c284508..9038d44f3b8 100644
--- a/sys/arch/armish/armish/armish_machdep.c
+++ b/sys/arch/armish/armish/armish_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: armish_machdep.c,v 1.36 2015/01/18 10:17:42 jsg Exp $ */
+/*	$OpenBSD: armish_machdep.c,v 1.37 2015/05/05 02:13:46 guenther Exp $ */
 /*	$NetBSD: lubbock_machdep.c,v 1.2 2003/07/15 00:25:06 lukem Exp $ */
 
 /*
@@ -89,7 +89,6 @@
 #include <sys/msgbuf.h>
 #include <sys/reboot.h>
 #include <sys/termios.h>
-#include <sys/kcore.h>
 
 #include <uvm/uvm_extern.h>
 
diff --git a/sys/arch/hppa/hppa/vm_machdep.c b/sys/arch/hppa/hppa/vm_machdep.c
index fca81111753..11bceafc94c 100644
--- a/sys/arch/hppa/hppa/vm_machdep.c
+++ b/sys/arch/hppa/hppa/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.80 2014/12/16 18:30:03 tedu Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.81 2015/05/05 02:13:46 guenther Exp $	*/
 
 /*
  * Copyright (c) 1999-2004 Michael Shalayeff
@@ -37,7 +37,6 @@
 #include <sys/user.h>
 #include <sys/ptrace.h>
 #include <sys/exec.h>
-#include <sys/core.h>
 #include <sys/pool.h>
 
 #include <uvm/uvm_extern.h>
@@ -49,47 +48,6 @@
 
 extern struct pool hppa_fppl;
 
-/*
- * Dump the machine specific header information at the start of a core dump.
- */
-int
-cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *core)
-{
-	struct md_coredump md_core;
-	struct coreseg cseg;
-	off_t off;
-	int error;
-
-	CORE_SETMAGIC(*core, COREMAGIC, MID_HPPA, 0);
-	core->c_hdrsize = ALIGN(sizeof(*core));
-	core->c_seghdrsize = ALIGN(sizeof(cseg));
-	core->c_cpusize = sizeof(md_core);
-
-	process_read_regs(p, &md_core.md_reg);
-	process_read_fpregs(p, &md_core.md_fpreg);
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_HPPA, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = core->c_cpusize;
-
-#define	write(vp, addr, n) \
-	vn_rdwr(UIO_WRITE, (vp), (caddr_t)(addr), (n), off, \
-	    UIO_SYSSPACE, IO_UNIT, cred, NULL, p)
-
-	off = core->c_hdrsize;
-	if ((error = write(vp, &cseg, core->c_seghdrsize)))
-		return error;
-	off += core->c_seghdrsize;
-	if ((error = write(vp, &md_core, sizeof md_core)))
-		return error;
-
-#undef write
-	core->c_nseg++;
-
-	return error;
-}
-
 void
 cpu_fork(struct proc *p1, struct proc *p2, void *stack, size_t stacksize,
     void (*func)(void *), void *arg)
diff --git a/sys/arch/hppa/include/pcb.h b/sys/arch/hppa/include/pcb.h
index b24f037eac8..1c1a929285c 100644
--- a/sys/arch/hppa/include/pcb.h
+++ b/sys/arch/hppa/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.15 2011/11/10 22:48:13 deraadt Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.16 2015/05/05 02:13:46 guenther Exp $	*/
 
 /*
  * Copyright (c) 1999-2004 Michael Shalayeff
@@ -40,10 +40,4 @@ struct pcb {
 	pa_space_t	pcb_space;		/* copy pmap_space, for asm's sake */
 };
 
-struct md_coredump {
-	struct reg md_reg;
-	struct fpreg md_fpreg;
-}; 
-
-
 #endif /* _MACHINE_PCB_H_ */
diff --git a/sys/arch/hppa64/hppa64/vm_machdep.c b/sys/arch/hppa64/hppa64/vm_machdep.c
index f582b9167d0..fa9abd7fdf0 100644
--- a/sys/arch/hppa64/hppa64/vm_machdep.c
+++ b/sys/arch/hppa64/hppa64/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.21 2014/11/16 12:30:57 deraadt Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.22 2015/05/05 02:13:46 guenther Exp $	*/
 
 /*
  * Copyright (c) 2005 Michael Shalayeff
@@ -28,7 +28,6 @@
 #include <sys/user.h>
 #include <sys/ptrace.h>
 #include <sys/exec.h>
-#include <sys/core.h>
 #include <sys/pool.h>
 
 #include <uvm/uvm_extern.h>
@@ -39,47 +38,6 @@
 
 extern struct pool hppa_fppl;
 
-/*
- * Dump the machine specific header information at the start of a core dump.
- */
-int
-cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *core)
-{
-	struct md_coredump md_core;
-	struct coreseg cseg;
-	off_t off;
-	int error;
-
-	CORE_SETMAGIC(*core, COREMAGIC, MID_HPPA20, 0);
-	core->c_hdrsize = ALIGN(sizeof(*core));
-	core->c_seghdrsize = ALIGN(sizeof(cseg));
-	core->c_cpusize = sizeof(md_core);
-
-	process_read_regs(p, &md_core.md_reg);
-	process_read_fpregs(p, &md_core.md_fpreg);
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_HPPA20, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = core->c_cpusize;
-
-#define	write(vp, addr, n) \
-	vn_rdwr(UIO_WRITE, (vp), (caddr_t)(addr), (n), off, \
-	    UIO_SYSSPACE, IO_UNIT, cred, NULL, p)
-
-	off = core->c_hdrsize;
-	if ((error = write(vp, &cseg, core->c_seghdrsize)))
-		return error;
-	off += core->c_seghdrsize;
-	if ((error = write(vp, &md_core, sizeof md_core)))
-		return error;
-
-#undef write
-	core->c_nseg++;
-
-	return error;
-}
-
 void
 cpu_fork(struct proc *p1, struct proc *p2, void *stack, size_t stacksize,
     void (*func)(void *), void *arg)
diff --git a/sys/arch/hppa64/include/pcb.h b/sys/arch/hppa64/include/pcb.h
index 8ed995f81f9..2a8cee8eb8b 100644
--- a/sys/arch/hppa64/include/pcb.h
+++ b/sys/arch/hppa64/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.4 2011/11/10 23:15:11 deraadt Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.5 2015/05/05 02:13:46 guenther Exp $	*/
 
 /*
  * Copyright (c) 2005 Michael Shalayeff
@@ -31,10 +31,4 @@ struct pcb {
 	pa_space_t	pcb_space;		/* copy pmap_space, for asm's sake */
 };
 
-struct md_coredump {
-	struct reg md_reg;
-	struct fpreg md_fpreg;
-}; 
-
-
 #endif /* _MACHINE_PCB_H_ */
diff --git a/sys/arch/i386/i386/vm_machdep.c b/sys/arch/i386/i386/vm_machdep.c
index 5dd07849c52..c5357f94a5c 100644
--- a/sys/arch/i386/i386/vm_machdep.c
+++ b/sys/arch/i386/i386/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.62 2015/03/31 04:35:50 guenther Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.63 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.61 1996/05/03 19:42:35 christos Exp $	*/
 
 /*-
@@ -50,7 +50,6 @@
 #include <sys/vnode.h>
 #include <sys/buf.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/ptrace.h>
 
@@ -140,56 +139,6 @@ cpu_exit(struct proc *p)
 }
 
 /*
- * Dump the machine specific segment at the start of a core dump.
- */
-struct md_core {
-	struct reg intreg;
-	struct fpreg freg;
-};
-
-int
-cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *chdr)
-{
-	struct md_core md_core;
-	struct coreseg cseg;
-	int error;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_I386, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(md_core);
-
-	/* Save integer registers. */
-	error = process_read_regs(p, &md_core.intreg);
-	if (error)
-		return error;
-
-	/* Save floating point registers. */
-	error = process_read_fpregs(p, &md_core.freg);
-	if (error)
-		return error;
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_I386, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&md_core, sizeof(md_core),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	chdr->c_nseg++;
-	return 0;
-}
-
-/*
  * Convert kernel VA to physical address
  */
 int
diff --git a/sys/arch/i386/include/pcb.h b/sys/arch/i386/include/pcb.h
index 0693d7becf3..8fd23c94a81 100644
--- a/sys/arch/i386/include/pcb.h
+++ b/sys/arch/i386/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.17 2013/05/08 15:36:30 tedu Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.18 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.21 1996/01/08 13:51:42 mycroft Exp $	*/
 
 /*-
@@ -84,12 +84,4 @@ struct pcb {
 #define	TSEG_FS		0
 #define	TSEG_GS		1
 
-/*    
- * The pcb is augmented with machine-dependent additional data for 
- * core dumps. For the i386, there is nothing to add.
- */     
-struct md_coredump {
-	long	md_pad[8];
-};    
-
 #endif /* _MACHINE_PCB_H_ */
diff --git a/sys/arch/loongson/loongson/hibernate_machdep.c b/sys/arch/loongson/loongson/hibernate_machdep.c
index c7c9fc77002..d0d565d759f 100644
--- a/sys/arch/loongson/loongson/hibernate_machdep.c
+++ b/sys/arch/loongson/loongson/hibernate_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hibernate_machdep.c,v 1.7 2014/07/20 19:47:53 deraadt Exp $	*/
+/*	$OpenBSD: hibernate_machdep.c,v 1.8 2015/05/05 02:13:46 guenther Exp $	*/
 
 /*
  * Copyright (c) 2013 Paul Irofti.
@@ -26,7 +26,6 @@
 #include <sys/hibernate.h>
 #include <sys/timeout.h>
 #include <sys/malloc.h>
-#include <sys/kcore.h>
 
 #include <uvm/uvm_extern.h>
 #include <uvm/uvm_pmemrange.h>
diff --git a/sys/arch/loongson/loongson/machdep.c b/sys/arch/loongson/loongson/machdep.c
index c1b99e72467..eaef59d6460 100644
--- a/sys/arch/loongson/loongson/machdep.c
+++ b/sys/arch/loongson/loongson/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.61 2014/12/10 15:29:53 mikeb Exp $ */
+/*	$OpenBSD: machdep.c,v 1.62 2015/05/05 02:13:46 guenther Exp $ */
 
 /*
  * Copyright (c) 2009, 2010, 2014 Miodrag Vallat.
@@ -62,7 +62,6 @@
 #ifdef SYSVSEM
 #include <sys/sem.h>
 #endif
-#include <sys/kcore.h>
 
 #include <net/if.h>
 
diff --git a/sys/arch/m88k/include/pcb.h b/sys/arch/m88k/include/pcb.h
index 849e5113710..20504a9db61 100644
--- a/sys/arch/m88k/include/pcb.h
+++ b/sys/arch/m88k/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.6 2013/07/17 19:19:29 miod Exp $ */
+/*	$OpenBSD: pcb.h,v 1.7 2015/05/05 02:13:46 guenther Exp $ */
 /*
  * Copyright (c) 1996 Nivas Madhur
  * Mach Operating System
@@ -86,14 +86,4 @@ struct pcb
 #define	USER_REGS(p) \
 	(((struct reg *)(&((p)->p_addr->u_pcb.user_state))))
 
-/*
- * The pcb is augmented with machine-dependent additional data for
- * core dumps.  Note that the trapframe here is a copy of the one
- * from the top of the kernel stack (included here so that the kernel
- * stack itself need not be dumped).
- */
-struct md_coredump {
-	struct	trapframe md_tf;
-};
-
 #endif /* _M88K_PCB_H_ */
diff --git a/sys/arch/m88k/m88k/vm_machdep.c b/sys/arch/m88k/m88k/vm_machdep.c
index 08a27322e43..d4cb331f49b 100644
--- a/sys/arch/m88k/m88k/vm_machdep.c
+++ b/sys/arch/m88k/m88k/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.23 2014/11/16 12:30:58 deraadt Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.24 2015/05/05 02:13:47 guenther Exp $	*/
 
 /*
  * Copyright (c) 1998 Steve Murphree, Jr.
@@ -49,7 +49,6 @@
 #include <sys/buf.h>
 #include <sys/user.h>
 #include <sys/vnode.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/ptrace.h>
 
@@ -132,49 +131,6 @@ cpu_exit(struct proc *p)
 }
 
 /*
- * Dump the machine specific header information at the start of a core dump.
- */
-int
-cpu_coredump(p, vp, cred, chdr)
-	struct proc *p;
-	struct vnode *vp;
-	struct ucred *cred;
-	struct core *chdr;
-{
-	struct reg reg;
-	struct coreseg cseg;
-	int error;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(reg);
-
-	/* Save registers. */
-	error = process_read_regs(p, &reg);
-	if (error)
-		return error;
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&reg, sizeof(reg),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	chdr->c_nseg++;
-	return 0;
-}
-
-/*
  * Map an IO request into kernel virtual address space via phys_map.
  */
 void
diff --git a/sys/arch/mips64/include/pcb.h b/sys/arch/mips64/include/pcb.h
index 701ca2ae375..08c32512ecd 100644
--- a/sys/arch/mips64/include/pcb.h
+++ b/sys/arch/mips64/include/pcb.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: pcb.h,v 1.6 2014/03/22 00:01:04 miod Exp $	*/
+/*      $OpenBSD: pcb.h,v 1.7 2015/05/05 02:13:47 guenther Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -57,12 +57,4 @@ struct pcb {
 	vaddr_t	pcb_wiredpc;		/* last tracked pc value within above */
 };
 
-/*
- * The pcb is augmented with machine-dependent additional data for
- * core dumps. For the MIPS, there is nothing to add.
- */
-struct md_coredump {
-	long	md_pad[8];
-};
-
 #endif	/* !_MIPS64_PCB_H_ */
diff --git a/sys/arch/mips64/mips64/vm_machdep.c b/sys/arch/mips64/mips64/vm_machdep.c
index 900785dc59f..fbc0ca5b491 100644
--- a/sys/arch/mips64/mips64/vm_machdep.c
+++ b/sys/arch/mips64/mips64/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.31 2014/12/16 18:30:03 tedu Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.32 2015/05/05 02:13:47 guenther Exp $	*/
 /*
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1992, 1993
@@ -48,7 +48,6 @@
 #include <sys/buf.h>
 #include <sys/vnode.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/signalvar.h>
 
@@ -162,55 +161,6 @@ cpu_exit(p)
 	sched_exit(p);
 }
 
-/*
- * Dump the machine specific header information at the start of a core dump.
- */
-int
-cpu_coredump(p, vp, cred, chdr)
-	struct proc *p;
-	struct vnode *vp;
-	struct ucred *cred;
-	struct core *chdr;
-{
-	struct cpu_info *ci = curcpu();
-	int error;
-	/*register struct user *up = p->p_addr;*/
-	struct coreseg cseg;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_MIPS, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof (p -> p_addr -> u_pcb.pcb_regs);
-
-	/*
-	 * Copy floating point state from the FP chip if this process
-	 * has state stored there.
-	 */
-	if (p == ci->ci_fpuproc)
-		save_fpu();
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MIPS, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp,
-			(caddr_t)(&(p -> p_addr -> u_pcb.pcb_regs)),
-			(off_t)chdr -> c_cpusize,
-			(off_t)(chdr->c_hdrsize + chdr->c_seghdrsize),
-			UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-
-	if (!error)
-		chdr->c_nseg++;
-
-	return error;
-}
-
 extern vm_map_t phys_map;
 
 /*
diff --git a/sys/arch/powerpc/include/pcb.h b/sys/arch/powerpc/include/pcb.h
index edacac9d43f..c7b1a3823eb 100644
--- a/sys/arch/powerpc/include/pcb.h
+++ b/sys/arch/powerpc/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.13 2011/08/22 18:18:35 deraadt Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.14 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.1 1996/09/30 16:34:29 ws Exp $	*/
 
 /*-
@@ -61,10 +61,6 @@ struct pcb {
 	struct cpu_info *pcb_veccpu;
 };
 
-struct md_coredump {
-	struct reg regs;
-};
-
 #ifdef	_KERNEL
 extern struct proc *fpuproc;
 int  setfault(faultbuf *env) __returns_twice;
diff --git a/sys/arch/powerpc/powerpc/vm_machdep.c b/sys/arch/powerpc/powerpc/vm_machdep.c
index 475fe57504c..43e18f7401e 100644
--- a/sys/arch/powerpc/powerpc/vm_machdep.c
+++ b/sys/arch/powerpc/powerpc/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.47 2014/11/16 12:30:58 deraadt Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.48 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.1 1996/09/30 16:34:57 ws Exp $	*/
 
 /*
@@ -32,7 +32,6 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/param.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/pool.h>
 #include <sys/proc.h>
@@ -159,43 +158,6 @@ cpu_exit(struct proc *p)
 }
 
 /*
- * Write the machine-dependent part of a core dump.
- */
-int
-cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *chdr)
-{
-	struct coreseg cseg;
-	struct md_coredump md_core;
-	int error;
-	
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_POWERPC, 0);
-	chdr->c_hdrsize = ALIGN(sizeof *chdr);
-	chdr->c_seghdrsize = ALIGN(sizeof cseg);
-	chdr->c_cpusize = sizeof md_core;
-
-	process_read_regs(p, &(md_core.regs));
-	
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_POWERPC, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&md_core, sizeof md_core,
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	chdr->c_nseg++;
-	return 0;
-}
-
-/*
  * Map an IO request into kernel virtual address space.
  */
 void
diff --git a/sys/arch/sh/include/pcb.h b/sys/arch/sh/include/pcb.h
index e6d41940891..9b3262d4e97 100644
--- a/sys/arch/sh/include/pcb.h
+++ b/sys/arch/sh/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.3 2008/06/26 05:42:12 ray Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.4 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.7 2002/05/09 12:28:08 uch Exp $	*/
 
 /*-
@@ -42,9 +42,6 @@ struct pcb {
 	struct	fpreg		pcb_fp;		/* fp context for resume */
 };
 
-struct md_coredump {
-};
-
 extern struct pcb *curpcb;
 
 #endif /* !_SH_PCB_H_ */
diff --git a/sys/arch/sh/sh/sh_machdep.c b/sys/arch/sh/sh/sh_machdep.c
index d8eccbfccae..7d32f59db92 100644
--- a/sys/arch/sh/sh/sh_machdep.c
+++ b/sys/arch/sh/sh/sh_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sh_machdep.c,v 1.38 2015/01/20 19:43:21 kettenis Exp $	*/
+/*	$OpenBSD: sh_machdep.c,v 1.39 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: sh3_machdep.c,v 1.59 2006/03/04 01:13:36 uwe Exp $	*/
 
 /*
@@ -95,8 +95,6 @@
 #include <sys/sched.h>
 #include <sys/msg.h>
 #include <sys/conf.h>
-#include <sys/core.h>
-#include <sys/kcore.h>
 #include <sys/reboot.h>
 
 #include <uvm/uvm_extern.h>
diff --git a/sys/arch/sh/sh/vm_machdep.c b/sys/arch/sh/sh/vm_machdep.c
index b48aeba66d2..77b50487b5b 100644
--- a/sys/arch/sh/sh/vm_machdep.c
+++ b/sys/arch/sh/sh/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.12 2014/11/16 12:30:58 deraadt Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.13 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.53 2006/08/31 16:49:21 matt Exp $	*/
 
 /*
@@ -103,7 +103,6 @@
 #include <sys/vnode.h>
 #include <sys/buf.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/ptrace.h>
 #include <sys/signalvar.h>
@@ -246,63 +245,6 @@ cpu_fork(struct proc *p1, struct proc *p2, void *stack, size_t stacksize,
 }
 
 /*
- * Dump the machine specific segment at the start of a core dump.
- */
-struct md_core {
-	struct reg intreg;
-	struct fpreg fpreg;
-};
-
-int
-cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *chdr)
-{
-	struct md_core md_core;
-	struct coreseg cseg;
-	int error;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(md_core);
-
-	/* Save integer registers. */
-	error = process_read_regs(p, &md_core.intreg);
-	if (error)
-		return error;
-
-#ifdef SH4
-	if (CPU_IS_SH4) {
-		error = process_read_fpregs(p, &md_core.fpreg);
-		if (error)
-			return error;
-	}
-#endif
-#ifdef SH3
-	if (CPU_IS_SH3)
-		bzero(&md_core.fpreg, sizeof(md_core.fpreg));
-#endif
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&md_core, sizeof(md_core),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	chdr->c_nseg++;
-	return 0;
-}
-
-/*
  * Map an IO request into kernel virtual address space.
  * All requests are (re)mapped into kernel VA space via the phys_map
  * (a name with only slightly more meaning than "kernel_map")
diff --git a/sys/arch/sparc/include/pcb.h b/sys/arch/sparc/include/pcb.h
index 6942c653e93..fc98d187d97 100644
--- a/sys/arch/sparc/include/pcb.h
+++ b/sys/arch/sparc/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.6 2011/03/23 16:54:37 pirofti Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.7 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.4 1995/03/28 18:19:56 jtc Exp $ */
 
 /*
@@ -107,18 +107,6 @@ struct pcb {
 	struct	rwindow pcb_rw[PCB_MAXWIN];	/* saved windows */
 };
 
-/*
- * The pcb is augmented with machine-dependent additional data for
- * core dumps.  Note that the trapframe here is a copy of the one
- * from the top of the kernel stack (included here so that the kernel
- * stack itself need not be dumped).
- */
-struct md_coredump {
-	struct trapframe	md_tf;
-	struct fpstate		md_fpstate;
-	u_int32_t		md_wcookie;
-};
-
 #ifdef _KERNEL
 extern struct pcb *cpcb;
 #endif /* _KERNEL */
diff --git a/sys/arch/sparc/sparc/vm_machdep.c b/sys/arch/sparc/sparc/vm_machdep.c
index d0d611dce3c..e70d8c01878 100644
--- a/sys/arch/sparc/sparc/vm_machdep.c
+++ b/sys/arch/sparc/sparc/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.59 2015/03/30 20:30:22 miod Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.60 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.30 1997/03/10 23:55:40 pk Exp $ */
 
 /*
@@ -54,7 +54,6 @@
 #include <sys/proc.h>
 #include <sys/signalvar.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/malloc.h>
 #include <sys/buf.h>
 #include <sys/exec.h>
@@ -285,49 +284,3 @@ cpu_exit(p)
 	pmap_deactivate(p);
 	sched_exit(p);
 }
-
-/*
- * cpu_coredump is called to write a core dump header.
- * (should this be defined elsewhere?  machdep.c?)
- */
-int
-cpu_coredump(p, vp, cred, chdr)
-	struct proc *p;
-	struct vnode *vp;
-	struct ucred *cred;
-	struct core *chdr;
-{
-	int error;
-	struct md_coredump md_core;
-	struct coreseg cseg;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_SPARC, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(md_core);
-
-	md_core.md_tf = *p->p_md.md_tf;
-	md_core.md_wcookie = p->p_addr->u_pcb.pcb_wcookie;
-	if (p->p_md.md_fpstate) {
-		if (p == cpuinfo.fpproc)
-			savefpstate(p->p_md.md_fpstate);
-		md_core.md_fpstate = *p->p_md.md_fpstate;
-	} else
-		bzero((caddr_t)&md_core.md_fpstate, sizeof(struct fpstate));
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_SPARC, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&md_core, sizeof(md_core),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (!error)
-		chdr->c_nseg++;
-
-	return error;
-}
diff --git a/sys/arch/sparc64/include/pcb.h b/sys/arch/sparc64/include/pcb.h
index dc72ecad17a..108f669031c 100644
--- a/sys/arch/sparc64/include/pcb.h
+++ b/sys/arch/sparc64/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.9 2011/03/23 16:54:37 pirofti Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.10 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.7 2000/12/29 17:12:05 eeh Exp $ */
 
 /*
@@ -143,18 +143,6 @@ struct pcb {
 	u_int64_t	pcb_rwsp[PCB_MAXWIN];
 };
 
-/*
- * The pcb is augmented with machine-dependent additional data for
- * core dumps.  Note that the trapframe here is a copy of the one
- * from the top of the kernel stack (included here so that the kernel
- * stack itself need not be dumped).
- */
-struct md_coredump {
-	struct	trapframe64 md_tf;
-	struct	fpstate64 md_fpstate;
-	u_int64_t md_wcookie;
-};
-
 #ifndef _KERNEL
 /* Let gdb compile.  We need fancier macros to make these make sense. */
 #define pcb_psr	pcb_pstate
diff --git a/sys/arch/sparc64/sparc64/vm_machdep.c b/sys/arch/sparc64/sparc64/vm_machdep.c
index 61494dd2856..e8484e52a43 100644
--- a/sys/arch/sparc64/sparc64/vm_machdep.c
+++ b/sys/arch/sparc64/sparc64/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.32 2014/11/16 12:30:59 deraadt Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.33 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.38 2001/06/30 00:02:20 eeh Exp $ */
 
 /*
@@ -53,7 +53,6 @@
 #include <sys/systm.h>
 #include <sys/proc.h>
 #include <sys/user.h>
-#include <sys/core.h>
 #include <sys/malloc.h>
 #include <sys/buf.h>
 #include <sys/exec.h>
@@ -369,50 +368,3 @@ cpu_exit(struct proc *p)
 	pmap_deactivate(p);
 	sched_exit(p);
 }
-
-/*
- * cpu_coredump is called to write a core dump header.
- * (should this be defined elsewhere?  machdep.c?)
- */
-int
-cpu_coredump(p, vp, cred, chdr)
-	struct proc *p;
-	struct vnode *vp;
-	struct ucred *cred;
-	struct core *chdr;
-{
-	int error;
-	struct md_coredump md_core;
-	struct coreseg cseg;
-
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
-	chdr->c_hdrsize = ALIGN(sizeof(*chdr));
-	chdr->c_seghdrsize = ALIGN(sizeof(cseg));
-	chdr->c_cpusize = sizeof(md_core);
-
-	md_core.md_tf = *p->p_md.md_tf;
-	md_core.md_wcookie = p->p_addr->u_pcb.pcb_wcookie;
-	if (p->p_md.md_fpstate) {
-		fpusave_proc(p, 1);
-		md_core.md_fpstate = *p->p_md.md_fpstate;
-	} else
-		bzero((caddr_t)&md_core.md_fpstate, 
-		      sizeof(md_core.md_fpstate));
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&md_core, sizeof(md_core),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-	if (!error)
-		chdr->c_nseg++;
-
-	return error;
-}
-
diff --git a/sys/arch/vax/include/pcb.h b/sys/arch/vax/include/pcb.h
index b8732d54d10..bbc96b002b7 100644
--- a/sys/arch/vax/include/pcb.h
+++ b/sys/arch/vax/include/pcb.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pcb.h,v 1.8 2013/11/24 22:08:23 miod Exp $	*/
+/*	$OpenBSD: pcb.h,v 1.9 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: pcb.h,v 1.10 1996/02/02 18:08:26 mycroft Exp $	*/
 
 /*
@@ -69,10 +69,5 @@ struct pcb {
 #define	AST_MASK 0x07000000
 #define	AST_PCB	 0x04000000
 
-/* machine-specific core dump; save regs */
-struct	md_coredump {
-	struct reg md_reg;
-};
-
 #endif /* _MACHINE_PCB_H_ */
 
diff --git a/sys/arch/vax/vax/vm_machdep.c b/sys/arch/vax/vax/vm_machdep.c
index 7ab91cfa425..a47c00ae0c3 100644
--- a/sys/arch/vax/vax/vm_machdep.c
+++ b/sys/arch/vax/vax/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vm_machdep.c,v 1.42 2014/11/16 12:30:59 deraadt Exp $	*/
+/*	$OpenBSD: vm_machdep.c,v 1.43 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: vm_machdep.c,v 1.67 2000/06/29 07:14:34 mrg Exp $	     */
 
 /*
@@ -39,7 +39,6 @@
 #include <sys/user.h>
 #include <sys/exec.h>
 #include <sys/vnode.h>
-#include <sys/core.h>
 #include <sys/mount.h>
 #include <sys/device.h>
 
@@ -179,56 +178,6 @@ sys_sysarch(p, v, retval)
 };
 
 /*
- * Dump the machine specific header information at the start of a core dump.
- * First put all regs in PCB for debugging purposes. This is not an good
- * way to do this, but good for my purposes so far.
- */
-int
-cpu_coredump(p, vp, cred, chdr)
-	struct proc *p;
-	struct vnode *vp;
-	struct ucred *cred;
-	struct core *chdr;
-{
-	struct trapframe *tf;
-	struct md_coredump state;
-	struct reg *regs = &state.md_reg;
-	struct coreseg cseg;
-	int error;
-
-	tf = p->p_addr->u_pcb.framep;
-	CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
-	chdr->c_hdrsize = sizeof(struct core);
-	chdr->c_seghdrsize = sizeof(struct coreseg);
-	chdr->c_cpusize = sizeof(struct md_coredump);
-
-	bcopy(&tf->r0, &regs->r0, 12 * sizeof(int));
-	regs->ap = tf->ap;
-	regs->fp = tf->fp;
-	regs->sp = tf->sp;
-	regs->pc = tf->pc;
-	regs->psl = tf->psl;
-
-	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
-	cseg.c_addr = 0;
-	cseg.c_size = chdr->c_cpusize;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cseg, chdr->c_seghdrsize,
-	    (off_t)chdr->c_hdrsize, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	if (error)
-		return error;
-
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&state, sizeof(state),
-	    (off_t)(chdr->c_hdrsize + chdr->c_seghdrsize), UIO_SYSSPACE,
-	    IO_UNIT, cred, NULL, p);
-
-	if (!error)
-		chdr->c_nseg++;
-
-	return error;
-}
-
-/*
  * Map in a bunch of pages read/writeable for the kernel.
  */
 void
diff --git a/sys/arch/zaurus/zaurus/zaurus_machdep.c b/sys/arch/zaurus/zaurus/zaurus_machdep.c
index edc2c6e0325..55578bee94f 100644
--- a/sys/arch/zaurus/zaurus/zaurus_machdep.c
+++ b/sys/arch/zaurus/zaurus/zaurus_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: zaurus_machdep.c,v 1.56 2015/01/18 10:17:42 jsg Exp $	*/
+/*	$OpenBSD: zaurus_machdep.c,v 1.57 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: lubbock_machdep.c,v 1.2 2003/07/15 00:25:06 lukem Exp $ */
 
 /*
@@ -121,7 +121,6 @@
 #include <sys/msgbuf.h>
 #include <sys/reboot.h>
 #include <sys/termios.h>
-#include <sys/kcore.h>
 
 #include <uvm/uvm_extern.h>
 
diff --git a/sys/compat/linux/linux_exec.c b/sys/compat/linux/linux_exec.c
index d8b592f917d..4982f3bb1fe 100644
--- a/sys/compat/linux/linux_exec.c
+++ b/sys/compat/linux/linux_exec.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: linux_exec.c,v 1.42 2014/07/12 18:50:00 tedu Exp $	*/
+/*	$OpenBSD: linux_exec.c,v 1.43 2015/05/05 02:13:47 guenther Exp $	*/
 /*	$NetBSD: linux_exec.c,v 1.13 1996/04/05 00:01:10 christos Exp $	*/
 
 /*-
@@ -39,7 +39,6 @@
 #include <sys/namei.h>
 #include <sys/vnode.h>
 #include <sys/mount.h>
-#include <sys/core.h>
 #include <sys/exec.h>
 #include <sys/exec_elf.h>
 
@@ -96,7 +95,7 @@ struct emul emul_linux_elf = {
 	elf32_copyargs,
 	setregs,
 	exec_elf32_fixup,
-	coredump_trad,
+	NULL,			/* coredump */
 	linux_sigcode,
 	linux_esigcode,
 	0,
diff --git a/sys/ddb/db_structinfo.c b/sys/ddb/db_structinfo.c
index 7e6309eb764..06b4949f591 100644
--- a/sys/ddb/db_structinfo.c
+++ b/sys/ddb/db_structinfo.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: db_structinfo.c,v 1.12 2015/01/27 10:12:45 dlg Exp $ */
+/* $OpenBSD: db_structinfo.c,v 1.13 2015/05/05 02:13:46 guenther Exp $ */
 /* public domain */
 /*
  * This file is intended to be compiled with debug information,
@@ -15,7 +15,6 @@
 #include <sys/acct.h>
 #include <sys/buf.h>
 #include <sys/conf.h>
-#include <sys/core.h>
 #include <sys/disk.h>
 #include <sys/disklabel.h>
 #include <sys/dirent.h>
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index 3888890d6b3..6c71f382e93 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: init_main.c,v 1.238 2015/05/01 11:18:21 miod Exp $	*/
+/*	$OpenBSD: init_main.c,v 1.239 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: init_main.c,v 1.84.4.1 1996/06/02 09:08:06 mrg Exp $	*/
 
 /*
@@ -39,7 +39,6 @@
  */
 
 #include <sys/param.h>
-#include <sys/core.h>
 #include <sys/filedesc.h>
 #include <sys/file.h>
 #include <sys/errno.h>
@@ -169,8 +168,8 @@ struct emul emul_native = {
 	0,
 	copyargs,
 	setregs,
-	NULL,
-	coredump_trad,
+	NULL,		/* fixup */
+	NULL,		/* coredump */
 	sigcode,
 	esigcode,
 	EMUL_ENABLED | EMUL_NATIVE,
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index fe9e4c58cae..501d4011689 100644
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kern_sig.c,v 1.179 2015/03/14 03:38:50 jsg Exp $	*/
+/*	$OpenBSD: kern_sig.c,v 1.180 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: kern_sig.c,v 1.54 1996/04/22 01:38:32 christos Exp $	*/
 
 /*
@@ -1457,6 +1457,9 @@ coredump(struct proc *p)
 	char name[MAXPATHLEN];
 	const char *dir = "/var/crash";
 
+	if (pr->ps_emul->e_coredump == NULL)
+		return (EINVAL);
+
 	pr->ps_flags |= PS_COREDUMP;
 
 	/*
@@ -1559,45 +1562,6 @@ out:
 #endif
 }
 
-int
-coredump_trad(struct proc *p, void *cookie)
-{
-#ifdef SMALL_KERNEL
-	return EPERM;
-#else
-	struct coredump_iostate *io = cookie;
-	struct vmspace *vm = io->io_proc->p_vmspace;
-	struct vnode *vp = io->io_vp;
-	struct ucred *cred = io->io_cred;
-	struct core core;
-	int error;
-
-	core.c_midmag = 0;
-	strlcpy(core.c_name, p->p_comm, sizeof(core.c_name));
-	core.c_nseg = 0;
-	core.c_signo = p->p_sisig;
-	core.c_ucode = p->p_sitrapno;
-	core.c_cpusize = 0;
-	core.c_tsize = (u_long)ptoa(vm->vm_tsize);
-	core.c_dsize = (u_long)ptoa(vm->vm_dsize);
-	core.c_ssize = (u_long)round_page(ptoa(vm->vm_ssize));
-	error = cpu_coredump(p, vp, cred, &core);
-	if (error)
-		return (error);
-	/*
-	 * uvm_coredump() spits out all appropriate segments.
-	 * All that's left to do is to write the core header.
-	 */
-	error = uvm_coredump(p, vp, cred, &core);
-	if (error)
-		return (error);
-	error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&core,
-	    (int)core.c_hdrsize, (off_t)0,
-	    UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-	return (error);
-#endif
-}
-
 #ifndef SMALL_KERNEL
 int
 coredump_write(void *cookie, enum uio_seg segflg, const void *data, size_t len)
diff --git a/sys/sys/core.h b/sys/sys/core.h
index 464fa5843df..2ffb893c69f 100644
--- a/sys/sys/core.h
+++ b/sys/sys/core.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: core.h,v 1.5 2013/01/15 01:34:27 deraadt Exp $	*/
+/*	$OpenBSD: core.h,v 1.6 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: core.h,v 1.4 1994/10/29 08:20:14 cgd Exp $	*/
 
 /*
@@ -56,7 +56,9 @@
 #define CORE_DATA	2
 #define CORE_STACK	4
 
+#ifndef _KERNEL
 /*
+ * XXX OBSOLETE, NO LONGER USED
  * A core file consists of a header followed by a number of segments.
  * Each segment is preceded by a `coreseg' structure giving the
  * segment's type, the virtual address where the bits resided in
@@ -87,9 +89,7 @@ struct coreseg {
 	u_long	c_size;			/* Size of this segment */
 };
 
-#ifdef _KERNEL
-int	coredump_trad(struct proc *, void *);
-
+#else
 int	coredump_write(void *, enum uio_seg, const void *, size_t);
 void	coredump_unmap(void *, vaddr_t, vaddr_t);
 #endif
diff --git a/sys/sys/signalvar.h b/sys/sys/signalvar.h
index ede4326b1bd..a38788bbd98 100644
--- a/sys/sys/signalvar.h
+++ b/sys/sys/signalvar.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: signalvar.h,v 1.27 2014/03/22 06:05:45 guenther Exp $	*/
+/*	$OpenBSD: signalvar.h,v 1.28 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: signalvar.h,v 1.17 1996/04/22 01:23:31 christos Exp $	*/
 
 /*
@@ -176,10 +176,5 @@ void	sigactsfree(struct process *);
  */
 void	sendsig(sig_t action, int sig, int returnmask, u_long code,
 	    int type, union sigval val);
-struct core;
-struct vnode;
-struct ucred;
-int	cpu_coredump(struct proc *, struct vnode *, struct ucred *,
-			  struct core *);
 #endif	/* _KERNEL */
 #endif	/* !_SYS_SIGNALVAR_H_ */
diff --git a/sys/uvm/uvm_extern.h b/sys/uvm/uvm_extern.h
index ddee989106b..68b97337042 100644
--- a/sys/uvm/uvm_extern.h
+++ b/sys/uvm/uvm_extern.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_extern.h,v 1.131 2015/02/07 08:21:24 miod Exp $	*/
+/*	$OpenBSD: uvm_extern.h,v 1.132 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: uvm_extern.h,v 1.57 2001/03/09 01:02:12 chs Exp $	*/
 
 /*
@@ -167,7 +167,6 @@ typedef int		vm_prot_t;
 
 #ifdef _KERNEL
 struct buf;
-struct core;
 struct mount;
 struct pglist;
 struct vmspace;
@@ -462,8 +461,6 @@ int			uvm_pglistalloc(psize_t, paddr_t, paddr_t,
 void			uvm_pglistfree(struct pglist *);
 void			uvm_pmr_use_inc(paddr_t, paddr_t);
 void			uvm_swap_init(void);
-int			uvm_coredump(struct proc *, struct vnode *, 
-			    struct ucred *, struct core *);
 int			uvm_coredump_walkmap(struct proc *,
 			    void *, int (*)(struct proc *, void *,
 			    struct uvm_coredump_state *), void *);
diff --git a/sys/uvm/uvm_unix.c b/sys/uvm/uvm_unix.c
index 69fb33546db..366a14e986e 100644
--- a/sys/uvm/uvm_unix.c
+++ b/sys/uvm/uvm_unix.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_unix.c,v 1.55 2015/02/09 09:39:09 miod Exp $	*/
+/*	$OpenBSD: uvm_unix.c,v 1.56 2015/05/05 02:13:46 guenther Exp $	*/
 /*	$NetBSD: uvm_unix.c,v 1.18 2000/09/13 15:00:25 thorpej Exp $	*/
 
 /*
@@ -50,7 +50,6 @@
 #include <sys/proc.h>
 #include <sys/resourcevar.h>
 #include <sys/vnode.h>
-#include <sys/core.h>
 
 #include <sys/mount.h>
 #include <sys/syscallargs.h>
@@ -137,119 +136,9 @@ uvm_grow(struct proc *p, vaddr_t sp)
 #ifndef SMALL_KERNEL
 
 /*
- * uvm_coredump: dump core!
+ * Walk the VA space for a process, invoking 'func' on each present range
+ * that should be included in a coredump.
  */
-
-int
-uvm_coredump(struct proc *p, struct vnode *vp, struct ucred *cred,
-    struct core *chdr)
-{
-	struct vmspace *vm = p->p_vmspace;
-	vm_map_t map = &vm->vm_map;
-	vm_map_entry_t entry, safe;
-	vaddr_t start, end, top;
-	struct coreseg cseg;
-	off_t offset, coffset;
-	int csize, chunk, flag, error = 0;
-
-	offset = chdr->c_hdrsize + chdr->c_seghdrsize + chdr->c_cpusize;
-
-	RB_FOREACH_SAFE(entry, uvm_map_addr, &map->addr, safe) {
-		/* should never happen for a user process */
-		if (UVM_ET_ISSUBMAP(entry)) {
-			panic("uvm_coredump: user process with submap?");
-		}
-
-		if (!(entry->protection & PROT_WRITE) &&
-		    entry->start != p->p_p->ps_sigcode)
-			continue;
-
-		/* Don't dump mmaped devices. */
-		if (entry->object.uvm_obj != NULL &&
-		    UVM_OBJ_IS_DEVICE(entry->object.uvm_obj))
-			continue;
-
-		start = entry->start;
-		end = entry->end;
-
-		if (start >= VM_MAXUSER_ADDRESS)
-			continue;
-
-		if (end > VM_MAXUSER_ADDRESS)
-			end = VM_MAXUSER_ADDRESS;
-
-#ifdef MACHINE_STACK_GROWS_UP
-		if ((vaddr_t)vm->vm_maxsaddr <= start &&
-		    start < ((vaddr_t)vm->vm_maxsaddr + MAXSSIZ)) {
-			top = round_page((vaddr_t)vm->vm_maxsaddr +
-			    ptoa(vm->vm_ssize));
-			if (end > top)
-				end = top;
-
-			if (start >= end)
-				continue;
-#else
-		if (start >= (vaddr_t)vm->vm_maxsaddr) {
-			top = trunc_page((vaddr_t)vm->vm_minsaddr -
-			    ptoa(vm->vm_ssize));
-			if (start < top)
-				start = top;
-
-			if (start >= end)
-				continue;
-#endif
-			flag = CORE_STACK;
-		} else
-			flag = CORE_DATA;
-
-		/* Set up a new core file segment. */
-		CORE_SETMAGIC(cseg, CORESEGMAGIC, CORE_GETMID(*chdr), flag);
-		cseg.c_addr = start;
-		cseg.c_size = end - start;
-
-		error = vn_rdwr(UIO_WRITE, vp,
-		    (caddr_t)&cseg, chdr->c_seghdrsize,
-		    offset, UIO_SYSSPACE, IO_UNIT, cred, NULL, p);
-		/*
-		 * We might get an EFAULT on objects mapped beyond
-		 * EOF. Ignore the error.
-		 */
-		if (error && error != EFAULT)
-			break;
-
-		offset += chdr->c_seghdrsize;
-
-		coffset = 0;
-		csize = (int)cseg.c_size;
-		do {
-			if (p->p_siglist & sigmask(SIGKILL))
-				return (EINTR);
-
-			/* Rest of the loop sleeps with lock held, so... */
-			yield();
-
-			chunk = MIN(csize, MAXPHYS);
-			error = vn_rdwr(UIO_WRITE, vp,
-			    (caddr_t)(u_long)cseg.c_addr + coffset,
-			    chunk, offset + coffset, UIO_USERSPACE,
-			    IO_UNIT, cred, NULL, p);
-			if (error)
-				return (error);
-
-			coffset += chunk;
-			csize -= chunk;
-		} while (csize > 0);
-		offset += cseg.c_size;
-
-		/* Discard the memory */
-		uvm_unmap(map, cseg.c_addr, cseg.c_addr + cseg.c_size);
-
-		chdr->c_nseg++;
-	}
-
-	return (error);
-}
-
 int
 uvm_coredump_walkmap(struct proc *p, void *iocookie,
     int (*func)(struct proc *, void *, struct uvm_coredump_state *),
@@ -269,7 +158,7 @@ uvm_coredump_walkmap(struct proc *p, void *iocookie,
 
 		/* should never happen for a user process */
 		if (UVM_ET_ISSUBMAP(entry)) {
-			panic("uvm_coredump: user process with submap?");
+			panic("%s: user process with submap?", __func__);
 		}
 
 		if (!(entry->protection & PROT_WRITE) &&