Factor out duplicated code from dumpsys() on each architecture into generic

code in sys/kern/kern_dump.c. Most dumpsys() implementations are nearly
identical and simply redefine a number of constants and helper subroutines;
a generic implementation will make it easier to implement features around
kernel core dumps. This change does not alter any minidump code and should
have no functional impact.

PR:		193873
Differential Revision:	https://reviews.freebsd.org/D904
Submitted by:	Conrad Meyer <conrad.meyer@isilon.com>
Reviewed by:	jhibbits (earlier version)
Sponsored by:	EMC / Isilon Storage Division

1 files changed, 87 insertions, 0 deletions

diff --git a/sys/x86/include/dump.h b/sys/x86/include/dump.h
new file mode 100644
index 0000000..91c72ac
--- /dev/null
+++ b/sys/x86/include/dump.h
@@ -0,0 +1,87 @@
+/*-
+ * Copyright (c) 2014 EMC Corp.
+ * Author: Conrad Meyer <conrad.meyer@isilon.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_DUMP_H_
+#define	_MACHINE_DUMP_H_
+
+#ifdef __amd64__
+#define	KERNELDUMP_ARCH_VERSION	KERNELDUMP_AMD64_VERSION
+#define	EM_VALUE		EM_X86_64
+#else
+#define	KERNELDUMP_ARCH_VERSION	KERNELDUMP_I386_VERSION
+#define	EM_VALUE		EM_386
+#endif
+
+/* 20 phys_avail entry pairs correspond to 10 pa's */
+#define	DUMPSYS_MD_PA_NPAIRS	10
+#define	DUMPSYS_NUM_AUX_HDRS	0
+
+static inline void
+dumpsys_pa_init(void)
+{
+
+	dumpsys_gen_pa_init();
+}
+
+static inline struct dump_pa *
+dumpsys_pa_next(struct dump_pa *p)
+{
+
+	return (dumpsys_gen_pa_next(p));
+}
+
+static inline void
+dumpsys_wbinv_all(void)
+{
+
+	dumpsys_gen_wbinv_all();
+}
+
+static inline void
+dumpsys_unmap_chunk(vm_paddr_t pa, size_t s, void *va)
+{
+
+	dumpsys_gen_unmap_chunk(pa, s, va);
+}
+
+static inline int
+dumpsys_write_aux_headers(struct dumperinfo *di)
+{
+
+	return (dumpsys_gen_write_aux_headers(di));
+}
+
+static inline int
+dumpsys(struct dumperinfo *di)
+{
+
+	return (dumpsys_generic(di));
+}
+
+#endif  /* !_MACHINE_DUMP_H_ */