common upgrades

Change-Id: I567fc15845b601019d346569ecfcef4f89687fd2

include/sys/elf_core.h

@@ -0,0 +1,50 @@
+/*
+ * This file mainly provides a definition of the structures used
+ * to describe the notes section of an ELF file.
+ *
+ * It is the interface between MINIX core dump and GDB
+ */
+
+#ifndef _SYS_ELF_CORE_H_
+#define _SYS_ELF_CORE_H_
+
+#include <sys/param.h>
+#include <machine/stackframe.h>
+
+/* MINIX core file format:
+ *
+ * The core file is in ELF format. Besides the regular program segments,
+ * it has a NOTE segment which contains two NOTE entries
+ * - one containing a minix_elfcore_info_t and the other one containing
+ * the general purpose registers (a stackframe_s structure)
+ */
+
+typedef struct stackframe_s gregset_t; /* General purpose registers */
+
+/*
+ * A lot more things should be added to these structures.  At present,
+ * they contain the absolute bare minimum required to allow GDB to work
+ * with MINIX ELF core dumps.
+ */
+
+#define ELF_NOTE_MINIX_ELFCORE_NAME	"MINIX-CORE"
+#define NT_MINIX_ELFCORE_INFO		1
+#define NT_MINIX_ELFCORE_GREGS		2
+
+#define MINIX_ELFCORE_VERSION		1  /* Current version of minix_elfcore_info_t */
+#define RESERVED_SIZE                   5
+
+typedef struct minix_elfcore_info {
+  /* Version 1 fields */
+  uint32_t	mei_version;		/* Version number of struct */
+  uint32_t	mei_meisize;		/* sizeof(minix_elfcore_info_t) */
+  uint32_t	mei_signo;		/* killing signal */
+  int32_t	mei_pid;		/* Process ID */
+  int8_t        mei_command[MAXCOMLEN]; /* Command */
+  uint32_t      flags;                  /* Flags */
+  int32_t       reserved[RESERVED_SIZE];/* Reserved space*/
+  /* Put below version 2 fields */
+} minix_elfcore_info_t;
+
+#endif /* _SYS_ELF_CORE_H_ */
+