1 files changed, 103 insertions, 0 deletions
diff --git a/system_cmds/gcore.tproj/loader_additions.h b/system_cmds/gcore.tproj/loader_additions.h
new file mode 100644
index 0000000..16cf5b5
--- /dev/null
+++ b/system_cmds/gcore.tproj/loader_additions.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2015 Apple Inc.  All rights reserved.
+ */
+
+#include <mach-o/loader.h>
+
+#ifndef _LOADER_ADDITIONS_H
+#define _LOADER_ADDITIONS_H
+
+/*
+ * Something like this should end up in <mach-o/loader.h>
+ */
+
+#define proto_LC_COREINFO	0x140	/* unofficial value!! */
+
+#define proto_CORETYPE_KERNEL	1
+#define proto_CORETYPE_USER		2
+#define proto_CORETYPE_IBOOT	3
+
+struct proto_coreinfo_command {
+    uint32_t cmd;		/* LC_COREINFO */
+    uint32_t cmdsize;	/* total size of this command */
+    uint32_t version;	/* currently 1 */
+    uint16_t type;		/* CORETYPE_KERNEL, CORETYPE_USER etc. */
+	uint16_t pageshift;	/* log2 host pagesize */
+	/* content & interpretation depends on 'type' field */
+    uint64_t address;   /* load address of "main binary" */
+    uint8_t uuid[16];   /* uuid of "main binary" */
+    uint64_t dyninfo;   /* dynamic modules info */
+};
+
+#define proto_LC_FILEREF 0x141 /* unofficial value! */
+
+#define FREF_ID_SHIFT		0
+#define FREF_ID_MASK		0x7	/* up to 8 flavors */
+
+typedef enum {
+	kFREF_ID_NONE = 0,			/* file has no available verifying ID */
+	kFREF_ID_UUID = 1,			/* file has an associated UUID */
+	kFREF_ID_MTIMESPEC_LE = 2,	/* file has a specific mtime */
+								/* one day: file has a computed hash? */
+} fref_type_t;
+
+#define FREF_ID_TYPE(f)		((fref_type_t)(((f) >> FREF_ID_SHIFT) & FREF_ID_MASK))
+#define FREF_MAKE_FLAGS(t)	(((t) & FREF_ID_MASK) << FREF_ID_SHIFT)
+
+struct proto_fileref_command {
+    uint32_t cmd;	/* LC_FILEREF */
+    uint32_t cmdsize;
+    union lc_str filename;  /* filename these bits come from */
+    uint8_t id[16];		/* uuid, size or hash etc. */
+    uint64_t vmaddr;	/* memory address of this segment */
+    uint64_t vmsize;	/* memory size of this segment */
+    uint64_t fileoff;	/* file offset of this segment */
+    uint64_t filesize;	/* amount to map from the file */
+    vm_prot_t maxprot;	/* maximum VM protection */
+    vm_prot_t prot;	/* current VM protection */
+	uint32_t flags;
+    uint8_t share_mode;	/* SM_COW etc. */
+    uint8_t purgable;	/* VM_PURGABLE_NONVOLATILE etc. */
+    uint8_t tag;	/* VM_MEMORY_MALLOC etc. */
+    uint8_t extp;	/* external pager */
+};
+
+#define proto_LC_COREDATA	0x142	/* unofficial value! */
+
+/*
+ * These are flag bits for the segment_command 'flags' field.
+ */
+
+#define COMP_ALG_MASK 0x7
+/* carve out 3 bits for an enum i.e. allow for 7 flavors */
+#define COMP_ALG_SHIFT 4 /* (bottom 4 bits taken) */
+
+/* zero -> no compression */
+typedef enum {
+	kCOMP_NONE	= 0,
+	kCOMP_LZ4   = 1,	/* 0x100 */
+	kCOMP_ZLIB  = 2,	/* 0x205 */
+	kCOMP_LZMA  = 3,	/* 0x306 */
+	kCOMP_LZFSE = 4,	/* 0x801 */
+} compression_flavor_t;
+
+#define COMP_ALG_TYPE(f)	((compression_flavor_t)((f) >> COMP_ALG_SHIFT) & COMP_ALG_MASK)
+#define COMP_MAKE_FLAGS(t)	(((t) & COMP_ALG_MASK) << COMP_ALG_SHIFT)
+
+struct proto_coredata_command {
+    uint32_t cmd;	/* LC_COREDATA */
+    uint32_t cmdsize;
+    uint64_t vmaddr;	/* memory address of this segment */
+    uint64_t vmsize;	/* memory size of this segment */
+    uint64_t fileoff;	/* file offset of this segment */
+    uint64_t filesize;	/* amount to map from the file */
+    vm_prot_t maxprot;	/* maximum VM protection */
+    vm_prot_t prot;	/* current VM protection */
+    uint32_t flags;
+    uint8_t share_mode;	/* SM_COW etc. */
+    uint8_t purgable;	/* VM_PURGABLE_NONVOLATILE etc. */
+    uint8_t tag;	/* VM_MEMORY_MALLOC etc. */
+    uint8_t extp;	/* external pager */
+};
+
+#endif /* _LOADER_ADDITIONS_H */