From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001 From: Cameron Katri Date: Sun, 9 May 2021 14:20:58 -0400 Subject: Import macOS userland adv_cmds-176 basic_cmds-55 bootstrap_cmds-116.100.1 developer_cmds-66 diskdev_cmds-667.40.1 doc_cmds-53.60.1 file_cmds-321.40.3 mail_cmds-35 misc_cmds-34 network_cmds-606.40.1 patch_cmds-17 remote_cmds-63 shell_cmds-216.60.1 system_cmds-880.60.2 text_cmds-106 --- system_cmds/gcore.tproj/region.h | 133 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 system_cmds/gcore.tproj/region.h (limited to 'system_cmds/gcore.tproj/region.h') diff --git a/system_cmds/gcore.tproj/region.h b/system_cmds/gcore.tproj/region.h new file mode 100644 index 0000000..77853b2 --- /dev/null +++ b/system_cmds/gcore.tproj/region.h @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2016 Apple Inc. All rights reserved. + */ + +#include +#include +#include +#include + +#ifndef _REGION_H +#define _REGION_H + +/* + * A range of virtual memory + */ +struct vm_range { + mach_vm_offset_t addr; + mach_vm_offset_t size; +}; + +#define _V_ADDR(g) ((g)->addr) +#define _V_SIZE(g) ((g)->size) +#define V_SETADDR(g, a) ((g)->addr = (a)) +#define V_SETSIZE(g, z) ((g)->size = (z)) +#define V_ENDADDR(g) (_V_ADDR(g) + _V_SIZE(g)) + +static __inline const mach_vm_offset_t V_ADDR(const struct vm_range *vr) { + return _V_ADDR(vr); +} +static __inline const mach_vm_offset_t V_SIZE(const struct vm_range *vr) { + return _V_SIZE(vr); +} +static __inline const size_t V_SIZEOF(const struct vm_range *vr) { + assert((typeof (vr->size))(size_t)_V_SIZE(vr) == _V_SIZE(vr)); + return (size_t)_V_SIZE(vr); +} + +/* + * A range of offsets into a file + */ +struct file_range { + off_t off; + off_t size; +}; + +#define F_OFF(f) ((f)->off) +#define F_SIZE(f) ((f)->size) + +struct regionop; +struct subregion; + +struct region { + STAILQ_ENTRY(region) r_linkage; + + struct vm_range r_range; + +#define R_RANGE(r) (&(r)->r_range) +#define _R_ADDR(r) _V_ADDR(R_RANGE(r)) +#define _R_SIZE(r) _V_SIZE(R_RANGE(r)) +#define R_SIZEOF(r) V_SIZEOF(R_RANGE(r)) +#define R_SETADDR(r, a) V_SETADDR(R_RANGE(r), (a)) +#define R_SETSIZE(r, z) V_SETSIZE(R_RANGE(r), (z)) +#define R_ENDADDR(r) (_R_ADDR(r) + _R_SIZE(r)) + + vm_region_submap_info_data_64_t r_info; + vm_page_info_basic_data_t r_pageinfo; + + int r_purgable; + +#ifdef CONFIG_SUBMAP + int r_depth; +#endif + boolean_t r_insharedregion, r_inzfodregion, r_incommregion; + + /* + * This field may be non-NULL if the region is a read-only part + * of a mapped file (i.e. the shared cache) and thus + * doesn't need to be copied. + */ + struct { + const struct libent *fr_libent; + const char *fr_pathname; + off_t fr_offset; + } *r_fileref; + + /* + * These (optional) fields are filled in after we parse the information + * about the dylibs we've mapped, as provided by dyld. + */ + struct subregion **r_subregions; + unsigned r_nsubregions; + + const struct regionop *r_op; +}; + +static __inline const mach_vm_offset_t R_ADDR(const struct region *r) { + return _R_ADDR(r); +} +static __inline const mach_vm_offset_t R_SIZE(const struct region *r) { + return _R_SIZE(r); +} + +/* + * Describes the disposition of the region after a walker returns + */ +typedef enum { + WALK_CONTINUE, // press on .. + WALK_DELETE_REGION, // discard this region, then continue + WALK_TERMINATE, // early termination, no error + WALK_ERROR, // early termination, error +} walk_return_t; + +struct size_core; +struct write_segment_data; + +typedef walk_return_t walk_region_cbfn_t(struct region *, void *); + +struct regionop { + void (*rop_print)(const struct region *); + walk_return_t (*rop_write)(const struct region *, struct write_segment_data *); + void (*rop_delete)(struct region *); +}; + +#define ROP_PRINT(r) (((r)->r_op->rop_print)(r)) +#define ROP_WRITE(r, w) (((r)->r_op->rop_write)(r, w)) +#define ROP_DELETE(r) (((r)->r_op->rop_delete)(r)) + +extern const struct regionop vanilla_ops, sparse_ops, zfod_ops; +extern const struct regionop fileref_ops; + +struct regionhead; + +#endif /* _REGION_H */ -- cgit v1.2.3-56-ge451