#include "kxld_uuid.h"
#include "kxld_versionmin.h"
#include "kxld_vtable.h"
+#include "kxld_splitinfolc.h"
#include "kxld_object.h"
+extern boolean_t isSplitKext;
+extern boolean_t isOldInterface;
+
/*******************************************************************************
* Data structures
*******************************************************************************/
struct kxld_object {
- u_char *file;
- u_long size;
+ u_char *file; // used by old interface
+ u_long size; // used by old interface
const char *name;
uint32_t filetype;
cpu_type_t cputype;
KXLDsrcversion srcversion;
KXLDSymtab *symtab;
struct dysymtab_command *dysymtab_hdr;
+ KXLDsplitinfolc splitinfolc;
+ splitKextLinkInfo split_info;
kxld_addr_t link_addr;
u_long output_buffer_size;
boolean_t is_kernel;
*******************************************************************************/
static boolean_t kxld_object_target_needs_swap(const KXLDObject *object __unused);
static KXLDSeg * kxld_object_get_seg_by_name(const KXLDObject *object, const char *segname);
-static KXLDSect * kxld_object_get_sect_by_name(const KXLDObject *object, const char *segname,
+static KXLDSect * kxld_object_get_sect_by_name(const KXLDObject *object, const char *segname,
const char *sectname);
/*******************************************************************************
kern_return_t rval = KERN_FAILURE;
KXLDSeg * seg = NULL;
u_int i = 0;
+ u_char * my_file;
check(object);
check(file);
rval = get_macho_slice_for_arch(object, file, size);
require_noerr(rval, finish);
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
+
/* Allocate the symbol table */
if (!object->symtab) {
/* Build the relocator */
- rval = kxld_relocator_init(&object->relocator, object->file,
- object->symtab, &object->sects, object->cputype,
- object->cpusubtype, kxld_object_target_needs_swap(object));
+ rval = kxld_relocator_init(&object->relocator,
+ my_file,
+ object->symtab, &object->sects,
+ object->cputype,
+ object->cpusubtype,
+ kxld_object_target_needs_swap(object));
require_noerr(rval, finish);
/* There are four types of Mach-O files that we can support:
*/
if (kxld_object_is_32_bit(object)) {
- struct mach_header *mach_hdr = (struct mach_header *) ((void *) object->file);
+ struct mach_header *mach_hdr = (struct mach_header *) ((void *) my_file);
object->filetype = mach_hdr->filetype;
} else {
- struct mach_header_64 *mach_hdr = (struct mach_header_64 *) ((void *) object->file);
+ struct mach_header_64 *mach_hdr = (struct mach_header_64 *) ((void *) my_file);
object->filetype = mach_hdr->filetype;
}
, &object->locrelocs, &object->extrelocs,
target_supports_slideable_kexts(object)
#endif
+ , isOldInterface ? 0 : object->splitinfolc.datasize
);
}
}
-
+
(void) set_is_object_linked(object);
rval = KERN_SUCCESS;
return rval;
}
+/*******************************************************************************
+ *******************************************************************************/
+splitKextLinkInfo *
+kxld_object_get_link_info(KXLDObject *object)
+{
+ check(object);
+
+ return &object->split_info;
+}
+
+
+/*******************************************************************************
+ *******************************************************************************/
+void
+kxld_object_set_link_info(KXLDObject *object, splitKextLinkInfo *link_info)
+{
+ check(object);
+ check(link_info);
+
+ object->split_info.vmaddr_TEXT = link_info->vmaddr_TEXT;
+ object->split_info.vmaddr_TEXT_EXEC = link_info->vmaddr_TEXT_EXEC;
+ object->split_info.vmaddr_DATA = link_info->vmaddr_DATA;
+ object->split_info.vmaddr_DATA_CONST = link_info->vmaddr_DATA_CONST;
+ object->split_info.vmaddr_LINKEDIT = link_info->vmaddr_LINKEDIT;
+
+ return;
+}
+
/*******************************************************************************
*******************************************************************************/
kern_return_t
struct fat_arch *archs = (struct fat_arch *) &fat[1];
boolean_t swap = FALSE;
#endif /* KERNEL */
-
+ u_char *my_file = file;
+ u_long my_file_size = size;
+
check(object);
check(file);
check(size);
- object->file = file;
- object->size = size;
-
/* We are assuming that we will never receive a fat file in the kernel */
#if !KERNEL
rval=KERN_FAILURE;
kxld_log(kKxldLogLinking, kKxldLogErr, kKxldLogTruncatedMachO));
- object->file = file + arch->offset;
- object->size = arch->size;
+ my_file = my_file + arch->offset;
+ my_file_size = arch->size;
}
#endif /* !KERNEL */
/* Swap the Mach-O's headers to this architecture if necessary */
if (kxld_object_is_32_bit(object)) {
- rval = validate_and_swap_macho_32(object->file, object->size
+ rval = validate_and_swap_macho_32(my_file, my_file_size
#if !KERNEL
, object->host_order
#endif /* !KERNEL */
);
} else {
- rval = validate_and_swap_macho_64(object->file, object->size
+ rval = validate_and_swap_macho_64(my_file, my_file_size
#if !KERNEL
, object->host_order
#endif /* !KERNEL */
}
require_noerr(rval, finish);
- mach_hdr = (struct mach_header *) ((void *) object->file);
+ mach_hdr = (struct mach_header *) ((void *) my_file);
require_action(object->cputype == mach_hdr->cputype, finish,
rval=KERN_FAILURE;
kxld_log(kKxldLogLinking, kKxldLogErr, kKxldLogTruncatedMachO));
object->cpusubtype = mach_hdr->cpusubtype; /* <rdar://problem/16008438> */
+ if (isOldInterface) {
+ object->file = my_file;
+ object->size = my_file_size;
+ }
+ else {
+ object->split_info.kextExecutable = my_file;
+ object->split_info.kextSize = my_file_size;
+ }
+
rval = KERN_SUCCESS;
finish:
return rval;
u_int nsegs = 0;
u_int nsects = 0;
u_int ncmds = 0;
+ u_char *my_file;
+
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
KXLD_3264_FUNC(kxld_object_is_32_bit(object), base_offset,
get_macho_cmd_data_32, get_macho_cmd_data_64,
- object->file, offset, &filetype, &ncmds);
+ my_file, offset, &filetype, &ncmds);
/* First pass to count segments and sections */
offset = base_offset;
for (i = 0; i < ncmds; ++i, offset += cmd_hdr->cmdsize) {
- cmd_hdr = (struct load_command *) ((void *) (object->file + offset));
+ cmd_hdr = (struct load_command *) ((void *) (my_file + offset));
switch(cmd_hdr->cmd) {
#if KXLD_USER_OR_ILP32
offset = base_offset;
for (i = 0; i < ncmds; ++i, offset += cmd_hdr->cmdsize) {
- cmd_hdr = (struct load_command *) ((void *) (object->file + offset));
+ cmd_hdr = (struct load_command *) ((void *) (my_file + offset));
seg = NULL;
switch(cmd_hdr->cmd) {
break;
case LC_VERSION_MIN_MACOSX:
case LC_VERSION_MIN_IPHONEOS:
+ case LC_VERSION_MIN_TVOS:
case LC_VERSION_MIN_WATCHOS:
versionmin_hdr = (struct version_min_command *) cmd_hdr;
kxld_versionmin_init_from_macho(&object->versionmin, versionmin_hdr);
break;
case LC_DYSYMTAB:
object->dysymtab_hdr = (struct dysymtab_command *) cmd_hdr;
-
rval = kxld_reloc_create_macho(&object->extrelocs, &object->relocator,
- (struct relocation_info *) ((void *) (object->file + object->dysymtab_hdr->extreloff)),
+ (struct relocation_info *) ((void *) (my_file + object->dysymtab_hdr->extreloff)),
object->dysymtab_hdr->nextrel);
require_noerr(rval, finish);
rval = kxld_reloc_create_macho(&object->locrelocs, &object->relocator,
- (struct relocation_info *) ((void *) (object->file + object->dysymtab_hdr->locreloff)),
+ (struct relocation_info *) ((void *) (my_file + object->dysymtab_hdr->locreloff)),
object->dysymtab_hdr->nlocrel);
require_noerr(rval, finish);
"LC_UNIXTHREAD/LC_MAIN segment is not valid in a kext."));
break;
case LC_SEGMENT_SPLIT_INFO:
- /* To be implemented later; treat as uninteresting for now */
+ if (isSplitKext) {
+ struct linkedit_data_command *split_info_hdr = NULL;
+ split_info_hdr = (struct linkedit_data_command *) (void *) cmd_hdr;
+ kxld_splitinfolc_init_from_macho(&object->splitinfolc, split_info_hdr);
+ }
+ break;
case LC_CODE_SIGNATURE:
case LC_DYLD_INFO:
case LC_DYLD_INFO_ONLY:
/* Initialize the sections */
for (j = 0; j < seg->sects.nitems; ++j, ++secti) {
sect = kxld_array_get_item(&object->sects, secti);
+
KXLD_3264_FUNC(kxld_object_is_32_bit(object), rval,
- kxld_sect_init_from_macho_32, kxld_sect_init_from_macho_64,
- sect, object->file, §_offset, secti, &object->relocator);
+ kxld_sect_init_from_macho_32, kxld_sect_init_from_macho_64,
+ sect, my_file, §_offset, secti, &object->relocator);
require_noerr(rval, finish);
/* Add the section to the segment. This will also make sure
KXLDSectionName *sname = NULL;
u_int i = 0, j = 0, k = 0;
#endif /* KXLD_USER_OR_OBJECT */
-
+ u_char *my_file;
+
check(object);
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
+
require_action(kxld_object_is_kernel(object), finish, rval=KERN_FAILURE);
-
+
rval = init_from_final_linked_image(object, &filetype, &symtab_hdr);
require_noerr(rval, finish);
KXLD_3264_FUNC(kxld_object_is_32_bit(object), rval,
kxld_symtab_init_from_macho_32, kxld_symtab_init_from_macho_64,
- object->symtab, symtab_hdr, object->file, kernel_linkedit_seg);
+ object->symtab, symtab_hdr, my_file, kernel_linkedit_seg);
require_noerr(rval, finish);
#if KXLD_USER_OR_OBJECT
kern_return_t rval = KERN_FAILURE;
struct symtab_command *symtab_hdr = NULL;
u_int filetype = 0;
-
+ u_char *my_file;
+
check(object);
+
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
require_action(target_supports_bundle(object), finish,
rval=KERN_FAILURE;
rval = init_from_final_linked_image(object, &filetype, &symtab_hdr);
require_noerr(rval, finish);
- require_action(filetype == MH_KEXT_BUNDLE, finish,
+ require_action(filetype == MH_KEXT_BUNDLE, finish,
rval=KERN_FAILURE);
KXLD_3264_FUNC(kxld_object_is_32_bit(object), rval,
kxld_symtab_init_from_macho_32, kxld_symtab_init_from_macho_64,
- object->symtab, symtab_hdr, object->file,
+ object->symtab, symtab_hdr, my_file,
/* kernel_linkedit_seg */ NULL);
require_noerr(rval, finish);
rval = KERN_SUCCESS;
finish:
- return rval;
+ return rval;
}
#endif /* KXLD_USER_OR_BUNDLE */
u_int nsects = 0;
u_int i = 0;
boolean_t has_segment = FALSE;
-
+ u_char *my_file;
+
check(object);
+
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
require_action(target_supports_object(object),
finish, rval=KERN_FAILURE;
KXLD_3264_FUNC(kxld_object_is_32_bit(object), offset,
get_macho_cmd_data_32, get_macho_cmd_data_64,
- object->file, offset, &filetype, &ncmds);
+ my_file, offset, &filetype, &ncmds);
require_action(filetype == MH_OBJECT, finish, rval=KERN_FAILURE);
*/
for (; i < ncmds; ++i, offset += cmd_hdr->cmdsize) {
- cmd_hdr = (struct load_command *) ((void *) (object->file + offset));
+ cmd_hdr = (struct load_command *) ((void *) (my_file + offset));
switch(cmd_hdr->cmd) {
#if KXLD_USER_OR_ILP32
KXLD_3264_FUNC(kxld_object_is_32_bit(object), rval,
kxld_symtab_init_from_macho_32, kxld_symtab_init_from_macho_64,
- object->symtab, symtab_hdr, object->file,
+ object->symtab, symtab_hdr, my_file,
/* kernel_linkedit_seg */ NULL);
require_noerr(rval, finish);
break;
break;
case LC_VERSION_MIN_MACOSX:
case LC_VERSION_MIN_IPHONEOS:
+ case LC_VERSION_MIN_TVOS:
case LC_VERSION_MIN_WATCHOS:
case LC_SOURCE_VERSION:
/* Not supported for object files, fall through */
for (i = 0; i < nsects; ++i) {
sect = kxld_array_get_item(&object->sects, i);
+
KXLD_3264_FUNC(kxld_object_is_32_bit(object), rval,
- kxld_sect_init_from_macho_32, kxld_sect_init_from_macho_64,
- sect, object->file, §_offset, i, &object->relocator);
+ kxld_sect_init_from_macho_32, kxld_sect_init_from_macho_64,
+ sect, my_file, §_offset, i, &object->relocator);
require_noerr(rval, finish);
}
header_size += kxld_srcversion_get_macho_header_size();
}
+ if (isSplitKext && object->splitinfolc.has_splitinfolc) {
+ header_size += kxld_splitinfolc_get_macho_header_size();
+ }
+
return header_size;
}
/* get current __LINKEDIT sizes */
seg = kxld_object_get_seg_by_name(object, SEG_LINKEDIT);
- seg_vmsize = (u_long) kxld_seg_get_vmsize(seg);
+ seg_vmsize = (u_long) kxld_seg_get_vmsize(seg);
+
/* get size of symbol table data that will eventually be dumped
* into the __LINKEDIT segment
*/
if (kxld_object_is_final_image(object)) {
reloc = kxld_reloc_get_reloc_by_offset(&object->extrelocs,
- sym->base_addr);
+ sym->base_addr);
if (!reloc) {
reloc = kxld_reloc_get_reloc_by_offset(&object->locrelocs,
- sym->base_addr);
+ sym->base_addr);
}
} else {
offset = kxld_sym_get_section_offset(sym, sect);
const KXLDReloc *reloc, const KXLDSect *sect)
{
const KXLDSym *sym = NULL;
-
- if (kxld_object_is_final_image(object)) {
- sym = kxld_reloc_get_symbol(&object->relocator, reloc, object->file);
- } else {
- sym = kxld_reloc_get_symbol(&object->relocator, reloc, sect->data);
+ u_char *my_file;
+
+ if (isOldInterface) {
+ my_file = object->file;
}
-
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
+
+ if (kxld_object_is_final_image(object)) {
+ sym = kxld_reloc_get_symbol(&object->relocator, reloc, my_file);
+ } else {
+ sym = kxld_reloc_get_symbol(&object->relocator, reloc, sect->data);
+ }
return sym;
}
/*******************************************************************************
*******************************************************************************/
-void kxld_object_clear(KXLDObject *object __unused)
+void kxld_object_clear(KXLDObject *object)
{
KXLDSeg *seg = NULL;
KXLDSect *sect = NULL;
u_int i;
-
+ u_char *my_file;
+
check(object);
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
+
#if !KERNEL
if (kxld_object_is_kernel(object)) {
- unswap_macho(object->file, object->host_order, object->target_order);
+ unswap_macho(my_file, object->host_order, object->target_order);
}
#endif /* !KERNEL */
if (object->symtab) kxld_symtab_clear(object->symtab);
- object->file = NULL;
- object->size = 0;
+ if (isOldInterface) {
+ object->file = NULL;
+ object->size = 0;
+ }
+ else {
+ kxld_splitinfolc_clear(&object->splitinfolc);
+ object->split_info.kextExecutable = NULL;
+ object->split_info.kextSize = 0;
+ }
object->filetype = 0;
object->cputype = 0;
object->cpusubtype = 0;
KXLDSeg *seg = NULL;
KXLDSect *sect = NULL;
u_int i;
-
+ u_char *my_file;
+
check(object);
+
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
#if !KERNEL
- if (object->file && kxld_object_is_kernel(object)) {
- unswap_macho(object->file, object->host_order, object->target_order);
+ if (my_file && kxld_object_is_kernel(object)) {
+ unswap_macho(my_file, object->host_order, object->target_order);
}
#endif /* !KERNEL */
const u_char *
kxld_object_get_file(const KXLDObject *object)
{
+ const u_char *my_file;
+
check(object);
- return object->file;
+ if (isOldInterface) {
+ my_file = object->file;
+ }
+ else {
+ my_file = object->split_info.kextExecutable;
+ }
+
+ return my_file;
}
/*******************************************************************************
return (object->cputype == CPU_TYPE_I386);
}
+
+/*******************************************************************************
+ *******************************************************************************/
+void
+kxld_object_get_vmsize_for_seg_by_name(const KXLDObject *object,
+ const char *segname,
+ u_long *vmsize)
+{
+ check(object);
+ check(segname);
+ check(vmsize);
+
+ KXLDSeg *seg = NULL;
+ u_long my_size = 0;
+
+ /* segment vmsize */
+ seg = kxld_object_get_seg_by_name(object, segname);
+
+ my_size = (u_long) kxld_seg_get_vmsize(seg);
+
+#if KXLD_PIC_KEXTS
+ if (kxld_seg_is_linkedit_seg(seg))
+ {
+ u_long reloc_size = 0;
+
+ if (target_supports_slideable_kexts(object)) {
+ /* get size of __DYSYMTAB relocation entries */
+ reloc_size = kxld_reloc_get_macho_data_size(&object->locrelocs, &object->extrelocs);
+ my_size += reloc_size;
+ }
+ }
+#endif
+
+ *vmsize = my_size;
+}
+
/*******************************************************************************
*******************************************************************************/
void
*header_size = (object->is_final_image) ?
0 : (u_long)kxld_round_page_cross_safe(get_macho_header_size(object));
+
*vmsize = *header_size + get_macho_data_size(object);
}
void
kxld_object_set_linked_object_size(KXLDObject *object, u_long vmsize)
{
- object->output_buffer_size = vmsize; /* cache this for use later */
+ check(object);
+
+ if (isOldInterface) {
+ object->output_buffer_size = vmsize; /* cache this for use later */
+ }
+ else {
+ object->split_info.linkedKextSize = vmsize;
+ }
return;
}
*******************************************************************************/
kern_return_t
kxld_object_export_linked_object(const KXLDObject *object,
- u_char *linked_object)
+ void *linked_object
+ )
{
kern_return_t rval = KERN_FAILURE;
KXLDSeg *seg = NULL;
u_int ncmds = 0;
u_int i = 0;
boolean_t is_32bit_object = kxld_object_is_32_bit(object);
+ kxld_addr_t link_addr;
+ u_char *my_linked_object;
check(object);
check(linked_object);
+
+ if (isOldInterface) {
+ size = object->output_buffer_size;
+ link_addr = object->link_addr;
+ my_linked_object = (u_char *) linked_object;
+ }
+ else {
+ size = ((splitKextLinkInfo *)linked_object)->linkedKextSize;
+ link_addr = ((splitKextLinkInfo *)linked_object)->vmaddr_TEXT;
+ my_linked_object = ((splitKextLinkInfo *)linked_object)->linkedKext;
+ }
/* Calculate the size of the headers and data */
header_size = get_macho_header_size(object);
- size = object->output_buffer_size;
-
+
/* Copy data to the file */
ncmds = object->segs.nitems + 1 /* LC_SYMTAB */;
ncmds++;
}
- rval = export_macho_header(object, linked_object, ncmds, &header_offset, header_size);
- require_noerr(rval, finish);
+ if (isSplitKext && object->splitinfolc.has_splitinfolc) {
+ ncmds++;
+ }
+ rval = export_macho_header(object, my_linked_object, ncmds, &header_offset, header_size);
+ require_noerr(rval, finish);
+
for (i = 0; i < object->segs.nitems; ++i) {
seg = kxld_array_get_item(&object->segs, i);
- rval = kxld_seg_export_macho_to_vm(seg, linked_object, &header_offset,
- header_size, size, object->link_addr, is_32bit_object);
- require_noerr(rval, finish);
+ rval = kxld_seg_export_macho_to_vm(seg, my_linked_object, &header_offset,
+ header_size, size, link_addr, is_32bit_object);
+ require_noerr(rval, finish);
}
seg = kxld_object_get_seg_by_name(object, SEG_LINKEDIT);
- data_offset = (u_long) (seg->link_addr - object->link_addr);
+ data_offset = (u_long) (seg->link_addr - link_addr);
- rval = kxld_symtab_export_macho(object->symtab, linked_object, &header_offset,
- header_size, &data_offset, size, is_32bit_object);
+ // data_offset is used to set the fileoff in the macho header load commands
+ rval = kxld_symtab_export_macho(object->symtab,
+ my_linked_object,
+ &header_offset,
+ header_size,
+ &data_offset, size, is_32bit_object);
require_noerr(rval, finish);
+ // data_offset now points past the symbol tab and strings data in the linkedit
+ // segment - (it was used to set new values for symoff and stroff)
+
#if KXLD_PIC_KEXTS
if (target_supports_slideable_kexts(object)) {
- rval = kxld_reloc_export_macho(&object->relocator, &object->locrelocs,
- &object->extrelocs, linked_object, &header_offset, header_size,
- &data_offset, size);
+ rval = kxld_reloc_export_macho(&object->relocator,
+ &object->locrelocs,
+ &object->extrelocs,
+ my_linked_object,
+ &header_offset,
+ header_size,
+ &data_offset, size);
require_noerr(rval, finish);
}
#endif /* KXLD_PIC_KEXTS */
if (object->uuid.has_uuid) {
- rval = kxld_uuid_export_macho(&object->uuid, linked_object, &header_offset, header_size);
+ rval = kxld_uuid_export_macho(&object->uuid, my_linked_object, &header_offset, header_size);
require_noerr(rval, finish);
}
if (object->versionmin.has_versionmin) {
- rval = kxld_versionmin_export_macho(&object->versionmin, linked_object, &header_offset, header_size);
+ rval = kxld_versionmin_export_macho(&object->versionmin, my_linked_object, &header_offset, header_size);
require_noerr(rval, finish);
}
if (object->srcversion.has_srcversion) {
- rval = kxld_srcversion_export_macho(&object->srcversion, linked_object, &header_offset, header_size);
+ rval = kxld_srcversion_export_macho(&object->srcversion, my_linked_object, &header_offset, header_size);
require_noerr(rval, finish);
}
-
+
+ if (isSplitKext && object->splitinfolc.has_splitinfolc) {
+ rval = kxld_splitinfolc_export_macho(&object->splitinfolc,
+ linked_object,
+ &header_offset,
+ header_size,
+ &data_offset,
+ size);
+ require_noerr(rval, finish);
+ }
+
#if !KERNEL
- unswap_macho(linked_object, object->host_order, object->target_order);
+ unswap_macho(my_linked_object, object->host_order, object->target_order);
#endif /* KERNEL */
rval = KERN_SUCCESS;
rval = KERN_SUCCESS;
finish:
- return rval;
+ return rval;
}
#if KXLD_USER_OR_ILP32
check(object);
check(buf);
check(header_offset);
-
+
require_action(sizeof(*mach) <= header_size - *header_offset, finish,
rval=KERN_FAILURE);
mach = (struct mach_header *) ((void *) (buf + *header_offset));
mach->flags = MH_NOUNDEFS;
*header_offset += sizeof(*mach);
-
+
rval = KERN_SUCCESS;
finish:
mach->flags = MH_NOUNDEFS;
*header_offset += sizeof(*mach);
-
+
+#if SPLIT_KEXTS_DEBUG
+ {
+ kxld_log(kKxldLogLinking, kKxldLogErr,
+ " %p >>> Start of macho header (size %lu) <%s>",
+ (void *) mach,
+ sizeof(*mach),
+ __func__);
+ kxld_log(kKxldLogLinking, kKxldLogErr,
+ " %p <<< End of macho header <%s>",
+ (void *) ((u_char *)mach + sizeof(*mach)),
+ __func__);
+ }
+#endif
+
rval = KERN_SUCCESS;
finish:
for (i = 0; i < object->segs.nitems; ++i) {
seg = kxld_array_get_item(&object->segs, i);
kxld_seg_relocate(seg, link_address);
- }
+ } // for...
/* Relocate symbols */
rval = kxld_symtab_relocate(object->symtab, &object->sects);
rval = KERN_SUCCESS;
finish:
- return rval;
+ return rval;
}
/*******************************************************************************
rval = KERN_SUCCESS;
finish:
- return rval;
+ return rval;
}
#if KXLD_USER_OR_BUNDLE
+#if SPLIT_KEXTS_DEBUG
+static boolean_t kxld_show_ptr_value;
+#endif
+
#define SECT_SYM_PTRS "__nl_symbol_ptr"
/*******************************************************************************
/* Get the __DATA,__nl_symbol_ptr section. If it doesn't exist, we have
* nothing to do.
*/
-
+
sect = kxld_object_get_sect_by_name(object, SEG_DATA, SECT_SYM_PTRS);
if (!sect || !(sect->flags & S_NON_LAZY_SYMBOL_POINTERS)) {
rval = KERN_SUCCESS;
* action is required.
*/
- symidx = (int32_t *) ((void *) (object->file + object->dysymtab_hdr->indirectsymoff));
+ if (isOldInterface) {
+ symidx = (int32_t *) ((void *) (object->file + object->dysymtab_hdr->indirectsymoff));
+ }
+ else {
+ symidx = (int32_t *) ((void *) (object->split_info.kextExecutable + object->dysymtab_hdr->indirectsymoff));
+ }
+
symidx += firstsym;
symptr = sect->data;
for (i = 0; i < nsyms; ++i, ++symidx, symptr+=symptrsize) {
if (*symidx & INDIRECT_SYMBOL_LOCAL) {
if (*symidx & INDIRECT_SYMBOL_ABS) continue;
- add_to_ptr(symptr, object->link_addr, kxld_object_is_32_bit(object));
+ if (isOldInterface) {
+ add_to_ptr(symptr, object->link_addr, kxld_object_is_32_bit(object));
+ }
+ else {
+ add_to_ptr(symptr, object->split_info.vmaddr_TEXT, kxld_object_is_32_bit(object));
+ }
} else {
sym = kxld_symtab_get_symbol_by_index(object->symtab, *symidx);
require_action(sym, finish, rval=KERN_FAILURE);
-
- add_to_ptr(symptr, sym->link_addr, kxld_object_is_32_bit(object));
+
+ if (isOldInterface) {
+ add_to_ptr(symptr, sym->link_addr, kxld_object_is_32_bit(object));
+ }
+ else {
+ add_to_ptr(symptr, object->split_info.vmaddr_TEXT, kxld_object_is_32_bit(object));
+ }
}
}
seg = get_seg_by_base_addr(object, reloc->address);
require_action(seg, finish, rval=KERN_FAILURE);
- rval = kxld_relocator_process_table_reloc(&object->relocator, reloc,
- seg, object->link_addr);
+ if (isOldInterface) {
+ rval = kxld_relocator_process_table_reloc(&object->relocator, reloc,
+ seg, object->link_addr);
+ }
+ else {
+ kxld_addr_t my_link_addr = object->split_info.vmaddr_TEXT;
+ if (isSplitKext) {
+ if (kxld_seg_is_text_exec_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_TEXT_EXEC;
+ }
+ else if (kxld_seg_is_data_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_DATA;
+ }
+ else if (kxld_seg_is_data_const_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_DATA_CONST;
+ }
+ else if (kxld_seg_is_linkedit_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_LINKEDIT;
+ }
+ }
+ rval = kxld_relocator_process_table_reloc(&object->relocator,
+ reloc,
+ seg,
+ my_link_addr);
+ }
require_noerr(rval, finish);
}
seg = get_seg_by_base_addr(object, reloc->address);
require_action(seg, finish, rval=KERN_FAILURE);
-
- rval = kxld_relocator_process_table_reloc(&object->relocator, reloc,
- seg, object->link_addr);
+
+ if (isOldInterface) {
+ rval = kxld_relocator_process_table_reloc(&object->relocator, reloc,
+ seg, object->link_addr);
+ }
+ else {
+ kxld_addr_t my_link_addr = object->split_info.vmaddr_TEXT;
+ if (isSplitKext) {
+ if (kxld_seg_is_text_exec_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_TEXT_EXEC;
+ }
+ else if (kxld_seg_is_data_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_DATA;
+ }
+ else if (kxld_seg_is_data_const_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_DATA_CONST;
+ }
+ else if (kxld_seg_is_linkedit_seg(seg)) {
+ my_link_addr = object->split_info.vmaddr_LINKEDIT;
+ }
+ }
+ rval = kxld_relocator_process_table_reloc(&object->relocator,
+ reloc,
+ seg,
+ my_link_addr);
+ }
require_noerr(rval, finish);
}
{
if (is_32_bit) {
uint32_t *ptr = (uint32_t *) ((void *) symptr);
+
*ptr += (uint32_t) val;
} else {
uint64_t *ptr = (uint64_t *) ((void *) symptr);
+
*ptr += (uint64_t) val;
}
+
+#if SPLIT_KEXTS_DEBUG
+ kxld_show_ptr_value = FALSE;
+#endif
+
}
#endif /* KXLD_USER_OR_BUNDLE */
kxld_log(kKxldLogLinking, kKxldLogErr, kKxldLogNoKmodInfo));
kmodsect = kxld_array_get_item(&object->sects, kmodsym->sectnum);
+
kmod_offset = (u_long) (kmodsym->base_addr - kmodsect->base_addr);
kmod_info = (kmod_info_t *) ((void *) (kmodsect->data + kmod_offset));
if (kxld_object_is_32_bit(object)) {
kmod_info_32_v1_t *kmod = (kmod_info_32_v1_t *) (kmod_info);
- kmod->address = (uint32_t) object->link_addr;
+
+ if (isOldInterface) {
+ kmod->address = (uint32_t) object->link_addr;
+ }
+ else {
+ kmod->address = (uint32_t) object->split_info.vmaddr_TEXT;
+ }
+
kmod->size = (uint32_t) size;
kmod->hdr_size = (uint32_t) header_size;
#endif /* !KERNEL */
} else {
kmod_info_64_v1_t *kmod = (kmod_info_64_v1_t *) (kmod_info);
- kmod->address = object->link_addr;
+
+ if (isOldInterface) {
+ kmod->address = object->link_addr;
+ }
+ else {
+ kmod->address = object->split_info.vmaddr_TEXT;
+ }
+
kmod->size = size;
kmod->hdr_size = header_size;
kmod->hdr_size = OSSwapInt64(kmod->hdr_size);
}
#endif /* !KERNEL */
- }
+
+#if SPLIT_KEXTS_DEBUG
+ {
+ kxld_log(kKxldLogLinking, kKxldLogErr,
+ " kmodsect %p kmod_info %p = kmodsect->data %p + kmod_offset %lu <%s>",
+ (void *) kmodsect,
+ (void *) kmod_info,
+ (void *) kmodsect->data,
+ kmod_offset,
+ __func__);
+
+ kxld_log(kKxldLogLinking, kKxldLogErr,
+ " kmod_info data: address %p size %llu hdr_size %llu start_addr %p stop_addr %p <%s>",
+ (void *) kmod->address,
+ kmod->size,
+ kmod->hdr_size,
+ (void *) kmod->start_addr,
+ (void *) kmod->stop_addr,
+ __func__);
+ }
+#endif
+ }
rval = KERN_SUCCESS;
projects / apple / xnu.git / blobdiff