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--- xnu/xnu-12377.101.15/libsyscall/wrappers/_libkernel_init.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright (c) 2010-2025 Apple Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-
-#include <TargetConditionals.h>
-#include <stdbool.h>
-#include <strings.h>
-#include <unistd.h>
-#include <machine/cpu_capabilities.h>
-#include <mach/vm_page_size.h>
-#include <spawn_filtering_private.h>
-#include "_simple_getenv.h"
-#include "_commpage_pfz.h"
-#include "_libkernel_init.h"
-#include "system-version-compat-support.h"
-
-extern int mach_init(void);
-
-#if SYSTEM_VERSION_COMPAT_ENABLED
-
-#include <sys/sysctl.h>
-
-extern bool _system_version_compat_check_path_suffix(const char *orig_path);
-extern int _system_version_compat_open_shim(int opened_fd, int openat_fd, const char *orig_path, int oflag, mode_t mode,
- int (*close_syscall)(int), int (*open_syscall)(const char *, int, mode_t),
- int (*openat_syscall)(int, const char *, int, mode_t),
- int (*fcntl_syscall)(int, int, long));
-
-extern bool (*system_version_compat_check_path_suffix)(const char *orig_path);
-extern int (*system_version_compat_open_shim)(int opened_fd, int openat_fd, const char *orig_path, int oflag, mode_t mode,
- int (*close_syscall)(int), int (*open_syscall)(const char *, int, mode_t),
- int (*openat_syscall)(int, const char *, int, mode_t),
- int (*fcntl_syscall)(int, int, long));
-
-extern system_version_compat_mode_t system_version_compat_mode;
-
-int __sysctlbyname(const char *name, size_t namelen, void *oldp, size_t *oldlenp, void *newp, size_t newlen);
-#endif /* SYSTEM_VERSION_COMPAT_ENABLED */
-
-#if POSIX_SPAWN_FILTERING_ENABLED
-struct _posix_spawn_args_desc;
-extern bool (*posix_spawn_with_filter)(pid_t *pid, const char *fname, char * const *argp,
- char * const *envp, struct _posix_spawn_args_desc *adp, int *ret);
-extern bool _posix_spawn_with_filter(pid_t *pid, const char *fname, char * const *argp,
- char * const *envp, struct _posix_spawn_args_desc *adp, int *ret);
-extern int (*execve_with_filter)(char *fname, char **argp, char **envp);
-extern int _execve_with_filter(char *fname, char **argp, char **envp);
-#endif /* POSIX_SPAWN_FILTERING_ENABLED */
-
-#if TARGET_OS_OSX
-__attribute__((visibility("default")))
-extern bool _os_xbs_chrooted;
-bool _os_xbs_chrooted;
-#endif /* TARGET_OS_OSX */
-
-/* dlsym() funcptr is for legacy support in exc_catcher */
-void* (*LIBKERNEL_FUNCTION_PTRAUTH(_dlsym))(void*, const char*) __attribute__((visibility("hidden")));
-
-__attribute__((visibility("hidden")))
-_libkernel_functions_t _libkernel_functions;
-
-
-#if defined(__arm64__)
-__attribute__ ((visibility("hidden")))
-void *COMMPAGE_PFZ_BASE_PTR commpage_pfz_base = 0;
-
-__attribute__ ((visibility("hidden")))
-static void
-__pfz_setup(const char *apple[])
-{
- if (apple == NULL) {
- return;
- }
-
- const char *p = _simple_getenv(apple, "pfz");
-
- // Parse hex value
-
- if (p == NULL || p[0] != '0' || p[1] != 'x') {
- return;
- }
-
- uintptr_t base = 0;
- for (p += 2 /* overread "0x" */; *p != 0; p++) {
- base <<= 4;
-
- if ('0' <= *p && *p <= '9') {
- base += *p - '0';
- } else if ('a' <= *p && *p <= 'f') {
- base += *p - 'a' + 10;
- } else if ('A' <= *p && *p <= 'F') {
- base += *p - 'A' + 10;
- } else {
- // Bad.
- return;
- }
- }
-
- if (base != 0) {
- commpage_pfz_base = base;
-
- #if defined(__LP64__)
- uintptr_t pfz_ptr = (uintptr_t)commpage_pfz_base;
- pfz_ptr += _COMM_PAGE_TEXT_ATOMIC_TPIDR_EL0;
-
- extern void (*update_tpidr)(uint64_t);
- update_tpidr = SIGN_PFZ_FUNCTION_PTR((void*)pfz_ptr);
-#endif /* defined(__LP64__) */
- }
-}
-#endif /* defined(__arm64__) */
-
-void
-__libkernel_init(_libkernel_functions_t fns,
- const char *envp[] __attribute__((unused)),
- const char *apple[] __attribute__((unused)),
- const struct ProgramVars *vars __attribute__((unused)))
-{
- _libkernel_functions = fns;
- if (fns->dlsym) {
- _dlsym = fns->dlsym;
- }
- mach_init();
-#if TARGET_OS_OSX
-
-
-#if defined(__i386__) || defined(__x86_64__)
- if (vm_kernel_page_shift != 12 &&
- _simple_getenv_check(envp, "VM_KERNEL_PAGE_SIZE_4K", "1")) {
- vm_kernel_page_shift = 12;
- vm_kernel_page_size = 1 << vm_kernel_page_shift;
- vm_kernel_page_mask = vm_kernel_page_size - 1;
- }
-#endif /* defined(__i386__) || defined(__x86_64__) */
-
-#endif /* TARGET_OS_OSX */
-
-#if defined(__arm64__)
- __pfz_setup(apple);
-#endif /* defined(__arm64__) */
-}
-
-void
-__libkernel_init_late(_libkernel_late_init_config_t config)
-{
- if (config->version >= 1) {
-#if SYSTEM_VERSION_COMPAT_ENABLED
-#if SYSTEM_VERSION_COMPAT_HAS_MODE_MACOSX
- if (config->enable_system_version_compat) {
- /* enable the version compatibility shim for this process (macOS only) */
-
- /* first hook up the shims we reference from open{at}() */
- system_version_compat_check_path_suffix = _system_version_compat_check_path_suffix;
- system_version_compat_open_shim = _system_version_compat_open_shim;
-
- system_version_compat_mode = SYSTEM_VERSION_COMPAT_MODE_MACOSX;
-
-#if SYSTEM_VERSION_COMPAT_NEEDS_SYSCTL
- /*
- * tell the kernel the shim is enabled for this process so it can shim any
- * necessary sysctls
- */
- int enable = 1;
- __sysctlbyname("kern.system_version_compat", strlen("kern.system_version_compat"),
- NULL, NULL, &enable, sizeof(enable));
-#endif /* SYSTEM_VERSION_COMPAT_NEEDS_SYSCTL */
- }
-#endif /* SYSTEM_VERSION_COMPAT_HAS_MODE_MACOSX */
-#if SYSTEM_VERSION_COMPAT_HAS_MODE_IOS
- if (!config->enable_system_version_compat &&
- (config->version >= 2) && config->enable_ios_version_compat) {
- /* enable the iOS ProductVersion compatibility shim for this process */
-
- /* first hook up the shims we reference from open{at}() */
- system_version_compat_check_path_suffix = _system_version_compat_check_path_suffix;
- system_version_compat_open_shim = _system_version_compat_open_shim;
-
- system_version_compat_mode = SYSTEM_VERSION_COMPAT_MODE_IOS;
-
- /*
- * We don't currently shim any sysctls for iOS apps running on macOS so we
- * don't need to inform the kernel that this app has the SystemVersion shim enabled.
- */
- }
-#endif /* SYSTEM_VERSION_COMPAT_HAS_MODE_IOS */
-#endif /* SYSTEM_VERSION_COMPAT_ENABLED */
-
-#if POSIX_SPAWN_FILTERING_ENABLED
- if ((config->version >= 3) && config->enable_posix_spawn_filtering) {
- posix_spawn_with_filter = _posix_spawn_with_filter;
- execve_with_filter = _execve_with_filter;
- }
-#endif /* POSIX_SPAWN_FILTERING_ENABLED */
- }
-}
-
-void
-__libkernel_init_after_boot_tasks(
- _libkernel_init_after_boot_tasks_config_t config)
-{
- if (config->version >= 1) {
-#if POSIX_SPAWN_FILTERING_ENABLED
- if (config->enable_posix_spawn_filtering) {
- posix_spawn_with_filter = _posix_spawn_with_filter;
- execve_with_filter = _execve_with_filter;
- }
-#endif /* POSIX_SPAWN_FILTERING_ENABLED */
- }
-}