[37560] | 1 | /* $Id: dbgkrnlinfo-r0drv-darwin.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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[40856] | 3 | * IPRT - Kernel Debug Information, R0 Driver, Darwin.
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[37560] | 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2011-2023 Oracle and/or its affiliates.
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[37560] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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[37560] | 11 | *
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[96407] | 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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[37560] | 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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[96407] | 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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[37560] | 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[37560] | 35 | */
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| 36 |
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| 37 |
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[57358] | 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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[37560] | 41 | #ifdef IN_RING0
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| 42 | # include "the-darwin-kernel.h"
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[37565] | 43 | # include <sys/kauth.h>
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| 44 | RT_C_DECLS_BEGIN /* Buggy 10.4 headers, fixed in 10.5. */
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[85341] | 45 | # if MAC_OS_X_VERSION_MIN_REQUIRED < 101500
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| 46 | # include <sys/kpi_mbuf.h>
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| 47 | # include <net/kpi_interfacefilter.h>
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| 48 | # include <sys/kpi_socket.h>
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| 49 | # endif
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[37575] | 50 | # include <sys/kpi_socketfilter.h>
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[37565] | 51 | RT_C_DECLS_END
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[37575] | 52 | # include <sys/buf.h>
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| 53 | # include <sys/vm.h>
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| 54 | # include <sys/vnode_if.h>
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| 55 | /*# include <sys/sysctl.h>*/
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| 56 | # include <sys/systm.h>
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| 57 | # include <vfs/vfs_support.h>
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| 58 | /*# include <miscfs/specfs/specdev.h>*/
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[58598] | 59 | #else
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| 60 | # include <stdio.h> /* for printf */
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[37560] | 61 | #endif
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| 62 |
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[69662] | 63 | #if !defined(IN_RING0) && !defined(DOXYGEN_RUNNING) /* A linking tweak for the testcase: */
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[69643] | 64 | # include <iprt/cdefs.h>
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| 65 | # undef RTR0DECL
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| 66 | # define RTR0DECL(type) DECLHIDDEN(type) RTCALL
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| 67 | #endif
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| 68 |
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[37573] | 69 | #include "internal/iprt.h"
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[40856] | 70 | #include <iprt/dbg.h>
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[37573] | 71 |
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[37560] | 72 | #include <iprt/asm.h>
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| 73 | #include <iprt/assert.h>
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| 74 | #include <iprt/err.h>
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| 75 | #include <iprt/assert.h>
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| 76 | #include <iprt/file.h>
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[37561] | 77 | #include <iprt/log.h>
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[37560] | 78 | #include <iprt/mem.h>
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| 79 | #include <iprt/string.h>
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[48905] | 80 | #include <iprt/formats/mach-o.h>
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[40856] | 81 | #include "internal/magics.h"
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[37560] | 82 |
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| 83 | /** @def MY_CPU_TYPE
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| 84 | * The CPU type targeted by the compiler. */
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| 85 | /** @def MY_CPU_TYPE
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| 86 | * The "ALL" CPU subtype targeted by the compiler. */
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| 87 | /** @def MY_MACHO_HEADER
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| 88 | * The Mach-O header targeted by the compiler. */
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| 89 | /** @def MY_MACHO_MAGIC
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| 90 | * The Mach-O header magic we're targeting. */
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| 91 | /** @def MY_SEGMENT_COMMAND
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| 92 | * The segment command targeted by the compiler. */
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| 93 | /** @def MY_SECTION
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| 94 | * The section struture targeted by the compiler. */
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| 95 | /** @def MY_NLIST
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| 96 | * The symbol table entry targeted by the compiler. */
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| 97 | #ifdef RT_ARCH_X86
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| 98 | # define MY_CPU_TYPE CPU_TYPE_I386
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| 99 | # define MY_CPU_SUBTYPE_ALL CPU_SUBTYPE_I386_ALL
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| 100 | # define MY_MACHO_HEADER mach_header_32_t
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| 101 | # define MY_MACHO_MAGIC IMAGE_MACHO32_SIGNATURE
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| 102 | # define MY_SEGMENT_COMMAND segment_command_32_t
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| 103 | # define MY_SECTION section_32_t
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| 104 | # define MY_NLIST macho_nlist_32_t
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| 105 |
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| 106 | #elif defined(RT_ARCH_AMD64)
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| 107 | # define MY_CPU_TYPE CPU_TYPE_X86_64
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| 108 | # define MY_CPU_SUBTYPE_ALL CPU_SUBTYPE_X86_64_ALL
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| 109 | # define MY_MACHO_HEADER mach_header_64_t
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| 110 | # define MY_MACHO_MAGIC IMAGE_MACHO64_SIGNATURE
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| 111 | # define MY_SEGMENT_COMMAND segment_command_64_t
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| 112 | # define MY_SECTION section_64_t
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| 113 | # define MY_NLIST macho_nlist_64_t
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| 114 |
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[87146] | 115 | #elif defined(RT_ARCH_ARM64)
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| 116 | # define MY_CPU_TYPE CPU_TYPE_ARM64
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| 117 | # define MY_CPU_SUBTYPE_ALL CPU_SUBTYPE_ARM64_ALL
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| 118 | # define MY_MACHO_HEADER mach_header_64_t
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| 119 | # define MY_MACHO_MAGIC IMAGE_MACHO64_SIGNATURE
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| 120 | # define MY_SEGMENT_COMMAND segment_command_64_t
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| 121 | # define MY_SECTION section_64_t
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| 122 | # define MY_NLIST macho_nlist_64_t
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| 123 |
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[37560] | 124 | #else
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| 125 | # error "Port me!"
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| 126 | #endif
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| 127 |
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| 128 | /** @name Return macros for make it simpler to track down too paranoid code.
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| 129 | * @{
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| 130 | */
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| 131 | #ifdef DEBUG
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| 132 | # define RETURN_VERR_BAD_EXE_FORMAT \
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| 133 | do { Assert(!g_fBreakpointOnError); return VERR_BAD_EXE_FORMAT; } while (0)
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| 134 | # define RETURN_VERR_LDR_UNEXPECTED \
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| 135 | do { Assert(!g_fBreakpointOnError); return VERR_LDR_UNEXPECTED; } while (0)
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| 136 | # define RETURN_VERR_LDR_ARCH_MISMATCH \
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| 137 | do { Assert(!g_fBreakpointOnError); return VERR_LDR_ARCH_MISMATCH; } while (0)
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| 138 | #else
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| 139 | # define RETURN_VERR_BAD_EXE_FORMAT do { return VERR_BAD_EXE_FORMAT; } while (0)
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| 140 | # define RETURN_VERR_LDR_UNEXPECTED do { return VERR_LDR_UNEXPECTED; } while (0)
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| 141 | # define RETURN_VERR_LDR_ARCH_MISMATCH do { return VERR_LDR_ARCH_MISMATCH; } while (0)
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| 142 | #endif
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[82806] | 143 | #if defined(DEBUG_bird) && !defined(IN_RING3)
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| 144 | # define LOG_MISMATCH(...) kprintf(__VA_ARGS__)
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| 145 | # define LOG_NOT_PRESENT(...) kprintf(__VA_ARGS__)
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| 146 | # define LOG_BAD_SYM(...) kprintf(__VA_ARGS__)
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| 147 | # define LOG_SUCCESS(...) kprintf(__VA_ARGS__)
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| 148 | #else
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| 149 | # define LOG_MISMATCH(...) Log((__VA_ARGS__))
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| 150 | # define LOG_NOT_PRESENT(...) Log((__VA_ARGS__))
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| 151 | # define LOG_BAD_SYM(...) printf(__VA_ARGS__)
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| 152 | # define LOG_SUCCESS(...) printf(__VA_ARGS__)
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| 153 | #endif
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[37560] | 154 | /** @} */
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| 155 |
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| 156 | #define VERR_LDR_UNEXPECTED (-641)
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| 157 |
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[69643] | 158 | #ifndef RT_OS_DARWIN
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| 159 | # define MAC_OS_X_VERSION_MIN_REQUIRED 1050
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| 160 | #endif
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[37560] | 161 |
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[69643] | 162 |
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[57358] | 163 | /*********************************************************************************************************************************
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| 164 | * Structures and Typedefs *
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| 165 | *********************************************************************************************************************************/
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[37560] | 166 | /**
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| 167 | * Our internal representation of the mach_kernel after loading it's symbols
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| 168 | * and successfully resolving their addresses.
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| 169 | */
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[40856] | 170 | typedef struct RTDBGKRNLINFOINT
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[37560] | 171 | {
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[40856] | 172 | /** Magic value (RTDBGKRNLINFO_MAGIC). */
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| 173 | uint32_t u32Magic;
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| 174 | /** Reference counter. */
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| 175 | uint32_t volatile cRefs;
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| 176 |
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[82806] | 177 | /** Set if this is an in-memory rather than on-disk instance. */
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| 178 | bool fIsInMem;
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| 179 | bool afAlignment[7];
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| 180 |
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[37560] | 181 | /** @name Result.
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| 182 | * @{ */
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| 183 | /** Pointer to the string table. */
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| 184 | char *pachStrTab;
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| 185 | /** The size of the string table. */
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| 186 | uint32_t cbStrTab;
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| 187 | /** The file offset of the string table. */
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| 188 | uint32_t offStrTab;
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[82806] | 189 | /** The link address of the string table. */
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| 190 | uintptr_t uStrTabLinkAddr;
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[37560] | 191 | /** Pointer to the symbol table. */
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| 192 | MY_NLIST *paSyms;
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| 193 | /** The size of the symbol table. */
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| 194 | uint32_t cSyms;
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| 195 | /** The file offset of the symbol table. */
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| 196 | uint32_t offSyms;
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[82806] | 197 | /** The link address of the symbol table. */
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| 198 | uintptr_t uSymTabLinkAddr;
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| 199 | /** The link address of the text segment. */
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| 200 | uintptr_t uTextSegLinkAddr;
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| 201 | /** Size of the text segment. */
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| 202 | uintptr_t cbTextSeg;
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[86290] | 203 | /** Offset between link address and actual load address of the text segment. */
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[41052] | 204 | uintptr_t offLoad;
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[82806] | 205 | /** The minimum OS version (A.B.C; A is 16 bits, B & C each 8 bits). */
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| 206 | uint32_t uMinOsVer;
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| 207 | /** The SDK version (A.B.C; A is 16 bits, B & C each 8 bits). */
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| 208 | uint32_t uSdkVer;
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| 209 | /** The source version (A.B.C.D.E; A is 24 bits, the rest 10 each). */
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| 210 | uint64_t uSrcVer;
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[37560] | 211 | /** @} */
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| 212 |
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| 213 | /** @name Used during loading.
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| 214 | * @{ */
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| 215 | /** The file handle. */
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| 216 | RTFILE hFile;
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| 217 | /** The architecture image offset (fat_arch_t::offset). */
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| 218 | uint64_t offArch;
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| 219 | /** The architecture image size (fat_arch_t::size). */
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| 220 | uint32_t cbArch;
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| 221 | /** The number of load commands (mach_header_XX_t::ncmds). */
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| 222 | uint32_t cLoadCmds;
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| 223 | /** The size of the load commands. */
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| 224 | uint32_t cbLoadCmds;
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| 225 | /** The load commands. */
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| 226 | load_command_t *pLoadCmds;
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[82806] | 227 | /** The number of segments. */
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| 228 | uint32_t cSegments;
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| 229 | /** The number of sections. */
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| 230 | uint32_t cSections;
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[37560] | 231 | /** Section pointer table (points into the load commands). */
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[82806] | 232 | MY_SEGMENT_COMMAND const *apSegments[MACHO_MAX_SECT / 2];
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[86290] | 233 | /** Load displacement table for each segment. */
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| 234 | uintptr_t aoffLoadSegments[MACHO_MAX_SECT / 2];
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[82806] | 235 | /** Section pointer table (points into the load commands). */
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[37560] | 236 | MY_SECTION const *apSections[MACHO_MAX_SECT];
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[86290] | 237 | /** Mapping table to quickly get to a segment from MY_NLIST::n_sect. */
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| 238 | uint8_t auSections2Segment[MACHO_MAX_SECT];
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[37560] | 239 | /** @} */
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| 240 |
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| 241 | /** Buffer space. */
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| 242 | char abBuf[_4K];
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[40856] | 243 | } RTDBGKRNLINFOINT;
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[37560] | 244 |
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| 245 |
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[57358] | 246 | /*********************************************************************************************************************************
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| 247 | * Structures and Typedefs *
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| 248 | *********************************************************************************************************************************/
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[37560] | 249 | #ifdef DEBUG
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[37573] | 250 | static bool g_fBreakpointOnError = false;
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[37560] | 251 | #endif
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| 252 |
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| 253 |
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[37569] | 254 | /**
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[37560] | 255 | * Close and free up resources we no longer needs.
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| 256 | *
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[37573] | 257 | * @param pThis The internal scratch data.
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[37560] | 258 | */
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[40856] | 259 | static void rtR0DbgKrnlDarwinLoadDone(RTDBGKRNLINFOINT *pThis)
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[37560] | 260 | {
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[82806] | 261 | if (!pThis->fIsInMem)
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| 262 | RTFileClose(pThis->hFile);
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[37573] | 263 | pThis->hFile = NIL_RTFILE;
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[37560] | 264 |
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[82806] | 265 | if (!pThis->fIsInMem)
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| 266 | RTMemFree(pThis->pLoadCmds);
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[37573] | 267 | pThis->pLoadCmds = NULL;
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[82806] | 268 | RT_ZERO(pThis->apSections);
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| 269 | RT_ZERO(pThis->apSegments);
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[37560] | 270 | }
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| 271 |
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| 272 |
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| 273 | /**
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[86290] | 274 | * Looks up a kernel symbol record.
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[37560] | 275 | *
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[86290] | 276 | * @returns Pointer to the symbol record or NULL if not found.
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[37573] | 277 | * @param pThis The internal scratch data.
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[37560] | 278 | * @param pszSymbol The symbol to resolve. Automatically prefixed
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| 279 | * with an underscore.
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| 280 | */
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[86290] | 281 | static MY_NLIST const *rtR0DbgKrnlDarwinLookupSym(RTDBGKRNLINFOINT *pThis, const char *pszSymbol)
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[37560] | 282 | {
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[37573] | 283 | uint32_t const cSyms = pThis->cSyms;
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| 284 | MY_NLIST const *pSym = pThis->paSyms;
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[37560] | 285 |
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| 286 | #if 1
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| 287 | /* linear search. */
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| 288 | for (uint32_t iSym = 0; iSym < cSyms; iSym++, pSym++)
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| 289 | {
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| 290 | if (pSym->n_type & MACHO_N_STAB)
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| 291 | continue;
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[37562] | 292 |
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[37573] | 293 | const char *pszTabName= &pThis->pachStrTab[(uint32_t)pSym->n_un.n_strx];
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[37562] | 294 | if ( *pszTabName == '_'
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| 295 | && strcmp(pszTabName + 1, pszSymbol) == 0)
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[86290] | 296 | return pSym;
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[37560] | 297 | }
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| 298 | #else
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| 299 | /** @todo binary search. */
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[86290] | 300 | #endif
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[37560] | 301 |
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[86290] | 302 | return NULL;
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| 303 | }
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| 304 |
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| 305 |
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| 306 | /**
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| 307 | * Looks up a kernel symbol.
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| 308 | *
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| 309 | * @returns The symbol address on success, 0 on failure.
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| 310 | * @param pThis The internal scratch data.
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| 311 | * @param pszSymbol The symbol to resolve. Automatically prefixed
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| 312 | * with an underscore.
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| 313 | */
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| 314 | static uintptr_t rtR0DbgKrnlDarwinLookup(RTDBGKRNLINFOINT *pThis, const char *pszSymbol)
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| 315 | {
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| 316 | MY_NLIST const *pSym = rtR0DbgKrnlDarwinLookupSym(pThis, pszSymbol);
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| 317 | if (pSym)
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| 318 | {
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| 319 | uint8_t idxSeg = pThis->auSections2Segment[pSym->n_sect];
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| 320 | if (pThis->aoffLoadSegments[idxSeg] != UINTPTR_MAX)
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| 321 | return pSym->n_value + pThis->aoffLoadSegments[idxSeg];
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| 322 | }
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| 323 |
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[37560] | 324 | return 0;
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| 325 | }
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| 326 |
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| 327 |
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[37566] | 328 | /* Rainy day: Find the right headers for these symbols ... if there are any. */
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[37565] | 329 | extern "C" void ev_try_lock(void);
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| 330 | extern "C" void OSMalloc(void);
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| 331 | extern "C" void OSlibkernInit(void);
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| 332 | extern "C" void kdp_set_interface(void);
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[37562] | 333 |
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[37566] | 334 |
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[86305] | 335 | /*
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| 336 | * Determine the load displacement (10.8 kernels are PIE).
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| 337 | *
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| 338 | * Starting with 11.0 (BigSur) all segments can have different load displacements
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| 339 | * so determine the displacements from known symbols.
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| 340 | *
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| 341 | * @returns IPRT status code
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| 342 | * @param pThis The internal scratch data.
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| 343 | */
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| 344 | static int rtR0DbgKrnlDarwinInitLoadDisplacements(RTDBGKRNLINFOINT *pThis)
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| 345 | {
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| 346 | static struct
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| 347 | {
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| 348 | const char *pszName;
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| 349 | uintptr_t uAddr;
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| 350 | } const s_aStandardSyms[] =
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| 351 | {
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| 352 | #ifdef IN_RING0
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| 353 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, (uintptr_t)&a_Sym }
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| 354 | #else
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| 355 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, 0 }
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| 356 | #endif
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| 357 | KNOWN_ENTRY(vm_map_unwire), /* __TEXT */
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| 358 | KNOWN_ENTRY(kernel_map), /* __HIB */
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[86578] | 359 | KNOWN_ENTRY(gIOServicePlane), /* __DATA (__HIB on ElCapitan) */
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| 360 | KNOWN_ENTRY(page_mask) /* __DATA on ElCapitan */
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[86305] | 361 | #undef KNOWN_ENTRY
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| 362 | };
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| 363 |
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| 364 | for (unsigned i = 0; i < RT_ELEMENTS(s_aStandardSyms); i++)
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| 365 | {
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| 366 | MY_NLIST const *pSym = rtR0DbgKrnlDarwinLookupSym(pThis, s_aStandardSyms[i].pszName);
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| 367 | if (RT_UNLIKELY(!pSym))
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| 368 | return VERR_INTERNAL_ERROR_2;
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| 369 |
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| 370 | uint8_t idxSeg = pThis->auSections2Segment[pSym->n_sect];
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| 371 | #ifdef IN_RING0
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| 372 | /*
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| 373 | * The segment should either not have the load displacement determined or it should
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| 374 | * be the same for all symbols in the same segment.
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| 375 | */
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| 376 | if ( pThis->aoffLoadSegments[idxSeg] != UINTPTR_MAX
|
---|
| 377 | && pThis->aoffLoadSegments[idxSeg] != s_aStandardSyms[i].uAddr - pSym->n_value)
|
---|
| 378 | return VERR_INTERNAL_ERROR_2;
|
---|
| 379 |
|
---|
| 380 | pThis->aoffLoadSegments[idxSeg] = s_aStandardSyms[i].uAddr - pSym->n_value;
|
---|
| 381 | #elif defined(IN_RING3)
|
---|
| 382 | pThis->aoffLoadSegments[idxSeg] = 0;
|
---|
| 383 | #else
|
---|
| 384 | # error "Either IN_RING0 or IN_RING3 msut be defined"
|
---|
| 385 | #endif
|
---|
| 386 | }
|
---|
| 387 |
|
---|
| 388 | return VINF_SUCCESS;
|
---|
| 389 | }
|
---|
| 390 |
|
---|
| 391 |
|
---|
[37566] | 392 | /**
|
---|
[37569] | 393 | * Check the symbol table against symbols we known symbols.
|
---|
| 394 | *
|
---|
| 395 | * This is done to detect whether the on disk image and the in
|
---|
| 396 | * memory images matches. Mismatches could stem from user
|
---|
[37566] | 397 | * replacing the default kernel image on disk.
|
---|
[37569] | 398 | *
|
---|
[37566] | 399 | * @returns IPRT status code.
|
---|
[37573] | 400 | * @param pThis The internal scratch data.
|
---|
[82806] | 401 | * @param pszKernelFile The name of the kernel file.
|
---|
[37566] | 402 | */
|
---|
[82806] | 403 | static int rtR0DbgKrnlDarwinCheckStandardSymbols(RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
[37560] | 404 | {
|
---|
| 405 | static struct
|
---|
| 406 | {
|
---|
| 407 | const char *pszName;
|
---|
| 408 | uintptr_t uAddr;
|
---|
| 409 | } const s_aStandardCandles[] =
|
---|
| 410 | {
|
---|
[37562] | 411 | #ifdef IN_RING0
|
---|
[37560] | 412 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, (uintptr_t)&a_Sym }
|
---|
| 413 | #else
|
---|
| 414 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, 0 }
|
---|
| 415 | #endif
|
---|
[37565] | 416 | /* IOKit: */
|
---|
[37562] | 417 | KNOWN_ENTRY(IOMalloc),
|
---|
[37560] | 418 | KNOWN_ENTRY(IOFree),
|
---|
[37565] | 419 | KNOWN_ENTRY(IOSleep),
|
---|
| 420 | KNOWN_ENTRY(IORWLockAlloc),
|
---|
| 421 | KNOWN_ENTRY(IORecursiveLockLock),
|
---|
| 422 | KNOWN_ENTRY(IOSimpleLockAlloc),
|
---|
| 423 | KNOWN_ENTRY(PE_cpu_halt),
|
---|
| 424 | KNOWN_ENTRY(gIOKitDebug),
|
---|
| 425 | KNOWN_ENTRY(gIOServicePlane),
|
---|
| 426 | KNOWN_ENTRY(ev_try_lock),
|
---|
| 427 |
|
---|
| 428 | /* Libkern: */
|
---|
| 429 | KNOWN_ENTRY(OSAddAtomic),
|
---|
| 430 | KNOWN_ENTRY(OSBitAndAtomic),
|
---|
| 431 | KNOWN_ENTRY(OSBitOrAtomic),
|
---|
| 432 | KNOWN_ENTRY(OSBitXorAtomic),
|
---|
| 433 | KNOWN_ENTRY(OSCompareAndSwap),
|
---|
| 434 | KNOWN_ENTRY(OSMalloc),
|
---|
| 435 | KNOWN_ENTRY(OSlibkernInit),
|
---|
| 436 | KNOWN_ENTRY(bcmp),
|
---|
| 437 | KNOWN_ENTRY(copyout),
|
---|
| 438 | KNOWN_ENTRY(copyin),
|
---|
| 439 | KNOWN_ENTRY(kprintf),
|
---|
| 440 | KNOWN_ENTRY(printf),
|
---|
| 441 | KNOWN_ENTRY(lck_grp_alloc_init),
|
---|
| 442 | KNOWN_ENTRY(lck_mtx_alloc_init),
|
---|
| 443 | KNOWN_ENTRY(lck_rw_alloc_init),
|
---|
| 444 | KNOWN_ENTRY(lck_spin_alloc_init),
|
---|
| 445 | KNOWN_ENTRY(osrelease),
|
---|
| 446 | KNOWN_ENTRY(ostype),
|
---|
| 447 | KNOWN_ENTRY(panic),
|
---|
| 448 | KNOWN_ENTRY(strprefix),
|
---|
[56699] | 449 | //KNOWN_ENTRY(sysctlbyname), - we get kernel_sysctlbyname from the 10.10+ kernels.
|
---|
[37565] | 450 | KNOWN_ENTRY(vsscanf),
|
---|
| 451 | KNOWN_ENTRY(page_mask),
|
---|
| 452 |
|
---|
| 453 | /* Mach: */
|
---|
| 454 | KNOWN_ENTRY(absolutetime_to_nanoseconds),
|
---|
| 455 | KNOWN_ENTRY(assert_wait),
|
---|
| 456 | KNOWN_ENTRY(clock_delay_until),
|
---|
| 457 | KNOWN_ENTRY(clock_get_uptime),
|
---|
| 458 | KNOWN_ENTRY(current_task),
|
---|
| 459 | KNOWN_ENTRY(current_thread),
|
---|
| 460 | KNOWN_ENTRY(kernel_task),
|
---|
| 461 | KNOWN_ENTRY(lck_mtx_sleep),
|
---|
| 462 | KNOWN_ENTRY(lck_rw_sleep),
|
---|
| 463 | KNOWN_ENTRY(lck_spin_sleep),
|
---|
| 464 | KNOWN_ENTRY(mach_absolute_time),
|
---|
| 465 | KNOWN_ENTRY(semaphore_create),
|
---|
| 466 | KNOWN_ENTRY(task_reference),
|
---|
| 467 | KNOWN_ENTRY(thread_block),
|
---|
| 468 | KNOWN_ENTRY(thread_reference),
|
---|
| 469 | KNOWN_ENTRY(thread_terminate),
|
---|
| 470 | KNOWN_ENTRY(thread_wakeup_prim),
|
---|
| 471 |
|
---|
| 472 | /* BSDKernel: */
|
---|
[37575] | 473 | KNOWN_ENTRY(buf_size),
|
---|
[37565] | 474 | KNOWN_ENTRY(copystr),
|
---|
[37575] | 475 | KNOWN_ENTRY(current_proc),
|
---|
[37565] | 476 | KNOWN_ENTRY(kauth_getuid),
|
---|
| 477 | #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
|
---|
| 478 | KNOWN_ENTRY(kauth_cred_unref),
|
---|
[37569] | 479 | #else
|
---|
[37565] | 480 | KNOWN_ENTRY(kauth_cred_rele),
|
---|
| 481 | #endif
|
---|
| 482 | KNOWN_ENTRY(msleep),
|
---|
| 483 | KNOWN_ENTRY(nanotime),
|
---|
[37575] | 484 | KNOWN_ENTRY(nop_close),
|
---|
[37565] | 485 | KNOWN_ENTRY(proc_pid),
|
---|
[85340] | 486 | #if MAC_OS_X_VERSION_MIN_REQUIRED < 101500
|
---|
[85341] | 487 | KNOWN_ENTRY(mbuf_data),
|
---|
| 488 | KNOWN_ENTRY(ifnet_hdrlen),
|
---|
| 489 | KNOWN_ENTRY(ifnet_set_promiscuous),
|
---|
[37575] | 490 | KNOWN_ENTRY(sock_accept),
|
---|
| 491 | KNOWN_ENTRY(sockopt_name),
|
---|
[85340] | 492 | #endif
|
---|
[37565] | 493 | //KNOWN_ENTRY(spec_write),
|
---|
[37575] | 494 | KNOWN_ENTRY(suword),
|
---|
[37565] | 495 | //KNOWN_ENTRY(sysctl_int),
|
---|
| 496 | KNOWN_ENTRY(uio_rw),
|
---|
[37575] | 497 | KNOWN_ENTRY(vfs_flags),
|
---|
| 498 | KNOWN_ENTRY(vfs_name),
|
---|
| 499 | KNOWN_ENTRY(vfs_statfs),
|
---|
[37578] | 500 | KNOWN_ENTRY(VNOP_READ),
|
---|
| 501 | KNOWN_ENTRY(uio_create),
|
---|
| 502 | KNOWN_ENTRY(uio_addiov),
|
---|
| 503 | KNOWN_ENTRY(uio_free),
|
---|
[37575] | 504 | KNOWN_ENTRY(vnode_get),
|
---|
| 505 | KNOWN_ENTRY(vnode_open),
|
---|
| 506 | KNOWN_ENTRY(vnode_ref),
|
---|
| 507 | KNOWN_ENTRY(vnode_rele),
|
---|
| 508 | KNOWN_ENTRY(vnop_close_desc),
|
---|
[37565] | 509 | KNOWN_ENTRY(wakeup),
|
---|
| 510 | KNOWN_ENTRY(wakeup_one),
|
---|
| 511 |
|
---|
| 512 | /* Unsupported: */
|
---|
| 513 | KNOWN_ENTRY(kdp_set_interface),
|
---|
| 514 | KNOWN_ENTRY(pmap_find_phys),
|
---|
| 515 | KNOWN_ENTRY(vm_map),
|
---|
| 516 | KNOWN_ENTRY(vm_protect),
|
---|
| 517 | KNOWN_ENTRY(vm_region),
|
---|
[56699] | 518 | KNOWN_ENTRY(vm_map_unwire), /* vm_map_wire has an alternative symbol, vm_map_wire_external, in 10.11 */
|
---|
[37565] | 519 | KNOWN_ENTRY(PE_kputc),
|
---|
[41052] | 520 | KNOWN_ENTRY(kernel_map),
|
---|
| 521 | KNOWN_ENTRY(kernel_pmap),
|
---|
[86305] | 522 | #undef KNOWN_ENTRY
|
---|
[37560] | 523 | };
|
---|
| 524 |
|
---|
| 525 | for (unsigned i = 0; i < RT_ELEMENTS(s_aStandardCandles); i++)
|
---|
| 526 | {
|
---|
[40856] | 527 | uintptr_t uAddr = rtR0DbgKrnlDarwinLookup(pThis, s_aStandardCandles[i].pszName);
|
---|
[37560] | 528 | #ifdef IN_RING0
|
---|
| 529 | if (uAddr != s_aStandardCandles[i].uAddr)
|
---|
| 530 | #else
|
---|
| 531 | if (uAddr == 0)
|
---|
| 532 | #endif
|
---|
| 533 | {
|
---|
[82806] | 534 | #if defined(IN_RING0) && defined(DEBUG_bird)
|
---|
| 535 | kprintf("RTR0DbgKrnlInfoOpen: error: %s (%p != %p) in %s\n",
|
---|
| 536 | s_aStandardCandles[i].pszName, (void *)uAddr, (void *)s_aStandardCandles[i].uAddr, pszKernelFile);
|
---|
| 537 | #endif
|
---|
| 538 | printf("RTR0DbgKrnlInfoOpen: error: %s (%p != %p) in %s\n",
|
---|
| 539 | s_aStandardCandles[i].pszName, (void *)uAddr, (void *)s_aStandardCandles[i].uAddr, pszKernelFile);
|
---|
[37560] | 540 | return VERR_INTERNAL_ERROR_2;
|
---|
| 541 | }
|
---|
| 542 | }
|
---|
| 543 | return VINF_SUCCESS;
|
---|
| 544 | }
|
---|
| 545 |
|
---|
| 546 |
|
---|
| 547 | /**
|
---|
| 548 | * Loads and validates the symbol and string tables.
|
---|
| 549 | *
|
---|
| 550 | * @returns IPRT status code.
|
---|
[37573] | 551 | * @param pThis The internal scratch data.
|
---|
[69648] | 552 | * @param pszKernelFile The name of the kernel file.
|
---|
[37560] | 553 | */
|
---|
[82806] | 554 | static int rtR0DbgKrnlDarwinParseSymTab(RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
[37560] | 555 | {
|
---|
| 556 | /*
|
---|
| 557 | * The first string table symbol must be a zero length name.
|
---|
| 558 | */
|
---|
[37573] | 559 | if (pThis->pachStrTab[0] != '\0')
|
---|
[37560] | 560 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 561 |
|
---|
| 562 | /*
|
---|
| 563 | * Validate the symbol table.
|
---|
| 564 | */
|
---|
| 565 | const char *pszPrev = "";
|
---|
[37573] | 566 | uint32_t const cSyms = pThis->cSyms;
|
---|
| 567 | MY_NLIST const *pSym = pThis->paSyms;
|
---|
[37560] | 568 | for (uint32_t iSym = 0; iSym < cSyms; iSym++, pSym++)
|
---|
| 569 | {
|
---|
[37573] | 570 | if ((uint32_t)pSym->n_un.n_strx >= pThis->cbStrTab)
|
---|
[69648] | 571 | {
|
---|
[82806] | 572 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u has a bad string table index: %#x vs cbStrTab=%#x\n",
|
---|
| 573 | pszKernelFile, iSym, pSym->n_un.n_strx, pThis->cbStrTab);
|
---|
[37560] | 574 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 575 | }
|
---|
[37573] | 576 | const char *pszSym = &pThis->pachStrTab[(uint32_t)pSym->n_un.n_strx];
|
---|
[37560] | 577 | #ifdef IN_RING3
|
---|
[41050] | 578 | RTAssertMsg2("%05i: %02x:%08llx %02x %04x %s\n", iSym, pSym->n_sect, (uint64_t)pSym->n_value, pSym->n_type, pSym->n_desc, pszSym);
|
---|
[37560] | 579 | #endif
|
---|
| 580 |
|
---|
| 581 | if (strcmp(pszSym, pszPrev) < 0)
|
---|
| 582 | RETURN_VERR_BAD_EXE_FORMAT; /* not sorted */
|
---|
| 583 |
|
---|
| 584 | if (!(pSym->n_type & MACHO_N_STAB))
|
---|
| 585 | {
|
---|
| 586 | switch (pSym->n_type & MACHO_N_TYPE)
|
---|
| 587 | {
|
---|
| 588 | case MACHO_N_SECT:
|
---|
| 589 | if (pSym->n_sect == MACHO_NO_SECT)
|
---|
[69648] | 590 | {
|
---|
[82806] | 591 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_sect = MACHO_NO_SECT\n",
|
---|
| 592 | pszKernelFile, iSym, pszSym);
|
---|
[37560] | 593 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 594 | }
|
---|
[37573] | 595 | if (pSym->n_sect > pThis->cSections)
|
---|
[69648] | 596 | {
|
---|
[82806] | 597 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_sect (%u) is higher than cSections (%u)\n",
|
---|
| 598 | pszKernelFile, iSym, pszSym, pSym->n_sect, pThis->cSections);
|
---|
[37560] | 599 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 600 | }
|
---|
[69647] | 601 | if (pSym->n_desc & ~(REFERENCED_DYNAMICALLY | N_WEAK_DEF))
|
---|
[69648] | 602 | {
|
---|
[82806] | 603 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: Unexpected value n_desc=%#x\n",
|
---|
| 604 | pszKernelFile, iSym, pszSym, pSym->n_desc);
|
---|
[37560] | 605 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 606 | }
|
---|
[41050] | 607 | if ( pSym->n_value < pThis->apSections[pSym->n_sect - 1]->addr
|
---|
| 608 | && strcmp(pszSym, "__mh_execute_header")) /* in 10.8 it's no longer absolute (PIE?). */
|
---|
[69648] | 609 | {
|
---|
[82806] | 610 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_value (%#llx) < section addr (%#llx)\n",
|
---|
[83845] | 611 | pszKernelFile, iSym, pszSym, (uint64_t)pSym->n_value,
|
---|
| 612 | (uint64_t)pThis->apSections[pSym->n_sect - 1]->addr);
|
---|
[37560] | 613 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 614 | }
|
---|
[41050] | 615 | if ( pSym->n_value - pThis->apSections[pSym->n_sect - 1]->addr
|
---|
| 616 | > pThis->apSections[pSym->n_sect - 1]->size
|
---|
| 617 | && strcmp(pszSym, "__mh_execute_header")) /* see above. */
|
---|
[69648] | 618 | {
|
---|
[82806] | 619 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_value (%#llx) >= end of section (%#llx + %#llx)\n",
|
---|
[83845] | 620 | pszKernelFile, iSym, pszSym, (uint64_t)pSym->n_value,
|
---|
| 621 | (uint64_t)pThis->apSections[pSym->n_sect - 1]->addr,
|
---|
| 622 | (uint64_t)pThis->apSections[pSym->n_sect - 1]->size);
|
---|
[37560] | 623 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 624 | }
|
---|
[37560] | 625 | break;
|
---|
| 626 |
|
---|
| 627 | case MACHO_N_ABS:
|
---|
[41050] | 628 | if ( pSym->n_sect != MACHO_NO_SECT
|
---|
| 629 | && ( strcmp(pszSym, "__mh_execute_header") /* n_sect=1 in 10.7/amd64 */
|
---|
| 630 | || pSym->n_sect > pThis->cSections) )
|
---|
[69648] | 631 | {
|
---|
[82806] | 632 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Abs symbol #%u '%s' problem: n_sect (%u) is not MACHO_NO_SECT (cSections is %u)\n",
|
---|
| 633 | pszKernelFile, iSym, pszSym, pSym->n_sect, pThis->cSections);
|
---|
[37560] | 634 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 635 | }
|
---|
| 636 | if (pSym->n_desc & ~(REFERENCED_DYNAMICALLY | N_WEAK_DEF))
|
---|
| 637 | {
|
---|
[82806] | 638 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Abs symbol #%u '%s' problem: Unexpected value n_desc=%#x\n",
|
---|
| 639 | pszKernelFile, iSym, pszSym, pSym->n_desc);
|
---|
[37560] | 640 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 641 | }
|
---|
[37560] | 642 | break;
|
---|
| 643 |
|
---|
| 644 | case MACHO_N_UNDF:
|
---|
| 645 | /* No undefined or common symbols in the kernel. */
|
---|
[82806] | 646 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected undefined symbol #%u '%s'\n", pszKernelFile, iSym, pszSym);
|
---|
[37560] | 647 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 648 |
|
---|
| 649 | case MACHO_N_INDR:
|
---|
| 650 | /* No indirect symbols in the kernel. */
|
---|
[82806] | 651 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected indirect symbol #%u '%s'\n", pszKernelFile, iSym, pszSym);
|
---|
[37560] | 652 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 653 |
|
---|
| 654 | case MACHO_N_PBUD:
|
---|
| 655 | /* No prebound symbols in the kernel. */
|
---|
[82806] | 656 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected prebound symbol #%u '%s'\n", pszKernelFile, iSym, pszSym);
|
---|
[37560] | 657 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 658 |
|
---|
| 659 | default:
|
---|
[82806] | 660 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected symbol n_type %#x for symbol #%u '%s'\n",
|
---|
| 661 | pszKernelFile, pSym->n_type, iSym, pszSym);
|
---|
[37560] | 662 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 663 | }
|
---|
| 664 | }
|
---|
| 665 | /* else: Ignore debug symbols. */
|
---|
| 666 | }
|
---|
| 667 |
|
---|
| 668 | return VINF_SUCCESS;
|
---|
| 669 | }
|
---|
| 670 |
|
---|
| 671 |
|
---|
| 672 | /**
|
---|
[82806] | 673 | * Uses the segment table to translate a file offset into a virtual memory
|
---|
| 674 | * address.
|
---|
[37560] | 675 | *
|
---|
[82806] | 676 | * @returns The virtual memory address on success, 0 if not found.
|
---|
| 677 | * @param pThis The instance.
|
---|
| 678 | * @param offFile The file offset to translate.
|
---|
| 679 | */
|
---|
| 680 | static uintptr_t rtR0DbgKrnlDarwinFileOffToVirtAddr(RTDBGKRNLINFOINT *pThis, uint64_t offFile)
|
---|
| 681 | {
|
---|
| 682 | uint32_t iSeg = pThis->cSegments;
|
---|
| 683 | while (iSeg-- > 0)
|
---|
| 684 | {
|
---|
| 685 | uint64_t offSeg = offFile - pThis->apSegments[iSeg]->fileoff;
|
---|
| 686 | if (offSeg < pThis->apSegments[iSeg]->vmsize)
|
---|
| 687 | return pThis->apSegments[iSeg]->vmaddr + (uintptr_t)offSeg;
|
---|
| 688 | }
|
---|
| 689 | return 0;
|
---|
| 690 | }
|
---|
| 691 |
|
---|
| 692 |
|
---|
| 693 | /**
|
---|
| 694 | * Parses and validates the load commands.
|
---|
| 695 | *
|
---|
[37560] | 696 | * @returns IPRT status code.
|
---|
[37573] | 697 | * @param pThis The internal scratch data.
|
---|
[37560] | 698 | */
|
---|
[82806] | 699 | static int rtR0DbgKrnlDarwinParseCommands(RTDBGKRNLINFOINT *pThis)
|
---|
[37560] | 700 | {
|
---|
[82806] | 701 | Assert(pThis->pLoadCmds);
|
---|
[37560] | 702 |
|
---|
[82806] | 703 | /*
|
---|
| 704 | * Reset the state.
|
---|
| 705 | */
|
---|
| 706 | pThis->offStrTab = 0;
|
---|
| 707 | pThis->cbStrTab = 0;
|
---|
| 708 | pThis->offSyms = 0;
|
---|
| 709 | pThis->cSyms = 0;
|
---|
| 710 | pThis->cSections = 0;
|
---|
| 711 | pThis->uTextSegLinkAddr = 0;
|
---|
| 712 | pThis->cbTextSeg = 0;
|
---|
| 713 | pThis->uMinOsVer = 0;
|
---|
| 714 | pThis->uSdkVer = 0;
|
---|
| 715 | pThis->uSrcVer = 0;
|
---|
[37560] | 716 |
|
---|
| 717 | /*
|
---|
| 718 | * Validate the relevant commands, picking up sections and the symbol
|
---|
| 719 | * table location.
|
---|
| 720 | */
|
---|
[37573] | 721 | load_command_t const *pCmd = pThis->pLoadCmds;
|
---|
[37560] | 722 | for (uint32_t iCmd = 0; ; iCmd++)
|
---|
| 723 | {
|
---|
| 724 | /* cmd index & offset. */
|
---|
[37573] | 725 | uintptr_t offCmd = (uintptr_t)pCmd - (uintptr_t)pThis->pLoadCmds;
|
---|
| 726 | if (offCmd == pThis->cbLoadCmds && iCmd == pThis->cLoadCmds)
|
---|
[37560] | 727 | break;
|
---|
[37573] | 728 | if (offCmd + sizeof(*pCmd) > pThis->cbLoadCmds)
|
---|
[37560] | 729 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 730 | if (iCmd >= pThis->cLoadCmds)
|
---|
[37560] | 731 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 732 |
|
---|
| 733 | /* cmdsize */
|
---|
| 734 | if (pCmd->cmdsize < sizeof(*pCmd))
|
---|
| 735 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 736 | if (pCmd->cmdsize > pThis->cbLoadCmds)
|
---|
[37560] | 737 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 738 | if (RT_ALIGN_32(pCmd->cmdsize, 4) != pCmd->cmdsize)
|
---|
| 739 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 740 |
|
---|
| 741 | /* cmd */
|
---|
| 742 | switch (pCmd->cmd & ~LC_REQ_DYLD)
|
---|
| 743 | {
|
---|
| 744 | /* Validate and store the symbol table details. */
|
---|
| 745 | case LC_SYMTAB:
|
---|
| 746 | {
|
---|
| 747 | struct symtab_command const *pSymTab = (struct symtab_command const *)pCmd;
|
---|
| 748 | if (pSymTab->cmdsize != sizeof(*pSymTab))
|
---|
| 749 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 750 | if (pSymTab->nsyms > _1M)
|
---|
| 751 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 752 | if (pSymTab->strsize > _2M)
|
---|
| 753 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 754 |
|
---|
[37573] | 755 | pThis->offStrTab = pSymTab->stroff;
|
---|
| 756 | pThis->cbStrTab = pSymTab->strsize;
|
---|
| 757 | pThis->offSyms = pSymTab->symoff;
|
---|
| 758 | pThis->cSyms = pSymTab->nsyms;
|
---|
[37560] | 759 | break;
|
---|
| 760 | }
|
---|
| 761 |
|
---|
| 762 | /* Validate the segment. */
|
---|
| 763 | #if ARCH_BITS == 32
|
---|
| 764 | case LC_SEGMENT_32:
|
---|
| 765 | #elif ARCH_BITS == 64
|
---|
| 766 | case LC_SEGMENT_64:
|
---|
| 767 | #else
|
---|
| 768 | # error ARCH_BITS
|
---|
| 769 | #endif
|
---|
| 770 | {
|
---|
| 771 | MY_SEGMENT_COMMAND const *pSeg = (MY_SEGMENT_COMMAND const *)pCmd;
|
---|
| 772 | if (pSeg->cmdsize < sizeof(*pSeg))
|
---|
| 773 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 774 |
|
---|
| 775 | if (pSeg->segname[0] == '\0')
|
---|
| 776 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 777 |
|
---|
| 778 | if (pSeg->nsects > MACHO_MAX_SECT)
|
---|
| 779 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 780 | if (pSeg->nsects * sizeof(MY_SECTION) + sizeof(*pSeg) != pSeg->cmdsize)
|
---|
| 781 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 782 |
|
---|
| 783 | if (pSeg->flags & ~(SG_HIGHVM | SG_FVMLIB | SG_NORELOC | SG_PROTECTED_VERSION_1))
|
---|
| 784 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 785 |
|
---|
[43303] | 786 | if ( pSeg->vmaddr != 0
|
---|
| 787 | || !strcmp(pSeg->segname, "__PAGEZERO"))
|
---|
[37560] | 788 | {
|
---|
| 789 | if (pSeg->vmaddr + RT_ALIGN_Z(pSeg->vmsize, RT_BIT_32(12)) < pSeg->vmaddr)
|
---|
| 790 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 791 | }
|
---|
| 792 | else if (pSeg->vmsize)
|
---|
| 793 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 794 |
|
---|
| 795 | if (pSeg->maxprot & ~VM_PROT_ALL)
|
---|
| 796 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 797 | if (pSeg->initprot & ~VM_PROT_ALL)
|
---|
| 798 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 799 |
|
---|
| 800 | /* Validate the sections. */
|
---|
| 801 | uint32_t uAlignment = 0;
|
---|
| 802 | MY_SECTION const *paSects = (MY_SECTION const *)(pSeg + 1);
|
---|
| 803 | for (uint32_t i = 0; i < pSeg->nsects; i++)
|
---|
| 804 | {
|
---|
| 805 | if (paSects[i].sectname[0] == '\0')
|
---|
| 806 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 807 | if (memcmp(paSects[i].segname, pSeg->segname, sizeof(pSeg->segname)))
|
---|
| 808 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 809 |
|
---|
| 810 | switch (paSects[i].flags & SECTION_TYPE)
|
---|
| 811 | {
|
---|
| 812 | case S_REGULAR:
|
---|
| 813 | case S_CSTRING_LITERALS:
|
---|
| 814 | case S_NON_LAZY_SYMBOL_POINTERS:
|
---|
| 815 | case S_MOD_INIT_FUNC_POINTERS:
|
---|
| 816 | case S_MOD_TERM_FUNC_POINTERS:
|
---|
| 817 | case S_COALESCED:
|
---|
[43303] | 818 | case S_4BYTE_LITERALS:
|
---|
[37560] | 819 | if ( pSeg->filesize != 0
|
---|
| 820 | ? paSects[i].offset - pSeg->fileoff >= pSeg->filesize
|
---|
| 821 | : paSects[i].offset - pSeg->fileoff != pSeg->filesize)
|
---|
| 822 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 823 | if ( paSects[i].addr != 0
|
---|
| 824 | && paSects[i].offset - pSeg->fileoff != paSects[i].addr - pSeg->vmaddr)
|
---|
| 825 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 826 | break;
|
---|
| 827 |
|
---|
| 828 | case S_ZEROFILL:
|
---|
| 829 | if (paSects[i].offset != 0)
|
---|
| 830 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 831 | break;
|
---|
| 832 |
|
---|
| 833 | /* not observed */
|
---|
| 834 | case S_SYMBOL_STUBS:
|
---|
| 835 | case S_INTERPOSING:
|
---|
| 836 | case S_8BYTE_LITERALS:
|
---|
| 837 | case S_16BYTE_LITERALS:
|
---|
| 838 | case S_DTRACE_DOF:
|
---|
| 839 | case S_LAZY_SYMBOL_POINTERS:
|
---|
| 840 | case S_LAZY_DYLIB_SYMBOL_POINTERS:
|
---|
| 841 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 842 | case S_GB_ZEROFILL:
|
---|
| 843 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 844 | default:
|
---|
| 845 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 846 | }
|
---|
| 847 |
|
---|
| 848 | if (paSects[i].align > 12)
|
---|
| 849 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 850 | if (paSects[i].align > uAlignment)
|
---|
| 851 | uAlignment = paSects[i].align;
|
---|
| 852 |
|
---|
| 853 | /* Add to the section table. */
|
---|
[82806] | 854 | if (pThis->cSections >= RT_ELEMENTS(pThis->apSections))
|
---|
[37560] | 855 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[86290] | 856 | pThis->auSections2Segment[pThis->cSections] = pThis->cSegments;
|
---|
[37573] | 857 | pThis->apSections[pThis->cSections++] = &paSects[i];
|
---|
[37560] | 858 | }
|
---|
| 859 |
|
---|
| 860 | if (RT_ALIGN_Z(pSeg->vmaddr, RT_BIT_32(uAlignment)) != pSeg->vmaddr)
|
---|
| 861 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 862 | if ( pSeg->filesize > RT_ALIGN_Z(pSeg->vmsize, RT_BIT_32(uAlignment))
|
---|
| 863 | && pSeg->vmsize != 0)
|
---|
| 864 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[82806] | 865 |
|
---|
| 866 | /*
|
---|
| 867 | * Add to the segment table.
|
---|
| 868 | */
|
---|
| 869 | if (pThis->cSegments >= RT_ELEMENTS(pThis->apSegments))
|
---|
| 870 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 871 | pThis->apSegments[pThis->cSegments++] = pSeg;
|
---|
| 872 |
|
---|
| 873 | /*
|
---|
| 874 | * Take down the text segment size and link address (for in-mem variant):
|
---|
| 875 | */
|
---|
| 876 | if (!strcmp(pSeg->segname, "__TEXT"))
|
---|
| 877 | {
|
---|
| 878 | if (pThis->cbTextSeg != 0)
|
---|
| 879 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 880 | pThis->uTextSegLinkAddr = pSeg->vmaddr;
|
---|
| 881 | pThis->cbTextSeg = pSeg->vmsize;
|
---|
| 882 | }
|
---|
[37560] | 883 | break;
|
---|
| 884 | }
|
---|
| 885 |
|
---|
| 886 | case LC_UUID:
|
---|
| 887 | if (pCmd->cmdsize != sizeof(uuid_command))
|
---|
| 888 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 889 | break;
|
---|
| 890 |
|
---|
| 891 | case LC_DYSYMTAB:
|
---|
| 892 | case LC_UNIXTHREAD:
|
---|
[41050] | 893 | case LC_CODE_SIGNATURE:
|
---|
| 894 | case LC_VERSION_MIN_MACOSX:
|
---|
| 895 | case LC_FUNCTION_STARTS:
|
---|
| 896 | case LC_MAIN:
|
---|
| 897 | case LC_DATA_IN_CODE:
|
---|
[72691] | 898 | case LC_ENCRYPTION_INFO_64:
|
---|
| 899 | case LC_LINKER_OPTION:
|
---|
| 900 | case LC_LINKER_OPTIMIZATION_HINT:
|
---|
| 901 | case LC_VERSION_MIN_TVOS:
|
---|
| 902 | case LC_VERSION_MIN_WATCHOS:
|
---|
| 903 | case LC_NOTE:
|
---|
[86290] | 904 | case LC_SEGMENT_SPLIT_INFO:
|
---|
[82806] | 905 | break;
|
---|
| 906 |
|
---|
[72691] | 907 | case LC_BUILD_VERSION:
|
---|
[82806] | 908 | if (pCmd->cmdsize >= RT_UOFFSETOF(build_version_command_t, aTools))
|
---|
| 909 | {
|
---|
| 910 | build_version_command_t *pBldVerCmd = (build_version_command_t *)pCmd;
|
---|
| 911 | pThis->uMinOsVer = pBldVerCmd->minos;
|
---|
| 912 | pThis->uSdkVer = pBldVerCmd->sdk;
|
---|
| 913 | }
|
---|
[37560] | 914 | break;
|
---|
| 915 |
|
---|
[82806] | 916 | case LC_SOURCE_VERSION:
|
---|
| 917 | if (pCmd->cmdsize == sizeof(source_version_command_t))
|
---|
| 918 | {
|
---|
| 919 | source_version_command_t *pSrcVerCmd = (source_version_command_t *)pCmd;
|
---|
| 920 | pThis->uSrcVer = pSrcVerCmd->version;
|
---|
| 921 | }
|
---|
| 922 | break;
|
---|
| 923 |
|
---|
[37560] | 924 | /* not observed */
|
---|
| 925 | case LC_SYMSEG:
|
---|
| 926 | #if ARCH_BITS == 32
|
---|
| 927 | case LC_SEGMENT_64:
|
---|
| 928 | #elif ARCH_BITS == 64
|
---|
| 929 | case LC_SEGMENT_32:
|
---|
| 930 | #endif
|
---|
| 931 | case LC_ROUTINES_64:
|
---|
| 932 | case LC_ROUTINES:
|
---|
| 933 | case LC_THREAD:
|
---|
| 934 | case LC_LOADFVMLIB:
|
---|
| 935 | case LC_IDFVMLIB:
|
---|
| 936 | case LC_IDENT:
|
---|
| 937 | case LC_FVMFILE:
|
---|
| 938 | case LC_PREPAGE:
|
---|
| 939 | case LC_TWOLEVEL_HINTS:
|
---|
| 940 | case LC_PREBIND_CKSUM:
|
---|
[41050] | 941 | case LC_ENCRYPTION_INFO:
|
---|
[37560] | 942 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 943 |
|
---|
[41050] | 944 | /* no phones here yet */
|
---|
| 945 | case LC_VERSION_MIN_IPHONEOS:
|
---|
| 946 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 947 |
|
---|
[37560] | 948 | /* dylib */
|
---|
| 949 | case LC_LOAD_DYLIB:
|
---|
| 950 | case LC_ID_DYLIB:
|
---|
| 951 | case LC_LOAD_DYLINKER:
|
---|
| 952 | case LC_ID_DYLINKER:
|
---|
| 953 | case LC_PREBOUND_DYLIB:
|
---|
| 954 | case LC_LOAD_WEAK_DYLIB & ~LC_REQ_DYLD:
|
---|
| 955 | case LC_SUB_FRAMEWORK:
|
---|
| 956 | case LC_SUB_UMBRELLA:
|
---|
| 957 | case LC_SUB_CLIENT:
|
---|
| 958 | case LC_SUB_LIBRARY:
|
---|
[41050] | 959 | case LC_RPATH:
|
---|
| 960 | case LC_REEXPORT_DYLIB:
|
---|
| 961 | case LC_LAZY_LOAD_DYLIB:
|
---|
| 962 | case LC_DYLD_INFO:
|
---|
| 963 | case LC_DYLD_INFO_ONLY:
|
---|
| 964 | case LC_LOAD_UPWARD_DYLIB:
|
---|
| 965 | case LC_DYLD_ENVIRONMENT:
|
---|
| 966 | case LC_DYLIB_CODE_SIGN_DRS:
|
---|
[37560] | 967 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 968 |
|
---|
| 969 | default:
|
---|
| 970 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 971 | }
|
---|
| 972 |
|
---|
| 973 | /* next */
|
---|
| 974 | pCmd = (load_command_t *)((uintptr_t)pCmd + pCmd->cmdsize);
|
---|
| 975 | }
|
---|
| 976 |
|
---|
[82806] | 977 | /*
|
---|
| 978 | * Try figure out the virtual addresses for the symbol and string tables.
|
---|
| 979 | */
|
---|
| 980 | if (pThis->cbStrTab > 0)
|
---|
| 981 | pThis->uStrTabLinkAddr = rtR0DbgKrnlDarwinFileOffToVirtAddr(pThis, pThis->offStrTab);
|
---|
| 982 | if (pThis->cSyms > 0)
|
---|
| 983 | pThis->uSymTabLinkAddr = rtR0DbgKrnlDarwinFileOffToVirtAddr(pThis, pThis->offSyms);
|
---|
| 984 |
|
---|
[37560] | 985 | return VINF_SUCCESS;
|
---|
| 986 | }
|
---|
| 987 |
|
---|
| 988 |
|
---|
| 989 | /**
|
---|
[82806] | 990 | * Loads and validates the symbol and string tables.
|
---|
| 991 | *
|
---|
| 992 | * @returns IPRT status code.
|
---|
| 993 | * @param pThis The internal scratch data.
|
---|
| 994 | * @param pszKernelFile The name of the kernel file.
|
---|
| 995 | */
|
---|
| 996 | static int rtR0DbgKrnlDarwinLoadSymTab(RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
| 997 | {
|
---|
| 998 | /*
|
---|
| 999 | * Load the tables.
|
---|
| 1000 | */
|
---|
| 1001 | int rc;
|
---|
| 1002 | pThis->paSyms = (MY_NLIST *)RTMemAllocZ(pThis->cSyms * sizeof(MY_NLIST));
|
---|
| 1003 | if (pThis->paSyms)
|
---|
| 1004 | {
|
---|
| 1005 | rc = RTFileReadAt(pThis->hFile, pThis->offArch + pThis->offSyms, pThis->paSyms, pThis->cSyms * sizeof(MY_NLIST), NULL);
|
---|
| 1006 | if (RT_SUCCESS(rc))
|
---|
| 1007 | {
|
---|
| 1008 | pThis->pachStrTab = (char *)RTMemAllocZ(pThis->cbStrTab + 1);
|
---|
| 1009 | if (pThis->pachStrTab)
|
---|
| 1010 | {
|
---|
| 1011 | rc = RTFileReadAt(pThis->hFile, pThis->offArch + pThis->offStrTab, pThis->pachStrTab, pThis->cbStrTab, NULL);
|
---|
| 1012 | if (RT_SUCCESS(rc))
|
---|
| 1013 | {
|
---|
| 1014 | /*
|
---|
| 1015 | * Join paths with the in-memory code path.
|
---|
| 1016 | */
|
---|
| 1017 | rc = rtR0DbgKrnlDarwinParseSymTab(pThis, pszKernelFile);
|
---|
| 1018 | }
|
---|
| 1019 | }
|
---|
| 1020 | else
|
---|
| 1021 | rc = VERR_NO_MEMORY;
|
---|
| 1022 | }
|
---|
| 1023 | }
|
---|
| 1024 | else
|
---|
| 1025 | rc = VERR_NO_MEMORY;
|
---|
| 1026 | return rc;
|
---|
| 1027 | }
|
---|
| 1028 |
|
---|
| 1029 |
|
---|
| 1030 | /**
|
---|
| 1031 | * Loads the load commands and validates them.
|
---|
| 1032 | *
|
---|
| 1033 | * @returns IPRT status code.
|
---|
| 1034 | * @param pThis The internal scratch data.
|
---|
| 1035 | */
|
---|
| 1036 | static int rtR0DbgKrnlDarwinLoadCommands(RTDBGKRNLINFOINT *pThis)
|
---|
| 1037 | {
|
---|
| 1038 | int rc;
|
---|
| 1039 | pThis->pLoadCmds = (load_command_t *)RTMemAlloc(pThis->cbLoadCmds);
|
---|
| 1040 | if (pThis->pLoadCmds)
|
---|
| 1041 | {
|
---|
| 1042 | rc = RTFileReadAt(pThis->hFile, pThis->offArch + sizeof(MY_MACHO_HEADER), pThis->pLoadCmds, pThis->cbLoadCmds, NULL);
|
---|
| 1043 | if (RT_SUCCESS(rc))
|
---|
| 1044 | rc = rtR0DbgKrnlDarwinParseCommands(pThis);
|
---|
| 1045 | }
|
---|
| 1046 | else
|
---|
| 1047 | rc = VERR_NO_MEMORY;
|
---|
| 1048 | return rc;
|
---|
| 1049 | }
|
---|
| 1050 |
|
---|
| 1051 |
|
---|
| 1052 | /**
|
---|
[37560] | 1053 | * Loads the FAT and MACHO headers, noting down the relevant info.
|
---|
| 1054 | *
|
---|
| 1055 | * @returns IPRT status code.
|
---|
[37573] | 1056 | * @param pThis The internal scratch data.
|
---|
[37560] | 1057 | */
|
---|
[40856] | 1058 | static int rtR0DbgKrnlDarwinLoadFileHeaders(RTDBGKRNLINFOINT *pThis)
|
---|
[37560] | 1059 | {
|
---|
| 1060 | uint32_t i;
|
---|
| 1061 |
|
---|
[37573] | 1062 | pThis->offArch = 0;
|
---|
| 1063 | pThis->cbArch = 0;
|
---|
[37560] | 1064 |
|
---|
| 1065 | /*
|
---|
| 1066 | * Read the first bit of the file, parse the FAT if found there.
|
---|
| 1067 | */
|
---|
[37573] | 1068 | int rc = RTFileReadAt(pThis->hFile, 0, pThis->abBuf, sizeof(fat_header_t) + sizeof(fat_arch_t) * 16, NULL);
|
---|
[37560] | 1069 | if (RT_FAILURE(rc))
|
---|
| 1070 | return rc;
|
---|
| 1071 |
|
---|
[37573] | 1072 | fat_header_t *pFat = (fat_header *)pThis->abBuf;
|
---|
[37560] | 1073 | fat_arch_t *paFatArches = (fat_arch_t *)(pFat + 1);
|
---|
| 1074 |
|
---|
| 1075 | /* Correct FAT endian first. */
|
---|
| 1076 | if (pFat->magic == IMAGE_FAT_SIGNATURE_OE)
|
---|
| 1077 | {
|
---|
| 1078 | pFat->magic = RT_BSWAP_U32(pFat->magic);
|
---|
| 1079 | pFat->nfat_arch = RT_BSWAP_U32(pFat->nfat_arch);
|
---|
| 1080 | i = RT_MIN(pFat->nfat_arch, 16);
|
---|
| 1081 | while (i-- > 0)
|
---|
| 1082 | {
|
---|
| 1083 | paFatArches[i].cputype = RT_BSWAP_U32(paFatArches[i].cputype);
|
---|
| 1084 | paFatArches[i].cpusubtype = RT_BSWAP_U32(paFatArches[i].cpusubtype);
|
---|
| 1085 | paFatArches[i].offset = RT_BSWAP_U32(paFatArches[i].offset);
|
---|
| 1086 | paFatArches[i].size = RT_BSWAP_U32(paFatArches[i].size);
|
---|
| 1087 | paFatArches[i].align = RT_BSWAP_U32(paFatArches[i].align);
|
---|
| 1088 | }
|
---|
| 1089 | }
|
---|
| 1090 |
|
---|
| 1091 | /* Lookup our architecture in the FAT. */
|
---|
| 1092 | if (pFat->magic == IMAGE_FAT_SIGNATURE)
|
---|
| 1093 | {
|
---|
| 1094 | if (pFat->nfat_arch > 16)
|
---|
| 1095 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 1096 |
|
---|
| 1097 | for (i = 0; i < pFat->nfat_arch; i++)
|
---|
| 1098 | {
|
---|
| 1099 | if ( paFatArches[i].cputype == MY_CPU_TYPE
|
---|
| 1100 | && paFatArches[i].cpusubtype == MY_CPU_SUBTYPE_ALL)
|
---|
| 1101 | {
|
---|
[37573] | 1102 | pThis->offArch = paFatArches[i].offset;
|
---|
| 1103 | pThis->cbArch = paFatArches[i].size;
|
---|
| 1104 | if (!pThis->cbArch)
|
---|
[37560] | 1105 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 1106 | if (pThis->offArch < sizeof(fat_header_t) + sizeof(fat_arch_t) * pFat->nfat_arch)
|
---|
[37560] | 1107 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 1108 | if (pThis->offArch + pThis->cbArch <= pThis->offArch)
|
---|
[37560] | 1109 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1110 | break;
|
---|
| 1111 | }
|
---|
| 1112 | }
|
---|
| 1113 | if (i >= pFat->nfat_arch)
|
---|
| 1114 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1115 | }
|
---|
| 1116 |
|
---|
| 1117 | /*
|
---|
| 1118 | * Read the Mach-O header and validate it.
|
---|
| 1119 | */
|
---|
[37573] | 1120 | rc = RTFileReadAt(pThis->hFile, pThis->offArch, pThis->abBuf, sizeof(MY_MACHO_HEADER), NULL);
|
---|
[37560] | 1121 | if (RT_FAILURE(rc))
|
---|
| 1122 | return rc;
|
---|
[37573] | 1123 | MY_MACHO_HEADER const *pHdr = (MY_MACHO_HEADER const *)pThis->abBuf;
|
---|
[37560] | 1124 | if (pHdr->magic != MY_MACHO_MAGIC)
|
---|
| 1125 | {
|
---|
| 1126 | if ( pHdr->magic == IMAGE_MACHO32_SIGNATURE
|
---|
| 1127 | || pHdr->magic == IMAGE_MACHO32_SIGNATURE_OE
|
---|
| 1128 | || pHdr->magic == IMAGE_MACHO64_SIGNATURE
|
---|
| 1129 | || pHdr->magic == IMAGE_MACHO64_SIGNATURE_OE)
|
---|
| 1130 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1131 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 1132 | }
|
---|
| 1133 |
|
---|
| 1134 | if (pHdr->cputype != MY_CPU_TYPE)
|
---|
| 1135 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1136 | if (pHdr->cpusubtype != MY_CPU_SUBTYPE_ALL)
|
---|
| 1137 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1138 | if (pHdr->filetype != MH_EXECUTE)
|
---|
| 1139 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1140 | if (pHdr->ncmds < 4)
|
---|
| 1141 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1142 | if (pHdr->ncmds > 256)
|
---|
| 1143 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1144 | if (pHdr->sizeofcmds <= pHdr->ncmds * sizeof(load_command_t))
|
---|
| 1145 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1146 | if (pHdr->sizeofcmds >= _1M)
|
---|
| 1147 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1148 | if (pHdr->flags & ~MH_VALID_FLAGS)
|
---|
| 1149 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1150 |
|
---|
[37573] | 1151 | pThis->cLoadCmds = pHdr->ncmds;
|
---|
| 1152 | pThis->cbLoadCmds = pHdr->sizeofcmds;
|
---|
[37560] | 1153 | return VINF_SUCCESS;
|
---|
| 1154 | }
|
---|
| 1155 |
|
---|
| 1156 |
|
---|
[40856] | 1157 | /**
|
---|
| 1158 | * Destructor.
|
---|
| 1159 | *
|
---|
| 1160 | * @param pThis The instance to destroy.
|
---|
| 1161 | */
|
---|
| 1162 | static void rtR0DbgKrnlDarwinDtor(RTDBGKRNLINFOINT *pThis)
|
---|
[37560] | 1163 | {
|
---|
[40856] | 1164 | pThis->u32Magic = ~RTDBGKRNLINFO_MAGIC;
|
---|
[37573] | 1165 |
|
---|
[82806] | 1166 | if (!pThis->fIsInMem)
|
---|
| 1167 | RTMemFree(pThis->pachStrTab);
|
---|
[40856] | 1168 | pThis->pachStrTab = NULL;
|
---|
| 1169 |
|
---|
[82806] | 1170 | if (!pThis->fIsInMem)
|
---|
| 1171 | RTMemFree(pThis->paSyms);
|
---|
[40856] | 1172 | pThis->paSyms = NULL;
|
---|
| 1173 |
|
---|
| 1174 | RTMemFree(pThis);
|
---|
| 1175 | }
|
---|
| 1176 |
|
---|
| 1177 |
|
---|
[82806] | 1178 | /**
|
---|
| 1179 | * Completes a handle, logging details.
|
---|
| 1180 | *
|
---|
| 1181 | * @returns VINF_SUCCESS
|
---|
| 1182 | * @param phKrnlInfo Where to return the handle.
|
---|
| 1183 | * @param pThis The instance to complete.
|
---|
| 1184 | * @param pszKernelFile What kernel file it's based on.
|
---|
| 1185 | */
|
---|
| 1186 | static int rtR0DbgKrnlDarwinSuccess(PRTDBGKRNLINFO phKrnlInfo, RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
| 1187 | {
|
---|
| 1188 | pThis->u32Magic = RTDBGKRNLINFO_MAGIC;
|
---|
| 1189 | pThis->cRefs = 1;
|
---|
| 1190 |
|
---|
| 1191 | #if defined(DEBUG) || defined(IN_RING3)
|
---|
| 1192 | LOG_SUCCESS("RTR0DbgKrnlInfoOpen: Found: %#zx + %#zx - %s\n", pThis->uTextSegLinkAddr, pThis->offLoad, pszKernelFile);
|
---|
| 1193 | #else
|
---|
[82809] | 1194 | LOG_SUCCESS("RTR0DbgKrnlInfoOpen: Found: %s\n", pszKernelFile);
|
---|
[82806] | 1195 | #endif
|
---|
| 1196 | LOG_SUCCESS("RTR0DbgKrnlInfoOpen: SDK version: %u.%u.%u MinOS version: %u.%u.%u Source version: %u.%u.%u.%u.%u\n",
|
---|
| 1197 | pThis->uSdkVer >> 16, (pThis->uSdkVer >> 8) & 0xff, pThis->uSdkVer & 0xff,
|
---|
| 1198 | pThis->uMinOsVer >> 16, (pThis->uMinOsVer >> 8) & 0xff, pThis->uMinOsVer & 0xff,
|
---|
| 1199 | (uint32_t)(pThis->uSrcVer >> 40),
|
---|
| 1200 | (uint32_t)(pThis->uSrcVer >> 30) & 0x3ff,
|
---|
| 1201 | (uint32_t)(pThis->uSrcVer >> 20) & 0x3ff,
|
---|
| 1202 | (uint32_t)(pThis->uSrcVer >> 10) & 0x3ff,
|
---|
| 1203 | (uint32_t)(pThis->uSrcVer) & 0x3ff);
|
---|
| 1204 |
|
---|
| 1205 | *phKrnlInfo = pThis;
|
---|
| 1206 | return VINF_SUCCESS;
|
---|
| 1207 | }
|
---|
| 1208 |
|
---|
| 1209 |
|
---|
[58598] | 1210 | static int rtR0DbgKrnlDarwinOpen(PRTDBGKRNLINFO phKrnlInfo, const char *pszKernelFile)
|
---|
[40856] | 1211 | {
|
---|
| 1212 | RTDBGKRNLINFOINT *pThis = (RTDBGKRNLINFOINT *)RTMemAllocZ(sizeof(*pThis));
|
---|
[37573] | 1213 | if (!pThis)
|
---|
[37560] | 1214 | return VERR_NO_MEMORY;
|
---|
[37573] | 1215 | pThis->hFile = NIL_RTFILE;
|
---|
[37560] | 1216 |
|
---|
[86290] | 1217 | for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aoffLoadSegments); i++)
|
---|
| 1218 | pThis->aoffLoadSegments[i] = UINTPTR_MAX;
|
---|
| 1219 |
|
---|
[58598] | 1220 | int rc = RTFileOpen(&pThis->hFile, pszKernelFile, RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_WRITE);
|
---|
[37560] | 1221 | if (RT_SUCCESS(rc))
|
---|
[40856] | 1222 | rc = rtR0DbgKrnlDarwinLoadFileHeaders(pThis);
|
---|
[37560] | 1223 | if (RT_SUCCESS(rc))
|
---|
[40856] | 1224 | rc = rtR0DbgKrnlDarwinLoadCommands(pThis);
|
---|
[37560] | 1225 | if (RT_SUCCESS(rc))
|
---|
[69648] | 1226 | rc = rtR0DbgKrnlDarwinLoadSymTab(pThis, pszKernelFile);
|
---|
[37560] | 1227 | if (RT_SUCCESS(rc))
|
---|
[41052] | 1228 | {
|
---|
[86305] | 1229 | rc = rtR0DbgKrnlDarwinInitLoadDisplacements(pThis);
|
---|
| 1230 | if (RT_SUCCESS(rc))
|
---|
| 1231 | rc = rtR0DbgKrnlDarwinCheckStandardSymbols(pThis, pszKernelFile);
|
---|
[41052] | 1232 | }
|
---|
[37560] | 1233 |
|
---|
[40856] | 1234 | rtR0DbgKrnlDarwinLoadDone(pThis);
|
---|
[37566] | 1235 | if (RT_SUCCESS(rc))
|
---|
[82806] | 1236 | rtR0DbgKrnlDarwinSuccess(phKrnlInfo, pThis, pszKernelFile);
|
---|
[37566] | 1237 | else
|
---|
[40856] | 1238 | rtR0DbgKrnlDarwinDtor(pThis);
|
---|
[37560] | 1239 | return rc;
|
---|
| 1240 | }
|
---|
| 1241 |
|
---|
[37573] | 1242 |
|
---|
[82806] | 1243 | #ifdef IN_RING0
|
---|
| 1244 |
|
---|
| 1245 | /**
|
---|
| 1246 | * Checks if a page is present.
|
---|
| 1247 | * @returns true if it is, false if it isn't.
|
---|
| 1248 | * @param uPageAddr The address of/in the page to check.
|
---|
| 1249 | */
|
---|
| 1250 | static bool rtR0DbgKrnlDarwinIsPagePresent(uintptr_t uPageAddr)
|
---|
| 1251 | {
|
---|
| 1252 | /** @todo the dtrace code subjects the result to pmap_is_valid, but that
|
---|
| 1253 | * isn't exported, so we'll have to make to with != 0 here. */
|
---|
| 1254 | return pmap_find_phys(kernel_pmap, uPageAddr) != 0;
|
---|
| 1255 | }
|
---|
| 1256 |
|
---|
| 1257 |
|
---|
| 1258 | /**
|
---|
| 1259 | * Used to check whether a memory range is present or not.
|
---|
| 1260 | *
|
---|
| 1261 | * This is applied to the to the load commands and selected portions of the link
|
---|
| 1262 | * edit segment.
|
---|
| 1263 | *
|
---|
| 1264 | * @returns true if all present, false if not.
|
---|
| 1265 | * @param uAddress The start address.
|
---|
| 1266 | * @param cb Number of bytes to check.
|
---|
| 1267 | * @param pszWhat What we're checking, for logging.
|
---|
| 1268 | * @param pHdr The header address (for logging).
|
---|
| 1269 | */
|
---|
| 1270 | static bool rtR0DbgKrnlDarwinIsRangePresent(uintptr_t uAddress, size_t cb,
|
---|
| 1271 | const char *pszWhat, MY_MACHO_HEADER const volatile *pHdr)
|
---|
| 1272 | {
|
---|
| 1273 | uintptr_t const uStartAddress = uAddress;
|
---|
| 1274 | intptr_t cPages = RT_ALIGN_Z(cb + (uAddress & PAGE_OFFSET_MASK), PAGE_SIZE);
|
---|
[82809] | 1275 | RT_NOREF(uStartAddress, pszWhat, pHdr);
|
---|
[82806] | 1276 | for (;;)
|
---|
| 1277 | {
|
---|
| 1278 | if (!rtR0DbgKrnlDarwinIsPagePresent(uAddress))
|
---|
| 1279 | {
|
---|
| 1280 | LOG_NOT_PRESENT("RTR0DbgInfo: %p: Page in %s is not present: %#zx - rva %#zx; in structure %#zx (%#zx LB %#zx)\n",
|
---|
[85167] | 1281 | (void *)pHdr, pszWhat, uAddress, uAddress - (uintptr_t)pHdr, uAddress - uStartAddress, uStartAddress, cb);
|
---|
[82806] | 1282 | return false;
|
---|
| 1283 | }
|
---|
| 1284 |
|
---|
| 1285 | cPages -= 1;
|
---|
| 1286 | if (cPages <= 0)
|
---|
| 1287 | uAddress += PAGE_SIZE;
|
---|
| 1288 | else
|
---|
| 1289 | return true;
|
---|
| 1290 | }
|
---|
| 1291 | }
|
---|
| 1292 |
|
---|
| 1293 |
|
---|
| 1294 | /**
|
---|
| 1295 | * Try "open" the in-memory kernel image
|
---|
| 1296 | *
|
---|
| 1297 | * @returns IPRT stauts code
|
---|
| 1298 | * @param phKrnlInfo Where to return the info instance on success.
|
---|
| 1299 | */
|
---|
| 1300 | static int rtR0DbgKrnlDarwinOpenInMemory(PRTDBGKRNLINFO phKrnlInfo)
|
---|
| 1301 | {
|
---|
| 1302 | RTDBGKRNLINFOINT *pThis = (RTDBGKRNLINFOINT *)RTMemAllocZ(sizeof(*pThis));
|
---|
| 1303 | if (!pThis)
|
---|
| 1304 | return VERR_NO_MEMORY;
|
---|
| 1305 | pThis->hFile = NIL_RTFILE;
|
---|
| 1306 | pThis->fIsInMem = true;
|
---|
| 1307 |
|
---|
[86290] | 1308 | for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aoffLoadSegments); i++)
|
---|
| 1309 | pThis->aoffLoadSegments[i] = UINTPTR_MAX;
|
---|
| 1310 |
|
---|
[82806] | 1311 | /*
|
---|
| 1312 | * Figure the search range based on a symbol that is supposed to be in
|
---|
| 1313 | * kernel text segment, using it as the upper boundrary. The lower boundary
|
---|
| 1314 | * is determined by subtracting a max kernel size of 64MB (the largest kernel
|
---|
| 1315 | * file, kernel.kasan, is around 45MB, but the end of __TEXT is about 27 MB,
|
---|
| 1316 | * which means we should still have plenty of room for future growth with 64MB).
|
---|
| 1317 | */
|
---|
| 1318 | uintptr_t const uSomeKernelAddr = (uintptr_t)&absolutetime_to_nanoseconds;
|
---|
| 1319 | uintptr_t const uLowestKernelAddr = uSomeKernelAddr - _64M;
|
---|
| 1320 |
|
---|
| 1321 | /*
|
---|
| 1322 | * The kernel is probably aligned at some boundrary larger than a page size,
|
---|
| 1323 | * so to speed things up we start by assuming the alignment is page directory
|
---|
| 1324 | * sized. In case we're wrong and it's smaller, we decrease the alignment till
|
---|
| 1325 | * we've reach the page size.
|
---|
| 1326 | */
|
---|
| 1327 | uintptr_t fPrevAlignMask = ~(uintptr_t)0;
|
---|
| 1328 | uintptr_t uCurAlign = _2M; /* ASSUMES the kernel is typically 2MB aligned. */
|
---|
| 1329 | while (uCurAlign >= PAGE_SIZE)
|
---|
| 1330 | {
|
---|
| 1331 | /*
|
---|
| 1332 | * Search down from the symbol address looking for a mach-O header that
|
---|
| 1333 | * looks like it might belong to the kernel.
|
---|
| 1334 | */
|
---|
| 1335 | for (uintptr_t uCur = uSomeKernelAddr & ~(uCurAlign - 1); uCur >= uLowestKernelAddr; uCur -= uCurAlign)
|
---|
| 1336 | {
|
---|
| 1337 | /* Skip pages we've checked in previous iterations and pages that aren't present: */
|
---|
| 1338 | /** @todo This is a little bogus in case the header is paged out. */
|
---|
| 1339 | if ( (uCur & fPrevAlignMask)
|
---|
| 1340 | && rtR0DbgKrnlDarwinIsPagePresent(uCur))
|
---|
| 1341 | {
|
---|
| 1342 | /*
|
---|
| 1343 | * Look for valid mach-o header (we skip cpusubtype on purpose here).
|
---|
| 1344 | */
|
---|
| 1345 | MY_MACHO_HEADER const volatile *pHdr = (MY_MACHO_HEADER const volatile *)uCur;
|
---|
| 1346 | if ( pHdr->magic == MY_MACHO_MAGIC
|
---|
| 1347 | && pHdr->filetype == MH_EXECUTE
|
---|
| 1348 | && pHdr->cputype == MY_CPU_TYPE)
|
---|
| 1349 | {
|
---|
| 1350 | /* More header validation: */
|
---|
| 1351 | pThis->cLoadCmds = pHdr->ncmds;
|
---|
| 1352 | pThis->cbLoadCmds = pHdr->sizeofcmds;
|
---|
| 1353 | if (pHdr->ncmds < 4)
|
---|
[85167] | 1354 | LOG_MISMATCH("RTR0DbgInfo: %p: ncmds=%u is too small\n", (void *)pHdr, pThis->cLoadCmds);
|
---|
[82806] | 1355 | else if (pThis->cLoadCmds > 256)
|
---|
[85167] | 1356 | LOG_MISMATCH("RTR0DbgInfo: %p: ncmds=%u is too big\n", (void *)pHdr, pThis->cLoadCmds);
|
---|
[82806] | 1357 | else if (pThis->cbLoadCmds <= pThis->cLoadCmds * sizeof(load_command_t))
|
---|
| 1358 | LOG_MISMATCH("RTR0DbgInfo: %p: sizeofcmds=%u is too small for ncmds=%u\n",
|
---|
[85167] | 1359 | (void *)pHdr, pThis->cbLoadCmds, pThis->cLoadCmds);
|
---|
[82806] | 1360 | else if (pThis->cbLoadCmds >= _1M)
|
---|
[85167] | 1361 | LOG_MISMATCH("RTR0DbgInfo: %p: sizeofcmds=%u is too big\n", (void *)pHdr, pThis->cbLoadCmds);
|
---|
[82806] | 1362 | else if (pHdr->flags & ~MH_VALID_FLAGS)
|
---|
[85167] | 1363 | LOG_MISMATCH("RTR0DbgInfo: %p: invalid flags=%#x\n", (void *)pHdr, pHdr->flags);
|
---|
[82806] | 1364 | /*
|
---|
| 1365 | * Check that we can safely read the load commands, then parse & validate them.
|
---|
| 1366 | */
|
---|
| 1367 | else if (rtR0DbgKrnlDarwinIsRangePresent((uintptr_t)(pHdr + 1), pThis->cbLoadCmds, "load commands", pHdr))
|
---|
| 1368 | {
|
---|
| 1369 | pThis->pLoadCmds = (load_command_t *)(pHdr + 1);
|
---|
| 1370 | int rc = rtR0DbgKrnlDarwinParseCommands(pThis);
|
---|
| 1371 | if (RT_SUCCESS(rc))
|
---|
| 1372 | {
|
---|
| 1373 | /* Calculate the slide value. This is typically zero as the
|
---|
| 1374 | load commands has been relocated (the case with 10.14.0 at least). */
|
---|
| 1375 | /** @todo ASSUMES that the __TEXT segment comes first and includes the
|
---|
| 1376 | * mach-o header and load commands and all that. */
|
---|
| 1377 | pThis->offLoad = uCur - pThis->uTextSegLinkAddr;
|
---|
| 1378 |
|
---|
| 1379 | /* Check that the kernel symbol is in the text segment: */
|
---|
| 1380 | uintptr_t const offSomeKernAddr = uSomeKernelAddr - uCur;
|
---|
| 1381 | if (offSomeKernAddr >= pThis->cbTextSeg)
|
---|
| 1382 | LOG_MISMATCH("RTR0DbgInfo: %p: Our symbol at %zx (off %zx) isn't within the text segment (size %#zx)\n",
|
---|
[85167] | 1383 | (void *)pHdr, uSomeKernelAddr, offSomeKernAddr, pThis->cbTextSeg);
|
---|
[82806] | 1384 | /*
|
---|
| 1385 | * Parse the symbol+string tables.
|
---|
| 1386 | */
|
---|
| 1387 | else if (pThis->uSymTabLinkAddr == 0)
|
---|
| 1388 | LOG_MISMATCH("RTR0DbgInfo: %p: No symbol table VA (off %#x L %#x)\n",
|
---|
[85167] | 1389 | (void *)pHdr, pThis->offSyms, pThis->cSyms);
|
---|
[82806] | 1390 | else if (pThis->uStrTabLinkAddr == 0)
|
---|
| 1391 | LOG_MISMATCH("RTR0DbgInfo: %p: No string table VA (off %#x LB %#x)\n",
|
---|
[85167] | 1392 | (void *)pHdr, pThis->offSyms, pThis->cbStrTab);
|
---|
[82806] | 1393 | else if ( rtR0DbgKrnlDarwinIsRangePresent(pThis->uStrTabLinkAddr + pThis->offLoad,
|
---|
| 1394 | pThis->cbStrTab, "string table", pHdr)
|
---|
| 1395 | && rtR0DbgKrnlDarwinIsRangePresent(pThis->uSymTabLinkAddr + pThis->offLoad,
|
---|
| 1396 | pThis->cSyms * sizeof(pThis->paSyms),
|
---|
| 1397 | "symbol table", pHdr))
|
---|
| 1398 | {
|
---|
| 1399 | pThis->pachStrTab = (char *)pThis->uStrTabLinkAddr + pThis->offLoad;
|
---|
| 1400 | pThis->paSyms = (MY_NLIST *)pThis->uSymTabLinkAddr + pThis->offLoad;
|
---|
| 1401 | rc = rtR0DbgKrnlDarwinParseSymTab(pThis, "in-memory");
|
---|
| 1402 | if (RT_SUCCESS(rc))
|
---|
| 1403 | {
|
---|
[86305] | 1404 | rc = rtR0DbgKrnlDarwinInitLoadDisplacements(pThis);
|
---|
[82806] | 1405 | if (RT_SUCCESS(rc))
|
---|
[86305] | 1406 | {
|
---|
| 1407 | /*
|
---|
| 1408 | * Finally check the standard candles.
|
---|
| 1409 | */
|
---|
| 1410 | rc = rtR0DbgKrnlDarwinCheckStandardSymbols(pThis, "in-memory");
|
---|
| 1411 | rtR0DbgKrnlDarwinLoadDone(pThis);
|
---|
| 1412 | if (RT_SUCCESS(rc))
|
---|
| 1413 | return rtR0DbgKrnlDarwinSuccess(phKrnlInfo, pThis, "in-memory");
|
---|
| 1414 | }
|
---|
[82806] | 1415 | }
|
---|
| 1416 | }
|
---|
| 1417 | }
|
---|
| 1418 |
|
---|
| 1419 | RT_ZERO(pThis->apSections);
|
---|
| 1420 | RT_ZERO(pThis->apSegments);
|
---|
| 1421 | pThis->pLoadCmds = NULL;
|
---|
| 1422 | }
|
---|
| 1423 | }
|
---|
| 1424 | }
|
---|
| 1425 | }
|
---|
| 1426 |
|
---|
| 1427 | fPrevAlignMask = uCurAlign - 1;
|
---|
| 1428 | uCurAlign >>= 1;
|
---|
| 1429 | }
|
---|
| 1430 |
|
---|
| 1431 | RTMemFree(pThis);
|
---|
| 1432 | return VERR_GENERAL_FAILURE;
|
---|
| 1433 | }
|
---|
| 1434 |
|
---|
| 1435 | #endif /* IN_RING0 */
|
---|
| 1436 |
|
---|
[58598] | 1437 | RTR0DECL(int) RTR0DbgKrnlInfoOpen(PRTDBGKRNLINFO phKrnlInfo, uint32_t fFlags)
|
---|
| 1438 | {
|
---|
| 1439 | AssertPtrReturn(phKrnlInfo, VERR_INVALID_POINTER);
|
---|
| 1440 | *phKrnlInfo = NIL_RTDBGKRNLINFO;
|
---|
| 1441 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
|
---|
| 1442 |
|
---|
[82806] | 1443 | #ifdef IN_RING0
|
---|
[58598] | 1444 | /*
|
---|
[82806] | 1445 | * Try see if we can use the kernel memory directly. This depends on not
|
---|
| 1446 | * having the __LINKEDIT segment jettisoned or swapped out. For older
|
---|
| 1447 | * kernels this is typically the case, unless kallsyms=1 is in boot-args.
|
---|
| 1448 | */
|
---|
| 1449 | int rc = rtR0DbgKrnlDarwinOpenInMemory(phKrnlInfo);
|
---|
| 1450 | if (RT_SUCCESS(rc))
|
---|
| 1451 | {
|
---|
| 1452 | Log(("RTR0DbgKrnlInfoOpen: Using in-memory kernel.\n"));
|
---|
| 1453 | return rc;
|
---|
| 1454 | }
|
---|
| 1455 | #else
|
---|
| 1456 | int rc = VERR_WRONG_ORDER; /* shut up stupid MSC */
|
---|
| 1457 | #endif
|
---|
| 1458 |
|
---|
| 1459 | /*
|
---|
[58598] | 1460 | * Go thru likely kernel locations
|
---|
| 1461 | *
|
---|
| 1462 | * Note! Check the OS X version and reorder the list?
|
---|
| 1463 | * Note! We should try fish kcsuffix out of bootargs or somewhere one day.
|
---|
| 1464 | */
|
---|
| 1465 | static bool s_fFirstCall = true;
|
---|
[69643] | 1466 | #ifdef IN_RING3
|
---|
| 1467 | extern const char *g_pszTestKernel;
|
---|
| 1468 | #endif
|
---|
[58598] | 1469 | struct
|
---|
| 1470 | {
|
---|
| 1471 | const char *pszLocation;
|
---|
| 1472 | int rc;
|
---|
| 1473 | } aKernels[] =
|
---|
| 1474 | {
|
---|
[69643] | 1475 | #ifdef IN_RING3
|
---|
| 1476 | { g_pszTestKernel, VERR_WRONG_ORDER },
|
---|
| 1477 | #endif
|
---|
[58598] | 1478 | { "/System/Library/Kernels/kernel", VERR_WRONG_ORDER },
|
---|
| 1479 | { "/System/Library/Kernels/kernel.development", VERR_WRONG_ORDER },
|
---|
| 1480 | { "/System/Library/Kernels/kernel.debug", VERR_WRONG_ORDER },
|
---|
| 1481 | { "/mach_kernel", VERR_WRONG_ORDER },
|
---|
| 1482 | };
|
---|
| 1483 | for (uint32_t i = 0; i < RT_ELEMENTS(aKernels); i++)
|
---|
| 1484 | {
|
---|
| 1485 | aKernels[i].rc = rc = rtR0DbgKrnlDarwinOpen(phKrnlInfo, aKernels[i].pszLocation);
|
---|
| 1486 | if (RT_SUCCESS(rc))
|
---|
| 1487 | {
|
---|
| 1488 | if (s_fFirstCall)
|
---|
| 1489 | {
|
---|
| 1490 | printf("RTR0DbgKrnlInfoOpen: Using kernel file '%s'\n", aKernels[i].pszLocation);
|
---|
| 1491 | s_fFirstCall = false;
|
---|
| 1492 | }
|
---|
| 1493 | return rc;
|
---|
| 1494 | }
|
---|
| 1495 | }
|
---|
| 1496 |
|
---|
| 1497 | /*
|
---|
| 1498 | * Failed.
|
---|
| 1499 | */
|
---|
| 1500 | /* Pick the best error code. */
|
---|
| 1501 | for (uint32_t i = 0; rc == VERR_FILE_NOT_FOUND && i < RT_ELEMENTS(aKernels); i++)
|
---|
| 1502 | if (aKernels[i].rc != VERR_FILE_NOT_FOUND)
|
---|
| 1503 | rc = aKernels[i].rc;
|
---|
| 1504 |
|
---|
| 1505 | /* Bitch about it. */
|
---|
| 1506 | printf("RTR0DbgKrnlInfoOpen: failed to find matching kernel file! rc=%d\n", rc);
|
---|
| 1507 | if (s_fFirstCall)
|
---|
| 1508 | {
|
---|
| 1509 | for (uint32_t i = 0; i < RT_ELEMENTS(aKernels); i++)
|
---|
| 1510 | printf("RTR0DbgKrnlInfoOpen: '%s' -> %d\n", aKernels[i].pszLocation, aKernels[i].rc);
|
---|
| 1511 | s_fFirstCall = false;
|
---|
| 1512 | }
|
---|
| 1513 |
|
---|
| 1514 | return rc;
|
---|
| 1515 | }
|
---|
| 1516 |
|
---|
| 1517 |
|
---|
[40856] | 1518 | RTR0DECL(uint32_t) RTR0DbgKrnlInfoRetain(RTDBGKRNLINFO hKrnlInfo)
|
---|
[37573] | 1519 | {
|
---|
[40856] | 1520 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
| 1521 | AssertPtrReturn(pThis, UINT32_MAX);
|
---|
| 1522 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), UINT32_MAX);
|
---|
[37573] | 1523 |
|
---|
[40856] | 1524 | uint32_t cRefs = ASMAtomicIncU32(&pThis->cRefs);
|
---|
| 1525 | Assert(cRefs && cRefs < 100000);
|
---|
| 1526 | return cRefs;
|
---|
[37573] | 1527 | }
|
---|
| 1528 |
|
---|
| 1529 |
|
---|
[40856] | 1530 | RTR0DECL(uint32_t) RTR0DbgKrnlInfoRelease(RTDBGKRNLINFO hKrnlInfo)
|
---|
[37573] | 1531 | {
|
---|
[40856] | 1532 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
| 1533 | if (pThis == NIL_RTDBGKRNLINFO)
|
---|
| 1534 | return 0;
|
---|
| 1535 | AssertPtrReturn(pThis, UINT32_MAX);
|
---|
| 1536 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), UINT32_MAX);
|
---|
[37573] | 1537 |
|
---|
[40856] | 1538 | uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs);
|
---|
| 1539 | if (cRefs == 0)
|
---|
| 1540 | rtR0DbgKrnlDarwinDtor(pThis);
|
---|
| 1541 | return cRefs;
|
---|
| 1542 | }
|
---|
| 1543 |
|
---|
| 1544 |
|
---|
[58800] | 1545 | RTR0DECL(int) RTR0DbgKrnlInfoQueryMember(RTDBGKRNLINFO hKrnlInfo, const char *pszModule, const char *pszStructure,
|
---|
[40856] | 1546 | const char *pszMember, size_t *poffMember)
|
---|
| 1547 | {
|
---|
| 1548 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
[37573] | 1549 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
[40856] | 1550 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
|
---|
[63451] | 1551 | AssertPtrReturn(pszMember, VERR_INVALID_POINTER);
|
---|
| 1552 | AssertPtrReturn(pszModule, VERR_INVALID_POINTER);
|
---|
| 1553 | AssertPtrReturn(pszStructure, VERR_INVALID_POINTER);
|
---|
| 1554 | AssertPtrReturn(poffMember, VERR_INVALID_POINTER);
|
---|
[40856] | 1555 | return VERR_NOT_FOUND;
|
---|
| 1556 | }
|
---|
[37573] | 1557 |
|
---|
| 1558 |
|
---|
[40856] | 1559 | RTR0DECL(int) RTR0DbgKrnlInfoQuerySymbol(RTDBGKRNLINFO hKrnlInfo, const char *pszModule,
|
---|
| 1560 | const char *pszSymbol, void **ppvSymbol)
|
---|
| 1561 | {
|
---|
| 1562 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
| 1563 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
| 1564 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
|
---|
| 1565 | AssertPtrReturn(pszSymbol, VERR_INVALID_PARAMETER);
|
---|
| 1566 | AssertPtrNullReturn(ppvSymbol, VERR_INVALID_PARAMETER);
|
---|
| 1567 | AssertReturn(!pszModule, VERR_MODULE_NOT_FOUND);
|
---|
[37573] | 1568 |
|
---|
[40856] | 1569 | uintptr_t uValue = rtR0DbgKrnlDarwinLookup(pThis, pszSymbol);
|
---|
| 1570 | if (ppvSymbol)
|
---|
| 1571 | *ppvSymbol = (void *)uValue;
|
---|
| 1572 | if (uValue)
|
---|
| 1573 | return VINF_SUCCESS;
|
---|
| 1574 | return VERR_SYMBOL_NOT_FOUND;
|
---|
[37573] | 1575 | }
|
---|
| 1576 |
|
---|