[37560] | 1 | /* $Id: dbgkrnlinfo-r0drv-darwin.cpp 93115 2022-01-01 11:31:46Z 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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[93115] | 7 | * Copyright (C) 2011-2022 Oracle Corporation
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[37560] | 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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[57358] | 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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[37560] | 31 | #ifdef IN_RING0
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| 32 | # include "the-darwin-kernel.h"
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[37565] | 33 | # include <sys/kauth.h>
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| 34 | RT_C_DECLS_BEGIN /* Buggy 10.4 headers, fixed in 10.5. */
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[85341] | 35 | # if MAC_OS_X_VERSION_MIN_REQUIRED < 101500
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| 36 | # include <sys/kpi_mbuf.h>
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| 37 | # include <net/kpi_interfacefilter.h>
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| 38 | # include <sys/kpi_socket.h>
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| 39 | # endif
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[37575] | 40 | # include <sys/kpi_socketfilter.h>
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[37565] | 41 | RT_C_DECLS_END
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[37575] | 42 | # include <sys/buf.h>
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| 43 | # include <sys/vm.h>
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| 44 | # include <sys/vnode_if.h>
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| 45 | /*# include <sys/sysctl.h>*/
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| 46 | # include <sys/systm.h>
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| 47 | # include <vfs/vfs_support.h>
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| 48 | /*# include <miscfs/specfs/specdev.h>*/
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[58598] | 49 | #else
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| 50 | # include <stdio.h> /* for printf */
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[37560] | 51 | #endif
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| 52 |
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[69662] | 53 | #if !defined(IN_RING0) && !defined(DOXYGEN_RUNNING) /* A linking tweak for the testcase: */
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[69643] | 54 | # include <iprt/cdefs.h>
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| 55 | # undef RTR0DECL
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| 56 | # define RTR0DECL(type) DECLHIDDEN(type) RTCALL
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| 57 | #endif
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| 58 |
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[37573] | 59 | #include "internal/iprt.h"
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[40856] | 60 | #include <iprt/dbg.h>
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[37573] | 61 |
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[37560] | 62 | #include <iprt/asm.h>
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| 63 | #include <iprt/assert.h>
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| 64 | #include <iprt/err.h>
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| 65 | #include <iprt/assert.h>
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| 66 | #include <iprt/file.h>
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[37561] | 67 | #include <iprt/log.h>
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[37560] | 68 | #include <iprt/mem.h>
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| 69 | #include <iprt/string.h>
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[48905] | 70 | #include <iprt/formats/mach-o.h>
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[40856] | 71 | #include "internal/magics.h"
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[37560] | 72 |
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| 73 | /** @def MY_CPU_TYPE
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| 74 | * The CPU type targeted by the compiler. */
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| 75 | /** @def MY_CPU_TYPE
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| 76 | * The "ALL" CPU subtype targeted by the compiler. */
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| 77 | /** @def MY_MACHO_HEADER
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| 78 | * The Mach-O header targeted by the compiler. */
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| 79 | /** @def MY_MACHO_MAGIC
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| 80 | * The Mach-O header magic we're targeting. */
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| 81 | /** @def MY_SEGMENT_COMMAND
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| 82 | * The segment command targeted by the compiler. */
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| 83 | /** @def MY_SECTION
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| 84 | * The section struture targeted by the compiler. */
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| 85 | /** @def MY_NLIST
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| 86 | * The symbol table entry targeted by the compiler. */
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| 87 | #ifdef RT_ARCH_X86
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| 88 | # define MY_CPU_TYPE CPU_TYPE_I386
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| 89 | # define MY_CPU_SUBTYPE_ALL CPU_SUBTYPE_I386_ALL
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| 90 | # define MY_MACHO_HEADER mach_header_32_t
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| 91 | # define MY_MACHO_MAGIC IMAGE_MACHO32_SIGNATURE
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| 92 | # define MY_SEGMENT_COMMAND segment_command_32_t
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| 93 | # define MY_SECTION section_32_t
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| 94 | # define MY_NLIST macho_nlist_32_t
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| 95 |
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| 96 | #elif defined(RT_ARCH_AMD64)
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| 97 | # define MY_CPU_TYPE CPU_TYPE_X86_64
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| 98 | # define MY_CPU_SUBTYPE_ALL CPU_SUBTYPE_X86_64_ALL
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| 99 | # define MY_MACHO_HEADER mach_header_64_t
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| 100 | # define MY_MACHO_MAGIC IMAGE_MACHO64_SIGNATURE
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| 101 | # define MY_SEGMENT_COMMAND segment_command_64_t
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| 102 | # define MY_SECTION section_64_t
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| 103 | # define MY_NLIST macho_nlist_64_t
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| 104 |
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[87146] | 105 | #elif defined(RT_ARCH_ARM64)
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| 106 | # define MY_CPU_TYPE CPU_TYPE_ARM64
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| 107 | # define MY_CPU_SUBTYPE_ALL CPU_SUBTYPE_ARM64_ALL
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| 108 | # define MY_MACHO_HEADER mach_header_64_t
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| 109 | # define MY_MACHO_MAGIC IMAGE_MACHO64_SIGNATURE
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| 110 | # define MY_SEGMENT_COMMAND segment_command_64_t
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| 111 | # define MY_SECTION section_64_t
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| 112 | # define MY_NLIST macho_nlist_64_t
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| 113 |
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[37560] | 114 | #else
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| 115 | # error "Port me!"
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| 116 | #endif
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| 117 |
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| 118 | /** @name Return macros for make it simpler to track down too paranoid code.
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| 119 | * @{
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| 120 | */
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| 121 | #ifdef DEBUG
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| 122 | # define RETURN_VERR_BAD_EXE_FORMAT \
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| 123 | do { Assert(!g_fBreakpointOnError); return VERR_BAD_EXE_FORMAT; } while (0)
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| 124 | # define RETURN_VERR_LDR_UNEXPECTED \
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| 125 | do { Assert(!g_fBreakpointOnError); return VERR_LDR_UNEXPECTED; } while (0)
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| 126 | # define RETURN_VERR_LDR_ARCH_MISMATCH \
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| 127 | do { Assert(!g_fBreakpointOnError); return VERR_LDR_ARCH_MISMATCH; } while (0)
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| 128 | #else
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| 129 | # define RETURN_VERR_BAD_EXE_FORMAT do { return VERR_BAD_EXE_FORMAT; } while (0)
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| 130 | # define RETURN_VERR_LDR_UNEXPECTED do { return VERR_LDR_UNEXPECTED; } while (0)
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| 131 | # define RETURN_VERR_LDR_ARCH_MISMATCH do { return VERR_LDR_ARCH_MISMATCH; } while (0)
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| 132 | #endif
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[82806] | 133 | #if defined(DEBUG_bird) && !defined(IN_RING3)
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| 134 | # define LOG_MISMATCH(...) kprintf(__VA_ARGS__)
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| 135 | # define LOG_NOT_PRESENT(...) kprintf(__VA_ARGS__)
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| 136 | # define LOG_BAD_SYM(...) kprintf(__VA_ARGS__)
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| 137 | # define LOG_SUCCESS(...) kprintf(__VA_ARGS__)
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| 138 | #else
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| 139 | # define LOG_MISMATCH(...) Log((__VA_ARGS__))
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| 140 | # define LOG_NOT_PRESENT(...) Log((__VA_ARGS__))
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| 141 | # define LOG_BAD_SYM(...) printf(__VA_ARGS__)
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| 142 | # define LOG_SUCCESS(...) printf(__VA_ARGS__)
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| 143 | #endif
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[37560] | 144 | /** @} */
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| 145 |
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| 146 | #define VERR_LDR_UNEXPECTED (-641)
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| 147 |
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[69643] | 148 | #ifndef RT_OS_DARWIN
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| 149 | # define MAC_OS_X_VERSION_MIN_REQUIRED 1050
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| 150 | #endif
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[37560] | 151 |
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[69643] | 152 |
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[57358] | 153 | /*********************************************************************************************************************************
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| 154 | * Structures and Typedefs *
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| 155 | *********************************************************************************************************************************/
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[37560] | 156 | /**
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| 157 | * Our internal representation of the mach_kernel after loading it's symbols
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| 158 | * and successfully resolving their addresses.
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| 159 | */
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[40856] | 160 | typedef struct RTDBGKRNLINFOINT
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[37560] | 161 | {
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[40856] | 162 | /** Magic value (RTDBGKRNLINFO_MAGIC). */
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| 163 | uint32_t u32Magic;
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| 164 | /** Reference counter. */
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| 165 | uint32_t volatile cRefs;
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| 166 |
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[82806] | 167 | /** Set if this is an in-memory rather than on-disk instance. */
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| 168 | bool fIsInMem;
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| 169 | bool afAlignment[7];
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| 170 |
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[37560] | 171 | /** @name Result.
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| 172 | * @{ */
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| 173 | /** Pointer to the string table. */
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| 174 | char *pachStrTab;
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| 175 | /** The size of the string table. */
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| 176 | uint32_t cbStrTab;
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| 177 | /** The file offset of the string table. */
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| 178 | uint32_t offStrTab;
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[82806] | 179 | /** The link address of the string table. */
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| 180 | uintptr_t uStrTabLinkAddr;
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[37560] | 181 | /** Pointer to the symbol table. */
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| 182 | MY_NLIST *paSyms;
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| 183 | /** The size of the symbol table. */
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| 184 | uint32_t cSyms;
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| 185 | /** The file offset of the symbol table. */
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| 186 | uint32_t offSyms;
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[82806] | 187 | /** The link address of the symbol table. */
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| 188 | uintptr_t uSymTabLinkAddr;
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| 189 | /** The link address of the text segment. */
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| 190 | uintptr_t uTextSegLinkAddr;
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| 191 | /** Size of the text segment. */
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| 192 | uintptr_t cbTextSeg;
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[86290] | 193 | /** Offset between link address and actual load address of the text segment. */
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[41052] | 194 | uintptr_t offLoad;
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[82806] | 195 | /** The minimum OS version (A.B.C; A is 16 bits, B & C each 8 bits). */
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| 196 | uint32_t uMinOsVer;
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| 197 | /** The SDK version (A.B.C; A is 16 bits, B & C each 8 bits). */
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| 198 | uint32_t uSdkVer;
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| 199 | /** The source version (A.B.C.D.E; A is 24 bits, the rest 10 each). */
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| 200 | uint64_t uSrcVer;
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[37560] | 201 | /** @} */
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| 202 |
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| 203 | /** @name Used during loading.
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| 204 | * @{ */
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| 205 | /** The file handle. */
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| 206 | RTFILE hFile;
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| 207 | /** The architecture image offset (fat_arch_t::offset). */
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| 208 | uint64_t offArch;
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| 209 | /** The architecture image size (fat_arch_t::size). */
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| 210 | uint32_t cbArch;
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| 211 | /** The number of load commands (mach_header_XX_t::ncmds). */
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| 212 | uint32_t cLoadCmds;
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| 213 | /** The size of the load commands. */
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| 214 | uint32_t cbLoadCmds;
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| 215 | /** The load commands. */
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| 216 | load_command_t *pLoadCmds;
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[82806] | 217 | /** The number of segments. */
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| 218 | uint32_t cSegments;
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| 219 | /** The number of sections. */
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| 220 | uint32_t cSections;
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[37560] | 221 | /** Section pointer table (points into the load commands). */
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[82806] | 222 | MY_SEGMENT_COMMAND const *apSegments[MACHO_MAX_SECT / 2];
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[86290] | 223 | /** Load displacement table for each segment. */
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| 224 | uintptr_t aoffLoadSegments[MACHO_MAX_SECT / 2];
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[82806] | 225 | /** Section pointer table (points into the load commands). */
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[37560] | 226 | MY_SECTION const *apSections[MACHO_MAX_SECT];
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[86290] | 227 | /** Mapping table to quickly get to a segment from MY_NLIST::n_sect. */
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| 228 | uint8_t auSections2Segment[MACHO_MAX_SECT];
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[37560] | 229 | /** @} */
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| 230 |
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| 231 | /** Buffer space. */
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| 232 | char abBuf[_4K];
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[40856] | 233 | } RTDBGKRNLINFOINT;
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[37560] | 234 |
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| 235 |
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[57358] | 236 | /*********************************************************************************************************************************
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| 237 | * Structures and Typedefs *
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| 238 | *********************************************************************************************************************************/
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[37560] | 239 | #ifdef DEBUG
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[37573] | 240 | static bool g_fBreakpointOnError = false;
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[37560] | 241 | #endif
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| 242 |
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| 243 |
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[37569] | 244 | /**
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[37560] | 245 | * Close and free up resources we no longer needs.
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| 246 | *
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[37573] | 247 | * @param pThis The internal scratch data.
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[37560] | 248 | */
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[40856] | 249 | static void rtR0DbgKrnlDarwinLoadDone(RTDBGKRNLINFOINT *pThis)
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[37560] | 250 | {
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[82806] | 251 | if (!pThis->fIsInMem)
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| 252 | RTFileClose(pThis->hFile);
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[37573] | 253 | pThis->hFile = NIL_RTFILE;
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[37560] | 254 |
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[82806] | 255 | if (!pThis->fIsInMem)
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| 256 | RTMemFree(pThis->pLoadCmds);
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[37573] | 257 | pThis->pLoadCmds = NULL;
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[82806] | 258 | RT_ZERO(pThis->apSections);
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| 259 | RT_ZERO(pThis->apSegments);
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[37560] | 260 | }
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| 261 |
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| 262 |
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| 263 | /**
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[86290] | 264 | * Looks up a kernel symbol record.
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[37560] | 265 | *
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[86290] | 266 | * @returns Pointer to the symbol record or NULL if not found.
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[37573] | 267 | * @param pThis The internal scratch data.
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[37560] | 268 | * @param pszSymbol The symbol to resolve. Automatically prefixed
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| 269 | * with an underscore.
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| 270 | */
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[86290] | 271 | static MY_NLIST const *rtR0DbgKrnlDarwinLookupSym(RTDBGKRNLINFOINT *pThis, const char *pszSymbol)
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[37560] | 272 | {
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[37573] | 273 | uint32_t const cSyms = pThis->cSyms;
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| 274 | MY_NLIST const *pSym = pThis->paSyms;
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[37560] | 275 |
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| 276 | #if 1
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| 277 | /* linear search. */
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| 278 | for (uint32_t iSym = 0; iSym < cSyms; iSym++, pSym++)
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| 279 | {
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| 280 | if (pSym->n_type & MACHO_N_STAB)
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| 281 | continue;
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[37562] | 282 |
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[37573] | 283 | const char *pszTabName= &pThis->pachStrTab[(uint32_t)pSym->n_un.n_strx];
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[37562] | 284 | if ( *pszTabName == '_'
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| 285 | && strcmp(pszTabName + 1, pszSymbol) == 0)
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[86290] | 286 | return pSym;
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[37560] | 287 | }
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| 288 | #else
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| 289 | /** @todo binary search. */
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[86290] | 290 | #endif
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[37560] | 291 |
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[86290] | 292 | return NULL;
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| 293 | }
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| 294 |
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| 295 |
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| 296 | /**
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| 297 | * Looks up a kernel symbol.
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| 298 | *
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| 299 | * @returns The symbol address on success, 0 on failure.
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| 300 | * @param pThis The internal scratch data.
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| 301 | * @param pszSymbol The symbol to resolve. Automatically prefixed
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| 302 | * with an underscore.
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| 303 | */
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| 304 | static uintptr_t rtR0DbgKrnlDarwinLookup(RTDBGKRNLINFOINT *pThis, const char *pszSymbol)
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| 305 | {
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| 306 | MY_NLIST const *pSym = rtR0DbgKrnlDarwinLookupSym(pThis, pszSymbol);
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| 307 | if (pSym)
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| 308 | {
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| 309 | uint8_t idxSeg = pThis->auSections2Segment[pSym->n_sect];
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| 310 | if (pThis->aoffLoadSegments[idxSeg] != UINTPTR_MAX)
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| 311 | return pSym->n_value + pThis->aoffLoadSegments[idxSeg];
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| 312 | }
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| 313 |
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[37560] | 314 | return 0;
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| 315 | }
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| 316 |
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| 317 |
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[37566] | 318 | /* Rainy day: Find the right headers for these symbols ... if there are any. */
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[37565] | 319 | extern "C" void ev_try_lock(void);
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| 320 | extern "C" void OSMalloc(void);
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| 321 | extern "C" void OSlibkernInit(void);
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| 322 | extern "C" void kdp_set_interface(void);
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[37562] | 323 |
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[37566] | 324 |
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[86305] | 325 | /*
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| 326 | * Determine the load displacement (10.8 kernels are PIE).
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| 327 | *
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| 328 | * Starting with 11.0 (BigSur) all segments can have different load displacements
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| 329 | * so determine the displacements from known symbols.
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| 330 | *
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| 331 | * @returns IPRT status code
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| 332 | * @param pThis The internal scratch data.
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| 333 | */
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| 334 | static int rtR0DbgKrnlDarwinInitLoadDisplacements(RTDBGKRNLINFOINT *pThis)
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| 335 | {
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| 336 | static struct
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| 337 | {
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| 338 | const char *pszName;
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| 339 | uintptr_t uAddr;
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| 340 | } const s_aStandardSyms[] =
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| 341 | {
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| 342 | #ifdef IN_RING0
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| 343 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, (uintptr_t)&a_Sym }
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| 344 | #else
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| 345 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, 0 }
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| 346 | #endif
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| 347 | KNOWN_ENTRY(vm_map_unwire), /* __TEXT */
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| 348 | KNOWN_ENTRY(kernel_map), /* __HIB */
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[86578] | 349 | KNOWN_ENTRY(gIOServicePlane), /* __DATA (__HIB on ElCapitan) */
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| 350 | KNOWN_ENTRY(page_mask) /* __DATA on ElCapitan */
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[86305] | 351 | #undef KNOWN_ENTRY
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| 352 | };
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| 353 |
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| 354 | for (unsigned i = 0; i < RT_ELEMENTS(s_aStandardSyms); i++)
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| 355 | {
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| 356 | MY_NLIST const *pSym = rtR0DbgKrnlDarwinLookupSym(pThis, s_aStandardSyms[i].pszName);
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| 357 | if (RT_UNLIKELY(!pSym))
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| 358 | return VERR_INTERNAL_ERROR_2;
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| 359 |
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| 360 | uint8_t idxSeg = pThis->auSections2Segment[pSym->n_sect];
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| 361 | #ifdef IN_RING0
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| 362 | /*
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| 363 | * The segment should either not have the load displacement determined or it should
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| 364 | * be the same for all symbols in the same segment.
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| 365 | */
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| 366 | if ( pThis->aoffLoadSegments[idxSeg] != UINTPTR_MAX
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| 367 | && pThis->aoffLoadSegments[idxSeg] != s_aStandardSyms[i].uAddr - pSym->n_value)
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| 368 | return VERR_INTERNAL_ERROR_2;
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| 369 |
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| 370 | pThis->aoffLoadSegments[idxSeg] = s_aStandardSyms[i].uAddr - pSym->n_value;
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| 371 | #elif defined(IN_RING3)
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| 372 | pThis->aoffLoadSegments[idxSeg] = 0;
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| 373 | #else
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| 374 | # error "Either IN_RING0 or IN_RING3 msut be defined"
|
---|
| 375 | #endif
|
---|
| 376 | }
|
---|
| 377 |
|
---|
| 378 | return VINF_SUCCESS;
|
---|
| 379 | }
|
---|
| 380 |
|
---|
| 381 |
|
---|
[37566] | 382 | /**
|
---|
[37569] | 383 | * Check the symbol table against symbols we known symbols.
|
---|
| 384 | *
|
---|
| 385 | * This is done to detect whether the on disk image and the in
|
---|
| 386 | * memory images matches. Mismatches could stem from user
|
---|
[37566] | 387 | * replacing the default kernel image on disk.
|
---|
[37569] | 388 | *
|
---|
[37566] | 389 | * @returns IPRT status code.
|
---|
[37573] | 390 | * @param pThis The internal scratch data.
|
---|
[82806] | 391 | * @param pszKernelFile The name of the kernel file.
|
---|
[37566] | 392 | */
|
---|
[82806] | 393 | static int rtR0DbgKrnlDarwinCheckStandardSymbols(RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
[37560] | 394 | {
|
---|
| 395 | static struct
|
---|
| 396 | {
|
---|
| 397 | const char *pszName;
|
---|
| 398 | uintptr_t uAddr;
|
---|
| 399 | } const s_aStandardCandles[] =
|
---|
| 400 | {
|
---|
[37562] | 401 | #ifdef IN_RING0
|
---|
[37560] | 402 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, (uintptr_t)&a_Sym }
|
---|
| 403 | #else
|
---|
| 404 | # define KNOWN_ENTRY(a_Sym) { #a_Sym, 0 }
|
---|
| 405 | #endif
|
---|
[37565] | 406 | /* IOKit: */
|
---|
[37562] | 407 | KNOWN_ENTRY(IOMalloc),
|
---|
[37560] | 408 | KNOWN_ENTRY(IOFree),
|
---|
[37565] | 409 | KNOWN_ENTRY(IOSleep),
|
---|
| 410 | KNOWN_ENTRY(IORWLockAlloc),
|
---|
| 411 | KNOWN_ENTRY(IORecursiveLockLock),
|
---|
| 412 | KNOWN_ENTRY(IOSimpleLockAlloc),
|
---|
| 413 | KNOWN_ENTRY(PE_cpu_halt),
|
---|
| 414 | KNOWN_ENTRY(gIOKitDebug),
|
---|
| 415 | KNOWN_ENTRY(gIOServicePlane),
|
---|
| 416 | KNOWN_ENTRY(ev_try_lock),
|
---|
| 417 |
|
---|
| 418 | /* Libkern: */
|
---|
| 419 | KNOWN_ENTRY(OSAddAtomic),
|
---|
| 420 | KNOWN_ENTRY(OSBitAndAtomic),
|
---|
| 421 | KNOWN_ENTRY(OSBitOrAtomic),
|
---|
| 422 | KNOWN_ENTRY(OSBitXorAtomic),
|
---|
| 423 | KNOWN_ENTRY(OSCompareAndSwap),
|
---|
| 424 | KNOWN_ENTRY(OSMalloc),
|
---|
| 425 | KNOWN_ENTRY(OSlibkernInit),
|
---|
| 426 | KNOWN_ENTRY(bcmp),
|
---|
| 427 | KNOWN_ENTRY(copyout),
|
---|
| 428 | KNOWN_ENTRY(copyin),
|
---|
| 429 | KNOWN_ENTRY(kprintf),
|
---|
| 430 | KNOWN_ENTRY(printf),
|
---|
| 431 | KNOWN_ENTRY(lck_grp_alloc_init),
|
---|
| 432 | KNOWN_ENTRY(lck_mtx_alloc_init),
|
---|
| 433 | KNOWN_ENTRY(lck_rw_alloc_init),
|
---|
| 434 | KNOWN_ENTRY(lck_spin_alloc_init),
|
---|
| 435 | KNOWN_ENTRY(osrelease),
|
---|
| 436 | KNOWN_ENTRY(ostype),
|
---|
| 437 | KNOWN_ENTRY(panic),
|
---|
| 438 | KNOWN_ENTRY(strprefix),
|
---|
[56699] | 439 | //KNOWN_ENTRY(sysctlbyname), - we get kernel_sysctlbyname from the 10.10+ kernels.
|
---|
[37565] | 440 | KNOWN_ENTRY(vsscanf),
|
---|
| 441 | KNOWN_ENTRY(page_mask),
|
---|
| 442 |
|
---|
| 443 | /* Mach: */
|
---|
| 444 | KNOWN_ENTRY(absolutetime_to_nanoseconds),
|
---|
| 445 | KNOWN_ENTRY(assert_wait),
|
---|
| 446 | KNOWN_ENTRY(clock_delay_until),
|
---|
| 447 | KNOWN_ENTRY(clock_get_uptime),
|
---|
| 448 | KNOWN_ENTRY(current_task),
|
---|
| 449 | KNOWN_ENTRY(current_thread),
|
---|
| 450 | KNOWN_ENTRY(kernel_task),
|
---|
| 451 | KNOWN_ENTRY(lck_mtx_sleep),
|
---|
| 452 | KNOWN_ENTRY(lck_rw_sleep),
|
---|
| 453 | KNOWN_ENTRY(lck_spin_sleep),
|
---|
| 454 | KNOWN_ENTRY(mach_absolute_time),
|
---|
| 455 | KNOWN_ENTRY(semaphore_create),
|
---|
| 456 | KNOWN_ENTRY(task_reference),
|
---|
| 457 | KNOWN_ENTRY(thread_block),
|
---|
| 458 | KNOWN_ENTRY(thread_reference),
|
---|
| 459 | KNOWN_ENTRY(thread_terminate),
|
---|
| 460 | KNOWN_ENTRY(thread_wakeup_prim),
|
---|
| 461 |
|
---|
| 462 | /* BSDKernel: */
|
---|
[37575] | 463 | KNOWN_ENTRY(buf_size),
|
---|
[37565] | 464 | KNOWN_ENTRY(copystr),
|
---|
[37575] | 465 | KNOWN_ENTRY(current_proc),
|
---|
[37565] | 466 | KNOWN_ENTRY(kauth_getuid),
|
---|
| 467 | #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
|
---|
| 468 | KNOWN_ENTRY(kauth_cred_unref),
|
---|
[37569] | 469 | #else
|
---|
[37565] | 470 | KNOWN_ENTRY(kauth_cred_rele),
|
---|
| 471 | #endif
|
---|
| 472 | KNOWN_ENTRY(msleep),
|
---|
| 473 | KNOWN_ENTRY(nanotime),
|
---|
[37575] | 474 | KNOWN_ENTRY(nop_close),
|
---|
[37565] | 475 | KNOWN_ENTRY(proc_pid),
|
---|
[85340] | 476 | #if MAC_OS_X_VERSION_MIN_REQUIRED < 101500
|
---|
[85341] | 477 | KNOWN_ENTRY(mbuf_data),
|
---|
| 478 | KNOWN_ENTRY(ifnet_hdrlen),
|
---|
| 479 | KNOWN_ENTRY(ifnet_set_promiscuous),
|
---|
[37575] | 480 | KNOWN_ENTRY(sock_accept),
|
---|
| 481 | KNOWN_ENTRY(sockopt_name),
|
---|
[85340] | 482 | #endif
|
---|
[37565] | 483 | //KNOWN_ENTRY(spec_write),
|
---|
[37575] | 484 | KNOWN_ENTRY(suword),
|
---|
[37565] | 485 | //KNOWN_ENTRY(sysctl_int),
|
---|
| 486 | KNOWN_ENTRY(uio_rw),
|
---|
[37575] | 487 | KNOWN_ENTRY(vfs_flags),
|
---|
| 488 | KNOWN_ENTRY(vfs_name),
|
---|
| 489 | KNOWN_ENTRY(vfs_statfs),
|
---|
[37578] | 490 | KNOWN_ENTRY(VNOP_READ),
|
---|
| 491 | KNOWN_ENTRY(uio_create),
|
---|
| 492 | KNOWN_ENTRY(uio_addiov),
|
---|
| 493 | KNOWN_ENTRY(uio_free),
|
---|
[37575] | 494 | KNOWN_ENTRY(vnode_get),
|
---|
| 495 | KNOWN_ENTRY(vnode_open),
|
---|
| 496 | KNOWN_ENTRY(vnode_ref),
|
---|
| 497 | KNOWN_ENTRY(vnode_rele),
|
---|
| 498 | KNOWN_ENTRY(vnop_close_desc),
|
---|
[37565] | 499 | KNOWN_ENTRY(wakeup),
|
---|
| 500 | KNOWN_ENTRY(wakeup_one),
|
---|
| 501 |
|
---|
| 502 | /* Unsupported: */
|
---|
| 503 | KNOWN_ENTRY(kdp_set_interface),
|
---|
| 504 | KNOWN_ENTRY(pmap_find_phys),
|
---|
| 505 | KNOWN_ENTRY(vm_map),
|
---|
| 506 | KNOWN_ENTRY(vm_protect),
|
---|
| 507 | KNOWN_ENTRY(vm_region),
|
---|
[56699] | 508 | KNOWN_ENTRY(vm_map_unwire), /* vm_map_wire has an alternative symbol, vm_map_wire_external, in 10.11 */
|
---|
[37565] | 509 | KNOWN_ENTRY(PE_kputc),
|
---|
[41052] | 510 | KNOWN_ENTRY(kernel_map),
|
---|
| 511 | KNOWN_ENTRY(kernel_pmap),
|
---|
[86305] | 512 | #undef KNOWN_ENTRY
|
---|
[37560] | 513 | };
|
---|
| 514 |
|
---|
| 515 | for (unsigned i = 0; i < RT_ELEMENTS(s_aStandardCandles); i++)
|
---|
| 516 | {
|
---|
[40856] | 517 | uintptr_t uAddr = rtR0DbgKrnlDarwinLookup(pThis, s_aStandardCandles[i].pszName);
|
---|
[37560] | 518 | #ifdef IN_RING0
|
---|
| 519 | if (uAddr != s_aStandardCandles[i].uAddr)
|
---|
| 520 | #else
|
---|
| 521 | if (uAddr == 0)
|
---|
| 522 | #endif
|
---|
| 523 | {
|
---|
[82806] | 524 | #if defined(IN_RING0) && defined(DEBUG_bird)
|
---|
| 525 | kprintf("RTR0DbgKrnlInfoOpen: error: %s (%p != %p) in %s\n",
|
---|
| 526 | s_aStandardCandles[i].pszName, (void *)uAddr, (void *)s_aStandardCandles[i].uAddr, pszKernelFile);
|
---|
| 527 | #endif
|
---|
| 528 | printf("RTR0DbgKrnlInfoOpen: error: %s (%p != %p) in %s\n",
|
---|
| 529 | s_aStandardCandles[i].pszName, (void *)uAddr, (void *)s_aStandardCandles[i].uAddr, pszKernelFile);
|
---|
[37560] | 530 | return VERR_INTERNAL_ERROR_2;
|
---|
| 531 | }
|
---|
| 532 | }
|
---|
| 533 | return VINF_SUCCESS;
|
---|
| 534 | }
|
---|
| 535 |
|
---|
| 536 |
|
---|
| 537 | /**
|
---|
| 538 | * Loads and validates the symbol and string tables.
|
---|
| 539 | *
|
---|
| 540 | * @returns IPRT status code.
|
---|
[37573] | 541 | * @param pThis The internal scratch data.
|
---|
[69648] | 542 | * @param pszKernelFile The name of the kernel file.
|
---|
[37560] | 543 | */
|
---|
[82806] | 544 | static int rtR0DbgKrnlDarwinParseSymTab(RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
[37560] | 545 | {
|
---|
| 546 | /*
|
---|
| 547 | * The first string table symbol must be a zero length name.
|
---|
| 548 | */
|
---|
[37573] | 549 | if (pThis->pachStrTab[0] != '\0')
|
---|
[37560] | 550 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 551 |
|
---|
| 552 | /*
|
---|
| 553 | * Validate the symbol table.
|
---|
| 554 | */
|
---|
| 555 | const char *pszPrev = "";
|
---|
[37573] | 556 | uint32_t const cSyms = pThis->cSyms;
|
---|
| 557 | MY_NLIST const *pSym = pThis->paSyms;
|
---|
[37560] | 558 | for (uint32_t iSym = 0; iSym < cSyms; iSym++, pSym++)
|
---|
| 559 | {
|
---|
[37573] | 560 | if ((uint32_t)pSym->n_un.n_strx >= pThis->cbStrTab)
|
---|
[69648] | 561 | {
|
---|
[82806] | 562 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u has a bad string table index: %#x vs cbStrTab=%#x\n",
|
---|
| 563 | pszKernelFile, iSym, pSym->n_un.n_strx, pThis->cbStrTab);
|
---|
[37560] | 564 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 565 | }
|
---|
[37573] | 566 | const char *pszSym = &pThis->pachStrTab[(uint32_t)pSym->n_un.n_strx];
|
---|
[37560] | 567 | #ifdef IN_RING3
|
---|
[41050] | 568 | 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] | 569 | #endif
|
---|
| 570 |
|
---|
| 571 | if (strcmp(pszSym, pszPrev) < 0)
|
---|
| 572 | RETURN_VERR_BAD_EXE_FORMAT; /* not sorted */
|
---|
| 573 |
|
---|
| 574 | if (!(pSym->n_type & MACHO_N_STAB))
|
---|
| 575 | {
|
---|
| 576 | switch (pSym->n_type & MACHO_N_TYPE)
|
---|
| 577 | {
|
---|
| 578 | case MACHO_N_SECT:
|
---|
| 579 | if (pSym->n_sect == MACHO_NO_SECT)
|
---|
[69648] | 580 | {
|
---|
[82806] | 581 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_sect = MACHO_NO_SECT\n",
|
---|
| 582 | pszKernelFile, iSym, pszSym);
|
---|
[37560] | 583 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 584 | }
|
---|
[37573] | 585 | if (pSym->n_sect > pThis->cSections)
|
---|
[69648] | 586 | {
|
---|
[82806] | 587 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_sect (%u) is higher than cSections (%u)\n",
|
---|
| 588 | pszKernelFile, iSym, pszSym, pSym->n_sect, pThis->cSections);
|
---|
[37560] | 589 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 590 | }
|
---|
[69647] | 591 | if (pSym->n_desc & ~(REFERENCED_DYNAMICALLY | N_WEAK_DEF))
|
---|
[69648] | 592 | {
|
---|
[82806] | 593 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: Unexpected value n_desc=%#x\n",
|
---|
| 594 | pszKernelFile, iSym, pszSym, pSym->n_desc);
|
---|
[37560] | 595 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 596 | }
|
---|
[41050] | 597 | if ( pSym->n_value < pThis->apSections[pSym->n_sect - 1]->addr
|
---|
| 598 | && strcmp(pszSym, "__mh_execute_header")) /* in 10.8 it's no longer absolute (PIE?). */
|
---|
[69648] | 599 | {
|
---|
[82806] | 600 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_value (%#llx) < section addr (%#llx)\n",
|
---|
[83845] | 601 | pszKernelFile, iSym, pszSym, (uint64_t)pSym->n_value,
|
---|
| 602 | (uint64_t)pThis->apSections[pSym->n_sect - 1]->addr);
|
---|
[37560] | 603 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 604 | }
|
---|
[41050] | 605 | if ( pSym->n_value - pThis->apSections[pSym->n_sect - 1]->addr
|
---|
| 606 | > pThis->apSections[pSym->n_sect - 1]->size
|
---|
| 607 | && strcmp(pszSym, "__mh_execute_header")) /* see above. */
|
---|
[69648] | 608 | {
|
---|
[82806] | 609 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Symbol #%u '%s' problem: n_value (%#llx) >= end of section (%#llx + %#llx)\n",
|
---|
[83845] | 610 | pszKernelFile, iSym, pszSym, (uint64_t)pSym->n_value,
|
---|
| 611 | (uint64_t)pThis->apSections[pSym->n_sect - 1]->addr,
|
---|
| 612 | (uint64_t)pThis->apSections[pSym->n_sect - 1]->size);
|
---|
[37560] | 613 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 614 | }
|
---|
[37560] | 615 | break;
|
---|
| 616 |
|
---|
| 617 | case MACHO_N_ABS:
|
---|
[41050] | 618 | if ( pSym->n_sect != MACHO_NO_SECT
|
---|
| 619 | && ( strcmp(pszSym, "__mh_execute_header") /* n_sect=1 in 10.7/amd64 */
|
---|
| 620 | || pSym->n_sect > pThis->cSections) )
|
---|
[69648] | 621 | {
|
---|
[82806] | 622 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Abs symbol #%u '%s' problem: n_sect (%u) is not MACHO_NO_SECT (cSections is %u)\n",
|
---|
| 623 | pszKernelFile, iSym, pszSym, pSym->n_sect, pThis->cSections);
|
---|
[37560] | 624 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 625 | }
|
---|
| 626 | if (pSym->n_desc & ~(REFERENCED_DYNAMICALLY | N_WEAK_DEF))
|
---|
| 627 | {
|
---|
[82806] | 628 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Abs symbol #%u '%s' problem: Unexpected value n_desc=%#x\n",
|
---|
| 629 | pszKernelFile, iSym, pszSym, pSym->n_desc);
|
---|
[37560] | 630 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[69648] | 631 | }
|
---|
[37560] | 632 | break;
|
---|
| 633 |
|
---|
| 634 | case MACHO_N_UNDF:
|
---|
| 635 | /* No undefined or common symbols in the kernel. */
|
---|
[82806] | 636 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected undefined symbol #%u '%s'\n", pszKernelFile, iSym, pszSym);
|
---|
[37560] | 637 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 638 |
|
---|
| 639 | case MACHO_N_INDR:
|
---|
| 640 | /* No indirect symbols in the kernel. */
|
---|
[82806] | 641 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected indirect symbol #%u '%s'\n", pszKernelFile, iSym, pszSym);
|
---|
[37560] | 642 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 643 |
|
---|
| 644 | case MACHO_N_PBUD:
|
---|
| 645 | /* No prebound symbols in the kernel. */
|
---|
[82806] | 646 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected prebound symbol #%u '%s'\n", pszKernelFile, iSym, pszSym);
|
---|
[37560] | 647 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 648 |
|
---|
| 649 | default:
|
---|
[82806] | 650 | LOG_BAD_SYM("RTR0DbgKrnlInfoOpen: %s: Unexpected symbol n_type %#x for symbol #%u '%s'\n",
|
---|
| 651 | pszKernelFile, pSym->n_type, iSym, pszSym);
|
---|
[37560] | 652 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 653 | }
|
---|
| 654 | }
|
---|
| 655 | /* else: Ignore debug symbols. */
|
---|
| 656 | }
|
---|
| 657 |
|
---|
| 658 | return VINF_SUCCESS;
|
---|
| 659 | }
|
---|
| 660 |
|
---|
| 661 |
|
---|
| 662 | /**
|
---|
[82806] | 663 | * Uses the segment table to translate a file offset into a virtual memory
|
---|
| 664 | * address.
|
---|
[37560] | 665 | *
|
---|
[82806] | 666 | * @returns The virtual memory address on success, 0 if not found.
|
---|
| 667 | * @param pThis The instance.
|
---|
| 668 | * @param offFile The file offset to translate.
|
---|
| 669 | */
|
---|
| 670 | static uintptr_t rtR0DbgKrnlDarwinFileOffToVirtAddr(RTDBGKRNLINFOINT *pThis, uint64_t offFile)
|
---|
| 671 | {
|
---|
| 672 | uint32_t iSeg = pThis->cSegments;
|
---|
| 673 | while (iSeg-- > 0)
|
---|
| 674 | {
|
---|
| 675 | uint64_t offSeg = offFile - pThis->apSegments[iSeg]->fileoff;
|
---|
| 676 | if (offSeg < pThis->apSegments[iSeg]->vmsize)
|
---|
| 677 | return pThis->apSegments[iSeg]->vmaddr + (uintptr_t)offSeg;
|
---|
| 678 | }
|
---|
| 679 | return 0;
|
---|
| 680 | }
|
---|
| 681 |
|
---|
| 682 |
|
---|
| 683 | /**
|
---|
| 684 | * Parses and validates the load commands.
|
---|
| 685 | *
|
---|
[37560] | 686 | * @returns IPRT status code.
|
---|
[37573] | 687 | * @param pThis The internal scratch data.
|
---|
[37560] | 688 | */
|
---|
[82806] | 689 | static int rtR0DbgKrnlDarwinParseCommands(RTDBGKRNLINFOINT *pThis)
|
---|
[37560] | 690 | {
|
---|
[82806] | 691 | Assert(pThis->pLoadCmds);
|
---|
[37560] | 692 |
|
---|
[82806] | 693 | /*
|
---|
| 694 | * Reset the state.
|
---|
| 695 | */
|
---|
| 696 | pThis->offStrTab = 0;
|
---|
| 697 | pThis->cbStrTab = 0;
|
---|
| 698 | pThis->offSyms = 0;
|
---|
| 699 | pThis->cSyms = 0;
|
---|
| 700 | pThis->cSections = 0;
|
---|
| 701 | pThis->uTextSegLinkAddr = 0;
|
---|
| 702 | pThis->cbTextSeg = 0;
|
---|
| 703 | pThis->uMinOsVer = 0;
|
---|
| 704 | pThis->uSdkVer = 0;
|
---|
| 705 | pThis->uSrcVer = 0;
|
---|
[37560] | 706 |
|
---|
| 707 | /*
|
---|
| 708 | * Validate the relevant commands, picking up sections and the symbol
|
---|
| 709 | * table location.
|
---|
| 710 | */
|
---|
[37573] | 711 | load_command_t const *pCmd = pThis->pLoadCmds;
|
---|
[37560] | 712 | for (uint32_t iCmd = 0; ; iCmd++)
|
---|
| 713 | {
|
---|
| 714 | /* cmd index & offset. */
|
---|
[37573] | 715 | uintptr_t offCmd = (uintptr_t)pCmd - (uintptr_t)pThis->pLoadCmds;
|
---|
| 716 | if (offCmd == pThis->cbLoadCmds && iCmd == pThis->cLoadCmds)
|
---|
[37560] | 717 | break;
|
---|
[37573] | 718 | if (offCmd + sizeof(*pCmd) > pThis->cbLoadCmds)
|
---|
[37560] | 719 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 720 | if (iCmd >= pThis->cLoadCmds)
|
---|
[37560] | 721 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 722 |
|
---|
| 723 | /* cmdsize */
|
---|
| 724 | if (pCmd->cmdsize < sizeof(*pCmd))
|
---|
| 725 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 726 | if (pCmd->cmdsize > pThis->cbLoadCmds)
|
---|
[37560] | 727 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 728 | if (RT_ALIGN_32(pCmd->cmdsize, 4) != pCmd->cmdsize)
|
---|
| 729 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 730 |
|
---|
| 731 | /* cmd */
|
---|
| 732 | switch (pCmd->cmd & ~LC_REQ_DYLD)
|
---|
| 733 | {
|
---|
| 734 | /* Validate and store the symbol table details. */
|
---|
| 735 | case LC_SYMTAB:
|
---|
| 736 | {
|
---|
| 737 | struct symtab_command const *pSymTab = (struct symtab_command const *)pCmd;
|
---|
| 738 | if (pSymTab->cmdsize != sizeof(*pSymTab))
|
---|
| 739 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 740 | if (pSymTab->nsyms > _1M)
|
---|
| 741 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 742 | if (pSymTab->strsize > _2M)
|
---|
| 743 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 744 |
|
---|
[37573] | 745 | pThis->offStrTab = pSymTab->stroff;
|
---|
| 746 | pThis->cbStrTab = pSymTab->strsize;
|
---|
| 747 | pThis->offSyms = pSymTab->symoff;
|
---|
| 748 | pThis->cSyms = pSymTab->nsyms;
|
---|
[37560] | 749 | break;
|
---|
| 750 | }
|
---|
| 751 |
|
---|
| 752 | /* Validate the segment. */
|
---|
| 753 | #if ARCH_BITS == 32
|
---|
| 754 | case LC_SEGMENT_32:
|
---|
| 755 | #elif ARCH_BITS == 64
|
---|
| 756 | case LC_SEGMENT_64:
|
---|
| 757 | #else
|
---|
| 758 | # error ARCH_BITS
|
---|
| 759 | #endif
|
---|
| 760 | {
|
---|
| 761 | MY_SEGMENT_COMMAND const *pSeg = (MY_SEGMENT_COMMAND const *)pCmd;
|
---|
| 762 | if (pSeg->cmdsize < sizeof(*pSeg))
|
---|
| 763 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 764 |
|
---|
| 765 | if (pSeg->segname[0] == '\0')
|
---|
| 766 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 767 |
|
---|
| 768 | if (pSeg->nsects > MACHO_MAX_SECT)
|
---|
| 769 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 770 | if (pSeg->nsects * sizeof(MY_SECTION) + sizeof(*pSeg) != pSeg->cmdsize)
|
---|
| 771 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 772 |
|
---|
| 773 | if (pSeg->flags & ~(SG_HIGHVM | SG_FVMLIB | SG_NORELOC | SG_PROTECTED_VERSION_1))
|
---|
| 774 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 775 |
|
---|
[43303] | 776 | if ( pSeg->vmaddr != 0
|
---|
| 777 | || !strcmp(pSeg->segname, "__PAGEZERO"))
|
---|
[37560] | 778 | {
|
---|
| 779 | if (pSeg->vmaddr + RT_ALIGN_Z(pSeg->vmsize, RT_BIT_32(12)) < pSeg->vmaddr)
|
---|
| 780 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 781 | }
|
---|
| 782 | else if (pSeg->vmsize)
|
---|
| 783 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 784 |
|
---|
| 785 | if (pSeg->maxprot & ~VM_PROT_ALL)
|
---|
| 786 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 787 | if (pSeg->initprot & ~VM_PROT_ALL)
|
---|
| 788 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 789 |
|
---|
| 790 | /* Validate the sections. */
|
---|
| 791 | uint32_t uAlignment = 0;
|
---|
| 792 | MY_SECTION const *paSects = (MY_SECTION const *)(pSeg + 1);
|
---|
| 793 | for (uint32_t i = 0; i < pSeg->nsects; i++)
|
---|
| 794 | {
|
---|
| 795 | if (paSects[i].sectname[0] == '\0')
|
---|
| 796 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 797 | if (memcmp(paSects[i].segname, pSeg->segname, sizeof(pSeg->segname)))
|
---|
| 798 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 799 |
|
---|
| 800 | switch (paSects[i].flags & SECTION_TYPE)
|
---|
| 801 | {
|
---|
| 802 | case S_REGULAR:
|
---|
| 803 | case S_CSTRING_LITERALS:
|
---|
| 804 | case S_NON_LAZY_SYMBOL_POINTERS:
|
---|
| 805 | case S_MOD_INIT_FUNC_POINTERS:
|
---|
| 806 | case S_MOD_TERM_FUNC_POINTERS:
|
---|
| 807 | case S_COALESCED:
|
---|
[43303] | 808 | case S_4BYTE_LITERALS:
|
---|
[37560] | 809 | if ( pSeg->filesize != 0
|
---|
| 810 | ? paSects[i].offset - pSeg->fileoff >= pSeg->filesize
|
---|
| 811 | : paSects[i].offset - pSeg->fileoff != pSeg->filesize)
|
---|
| 812 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 813 | if ( paSects[i].addr != 0
|
---|
| 814 | && paSects[i].offset - pSeg->fileoff != paSects[i].addr - pSeg->vmaddr)
|
---|
| 815 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 816 | break;
|
---|
| 817 |
|
---|
| 818 | case S_ZEROFILL:
|
---|
| 819 | if (paSects[i].offset != 0)
|
---|
| 820 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 821 | break;
|
---|
| 822 |
|
---|
| 823 | /* not observed */
|
---|
| 824 | case S_SYMBOL_STUBS:
|
---|
| 825 | case S_INTERPOSING:
|
---|
| 826 | case S_8BYTE_LITERALS:
|
---|
| 827 | case S_16BYTE_LITERALS:
|
---|
| 828 | case S_DTRACE_DOF:
|
---|
| 829 | case S_LAZY_SYMBOL_POINTERS:
|
---|
| 830 | case S_LAZY_DYLIB_SYMBOL_POINTERS:
|
---|
| 831 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 832 | case S_GB_ZEROFILL:
|
---|
| 833 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 834 | default:
|
---|
| 835 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 836 | }
|
---|
| 837 |
|
---|
| 838 | if (paSects[i].align > 12)
|
---|
| 839 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 840 | if (paSects[i].align > uAlignment)
|
---|
| 841 | uAlignment = paSects[i].align;
|
---|
| 842 |
|
---|
| 843 | /* Add to the section table. */
|
---|
[82806] | 844 | if (pThis->cSections >= RT_ELEMENTS(pThis->apSections))
|
---|
[37560] | 845 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[86290] | 846 | pThis->auSections2Segment[pThis->cSections] = pThis->cSegments;
|
---|
[37573] | 847 | pThis->apSections[pThis->cSections++] = &paSects[i];
|
---|
[37560] | 848 | }
|
---|
| 849 |
|
---|
| 850 | if (RT_ALIGN_Z(pSeg->vmaddr, RT_BIT_32(uAlignment)) != pSeg->vmaddr)
|
---|
| 851 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 852 | if ( pSeg->filesize > RT_ALIGN_Z(pSeg->vmsize, RT_BIT_32(uAlignment))
|
---|
| 853 | && pSeg->vmsize != 0)
|
---|
| 854 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[82806] | 855 |
|
---|
| 856 | /*
|
---|
| 857 | * Add to the segment table.
|
---|
| 858 | */
|
---|
| 859 | if (pThis->cSegments >= RT_ELEMENTS(pThis->apSegments))
|
---|
| 860 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 861 | pThis->apSegments[pThis->cSegments++] = pSeg;
|
---|
| 862 |
|
---|
| 863 | /*
|
---|
| 864 | * Take down the text segment size and link address (for in-mem variant):
|
---|
| 865 | */
|
---|
| 866 | if (!strcmp(pSeg->segname, "__TEXT"))
|
---|
| 867 | {
|
---|
| 868 | if (pThis->cbTextSeg != 0)
|
---|
| 869 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 870 | pThis->uTextSegLinkAddr = pSeg->vmaddr;
|
---|
| 871 | pThis->cbTextSeg = pSeg->vmsize;
|
---|
| 872 | }
|
---|
[37560] | 873 | break;
|
---|
| 874 | }
|
---|
| 875 |
|
---|
| 876 | case LC_UUID:
|
---|
| 877 | if (pCmd->cmdsize != sizeof(uuid_command))
|
---|
| 878 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 879 | break;
|
---|
| 880 |
|
---|
| 881 | case LC_DYSYMTAB:
|
---|
| 882 | case LC_UNIXTHREAD:
|
---|
[41050] | 883 | case LC_CODE_SIGNATURE:
|
---|
| 884 | case LC_VERSION_MIN_MACOSX:
|
---|
| 885 | case LC_FUNCTION_STARTS:
|
---|
| 886 | case LC_MAIN:
|
---|
| 887 | case LC_DATA_IN_CODE:
|
---|
[72691] | 888 | case LC_ENCRYPTION_INFO_64:
|
---|
| 889 | case LC_LINKER_OPTION:
|
---|
| 890 | case LC_LINKER_OPTIMIZATION_HINT:
|
---|
| 891 | case LC_VERSION_MIN_TVOS:
|
---|
| 892 | case LC_VERSION_MIN_WATCHOS:
|
---|
| 893 | case LC_NOTE:
|
---|
[86290] | 894 | case LC_SEGMENT_SPLIT_INFO:
|
---|
[82806] | 895 | break;
|
---|
| 896 |
|
---|
[72691] | 897 | case LC_BUILD_VERSION:
|
---|
[82806] | 898 | if (pCmd->cmdsize >= RT_UOFFSETOF(build_version_command_t, aTools))
|
---|
| 899 | {
|
---|
| 900 | build_version_command_t *pBldVerCmd = (build_version_command_t *)pCmd;
|
---|
| 901 | pThis->uMinOsVer = pBldVerCmd->minos;
|
---|
| 902 | pThis->uSdkVer = pBldVerCmd->sdk;
|
---|
| 903 | }
|
---|
[37560] | 904 | break;
|
---|
| 905 |
|
---|
[82806] | 906 | case LC_SOURCE_VERSION:
|
---|
| 907 | if (pCmd->cmdsize == sizeof(source_version_command_t))
|
---|
| 908 | {
|
---|
| 909 | source_version_command_t *pSrcVerCmd = (source_version_command_t *)pCmd;
|
---|
| 910 | pThis->uSrcVer = pSrcVerCmd->version;
|
---|
| 911 | }
|
---|
| 912 | break;
|
---|
| 913 |
|
---|
[37560] | 914 | /* not observed */
|
---|
| 915 | case LC_SYMSEG:
|
---|
| 916 | #if ARCH_BITS == 32
|
---|
| 917 | case LC_SEGMENT_64:
|
---|
| 918 | #elif ARCH_BITS == 64
|
---|
| 919 | case LC_SEGMENT_32:
|
---|
| 920 | #endif
|
---|
| 921 | case LC_ROUTINES_64:
|
---|
| 922 | case LC_ROUTINES:
|
---|
| 923 | case LC_THREAD:
|
---|
| 924 | case LC_LOADFVMLIB:
|
---|
| 925 | case LC_IDFVMLIB:
|
---|
| 926 | case LC_IDENT:
|
---|
| 927 | case LC_FVMFILE:
|
---|
| 928 | case LC_PREPAGE:
|
---|
| 929 | case LC_TWOLEVEL_HINTS:
|
---|
| 930 | case LC_PREBIND_CKSUM:
|
---|
[41050] | 931 | case LC_ENCRYPTION_INFO:
|
---|
[37560] | 932 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 933 |
|
---|
[41050] | 934 | /* no phones here yet */
|
---|
| 935 | case LC_VERSION_MIN_IPHONEOS:
|
---|
| 936 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 937 |
|
---|
[37560] | 938 | /* dylib */
|
---|
| 939 | case LC_LOAD_DYLIB:
|
---|
| 940 | case LC_ID_DYLIB:
|
---|
| 941 | case LC_LOAD_DYLINKER:
|
---|
| 942 | case LC_ID_DYLINKER:
|
---|
| 943 | case LC_PREBOUND_DYLIB:
|
---|
| 944 | case LC_LOAD_WEAK_DYLIB & ~LC_REQ_DYLD:
|
---|
| 945 | case LC_SUB_FRAMEWORK:
|
---|
| 946 | case LC_SUB_UMBRELLA:
|
---|
| 947 | case LC_SUB_CLIENT:
|
---|
| 948 | case LC_SUB_LIBRARY:
|
---|
[41050] | 949 | case LC_RPATH:
|
---|
| 950 | case LC_REEXPORT_DYLIB:
|
---|
| 951 | case LC_LAZY_LOAD_DYLIB:
|
---|
| 952 | case LC_DYLD_INFO:
|
---|
| 953 | case LC_DYLD_INFO_ONLY:
|
---|
| 954 | case LC_LOAD_UPWARD_DYLIB:
|
---|
| 955 | case LC_DYLD_ENVIRONMENT:
|
---|
| 956 | case LC_DYLIB_CODE_SIGN_DRS:
|
---|
[37560] | 957 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 958 |
|
---|
| 959 | default:
|
---|
| 960 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 961 | }
|
---|
| 962 |
|
---|
| 963 | /* next */
|
---|
| 964 | pCmd = (load_command_t *)((uintptr_t)pCmd + pCmd->cmdsize);
|
---|
| 965 | }
|
---|
| 966 |
|
---|
[82806] | 967 | /*
|
---|
| 968 | * Try figure out the virtual addresses for the symbol and string tables.
|
---|
| 969 | */
|
---|
| 970 | if (pThis->cbStrTab > 0)
|
---|
| 971 | pThis->uStrTabLinkAddr = rtR0DbgKrnlDarwinFileOffToVirtAddr(pThis, pThis->offStrTab);
|
---|
| 972 | if (pThis->cSyms > 0)
|
---|
| 973 | pThis->uSymTabLinkAddr = rtR0DbgKrnlDarwinFileOffToVirtAddr(pThis, pThis->offSyms);
|
---|
| 974 |
|
---|
[37560] | 975 | return VINF_SUCCESS;
|
---|
| 976 | }
|
---|
| 977 |
|
---|
| 978 |
|
---|
| 979 | /**
|
---|
[82806] | 980 | * Loads and validates the symbol and string tables.
|
---|
| 981 | *
|
---|
| 982 | * @returns IPRT status code.
|
---|
| 983 | * @param pThis The internal scratch data.
|
---|
| 984 | * @param pszKernelFile The name of the kernel file.
|
---|
| 985 | */
|
---|
| 986 | static int rtR0DbgKrnlDarwinLoadSymTab(RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
| 987 | {
|
---|
| 988 | /*
|
---|
| 989 | * Load the tables.
|
---|
| 990 | */
|
---|
| 991 | int rc;
|
---|
| 992 | pThis->paSyms = (MY_NLIST *)RTMemAllocZ(pThis->cSyms * sizeof(MY_NLIST));
|
---|
| 993 | if (pThis->paSyms)
|
---|
| 994 | {
|
---|
| 995 | rc = RTFileReadAt(pThis->hFile, pThis->offArch + pThis->offSyms, pThis->paSyms, pThis->cSyms * sizeof(MY_NLIST), NULL);
|
---|
| 996 | if (RT_SUCCESS(rc))
|
---|
| 997 | {
|
---|
| 998 | pThis->pachStrTab = (char *)RTMemAllocZ(pThis->cbStrTab + 1);
|
---|
| 999 | if (pThis->pachStrTab)
|
---|
| 1000 | {
|
---|
| 1001 | rc = RTFileReadAt(pThis->hFile, pThis->offArch + pThis->offStrTab, pThis->pachStrTab, pThis->cbStrTab, NULL);
|
---|
| 1002 | if (RT_SUCCESS(rc))
|
---|
| 1003 | {
|
---|
| 1004 | /*
|
---|
| 1005 | * Join paths with the in-memory code path.
|
---|
| 1006 | */
|
---|
| 1007 | rc = rtR0DbgKrnlDarwinParseSymTab(pThis, pszKernelFile);
|
---|
| 1008 | }
|
---|
| 1009 | }
|
---|
| 1010 | else
|
---|
| 1011 | rc = VERR_NO_MEMORY;
|
---|
| 1012 | }
|
---|
| 1013 | }
|
---|
| 1014 | else
|
---|
| 1015 | rc = VERR_NO_MEMORY;
|
---|
| 1016 | return rc;
|
---|
| 1017 | }
|
---|
| 1018 |
|
---|
| 1019 |
|
---|
| 1020 | /**
|
---|
| 1021 | * Loads the load commands and validates them.
|
---|
| 1022 | *
|
---|
| 1023 | * @returns IPRT status code.
|
---|
| 1024 | * @param pThis The internal scratch data.
|
---|
| 1025 | */
|
---|
| 1026 | static int rtR0DbgKrnlDarwinLoadCommands(RTDBGKRNLINFOINT *pThis)
|
---|
| 1027 | {
|
---|
| 1028 | int rc;
|
---|
| 1029 | pThis->pLoadCmds = (load_command_t *)RTMemAlloc(pThis->cbLoadCmds);
|
---|
| 1030 | if (pThis->pLoadCmds)
|
---|
| 1031 | {
|
---|
| 1032 | rc = RTFileReadAt(pThis->hFile, pThis->offArch + sizeof(MY_MACHO_HEADER), pThis->pLoadCmds, pThis->cbLoadCmds, NULL);
|
---|
| 1033 | if (RT_SUCCESS(rc))
|
---|
| 1034 | rc = rtR0DbgKrnlDarwinParseCommands(pThis);
|
---|
| 1035 | }
|
---|
| 1036 | else
|
---|
| 1037 | rc = VERR_NO_MEMORY;
|
---|
| 1038 | return rc;
|
---|
| 1039 | }
|
---|
| 1040 |
|
---|
| 1041 |
|
---|
| 1042 | /**
|
---|
[37560] | 1043 | * Loads the FAT and MACHO headers, noting down the relevant info.
|
---|
| 1044 | *
|
---|
| 1045 | * @returns IPRT status code.
|
---|
[37573] | 1046 | * @param pThis The internal scratch data.
|
---|
[37560] | 1047 | */
|
---|
[40856] | 1048 | static int rtR0DbgKrnlDarwinLoadFileHeaders(RTDBGKRNLINFOINT *pThis)
|
---|
[37560] | 1049 | {
|
---|
| 1050 | uint32_t i;
|
---|
| 1051 |
|
---|
[37573] | 1052 | pThis->offArch = 0;
|
---|
| 1053 | pThis->cbArch = 0;
|
---|
[37560] | 1054 |
|
---|
| 1055 | /*
|
---|
| 1056 | * Read the first bit of the file, parse the FAT if found there.
|
---|
| 1057 | */
|
---|
[37573] | 1058 | int rc = RTFileReadAt(pThis->hFile, 0, pThis->abBuf, sizeof(fat_header_t) + sizeof(fat_arch_t) * 16, NULL);
|
---|
[37560] | 1059 | if (RT_FAILURE(rc))
|
---|
| 1060 | return rc;
|
---|
| 1061 |
|
---|
[37573] | 1062 | fat_header_t *pFat = (fat_header *)pThis->abBuf;
|
---|
[37560] | 1063 | fat_arch_t *paFatArches = (fat_arch_t *)(pFat + 1);
|
---|
| 1064 |
|
---|
| 1065 | /* Correct FAT endian first. */
|
---|
| 1066 | if (pFat->magic == IMAGE_FAT_SIGNATURE_OE)
|
---|
| 1067 | {
|
---|
| 1068 | pFat->magic = RT_BSWAP_U32(pFat->magic);
|
---|
| 1069 | pFat->nfat_arch = RT_BSWAP_U32(pFat->nfat_arch);
|
---|
| 1070 | i = RT_MIN(pFat->nfat_arch, 16);
|
---|
| 1071 | while (i-- > 0)
|
---|
| 1072 | {
|
---|
| 1073 | paFatArches[i].cputype = RT_BSWAP_U32(paFatArches[i].cputype);
|
---|
| 1074 | paFatArches[i].cpusubtype = RT_BSWAP_U32(paFatArches[i].cpusubtype);
|
---|
| 1075 | paFatArches[i].offset = RT_BSWAP_U32(paFatArches[i].offset);
|
---|
| 1076 | paFatArches[i].size = RT_BSWAP_U32(paFatArches[i].size);
|
---|
| 1077 | paFatArches[i].align = RT_BSWAP_U32(paFatArches[i].align);
|
---|
| 1078 | }
|
---|
| 1079 | }
|
---|
| 1080 |
|
---|
| 1081 | /* Lookup our architecture in the FAT. */
|
---|
| 1082 | if (pFat->magic == IMAGE_FAT_SIGNATURE)
|
---|
| 1083 | {
|
---|
| 1084 | if (pFat->nfat_arch > 16)
|
---|
| 1085 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 1086 |
|
---|
| 1087 | for (i = 0; i < pFat->nfat_arch; i++)
|
---|
| 1088 | {
|
---|
| 1089 | if ( paFatArches[i].cputype == MY_CPU_TYPE
|
---|
| 1090 | && paFatArches[i].cpusubtype == MY_CPU_SUBTYPE_ALL)
|
---|
| 1091 | {
|
---|
[37573] | 1092 | pThis->offArch = paFatArches[i].offset;
|
---|
| 1093 | pThis->cbArch = paFatArches[i].size;
|
---|
| 1094 | if (!pThis->cbArch)
|
---|
[37560] | 1095 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 1096 | if (pThis->offArch < sizeof(fat_header_t) + sizeof(fat_arch_t) * pFat->nfat_arch)
|
---|
[37560] | 1097 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
[37573] | 1098 | if (pThis->offArch + pThis->cbArch <= pThis->offArch)
|
---|
[37560] | 1099 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1100 | break;
|
---|
| 1101 | }
|
---|
| 1102 | }
|
---|
| 1103 | if (i >= pFat->nfat_arch)
|
---|
| 1104 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1105 | }
|
---|
| 1106 |
|
---|
| 1107 | /*
|
---|
| 1108 | * Read the Mach-O header and validate it.
|
---|
| 1109 | */
|
---|
[37573] | 1110 | rc = RTFileReadAt(pThis->hFile, pThis->offArch, pThis->abBuf, sizeof(MY_MACHO_HEADER), NULL);
|
---|
[37560] | 1111 | if (RT_FAILURE(rc))
|
---|
| 1112 | return rc;
|
---|
[37573] | 1113 | MY_MACHO_HEADER const *pHdr = (MY_MACHO_HEADER const *)pThis->abBuf;
|
---|
[37560] | 1114 | if (pHdr->magic != MY_MACHO_MAGIC)
|
---|
| 1115 | {
|
---|
| 1116 | if ( pHdr->magic == IMAGE_MACHO32_SIGNATURE
|
---|
| 1117 | || pHdr->magic == IMAGE_MACHO32_SIGNATURE_OE
|
---|
| 1118 | || pHdr->magic == IMAGE_MACHO64_SIGNATURE
|
---|
| 1119 | || pHdr->magic == IMAGE_MACHO64_SIGNATURE_OE)
|
---|
| 1120 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1121 | RETURN_VERR_BAD_EXE_FORMAT;
|
---|
| 1122 | }
|
---|
| 1123 |
|
---|
| 1124 | if (pHdr->cputype != MY_CPU_TYPE)
|
---|
| 1125 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1126 | if (pHdr->cpusubtype != MY_CPU_SUBTYPE_ALL)
|
---|
| 1127 | RETURN_VERR_LDR_ARCH_MISMATCH;
|
---|
| 1128 | if (pHdr->filetype != MH_EXECUTE)
|
---|
| 1129 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1130 | if (pHdr->ncmds < 4)
|
---|
| 1131 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1132 | if (pHdr->ncmds > 256)
|
---|
| 1133 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1134 | if (pHdr->sizeofcmds <= pHdr->ncmds * sizeof(load_command_t))
|
---|
| 1135 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1136 | if (pHdr->sizeofcmds >= _1M)
|
---|
| 1137 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1138 | if (pHdr->flags & ~MH_VALID_FLAGS)
|
---|
| 1139 | RETURN_VERR_LDR_UNEXPECTED;
|
---|
| 1140 |
|
---|
[37573] | 1141 | pThis->cLoadCmds = pHdr->ncmds;
|
---|
| 1142 | pThis->cbLoadCmds = pHdr->sizeofcmds;
|
---|
[37560] | 1143 | return VINF_SUCCESS;
|
---|
| 1144 | }
|
---|
| 1145 |
|
---|
| 1146 |
|
---|
[40856] | 1147 | /**
|
---|
| 1148 | * Destructor.
|
---|
| 1149 | *
|
---|
| 1150 | * @param pThis The instance to destroy.
|
---|
| 1151 | */
|
---|
| 1152 | static void rtR0DbgKrnlDarwinDtor(RTDBGKRNLINFOINT *pThis)
|
---|
[37560] | 1153 | {
|
---|
[40856] | 1154 | pThis->u32Magic = ~RTDBGKRNLINFO_MAGIC;
|
---|
[37573] | 1155 |
|
---|
[82806] | 1156 | if (!pThis->fIsInMem)
|
---|
| 1157 | RTMemFree(pThis->pachStrTab);
|
---|
[40856] | 1158 | pThis->pachStrTab = NULL;
|
---|
| 1159 |
|
---|
[82806] | 1160 | if (!pThis->fIsInMem)
|
---|
| 1161 | RTMemFree(pThis->paSyms);
|
---|
[40856] | 1162 | pThis->paSyms = NULL;
|
---|
| 1163 |
|
---|
| 1164 | RTMemFree(pThis);
|
---|
| 1165 | }
|
---|
| 1166 |
|
---|
| 1167 |
|
---|
[82806] | 1168 | /**
|
---|
| 1169 | * Completes a handle, logging details.
|
---|
| 1170 | *
|
---|
| 1171 | * @returns VINF_SUCCESS
|
---|
| 1172 | * @param phKrnlInfo Where to return the handle.
|
---|
| 1173 | * @param pThis The instance to complete.
|
---|
| 1174 | * @param pszKernelFile What kernel file it's based on.
|
---|
| 1175 | */
|
---|
| 1176 | static int rtR0DbgKrnlDarwinSuccess(PRTDBGKRNLINFO phKrnlInfo, RTDBGKRNLINFOINT *pThis, const char *pszKernelFile)
|
---|
| 1177 | {
|
---|
| 1178 | pThis->u32Magic = RTDBGKRNLINFO_MAGIC;
|
---|
| 1179 | pThis->cRefs = 1;
|
---|
| 1180 |
|
---|
| 1181 | #if defined(DEBUG) || defined(IN_RING3)
|
---|
| 1182 | LOG_SUCCESS("RTR0DbgKrnlInfoOpen: Found: %#zx + %#zx - %s\n", pThis->uTextSegLinkAddr, pThis->offLoad, pszKernelFile);
|
---|
| 1183 | #else
|
---|
[82809] | 1184 | LOG_SUCCESS("RTR0DbgKrnlInfoOpen: Found: %s\n", pszKernelFile);
|
---|
[82806] | 1185 | #endif
|
---|
| 1186 | LOG_SUCCESS("RTR0DbgKrnlInfoOpen: SDK version: %u.%u.%u MinOS version: %u.%u.%u Source version: %u.%u.%u.%u.%u\n",
|
---|
| 1187 | pThis->uSdkVer >> 16, (pThis->uSdkVer >> 8) & 0xff, pThis->uSdkVer & 0xff,
|
---|
| 1188 | pThis->uMinOsVer >> 16, (pThis->uMinOsVer >> 8) & 0xff, pThis->uMinOsVer & 0xff,
|
---|
| 1189 | (uint32_t)(pThis->uSrcVer >> 40),
|
---|
| 1190 | (uint32_t)(pThis->uSrcVer >> 30) & 0x3ff,
|
---|
| 1191 | (uint32_t)(pThis->uSrcVer >> 20) & 0x3ff,
|
---|
| 1192 | (uint32_t)(pThis->uSrcVer >> 10) & 0x3ff,
|
---|
| 1193 | (uint32_t)(pThis->uSrcVer) & 0x3ff);
|
---|
| 1194 |
|
---|
| 1195 | *phKrnlInfo = pThis;
|
---|
| 1196 | return VINF_SUCCESS;
|
---|
| 1197 | }
|
---|
| 1198 |
|
---|
| 1199 |
|
---|
[58598] | 1200 | static int rtR0DbgKrnlDarwinOpen(PRTDBGKRNLINFO phKrnlInfo, const char *pszKernelFile)
|
---|
[40856] | 1201 | {
|
---|
| 1202 | RTDBGKRNLINFOINT *pThis = (RTDBGKRNLINFOINT *)RTMemAllocZ(sizeof(*pThis));
|
---|
[37573] | 1203 | if (!pThis)
|
---|
[37560] | 1204 | return VERR_NO_MEMORY;
|
---|
[37573] | 1205 | pThis->hFile = NIL_RTFILE;
|
---|
[37560] | 1206 |
|
---|
[86290] | 1207 | for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aoffLoadSegments); i++)
|
---|
| 1208 | pThis->aoffLoadSegments[i] = UINTPTR_MAX;
|
---|
| 1209 |
|
---|
[58598] | 1210 | int rc = RTFileOpen(&pThis->hFile, pszKernelFile, RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_WRITE);
|
---|
[37560] | 1211 | if (RT_SUCCESS(rc))
|
---|
[40856] | 1212 | rc = rtR0DbgKrnlDarwinLoadFileHeaders(pThis);
|
---|
[37560] | 1213 | if (RT_SUCCESS(rc))
|
---|
[40856] | 1214 | rc = rtR0DbgKrnlDarwinLoadCommands(pThis);
|
---|
[37560] | 1215 | if (RT_SUCCESS(rc))
|
---|
[69648] | 1216 | rc = rtR0DbgKrnlDarwinLoadSymTab(pThis, pszKernelFile);
|
---|
[37560] | 1217 | if (RT_SUCCESS(rc))
|
---|
[41052] | 1218 | {
|
---|
[86305] | 1219 | rc = rtR0DbgKrnlDarwinInitLoadDisplacements(pThis);
|
---|
| 1220 | if (RT_SUCCESS(rc))
|
---|
| 1221 | rc = rtR0DbgKrnlDarwinCheckStandardSymbols(pThis, pszKernelFile);
|
---|
[41052] | 1222 | }
|
---|
[37560] | 1223 |
|
---|
[40856] | 1224 | rtR0DbgKrnlDarwinLoadDone(pThis);
|
---|
[37566] | 1225 | if (RT_SUCCESS(rc))
|
---|
[82806] | 1226 | rtR0DbgKrnlDarwinSuccess(phKrnlInfo, pThis, pszKernelFile);
|
---|
[37566] | 1227 | else
|
---|
[40856] | 1228 | rtR0DbgKrnlDarwinDtor(pThis);
|
---|
[37560] | 1229 | return rc;
|
---|
| 1230 | }
|
---|
| 1231 |
|
---|
[37573] | 1232 |
|
---|
[82806] | 1233 | #ifdef IN_RING0
|
---|
| 1234 |
|
---|
| 1235 | /**
|
---|
| 1236 | * Checks if a page is present.
|
---|
| 1237 | * @returns true if it is, false if it isn't.
|
---|
| 1238 | * @param uPageAddr The address of/in the page to check.
|
---|
| 1239 | */
|
---|
| 1240 | static bool rtR0DbgKrnlDarwinIsPagePresent(uintptr_t uPageAddr)
|
---|
| 1241 | {
|
---|
| 1242 | /** @todo the dtrace code subjects the result to pmap_is_valid, but that
|
---|
| 1243 | * isn't exported, so we'll have to make to with != 0 here. */
|
---|
| 1244 | return pmap_find_phys(kernel_pmap, uPageAddr) != 0;
|
---|
| 1245 | }
|
---|
| 1246 |
|
---|
| 1247 |
|
---|
| 1248 | /**
|
---|
| 1249 | * Used to check whether a memory range is present or not.
|
---|
| 1250 | *
|
---|
| 1251 | * This is applied to the to the load commands and selected portions of the link
|
---|
| 1252 | * edit segment.
|
---|
| 1253 | *
|
---|
| 1254 | * @returns true if all present, false if not.
|
---|
| 1255 | * @param uAddress The start address.
|
---|
| 1256 | * @param cb Number of bytes to check.
|
---|
| 1257 | * @param pszWhat What we're checking, for logging.
|
---|
| 1258 | * @param pHdr The header address (for logging).
|
---|
| 1259 | */
|
---|
| 1260 | static bool rtR0DbgKrnlDarwinIsRangePresent(uintptr_t uAddress, size_t cb,
|
---|
| 1261 | const char *pszWhat, MY_MACHO_HEADER const volatile *pHdr)
|
---|
| 1262 | {
|
---|
| 1263 | uintptr_t const uStartAddress = uAddress;
|
---|
| 1264 | intptr_t cPages = RT_ALIGN_Z(cb + (uAddress & PAGE_OFFSET_MASK), PAGE_SIZE);
|
---|
[82809] | 1265 | RT_NOREF(uStartAddress, pszWhat, pHdr);
|
---|
[82806] | 1266 | for (;;)
|
---|
| 1267 | {
|
---|
| 1268 | if (!rtR0DbgKrnlDarwinIsPagePresent(uAddress))
|
---|
| 1269 | {
|
---|
| 1270 | LOG_NOT_PRESENT("RTR0DbgInfo: %p: Page in %s is not present: %#zx - rva %#zx; in structure %#zx (%#zx LB %#zx)\n",
|
---|
[85167] | 1271 | (void *)pHdr, pszWhat, uAddress, uAddress - (uintptr_t)pHdr, uAddress - uStartAddress, uStartAddress, cb);
|
---|
[82806] | 1272 | return false;
|
---|
| 1273 | }
|
---|
| 1274 |
|
---|
| 1275 | cPages -= 1;
|
---|
| 1276 | if (cPages <= 0)
|
---|
| 1277 | uAddress += PAGE_SIZE;
|
---|
| 1278 | else
|
---|
| 1279 | return true;
|
---|
| 1280 | }
|
---|
| 1281 | }
|
---|
| 1282 |
|
---|
| 1283 |
|
---|
| 1284 | /**
|
---|
| 1285 | * Try "open" the in-memory kernel image
|
---|
| 1286 | *
|
---|
| 1287 | * @returns IPRT stauts code
|
---|
| 1288 | * @param phKrnlInfo Where to return the info instance on success.
|
---|
| 1289 | */
|
---|
| 1290 | static int rtR0DbgKrnlDarwinOpenInMemory(PRTDBGKRNLINFO phKrnlInfo)
|
---|
| 1291 | {
|
---|
| 1292 | RTDBGKRNLINFOINT *pThis = (RTDBGKRNLINFOINT *)RTMemAllocZ(sizeof(*pThis));
|
---|
| 1293 | if (!pThis)
|
---|
| 1294 | return VERR_NO_MEMORY;
|
---|
| 1295 | pThis->hFile = NIL_RTFILE;
|
---|
| 1296 | pThis->fIsInMem = true;
|
---|
| 1297 |
|
---|
[86290] | 1298 | for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aoffLoadSegments); i++)
|
---|
| 1299 | pThis->aoffLoadSegments[i] = UINTPTR_MAX;
|
---|
| 1300 |
|
---|
[82806] | 1301 | /*
|
---|
| 1302 | * Figure the search range based on a symbol that is supposed to be in
|
---|
| 1303 | * kernel text segment, using it as the upper boundrary. The lower boundary
|
---|
| 1304 | * is determined by subtracting a max kernel size of 64MB (the largest kernel
|
---|
| 1305 | * file, kernel.kasan, is around 45MB, but the end of __TEXT is about 27 MB,
|
---|
| 1306 | * which means we should still have plenty of room for future growth with 64MB).
|
---|
| 1307 | */
|
---|
| 1308 | uintptr_t const uSomeKernelAddr = (uintptr_t)&absolutetime_to_nanoseconds;
|
---|
| 1309 | uintptr_t const uLowestKernelAddr = uSomeKernelAddr - _64M;
|
---|
| 1310 |
|
---|
| 1311 | /*
|
---|
| 1312 | * The kernel is probably aligned at some boundrary larger than a page size,
|
---|
| 1313 | * so to speed things up we start by assuming the alignment is page directory
|
---|
| 1314 | * sized. In case we're wrong and it's smaller, we decrease the alignment till
|
---|
| 1315 | * we've reach the page size.
|
---|
| 1316 | */
|
---|
| 1317 | uintptr_t fPrevAlignMask = ~(uintptr_t)0;
|
---|
| 1318 | uintptr_t uCurAlign = _2M; /* ASSUMES the kernel is typically 2MB aligned. */
|
---|
| 1319 | while (uCurAlign >= PAGE_SIZE)
|
---|
| 1320 | {
|
---|
| 1321 | /*
|
---|
| 1322 | * Search down from the symbol address looking for a mach-O header that
|
---|
| 1323 | * looks like it might belong to the kernel.
|
---|
| 1324 | */
|
---|
| 1325 | for (uintptr_t uCur = uSomeKernelAddr & ~(uCurAlign - 1); uCur >= uLowestKernelAddr; uCur -= uCurAlign)
|
---|
| 1326 | {
|
---|
| 1327 | /* Skip pages we've checked in previous iterations and pages that aren't present: */
|
---|
| 1328 | /** @todo This is a little bogus in case the header is paged out. */
|
---|
| 1329 | if ( (uCur & fPrevAlignMask)
|
---|
| 1330 | && rtR0DbgKrnlDarwinIsPagePresent(uCur))
|
---|
| 1331 | {
|
---|
| 1332 | /*
|
---|
| 1333 | * Look for valid mach-o header (we skip cpusubtype on purpose here).
|
---|
| 1334 | */
|
---|
| 1335 | MY_MACHO_HEADER const volatile *pHdr = (MY_MACHO_HEADER const volatile *)uCur;
|
---|
| 1336 | if ( pHdr->magic == MY_MACHO_MAGIC
|
---|
| 1337 | && pHdr->filetype == MH_EXECUTE
|
---|
| 1338 | && pHdr->cputype == MY_CPU_TYPE)
|
---|
| 1339 | {
|
---|
| 1340 | /* More header validation: */
|
---|
| 1341 | pThis->cLoadCmds = pHdr->ncmds;
|
---|
| 1342 | pThis->cbLoadCmds = pHdr->sizeofcmds;
|
---|
| 1343 | if (pHdr->ncmds < 4)
|
---|
[85167] | 1344 | LOG_MISMATCH("RTR0DbgInfo: %p: ncmds=%u is too small\n", (void *)pHdr, pThis->cLoadCmds);
|
---|
[82806] | 1345 | else if (pThis->cLoadCmds > 256)
|
---|
[85167] | 1346 | LOG_MISMATCH("RTR0DbgInfo: %p: ncmds=%u is too big\n", (void *)pHdr, pThis->cLoadCmds);
|
---|
[82806] | 1347 | else if (pThis->cbLoadCmds <= pThis->cLoadCmds * sizeof(load_command_t))
|
---|
| 1348 | LOG_MISMATCH("RTR0DbgInfo: %p: sizeofcmds=%u is too small for ncmds=%u\n",
|
---|
[85167] | 1349 | (void *)pHdr, pThis->cbLoadCmds, pThis->cLoadCmds);
|
---|
[82806] | 1350 | else if (pThis->cbLoadCmds >= _1M)
|
---|
[85167] | 1351 | LOG_MISMATCH("RTR0DbgInfo: %p: sizeofcmds=%u is too big\n", (void *)pHdr, pThis->cbLoadCmds);
|
---|
[82806] | 1352 | else if (pHdr->flags & ~MH_VALID_FLAGS)
|
---|
[85167] | 1353 | LOG_MISMATCH("RTR0DbgInfo: %p: invalid flags=%#x\n", (void *)pHdr, pHdr->flags);
|
---|
[82806] | 1354 | /*
|
---|
| 1355 | * Check that we can safely read the load commands, then parse & validate them.
|
---|
| 1356 | */
|
---|
| 1357 | else if (rtR0DbgKrnlDarwinIsRangePresent((uintptr_t)(pHdr + 1), pThis->cbLoadCmds, "load commands", pHdr))
|
---|
| 1358 | {
|
---|
| 1359 | pThis->pLoadCmds = (load_command_t *)(pHdr + 1);
|
---|
| 1360 | int rc = rtR0DbgKrnlDarwinParseCommands(pThis);
|
---|
| 1361 | if (RT_SUCCESS(rc))
|
---|
| 1362 | {
|
---|
| 1363 | /* Calculate the slide value. This is typically zero as the
|
---|
| 1364 | load commands has been relocated (the case with 10.14.0 at least). */
|
---|
| 1365 | /** @todo ASSUMES that the __TEXT segment comes first and includes the
|
---|
| 1366 | * mach-o header and load commands and all that. */
|
---|
| 1367 | pThis->offLoad = uCur - pThis->uTextSegLinkAddr;
|
---|
| 1368 |
|
---|
| 1369 | /* Check that the kernel symbol is in the text segment: */
|
---|
| 1370 | uintptr_t const offSomeKernAddr = uSomeKernelAddr - uCur;
|
---|
| 1371 | if (offSomeKernAddr >= pThis->cbTextSeg)
|
---|
| 1372 | LOG_MISMATCH("RTR0DbgInfo: %p: Our symbol at %zx (off %zx) isn't within the text segment (size %#zx)\n",
|
---|
[85167] | 1373 | (void *)pHdr, uSomeKernelAddr, offSomeKernAddr, pThis->cbTextSeg);
|
---|
[82806] | 1374 | /*
|
---|
| 1375 | * Parse the symbol+string tables.
|
---|
| 1376 | */
|
---|
| 1377 | else if (pThis->uSymTabLinkAddr == 0)
|
---|
| 1378 | LOG_MISMATCH("RTR0DbgInfo: %p: No symbol table VA (off %#x L %#x)\n",
|
---|
[85167] | 1379 | (void *)pHdr, pThis->offSyms, pThis->cSyms);
|
---|
[82806] | 1380 | else if (pThis->uStrTabLinkAddr == 0)
|
---|
| 1381 | LOG_MISMATCH("RTR0DbgInfo: %p: No string table VA (off %#x LB %#x)\n",
|
---|
[85167] | 1382 | (void *)pHdr, pThis->offSyms, pThis->cbStrTab);
|
---|
[82806] | 1383 | else if ( rtR0DbgKrnlDarwinIsRangePresent(pThis->uStrTabLinkAddr + pThis->offLoad,
|
---|
| 1384 | pThis->cbStrTab, "string table", pHdr)
|
---|
| 1385 | && rtR0DbgKrnlDarwinIsRangePresent(pThis->uSymTabLinkAddr + pThis->offLoad,
|
---|
| 1386 | pThis->cSyms * sizeof(pThis->paSyms),
|
---|
| 1387 | "symbol table", pHdr))
|
---|
| 1388 | {
|
---|
| 1389 | pThis->pachStrTab = (char *)pThis->uStrTabLinkAddr + pThis->offLoad;
|
---|
| 1390 | pThis->paSyms = (MY_NLIST *)pThis->uSymTabLinkAddr + pThis->offLoad;
|
---|
| 1391 | rc = rtR0DbgKrnlDarwinParseSymTab(pThis, "in-memory");
|
---|
| 1392 | if (RT_SUCCESS(rc))
|
---|
| 1393 | {
|
---|
[86305] | 1394 | rc = rtR0DbgKrnlDarwinInitLoadDisplacements(pThis);
|
---|
[82806] | 1395 | if (RT_SUCCESS(rc))
|
---|
[86305] | 1396 | {
|
---|
| 1397 | /*
|
---|
| 1398 | * Finally check the standard candles.
|
---|
| 1399 | */
|
---|
| 1400 | rc = rtR0DbgKrnlDarwinCheckStandardSymbols(pThis, "in-memory");
|
---|
| 1401 | rtR0DbgKrnlDarwinLoadDone(pThis);
|
---|
| 1402 | if (RT_SUCCESS(rc))
|
---|
| 1403 | return rtR0DbgKrnlDarwinSuccess(phKrnlInfo, pThis, "in-memory");
|
---|
| 1404 | }
|
---|
[82806] | 1405 | }
|
---|
| 1406 | }
|
---|
| 1407 | }
|
---|
| 1408 |
|
---|
| 1409 | RT_ZERO(pThis->apSections);
|
---|
| 1410 | RT_ZERO(pThis->apSegments);
|
---|
| 1411 | pThis->pLoadCmds = NULL;
|
---|
| 1412 | }
|
---|
| 1413 | }
|
---|
| 1414 | }
|
---|
| 1415 | }
|
---|
| 1416 |
|
---|
| 1417 | fPrevAlignMask = uCurAlign - 1;
|
---|
| 1418 | uCurAlign >>= 1;
|
---|
| 1419 | }
|
---|
| 1420 |
|
---|
| 1421 | RTMemFree(pThis);
|
---|
| 1422 | return VERR_GENERAL_FAILURE;
|
---|
| 1423 | }
|
---|
| 1424 |
|
---|
| 1425 | #endif /* IN_RING0 */
|
---|
| 1426 |
|
---|
[58598] | 1427 | RTR0DECL(int) RTR0DbgKrnlInfoOpen(PRTDBGKRNLINFO phKrnlInfo, uint32_t fFlags)
|
---|
| 1428 | {
|
---|
| 1429 | AssertPtrReturn(phKrnlInfo, VERR_INVALID_POINTER);
|
---|
| 1430 | *phKrnlInfo = NIL_RTDBGKRNLINFO;
|
---|
| 1431 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
|
---|
| 1432 |
|
---|
[82806] | 1433 | #ifdef IN_RING0
|
---|
[58598] | 1434 | /*
|
---|
[82806] | 1435 | * Try see if we can use the kernel memory directly. This depends on not
|
---|
| 1436 | * having the __LINKEDIT segment jettisoned or swapped out. For older
|
---|
| 1437 | * kernels this is typically the case, unless kallsyms=1 is in boot-args.
|
---|
| 1438 | */
|
---|
| 1439 | int rc = rtR0DbgKrnlDarwinOpenInMemory(phKrnlInfo);
|
---|
| 1440 | if (RT_SUCCESS(rc))
|
---|
| 1441 | {
|
---|
| 1442 | Log(("RTR0DbgKrnlInfoOpen: Using in-memory kernel.\n"));
|
---|
| 1443 | return rc;
|
---|
| 1444 | }
|
---|
| 1445 | #else
|
---|
| 1446 | int rc = VERR_WRONG_ORDER; /* shut up stupid MSC */
|
---|
| 1447 | #endif
|
---|
| 1448 |
|
---|
| 1449 | /*
|
---|
[58598] | 1450 | * Go thru likely kernel locations
|
---|
| 1451 | *
|
---|
| 1452 | * Note! Check the OS X version and reorder the list?
|
---|
| 1453 | * Note! We should try fish kcsuffix out of bootargs or somewhere one day.
|
---|
| 1454 | */
|
---|
| 1455 | static bool s_fFirstCall = true;
|
---|
[69643] | 1456 | #ifdef IN_RING3
|
---|
| 1457 | extern const char *g_pszTestKernel;
|
---|
| 1458 | #endif
|
---|
[58598] | 1459 | struct
|
---|
| 1460 | {
|
---|
| 1461 | const char *pszLocation;
|
---|
| 1462 | int rc;
|
---|
| 1463 | } aKernels[] =
|
---|
| 1464 | {
|
---|
[69643] | 1465 | #ifdef IN_RING3
|
---|
| 1466 | { g_pszTestKernel, VERR_WRONG_ORDER },
|
---|
| 1467 | #endif
|
---|
[58598] | 1468 | { "/System/Library/Kernels/kernel", VERR_WRONG_ORDER },
|
---|
| 1469 | { "/System/Library/Kernels/kernel.development", VERR_WRONG_ORDER },
|
---|
| 1470 | { "/System/Library/Kernels/kernel.debug", VERR_WRONG_ORDER },
|
---|
| 1471 | { "/mach_kernel", VERR_WRONG_ORDER },
|
---|
| 1472 | };
|
---|
| 1473 | for (uint32_t i = 0; i < RT_ELEMENTS(aKernels); i++)
|
---|
| 1474 | {
|
---|
| 1475 | aKernels[i].rc = rc = rtR0DbgKrnlDarwinOpen(phKrnlInfo, aKernels[i].pszLocation);
|
---|
| 1476 | if (RT_SUCCESS(rc))
|
---|
| 1477 | {
|
---|
| 1478 | if (s_fFirstCall)
|
---|
| 1479 | {
|
---|
| 1480 | printf("RTR0DbgKrnlInfoOpen: Using kernel file '%s'\n", aKernels[i].pszLocation);
|
---|
| 1481 | s_fFirstCall = false;
|
---|
| 1482 | }
|
---|
| 1483 | return rc;
|
---|
| 1484 | }
|
---|
| 1485 | }
|
---|
| 1486 |
|
---|
| 1487 | /*
|
---|
| 1488 | * Failed.
|
---|
| 1489 | */
|
---|
| 1490 | /* Pick the best error code. */
|
---|
| 1491 | for (uint32_t i = 0; rc == VERR_FILE_NOT_FOUND && i < RT_ELEMENTS(aKernels); i++)
|
---|
| 1492 | if (aKernels[i].rc != VERR_FILE_NOT_FOUND)
|
---|
| 1493 | rc = aKernels[i].rc;
|
---|
| 1494 |
|
---|
| 1495 | /* Bitch about it. */
|
---|
| 1496 | printf("RTR0DbgKrnlInfoOpen: failed to find matching kernel file! rc=%d\n", rc);
|
---|
| 1497 | if (s_fFirstCall)
|
---|
| 1498 | {
|
---|
| 1499 | for (uint32_t i = 0; i < RT_ELEMENTS(aKernels); i++)
|
---|
| 1500 | printf("RTR0DbgKrnlInfoOpen: '%s' -> %d\n", aKernels[i].pszLocation, aKernels[i].rc);
|
---|
| 1501 | s_fFirstCall = false;
|
---|
| 1502 | }
|
---|
| 1503 |
|
---|
| 1504 | return rc;
|
---|
| 1505 | }
|
---|
| 1506 |
|
---|
| 1507 |
|
---|
[40856] | 1508 | RTR0DECL(uint32_t) RTR0DbgKrnlInfoRetain(RTDBGKRNLINFO hKrnlInfo)
|
---|
[37573] | 1509 | {
|
---|
[40856] | 1510 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
| 1511 | AssertPtrReturn(pThis, UINT32_MAX);
|
---|
| 1512 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), UINT32_MAX);
|
---|
[37573] | 1513 |
|
---|
[40856] | 1514 | uint32_t cRefs = ASMAtomicIncU32(&pThis->cRefs);
|
---|
| 1515 | Assert(cRefs && cRefs < 100000);
|
---|
| 1516 | return cRefs;
|
---|
[37573] | 1517 | }
|
---|
| 1518 |
|
---|
| 1519 |
|
---|
[40856] | 1520 | RTR0DECL(uint32_t) RTR0DbgKrnlInfoRelease(RTDBGKRNLINFO hKrnlInfo)
|
---|
[37573] | 1521 | {
|
---|
[40856] | 1522 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
| 1523 | if (pThis == NIL_RTDBGKRNLINFO)
|
---|
| 1524 | return 0;
|
---|
| 1525 | AssertPtrReturn(pThis, UINT32_MAX);
|
---|
| 1526 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), UINT32_MAX);
|
---|
[37573] | 1527 |
|
---|
[40856] | 1528 | uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs);
|
---|
| 1529 | if (cRefs == 0)
|
---|
| 1530 | rtR0DbgKrnlDarwinDtor(pThis);
|
---|
| 1531 | return cRefs;
|
---|
| 1532 | }
|
---|
| 1533 |
|
---|
| 1534 |
|
---|
[58800] | 1535 | RTR0DECL(int) RTR0DbgKrnlInfoQueryMember(RTDBGKRNLINFO hKrnlInfo, const char *pszModule, const char *pszStructure,
|
---|
[40856] | 1536 | const char *pszMember, size_t *poffMember)
|
---|
| 1537 | {
|
---|
| 1538 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
[37573] | 1539 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
[40856] | 1540 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
|
---|
[63451] | 1541 | AssertPtrReturn(pszMember, VERR_INVALID_POINTER);
|
---|
| 1542 | AssertPtrReturn(pszModule, VERR_INVALID_POINTER);
|
---|
| 1543 | AssertPtrReturn(pszStructure, VERR_INVALID_POINTER);
|
---|
| 1544 | AssertPtrReturn(poffMember, VERR_INVALID_POINTER);
|
---|
[40856] | 1545 | return VERR_NOT_FOUND;
|
---|
| 1546 | }
|
---|
[37573] | 1547 |
|
---|
| 1548 |
|
---|
[40856] | 1549 | RTR0DECL(int) RTR0DbgKrnlInfoQuerySymbol(RTDBGKRNLINFO hKrnlInfo, const char *pszModule,
|
---|
| 1550 | const char *pszSymbol, void **ppvSymbol)
|
---|
| 1551 | {
|
---|
| 1552 | RTDBGKRNLINFOINT *pThis = hKrnlInfo;
|
---|
| 1553 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
| 1554 | AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
|
---|
| 1555 | AssertPtrReturn(pszSymbol, VERR_INVALID_PARAMETER);
|
---|
| 1556 | AssertPtrNullReturn(ppvSymbol, VERR_INVALID_PARAMETER);
|
---|
| 1557 | AssertReturn(!pszModule, VERR_MODULE_NOT_FOUND);
|
---|
[37573] | 1558 |
|
---|
[40856] | 1559 | uintptr_t uValue = rtR0DbgKrnlDarwinLookup(pThis, pszSymbol);
|
---|
| 1560 | if (ppvSymbol)
|
---|
| 1561 | *ppvSymbol = (void *)uValue;
|
---|
| 1562 | if (uValue)
|
---|
| 1563 | return VINF_SUCCESS;
|
---|
| 1564 | return VERR_SYMBOL_NOT_FOUND;
|
---|
[37573] | 1565 | }
|
---|
| 1566 |
|
---|