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1 //===-- sanitizer_freebsd.h -------------------------------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file is a part of Sanitizer runtime. It contains FreeBSD-specific
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10 // definitions.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #ifndef SANITIZER_FREEBSD_H
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15 #define SANITIZER_FREEBSD_H
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16
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17 #include "sanitizer_internal_defs.h"
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18
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19 // x86-64 FreeBSD 9.2 and older define 'ucontext_t' incorrectly in
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20 // 32-bit mode.
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21 #if SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32)
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22 # include <osreldate.h>
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23 # if __FreeBSD_version <= 902001 // v9.2
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24 # include <link.h>
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25 # include <sys/param.h>
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26 # include <ucontext.h>
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27
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28 namespace __sanitizer {
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29
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30 typedef unsigned long long __xuint64_t;
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31
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32 typedef __int32_t __xregister_t;
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33
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34 typedef struct __xmcontext {
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35 __xregister_t mc_onstack;
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36 __xregister_t mc_gs;
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37 __xregister_t mc_fs;
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38 __xregister_t mc_es;
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39 __xregister_t mc_ds;
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40 __xregister_t mc_edi;
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41 __xregister_t mc_esi;
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42 __xregister_t mc_ebp;
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43 __xregister_t mc_isp;
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44 __xregister_t mc_ebx;
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45 __xregister_t mc_edx;
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46 __xregister_t mc_ecx;
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47 __xregister_t mc_eax;
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48 __xregister_t mc_trapno;
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49 __xregister_t mc_err;
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50 __xregister_t mc_eip;
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51 __xregister_t mc_cs;
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52 __xregister_t mc_eflags;
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53 __xregister_t mc_esp;
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54 __xregister_t mc_ss;
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55
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56 int mc_len;
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57 int mc_fpformat;
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58 int mc_ownedfp;
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59 __xregister_t mc_flags;
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60
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61 int mc_fpstate[128] __aligned(16);
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62 __xregister_t mc_fsbase;
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63 __xregister_t mc_gsbase;
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64 __xregister_t mc_xfpustate;
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65 __xregister_t mc_xfpustate_len;
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66
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67 int mc_spare2[4];
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68 } xmcontext_t;
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69
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70 typedef struct __xucontext {
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71 sigset_t uc_sigmask;
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72 xmcontext_t uc_mcontext;
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73
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74 struct __ucontext *uc_link;
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75 stack_t uc_stack;
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76 int uc_flags;
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77 int __spare__[4];
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78 } xucontext_t;
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79
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80 struct xkinfo_vmentry {
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81 int kve_structsize;
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82 int kve_type;
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83 __xuint64_t kve_start;
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84 __xuint64_t kve_end;
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85 __xuint64_t kve_offset;
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86 __xuint64_t kve_vn_fileid;
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87 __uint32_t kve_vn_fsid;
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88 int kve_flags;
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89 int kve_resident;
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90 int kve_private_resident;
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91 int kve_protection;
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92 int kve_ref_count;
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93 int kve_shadow_count;
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94 int kve_vn_type;
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95 __xuint64_t kve_vn_size;
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96 __uint32_t kve_vn_rdev;
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97 __uint16_t kve_vn_mode;
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98 __uint16_t kve_status;
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99 int _kve_ispare[12];
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100 char kve_path[PATH_MAX];
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101 };
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102
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103 typedef struct {
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104 __uint32_t p_type;
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105 __uint32_t p_offset;
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106 __uint32_t p_vaddr;
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107 __uint32_t p_paddr;
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108 __uint32_t p_filesz;
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109 __uint32_t p_memsz;
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110 __uint32_t p_flags;
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111 __uint32_t p_align;
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112 } XElf32_Phdr;
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113
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114 struct xdl_phdr_info {
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115 Elf_Addr dlpi_addr;
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116 const char *dlpi_name;
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117 const XElf32_Phdr *dlpi_phdr;
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118 Elf_Half dlpi_phnum;
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119 unsigned long long int dlpi_adds;
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120 unsigned long long int dlpi_subs;
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121 size_t dlpi_tls_modid;
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122 void *dlpi_tls_data;
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123 };
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124
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125 typedef int (*__xdl_iterate_hdr_callback)(struct xdl_phdr_info*, size_t, void*);
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126 typedef int xdl_iterate_phdr_t(__xdl_iterate_hdr_callback, void*);
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127
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128 #define xdl_iterate_phdr(callback, param) \
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129 (((xdl_iterate_phdr_t*) dl_iterate_phdr)((callback), (param)))
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130
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131 } // namespace __sanitizer
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132
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133 # endif // __FreeBSD_version <= 902001
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134 #endif // SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32)
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135
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136 #endif // SANITIZER_FREEBSD_H
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