1 //===-- sanitizer_freebsd.h -------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file is a part of Sanitizer runtime. It contains FreeBSD-specific 10 // definitions. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef SANITIZER_FREEBSD_H 15 #define SANITIZER_FREEBSD_H 16 17 #include "sanitizer_internal_defs.h" 18 19 // x86-64 FreeBSD 9.2 and older define 'ucontext_t' incorrectly in 20 // 32-bit mode. 21 #if SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32) 22 #include <osreldate.h> 23 #if __FreeBSD_version <= 902001 // v9.2 24 #include <link.h> 25 #include <sys/param.h> 26 #include <ucontext.h> 27 28 namespace __sanitizer { 29 30 typedef unsigned long long __xuint64_t; 31 32 typedef __int32_t __xregister_t; 33 34 typedef struct __xmcontext { 35 __xregister_t mc_onstack; 36 __xregister_t mc_gs; 37 __xregister_t mc_fs; 38 __xregister_t mc_es; 39 __xregister_t mc_ds; 40 __xregister_t mc_edi; 41 __xregister_t mc_esi; 42 __xregister_t mc_ebp; 43 __xregister_t mc_isp; 44 __xregister_t mc_ebx; 45 __xregister_t mc_edx; 46 __xregister_t mc_ecx; 47 __xregister_t mc_eax; 48 __xregister_t mc_trapno; 49 __xregister_t mc_err; 50 __xregister_t mc_eip; 51 __xregister_t mc_cs; 52 __xregister_t mc_eflags; 53 __xregister_t mc_esp; 54 __xregister_t mc_ss; 55 56 int mc_len; 57 int mc_fpformat; 58 int mc_ownedfp; 59 __xregister_t mc_flags; 60 61 int mc_fpstate[128] __aligned(16); 62 __xregister_t mc_fsbase; 63 __xregister_t mc_gsbase; 64 __xregister_t mc_xfpustate; 65 __xregister_t mc_xfpustate_len; 66 67 int mc_spare2[4]; 68 } xmcontext_t; 69 70 typedef struct __xucontext { 71 sigset_t uc_sigmask; 72 xmcontext_t uc_mcontext; 73 74 struct __ucontext *uc_link; 75 stack_t uc_stack; 76 int uc_flags; 77 int __spare__[4]; 78 } xucontext_t; 79 80 struct xkinfo_vmentry { 81 int kve_structsize; 82 int kve_type; 83 __xuint64_t kve_start; 84 __xuint64_t kve_end; 85 __xuint64_t kve_offset; 86 __xuint64_t kve_vn_fileid; 87 __uint32_t kve_vn_fsid; 88 int kve_flags; 89 int kve_resident; 90 int kve_private_resident; 91 int kve_protection; 92 int kve_ref_count; 93 int kve_shadow_count; 94 int kve_vn_type; 95 __xuint64_t kve_vn_size; 96 __uint32_t kve_vn_rdev; 97 __uint16_t kve_vn_mode; 98 __uint16_t kve_status; 99 int _kve_ispare[12]; 100 char kve_path[PATH_MAX]; 101 }; 102 103 typedef struct { 104 __uint32_t p_type; 105 __uint32_t p_offset; 106 __uint32_t p_vaddr; 107 __uint32_t p_paddr; 108 __uint32_t p_filesz; 109 __uint32_t p_memsz; 110 __uint32_t p_flags; 111 __uint32_t p_align; 112 } XElf32_Phdr; 113 114 struct xdl_phdr_info { 115 Elf_Addr dlpi_addr; 116 const char *dlpi_name; 117 const XElf32_Phdr *dlpi_phdr; 118 Elf_Half dlpi_phnum; 119 unsigned long long int dlpi_adds; 120 unsigned long long int dlpi_subs; 121 size_t dlpi_tls_modid; 122 void *dlpi_tls_data; 123 }; 124 125 typedef int (*__xdl_iterate_hdr_callback)(struct xdl_phdr_info *, size_t, 126 void *); 127 typedef int xdl_iterate_phdr_t(__xdl_iterate_hdr_callback, void *); 128 129 #define xdl_iterate_phdr(callback, param) \ 130 (((xdl_iterate_phdr_t *)dl_iterate_phdr)((callback), (param))) 131 132 } // namespace __sanitizer 133 134 #endif // __FreeBSD_version <= 902001 135 #endif // SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32) 136 137 #endif // SANITIZER_FREEBSD_H 138