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