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