elf/tst-auditmod1.c

   1 #include <dlfcn.h>
   2 #include <stdint.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <unistd.h>
   7 #include <bits/wordsize.h>
   8 #include <gnu/lib-names.h>
   9
  10
  11 unsigned int
  12 la_version (unsigned int v)
  13 {
  14   setlinebuf (stdout);
  15
  16   printf ("version: %u\n", v);
  17
  18   char buf[20];
  19   sprintf (buf, "%u", v);
  20
  21   return v;
  22 }
  23
  24 void
  25 la_activity (uintptr_t *cookie, unsigned int flag)
  26 {
  27   if (flag == LA_ACT_CONSISTENT)
  28     printf ("activity: consistent\n");
  29   else if (flag == LA_ACT_ADD)
  30     printf ("activity: add\n");
  31   else if (flag == LA_ACT_DELETE)
  32     printf ("activity: delete\n");
  33   else
  34     printf ("activity: unknown activity %u\n", flag);
  35 }
  36
  37 char *
  38 la_objsearch (const char *name, uintptr_t *cookie, unsigned int flag)
  39 {
  40   char buf[100];
  41   const char *flagstr;
  42   if (flag == LA_SER_ORIG)
  43     flagstr = "LA_SET_ORIG";
  44   else if (flag == LA_SER_LIBPATH)
  45     flagstr = "LA_SER_LIBPATH";
  46   else if (flag == LA_SER_RUNPATH)
  47     flagstr = "LA_SER_RUNPATH";
  48   else if (flag == LA_SER_CONFIG)
  49     flagstr = "LA_SER_CONFIG";
  50   else if (flag == LA_SER_DEFAULT)
  51     flagstr = "LA_SER_DEFAULT";
  52   else if (flag == LA_SER_SECURE)
  53     flagstr = "LA_SER_SECURE";
  54   else
  55     {
  56        sprintf (buf, "unknown flag %d", flag);
  57        flagstr = buf;
  58     }
  59   printf ("objsearch: %s, %s\n", name, flagstr);
  60
  61   return (char *) name;
  62 }
  63
  64 unsigned int
  65 la_objopen (struct link_map *l, Lmid_t lmid, uintptr_t *cookie)
  66 {
  67   printf ("objopen: %ld, %s\n", lmid, l->l_name);
  68
  69   return 3;
  70 }
  71
  72 void
  73 la_preinit (uintptr_t *cookie)
  74 {
  75   printf ("preinit\n");
  76 }
  77
  78 unsigned int
  79 la_objclose  (uintptr_t *cookie)
  80 {
  81   printf ("objclose\n");
  82   return 0;
  83 }
  84
  85 uintptr_t
  86 la_symbind32 (Elf32_Sym *sym, unsigned int ndx, uintptr_t *refcook,
  87               uintptr_t *defcook, unsigned int *flags, const char *symname)
  88 {
  89   printf ("symbind32: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
  90           symname, (long int) sym->st_value, ndx, *flags);
  91
  92   return sym->st_value;
  93 }
  94
  95 uintptr_t
  96 la_symbind64 (Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook,
  97               uintptr_t *defcook, unsigned int *flags, const char *symname)
  98 {
  99   printf ("symbind64: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
 100           symname, (long int) sym->st_value, ndx, *flags);
 101
 102   return sym->st_value;
 103 }
 104
 105 #ifdef __i386__
 106 # define pltenter la_i86_gnu_pltenter
 107 # define pltexit la_i86_gnu_pltexit
 108 # define La_regs La_i86_regs
 109 # define La_retval La_i86_retval
 110 # define int_retval lrv_eax
 111 #elif defined __x86_64__
 112 # define pltenter la_x86_64_gnu_pltenter
 113 # define pltexit la_x86_64_gnu_pltexit
 114 # define La_regs La_x86_64_regs
 115 # define La_retval La_x86_64_retval
 116 # define int_retval lrv_rax
 117 #elif defined __powerpc__ && __WORDSIZE == 32
 118 # define pltenter la_ppc32_gnu_pltenter
 119 # define pltexit la_ppc32_gnu_pltexit
 120 # define La_regs La_ppc32_regs
 121 # define La_retval La_ppc32_retval
 122 # define int_retval lrv_r3
 123 #elif defined __powerpc__ && __WORDSIZE == 64
 124 # define pltenter la_ppc64_gnu_pltenter
 125 # define pltexit la_ppc64_gnu_pltexit
 126 # define La_regs La_ppc64_regs
 127 # define La_retval La_ppc64_retval
 128 # define int_retval lrv_r3
 129 #elif defined __sh__
 130 # define pltenter la_sh_gnu_pltenter
 131 # define pltexit la_sh_gnu_pltexit
 132 # define La_regs La_sh_regs
 133 # define La_retval La_sh_retval
 134 # define int_retval lrv_r0
 135 #elif defined __mc68000__
 136 # define pltenter la_m68k_gnu_pltenter
 137 # define pltexit la_m68k_gnu_pltexit
 138 # define La_regs La_m68k_regs
 139 # define La_retval La_m68k_retval
 140 # define int_retval lrv_d0
 141 #elif defined __alpha__
 142 # define pltenter la_alpha_gnu_pltenter
 143 # define pltexit la_alpha_gnu_pltexit
 144 # define La_regs La_alpha_regs
 145 # define La_retval La_alpha_retval
 146 # define int_retval lrv_r0
 147 #elif defined __s390__ && __WORDSIZE == 32
 148 # define pltenter la_s390_32_gnu_pltenter
 149 # define pltexit la_s390_32_gnu_pltexit
 150 # define La_regs La_s390_32_regs
 151 # define La_retval La_s390_32_retval
 152 # define int_retval lrv_r2
 153 #elif defined __s390__ && __WORDSIZE == 64
 154 # define pltenter la_s390_64_gnu_pltenter
 155 # define pltexit la_s390_64_gnu_pltexit
 156 # define La_regs La_s390_64_regs
 157 # define La_retval La_s390_64_retval
 158 # define int_retval lrv_r2
 159 #else
 160 # error "architecture specific code needed"
 161 #endif
 162
 163
 164 ElfW(Addr)
 165 pltenter (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
 166           uintptr_t *defcook, La_regs *regs, unsigned int *flags,
 167           const char *symname, long int *framesizep)
 168 {
 169   printf ("pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
 170           symname, (long int) sym->st_value, ndx, *flags);
 171
 172   return sym->st_value;
 173 }
 174
 175 unsigned int
 176 pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
 177          uintptr_t *defcook, const La_regs *inregs, La_retval *outregs,
 178          const char *symname)
 179 {
 180   printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n",
 181           symname, (long int) sym->st_value, ndx, outregs->int_retval);
 182
 183   return 0;
 184 }