1 #!/bin/sh 2 verbose=false 3 if [ "$1" = "-v" ]; then 4 verbose=true 5 shift 6 fi 7 8 build_plat=@build_arch@ 9 plat=@arch@ 10 os=@target_os@ 11 num_errors=0 12 13 LIBUNWIND=../src/.libs/libunwind.so 14 LIBUNWIND_GENERIC=../src/.libs/libunwind-${plat}.so 15 16 fetch_symtab () { 17 filename=$1 18 19 if [ ! -r $filename ]; then 20 return 21 fi 22 23 if $verbose; then 24 echo "Checking $filename..." 25 fi 26 27 # 28 # Unfortunately, "nm --defined" is a GNU-extension. For portability, 29 # build the list of defined symbols by hand. 30 # 31 symtab=`nm -g $filename` 32 saved_IFS="$IFS" 33 IFS="" 34 undef=`nm -g -u $filename` 35 for line in $undef; do 36 symtab=`echo "$symtab" | grep -v "^${line}"\$` 37 done; 38 IFS="$saved_IFS" 39 } 40 41 ignore () { 42 sym=$1 43 symtab=`echo "$symtab" | grep -v " ${sym}\$"` 44 } 45 46 match () { 47 sym=$1 48 if `echo "$symtab" | grep -q " ${sym}\$"`; then 49 symtab=`echo "$symtab" | grep -v " ${sym}\$"` 50 else 51 echo " ERROR: Symbol \"$sym\" missing." 52 num_errors=`expr $num_errors + 1` 53 fi 54 } 55 56 # 57 # Filter out miscellaneous symbols that get defined by the 58 # linker for each shared object. 59 # 60 filter_misc () { 61 ignore _DYNAMIC 62 ignore _GLOBAL_OFFSET_TABLE_ 63 ignore __bss_start 64 ignore _edata 65 ignore _end 66 ignore _Uelf32_get_proc_name 67 ignore _Uelf32_valid_object 68 ignore _Uelf64_get_proc_name 69 ignore _Uelf64_valid_object 70 ignore _U.*debug_level 71 ignore ICRT.INTERNAL # ICC 8.x defines this 72 73 # Ignore symbols generated by the ARM Linux default linker script. 74 # For details see the binutils sources (src/ld/emulparams/armelf_linux.sh). 75 if [ ${plat} = "arm" ]; then 76 ignore __bss_start__ 77 ignore __bss_end__ 78 ignore __end__ 79 ignore _bss_end__ 80 fi 81 82 if [ ${plat} = "mips" ]; then 83 ignore _fbss 84 ignore _fdata 85 ignore _ftext 86 ignore _gp 87 fi 88 } 89 90 check_local_unw_abi () { 91 match _UL${plat}_create_addr_space 92 match _UL${plat}_destroy_addr_space 93 match _UL${plat}_get_fpreg 94 match _UL${plat}_get_proc_info 95 match _UL${plat}_get_proc_info_by_ip 96 match _UL${plat}_get_proc_name 97 match _UL${plat}_get_reg 98 match _UL${plat}_get_save_loc 99 match _UL${plat}_init_local 100 match _UL${plat}_init_remote 101 match _UL${plat}_is_signal_frame 102 match _UL${plat}_handle_signal_frame 103 match _UL${plat}_local_addr_space 104 match _UL${plat}_resume 105 match _UL${plat}_set_caching_policy 106 match _UL${plat}_set_reg 107 match _UL${plat}_set_fpreg 108 match _UL${plat}_step 109 110 match _U${plat}_flush_cache 111 match _U${plat}_get_accessors 112 match _U${plat}_getcontext 113 match _U${plat}_regname 114 match _U${plat}_strerror 115 116 match _U_dyn_cancel 117 match _U_dyn_info_list_addr 118 match _U_dyn_register 119 120 match unw_backtrace 121 match backtrace 122 123 case ${plat} in 124 arm) 125 match _U${plat}_get_elf_image 126 match _U${plat}_is_fpreg 127 match _UL${plat}_search_unwind_table 128 match _UL${plat}_dwarf_search_unwind_table 129 match _UL${plat}_dwarf_find_unwind_table 130 ;; 131 hppa) 132 match _UL${plat}_dwarf_search_unwind_table 133 match _UL${plat}_dwarf_find_unwind_table 134 match _U${plat}_get_elf_image 135 match _U${plat}_setcontext 136 ;; 137 ia64) 138 match _UL${plat}_search_unwind_table 139 match _U${plat}_get_elf_image 140 ;; 141 x86) 142 match _U${plat}_get_elf_image 143 match _U${plat}_is_fpreg 144 match _UL${plat}_dwarf_search_unwind_table 145 match _UL${plat}_dwarf_find_unwind_table 146 ;; 147 x86_64) 148 match _U${plat}_get_elf_image 149 match _U${plat}_is_fpreg 150 match _UL${plat}_dwarf_search_unwind_table 151 match _UL${plat}_dwarf_find_unwind_table 152 match _U${plat}_setcontext 153 ;; 154 ppc*) 155 match _U${plat}_get_func_addr 156 match _U${plat}_get_elf_image 157 match _U${plat}_is_fpreg 158 match _UL${plat}_dwarf_search_unwind_table 159 match _UL${plat}_dwarf_find_unwind_table 160 ;; 161 *) 162 match _U${plat}_is_fpreg 163 match _UL${plat}_dwarf_search_unwind_table 164 match _UL${plat}_dwarf_find_unwind_table 165 ;; 166 esac 167 168 if [ x@enable_debug_frame@ = xyes ]; then 169 match _UL${plat}_dwarf_find_debug_frame 170 fi 171 172 } 173 174 check_generic_unw_abi () { 175 match _U${plat}_create_addr_space 176 match _U${plat}_destroy_addr_space 177 match _U${plat}_flush_cache 178 match _U${plat}_get_accessors 179 match _U${plat}_get_fpreg 180 match _U${plat}_get_proc_info 181 match _U${plat}_get_proc_info_by_ip 182 match _U${plat}_get_proc_name 183 match _U${plat}_get_reg 184 match _U${plat}_get_save_loc 185 match _U${plat}_init_local 186 match _U${plat}_init_remote 187 match _U${plat}_is_signal_frame 188 match _U${plat}_handle_signal_frame 189 match _U${plat}_local_addr_space 190 match _U${plat}_regname 191 match _U${plat}_resume 192 match _U${plat}_set_caching_policy 193 match _U${plat}_set_fpreg 194 match _U${plat}_set_reg 195 match _U${plat}_step 196 match _U${plat}_strerror 197 198 case ${plat} in 199 arm) 200 match _U${plat}_is_fpreg 201 match _U${plat}_get_elf_image 202 match _U${plat}_search_unwind_table 203 match _U${plat}_dwarf_search_unwind_table 204 match _U${plat}_dwarf_find_unwind_table 205 ;; 206 hppa) 207 match _U${plat}_dwarf_search_unwind_table 208 match _U${plat}_dwarf_find_unwind_table 209 match _U${plat}_get_elf_image 210 ;; 211 ia64) 212 match _U${plat}_search_unwind_table 213 match _U${plat}_find_dyn_list 214 if [ $plat = $build_plat ]; then 215 match _U${plat}_get_elf_image 216 case $os in 217 linux*) 218 match _U${plat}_get_kernel_table 219 ;; 220 esac 221 fi 222 ;; 223 x86) 224 match _U${plat}_get_elf_image 225 match _U${plat}_is_fpreg 226 match _U${plat}_dwarf_search_unwind_table 227 match _U${plat}_dwarf_find_unwind_table 228 ;; 229 x86_64) 230 match _U${plat}_get_elf_image 231 match _U${plat}_is_fpreg 232 match _U${plat}_dwarf_search_unwind_table 233 match _U${plat}_dwarf_find_unwind_table 234 ;; 235 ppc*) 236 match _U${plat}_get_elf_image 237 match _U${plat}_get_func_addr 238 match _U${plat}_is_fpreg 239 match _U${plat}_dwarf_search_unwind_table 240 match _U${plat}_dwarf_find_unwind_table 241 ;; 242 *) 243 match _U${plat}_is_fpreg 244 match _U${plat}_dwarf_search_unwind_table 245 match _U${plat}_dwarf_find_unwind_table 246 ;; 247 esac 248 249 if [ x@enable_debug_frame@ = xyes ]; then 250 match _U${plat}_dwarf_find_debug_frame 251 fi 252 } 253 254 check_cxx_abi () { 255 match _Unwind_Backtrace 256 match _Unwind_DeleteException 257 match _Unwind_FindEnclosingFunction 258 match _Unwind_ForcedUnwind 259 match _Unwind_GetBSP 260 match _Unwind_GetCFA 261 match _Unwind_GetDataRelBase 262 match _Unwind_GetGR 263 match _Unwind_GetIP 264 match _Unwind_GetIPInfo 265 match _Unwind_GetLanguageSpecificData 266 match _Unwind_GetRegionStart 267 match _Unwind_GetTextRelBase 268 match _Unwind_RaiseException 269 match _Unwind_Resume 270 match _Unwind_Resume_or_Rethrow 271 match _Unwind_SetGR 272 match _Unwind_SetIP 273 match __libunwind_Unwind_Backtrace 274 match __libunwind_Unwind_DeleteException 275 match __libunwind_Unwind_FindEnclosingFunction 276 match __libunwind_Unwind_ForcedUnwind 277 match __libunwind_Unwind_GetBSP 278 match __libunwind_Unwind_GetCFA 279 match __libunwind_Unwind_GetDataRelBase 280 match __libunwind_Unwind_GetGR 281 match __libunwind_Unwind_GetIP 282 match __libunwind_Unwind_GetIPInfo 283 match __libunwind_Unwind_GetLanguageSpecificData 284 match __libunwind_Unwind_GetRegionStart 285 match __libunwind_Unwind_GetTextRelBase 286 match __libunwind_Unwind_RaiseException 287 match __libunwind_Unwind_Resume 288 match __libunwind_Unwind_Resume_or_Rethrow 289 match __libunwind_Unwind_SetGR 290 match __libunwind_Unwind_SetIP 291 case $os in 292 linux*) 293 # needed only for Intel 8.0 bug-compatibility 294 match _ReadSLEB 295 match _ReadULEB 296 ;; 297 esac 298 } 299 300 check_empty () { 301 if [ -n "$symtab" ]; then 302 printf " ERROR: Extraneous symbols:\n$symtab\n" 303 num_errors=`expr $num_errors + 1` 304 fi 305 } 306 307 if [ $plat = $build_plat ]; then 308 fetch_symtab $LIBUNWIND 309 filter_misc 310 check_local_unw_abi 311 if [ x@enable_cxx_exceptions@ = xyes ]; then 312 check_cxx_abi 313 fi 314 check_empty 315 fi 316 317 fetch_symtab $LIBUNWIND_GENERIC 318 filter_misc 319 check_generic_unw_abi 320 check_empty 321 322 if [ $num_errors -gt 0 ]; then 323 echo "FAILURE: Detected $num_errors errors" 324 exit 1 325 fi 326 327 if $verbose; then 328 echo " SUCCESS: all checks passed" 329 fi 330 exit 0 331
