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      1 # Expect script for common symbol override, MIPS variation.
      2 #
      3 #   Copyright (C) 2011-2016 Free Software Foundation, Inc.
      4 #
      5 # This file is part of the GNU Binutils.
      6 #
      7 # This program is free software; you can redistribute it and/or modify
      8 # it under the terms of the GNU General Public License as published by
      9 # the Free Software Foundation; either version 3 of the License, or
     10 # (at your option) any later version.
     11 #
     12 # This program is distributed in the hope that it will be useful,
     13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15 # GNU General Public License for more details.
     16 #
     17 # You should have received a copy of the GNU General Public License
     18 # along with this program; if not, write to the Free Software
     19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     20 # MA 02110-1301, USA.
     21 #
     22 
     23 #
     24 # Written by Maciej W. Rozycki <macro (at) codesourcery.com>
     25 #
     26 
     27 # This test is for MIPS shared-library targets.
     28 if { ![istarget mips*-*-*]
     29      || ![is_elf_format]
     30      || ![check_shared_lib_support] } {
     31     return
     32 }
     33 
     34 proc mips_comm_data_test { abi flag emul reloc } {
     35 
     36     set testname "MIPS $abi/$reloc common symbol override test"
     37 
     38     # There's no "-z copyreloc" option, deal with it.
     39     set ZFLAG [string map [list copyreloc "" nocopyreloc "-z $reloc"] $reloc]
     40     set AFLAGS "$flag -EB"
     41     set LDFLAGS "-m$emul"
     42 
     43     # Define a global symbol.
     44     run_ld_link_tests [list \
     45 	[list \
     46 	    "$testname (auxiliary shared object build)" \
     47 	    "$LDFLAGS -shared" "" \
     48 	    "$AFLAGS -call_shared" \
     49 	    { ../ld-elf/comm-data1.s } \
     50 	    { \
     51 		{ readelf -s ../ld-elf/comm-data1.sd } \
     52 	    } \
     53 	  "libmips-$abi-$reloc-comm-data.so" \
     54 	] \
     55     ]
     56 
     57     # Set the pointer size according to the ABI.
     58     if { $abi == "n64" } {
     59 	append AFLAGS " --defsym ELF64=1"
     60     }
     61 
     62     # Verify that a common symbol has been converted to an undefined
     63     # reference to the global symbol of the same name defined above
     64     # and that the debug reference has been dropped.
     65     run_ld_link_tests [list \
     66 	[list \
     67 	    "$testname" \
     68 	    "$LDFLAGS $ZFLAG -T ../ld-elf/comm-data2.ld -Ltmpdir -lmips-$abi-$reloc-comm-data" "" \
     69 	    "$AFLAGS -call_nonpic" \
     70 	    { ../ld-elf/comm-data2.s } \
     71 	    { \
     72 		{ readelf -s ../ld-elf/comm-data2.sd } \
     73 		{ readelf -r ../ld-elf/comm-data2.rd } \
     74 		{ readelf "-x .debug_foo" ../ld-elf/comm-data2.xd } \
     75 	    } \
     76 	    "mips-$abi-$reloc-comm-data" \
     77 	] \
     78     ]
     79 }
     80 
     81 # For targets that default to a specific ISA (instead of "from-abi"),
     82 # the 64-bit -march option is required to override it, like for
     83 # "mipsisa32r2el-*-*".
     84 set abis { o32 -32 elf32btsmip n32 "-n32 -march=mips3" elf32btsmipn32 n64 "-64 -march=mips3" elf64btsmip }
     85 set relocs { copyreloc nocopyreloc }
     86 foreach { abi flag emul } $abis {
     87     foreach reloc $relocs {
     88 	mips_comm_data_test $abi $flag $emul $reloc
     89     }
     90 }
     91