Allow building x32 DSO from x86-64 object file.
bfd/ 2011-06-08 H.J. Lu <hongjiu.lu@intel.com> * elf64-x86-64.c (elf_x86_64_check_relocs): Allow R_X86_64_64 relocations in SEC_DEBUGGING sections when building shared libraries. ld/testsuite/ 2011-06-08 H.J. Lu <hongjiu.lu@intel.com> * ld-x86-64/simple.c: New. * ld-x86-64/x86-64-x32.rd: Likewise. * ld-x86-64/x86-64.exp: Check building x32 DSO from x86-64 object file.
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@ -1,3 +1,9 @@
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2011-06-08 H.J. Lu <hongjiu.lu@intel.com>
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* elf64-x86-64.c (elf_x86_64_check_relocs): Allow R_X86_64_64
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relocations in SEC_DEBUGGING sections when building shared
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libraries.
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2011-06-08 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/12851
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@ -1217,6 +1217,13 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
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break;
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case R_X86_64_64:
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/* Allow R_X86_64_64 relocations in SEC_DEBUGGING sections
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when building shared libraries. */
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if (info->shared
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&& !info->executable
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&& (sec->flags & SEC_DEBUGGING) != 0)
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break;
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case R_X86_64_DTPOFF64:
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case R_X86_64_TPOFF64:
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case R_X86_64_PC64:
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@ -1,3 +1,11 @@
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2011-06-08 H.J. Lu <hongjiu.lu@intel.com>
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* ld-x86-64/simple.c: New.
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* ld-x86-64/x86-64-x32.rd: Likewise.
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* ld-x86-64/x86-64.exp: Check building x32 DSO from x86-64
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object file.
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2011-06-08 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/12851
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5
ld/testsuite/ld-x86-64/simple.c
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5
ld/testsuite/ld-x86-64/simple.c
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int
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foo (int x)
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{
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return x * 4;
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}
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5
ld/testsuite/ld-x86-64/x86-64-x32.rd
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5
ld/testsuite/ld-x86-64/x86-64-x32.rd
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Symbol table '\.dynsym' contains [0-9]+ entries:
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+Num: +Value +Size Type +Bind +Vis +Ndx Name
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#...
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+[0-9]+: +[0-9a-f]+ +[0-9a-f]+ +FUNC +GLOBAL +DEFAULT +[0-9]+ +foo
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#...
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@ -203,3 +203,26 @@ run_dump_test "ia32-3"
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run_dump_test "lp64-1"
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run_dump_test "lp64-2"
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run_dump_test "lp64-3"
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# Need the C compiler
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if { [which $CC] != 0 } {
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run_cc_link_tests {
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{"Helper X32 DSO from x86-64 object" "" "-m64 -fPIC -g"
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{simple.c} {} "libsimple.a"}
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}
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set convertx32 "$objcopy -O elf32-x86-64 tmpdir/simple.o tmpdir/simple-x32.o"
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send_log "$convertx32\n"
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set got [remote_exec host "$convertx32"]
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if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
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send_log "$got\n"
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fail "Convert x86-64 object to x32"
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return
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}
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run_ld_link_tests {
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{"X32 DSO from x86-64 object"
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"-shared -melf32_x86_64 tmpdir/simple-x32.o" "--x32"
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{dummy.s} {{readelf {-s --wide} x86-64-x32.rd}} "x86-64-x32"}
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}
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}
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