diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 86ae224bd46..4ecd9e2dde1 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,38 @@ +2005-05-29 Richard Henderson + + * configure.in (--enable-secureplt): New. + * elf64-alpha.c (INSN_LDA, INSN_LDAH, INSN_LDQ, INSN_BR): New. + (INSN_SUBQ, INSN_S4SUBQ, INSN_JMP): New. + (INSN_A, INSN_AB, INSN_ABC, INSN_ABO, INSN_AD): New. + (elf64_alpha_use_secureplt): New. + (OLD_PLT_HEADER_SIZE, OLD_PLT_ENTRY_SIZE): New. + (NEW_PLT_HEADER_SIZE, NEW_PLT_ENTRY_SIZE): New. + (PLT_HEADER_SIZE, PLT_ENTRY_SIZE): Conditionalize on secureplt. + (ALPHA_ELF_LINK_HASH_PLT_LOC): Remove. + (struct alpha_elf_link_hash_entry): Add plt_offset. + (PLT_HEADER_WORD1, PLT_HEADER_WORD2, PLT_HEADER_WORD3): Remove. + (PLT_HEADER_WORD4, PLT_ENTRY_WORD1, PLT_ENTRY_WORD2): Remove. + (PLT_ENTRY_WORD3): Remove. + (elf64_alpha_create_dynamic_sections): If secureplt, set SEC_READONLY + on .plt and create .got.plt. + (elf64_alpha_output_extsym): Remove .plt frobbing for symbol values. + (get_got_entry): Initialize plt_offset. + (elf64_alpha_want_plt): New. + (elf64_alpha_check_relocs): Use it. + (elf64_alpha_adjust_dynamic_symbol): Likewise. Don't allocate + plt entries here. + (elf64_alpha_calc_got_offsets_for_symbol): Don't report internal + error as user error. + (elf64_alpha_size_plt_section_1): Allocate one plt entry per + got subsection. + (elf64_alpha_size_plt_section): Size .got.plt section. + (elf64_alpha_size_rela_got_1): Don't allocate relocations if + plt entries used. + (elf64_alpha_size_dynamic_sections): Call elf64_alpha_size_plt_section. + Add PLTRO DYNAMIC entry. + (elf64_alpha_finish_dynamic_symbol): Generate secureplt format. + (elf64_alpha_finish_dynamic_sections): Likewise. + 2005-05-28 David Daney * elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections): Move @@ -10,7 +45,7 @@ * config.in, configure: Regenerate. 2005-05-26 Mark Kettenis - Maciej W. Rozycki + Maciej W. Rozycki * elfxx-mips.c (_bfd_mips_elf_section_processing): Warn and stop processing of options if one of invalid size is diff --git a/bfd/config.in b/bfd/config.in index 0b1e26e971f..0c1593835ee 100644 --- a/bfd/config.in +++ b/bfd/config.in @@ -345,6 +345,9 @@ /* Use mmap if it's available? */ #undef USE_MMAP +/* Define if we should default to creating read-only plt entries */ +#undef USE_SECUREPLT + /* Version number of package */ #undef VERSION diff --git a/bfd/configure b/bfd/configure index aee02a19c7b..bf85e502906 100755 --- a/bfd/configure +++ b/bfd/configure @@ -859,6 +859,7 @@ Optional Features: --enable-64-bit-bfd 64-bit support (on hosts with narrower word sizes) --enable-targets alternative target configurations --enable-commonbfdlib build shared BFD/opcodes/libiberty library + --enable-secureplt Default to creating read-only plt entries --enable-werror treat compile warnings as errors --enable-build-warnings Enable build-time compiler warnings --enable-maintainer-mode enable make rules and dependencies not useful @@ -974,7 +975,7 @@ esac else echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2 fi - cd $ac_popdir + cd "$ac_popdir" done fi @@ -1998,8 +1999,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -2057,8 +2057,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -2174,8 +2173,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -2229,8 +2227,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -2275,8 +2272,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -2320,8 +2316,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -2399,8 +2394,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -2454,8 +2448,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -3975,7 +3968,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic" case $host in *-*-irix6*) # Find out which ABI we are using. - echo '#line 3978 "configure"' > conftest.$ac_ext + echo '#line 3971 "configure"' > conftest.$ac_ext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? @@ -4071,8 +4064,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -4263,6 +4255,26 @@ esac else want_mmap=false fi; +# Check whether --enable-secureplt or --disable-secureplt was given. +if test "${enable_secureplt+set}" = set; then + enableval="$enable_secureplt" + case "${enableval}" in + yes) use_secureplt=true ;; + no) use_secureplt=false ;; + *) { { echo "$as_me:$LINENO: error: bad value ${enableval} for secureplt option" >&5 +echo "$as_me: error: bad value ${enableval} for secureplt option" >&2;} + { (exit 1); exit 1; }; } ;; +esac +else + use_secureplt=false +fi; if test $use_secureplt = true; then + +cat >>confdefs.h <<\_ACEOF +#define USE_SECUREPLT 1 +_ACEOF + +fi + WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes" @@ -4775,8 +4787,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -4834,8 +4845,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -4951,8 +4961,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5006,8 +5015,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5052,8 +5060,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5097,8 +5104,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5508,8 +5514,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5716,8 +5721,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5777,8 +5781,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5857,8 +5860,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5923,8 +5925,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -5989,8 +5990,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -6054,8 +6054,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -6136,8 +6135,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -6278,8 +6276,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -6417,8 +6414,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -6602,8 +6598,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -6854,8 +6849,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7049,8 +7043,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7153,8 +7146,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7225,8 +7217,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7323,8 +7314,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7460,8 +7450,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7525,8 +7514,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7581,8 +7569,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7722,8 +7709,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -7856,8 +7842,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8134,8 +8119,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8407,8 +8391,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8466,8 +8449,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8529,8 +8511,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8570,8 +8551,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8627,8 +8607,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8668,8 +8647,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8733,8 +8711,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8765,10 +8742,8 @@ See \`config.log' for more details." >&2;} esac else if test "$cross_compiling" = yes; then - { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling -See \`config.log' for more details." >&5 -echo "$as_me: error: cannot run test program while cross compiling -See \`config.log' for more details." >&2;} + { { echo "$as_me:$LINENO: error: internal error: not reached in cross-compile" >&5 +echo "$as_me: error: internal error: not reached in cross-compile" >&2;} { (exit 1); exit 1; }; } else cat >conftest.$ac_ext <<_ACEOF @@ -8882,8 +8857,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8945,8 +8919,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -8986,8 +8959,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9043,8 +9015,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9084,8 +9055,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9149,8 +9119,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9181,10 +9150,8 @@ See \`config.log' for more details." >&2;} esac else if test "$cross_compiling" = yes; then - { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling -See \`config.log' for more details." >&5 -echo "$as_me: error: cannot run test program while cross compiling -See \`config.log' for more details." >&2;} + { { echo "$as_me:$LINENO: error: internal error: not reached in cross-compile" >&5 +echo "$as_me: error: internal error: not reached in cross-compile" >&2;} { (exit 1); exit 1; }; } else cat >conftest.$ac_ext <<_ACEOF @@ -9363,8 +9330,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9515,8 +9481,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9664,8 +9629,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9736,8 +9700,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9809,8 +9772,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9864,8 +9826,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9936,8 +9897,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -9991,8 +9951,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10056,8 +10015,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10163,8 +10121,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10265,8 +10222,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10331,8 +10287,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10403,8 +10358,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10475,8 +10429,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10547,8 +10500,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10619,8 +10571,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10702,8 +10653,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10774,8 +10724,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10846,8 +10795,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10918,8 +10866,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -10990,8 +10937,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11062,8 +11008,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11134,8 +11079,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11206,8 +11150,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11278,8 +11221,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11506,8 +11448,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11627,8 +11568,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11775,8 +11715,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11840,8 +11779,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11905,8 +11843,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -11970,8 +11907,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12035,8 +11971,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12100,8 +12035,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12165,8 +12099,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12230,8 +12163,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12295,8 +12227,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12360,8 +12291,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12425,8 +12355,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12490,8 +12419,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12555,8 +12483,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12620,8 +12547,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12685,8 +12611,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -12750,8 +12675,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13371,8 +13295,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13437,8 +13360,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13500,8 +13422,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13541,8 +13462,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13598,8 +13518,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13639,8 +13558,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13704,8 +13622,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -13736,10 +13653,8 @@ See \`config.log' for more details." >&2;} esac else if test "$cross_compiling" = yes; then - { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling -See \`config.log' for more details." >&5 -echo "$as_me: error: cannot run test program while cross compiling -See \`config.log' for more details." >&2;} + { { echo "$as_me:$LINENO: error: internal error: not reached in cross-compile" >&5 +echo "$as_me: error: internal error: not reached in cross-compile" >&2;} { (exit 1); exit 1; }; } else cat >conftest.$ac_ext <<_ACEOF @@ -13878,8 +13793,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -14063,8 +13977,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -14341,8 +14254,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -15323,11 +15235,6 @@ esac *) ac_INSTALL=$ac_top_builddir$INSTALL ;; esac - if test x"$ac_file" != x-; then - { echo "$as_me:$LINENO: creating $ac_file" >&5 -echo "$as_me: creating $ac_file" >&6;} - rm -f "$ac_file" - fi # Let's still pretend it is `configure' which instantiates (i.e., don't # use $as_me), people would be surprised to read: # /* config.h. Generated by config.status. */ @@ -15366,6 +15273,12 @@ echo "$as_me: error: cannot find input file: $f" >&2;} fi;; esac done` || { (exit 1); exit 1; } + + if test x"$ac_file" != x-; then + { echo "$as_me:$LINENO: creating $ac_file" >&5 +echo "$as_me: creating $ac_file" >&6;} + rm -f "$ac_file" + fi _ACEOF cat >>$CONFIG_STATUS <<_ACEOF sed "$ac_vpsub diff --git a/bfd/configure.in b/bfd/configure.in index 6ae0e22c073..7664a2cdf86 100644 --- a/bfd/configure.in +++ b/bfd/configure.in @@ -51,6 +51,18 @@ AC_ARG_WITH(mmap, *) AC_MSG_ERROR(bad value ${withval} for BFD with-mmap option) ;; esac],[want_mmap=false])dnl +AC_ARG_ENABLE(secureplt, +[ --enable-secureplt Default to creating read-only plt entries], +[case "${enableval}" in + yes) use_secureplt=true ;; + no) use_secureplt=false ;; + *) AC_MSG_ERROR(bad value ${enableval} for secureplt option) ;; +esac],[use_secureplt=false])dnl +if test $use_secureplt = true; then + AC_DEFINE(USE_SECUREPLT, 1, + [Define if we should default to creating read-only plt entries]) +fi + AM_BINUTILS_WARNINGS AM_CONFIG_HEADER(config.h:config.in) diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c index de8a90c3331..03de6c53786 100644 --- a/bfd/elf64-alpha.c +++ b/bfd/elf64-alpha.c @@ -47,6 +47,59 @@ #define ECOFF_64 #include "ecoffswap.h" + +/* Instruction data for plt generation and relaxation. */ + +#define OP_LDA 0x08 +#define OP_LDAH 0x09 +#define OP_LDQ 0x29 +#define OP_BR 0x30 +#define OP_BSR 0x34 + +#define INSN_LDA (OP_LDA << 26) +#define INSN_LDAH (OP_LDAH << 26) +#define INSN_LDQ (OP_LDQ << 26) +#define INSN_BR (OP_BR << 26) + +#define INSN_ADDQ 0x40000400 +#define INSN_RDUNIQ 0x0000009e +#define INSN_SUBQ 0x40000520 +#define INSN_S4SUBQ 0x40000560 +#define INSN_UNOP 0x2ffe0000 + +#define INSN_JSR 0x68004000 +#define INSN_JMP 0x68000000 +#define INSN_JSR_MASK 0xfc00c000 + +#define INSN_A(I,A) (I | (A << 21)) +#define INSN_AB(I,A,B) (I | (A << 21) | (B << 16)) +#define INSN_ABC(I,A,B,C) (I | (A << 21) | (B << 16) | C) +#define INSN_ABO(I,A,B,O) (I | (A << 21) | (B << 16) | ((O) & 0xffff)) +#define INSN_AD(I,A,D) (I | (A << 21) | (((D) >> 2) & 0x1fffff)) + +/* PLT/GOT Stuff */ + +/* Set by ld emulation. Putting this into the link_info or hash structure + is simply working too hard. */ +#ifdef USE_SECUREPLT +bfd_boolean elf64_alpha_use_secureplt = TRUE; +#else +bfd_boolean elf64_alpha_use_secureplt = FALSE; +#endif + +#define OLD_PLT_HEADER_SIZE 32 +#define OLD_PLT_ENTRY_SIZE 12 +#define NEW_PLT_HEADER_SIZE 36 +#define NEW_PLT_ENTRY_SIZE 4 + +#define PLT_HEADER_SIZE \ + (elf64_alpha_use_secureplt ? NEW_PLT_HEADER_SIZE : OLD_PLT_HEADER_SIZE) +#define PLT_ENTRY_SIZE \ + (elf64_alpha_use_secureplt ? NEW_PLT_ENTRY_SIZE : OLD_PLT_ENTRY_SIZE) + +#define MAX_GOT_SIZE (64*1024) + +#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so" struct alpha_elf_link_hash_entry { @@ -67,7 +120,6 @@ struct alpha_elf_link_hash_entry #define ALPHA_ELF_LINK_HASH_LU_TLSLDM 0x20 #define ALPHA_ELF_LINK_HASH_LU_FUNC 0x38 #define ALPHA_ELF_LINK_HASH_TLS_IE 0x40 -#define ALPHA_ELF_LINK_HASH_PLT_LOC 0x80 /* Used to implement multiple .got subsections. */ struct alpha_elf_got_entry @@ -83,6 +135,9 @@ struct alpha_elf_link_hash_entry /* The .got offset for this entry. */ int got_offset; + /* The .plt offset for this entry. */ + int plt_offset; + /* How many references to this entry? */ int use_count; @@ -1021,22 +1076,6 @@ elf64_alpha_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, - align_power ((bfd_vma) 16, \ elf_hash_table (info)->tls_sec->alignment_power)) -/* PLT/GOT Stuff */ -#define PLT_HEADER_SIZE 32 -#define PLT_HEADER_WORD1 (bfd_vma) 0xc3600000 /* br $27,.+4 */ -#define PLT_HEADER_WORD2 (bfd_vma) 0xa77b000c /* ldq $27,12($27) */ -#define PLT_HEADER_WORD3 (bfd_vma) 0x47ff041f /* nop */ -#define PLT_HEADER_WORD4 (bfd_vma) 0x6b7b0000 /* jmp $27,($27) */ - -#define PLT_ENTRY_SIZE 12 -#define PLT_ENTRY_WORD1 0xc3800000 /* br $28, plt0 */ -#define PLT_ENTRY_WORD2 0 -#define PLT_ENTRY_WORD3 0 - -#define MAX_GOT_SIZE (64*1024) - -#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so" - /* Handle an Alpha specific section when reading an object file. This is called when bfd_section_from_shdr finds a section with an unknown type. @@ -1199,13 +1238,13 @@ elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) /* We need to create .plt, .rela.plt, .got, and .rela.got sections. */ s = bfd_make_section_with_flags (abfd, ".plt", - (SEC_ALLOC | SEC_LOAD + (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED - | SEC_CODE)); - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, 3)) + | (elf64_alpha_use_secureplt + ? SEC_READONLY : 0))); + if (s == NULL || ! bfd_set_section_alignment (abfd, s, 4)) return FALSE; /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the @@ -1220,8 +1259,7 @@ elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) h->def_regular = 1; h->type = STT_OBJECT; - if (info->shared - && ! bfd_elf_link_record_dynamic_symbol (info, h)) + if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h)) return FALSE; s = bfd_make_section_with_flags (abfd, ".rela.plt", @@ -1230,10 +1268,17 @@ elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | SEC_IN_MEMORY | SEC_LINKER_CREATED | SEC_READONLY)); - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, 3)) + if (s == NULL || ! bfd_set_section_alignment (abfd, s, 3)) return FALSE; + if (elf64_alpha_use_secureplt) + { + s = bfd_make_section_with_flags (abfd, ".got.plt", + SEC_ALLOC | SEC_LINKER_CREATED); + if (s == NULL || ! bfd_set_section_alignment (abfd, s, 3)) + return FALSE; + } + /* We may or may not have created a .got section for this object, but we definitely havn't done the rest of the work. */ @@ -1588,24 +1633,6 @@ elf64_alpha_output_extsym (struct alpha_elf_link_hash_entry *h, PTR data) else h->esym.asym.value = 0; } - else if (h->root.needs_plt) - { - /* Set type and value for a symbol with a function stub. */ - h->esym.asym.st = stProc; - sec = bfd_get_section_by_name (einfo->abfd, ".plt"); - if (sec == NULL) - h->esym.asym.value = 0; - else - { - output_section = sec->output_section; - if (output_section != NULL) - h->esym.asym.value = (h->root.plt.offset - + sec->output_offset - + output_section->vma); - else - h->esym.asym.value = 0; - } - } if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap, h->root.root.root.string, @@ -1676,6 +1703,7 @@ get_got_entry (bfd *abfd, struct alpha_elf_link_hash_entry *h, gotent->gotobj = abfd; gotent->addend = r_addend; gotent->got_offset = -1; + gotent->plt_offset = -1; gotent->use_count = 1; gotent->reloc_type = r_type; gotent->reloc_done = 0; @@ -1695,6 +1723,16 @@ get_got_entry (bfd *abfd, struct alpha_elf_link_hash_entry *h, return gotent; } +static bfd_boolean +elf64_alpha_want_plt (struct alpha_elf_link_hash_entry *ah) +{ + return ((ah->root.type == STT_FUNC + || ah->root.root.type == bfd_link_hash_undefweak + || ah->root.root.type == bfd_link_hash_undefined) + && (ah->flags & ALPHA_ELF_LINK_HASH_LU_FUNC) != 0 + && (ah->flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC) == 0); +} + /* Handle dynamic relocations when doing an Alpha ELF link. */ static bfd_boolean @@ -1874,12 +1912,13 @@ elf64_alpha_check_relocs (bfd *abfd, struct bfd_link_info *info, h->flags = gotent_flags; /* Make a guess as to whether a .plt entry is needed. */ - if ((gotent_flags & ALPHA_ELF_LINK_HASH_LU_FUNC) - && !(gotent_flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC)) - h->root.needs_plt = 1; - else - h->root.needs_plt = 0; - } + /* ??? It appears that we won't make it into + adjust_dynamic_symbol for symbols that remain + totally undefined. Copying this check here means + we can create a plt entry for them too. */ + h->root.needs_plt + = (maybe_dynamic && elf64_alpha_want_plt (h)); + } } } @@ -1986,42 +2025,26 @@ elf64_alpha_adjust_dynamic_symbol (struct bfd_link_info *info, ah = (struct alpha_elf_link_hash_entry *)h; /* Now that we've seen all of the input symbols, finalize our decision - about whether this symbol should get a .plt entry. */ - - if (alpha_elf_dynamic_symbol_p (h, info) - && ((h->type == STT_FUNC - && !(ah->flags & ALPHA_ELF_LINK_HASH_LU_ADDR)) - || (h->type == STT_NOTYPE - && (ah->flags & ALPHA_ELF_LINK_HASH_LU_FUNC) - && !(ah->flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC))) - /* Don't prevent otherwise valid programs from linking by attempting - to create a new .got entry somewhere. A Correct Solution would be - to add a new .got section to a new object file and let it be merged - somewhere later. But for now don't bother. */ - && ah->got_entries) + about whether this symbol should get a .plt entry. Irritatingly, it + is common for folk to leave undefined symbols in shared libraries, + and they still expect lazy binding; accept undefined symbols in lieu + of STT_FUNC. */ + if (alpha_elf_dynamic_symbol_p (h, info) && elf64_alpha_want_plt (ah)) { - h->needs_plt = 1; + h->needs_plt = TRUE; s = bfd_get_section_by_name(dynobj, ".plt"); if (!s && !elf64_alpha_create_dynamic_sections (dynobj, info)) return FALSE; - /* The first bit of the .plt is reserved. */ - if (s->size == 0) - s->size = PLT_HEADER_SIZE; - - h->plt.offset = s->size; - s->size += PLT_ENTRY_SIZE; - - /* We also need a JMP_SLOT entry in the .rela.plt section. */ - s = bfd_get_section_by_name (dynobj, ".rela.plt"); - BFD_ASSERT (s != NULL); - s->size += sizeof (Elf64_External_Rela); + /* We need one plt entry per got subsection. Delay allocation of + the actual plt entries until size_plt_section, called from + size_dynamic_sections or during relaxation. */ return TRUE; } else - h->needs_plt = 0; + h->needs_plt = FALSE; /* If this is a weak symbol, and there is a real definition, the processor independent code will have arranged for us to see the @@ -2284,7 +2307,6 @@ static bfd_boolean elf64_alpha_calc_got_offsets_for_symbol (struct alpha_elf_link_hash_entry *h, PTR arg ATTRIBUTE_UNUSED) { - bfd_boolean result = TRUE; struct alpha_elf_got_entry *gotent; if (h->root.root.type == bfd_link_hash_warning) @@ -2297,19 +2319,12 @@ elf64_alpha_calc_got_offsets_for_symbol (struct alpha_elf_link_hash_entry *h, bfd_size_type *plge; td = alpha_elf_tdata (gotent->gotobj); - if (td == NULL) - { - _bfd_error_handler (_("Symbol %s has no GOT subsection for offset 0x%x"), - h->root.root.root.string, gotent->got_offset); - result = FALSE; - continue; - } plge = &td->got->size; gotent->got_offset = *plge; *plge += alpha_got_entry_size (gotent->reloc_type); } - return result; + return TRUE; } static void @@ -2438,31 +2453,27 @@ elf64_alpha_size_plt_section_1 (struct alpha_elf_link_hash_entry *h, PTR data) { asection *splt = (asection *) data; struct alpha_elf_got_entry *gotent; + bfd_boolean saw_one = FALSE; /* If we didn't need an entry before, we still don't. */ if (!h->root.needs_plt) return TRUE; - /* There must still be a LITERAL got entry for the function. */ + /* For each LITERAL got entry still in use, allocate a plt entry. */ for (gotent = h->got_entries; gotent ; gotent = gotent->next) if (gotent->reloc_type == R_ALPHA_LITERAL && gotent->use_count > 0) - break; + { + if (splt->size == 0) + splt->size = PLT_HEADER_SIZE; + gotent->plt_offset = splt->size; + splt->size += PLT_ENTRY_SIZE; + saw_one = TRUE; + } - /* If there is, reset the PLT offset. If not, there's no longer - a need for the PLT entry. */ - if (gotent) - { - if (splt->size == 0) - splt->size = PLT_HEADER_SIZE; - h->root.plt.offset = splt->size; - splt->size += PLT_ENTRY_SIZE; - } - else - { - h->root.needs_plt = 0; - h->root.plt.offset = -1; - } + /* If there weren't any, there's no longer a need for the PLT entry. */ + if (!saw_one) + h->root.needs_plt = FALSE; return TRUE; } @@ -2473,12 +2484,12 @@ elf64_alpha_size_plt_section_1 (struct alpha_elf_link_hash_entry *h, PTR data) static bfd_boolean elf64_alpha_size_plt_section (struct bfd_link_info *info) { - asection *splt, *spltrel; + asection *splt, *spltrel, *sgotplt; unsigned long entries; bfd *dynobj; dynobj = elf_hash_table(info)->dynobj; - splt = bfd_get_section_by_name(dynobj, ".plt"); + splt = bfd_get_section_by_name (dynobj, ".plt"); if (splt == NULL) return TRUE; @@ -2490,11 +2501,25 @@ elf64_alpha_size_plt_section (struct bfd_link_info *info) /* Every plt entry requires a JMP_SLOT relocation. */ spltrel = bfd_get_section_by_name (dynobj, ".rela.plt"); if (splt->size) - entries = (splt->size - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; + { + if (elf64_alpha_use_secureplt) + entries = (splt->size - NEW_PLT_HEADER_SIZE) / NEW_PLT_ENTRY_SIZE; + else + entries = (splt->size - OLD_PLT_HEADER_SIZE) / OLD_PLT_ENTRY_SIZE; + } else entries = 0; spltrel->size = entries * sizeof (Elf64_External_Rela); + /* When using the secureplt, we need two words somewhere in the data + segment for the dynamic linker to tell us where to go. This is the + entire contents of the .got.plt section. */ + if (elf64_alpha_use_secureplt) + { + sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); + sgotplt->size = entries ? 16 : 0; + } + return TRUE; } @@ -2631,6 +2656,11 @@ elf64_alpha_size_rela_got_1 (struct alpha_elf_link_hash_entry *h, if (h->root.root.type == bfd_link_hash_warning) h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link; + /* If we're using a plt for this symbol, then all of its relocations + for its got entries go into .rela.plt. */ + if (h->root.needs_plt) + return TRUE; + /* If the symbol is dynamic, we'll need all the relocations in their natural form. If this is a shared object, and it has been forced local, we'll need the same number of RELATIVE relocations. */ @@ -2648,11 +2678,6 @@ elf64_alpha_size_rela_got_1 (struct alpha_elf_link_hash_entry *h, entries += alpha_dynamic_entries_for_reloc (gotent->reloc_type, dynamic, info->shared); - /* If we are using a .plt entry, subtract one, as the first - reference uses a .rela.plt entry instead. */ - if (h->root.plt.offset != MINUS_ONE) - entries--; - if (entries > 0) { bfd *dynobj = elf_hash_table(info)->dynobj; @@ -2748,6 +2773,7 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, elf64_alpha_calc_dynrel_sizes, info); elf64_alpha_size_rela_got_section (info); + elf64_alpha_size_plt_section (info); } /* else we're not dynamic and by definition we don't need such things. */ @@ -2831,6 +2857,10 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, || !add_dynamic_entry (DT_PLTREL, DT_RELA) || !add_dynamic_entry (DT_JMPREL, 0)) return FALSE; + + if (elf64_alpha_use_secureplt + && !add_dynamic_entry (DT_ALPHA_PLTRO, 1)) + return FALSE; } if (!add_dynamic_entry (DT_RELA, 0) @@ -2862,17 +2892,6 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, related to Alpha in particular. They are by David Wall, then of DEC WRL. */ -#define OP_LDA 0x08 -#define OP_LDAH 0x09 -#define INSN_JSR 0x68004000 -#define INSN_JSR_MASK 0xfc00c000 -#define OP_LDQ 0x29 -#define OP_BR 0x30 -#define OP_BSR 0x34 -#define INSN_UNOP 0x2ffe0000 -#define INSN_ADDQ 0x40000400 -#define INSN_RDUNIQ 0x0000009e - struct alpha_relax_info { bfd *abfd; @@ -4599,9 +4618,10 @@ elf64_alpha_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, struct elf_link_hash_entry *h, Elf_Internal_Sym *sym) { + struct alpha_elf_link_hash_entry *ah = (struct alpha_elf_link_hash_entry *)h; bfd *dynobj = elf_hash_table(info)->dynobj; - if (h->plt.offset != MINUS_ONE) + if (h->needs_plt) { /* Fill in the .plt entry for this symbol. */ asection *splt, *sgot, *srel; @@ -4613,83 +4633,71 @@ elf64_alpha_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, BFD_ASSERT (h->dynindx != -1); - /* The first .got entry will be updated by the .plt with the - address of the target function. */ - gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries; - BFD_ASSERT (gotent && gotent->addend == 0); - splt = bfd_get_section_by_name (dynobj, ".plt"); BFD_ASSERT (splt != NULL); srel = bfd_get_section_by_name (dynobj, ".rela.plt"); BFD_ASSERT (srel != NULL); - sgot = alpha_elf_tdata (gotent->gotobj)->got; - BFD_ASSERT (sgot != NULL); - got_addr = (sgot->output_section->vma - + sgot->output_offset - + gotent->got_offset); - plt_addr = (splt->output_section->vma - + splt->output_offset - + h->plt.offset); + for (gotent = ah->got_entries; gotent ; gotent = gotent->next) + if (gotent->reloc_type == R_ALPHA_LITERAL + && gotent->use_count > 0) + { + unsigned int insn; + int disp; - plt_index = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; + sgot = alpha_elf_tdata (gotent->gotobj)->got; + BFD_ASSERT (sgot != NULL); - /* Fill in the entry in the procedure linkage table. */ - { - bfd_vma insn1, insn2, insn3; + BFD_ASSERT (gotent->got_offset != -1); + BFD_ASSERT (gotent->plt_offset != -1); - insn1 = PLT_ENTRY_WORD1 | ((-(h->plt.offset + 4) >> 2) & 0x1fffff); - insn2 = PLT_ENTRY_WORD2; - insn3 = PLT_ENTRY_WORD3; + got_addr = (sgot->output_section->vma + + sgot->output_offset + + gotent->got_offset); + plt_addr = (splt->output_section->vma + + splt->output_offset + + gotent->plt_offset); - bfd_put_32 (output_bfd, insn1, splt->contents + h->plt.offset); - bfd_put_32 (output_bfd, insn2, splt->contents + h->plt.offset + 4); - bfd_put_32 (output_bfd, insn3, splt->contents + h->plt.offset + 8); - } + plt_index = (gotent->plt_offset-PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; - /* Fill in the entry in the .rela.plt section. */ - outrel.r_offset = got_addr; - outrel.r_info = ELF64_R_INFO(h->dynindx, R_ALPHA_JMP_SLOT); - outrel.r_addend = 0; + /* Fill in the entry in the procedure linkage table. */ + if (elf64_alpha_use_secureplt) + { + disp = (PLT_HEADER_SIZE - 4) - (gotent->plt_offset + 4); + insn = INSN_AD (INSN_BR, 31, disp); + bfd_put_32 (output_bfd, insn, + splt->contents + gotent->plt_offset); - loc = srel->contents + plt_index * sizeof (Elf64_External_Rela); - bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); + plt_index = ((gotent->plt_offset - NEW_PLT_HEADER_SIZE) + / NEW_PLT_ENTRY_SIZE); + } + else + { + disp = -(gotent->plt_offset + 4); + insn = INSN_AD (INSN_BR, 28, disp); + bfd_put_32 (output_bfd, insn, + splt->contents + gotent->plt_offset); + bfd_put_32 (output_bfd, INSN_UNOP, + splt->contents + gotent->plt_offset + 4); + bfd_put_32 (output_bfd, INSN_UNOP, + splt->contents + gotent->plt_offset + 8); - if (!h->def_regular) - { - /* Mark the symbol as undefined, rather than as defined in the - .plt section. Leave the value alone. */ - sym->st_shndx = SHN_UNDEF; - } + plt_index = ((gotent->plt_offset - OLD_PLT_HEADER_SIZE) + / OLD_PLT_ENTRY_SIZE); + } - /* Fill in the entries in the .got. */ - bfd_put_64 (output_bfd, plt_addr, sgot->contents + gotent->got_offset); + /* Fill in the entry in the .rela.plt section. */ + outrel.r_offset = got_addr; + outrel.r_info = ELF64_R_INFO(h->dynindx, R_ALPHA_JMP_SLOT); + outrel.r_addend = 0; - /* Subsequent .got entries will continue to bounce through the .plt. */ - if (gotent->next) - { - srel = bfd_get_section_by_name (dynobj, ".rela.got"); - BFD_ASSERT (! info->shared || srel != NULL); + loc = srel->contents + plt_index * sizeof (Elf64_External_Rela); + bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); - gotent = gotent->next; - do - { - sgot = alpha_elf_tdata(gotent->gotobj)->got; - BFD_ASSERT(sgot != NULL); - BFD_ASSERT(gotent->addend == 0); - - bfd_put_64 (output_bfd, plt_addr, - sgot->contents + gotent->got_offset); - - if (info->shared) - elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel, - gotent->got_offset, 0, - R_ALPHA_RELATIVE, plt_addr); - - gotent = gotent->next; - } - while (gotent != NULL); - } + /* Fill in the entry in the .got. */ + bfd_put_64 (output_bfd, plt_addr, + sgot->contents + gotent->got_offset); + } } else if (alpha_elf_dynamic_symbol_p (h, info)) { @@ -4766,33 +4774,45 @@ elf64_alpha_finish_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { - asection *splt; + asection *splt, *sgotplt, *srelaplt; Elf64_External_Dyn *dyncon, *dynconend; + bfd_vma plt_vma, gotplt_vma; splt = bfd_get_section_by_name (dynobj, ".plt"); + srelaplt = bfd_get_section_by_name (output_bfd, ".rela.plt"); BFD_ASSERT (splt != NULL && sdyn != NULL); + plt_vma = splt->output_section->vma + splt->output_offset; + + gotplt_vma = 0; + if (elf64_alpha_use_secureplt) + { + sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); + BFD_ASSERT (sgotplt != NULL); + if (sgotplt->size > 0) + gotplt_vma = sgotplt->output_section->vma + sgotplt->output_offset; + } + dyncon = (Elf64_External_Dyn *) sdyn->contents; dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); for (; dyncon < dynconend; dyncon++) { Elf_Internal_Dyn dyn; - const char *name; - asection *s; bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); switch (dyn.d_tag) { case DT_PLTGOT: - name = ".plt"; - goto get_vma; + dyn.d_un.d_ptr + = elf64_alpha_use_secureplt ? gotplt_vma : plt_vma; + break; case DT_PLTRELSZ: - name = ".rela.plt"; - goto get_size; + dyn.d_un.d_val = srelaplt ? srelaplt->size : 0; + break; case DT_JMPREL: - name = ".rela.plt"; - goto get_vma; + dyn.d_un.d_ptr = srelaplt ? srelaplt->vma : 0; + break; case DT_RELASZ: /* My interpretation of the TIS v1.1 ELF document indicates @@ -4800,36 +4820,69 @@ elf64_alpha_finish_dynamic_sections (bfd *output_bfd, the rest of the BFD does. It is, however, what the glibc ld.so wants. Do this fixup here until we found out who is right. */ - s = bfd_get_section_by_name (output_bfd, ".rela.plt"); - if (s) - dyn.d_un.d_val -= s->size; - break; - - get_vma: - s = bfd_get_section_by_name (output_bfd, name); - dyn.d_un.d_ptr = (s ? s->vma : 0); - break; - - get_size: - s = bfd_get_section_by_name (output_bfd, name); - dyn.d_un.d_val = s->size; + if (srelaplt) + dyn.d_un.d_val -= srelaplt->size; break; } bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); } - /* Initialize the PLT0 entry. */ + /* Initialize the plt header. */ if (splt->size > 0) { - bfd_put_32 (output_bfd, PLT_HEADER_WORD1, splt->contents); - bfd_put_32 (output_bfd, PLT_HEADER_WORD2, splt->contents + 4); - bfd_put_32 (output_bfd, PLT_HEADER_WORD3, splt->contents + 8); - bfd_put_32 (output_bfd, PLT_HEADER_WORD4, splt->contents + 12); + unsigned int insn; + int ofs; - /* The next two words will be filled in by ld.so */ - bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 16); - bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 24); + if (elf64_alpha_use_secureplt) + { + ofs = gotplt_vma - (plt_vma + PLT_HEADER_SIZE); + + insn = INSN_ABC (INSN_SUBQ, 27, 28, 25); + bfd_put_32 (output_bfd, insn, splt->contents); + + insn = INSN_ABO (INSN_LDAH, 28, 28, (ofs + 0x8000) >> 16); + bfd_put_32 (output_bfd, insn, splt->contents + 4); + + insn = INSN_ABC (INSN_S4SUBQ, 25, 25, 25); + bfd_put_32 (output_bfd, insn, splt->contents + 8); + + insn = INSN_ABO (INSN_LDA, 28, 28, ofs); + bfd_put_32 (output_bfd, insn, splt->contents + 12); + + insn = INSN_ABO (INSN_LDQ, 27, 28, 0); + bfd_put_32 (output_bfd, insn, splt->contents + 16); + + insn = INSN_ABC (INSN_ADDQ, 25, 25, 25); + bfd_put_32 (output_bfd, insn, splt->contents + 20); + + insn = INSN_ABO (INSN_LDQ, 28, 28, 8); + bfd_put_32 (output_bfd, insn, splt->contents + 24); + + insn = INSN_AB (INSN_JMP, 31, 27); + bfd_put_32 (output_bfd, insn, splt->contents + 28); + + insn = INSN_AD (INSN_BR, 28, -PLT_HEADER_SIZE); + bfd_put_32 (output_bfd, insn, splt->contents + 32); + } + else + { + insn = INSN_AD (INSN_BR, 27, 0); /* br $27, .+4 */ + bfd_put_32 (output_bfd, insn, splt->contents); + + insn = INSN_ABO (INSN_LDQ, 27, 27, 12); + bfd_put_32 (output_bfd, insn, splt->contents + 4); + + insn = INSN_UNOP; + bfd_put_32 (output_bfd, insn, splt->contents + 8); + + insn = INSN_AB (INSN_JMP, 27, 27); + bfd_put_32 (output_bfd, insn, splt->contents + 12); + + /* The next two words will be filled in by ld.so. */ + bfd_put_64 (output_bfd, 0, splt->contents + 16); + bfd_put_64 (output_bfd, 0, splt->contents + 24); + } elf_section_data (splt->output_section)->this_hdr.sh_entsize = 0; }