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author | Cary Coutant <ccoutant@google.com> | 2008-04-11 21:24:30 +0000 |
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committer | Cary Coutant <ccoutant@google.com> | 2008-04-11 21:24:30 +0000 |
commit | c2b45e22d5570064d11783c46bc392cb8d387db4 (patch) | |
tree | 2bf8e341da1070ab3f6b11b0f06823cc8c5a47d8 /gold/configure.ac | |
parent | 83bfb6b77648bdee37ca84fe240e8b0a229e8f77 (diff) | |
download | ppe42-binutils-c2b45e22d5570064d11783c46bc392cb8d387db4.tar.gz ppe42-binutils-c2b45e22d5570064d11783c46bc392cb8d387db4.zip |
2008-04-11 Cary Coutant <ccoutant@google.com>
Add support for TLS descriptors for i386 and x86_64.
* i386.cc (Target_i386::Relocate::tls_desc_gd_to_ie): New function.
(Target_i386::Relocate::tls_desc_gd_to_le): New function.
(Target_i386::Got_type): Add GOT_TYPE_TLS_NOFFSET and
GOT_TYPE_TLS_DESC.
(Target_i386::got_mod_index_entry): Remove unnecessary code.
(Target_i386::Scan::local): Implement R_386_TLS_GOTDESC and
R_386_TLS_DESC_CALL relocations. Fix problem with initial-exec
relocations.
(Target_i386::Scan::global): Fix problem with GD-to-IE relaxation.
Implement R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL relocations;
Fix problem with initial-exec relocations.
(Target_i386::Relocate::relocate_tls): Likewise.
(Target_i386::Relocate::tls_gd_to_ie): Fix problem with GD-to-IE
relaxation.
* output.cc (Output_data_dynamic::Dynamic_entry::write): Add
support for section-plus-offset dynamic table entries.
* output.h (Output_data_dynamic::add_section_plus_offset): New function.
(Output_data_dynamic::Dynamic_entry): Add support for
section-plus-offset dynamic table entries.
(Output_data_dynamic::Classification): Likewise.
(Output_data_dynamic::classification_): Renamed offset_.
* x86_64.cc (Target_x86_64::Relocate::tls_desc_gd_to_ie): New function.
(Target_x86_64::Relocate::tls_desc_gd_to_le): New function.
(Target_x86_64::make_plt_section): New function.
(Target_x86_64::reserve_tlsdesc_entries): New function.
(Output_data_plt_x86_64::Output_data_plt_x86_64): Add new parameter.
(Output_data_plt_x86_64::reserve_tlsdesc_entry): New function.
(Output_data_plt_x86_64::has_tlsdesc_entry): New function.
(Output_data_plt_x86_64::get_tlsdesc_got_offset): New function.
(Output_data_plt_x86_64::get_tlsdesc_plt_offset): New function.
(Output_data_plt_x86_64::tlsdesc_plt_entry): New field.
(Output_data_plt_x86_64::set_final_data_size): Move out of line;
add extra PLT entry for TLS descriptors.
(Output_data_plt_x86_64::got_): New field.
(Output_data_plt_x86_64::tlsdesc_got_offset_): New field.
(Output_data_plt_x86_64::Output_data_plt_x86_64): Initialize new
fields.
(Output_data_plt_x86_64::do_write): Write extra PLT entry for TLS
descriptors.
(Target_x86_64::make_plt_entry): Factor out make_plt_section.
(Target_x86_64::got_mod_index_entry): Remove unnecessary code.
(Target_x86_64::Scan::local): Implement R_386_TLS_GOTDESC and
R_386_TLS_DESC_CALL relocations.
(Target_x86_64::Scan::global): Likewise.
(Target_x86_64::do_finalize_sections): Add dynamic table entries
for TLS descriptors.
(Relocate::relocate_tls): Fix problem with GD-to-IE relaxation.
Implement R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL relocations.
(Target_x86_64::Relocate::tls_gd_to_ie): Fix problem with
GD-to-IE relaxation.
* configure.ac: Export new conditional variables TLS_GNU2_DIALECT
and TLS_DESCRIPTORS.
* Makefile.in: Rebuild.
* configure: Rebuild.
* testsuite/Makefile.am (tls_shared_gd_to_ie_test): New target.
(tls_test_shared2.so): New target.
(tls_shared_gd_to_ie_test_SOURCES): New variable.
(tls_shared_gd_to_ie_test_DEPENDENCIES): New variable.
(tls_shared_gd_to_ie_test_LDFLAGS): New variable.
(tls_shared_gd_to_ie_test_LDADD): New variable.
(tls_shared_gnu2_gd_to_ie_test): New target.
(tls_test_gnu2.o, tls_test_file2_gnu2.o, tls_test_gnu2_shared2.so):
New targets.
(tls_shared_gnu2_gd_to_ie_test_SOURCES): New variable.
(ls_shared_gnu2_gd_to_ie_test_DEPENDENCIES): New variable.
(tls_shared_gnu2_gd_to_ie_test_LDFLAGS): New variable.
(tls_shared_gnu2_gd_to_ie_test_LDADD): New variable.
(tls_shared_gnu2_test): New target.
(tls_test_gnu2_shared.so): New target.
(tls_shared_gnu2_test_SOURCES): New variable.
(tls_shared_gnu2_test_DEPENDENCIES): New variable.
(tls_shared_gnu2_test_LDFLAGS): New variable.
(tls_shared_gnu2_test_LDADD): New variable.
* testsuite/Makefile.in: Rebuild.
* testsuite/Makefile.
Diffstat (limited to 'gold/configure.ac')
-rw-r--r-- | gold/configure.ac | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gold/configure.ac b/gold/configure.ac index aa7fea07c0..dd9ad8aa12 100644 --- a/gold/configure.ac +++ b/gold/configure.ac @@ -219,6 +219,27 @@ error AM_CONDITIONAL(STATIC_TLS, test "$gold_cv_lib_glibc24" = "yes") +dnl Test for the -ftls-dialect=gnu2 option. +save_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -mtls-dialect=gnu2" +AC_COMPILE_IFELSE([int i;], [have_tls_gnu2=yes], [have_tls_gnu2=no]) +CFLAGS="$save_CFLAGS" +AM_CONDITIONAL(TLS_GNU2_DIALECT, test "$have_tls_gnu2" = "yes") + +dnl On GNU/Linux TLS descriptors are supported by the dynamic loader +dnl only with glibc 2.5 or later. +AC_CACHE_CHECK([for glibc >= 2.5], [gold_cv_lib_glibc25], +[AC_COMPILE_IFELSE([ +#include <features.h> +#if !defined __GLIBC__ +error +#elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 5) +error +#endif +], [gold_cv_lib_glibc25=yes], [gold_cv_lib_glibc25=no])]) + +AM_CONDITIONAL(TLS_DESCRIPTORS, test "$gold_cv_lib_glibc25" = "yes") + dnl Check whether the compiler supports constructor priorities in dnl attributes, which were added in gcc 4.3. AC_CACHE_CHECK([for constructor priorities], [gold_cv_c_conprio], |