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| author | Fangrui Song <maskray@google.com> | 2020-06-03 06:37:39 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-06-03 06:37:39 -0700 |
| commit | 37a141bfed4dd3c33d77c15dfde00e4b4f5b24c7 (patch) | |
| tree | 05fc3a047c219a7e59357a758472a566e926a570 /ld/NEWS | |
| parent | 433953ffa1a59531a5537327a4e3ce24565e609c (diff) | |
| download | binutils-gdb-37a141bfed4dd3c33d77c15dfde00e4b4f5b24c7.tar.gz | |
ld: Add --export-dynamic-symbol and --export-dynamic-symbol-list
--export-dynamic-symbol-list is like a dynamic list, but without
the symbolic property for unspecified symbols.
When creating an executable, --export-dynamic-symbol-list is treated
like --dynamic-list.
When creating a shared library, it is treated like --dynamic-list if
-Bsymbolic or --dynamic-list are used, otherwise, it is ignored, so
that references to matched symbols will not be bound to the definitions
within the shared library.
PR ld/25910
* NEWS: Mention --export-dynamic-symbol[-list].
* ld.texi: Document --export-dynamic-symbol[-list].
* ldgram.y: Pass current_dynamic_list_p to
lang_append_dynamic_list.
* ldlang.c (current_dynamic_list_p): New.
(ang_append_dynamic_list): Updated to take a pointer to
struct bfd_elf_dynamic_list * argument instead of using
link_info.dynamic_list.
(lang_append_dynamic_list_cpp_typeinfo): Pass
&link_info.dynamic_list to ang_append_dynamic_list.
(lang_append_dynamic_list_cpp_new): Likewise.
* ldlang.h (current_dynamic_list_p): New.
(lang_append_dynamic_list): Add a pointer to
struct bfd_elf_dynamic_list * argument.
* ldlex.h (option_values): Add OPTION_EXPORT_DYNAMIC_SYMBOL and
OPTION_EXPORT_DYNAMIC_SYMBOL_LIST.
* lexsup.c (ld_options): Add entries for
OPTION_EXPORT_DYNAMIC_SYMBOL and
OPTION_EXPORT_DYNAMIC_SYMBOL_LIST.
(parse_args): Handle --export-dynamic-symbol and
--export-dynamic-symbol-list.
* testsuite/ld-dynamic/export-dynamic-symbol-1.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-2.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-glob.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-list-1.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-list-2.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-list-glob.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol.exp: New.
* testsuite/ld-dynamic/export-dynamic-symbol.s: New.
* testsuite/ld-dynamic/foo-bar.list: New.
* testsuite/ld-dynamic/foo.list: New.
* testsuite/ld-dynamic/foo.s: New.
* testsuite/ld-dynamic/fstar.list: New.
* testsuite/ld-elf/dlempty.list: New.
* testsuite/ld-elf/shared.exp: Add tests for
--export-dynamic-symbol and --export-dynamic-symbol-list.
Diffstat (limited to 'ld/NEWS')
| -rw-r--r-- | ld/NEWS | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -1,5 +1,8 @@ -*- text -*- +* Add ELF linker command-line options, --export-dynamic-symbol and + --export-dynamic-symbol-list, to make symbols dynamic. + * Add a configure option, --enable-textrel-check=[no|yes|warning|error], to decide what ELF linker should do by default with DT_TEXTREL in an executable or shared library. Default to yes for Linux/x86 targets. |