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| author | H.J. Lu <hjl.tools@gmail.com> | 2016-06-22 05:39:22 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-06-22 05:39:39 -0700 |
| commit | 6b1edb94fedc7103b4929354d27304d0bd756f49 (patch) | |
| tree | 8ec307e7bd06be77c1e3ee1f0035494f54520297 /gold/configure.ac | |
| parent | 647e4d46495f2bfb0950fd1066c8a660173cca40 (diff) | |
| download | gdb-6b1edb94fedc7103b4929354d27304d0bd756f49.zip gdb-6b1edb94fedc7103b4929354d27304d0bd756f49.tar.gz gdb-6b1edb94fedc7103b4929354d27304d0bd756f49.tar.bz2 | |
gold: Add a linker configure option --enable-relro
Add a configure option --enable-relro to decide whether -z relro should
be enabled by default. Default to yes.
PR ld/20283
* NEWS: Mention --enable-relro.
* configure.ac: Add --enable-relro.
(DEFAULT_LD_Z_RELRO): New. Set by --enable-relro and default
to 1.
* config.in: Regenerated.
* configure: Likewise.
* options.h (General_options::relro): Default to
DEFAULT_LD_Z_RELRO.
Diffstat (limited to 'gold/configure.ac')
| -rw-r--r-- | gold/configure.ac | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gold/configure.ac b/gold/configure.ac index 695a2fd..90e2c22 100644 --- a/gold/configure.ac +++ b/gold/configure.ac @@ -114,6 +114,23 @@ if test "$plugins" = "yes"; then fi AM_CONDITIONAL(PLUGINS, test "$plugins" = "yes") +# Decide if -z relro should be enabled in ELF linker by default. +ac_default_ld_z_relro=unset +# Provide a configure time option to override our default. +AC_ARG_ENABLE(relro, + AS_HELP_STRING([--enable-relro], + [enable -z relro in ELF linker by default]), +[case "${enableval}" in + yes) ac_default_ld_z_relro=1 ;; + no) ac_default_ld_z_relro=0 ;; +esac])dnl +if test "${ac_default_ld_z_relro}" = unset; then + ac_default_ld_z_relro=1 +fi +AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_RELRO, + $ac_default_ld_z_relro, + [Define to 1 if you want to enable -z relro in ELF linker by default.]) + AC_ARG_ENABLE([targets], [ --enable-targets alternative target configurations], [case "${enableval}" in |