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| author | Richard Earnshaw <Richard.Earnshaw@arm.com> | 2020-12-21 15:03:03 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@arm.com> | 2020-12-21 15:25:25 +0000 |
| commit | 3378408987189772eec7bc62fc9923a6f01dc63c (patch) | |
| tree | 91852b072e2b766bfc63ab738424c70d3ee92d3d /configure.ac | |
| parent | d552058570ea2c00fb88b4621be3285cda03033f (diff) | |
| download | glibc-3378408987189772eec7bc62fc9923a6f01dc63c.tar.gz glibc-3378408987189772eec7bc62fc9923a6f01dc63c.tar.xz glibc-3378408987189772eec7bc62fc9923a6f01dc63c.zip | |
config: Allow memory tagging to be enabled when configuring glibc
This patch adds the configuration machinery to allow memory tagging to be enabled from the command line via the configure option --enable-memory-tagging. The current default is off, though in time we may change that once the API is more stable.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 93e68fb696..43cfac9d48 100644 --- a/configure.ac +++ b/configure.ac @@ -311,6 +311,21 @@ AC_ARG_ENABLE([experimental-malloc], [experimental_malloc=yes]) AC_SUBST(experimental_malloc) +AC_ARG_ENABLE([memory-tagging], + AC_HELP_STRING([--enable-memory-tagging], + [enable memory tagging if supported by the architecture @<:@default=no@:>@]), + [memory_tagging=$enableval], + [memory_tagging=no]) +if test "$memory_tagging" = yes; then + # Only enable this on architectures that support it. + case $host_cpu in + aarch64) + AC_DEFINE(USE_MTAG) + ;; + esac +fi +AC_SUBST(memory_tagging) + AC_ARG_ENABLE([crypt], AC_HELP_STRING([--disable-crypt], [do not build nor install the passphrase hashing library, libcrypt]), |