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| author | fanquake <fanquake@gmail.com> | 2021-11-18 14:12:47 +0800 |
|---|---|---|
| committer | fanquake <fanquake@gmail.com> | 2023-10-10 14:08:27 +0100 |
| commit | 61a6c3b0e9a8dab5c5f845af4becde817539133c (patch) | |
| tree | 9c72a4058793d961c2c926cf8904d0c5696e978b /configure.ac | |
| parent | 04265ba9378efbd4c35b33390b1e5cf246d420a9 (diff) | |
| download | bitcoin-61a6c3b0e9a8dab5c5f845af4becde817539133c.tar.xz | |
build: add `-mbranch-protection=bti` to aarch64 hardening flags
This is a simpler (less hardening) version of #24123.
Scoped to aarch64 to avoid unused command line option warnings when
building on x86_64.
Related to #19075.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 9b4b9bd42b..20358205ca 100644 --- a/configure.ac +++ b/configure.ac @@ -964,6 +964,11 @@ if test "$use_hardening" != "no"; then ;; esac + case $host in + *aarch64*) + AX_CHECK_COMPILE_FLAG([-mbranch-protection=bti], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -mbranch-protection=bti"]) + ;; + esac dnl When enable_debug is yes, all optimizations are disabled. dnl However, FORTIFY_SOURCE requires that there is some level of optimization, otherwise it does nothing and just creates a compiler warning. |