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| author | Nick Mathewson <nickm@torproject.org> | 2019-05-29 16:08:33 -0400 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2019-05-29 16:08:33 -0400 |
| commit | 66eae4afffb35afe891ec14a3389a484ecb7b373 (patch) | |
| tree | d0ff1137c38d3059428a0eed0efbd507a9b6faea /configure.ac | |
| parent | 70553a91343e242e05e569d59584674a21d09679 (diff) | |
| download | tor-66eae4afffb35afe891ec14a3389a484ecb7b373.tar.gz tor-66eae4afffb35afe891ec14a3389a484ecb7b373.zip | |
Check whether gcc-hardening is runnable, and log an error if not
Closes ticket 27530.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index e7f959f17a..1ecf82c662 100644 --- a/configure.ac +++ b/configure.ac @@ -1188,6 +1188,17 @@ m4_ifdef([AS_VAR_IF],[ TOR_CHECK_LDFLAGS(-pie, "$all_ldflags_for_check", "$all_libs_for_check") fi TOR_TRY_COMPILE_WITH_CFLAGS(-fwrapv, also_link, CFLAGS_FWRAPV="-fwrapv", true) + + AC_MSG_CHECKING([whether we can run hardened binaries]) + AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 0;])], + [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + AC_MSG_ERROR([dnl + We can link with compiler hardening options, but we can't run with them. + That's a bad sign! If you must, you can pass --disable-gcc-hardening to + configure, but it would be better to figure out what the underlying problem + is.])], + [AC_MSG_RESULT([cross])]) fi if test "$fragile_hardening" = "yes"; then |