commit d8352646900c6316af8e2967742ce6a438b04221 Author: Nick Mathewson <nickm@torproject.org> Date: Sun Jul 12 14:48:48 2015 -0400 Disable -Wstack-protector diagnostics in curve25519-donna-helpers.h This was causing a false positive on our arm builders. --- src/ext/ed25519/donna/curve25519-donna-helpers.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/ext/ed25519/donna/curve25519-donna-helpers.h b/src/ext/ed25519/donna/curve25519-donna-helpers.h index e4058ff..ca442fa 100644 --- a/src/ext/ed25519/donna/curve25519-donna-helpers.h +++ b/src/ext/ed25519/donna/curve25519-donna-helpers.h @@ -5,6 +5,19 @@ Curve25519 implementation agnostic helpers */ +#ifdef __GNUC__ +#define ED_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) +#endif + +#if __GNUC__ && ED_GCC_VERSION >= 401 +#if ED_GCC_VERSION >= 406 +#pragma GCC diagnostic push +#endif +/* Some versions of GCC (particularly on arm) give us bogus warnings here. + * Suppress the GCC warning so we can build Tor with -Wstack-protector. */ +#pragma GCC diagnostic ignored "-Wstack-protector" +#endif + /* * In: b = 2^5 - 2^0 * Out: b = 2^250 - 2^0 @@ -65,3 +78,7 @@ curve25519_pow_two252m3(bignum25519 two252m3, const bignum25519 z) { /* 2^252 - 2^2 */ curve25519_square_times(b, b, 2); /* 2^252 - 3 */ curve25519_mul_noinline(two252m3, b, z); } + +#if __GNUC__ && ED_GCC_VERSION >= 406 +#pragma GCC diagnostic pop +#endif