From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42521) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UkHXP-0003i2-9D for qemu-devel@nongnu.org; Wed, 05 Jun 2013 13:30:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UkHXD-0001oD-Mx for qemu-devel@nongnu.org; Wed, 05 Jun 2013 13:30:19 -0400 Received: from mail-qa0-x22f.google.com ([2607:f8b0:400d:c00::22f]:57502) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UkHXD-0001o3-J7 for qemu-devel@nongnu.org; Wed, 05 Jun 2013 13:30:07 -0400 Received: by mail-qa0-f47.google.com with SMTP id hv16so1139989qab.20 for ; Wed, 05 Jun 2013 10:30:07 -0700 (PDT) Sender: Richard Henderson From: Richard Henderson Date: Wed, 5 Jun 2013 10:29:27 -0700 Message-Id: <1370453368-21214-4-git-send-email-rth@twiddle.net> In-Reply-To: <1370453368-21214-1-git-send-email-rth@twiddle.net> References: <1370453368-21214-1-git-send-email-rth@twiddle.net> Subject: [Qemu-devel] [PATCH v2 3/4] tcg-i386: Use QEMU_BUILD_BUG_ON instead of assert for frame size List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aurelien@aurel32.net We can check the condition at compile time, rather than run time. Signed-off-by: Richard Henderson --- tcg/i386/tcg-target.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c index 7d946eb..991f484 100644 --- a/tcg/i386/tcg-target.c +++ b/tcg/i386/tcg-target.c @@ -2324,6 +2324,9 @@ typedef struct { uint8_t fde_reg_ofs[14]; } DebugFrame; +/* We're expecting a 2 byte uleb128 encoded value. */ +QEMU_BUILD_BUG_ON(FRAME_SIZE >= (1 << 14)); + #if !defined(__ELF__) /* Host machine without ELF. */ #elif TCG_TARGET_REG_BITS == 64 @@ -2387,9 +2390,6 @@ static DebugFrame debug_frame = { #if defined(ELF_HOST_MACHINE) void tcg_register_jit(void *buf, size_t buf_size) { - /* We're expecting a 2 byte uleb128 encoded value. */ - assert(FRAME_SIZE >> 14 == 0); - debug_frame.fde.func_start = (tcg_target_long) buf; debug_frame.fde.func_len = buf_size; -- 1.8.1.4