From 03784fa97a764be81ca9bcf79222e7b37e2e7692 Mon Sep 17 00:00:00 2001 From: Julius Werner Date: Mon, 9 Dec 2013 17:46:22 -0800 Subject: Add check_member macro to allow clean and easy struct offset checking This patch adds a new static assertion macro that can be used to check the offsets in structures that overlay register sets at compile time. It uses the _Static_assert() declaration from the new ISO C11 standard, which is supported (even without -std=c11) by GCC after version 4.6. (There is supposedly also support in clang, although I haven't tried it... let's deal with compiler issues when/if they turn up.) I've added it to all structures for our current ARM SoCs for now, and I think every new register overlay we add going forward should use them (at least for the last member, but feel free to add more if you think it's useful). Change-Id: If32510e7049739ad05618d363a854dc372d64386 Signed-off-by: Julius Werner Reviewed-on: https://chromium-review.googlesource.com/179412 Reviewed-by: David Hendricks Reviewed-by: Stefan Reinauer (cherry picked from commit cef5fa13c31375a316ca4556c0039b17c8ea7900) Signed-off-by: Isaac Christensen Reviewed-on: http://review.coreboot.org/6905 Tested-by: build bot (Jenkins) --- src/soc/samsung/exynos5420/tmu.h | 1 + 1 file changed, 1 insertion(+) (limited to 'src/soc/samsung/exynos5420/tmu.h') diff --git a/src/soc/samsung/exynos5420/tmu.h b/src/soc/samsung/exynos5420/tmu.h index cf81b9ad33..3085b0718e 100644 --- a/src/soc/samsung/exynos5420/tmu.h +++ b/src/soc/samsung/exynos5420/tmu.h @@ -57,6 +57,7 @@ struct tmu_reg { unsigned rsvd15; unsigned emul_con; }; +check_member(tmu_reg, emul_con, 0x80); enum tmu_status_t { TMU_STATUS_INIT = 0, -- cgit v1.2.3