From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
To: M1cha <sigmaepsilon92@gmail.com>
Cc: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>,
Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <liming.gao@intel.com>
Subject: Re: [PATCH 1/3] MdePkg: add RETURNS_TWICE attribute
Date: Fri, 22 Dec 2017 15:24:01 +0000 [thread overview]
Message-ID: <CAKv+Gu9ccfbOYV-2j_3z9Us+w9oo4WT44w+QOhG+wZkR2qG09Q@mail.gmail.com> (raw)
In-Reply-To: <20171222072336.23504-2-sigmaepsilon92@gmail.com>
On 22 December 2017 at 07:23, M1cha <sigmaepsilon92@gmail.com> wrote:
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
> ---
> MdePkg/Include/Base.h | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h
> index 22ab5d3715fb..c863de407418 100644
> --- a/MdePkg/Include/Base.h
> +++ b/MdePkg/Include/Base.h
> @@ -218,6 +218,16 @@ VERIFY_SIZE_OF (__VERIFY_UINT32_ENUM_SIZE, 4);
> #endif
> #endif
>
> +#ifndef RETURNS_TWICE
> + #if defined (__GNUC__) || defined (__clang__)
> + #define RETURNS_TWICE __attribute__((returns_twice))
> + #elif defined(_MSC_EXTENSIONS) && !defined(MDE_CPU_EBC)
> + #define RETURNS_TWICE
> + #else
> + #define RETURNS_TWICE
What is the point of having two versions that are #defined to nothing?
> + #endif
> +#endif
> +
> //
> // For symbol name in assembly code, an extra "_" is sometimes necessary
> //
> --
> 2.15.1
>
next prev parent reply other threads:[~2017-12-22 15:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-22 7:23 [PATCH 0/3] fix GCC optimizations and warnings for SetJump/LongJump M1cha
2017-12-22 7:23 ` [PATCH 1/3] MdePkg: add RETURNS_TWICE attribute M1cha
2017-12-22 15:24 ` Ard Biesheuvel [this message]
2017-12-22 18:27 ` Michael Zimmermann
2017-12-25 3:11 ` Gao, Liming
2017-12-25 15:50 ` Michael Zimmermann
2017-12-26 16:51 ` Gao, Liming
2017-12-26 20:00 ` Michael Zimmermann
2017-12-27 15:56 ` Gao, Liming
2017-12-22 7:23 ` [PATCH 2/3] MdePkg/BaseLib: add attribute 'RETURNS_TWICE' to SetJump M1cha
2017-12-22 15:27 ` Ard Biesheuvel
2017-12-22 7:23 ` [PATCH 3/3] MdePkg: add NORETURN attribute to LongJump and InternalLongJump M1cha
2017-12-22 15:27 ` Ard Biesheuvel
2017-12-22 17:55 ` [PATCH 0/3] fix GCC optimizations and warnings for SetJump/LongJump Kinney, Michael D
2017-12-22 18:26 ` Michael Zimmermann
2017-12-22 19:01 ` Kinney, Michael D
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